initial commit

2026-01-25 18:58:40 +09:00
commit 77af47274c
101 changed files with 16247 additions and 0 deletions
--- a/flutter/.gitignore
+++ b/flutter/.gitignore
@@ -0,0 +1,45 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.build/
+.buildlog/
+.history
+.svn/
+.swiftpm/
+migrate_working_dir/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+**/ios/Flutter/.last_build_id
+.dart_tool/
+.flutter-plugins-dependencies
+.pub-cache/
+.pub/
+/build/
+/coverage/
+
+# Symbolication related
+app.*.symbols
+
+# Obfuscation related
+app.*.map.json
+
+# Android Studio will place build artifacts here
+/android/app/debug
+/android/app/profile
+/android/app/release
--- a/flutter/.metadata
+++ b/flutter/.metadata
@@ -0,0 +1,30 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: "19074d12f7eaf6a8180cd4036a430c1d76de904e"
+  channel: "stable"
+
+project_type: app
+
+# Tracks metadata for the flutter migrate command
+migration:
+  platforms:
+    - platform: root
+      create_revision: 19074d12f7eaf6a8180cd4036a430c1d76de904e
+      base_revision: 19074d12f7eaf6a8180cd4036a430c1d76de904e
+    - platform: macos
+      create_revision: 19074d12f7eaf6a8180cd4036a430c1d76de904e
+      base_revision: 19074d12f7eaf6a8180cd4036a430c1d76de904e
+
+  # User provided section
+
+  # List of Local paths (relative to this file) that should be
+  # ignored by the migrate tool.
+  #
+  # Files that are not part of the templates will be ignored by default.
+  unmanaged_files:
+    - 'lib/main.dart'
+    - 'ios/Runner.xcodeproj/project.pbxproj'
--- a/flutter/README.md
+++ b/flutter/README.md
@@ -0,0 +1,38 @@
+# Supertonic Flutter Example
+
+This example demonstrates how to use Supertonic 2 in a Flutter application using ONNX Runtime.
+
+> **Note:** This project uses the `flutter_onnxruntime` package ([https://pub.dev/packages/flutter_onnxruntime](https://pub.dev/packages/flutter_onnxruntime)). At the moment, only the macOS platform has been tested. Although the flutter_onnxruntime package supports several other platforms, they have not been tested in this project yet and may require additional verification.
+
+
+## 📰 Update News
+
+**2026.01.06** - 🎉 **Supertonic 2** released with multilingual support! Now supports English (`en`), Korean (`ko`), Spanish (`es`), Portuguese (`pt`), and French (`fr`). [Demo](https://huggingface.co/spaces/Supertone/supertonic-2) | [Models](https://huggingface.co/Supertone/supertonic-2)
+
+**2025.12.10** - Added [6 new voice styles](https://huggingface.co/Supertone/supertonic/tree/b10dbaf18b316159be75b34d24f740008fddd381) (M3, M4, M5, F3, F4, F5). See [Voices](https://supertone-inc.github.io/supertonic-py/voices/) for details
+
+**2025.12.08** - Optimized ONNX models via [OnnxSlim](https://github.com/inisis/OnnxSlim) now available on [Hugging Face Models](https://huggingface.co/Supertone/supertonic)
+
+**2025.11.23** - Added and tested macos support.
+
+## Multilingual Support
+
+Supertonic 2 supports multiple languages. Select the appropriate language from the dropdown:
+- **English (en)**: Default language
+- **한국어 (ko)**: Korean
+- **Español (es)**: Spanish
+- **Português (pt)**: Portuguese
+- **Français (fr)**: French
+
+## Requirements
+
+- Flutter SDK version ^3.5.0
+
+## Running the Demo
+
+```bash
+flutter clean
+flutter pub get
+flutter run -d macos
+```
+
--- a/flutter/analysis_options.yaml
+++ b/flutter/analysis_options.yaml
@@ -0,0 +1,28 @@
+# This file configures the analyzer, which statically analyzes Dart code to
+# check for errors, warnings, and lints.
+#
+# The issues identified by the analyzer are surfaced in the UI of Dart-enabled
+# IDEs (https://dart.dev/tools#ides-and-editors). The analyzer can also be
+# invoked from the command line by running `flutter analyze`.
+
+# The following line activates a set of recommended lints for Flutter apps,
+# packages, and plugins designed to encourage good coding practices.
+include: package:flutter_lints/flutter.yaml
+
+linter:
+  # The lint rules applied to this project can be customized in the
+  # section below to disable rules from the `package:flutter_lints/flutter.yaml`
+  # included above or to enable additional rules. A list of all available lints
+  # and their documentation is published at https://dart.dev/lints.
+  #
+  # Instead of disabling a lint rule for the entire project in the
+  # section below, it can also be suppressed for a single line of code
+  # or a specific dart file by using the `// ignore: name_of_lint` and
+  # `// ignore_for_file: name_of_lint` syntax on the line or in the file
+  # producing the lint.
+  rules:
+    # avoid_print: false  # Uncomment to disable the `avoid_print` rule
+    # prefer_single_quotes: true  # Uncomment to enable the `prefer_single_quotes` rule
+
+# Additional information about this file can be found at
+# https://dart.dev/guides/language/analysis-options
--- a/flutter/lib/helper.dart
+++ b/flutter/lib/helper.dart
@@ -0,0 +1,695 @@
+import 'dart:io';
+import 'dart:convert';
+import 'dart:math' as math;
+import 'dart:typed_data';
+import 'package:flutter/services.dart' show rootBundle;
+import 'package:flutter_onnxruntime/flutter_onnxruntime.dart';
+import 'package:logger/logger.dart';
+import 'package:path_provider/path_provider.dart';
+
+final logger = Logger(
+  printer: PrettyPrinter(methodCount: 0, errorMethodCount: 5, lineLength: 80),
+);
+
+// Available languages for multilingual TTS
+const List<String> availableLangs = ['en', 'ko', 'es', 'pt', 'fr'];
+
+bool isValidLang(String lang) => availableLangs.contains(lang);
+
+// Hangul Jamo constants for NFKD decomposition
+const int _hangulSyllableBase = 0xAC00;
+const int _hangulSyllableEnd = 0xD7A3;
+const int _leadingJamoBase = 0x1100;
+const int _vowelJamoBase = 0x1161;
+const int _trailingJamoBase = 0x11A7;
+const int _vowelCount = 21;
+const int _trailingCount = 28;
+
+/// Decompose a Hangul syllable into Jamo (NFKD-like decomposition)
+List<int> _decomposeHangulSyllable(int codePoint) {
+  if (codePoint < _hangulSyllableBase || codePoint > _hangulSyllableEnd) {
+    return [codePoint];
+  }
+
+  final syllableIndex = codePoint - _hangulSyllableBase;
+  final leadingIndex = syllableIndex ~/ (_vowelCount * _trailingCount);
+  final vowelIndex =
+      (syllableIndex % (_vowelCount * _trailingCount)) ~/ _trailingCount;
+  final trailingIndex = syllableIndex % _trailingCount;
+
+  final result = <int>[
+    _leadingJamoBase + leadingIndex,
+    _vowelJamoBase + vowelIndex,
+  ];
+
+  if (trailingIndex > 0) {
+    result.add(_trailingJamoBase + trailingIndex);
+  }
+
+  return result;
+}
+
+/// Common Latin character decompositions (NFKD) for es, pt, fr
+const Map<int, List<int>> _latinDecompositions = {
+  // Uppercase with acute accent
+  0x00C1: [0x0041, 0x0301], // Á → A + ́
+  0x00C9: [0x0045, 0x0301], // É → E + ́
+  0x00CD: [0x0049, 0x0301], // Í → I + ́
+  0x00D3: [0x004F, 0x0301], // Ó → O + ́
+  0x00DA: [0x0055, 0x0301], // Ú → U + ́
+  // Lowercase with acute accent
+  0x00E1: [0x0061, 0x0301], // á → a + ́
+  0x00E9: [0x0065, 0x0301], // é → e + ́
+  0x00ED: [0x0069, 0x0301], // í → i + ́
+  0x00F3: [0x006F, 0x0301], // ó → o + ́
+  0x00FA: [0x0075, 0x0301], // ú → u + ́
+  // Grave accent
+  0x00C0: [0x0041, 0x0300], // À → A + ̀
+  0x00C8: [0x0045, 0x0300], // È → E + ̀
+  0x00CC: [0x0049, 0x0300], // Ì → I + ̀
+  0x00D2: [0x004F, 0x0300], // Ò → O + ̀
+  0x00D9: [0x0055, 0x0300], // Ù → U + ̀
+  0x00E0: [0x0061, 0x0300], // à → a + ̀
+  0x00E8: [0x0065, 0x0300], // è → e + ̀
+  0x00EC: [0x0069, 0x0300], // ì → i + ̀
+  0x00F2: [0x006F, 0x0300], // ò → o + ̀
+  0x00F9: [0x0075, 0x0300], // ù → u + ̀
+  // Circumflex
+  0x00C2: [0x0041, 0x0302], // Â → A + ̂
+  0x00CA: [0x0045, 0x0302], // Ê → E + ̂
+  0x00CE: [0x0049, 0x0302], // Î → I + ̂
+  0x00D4: [0x004F, 0x0302], // Ô → O + ̂
+  0x00DB: [0x0055, 0x0302], // Û → U + ̂
+  0x00E2: [0x0061, 0x0302], // â → a + ̂
+  0x00EA: [0x0065, 0x0302], // ê → e + ̂
+  0x00EE: [0x0069, 0x0302], // î → i + ̂
+  0x00F4: [0x006F, 0x0302], // ô → o + ̂
+  0x00FB: [0x0075, 0x0302], // û → u + ̂
+  // Tilde
+  0x00C3: [0x0041, 0x0303], // Ã → A + ̃
+  0x00D1: [0x004E, 0x0303], // Ñ → N + ̃
+  0x00D5: [0x004F, 0x0303], // Õ → O + ̃
+  0x00E3: [0x0061, 0x0303], // ã → a + ̃
+  0x00F1: [0x006E, 0x0303], // ñ → n + ̃
+  0x00F5: [0x006F, 0x0303], // õ → o + ̃
+  // Diaeresis/Umlaut
+  0x00C4: [0x0041, 0x0308], // Ä → A + ̈
+  0x00CB: [0x0045, 0x0308], // Ë → E + ̈
+  0x00CF: [0x0049, 0x0308], // Ï → I + ̈
+  0x00D6: [0x004F, 0x0308], // Ö → O + ̈
+  0x00DC: [0x0055, 0x0308], // Ü → U + ̈
+  0x00E4: [0x0061, 0x0308], // ä → a + ̈
+  0x00EB: [0x0065, 0x0308], // ë → e + ̈
+  0x00EF: [0x0069, 0x0308], // ï → i + ̈
+  0x00F6: [0x006F, 0x0308], // ö → o + ̈
+  0x00FC: [0x0075, 0x0308], // ü → u + ̈
+  // Cedilla
+  0x00C7: [0x0043, 0x0327], // Ç → C + ̧
+  0x00E7: [0x0063, 0x0327], // ç → c + ̧
+};
+
+/// Apply NFKD-like decomposition (Hangul + Latin accented characters)
+String _applyNfkdDecomposition(String text) {
+  final result = <int>[];
+  for (final codePoint in text.runes) {
+    // Check Hangul first
+    if (codePoint >= _hangulSyllableBase && codePoint <= _hangulSyllableEnd) {
+      result.addAll(_decomposeHangulSyllable(codePoint));
+    }
+    // Check Latin decomposition
+    else if (_latinDecompositions.containsKey(codePoint)) {
+      result.addAll(_latinDecompositions[codePoint]!);
+    }
+    // Keep as-is
+    else {
+      result.add(codePoint);
+    }
+  }
+  return String.fromCharCodes(result);
+}
+
+String preprocessText(String text, String lang) {
+  // Apply NFKD-like decomposition (especially for Hangul syllables → Jamo)
+  text = _applyNfkdDecomposition(text);
+
+  // Remove emojis
+  text = text.replaceAll(
+      RegExp(
+        r'[\u{1F600}-\u{1F64F}]|[\u{1F300}-\u{1F5FF}]|[\u{1F680}-\u{1F6FF}]|'
+        r'[\u{1F700}-\u{1F77F}]|[\u{1F780}-\u{1F7FF}]|[\u{1F800}-\u{1F8FF}]|'
+        r'[\u{1F900}-\u{1F9FF}]|[\u{1FA00}-\u{1FA6F}]|[\u{1FA70}-\u{1FAFF}]|'
+        r'[\u{2600}-\u{26FF}]|[\u{2700}-\u{27BF}]|[\u{1F1E6}-\u{1F1FF}]',
+        unicode: true,
+      ),
+      '');
+
+  // Replace various dashes and symbols
+  const replacements = {
+    '–': '-',
+    '‑': '-',
+    '—': '-',
+    '_': ' ',
+    '\u201C': '"',
+    '\u201D': '"',
+    '\u2018': "'",
+    '\u2019': "'",
+    '´': "'",
+    '`': "'",
+    '[': ' ',
+    ']': ' ',
+    '|': ' ',
+    '/': ' ',
+    '#': ' ',
+    '→': ' ',
+    '←': ' ',
+  };
+  for (final entry in replacements.entries) {
+    text = text.replaceAll(entry.key, entry.value);
+  }
+
+  // Remove special symbols
+  text = text.replaceAll(RegExp(r'[♥☆♡©\\]'), '');
+
+  // Replace known expressions
+  text = text.replaceAll('@', ' at ');
+  text = text.replaceAll('e.g.,', 'for example, ');
+  text = text.replaceAll('i.e.,', 'that is, ');
+
+  // Fix spacing around punctuation
+  text = text.replaceAll(' ,', ',');
+  text = text.replaceAll(' .', '.');
+  text = text.replaceAll(' !', '!');
+  text = text.replaceAll(' ?', '?');
+  text = text.replaceAll(' ;', ';');
+  text = text.replaceAll(' :', ':');
+  text = text.replaceAll(" '", "'");
+
+  // Remove duplicate quotes
+  while (text.contains('""')) text = text.replaceAll('""', '"');
+  while (text.contains("''")) text = text.replaceAll("''", "'");
+  while (text.contains('``')) text = text.replaceAll('``', '`');
+
+  // Remove extra spaces
+  text = text.replaceAll(RegExp(r'\s+'), ' ').trim();
+
+  // Add period if needed
+  if (text.isNotEmpty &&
+      !RegExp(r'[.!?;:,\x27\x22\u2018\u2019)\]}…。」』】〉》›»]$').hasMatch(text)) {
+    text += '.';
+  }
+
+  // Validate language
+  if (!isValidLang(lang)) {
+    throw ArgumentError(
+        'Invalid language: $lang. Available: ${availableLangs.join(", ")}');
+  }
+
+  // Wrap text with language tags
+  text = '<$lang>$text</$lang>';
+
+  return text;
+}
+
+class UnicodeProcessor {
+  final Map<int, int> indexer;
+
+  UnicodeProcessor._(this.indexer);
+
+  static Future<UnicodeProcessor> load(String path) async {
+    final json = jsonDecode(
+      path.startsWith('assets/')
+          ? await rootBundle.loadString(path)
+          : File(path).readAsStringSync(),
+    );
+
+    final indexer = json is List
+        ? {
+            for (var i = 0; i < json.length; i++)
+              if (json[i] is int && json[i] >= 0) i: json[i] as int
+          }
+        : (json as Map<String, dynamic>)
+            .map((k, v) => MapEntry(int.parse(k), v as int));
+
+    return UnicodeProcessor._(indexer);
+  }
+
+  Map<String, dynamic> call(List<String> textList, List<String> langList) {
+    // Preprocess texts with language tags
+    final processedTexts = <String>[];
+    for (var i = 0; i < textList.length; i++) {
+      processedTexts.add(preprocessText(textList[i], langList[i]));
+    }
+
+    final lengths = processedTexts.map((t) => t.runes.length).toList();
+    final maxLen = lengths.reduce(math.max);
+
+    final textIds = processedTexts.map((text) {
+      final row = List<int>.filled(maxLen, 0);
+      final runes = text.runes.toList();
+      for (var i = 0; i < runes.length; i++) {
+        row[i] = indexer[runes[i]] ?? 0;
+      }
+      return row;
+    }).toList();
+
+    return {'textIds': textIds, 'textMask': _lengthToMask(lengths)};
+  }
+
+  List<List<List<double>>> _lengthToMask(List<int> lengths, [int? maxLen]) {
+    maxLen ??= lengths.reduce(math.max);
+    return lengths
+        .map((len) => [List.generate(maxLen!, (i) => i < len ? 1.0 : 0.0)])
+        .toList();
+  }
+}
+
+class Style {
+  final OrtValue ttl, dp;
+  final List<int> ttlShape, dpShape;
+  Style(this.ttl, this.dp, this.ttlShape, this.dpShape);
+}
+
+class TextToSpeech {
+  final Map<String, dynamic> cfgs;
+  final UnicodeProcessor textProcessor;
+  final OrtSession dpOrt, textEncOrt, vectorEstOrt, vocoderOrt;
+  final int sampleRate, baseChunkSize, chunkCompressFactor, ldim;
+
+  TextToSpeech(this.cfgs, this.textProcessor, this.dpOrt, this.textEncOrt,
+      this.vectorEstOrt, this.vocoderOrt)
+      : sampleRate = cfgs['ae']['sample_rate'],
+        baseChunkSize = cfgs['ae']['base_chunk_size'],
+        chunkCompressFactor = cfgs['ttl']['chunk_compress_factor'],
+        ldim = cfgs['ttl']['latent_dim'];
+
+  Future<Map<String, dynamic>> call(
+      String text, String lang, Style style, int totalStep,
+      {double speed = 1.05, double silenceDuration = 0.3}) async {
+    final maxLen = lang == 'ko' ? 120 : 300;
+    final chunks = _chunkText(text, maxLen: maxLen);
+    final langList = List.filled(chunks.length, lang);
+    List<double>? wavCat;
+    double durCat = 0;
+
+    for (var i = 0; i < chunks.length; i++) {
+      final result = await _infer([chunks[i]], [langList[i]], style, totalStep,
+          speed: speed);
+      final wav = _safeCast<double>(result['wav']);
+      final duration = _safeCast<double>(result['duration']);
+
+      if (wavCat == null) {
+        wavCat = wav;
+        durCat = duration[0];
+      } else {
+        wavCat = [
+          ...wavCat,
+          ...List<double>.filled((silenceDuration * sampleRate).floor(), 0.0),
+          ...wav
+        ];
+        durCat += duration[0] + silenceDuration;
+      }
+    }
+
+    return {
+      'wav': wavCat,
+      'duration': [durCat]
+    };
+  }
+
+  Future<Map<String, dynamic>> _infer(
+      List<String> textList, List<String> langList, Style style, int totalStep,
+      {double speed = 1.05}) async {
+    final bsz = textList.length;
+    final result = textProcessor.call(textList, langList);
+
+    final textIdsRaw = result['textIds'];
+    final textIds = textIdsRaw is List<List<int>>
+        ? textIdsRaw
+        : (textIdsRaw as List).map((row) => (row as List).cast<int>()).toList();
+
+    final textMaskRaw = result['textMask'];
+    final textMask = textMaskRaw is List<List<List<double>>>
+        ? textMaskRaw
+        : (textMaskRaw as List)
+            .map((batch) => (batch as List)
+                .map((row) => (row as List).cast<double>())
+                .toList())
+            .toList();
+
+    final textIdsShape = [bsz, textIds[0].length];
+    final textMaskShape = [bsz, 1, textMask[0][0].length];
+    final textMaskTensor = await _toTensor(textMask, textMaskShape);
+
+    final dpResult = await dpOrt.run({
+      'text_ids': await _intToTensor(textIds, textIdsShape),
+      'style_dp': style.dp,
+      'text_mask': textMaskTensor,
+    });
+    final durOnnx = _safeCast<double>(await dpResult.values.first.asList());
+    final scaledDur = durOnnx.map((d) => d / speed).toList();
+
+    final textEncResult = await textEncOrt.run({
+      'text_ids': await _intToTensor(textIds, textIdsShape),
+      'style_ttl': style.ttl,
+      'text_mask': textMaskTensor,
+    });
+
+    final latentData = _sampleNoisyLatent(scaledDur);
+    final noisyLatentRaw = latentData['noisyLatent'];
+    var noisyLatent = noisyLatentRaw is List<List<List<double>>>
+        ? noisyLatentRaw
+        : (noisyLatentRaw as List)
+            .map((batch) => (batch as List)
+                .map((row) => (row as List).cast<double>())
+                .toList())
+            .toList();
+
+    final latentMaskRaw = latentData['latentMask'];
+    final latentMask = latentMaskRaw is List<List<List<double>>>
+        ? latentMaskRaw
+        : (latentMaskRaw as List)
+            .map((batch) => (batch as List)
+                .map((row) => (row as List).cast<double>())
+                .toList())
+            .toList();
+
+    final latentShape = [bsz, noisyLatent[0].length, noisyLatent[0][0].length];
+    final latentMaskTensor =
+        await _toTensor(latentMask, [bsz, 1, latentMask[0][0].length]);
+
+    final totalStepTensor =
+        await _scalarToTensor(List.filled(bsz, totalStep.toDouble()), [bsz]);
+
+    // Denoising loop
+    for (var step = 0; step < totalStep; step++) {
+      final result = await vectorEstOrt.run({
+        'noisy_latent': await _toTensor(noisyLatent, latentShape),
+        'text_emb': textEncResult.values.first,
+        'style_ttl': style.ttl,
+        'text_mask': textMaskTensor,
+        'latent_mask': latentMaskTensor,
+        'total_step': totalStepTensor,
+        'current_step':
+            await _scalarToTensor(List.filled(bsz, step.toDouble()), [bsz]),
+      });
+
+      final denoisedRaw = await result.values.first.asList();
+      final denoised = denoisedRaw is List<double>
+          ? denoisedRaw
+          : _safeCast<double>(denoisedRaw);
+      var idx = 0;
+      for (var b = 0; b < noisyLatent.length; b++) {
+        for (var d = 0; d < noisyLatent[b].length; d++) {
+          for (var t = 0; t < noisyLatent[b][d].length; t++) {
+            noisyLatent[b][d][t] = denoised[idx++];
+          }
+        }
+      }
+    }
+
+    final vocoderResult = await vocoderOrt
+        .run({'latent': await _toTensor(noisyLatent, latentShape)});
+    final wavRaw = await vocoderResult.values.first.asList();
+    final wav = wavRaw is List<double> ? wavRaw : _safeCast<double>(wavRaw);
+
+    return {'wav': wav, 'duration': scaledDur};
+  }
+
+  Map<String, dynamic> _sampleNoisyLatent(List<double> duration) {
+    final wavLenMax = duration.reduce(math.max) * sampleRate;
+    final wavLengths = duration.map((d) => (d * sampleRate).floor()).toList();
+    final chunkSize = baseChunkSize * chunkCompressFactor;
+    final latentLen = ((wavLenMax + chunkSize - 1) / chunkSize).floor();
+    final latentDim = ldim * chunkCompressFactor;
+
+    final random = math.Random();
+    final noisyLatent = List.generate(
+      duration.length,
+      (_) => List.generate(
+        latentDim,
+        (_) => List.generate(latentLen, (_) {
+          final u1 = math.max(1e-10, random.nextDouble());
+          final u2 = random.nextDouble();
+          return math.sqrt(-2.0 * math.log(u1)) * math.cos(2.0 * math.pi * u2);
+        }),
+      ),
+    );
+
+    final latentMask = _getLatentMask(wavLengths);
+
+    for (var b = 0; b < noisyLatent.length; b++) {
+      for (var d = 0; d < noisyLatent[b].length; d++) {
+        for (var t = 0; t < noisyLatent[b][d].length; t++) {
+          noisyLatent[b][d][t] *= latentMask[b][0][t];
+        }
+      }
+    }
+
+    return {'noisyLatent': noisyLatent, 'latentMask': latentMask};
+  }
+
+  List<List<List<double>>> _getLatentMask(List<int> wavLengths) {
+    final latentSize = baseChunkSize * chunkCompressFactor;
+    final latentLengths = wavLengths
+        .map((len) => ((len + latentSize - 1) / latentSize).floor())
+        .toList();
+    final maxLen = latentLengths.reduce(math.max);
+    return latentLengths
+        .map((len) => [List.generate(maxLen, (i) => i < len ? 1.0 : 0.0)])
+        .toList();
+  }
+
+  List<String> _chunkText(String text, {int maxLen = 300}) {
+    final paragraphs = text
+        .trim()
+        .split(RegExp(r'\n\s*\n+'))
+        .where((p) => p.trim().isNotEmpty)
+        .toList();
+
+    final chunks = <String>[];
+    for (var paragraph in paragraphs) {
+      paragraph = paragraph.trim();
+      if (paragraph.isEmpty) continue;
+
+      final sentences = paragraph.split(RegExp(
+          r'(?<!Mr\.|Mrs\.|Ms\.|Dr\.|Prof\.)(?<!\b[A-Z]\.)(?<=[.!?])\s+'));
+
+      var currentChunk = '';
+      for (final sentence in sentences) {
+        if (currentChunk.length + sentence.length + 1 <= maxLen) {
+          currentChunk += (currentChunk.isNotEmpty ? ' ' : '') + sentence;
+        } else {
+          if (currentChunk.isNotEmpty) chunks.add(currentChunk.trim());
+          currentChunk = sentence;
+        }
+      }
+      if (currentChunk.isNotEmpty) chunks.add(currentChunk.trim());
+    }
+
+    return chunks;
+  }
+
+  List<T> _safeCast<T>(dynamic raw) {
+    if (raw is List<T>) return raw;
+    if (raw is List) {
+      if (raw.isNotEmpty && raw.first is List) {
+        return _flattenList<T>(raw);
+      }
+      if (T == double) {
+        return raw
+            .map((e) => e is num ? e.toDouble() : double.parse(e.toString()))
+            .toList() as List<T>;
+      }
+      return raw.cast<T>();
+    }
+    throw Exception('Cannot convert $raw to List<$T>');
+  }
+
+  List<T> _flattenList<T>(dynamic list) {
+    if (list is List) {
+      return list.expand((e) => _flattenList<T>(e)).toList();
+    }
+    if (T == double && list is num) {
+      return [list.toDouble()] as List<T>;
+    }
+    return [list as T];
+  }
+
+  Future<OrtValue> _toTensor(dynamic array, List<int> dims) async {
+    final flat = _flattenList<double>(array);
+    return await OrtValue.fromList(Float32List.fromList(flat), dims);
+  }
+
+  Future<OrtValue> _scalarToTensor(List<double> array, List<int> dims) async {
+    return await OrtValue.fromList(Float32List.fromList(array), dims);
+  }
+
+  Future<OrtValue> _intToTensor(List<List<int>> array, List<int> dims) async {
+    final flat = array.expand((row) => row).toList();
+    return await OrtValue.fromList(Int64List.fromList(flat), dims);
+  }
+}
+
+Future<TextToSpeech> loadTextToSpeech(String onnxDir,
+    {bool useGpu = false}) async {
+  if (useGpu) throw Exception('GPU mode not supported yet');
+
+  logger.i('Loading TTS models from $onnxDir');
+
+  final cfgs = await _loadCfgs(onnxDir);
+  final sessions = await _loadOnnxAll(onnxDir);
+  final textProcessor =
+      await UnicodeProcessor.load('$onnxDir/unicode_indexer.json');
+
+  logger.i('TTS models loaded successfully');
+
+  return TextToSpeech(
+    cfgs,
+    textProcessor,
+    sessions['dpOrt']!,
+    sessions['textEncOrt']!,
+    sessions['vectorEstOrt']!,
+    sessions['vocoderOrt']!,
+  );
+}
+
+Future<Style> loadVoiceStyle(List<String> paths) async {
+  final bsz = paths.length;
+
+  final firstJson = jsonDecode(
+    paths[0].startsWith('assets/')
+        ? await rootBundle.loadString(paths[0])
+        : File(paths[0]).readAsStringSync(),
+  );
+
+  final ttlDims = List<int>.from(firstJson['style_ttl']['dims']);
+  final dpDims = List<int>.from(firstJson['style_dp']['dims']);
+
+  final ttlFlat = Float32List(bsz * ttlDims[1] * ttlDims[2]);
+  final dpFlat = Float32List(bsz * dpDims[1] * dpDims[2]);
+
+  for (var i = 0; i < bsz; i++) {
+    final json = jsonDecode(
+      paths[i].startsWith('assets/')
+          ? await rootBundle.loadString(paths[i])
+          : File(paths[i]).readAsStringSync(),
+    );
+
+    final ttlData = _flattenToDouble(json['style_ttl']['data']);
+    final dpData = _flattenToDouble(json['style_dp']['data']);
+
+    ttlFlat.setRange(i * ttlDims[1] * ttlDims[2],
+        (i + 1) * ttlDims[1] * ttlDims[2], ttlData);
+    dpFlat.setRange(
+        i * dpDims[1] * dpDims[2], (i + 1) * dpDims[1] * dpDims[2], dpData);
+  }
+
+  final ttlShape = [bsz, ttlDims[1], ttlDims[2]];
+  final dpShape = [bsz, dpDims[1], dpDims[2]];
+
+  return Style(
+    await OrtValue.fromList(ttlFlat, ttlShape),
+    await OrtValue.fromList(dpFlat, dpShape),
+    ttlShape,
+    dpShape,
+  );
+}
+
+Future<Map<String, dynamic>> _loadCfgs(String onnxDir) async {
+  final path = '$onnxDir/tts.json';
+  final json = jsonDecode(await rootBundle.loadString(path));
+  return json as Map<String, dynamic>;
+}
+
+Future<String> copyModelToFile(String path) async {
+  final byteData = await rootBundle.load(path);
+  final tempDir = await getApplicationCacheDirectory();
+  final modelPath = '${tempDir.path}/${path.split("/").last}';
+
+  final file = File(modelPath);
+  await file.writeAsBytes(byteData.buffer.asUint8List());
+  return modelPath;
+}
+
+Future<Map<String, OrtSession>> _loadOnnxAll(String dir) async {
+  final ort = OnnxRuntime();
+  final models = [
+    'duration_predictor',
+    'text_encoder',
+    'vector_estimator',
+    'vocoder'
+  ];
+
+  final sessions = await Future.wait(models.map((name) async {
+    final path = await copyModelToFile('$dir/$name.onnx');
+    logger.d('Loading $name.onnx');
+    return ort.createSessionFromAsset(path);
+  }));
+
+  return {
+    'dpOrt': sessions[0],
+    'textEncOrt': sessions[1],
+    'vectorEstOrt': sessions[2],
+    'vocoderOrt': sessions[3],
+  };
+}
+
+List<double> _flattenToDouble(dynamic list) {
+  if (list is List) return list.expand((e) => _flattenToDouble(e)).toList();
+  return [list is num ? list.toDouble() : double.parse(list.toString())];
+}
+
+void writeWavFile(String filename, List<double> audioData, int sampleRate) {
+  const numChannels = 1;
+  const bitsPerSample = 16;
+  final dataSize = audioData.length * 2;
+
+  final buffer = ByteData(44 + dataSize);
+  var offset = 0;
+
+  // RIFF header
+  for (var byte in [0x52, 0x49, 0x46, 0x46]) {
+    buffer.setUint8(offset++, byte);
+  }
+  buffer.setUint32(offset, 36 + dataSize, Endian.little);
+  offset += 4;
+
+  // WAVE
+  for (var byte in [0x57, 0x41, 0x56, 0x45]) {
+    buffer.setUint8(offset++, byte);
+  }
+
+  // fmt chunk
+  for (var byte in [0x66, 0x6D, 0x74, 0x20]) {
+    buffer.setUint8(offset++, byte);
+  }
+  buffer.setUint32(offset, 16, Endian.little);
+  offset += 4;
+  buffer.setUint16(offset, 1, Endian.little);
+  offset += 2;
+  buffer.setUint16(offset, numChannels, Endian.little);
+  offset += 2;
+  buffer.setUint32(offset, sampleRate, Endian.little);
+  offset += 4;
+  buffer.setUint32(offset, sampleRate * numChannels * 2, Endian.little);
+  offset += 4;
+  buffer.setUint16(offset, numChannels * 2, Endian.little);
+  offset += 2;
+  buffer.setUint16(offset, bitsPerSample, Endian.little);
+  offset += 2;
+
+  // data chunk
+  for (var byte in [0x64, 0x61, 0x74, 0x61]) {
+    buffer.setUint8(offset++, byte);
+  }
+  buffer.setUint32(offset, dataSize, Endian.little);
+  offset += 4;
+
+  // Write audio samples
+  for (var i = 0; i < audioData.length; i++) {
+    final sample = (audioData[i].clamp(-1.0, 1.0) * 32767).round();
+    buffer.setInt16(offset + i * 2, sample, Endian.little);
+  }
+
+  File(filename).writeAsBytesSync(buffer.buffer.asUint8List());
+}
--- a/flutter/lib/main.dart
+++ b/flutter/lib/main.dart
@@ -0,0 +1,391 @@
+import 'dart:io';
+import 'package:flutter/material.dart';
+import 'package:just_audio/just_audio.dart';
+import 'package:path_provider/path_provider.dart';
+import 'package:flutter_sdk/helper.dart';
+
+void main() {
+  runApp(const SupertonicApp());
+}
+
+class SupertonicApp extends StatelessWidget {
+  const SupertonicApp({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      title: 'Supertonic 2',
+      theme: ThemeData(
+        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
+        useMaterial3: true,
+      ),
+      home: const TTSPage(),
+    );
+  }
+}
+
+class TTSPage extends StatefulWidget {
+  const TTSPage({super.key});
+
+  @override
+  State<TTSPage> createState() => _TTSPageState();
+}
+
+class _TTSPageState extends State<TTSPage> {
+  final TextEditingController _textController = TextEditingController(
+    text: 'Hello, this is a text to speech example.',
+  );
+  final AudioPlayer _audioPlayer = AudioPlayer();
+
+  TextToSpeech? _textToSpeech;
+  Style? _style;
+  bool _isLoading = false;
+  bool _isGenerating = false;
+  String _status = 'Not initialized';
+  int _totalSteps = 5;
+  double _speed = 1.05;
+  String _selectedLang = 'en';
+  bool _isPlaying = false;
+  String? _lastGeneratedFilePath;
+
+  @override
+  void initState() {
+    super.initState();
+    _loadModels();
+    _setupAudioPlayerListeners();
+  }
+
+  void _setupAudioPlayerListeners() {
+    _audioPlayer.playerStateStream.listen((state) {
+      if (!mounted) return;
+
+      setState(() {
+        _isPlaying = state.playing;
+
+        if (state.processingState == ProcessingState.completed) {
+          _isPlaying = false;
+          _status = 'Ready';
+        } else if (state.processingState == ProcessingState.loading) {
+          _status = 'Loading audio...';
+        } else if (state.processingState == ProcessingState.buffering) {
+          _status = 'Buffering...';
+        }
+      });
+    });
+  }
+
+  Future<void> _loadModels() async {
+    setState(() {
+      _isLoading = true;
+      _status = 'Loading models...';
+    });
+
+    try {
+      _textToSpeech = await loadTextToSpeech('assets/onnx', useGpu: false);
+      _style = await loadVoiceStyle(['assets/voice_styles/M1.json']);
+
+      setState(() {
+        _isLoading = false;
+        _status = 'Ready';
+      });
+    } catch (e, stackTrace) {
+      logger.e('Error loading models', error: e, stackTrace: stackTrace);
+      setState(() {
+        _isLoading = false;
+        _status = 'Error: $e';
+      });
+    }
+  }
+
+  Future<void> _generateSpeech() async {
+    if (_textToSpeech == null || _style == null) {
+      setState(() => _status = 'Models not loaded yet');
+      return;
+    }
+
+    if (_textController.text.trim().isEmpty) {
+      setState(() => _status = 'Please enter some text');
+      return;
+    }
+
+    setState(() {
+      _isGenerating = true;
+      _status = 'Generating speech...';
+    });
+
+    List<double>? wav;
+    List<double>? duration;
+
+    // Step 1: Generate speech
+    try {
+      final result = await _textToSpeech!.call(
+        _textController.text,
+        _selectedLang,
+        _style!,
+        _totalSteps,
+        speed: _speed,
+      );
+
+      wav = result['wav'] is List<double>
+          ? result['wav']
+          : (result['wav'] as List).cast<double>();
+      duration = result['duration'] is List<double>
+          ? result['duration']
+          : (result['duration'] as List).cast<double>();
+    } catch (e) {
+      logger.e('Error generating speech', error: e);
+      setState(() {
+        _isGenerating = false;
+        _status = 'Error generating speech: $e';
+      });
+      return;
+    }
+
+    // Step 2: Save to file and play
+    try {
+      final tempDir = await getTemporaryDirectory();
+      final timestamp = DateTime.now().millisecondsSinceEpoch;
+      final outputPath = '${tempDir.path}/speech_$timestamp.wav';
+
+      writeWavFile(outputPath, wav!, _textToSpeech!.sampleRate);
+
+      final file = File(outputPath);
+      if (!file.existsSync()) {
+        throw Exception('Failed to create WAV file');
+      }
+
+      final absolutePath = file.absolute.path;
+
+      setState(() {
+        _isGenerating = false;
+        _status = 'Playing ${duration![0].toStringAsFixed(2)}s of audio...';
+        _lastGeneratedFilePath = absolutePath;
+      });
+
+      logger.i('Audio saved to $absolutePath');
+
+      final uri = Uri.file(absolutePath);
+      await _audioPlayer.setAudioSource(AudioSource.uri(uri));
+      await _audioPlayer.play();
+    } catch (e) {
+      logger.e('Error playing audio', error: e);
+      setState(() {
+        _isGenerating = false;
+        _status = 'Error playing audio: $e';
+      });
+    }
+  }
+
+  Future<void> _downloadFile() async {
+    if (_lastGeneratedFilePath == null) return;
+
+    try {
+      final sourceFile = File(_lastGeneratedFilePath!);
+      if (!sourceFile.existsSync()) {
+        setState(() => _status = 'Error: File no longer exists');
+        return;
+      }
+
+      final downloadsDir = await getDownloadsDirectory();
+      if (downloadsDir == null) {
+        setState(() => _status = 'Error: Could not access downloads folder');
+        return;
+      }
+
+      final timestamp = DateTime.now().millisecondsSinceEpoch;
+      final downloadPath = '${downloadsDir.path}/speech_$timestamp.wav';
+
+      await sourceFile.copy(downloadPath);
+      logger.i('File saved to $downloadPath');
+
+      setState(() => _status = 'File saved to: $downloadPath');
+    } catch (e) {
+      logger.e('Error downloading file', error: e);
+      setState(() => _status = 'Error downloading file: $e');
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
+        title: const Text('Supertonic 2'),
+      ),
+      body: Padding(
+        padding: const EdgeInsets.all(16.0),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.stretch,
+          children: [
+            // Status indicator
+            Card(
+              color: _isLoading || _isGenerating
+                  ? Colors.orange.shade100
+                  : _status.startsWith('Error')
+                      ? Colors.red.shade100
+                      : Colors.green.shade100,
+              child: Padding(
+                padding: const EdgeInsets.all(16.0),
+                child: Row(
+                  children: [
+                    if (_isLoading || _isGenerating)
+                      const SizedBox(
+                        width: 20,
+                        height: 20,
+                        child: CircularProgressIndicator(strokeWidth: 2),
+                      ),
+                    if (_isLoading || _isGenerating) const SizedBox(width: 12),
+                    Expanded(
+                      child:
+                          Text(_status, style: const TextStyle(fontSize: 16)),
+                    ),
+                  ],
+                ),
+              ),
+            ),
+            const SizedBox(height: 24),
+
+            // Text input
+            TextField(
+              controller: _textController,
+              maxLines: 5,
+              decoration: const InputDecoration(
+                labelText: 'Text to synthesize',
+                border: OutlineInputBorder(),
+                hintText: 'Enter the text you want to convert to speech...',
+              ),
+              enabled: !_isLoading && !_isGenerating,
+            ),
+            const SizedBox(height: 24),
+
+            // Parameters
+            Text('Parameters', style: Theme.of(context).textTheme.titleMedium),
+            const SizedBox(height: 12),
+
+            // Denoising steps slider
+            Row(
+              children: [
+                const Expanded(flex: 2, child: Text('Denoising Steps:')),
+                Expanded(
+                  flex: 3,
+                  child: Slider(
+                    value: _totalSteps.toDouble(),
+                    min: 1,
+                    max: 20,
+                    divisions: 19,
+                    label: _totalSteps.toString(),
+                    onChanged: _isLoading || _isGenerating
+                        ? null
+                        : (value) =>
+                            setState(() => _totalSteps = value.toInt()),
+                  ),
+                ),
+                SizedBox(
+                  width: 40,
+                  child:
+                      Text(_totalSteps.toString(), textAlign: TextAlign.right),
+                ),
+              ],
+            ),
+
+            // Speed slider
+            Row(
+              children: [
+                const Expanded(flex: 2, child: Text('Speed:')),
+                Expanded(
+                  flex: 3,
+                  child: Slider(
+                    value: _speed,
+                    min: 0.5,
+                    max: 2.0,
+                    divisions: 30,
+                    label: _speed.toStringAsFixed(2),
+                    onChanged: _isLoading || _isGenerating
+                        ? null
+                        : (value) => setState(() => _speed = value),
+                  ),
+                ),
+                SizedBox(
+                  width: 40,
+                  child: Text(_speed.toStringAsFixed(2),
+                      textAlign: TextAlign.right),
+                ),
+              ],
+            ),
+            const SizedBox(height: 12),
+
+            // Language selector
+            Row(
+              children: [
+                const Expanded(flex: 2, child: Text('Language:')),
+                Expanded(
+                  flex: 3,
+                  child: DropdownButton<String>(
+                    value: _selectedLang,
+                    isExpanded: true,
+                    items: const [
+                      DropdownMenuItem(value: 'en', child: Text('English')),
+                      DropdownMenuItem(value: 'ko', child: Text('한국어')),
+                      DropdownMenuItem(value: 'es', child: Text('Español')),
+                      DropdownMenuItem(value: 'pt', child: Text('Português')),
+                      DropdownMenuItem(value: 'fr', child: Text('Français')),
+                    ],
+                    onChanged: _isLoading || _isGenerating
+                        ? null
+                        : (value) => setState(() => _selectedLang = value!),
+                  ),
+                ),
+              ],
+            ),
+            const SizedBox(height: 24),
+
+            // Generate button
+            ElevatedButton.icon(
+              onPressed: _isLoading || _isGenerating
+                  ? null
+                  : _isPlaying
+                      ? () async {
+                          await _audioPlayer.stop();
+                          setState(() => _status = 'Ready');
+                        }
+                      : _generateSpeech,
+              icon: Icon(_isPlaying ? Icons.stop : Icons.play_arrow),
+              label: Text(
+                _isGenerating
+                    ? 'Generating...'
+                    : _isPlaying
+                        ? 'Stop Playback'
+                        : 'Generate & Play Speech',
+                style: const TextStyle(fontSize: 16),
+              ),
+              style: ElevatedButton.styleFrom(
+                padding: const EdgeInsets.symmetric(vertical: 16),
+              ),
+            ),
+
+            // Download button
+            if (_lastGeneratedFilePath != null) ...[
+              const SizedBox(height: 12),
+              OutlinedButton.icon(
+                onPressed: _isLoading || _isGenerating ? null : _downloadFile,
+                icon: const Icon(Icons.download),
+                label: const Text('Download WAV File',
+                    style: TextStyle(fontSize: 16)),
+                style: OutlinedButton.styleFrom(
+                  padding: const EdgeInsets.symmetric(vertical: 16),
+                ),
+              ),
+            ],
+          ],
+        ),
+      ),
+    );
+  }
+
+  @override
+  void dispose() {
+    _textController.dispose();
+    _audioPlayer.dispose();
+    super.dispose();
+  }
+}
--- a/flutter/macos/.gitignore
+++ b/flutter/macos/.gitignore
@@ -0,0 +1,7 @@
+# Flutter-related
+**/Flutter/ephemeral/
+**/Pods/
+
+# Xcode-related
+**/dgph
+**/xcuserdata/
--- a/flutter/macos/Flutter/Flutter-Debug.xcconfig
+++ b/flutter/macos/Flutter/Flutter-Debug.xcconfig
@@ -0,0 +1,2 @@
+#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
+#include "ephemeral/Flutter-Generated.xcconfig"
--- a/flutter/macos/Flutter/Flutter-Release.xcconfig
+++ b/flutter/macos/Flutter/Flutter-Release.xcconfig
@@ -0,0 +1,2 @@
+#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
+#include "ephemeral/Flutter-Generated.xcconfig"
--- a/flutter/macos/Flutter/GeneratedPluginRegistrant.swift
+++ b/flutter/macos/Flutter/GeneratedPluginRegistrant.swift
@@ -0,0 +1,16 @@
+//
+//  Generated file. Do not edit.
+//
+
+import FlutterMacOS
+import Foundation
+
+import audio_session
+import flutter_onnxruntime
+import just_audio
+
+func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
+  AudioSessionPlugin.register(with: registry.registrar(forPlugin: "AudioSessionPlugin"))
+  FlutterOnnxruntimePlugin.register(with: registry.registrar(forPlugin: "FlutterOnnxruntimePlugin"))
+  JustAudioPlugin.register(with: registry.registrar(forPlugin: "JustAudioPlugin"))
+}
--- a/flutter/macos/Podfile
+++ b/flutter/macos/Podfile
@@ -0,0 +1,45 @@
+platform :osx, '14.0'
+
+# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug' => :debug,
+  'Profile' => :release,
+  'Release' => :release,
+}
+
+def flutter_root
+  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'ephemeral', 'Flutter-Generated.xcconfig'), __FILE__)
+  unless File.exist?(generated_xcode_build_settings_path)
+    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure \"flutter pub get\" is executed first"
+  end
+
+  File.foreach(generated_xcode_build_settings_path) do |line|
+    matches = line.match(/FLUTTER_ROOT\=(.*)/)
+    return matches[1].strip if matches
+  end
+  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Flutter-Generated.xcconfig, then run \"flutter pub get\""
+end
+
+require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)
+
+flutter_macos_podfile_setup
+
+target 'Runner' do
+  use_frameworks! :linkage => :static
+
+  flutter_install_all_macos_pods File.dirname(File.realpath(__FILE__))
+  target 'RunnerTests' do
+    inherit! :search_paths
+  end
+end
+
+post_install do |installer|
+  installer.pods_project.targets.each do |target|
+    flutter_additional_macos_build_settings(target)
+    target.build_configurations.each do |config|
+      config.build_settings['MACOSX_DEPLOYMENT_TARGET'] = '14.0'
+    end
+  end
+end
--- a/flutter/macos/Podfile.lock
+++ b/flutter/macos/Podfile.lock
@@ -0,0 +1,54 @@
+PODS:
+  - audio_session (0.0.1):
+    - FlutterMacOS
+  - flutter_onnxruntime (0.0.1):
+    - FlutterMacOS
+    - onnxruntime-objc (= 1.21.0)
+  - FlutterMacOS (1.0.0)
+  - just_audio (0.0.1):
+    - Flutter
+    - FlutterMacOS
+  - objective_c (0.0.1):
+    - FlutterMacOS
+  - onnxruntime-c (1.21.0)
+  - onnxruntime-objc (1.21.0):
+    - onnxruntime-objc/Core (= 1.21.0)
+  - onnxruntime-objc/Core (1.21.0):
+    - onnxruntime-c (= 1.21.0)
+
+DEPENDENCIES:
+  - audio_session (from `Flutter/ephemeral/.symlinks/plugins/audio_session/macos`)
+  - flutter_onnxruntime (from `Flutter/ephemeral/.symlinks/plugins/flutter_onnxruntime/macos`)
+  - FlutterMacOS (from `Flutter/ephemeral`)
+  - just_audio (from `Flutter/ephemeral/.symlinks/plugins/just_audio/darwin`)
+  - objective_c (from `Flutter/ephemeral/.symlinks/plugins/objective_c/macos`)
+
+SPEC REPOS:
+  trunk:
+    - onnxruntime-c
+    - onnxruntime-objc
+
+EXTERNAL SOURCES:
+  audio_session:
+    :path: Flutter/ephemeral/.symlinks/plugins/audio_session/macos
+  flutter_onnxruntime:
+    :path: Flutter/ephemeral/.symlinks/plugins/flutter_onnxruntime/macos
+  FlutterMacOS:
+    :path: Flutter/ephemeral
+  just_audio:
+    :path: Flutter/ephemeral/.symlinks/plugins/just_audio/darwin
+  objective_c:
+    :path: Flutter/ephemeral/.symlinks/plugins/objective_c/macos
+
+SPEC CHECKSUMS:
+  audio_session: 728ae3823d914f809c485d390274861a24b0904e
+  flutter_onnxruntime: e6887abc1032d3e5c92f84b912ad42c33e9ce1c9
+  FlutterMacOS: d0db08ddef1a9af05a5ec4b724367152bb0500b1
+  just_audio: a42c63806f16995daf5b219ae1d679deb76e6a79
+  objective_c: e5f8194456e8fc943e034d1af00510a1bc29c067
+  onnxruntime-c: ac65025f01072d25d7d394a2b43ac30d9397b260
+  onnxruntime-objc: 5fa03134356d47b642ec85b1023d9907a123d201
+
+PODFILE CHECKSUM: 6b8e7008b8bf73cd361b3ffb8aa3768b71e74409
+
+COCOAPODS: 1.16.2
--- a/flutter/macos/Runner/AppDelegate.swift
+++ b/flutter/macos/Runner/AppDelegate.swift
@@ -0,0 +1,13 @@
+import Cocoa
+import FlutterMacOS
+
+@main
+class AppDelegate: FlutterAppDelegate {
+  override func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
+    return true
+  }
+
+  override func applicationSupportsSecureRestorableState(_ app: NSApplication) -> Bool {
+    return true
+  }
+}
--- a/flutter/macos/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
+++ b/flutter/macos/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,68 @@
+{
+  "images" : [
+    {
+      "size" : "16x16",
+      "idiom" : "mac",
+      "filename" : "app_icon_16.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "16x16",
+      "idiom" : "mac",
+      "filename" : "app_icon_32.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "32x32",
+      "idiom" : "mac",
+      "filename" : "app_icon_32.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "32x32",
+      "idiom" : "mac",
+      "filename" : "app_icon_64.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "128x128",
+      "idiom" : "mac",
+      "filename" : "app_icon_128.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "128x128",
+      "idiom" : "mac",
+      "filename" : "app_icon_256.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "256x256",
+      "idiom" : "mac",
+      "filename" : "app_icon_256.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "256x256",
+      "idiom" : "mac",
+      "filename" : "app_icon_512.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "512x512",
+      "idiom" : "mac",
+      "filename" : "app_icon_512.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "512x512",
+      "idiom" : "mac",
+      "filename" : "app_icon_1024.png",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
--- a/flutter/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png
+++ b/flutter/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png
--- a/flutter/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_128.png
+++ b/flutter/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_128.png
--- a/flutter/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_16.png
+++ b/flutter/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_16.png
--- a/flutter/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_256.png
+++ b/flutter/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_256.png
--- a/flutter/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_32.png
+++ b/flutter/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_32.png
--- a/flutter/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_512.png
+++ b/flutter/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_512.png
--- a/flutter/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_64.png
+++ b/flutter/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_64.png
--- a/flutter/macos/Runner/Base.lproj/MainMenu.xib
+++ b/flutter/macos/Runner/Base.lproj/MainMenu.xib
@@ -0,0 +1,343 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="14490.70" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
+    <dependencies>
+        <deployment identifier="macosx"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="14490.70"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <objects>
+        <customObject id="-2" userLabel="File's Owner" customClass="NSApplication">
+            <connections>
+                <outlet property="delegate" destination="Voe-Tx-rLC" id="GzC-gU-4Uq"/>
+            </connections>
+        </customObject>
+        <customObject id="-1" userLabel="First Responder" customClass="FirstResponder"/>
+        <customObject id="-3" userLabel="Application" customClass="NSObject"/>
+        <customObject id="Voe-Tx-rLC" customClass="AppDelegate" customModule="Runner" customModuleProvider="target">
+            <connections>
+                <outlet property="applicationMenu" destination="uQy-DD-JDr" id="XBo-yE-nKs"/>
+                <outlet property="mainFlutterWindow" destination="QvC-M9-y7g" id="gIp-Ho-8D9"/>
+            </connections>
+        </customObject>
+        <customObject id="YLy-65-1bz" customClass="NSFontManager"/>
+        <menu title="Main Menu" systemMenu="main" id="AYu-sK-qS6">
+            <items>
+                <menuItem title="APP_NAME" id="1Xt-HY-uBw">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="APP_NAME" systemMenu="apple" id="uQy-DD-JDr">
+                        <items>
+                            <menuItem title="About APP_NAME" id="5kV-Vb-QxS">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="orderFrontStandardAboutPanel:" target="-1" id="Exp-CZ-Vem"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="VOq-y0-SEH"/>
+                            <menuItem title="Preferences…" keyEquivalent="," id="BOF-NM-1cW"/>
+                            <menuItem isSeparatorItem="YES" id="wFC-TO-SCJ"/>
+                            <menuItem title="Services" id="NMo-om-nkz">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Services" systemMenu="services" id="hz9-B4-Xy5"/>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="4je-JR-u6R"/>
+                            <menuItem title="Hide APP_NAME" keyEquivalent="h" id="Olw-nP-bQN">
+                                <connections>
+                                    <action selector="hide:" target="-1" id="PnN-Uc-m68"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Hide Others" keyEquivalent="h" id="Vdr-fp-XzO">
+                                <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
+                                <connections>
+                                    <action selector="hideOtherApplications:" target="-1" id="VT4-aY-XCT"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Show All" id="Kd2-mp-pUS">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="unhideAllApplications:" target="-1" id="Dhg-Le-xox"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="kCx-OE-vgT"/>
+                            <menuItem title="Quit APP_NAME" keyEquivalent="q" id="4sb-4s-VLi">
+                                <connections>
+                                    <action selector="terminate:" target="-1" id="Te7-pn-YzF"/>
+                                </connections>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="Edit" id="5QF-Oa-p0T">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="Edit" id="W48-6f-4Dl">
+                        <items>
+                            <menuItem title="Undo" keyEquivalent="z" id="dRJ-4n-Yzg">
+                                <connections>
+                                    <action selector="undo:" target="-1" id="M6e-cu-g7V"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Redo" keyEquivalent="Z" id="6dh-zS-Vam">
+                                <connections>
+                                    <action selector="redo:" target="-1" id="oIA-Rs-6OD"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="WRV-NI-Exz"/>
+                            <menuItem title="Cut" keyEquivalent="x" id="uRl-iY-unG">
+                                <connections>
+                                    <action selector="cut:" target="-1" id="YJe-68-I9s"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Copy" keyEquivalent="c" id="x3v-GG-iWU">
+                                <connections>
+                                    <action selector="copy:" target="-1" id="G1f-GL-Joy"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Paste" keyEquivalent="v" id="gVA-U4-sdL">
+                                <connections>
+                                    <action selector="paste:" target="-1" id="UvS-8e-Qdg"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Paste and Match Style" keyEquivalent="V" id="WeT-3V-zwk">
+                                <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
+                                <connections>
+                                    <action selector="pasteAsPlainText:" target="-1" id="cEh-KX-wJQ"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Delete" id="pa3-QI-u2k">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="delete:" target="-1" id="0Mk-Ml-PaM"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Select All" keyEquivalent="a" id="Ruw-6m-B2m">
+                                <connections>
+                                    <action selector="selectAll:" target="-1" id="VNm-Mi-diN"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="uyl-h8-XO2"/>
+                            <menuItem title="Find" id="4EN-yA-p0u">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Find" id="1b7-l0-nxx">
+                                    <items>
+                                        <menuItem title="Find…" tag="1" keyEquivalent="f" id="Xz5-n4-O0W">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="cD7-Qs-BN4"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Find and Replace…" tag="12" keyEquivalent="f" id="YEy-JH-Tfz">
+                                            <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="WD3-Gg-5AJ"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Find Next" tag="2" keyEquivalent="g" id="q09-fT-Sye">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="NDo-RZ-v9R"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Find Previous" tag="3" keyEquivalent="G" id="OwM-mh-QMV">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="HOh-sY-3ay"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Use Selection for Find" tag="7" keyEquivalent="e" id="buJ-ug-pKt">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="U76-nv-p5D"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Jump to Selection" keyEquivalent="j" id="S0p-oC-mLd">
+                                            <connections>
+                                                <action selector="centerSelectionInVisibleArea:" target="-1" id="IOG-6D-g5B"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Spelling and Grammar" id="Dv1-io-Yv7">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Spelling" id="3IN-sU-3Bg">
+                                    <items>
+                                        <menuItem title="Show Spelling and Grammar" keyEquivalent=":" id="HFo-cy-zxI">
+                                            <connections>
+                                                <action selector="showGuessPanel:" target="-1" id="vFj-Ks-hy3"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Check Document Now" keyEquivalent=";" id="hz2-CU-CR7">
+                                            <connections>
+                                                <action selector="checkSpelling:" target="-1" id="fz7-VC-reM"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem isSeparatorItem="YES" id="bNw-od-mp5"/>
+                                        <menuItem title="Check Spelling While Typing" id="rbD-Rh-wIN">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleContinuousSpellChecking:" target="-1" id="7w6-Qz-0kB"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Check Grammar With Spelling" id="mK6-2p-4JG">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleGrammarChecking:" target="-1" id="muD-Qn-j4w"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Correct Spelling Automatically" id="78Y-hA-62v">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticSpellingCorrection:" target="-1" id="2lM-Qi-WAP"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Substitutions" id="9ic-FL-obx">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Substitutions" id="FeM-D8-WVr">
+                                    <items>
+                                        <menuItem title="Show Substitutions" id="z6F-FW-3nz">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="orderFrontSubstitutionsPanel:" target="-1" id="oku-mr-iSq"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem isSeparatorItem="YES" id="gPx-C9-uUO"/>
+                                        <menuItem title="Smart Copy/Paste" id="9yt-4B-nSM">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleSmartInsertDelete:" target="-1" id="3IJ-Se-DZD"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Smart Quotes" id="hQb-2v-fYv">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticQuoteSubstitution:" target="-1" id="ptq-xd-QOA"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Smart Dashes" id="rgM-f4-ycn">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticDashSubstitution:" target="-1" id="oCt-pO-9gS"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Smart Links" id="cwL-P1-jid">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticLinkDetection:" target="-1" id="Gip-E3-Fov"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Data Detectors" id="tRr-pd-1PS">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticDataDetection:" target="-1" id="R1I-Nq-Kbl"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Text Replacement" id="HFQ-gK-NFA">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticTextReplacement:" target="-1" id="DvP-Fe-Py6"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Transformations" id="2oI-Rn-ZJC">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Transformations" id="c8a-y6-VQd">
+                                    <items>
+                                        <menuItem title="Make Upper Case" id="vmV-6d-7jI">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="uppercaseWord:" target="-1" id="sPh-Tk-edu"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Make Lower Case" id="d9M-CD-aMd">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="lowercaseWord:" target="-1" id="iUZ-b5-hil"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Capitalize" id="UEZ-Bs-lqG">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="capitalizeWord:" target="-1" id="26H-TL-nsh"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Speech" id="xrE-MZ-jX0">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Speech" id="3rS-ZA-NoH">
+                                    <items>
+                                        <menuItem title="Start Speaking" id="Ynk-f8-cLZ">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="startSpeaking:" target="-1" id="654-Ng-kyl"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Stop Speaking" id="Oyz-dy-DGm">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="stopSpeaking:" target="-1" id="dX8-6p-jy9"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="View" id="H8h-7b-M4v">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="View" id="HyV-fh-RgO">
+                        <items>
+                            <menuItem title="Enter Full Screen" keyEquivalent="f" id="4J7-dP-txa">
+                                <modifierMask key="keyEquivalentModifierMask" control="YES" command="YES"/>
+                                <connections>
+                                    <action selector="toggleFullScreen:" target="-1" id="dU3-MA-1Rq"/>
+                                </connections>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="Window" id="aUF-d1-5bR">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="Window" systemMenu="window" id="Td7-aD-5lo">
+                        <items>
+                            <menuItem title="Minimize" keyEquivalent="m" id="OY7-WF-poV">
+                                <connections>
+                                    <action selector="performMiniaturize:" target="-1" id="VwT-WD-YPe"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Zoom" id="R4o-n2-Eq4">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="performZoom:" target="-1" id="DIl-cC-cCs"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="eu3-7i-yIM"/>
+                            <menuItem title="Bring All to Front" id="LE2-aR-0XJ">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="arrangeInFront:" target="-1" id="DRN-fu-gQh"/>
+                                </connections>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="Help" id="EPT-qC-fAb">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="Help" systemMenu="help" id="rJ0-wn-3NY"/>
+                </menuItem>
+            </items>
+            <point key="canvasLocation" x="142" y="-258"/>
+        </menu>
+        <window title="APP_NAME" allowsToolTipsWhenApplicationIsInactive="NO" autorecalculatesKeyViewLoop="NO" releasedWhenClosed="NO" animationBehavior="default" id="QvC-M9-y7g" customClass="MainFlutterWindow" customModule="Runner" customModuleProvider="target">
+            <windowStyleMask key="styleMask" titled="YES" closable="YES" miniaturizable="YES" resizable="YES"/>
+            <rect key="contentRect" x="335" y="390" width="800" height="600"/>
+            <rect key="screenRect" x="0.0" y="0.0" width="2560" height="1577"/>
+            <view key="contentView" wantsLayer="YES" id="EiT-Mj-1SZ">
+                <rect key="frame" x="0.0" y="0.0" width="800" height="600"/>
+                <autoresizingMask key="autoresizingMask"/>
+            </view>
+        </window>
+    </objects>
+</document>
--- a/flutter/macos/Runner/Configs/AppInfo.xcconfig
+++ b/flutter/macos/Runner/Configs/AppInfo.xcconfig
@@ -0,0 +1,14 @@
+// Application-level settings for the Runner target.
+//
+// This may be replaced with something auto-generated from metadata (e.g., pubspec.yaml) in the
+// future. If not, the values below would default to using the project name when this becomes a
+// 'flutter create' template.
+
+// The application's name. By default this is also the title of the Flutter window.
+PRODUCT_NAME = flutter_sdk
+
+// The application's bundle identifier
+PRODUCT_BUNDLE_IDENTIFIER = com.example.flutterSdk
+
+// The copyright displayed in application information
+PRODUCT_COPYRIGHT = Copyright © 2025 com.example. All rights reserved.
--- a/flutter/macos/Runner/Configs/Debug.xcconfig
+++ b/flutter/macos/Runner/Configs/Debug.xcconfig
@@ -0,0 +1,2 @@
+#include "../../Flutter/Flutter-Debug.xcconfig"
+#include "Warnings.xcconfig"
--- a/flutter/macos/Runner/Configs/Release.xcconfig
+++ b/flutter/macos/Runner/Configs/Release.xcconfig
@@ -0,0 +1,2 @@
+#include "../../Flutter/Flutter-Release.xcconfig"
+#include "Warnings.xcconfig"
--- a/flutter/macos/Runner/Configs/Warnings.xcconfig
+++ b/flutter/macos/Runner/Configs/Warnings.xcconfig
@@ -0,0 +1,13 @@
+WARNING_CFLAGS = -Wall -Wconditional-uninitialized -Wnullable-to-nonnull-conversion -Wmissing-method-return-type -Woverlength-strings
+GCC_WARN_UNDECLARED_SELECTOR = YES
+CLANG_UNDEFINED_BEHAVIOR_SANITIZER_NULLABILITY = YES
+CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE
+CLANG_WARN__DUPLICATE_METHOD_MATCH = YES
+CLANG_WARN_PRAGMA_PACK = YES
+CLANG_WARN_STRICT_PROTOTYPES = YES
+CLANG_WARN_COMMA = YES
+GCC_WARN_STRICT_SELECTOR_MATCH = YES
+CLANG_WARN_OBJC_REPEATED_USE_OF_WEAK = YES
+CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES
+GCC_WARN_SHADOW = YES
+CLANG_WARN_UNREACHABLE_CODE = YES
--- a/flutter/macos/Runner/DebugProfile.entitlements
+++ b/flutter/macos/Runner/DebugProfile.entitlements
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.security.app-sandbox</key>
+	<true/>
+	<key>com.apple.security.cs.allow-jit</key>
+	<true/>
+	<key>com.apple.security.network.server</key>
+	<true/>
+</dict>
+</plist>
--- a/flutter/macos/Runner/Info.plist
+++ b/flutter/macos/Runner/Info.plist
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIconFile</key>
+	<string></string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>$(FLUTTER_BUILD_NAME)</string>
+	<key>CFBundleVersion</key>
+	<string>$(FLUTTER_BUILD_NUMBER)</string>
+	<key>LSMinimumSystemVersion</key>
+	<string>$(MACOSX_DEPLOYMENT_TARGET)</string>
+	<key>NSHumanReadableCopyright</key>
+	<string>$(PRODUCT_COPYRIGHT)</string>
+	<key>NSMainNibFile</key>
+	<string>MainMenu</string>
+	<key>NSPrincipalClass</key>
+	<string>NSApplication</string>
+</dict>
+</plist>
--- a/flutter/macos/Runner/MainFlutterWindow.swift
+++ b/flutter/macos/Runner/MainFlutterWindow.swift
@@ -0,0 +1,15 @@
+import Cocoa
+import FlutterMacOS
+
+class MainFlutterWindow: NSWindow {
+  override func awakeFromNib() {
+    let flutterViewController = FlutterViewController()
+    let windowFrame = self.frame
+    self.contentViewController = flutterViewController
+    self.setFrame(windowFrame, display: true)
+
+    RegisterGeneratedPlugins(registry: flutterViewController)
+
+    super.awakeFromNib()
+  }
+}
--- a/flutter/macos/Runner/Release.entitlements
+++ b/flutter/macos/Runner/Release.entitlements
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.security.app-sandbox</key>
+	<true/>
+</dict>
+</plist>
--- a/flutter/macos/RunnerTests/RunnerTests.swift
+++ b/flutter/macos/RunnerTests/RunnerTests.swift
@@ -0,0 +1,12 @@
+import Cocoa
+import FlutterMacOS
+import XCTest
+
+class RunnerTests: XCTestCase {
+
+  func testExample() {
+    // If you add code to the Runner application, consider adding tests here.
+    // See https://developer.apple.com/documentation/xctest for more information about using XCTest.
+  }
+
+}
--- a/flutter/pubspec.lock
+++ b/flutter/pubspec.lock
@@ -0,0 +1,418 @@
+# Generated by pub
+# See https://dart.dev/tools/pub/glossary#lockfile
+packages:
+  args:
+    dependency: "direct main"
+    description:
+      name: args
+      sha256: d0481093c50b1da8910eb0bb301626d4d8eb7284aa739614d2b394ee09e3ea04
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.7.0"
+  async:
+    dependency: transitive
+    description:
+      name: async
+      sha256: "758e6d74e971c3e5aceb4110bfd6698efc7f501675bcfe0c775459a8140750eb"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.13.0"
+  audio_session:
+    dependency: transitive
+    description:
+      name: audio_session
+      sha256: "8f96a7fecbb718cb093070f868b4cdcb8a9b1053dce342ff8ab2fde10eb9afb7"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.2.2"
+  boolean_selector:
+    dependency: transitive
+    description:
+      name: boolean_selector
+      sha256: "8aab1771e1243a5063b8b0ff68042d67334e3feab9e95b9490f9a6ebf73b42ea"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.2"
+  characters:
+    dependency: transitive
+    description:
+      name: characters
+      sha256: f71061c654a3380576a52b451dd5532377954cf9dbd272a78fc8479606670803
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.4.0"
+  clock:
+    dependency: transitive
+    description:
+      name: clock
+      sha256: fddb70d9b5277016c77a80201021d40a2247104d9f4aa7bab7157b7e3f05b84b
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.2"
+  collection:
+    dependency: transitive
+    description:
+      name: collection
+      sha256: "2f5709ae4d3d59dd8f7cd309b4e023046b57d8a6c82130785d2b0e5868084e76"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.19.1"
+  crypto:
+    dependency: transitive
+    description:
+      name: crypto
+      sha256: c8ea0233063ba03258fbcf2ca4d6dadfefe14f02fab57702265467a19f27fadf
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.7"
+  fake_async:
+    dependency: transitive
+    description:
+      name: fake_async
+      sha256: "5368f224a74523e8d2e7399ea1638b37aecfca824a3cc4dfdf77bf1fa905ac44"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.3"
+  ffi:
+    dependency: transitive
+    description:
+      name: ffi
+      sha256: "289279317b4b16eb2bb7e271abccd4bf84ec9bdcbe999e278a94b804f5630418"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.4"
+  fixnum:
+    dependency: transitive
+    description:
+      name: fixnum
+      sha256: b6dc7065e46c974bc7c5f143080a6764ec7a4be6da1285ececdc37be96de53be
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.1"
+  flutter:
+    dependency: "direct main"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  flutter_lints:
+    dependency: "direct dev"
+    description:
+      name: flutter_lints
+      sha256: "5398f14efa795ffb7a33e9b6a08798b26a180edac4ad7db3f231e40f82ce11e1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.0.0"
+  flutter_onnxruntime:
+    dependency: "direct main"
+    description:
+      name: flutter_onnxruntime
+      sha256: "55842e69293ec52c07f3065049ff7641e94e8a6cca3f659a913d5401a3994424"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.6.0"
+  flutter_test:
+    dependency: "direct dev"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  flutter_web_plugins:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  just_audio:
+    dependency: "direct main"
+    description:
+      name: just_audio
+      sha256: "9694e4734f515f2a052493d1d7e0d6de219ee0427c7c29492e246ff32a219908"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.10.5"
+  just_audio_platform_interface:
+    dependency: transitive
+    description:
+      name: just_audio_platform_interface
+      sha256: "2532c8d6702528824445921c5ff10548b518b13f808c2e34c2fd54793b999a6a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.6.0"
+  just_audio_web:
+    dependency: transitive
+    description:
+      name: just_audio_web
+      sha256: "6ba8a2a7e87d57d32f0f7b42856ade3d6a9fbe0f1a11fabae0a4f00bb73f0663"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.4.16"
+  leak_tracker:
+    dependency: transitive
+    description:
+      name: leak_tracker
+      sha256: "33e2e26bdd85a0112ec15400c8cbffea70d0f9c3407491f672a2fad47915e2de"
+      url: "https://pub.dev"
+    source: hosted
+    version: "11.0.2"
+  leak_tracker_flutter_testing:
+    dependency: transitive
+    description:
+      name: leak_tracker_flutter_testing
+      sha256: "1dbc140bb5a23c75ea9c4811222756104fbcd1a27173f0c34ca01e16bea473c1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.10"
+  leak_tracker_testing:
+    dependency: transitive
+    description:
+      name: leak_tracker_testing
+      sha256: "8d5a2d49f4a66b49744b23b018848400d23e54caf9463f4eb20df3eb8acb2eb1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.2"
+  lints:
+    dependency: transitive
+    description:
+      name: lints
+      sha256: c35bb79562d980e9a453fc715854e1ed39e24e7d0297a880ef54e17f9874a9d7
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.1.1"
+  logger:
+    dependency: "direct main"
+    description:
+      name: logger
+      sha256: a7967e31b703831a893bbc3c3dd11db08126fe5f369b5c648a36f821979f5be3
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.6.2"
+  matcher:
+    dependency: transitive
+    description:
+      name: matcher
+      sha256: dc58c723c3c24bf8d3e2d3ad3f2f9d7bd9cf43ec6feaa64181775e60190153f2
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.12.17"
+  material_color_utilities:
+    dependency: transitive
+    description:
+      name: material_color_utilities
+      sha256: f7142bb1154231d7ea5f96bc7bde4bda2a0945d2806bb11670e30b850d56bdec
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.11.1"
+  meta:
+    dependency: transitive
+    description:
+      name: meta
+      sha256: "23f08335362185a5ea2ad3a4e597f1375e78bce8a040df5c600c8d3552ef2394"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.17.0"
+  objective_c:
+    dependency: transitive
+    description:
+      name: objective_c
+      sha256: "1f81ed9e41909d44162d7ec8663b2c647c202317cc0b56d3d56f6a13146a0b64"
+      url: "https://pub.dev"
+    source: hosted
+    version: "9.1.0"
+  path:
+    dependency: transitive
+    description:
+      name: path
+      sha256: "75cca69d1490965be98c73ceaea117e8a04dd21217b37b292c9ddbec0d955bc5"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.9.1"
+  path_provider:
+    dependency: "direct main"
+    description:
+      name: path_provider
+      sha256: "50c5dd5b6e1aaf6fb3a78b33f6aa3afca52bf903a8a5298f53101fdaee55bbcd"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.5"
+  path_provider_android:
+    dependency: transitive
+    description:
+      name: path_provider_android
+      sha256: f2c65e21139ce2c3dad46922be8272bb5963516045659e71bb16e151c93b580e
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.22"
+  path_provider_foundation:
+    dependency: transitive
+    description:
+      name: path_provider_foundation
+      sha256: "6192e477f34018ef1ea790c56fffc7302e3bc3efede9e798b934c252c8c105ba"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.5.0"
+  path_provider_linux:
+    dependency: transitive
+    description:
+      name: path_provider_linux
+      sha256: f7a1fe3a634fe7734c8d3f2766ad746ae2a2884abe22e241a8b301bf5cac3279
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.1"
+  path_provider_platform_interface:
+    dependency: transitive
+    description:
+      name: path_provider_platform_interface
+      sha256: "88f5779f72ba699763fa3a3b06aa4bf6de76c8e5de842cf6f29e2e06476c2334"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.2"
+  path_provider_windows:
+    dependency: transitive
+    description:
+      name: path_provider_windows
+      sha256: bd6f00dbd873bfb70d0761682da2b3a2c2fccc2b9e84c495821639601d81afe7
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.0"
+  platform:
+    dependency: transitive
+    description:
+      name: platform
+      sha256: "5d6b1b0036a5f331ebc77c850ebc8506cbc1e9416c27e59b439f917a902a4984"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.6"
+  plugin_platform_interface:
+    dependency: transitive
+    description:
+      name: plugin_platform_interface
+      sha256: "4820fbfdb9478b1ebae27888254d445073732dae3d6ea81f0b7e06d5dedc3f02"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.8"
+  pub_semver:
+    dependency: transitive
+    description:
+      name: pub_semver
+      sha256: "5bfcf68ca79ef689f8990d1160781b4bad40a3bd5e5218ad4076ddb7f4081585"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.0"
+  rxdart:
+    dependency: transitive
+    description:
+      name: rxdart
+      sha256: "5c3004a4a8dbb94bd4bf5412a4def4acdaa12e12f269737a5751369e12d1a962"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.28.0"
+  sky_engine:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  source_span:
+    dependency: transitive
+    description:
+      name: source_span
+      sha256: "254ee5351d6cb365c859e20ee823c3bb479bf4a293c22d17a9f1bf144ce86f7c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.10.1"
+  stack_trace:
+    dependency: transitive
+    description:
+      name: stack_trace
+      sha256: "8b27215b45d22309b5cddda1aa2b19bdfec9df0e765f2de506401c071d38d1b1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.12.1"
+  stream_channel:
+    dependency: transitive
+    description:
+      name: stream_channel
+      sha256: "969e04c80b8bcdf826f8f16579c7b14d780458bd97f56d107d3950fdbeef059d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.4"
+  string_scanner:
+    dependency: transitive
+    description:
+      name: string_scanner
+      sha256: "921cd31725b72fe181906c6a94d987c78e3b98c2e205b397ea399d4054872b43"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.4.1"
+  synchronized:
+    dependency: transitive
+    description:
+      name: synchronized
+      sha256: c254ade258ec8282947a0acbbc90b9575b4f19673533ee46f2f6e9b3aeefd7c0
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.4.0"
+  term_glyph:
+    dependency: transitive
+    description:
+      name: term_glyph
+      sha256: "7f554798625ea768a7518313e58f83891c7f5024f88e46e7182a4558850a4b8e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.2"
+  test_api:
+    dependency: transitive
+    description:
+      name: test_api
+      sha256: ab2726c1a94d3176a45960b6234466ec367179b87dd74f1611adb1f3b5fb9d55
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.7.7"
+  typed_data:
+    dependency: transitive
+    description:
+      name: typed_data
+      sha256: f9049c039ebfeb4cf7a7104a675823cd72dba8297f264b6637062516699fa006
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.4.0"
+  uuid:
+    dependency: transitive
+    description:
+      name: uuid
+      sha256: a11b666489b1954e01d992f3d601b1804a33937b5a8fe677bd26b8a9f96f96e8
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.5.2"
+  vector_math:
+    dependency: transitive
+    description:
+      name: vector_math
+      sha256: d530bd74fea330e6e364cda7a85019c434070188383e1cd8d9777ee586914c5b
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.0"
+  vm_service:
+    dependency: transitive
+    description:
+      name: vm_service
+      sha256: "45caa6c5917fa127b5dbcfbd1fa60b14e583afdc08bfc96dda38886ca252eb60"
+      url: "https://pub.dev"
+    source: hosted
+    version: "15.0.2"
+  web:
+    dependency: transitive
+    description:
+      name: web
+      sha256: "868d88a33d8a87b18ffc05f9f030ba328ffefba92d6c127917a2ba740f9cfe4a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.1"
+  xdg_directories:
+    dependency: transitive
+    description:
+      name: xdg_directories
+      sha256: "7a3f37b05d989967cdddcbb571f1ea834867ae2faa29725fd085180e0883aa15"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.0"
+sdks:
+  dart: ">=3.9.0 <4.0.0"
+  flutter: ">=3.35.0"
--- a/flutter/pubspec.yaml
+++ b/flutter/pubspec.yaml
@@ -0,0 +1,26 @@
+name: flutter_sdk
+description: Supertonic Flutter SDK TTS Example
+version: 1.0.0
+
+environment:
+  sdk: ^3.5.0
+
+dependencies:
+  flutter:
+    sdk: flutter
+  flutter_onnxruntime: ^1.6.0
+  args: ^2.4.0
+  path_provider: ^2.1.1
+  just_audio: ^0.10.5
+  logger: ^2.0.2
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+  flutter_lints: ^5.0.0
+
+flutter:
+  assets:
+    - assets/onnx/
+    - assets/voice_styles/
+  uses-material-design: true