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955
java/Helper.java
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955
java/Helper.java
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import ai.onnxruntime.*;
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import com.fasterxml.jackson.databind.JsonNode;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import javax.sound.sampled.AudioFileFormat;
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import javax.sound.sampled.AudioFormat;
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import javax.sound.sampled.AudioInputStream;
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import javax.sound.sampled.AudioSystem;
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import java.io.*;
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import java.nio.ByteBuffer;
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import java.nio.ByteOrder;
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import java.nio.FloatBuffer;
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import java.nio.LongBuffer;
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import java.nio.file.Files;
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import java.nio.file.Paths;
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import java.text.Normalizer;
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import java.util.*;
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import java.util.regex.Pattern;
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import java.util.regex.Matcher;
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/**
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* Available languages for multilingual TTS
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*/
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class Languages {
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public static final List<String> AVAILABLE = Arrays.asList("en", "ko", "es", "pt", "fr");
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public static boolean isValid(String lang) {
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return AVAILABLE.contains(lang);
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}
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}
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/**
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* Configuration classes
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*/
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class Config {
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static class AEConfig {
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int sampleRate;
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int baseChunkSize;
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}
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static class TTLConfig {
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int chunkCompressFactor;
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int latentDim;
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}
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AEConfig ae;
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TTLConfig ttl;
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}
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/**
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* Voice Style Data from JSON
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*/
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class VoiceStyleData {
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static class StyleData {
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float[][][] data;
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long[] dims;
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String type;
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}
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StyleData styleTtl;
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StyleData styleDp;
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}
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/**
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* Unicode text processor
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*/
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class UnicodeProcessor {
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private long[] indexer;
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public UnicodeProcessor(String unicodeIndexerJsonPath) throws IOException {
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this.indexer = Helper.loadJsonLongArray(unicodeIndexerJsonPath);
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}
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private static String removeEmojis(String text) {
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StringBuilder result = new StringBuilder();
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for (int i = 0; i < text.length(); i++) {
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int codePoint;
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if (Character.isHighSurrogate(text.charAt(i)) && i + 1 < text.length() && Character.isLowSurrogate(text.charAt(i + 1))) {
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codePoint = Character.codePointAt(text, i);
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i++; // Skip the low surrogate
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} else {
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codePoint = text.charAt(i);
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}
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// Check if code point is in emoji ranges
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boolean isEmoji = (codePoint >= 0x1F600 && codePoint <= 0x1F64F) ||
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(codePoint >= 0x1F300 && codePoint <= 0x1F5FF) ||
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(codePoint >= 0x1F680 && codePoint <= 0x1F6FF) ||
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(codePoint >= 0x1F700 && codePoint <= 0x1F77F) ||
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(codePoint >= 0x1F780 && codePoint <= 0x1F7FF) ||
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(codePoint >= 0x1F800 && codePoint <= 0x1F8FF) ||
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(codePoint >= 0x1F900 && codePoint <= 0x1F9FF) ||
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(codePoint >= 0x1FA00 && codePoint <= 0x1FA6F) ||
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(codePoint >= 0x1FA70 && codePoint <= 0x1FAFF) ||
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(codePoint >= 0x2600 && codePoint <= 0x26FF) ||
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(codePoint >= 0x2700 && codePoint <= 0x27BF) ||
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(codePoint >= 0x1F1E6 && codePoint <= 0x1F1FF);
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if (!isEmoji) {
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if (codePoint > 0xFFFF) {
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result.append(Character.toChars(codePoint));
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} else {
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result.append((char) codePoint);
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}
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}
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}
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return result.toString();
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}
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public TextProcessResult call(List<String> textList, List<String> langList) {
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List<String> processedTexts = new ArrayList<>();
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for (int i = 0; i < textList.size(); i++) {
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processedTexts.add(preprocessText(textList.get(i), langList.get(i)));
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}
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// Convert texts to unicode values first to get correct character counts
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List<int[]> allUnicodeVals = new ArrayList<>();
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for (String text : processedTexts) {
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allUnicodeVals.add(textToUnicodeValues(text));
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}
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int[] textIdsLengths = new int[processedTexts.size()];
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int maxLen = 0;
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for (int i = 0; i < allUnicodeVals.size(); i++) {
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textIdsLengths[i] = allUnicodeVals.get(i).length; // Use code point count, not char count
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maxLen = Math.max(maxLen, textIdsLengths[i]);
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}
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long[][] textIds = new long[processedTexts.size()][maxLen];
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for (int i = 0; i < allUnicodeVals.size(); i++) {
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int[] unicodeVals = allUnicodeVals.get(i);
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for (int j = 0; j < unicodeVals.length; j++) {
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textIds[i][j] = indexer[unicodeVals[j]];
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}
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}
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float[][][] textMask = getTextMask(textIdsLengths);
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return new TextProcessResult(textIds, textMask);
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}
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private String preprocessText(String text, String lang) {
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// TODO: Need advanced normalizer for better performance
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text = Normalizer.normalize(text, Normalizer.Form.NFKD);
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// Remove emojis (wide Unicode range)
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// Java Pattern doesn't support \x{...} syntax for Unicode above \uFFFF
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// Use character filtering instead
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text = removeEmojis(text);
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// Replace various dashes and symbols
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Map<String, String> replacements = new HashMap<>();
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replacements.put("–", "-"); // en dash
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replacements.put("‑", "-"); // non-breaking hyphen
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replacements.put("—", "-"); // em dash
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replacements.put("_", " "); // underscore
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replacements.put("\u201C", "\""); // left double quote
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replacements.put("\u201D", "\""); // right double quote
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replacements.put("\u2018", "'"); // left single quote
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replacements.put("\u2019", "'"); // right single quote
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replacements.put("´", "'"); // acute accent
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replacements.put("`", "'"); // grave accent
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replacements.put("[", " "); // left bracket
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replacements.put("]", " "); // right bracket
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replacements.put("|", " "); // vertical bar
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replacements.put("/", " "); // slash
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replacements.put("#", " "); // hash
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replacements.put("→", " "); // right arrow
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replacements.put("←", " "); // left arrow
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for (Map.Entry<String, String> entry : replacements.entrySet()) {
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text = text.replace(entry.getKey(), entry.getValue());
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}
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// Remove special symbols
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text = text.replaceAll("[♥☆♡©\\\\]", "");
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// Replace known expressions
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Map<String, String> exprReplacements = new HashMap<>();
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exprReplacements.put("@", " at ");
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exprReplacements.put("e.g.,", "for example, ");
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exprReplacements.put("i.e.,", "that is, ");
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for (Map.Entry<String, String> entry : exprReplacements.entrySet()) {
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text = text.replace(entry.getKey(), entry.getValue());
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}
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// Fix spacing around punctuation
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text = text.replaceAll(" ,", ",");
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text = text.replaceAll(" \\.", ".");
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text = text.replaceAll(" !", "!");
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text = text.replaceAll(" \\?", "?");
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text = text.replaceAll(" ;", ";");
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text = text.replaceAll(" :", ":");
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text = text.replaceAll(" '", "'");
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// Remove duplicate quotes
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while (text.contains("\"\"")) {
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text = text.replace("\"\"", "\"");
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}
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while (text.contains("''")) {
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text = text.replace("''", "'");
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}
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while (text.contains("``")) {
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text = text.replace("``", "`");
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}
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// Remove extra spaces
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text = text.replaceAll("\\s+", " ").trim();
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// If text doesn't end with punctuation, quotes, or closing brackets, add a period
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if (!text.matches(".*[.!?;:,'\"\\u201C\\u201D\\u2018\\u2019)\\]}…。」』】〉》›»]$")) {
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text += ".";
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}
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// Validate language
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if (!Languages.isValid(lang)) {
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throw new IllegalArgumentException("Invalid language: " + lang + ". Available: " + Languages.AVAILABLE);
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}
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// Wrap text with language tags
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text = "<" + lang + ">" + text + "</" + lang + ">";
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return text;
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}
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private int[] textToUnicodeValues(String text) {
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// Use codePoints() stream to correctly handle surrogate pairs
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return text.codePoints().toArray();
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}
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private float[][][] getTextMask(int[] lengths) {
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int bsz = lengths.length;
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int maxLen = 0;
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for (int len : lengths) {
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maxLen = Math.max(maxLen, len);
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}
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float[][][] mask = new float[bsz][1][maxLen];
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for (int i = 0; i < bsz; i++) {
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for (int j = 0; j < maxLen; j++) {
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mask[i][0][j] = j < lengths[i] ? 1.0f : 0.0f;
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}
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}
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return mask;
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}
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static class TextProcessResult {
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long[][] textIds;
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float[][][] textMask;
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TextProcessResult(long[][] textIds, float[][][] textMask) {
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this.textIds = textIds;
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this.textMask = textMask;
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}
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}
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}
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/**
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* Text-to-Speech inference class
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*/
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class TextToSpeech {
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private Config config;
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private UnicodeProcessor textProcessor;
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private OrtSession dpSession;
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private OrtSession textEncSession;
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private OrtSession vectorEstSession;
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private OrtSession vocoderSession;
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public int sampleRate;
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private int baseChunkSize;
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private int chunkCompress;
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private int ldim;
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public TextToSpeech(Config config, UnicodeProcessor textProcessor,
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OrtSession dpSession, OrtSession textEncSession,
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OrtSession vectorEstSession, OrtSession vocoderSession) {
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this.config = config;
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this.textProcessor = textProcessor;
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this.dpSession = dpSession;
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this.textEncSession = textEncSession;
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this.vectorEstSession = vectorEstSession;
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this.vocoderSession = vocoderSession;
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this.sampleRate = config.ae.sampleRate;
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this.baseChunkSize = config.ae.baseChunkSize;
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this.chunkCompress = config.ttl.chunkCompressFactor;
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this.ldim = config.ttl.latentDim;
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}
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private TTSResult _infer(List<String> textList, List<String> langList, Style style, int totalStep, float speed, OrtEnvironment env)
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throws OrtException {
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int bsz = textList.size();
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// Process text
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UnicodeProcessor.TextProcessResult textResult = textProcessor.call(textList, langList);
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long[][] textIds = textResult.textIds;
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float[][][] textMask = textResult.textMask;
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// Create tensors
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OnnxTensor textIdsTensor = Helper.createLongTensor(textIds, env);
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OnnxTensor textMaskTensor = Helper.createFloatTensor(textMask, env);
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// Predict duration
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Map<String, OnnxTensor> dpInputs = new HashMap<>();
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dpInputs.put("text_ids", textIdsTensor);
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dpInputs.put("style_dp", style.dpTensor);
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dpInputs.put("text_mask", textMaskTensor);
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OrtSession.Result dpResult = dpSession.run(dpInputs);
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Object dpValue = dpResult.get(0).getValue();
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float[] duration;
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if (dpValue instanceof float[][]) {
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duration = ((float[][]) dpValue)[0];
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} else {
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duration = (float[]) dpValue;
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}
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// Apply speed factor to duration
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for (int i = 0; i < duration.length; i++) {
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duration[i] /= speed;
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}
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// Encode text
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Map<String, OnnxTensor> textEncInputs = new HashMap<>();
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textEncInputs.put("text_ids", textIdsTensor);
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textEncInputs.put("style_ttl", style.ttlTensor);
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textEncInputs.put("text_mask", textMaskTensor);
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OrtSession.Result textEncResult = textEncSession.run(textEncInputs);
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OnnxTensor textEmbTensor = (OnnxTensor) textEncResult.get(0);
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// Sample noisy latent
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NoisyLatentResult noisyLatentResult = sampleNoisyLatent(duration);
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float[][][] xt = noisyLatentResult.noisyLatent;
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float[][][] latentMask = noisyLatentResult.latentMask;
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// Prepare constant tensors
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float[] totalStepArray = new float[bsz];
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Arrays.fill(totalStepArray, (float) totalStep);
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OnnxTensor totalStepTensor = OnnxTensor.createTensor(env, totalStepArray);
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// Denoising loop
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for (int step = 0; step < totalStep; step++) {
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float[] currentStepArray = new float[bsz];
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Arrays.fill(currentStepArray, (float) step);
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OnnxTensor currentStepTensor = OnnxTensor.createTensor(env, currentStepArray);
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OnnxTensor noisyLatentTensor = Helper.createFloatTensor(xt, env);
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OnnxTensor latentMaskTensor = Helper.createFloatTensor(latentMask, env);
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OnnxTensor textMaskTensor2 = Helper.createFloatTensor(textMask, env);
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Map<String, OnnxTensor> vectorEstInputs = new HashMap<>();
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vectorEstInputs.put("noisy_latent", noisyLatentTensor);
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vectorEstInputs.put("text_emb", textEmbTensor);
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vectorEstInputs.put("style_ttl", style.ttlTensor);
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vectorEstInputs.put("latent_mask", latentMaskTensor);
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vectorEstInputs.put("text_mask", textMaskTensor2);
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vectorEstInputs.put("current_step", currentStepTensor);
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vectorEstInputs.put("total_step", totalStepTensor);
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OrtSession.Result vectorEstResult = vectorEstSession.run(vectorEstInputs);
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float[][][] denoised = (float[][][]) vectorEstResult.get(0).getValue();
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// Update latent
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xt = denoised;
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// Clean up
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currentStepTensor.close();
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noisyLatentTensor.close();
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latentMaskTensor.close();
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textMaskTensor2.close();
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vectorEstResult.close();
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}
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// Generate waveform
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OnnxTensor finalLatentTensor = Helper.createFloatTensor(xt, env);
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Map<String, OnnxTensor> vocoderInputs = new HashMap<>();
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vocoderInputs.put("latent", finalLatentTensor);
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OrtSession.Result vocoderResult = vocoderSession.run(vocoderInputs);
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float[][] wavBatch = (float[][]) vocoderResult.get(0).getValue();
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// Flatten all batch audio into a single array for batch processing
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int totalSamples = 0;
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for (float[] w : wavBatch) {
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totalSamples += w.length;
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}
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float[] wav = new float[totalSamples];
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int offset = 0;
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for (float[] w : wavBatch) {
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System.arraycopy(w, 0, wav, offset, w.length);
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offset += w.length;
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}
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// Clean up
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textIdsTensor.close();
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textMaskTensor.close();
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dpResult.close();
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textEncResult.close();
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totalStepTensor.close();
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finalLatentTensor.close();
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vocoderResult.close();
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return new TTSResult(wav, duration);
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}
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private NoisyLatentResult sampleNoisyLatent(float[] duration) {
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int bsz = duration.length;
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float maxDur = 0;
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for (float d : duration) {
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maxDur = Math.max(maxDur, d);
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}
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long wavLenMax = (long) (maxDur * sampleRate);
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long[] wavLengths = new long[bsz];
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for (int i = 0; i < bsz; i++) {
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wavLengths[i] = (long) (duration[i] * sampleRate);
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}
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int chunkSize = baseChunkSize * chunkCompress;
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int latentLen = (int) ((wavLenMax + chunkSize - 1) / chunkSize);
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int latentDim = ldim * chunkCompress;
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Random rng = new Random();
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float[][][] noisyLatent = new float[bsz][latentDim][latentLen];
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for (int b = 0; b < bsz; b++) {
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for (int d = 0; d < latentDim; d++) {
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for (int t = 0; t < latentLen; t++) {
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// Box-Muller transform
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double u1 = Math.max(1e-10, rng.nextDouble());
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double u2 = rng.nextDouble();
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noisyLatent[b][d][t] = (float) (Math.sqrt(-2.0 * Math.log(u1)) * Math.cos(2.0 * Math.PI * u2));
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}
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}
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}
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float[][][] latentMask = Helper.getLatentMask(wavLengths, config);
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// Apply mask
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for (int b = 0; b < bsz; b++) {
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for (int d = 0; d < latentDim; d++) {
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for (int t = 0; t < latentLen; t++) {
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noisyLatent[b][d][t] *= latentMask[b][0][t];
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}
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}
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}
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return new NoisyLatentResult(noisyLatent, latentMask);
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}
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/**
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* Synthesize speech from a single text with automatic chunking
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*/
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public TTSResult call(String text, String lang, Style style, int totalStep, float speed, float silenceDuration, OrtEnvironment env)
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throws OrtException {
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int maxLen = lang.equals("ko") ? 120 : 300;
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List<String> chunks = Helper.chunkText(text, maxLen);
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List<Float> wavCat = new ArrayList<>();
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float durCat = 0.0f;
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for (int i = 0; i < chunks.size(); i++) {
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TTSResult result = _infer(Arrays.asList(chunks.get(i)), Arrays.asList(lang), style, totalStep, speed, env);
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float dur = result.duration[0];
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int wavLen = (int) (sampleRate * dur);
|
||||
float[] wavChunk = new float[wavLen];
|
||||
System.arraycopy(result.wav, 0, wavChunk, 0, Math.min(wavLen, result.wav.length));
|
||||
|
||||
if (i == 0) {
|
||||
for (float val : wavChunk) {
|
||||
wavCat.add(val);
|
||||
}
|
||||
durCat = dur;
|
||||
} else {
|
||||
int silenceLen = (int) (silenceDuration * sampleRate);
|
||||
for (int j = 0; j < silenceLen; j++) {
|
||||
wavCat.add(0.0f);
|
||||
}
|
||||
for (float val : wavChunk) {
|
||||
wavCat.add(val);
|
||||
}
|
||||
durCat += silenceDuration + dur;
|
||||
}
|
||||
}
|
||||
|
||||
float[] wavArray = new float[wavCat.size()];
|
||||
for (int i = 0; i < wavCat.size(); i++) {
|
||||
wavArray[i] = wavCat.get(i);
|
||||
}
|
||||
|
||||
return new TTSResult(wavArray, new float[]{durCat});
|
||||
}
|
||||
|
||||
/**
|
||||
* Batch synthesize speech from multiple texts
|
||||
*/
|
||||
public TTSResult batch(List<String> textList, List<String> langList, Style style, int totalStep, float speed, OrtEnvironment env)
|
||||
throws OrtException {
|
||||
return _infer(textList, langList, style, totalStep, speed, env);
|
||||
}
|
||||
|
||||
public void close() throws OrtException {
|
||||
if (dpSession != null) dpSession.close();
|
||||
if (textEncSession != null) textEncSession.close();
|
||||
if (vectorEstSession != null) vectorEstSession.close();
|
||||
if (vocoderSession != null) vocoderSession.close();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Style holder class
|
||||
*/
|
||||
class Style {
|
||||
OnnxTensor ttlTensor;
|
||||
OnnxTensor dpTensor;
|
||||
|
||||
Style(OnnxTensor ttlTensor, OnnxTensor dpTensor) {
|
||||
this.ttlTensor = ttlTensor;
|
||||
this.dpTensor = dpTensor;
|
||||
}
|
||||
|
||||
public void close() throws OrtException {
|
||||
if (ttlTensor != null) ttlTensor.close();
|
||||
if (dpTensor != null) dpTensor.close();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* TTS result holder
|
||||
*/
|
||||
class TTSResult {
|
||||
float[] wav;
|
||||
float[] duration;
|
||||
|
||||
TTSResult(float[] wav, float[] duration) {
|
||||
this.wav = wav;
|
||||
this.duration = duration;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Noisy latent result holder
|
||||
*/
|
||||
class NoisyLatentResult {
|
||||
float[][][] noisyLatent;
|
||||
float[][][] latentMask;
|
||||
|
||||
NoisyLatentResult(float[][][] noisyLatent, float[][][] latentMask) {
|
||||
this.noisyLatent = noisyLatent;
|
||||
this.latentMask = latentMask;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Helper utility class
|
||||
*/
|
||||
public class Helper {
|
||||
|
||||
private static final int MAX_CHUNK_LENGTH = 300;
|
||||
private static final String[] ABBREVIATIONS = {
|
||||
"Dr.", "Mr.", "Mrs.", "Ms.", "Prof.", "Sr.", "Jr.",
|
||||
"St.", "Ave.", "Rd.", "Blvd.", "Dept.", "Inc.", "Ltd.",
|
||||
"Co.", "Corp.", "etc.", "vs.", "i.e.", "e.g.", "Ph.D."
|
||||
};
|
||||
|
||||
/**
|
||||
* Chunk text into smaller segments based on paragraphs and sentences
|
||||
*/
|
||||
public static List<String> chunkText(String text, int maxLen) {
|
||||
if (maxLen == 0) {
|
||||
maxLen = MAX_CHUNK_LENGTH;
|
||||
}
|
||||
|
||||
text = text.trim();
|
||||
if (text.isEmpty()) {
|
||||
return Arrays.asList("");
|
||||
}
|
||||
|
||||
// Split by paragraphs
|
||||
String[] paragraphs = text.split("\\n\\s*\\n");
|
||||
List<String> chunks = new ArrayList<>();
|
||||
|
||||
for (String para : paragraphs) {
|
||||
para = para.trim();
|
||||
if (para.isEmpty()) {
|
||||
continue;
|
||||
}
|
||||
|
||||
if (para.length() <= maxLen) {
|
||||
chunks.add(para);
|
||||
continue;
|
||||
}
|
||||
|
||||
// Split by sentences
|
||||
List<String> sentences = splitSentences(para);
|
||||
StringBuilder current = new StringBuilder();
|
||||
int currentLen = 0;
|
||||
|
||||
for (String sentence : sentences) {
|
||||
sentence = sentence.trim();
|
||||
if (sentence.isEmpty()) {
|
||||
continue;
|
||||
}
|
||||
|
||||
int sentenceLen = sentence.length();
|
||||
if (sentenceLen > maxLen) {
|
||||
// If sentence is longer than maxLen, split by comma or space
|
||||
if (current.length() > 0) {
|
||||
chunks.add(current.toString().trim());
|
||||
current.setLength(0);
|
||||
currentLen = 0;
|
||||
}
|
||||
|
||||
// Try splitting by comma
|
||||
String[] parts = sentence.split(",");
|
||||
for (String part : parts) {
|
||||
part = part.trim();
|
||||
if (part.isEmpty()) {
|
||||
continue;
|
||||
}
|
||||
|
||||
int partLen = part.length();
|
||||
if (partLen > maxLen) {
|
||||
// Split by space as last resort
|
||||
String[] words = part.split("\\s+");
|
||||
StringBuilder wordChunk = new StringBuilder();
|
||||
int wordChunkLen = 0;
|
||||
|
||||
for (String word : words) {
|
||||
int wordLen = word.length();
|
||||
if (wordChunkLen + wordLen + 1 > maxLen && wordChunk.length() > 0) {
|
||||
chunks.add(wordChunk.toString().trim());
|
||||
wordChunk.setLength(0);
|
||||
wordChunkLen = 0;
|
||||
}
|
||||
|
||||
if (wordChunk.length() > 0) {
|
||||
wordChunk.append(" ");
|
||||
wordChunkLen++;
|
||||
}
|
||||
wordChunk.append(word);
|
||||
wordChunkLen += wordLen;
|
||||
}
|
||||
|
||||
if (wordChunk.length() > 0) {
|
||||
chunks.add(wordChunk.toString().trim());
|
||||
}
|
||||
} else {
|
||||
if (currentLen + partLen + 1 > maxLen && current.length() > 0) {
|
||||
chunks.add(current.toString().trim());
|
||||
current.setLength(0);
|
||||
currentLen = 0;
|
||||
}
|
||||
|
||||
if (current.length() > 0) {
|
||||
current.append(", ");
|
||||
currentLen += 2;
|
||||
}
|
||||
current.append(part);
|
||||
currentLen += partLen;
|
||||
}
|
||||
}
|
||||
continue;
|
||||
}
|
||||
|
||||
if (currentLen + sentenceLen + 1 > maxLen && current.length() > 0) {
|
||||
chunks.add(current.toString().trim());
|
||||
current.setLength(0);
|
||||
currentLen = 0;
|
||||
}
|
||||
|
||||
if (current.length() > 0) {
|
||||
current.append(" ");
|
||||
currentLen++;
|
||||
}
|
||||
current.append(sentence);
|
||||
currentLen += sentenceLen;
|
||||
}
|
||||
|
||||
if (current.length() > 0) {
|
||||
chunks.add(current.toString().trim());
|
||||
}
|
||||
}
|
||||
|
||||
if (chunks.isEmpty()) {
|
||||
return Arrays.asList("");
|
||||
}
|
||||
|
||||
return chunks;
|
||||
}
|
||||
|
||||
/**
|
||||
* Split text into sentences, avoiding common abbreviations
|
||||
*/
|
||||
private static List<String> splitSentences(String text) {
|
||||
// Build pattern that avoids abbreviations
|
||||
StringBuilder abbrevPattern = new StringBuilder();
|
||||
for (int i = 0; i < ABBREVIATIONS.length; i++) {
|
||||
if (i > 0) abbrevPattern.append("|");
|
||||
abbrevPattern.append(Pattern.quote(ABBREVIATIONS[i]));
|
||||
}
|
||||
|
||||
// Match sentence endings, but not abbreviations
|
||||
String patternStr = "(?<!(?:" + abbrevPattern.toString() + "))(?<=[.!?])\\s+";
|
||||
Pattern pattern = Pattern.compile(patternStr);
|
||||
return Arrays.asList(pattern.split(text));
|
||||
}
|
||||
|
||||
/**
|
||||
* Load voice style from JSON files
|
||||
*/
|
||||
public static Style loadVoiceStyle(List<String> voiceStylePaths, boolean verbose, OrtEnvironment env)
|
||||
throws IOException, OrtException {
|
||||
int bsz = voiceStylePaths.size();
|
||||
|
||||
// Read first file to get dimensions
|
||||
ObjectMapper mapper = new ObjectMapper();
|
||||
JsonNode firstRoot = mapper.readTree(new File(voiceStylePaths.get(0)));
|
||||
|
||||
long[] ttlDims = new long[3];
|
||||
for (int i = 0; i < 3; i++) {
|
||||
ttlDims[i] = firstRoot.get("style_ttl").get("dims").get(i).asLong();
|
||||
}
|
||||
long[] dpDims = new long[3];
|
||||
for (int i = 0; i < 3; i++) {
|
||||
dpDims[i] = firstRoot.get("style_dp").get("dims").get(i).asLong();
|
||||
}
|
||||
|
||||
long ttlDim1 = ttlDims[1];
|
||||
long ttlDim2 = ttlDims[2];
|
||||
long dpDim1 = dpDims[1];
|
||||
long dpDim2 = dpDims[2];
|
||||
|
||||
// Pre-allocate arrays with full batch size
|
||||
int ttlSize = (int) (bsz * ttlDim1 * ttlDim2);
|
||||
int dpSize = (int) (bsz * dpDim1 * dpDim2);
|
||||
float[] ttlFlat = new float[ttlSize];
|
||||
float[] dpFlat = new float[dpSize];
|
||||
|
||||
// Fill in the data
|
||||
for (int i = 0; i < bsz; i++) {
|
||||
JsonNode root = mapper.readTree(new File(voiceStylePaths.get(i)));
|
||||
|
||||
// Flatten TTL data
|
||||
int ttlOffset = (int) (i * ttlDim1 * ttlDim2);
|
||||
int idx = 0;
|
||||
JsonNode ttlData = root.get("style_ttl").get("data");
|
||||
for (JsonNode batch : ttlData) {
|
||||
for (JsonNode row : batch) {
|
||||
for (JsonNode val : row) {
|
||||
ttlFlat[ttlOffset + idx++] = (float) val.asDouble();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Flatten DP data
|
||||
int dpOffset = (int) (i * dpDim1 * dpDim2);
|
||||
idx = 0;
|
||||
JsonNode dpData = root.get("style_dp").get("data");
|
||||
for (JsonNode batch : dpData) {
|
||||
for (JsonNode row : batch) {
|
||||
for (JsonNode val : row) {
|
||||
dpFlat[dpOffset + idx++] = (float) val.asDouble();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
long[] ttlShape = {bsz, ttlDim1, ttlDim2};
|
||||
long[] dpShape = {bsz, dpDim1, dpDim2};
|
||||
|
||||
OnnxTensor ttlTensor = OnnxTensor.createTensor(env, FloatBuffer.wrap(ttlFlat), ttlShape);
|
||||
OnnxTensor dpTensor = OnnxTensor.createTensor(env, FloatBuffer.wrap(dpFlat), dpShape);
|
||||
|
||||
if (verbose) {
|
||||
System.out.println("Loaded " + bsz + " voice styles\n");
|
||||
}
|
||||
|
||||
return new Style(ttlTensor, dpTensor);
|
||||
}
|
||||
|
||||
/**
|
||||
* Load TTS components
|
||||
*/
|
||||
public static TextToSpeech loadTextToSpeech(String onnxDir, boolean useGpu, OrtEnvironment env)
|
||||
throws IOException, OrtException {
|
||||
if (useGpu) {
|
||||
throw new RuntimeException("GPU mode is not supported yet");
|
||||
}
|
||||
System.out.println("Using CPU for inference\n");
|
||||
|
||||
// Load config
|
||||
Config config = loadCfgs(onnxDir);
|
||||
|
||||
// Create session options
|
||||
OrtSession.SessionOptions opts = new OrtSession.SessionOptions();
|
||||
|
||||
// Load models
|
||||
OrtSession dpSession = env.createSession(onnxDir + "/duration_predictor.onnx", opts);
|
||||
OrtSession textEncSession = env.createSession(onnxDir + "/text_encoder.onnx", opts);
|
||||
OrtSession vectorEstSession = env.createSession(onnxDir + "/vector_estimator.onnx", opts);
|
||||
OrtSession vocoderSession = env.createSession(onnxDir + "/vocoder.onnx", opts);
|
||||
|
||||
// Load text processor
|
||||
UnicodeProcessor textProcessor = new UnicodeProcessor(onnxDir + "/unicode_indexer.json");
|
||||
|
||||
return new TextToSpeech(config, textProcessor, dpSession, textEncSession, vectorEstSession, vocoderSession);
|
||||
}
|
||||
|
||||
/**
|
||||
* Load configuration from JSON
|
||||
*/
|
||||
public static Config loadCfgs(String onnxDir) throws IOException {
|
||||
ObjectMapper mapper = new ObjectMapper();
|
||||
JsonNode root = mapper.readTree(new File(onnxDir + "/tts.json"));
|
||||
|
||||
Config config = new Config();
|
||||
config.ae = new Config.AEConfig();
|
||||
config.ae.sampleRate = root.get("ae").get("sample_rate").asInt();
|
||||
config.ae.baseChunkSize = root.get("ae").get("base_chunk_size").asInt();
|
||||
|
||||
config.ttl = new Config.TTLConfig();
|
||||
config.ttl.chunkCompressFactor = root.get("ttl").get("chunk_compress_factor").asInt();
|
||||
config.ttl.latentDim = root.get("ttl").get("latent_dim").asInt();
|
||||
|
||||
return config;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get latent mask from wav lengths
|
||||
*/
|
||||
public static float[][][] getLatentMask(long[] wavLengths, Config config) {
|
||||
long baseChunkSize = config.ae.baseChunkSize;
|
||||
long chunkCompressFactor = config.ttl.chunkCompressFactor;
|
||||
long latentSize = baseChunkSize * chunkCompressFactor;
|
||||
|
||||
long[] latentLengths = new long[wavLengths.length];
|
||||
long maxLen = 0;
|
||||
for (int i = 0; i < wavLengths.length; i++) {
|
||||
latentLengths[i] = (wavLengths[i] + latentSize - 1) / latentSize;
|
||||
maxLen = Math.max(maxLen, latentLengths[i]);
|
||||
}
|
||||
|
||||
float[][][] mask = new float[wavLengths.length][1][(int) maxLen];
|
||||
for (int i = 0; i < wavLengths.length; i++) {
|
||||
for (int j = 0; j < maxLen; j++) {
|
||||
mask[i][0][j] = j < latentLengths[i] ? 1.0f : 0.0f;
|
||||
}
|
||||
}
|
||||
return mask;
|
||||
}
|
||||
|
||||
/**
|
||||
* Write WAV file
|
||||
*/
|
||||
public static void writeWavFile(String filename, float[] audioData, int sampleRate) throws IOException {
|
||||
// Convert float to byte array
|
||||
byte[] bytes = new byte[audioData.length * 2];
|
||||
ByteBuffer buffer = ByteBuffer.wrap(bytes);
|
||||
buffer.order(ByteOrder.LITTLE_ENDIAN);
|
||||
|
||||
for (float sample : audioData) {
|
||||
short val = (short) Math.max(-32768, Math.min(32767, sample * 32767));
|
||||
buffer.putShort(val);
|
||||
}
|
||||
|
||||
ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
|
||||
AudioFormat format = new AudioFormat(sampleRate, 16, 1, true, false);
|
||||
AudioInputStream ais = new AudioInputStream(bais, format, audioData.length);
|
||||
AudioSystem.write(ais, AudioFileFormat.Type.WAVE, new File(filename));
|
||||
}
|
||||
|
||||
/**
|
||||
* Sanitize filename (supports Unicode characters)
|
||||
*/
|
||||
public static String sanitizeFilename(String text, int maxLen) {
|
||||
// Get first maxLen characters (code points, not chars for surrogate pairs)
|
||||
int[] codePoints = text.codePoints().limit(maxLen).toArray();
|
||||
StringBuilder result = new StringBuilder();
|
||||
for (int codePoint : codePoints) {
|
||||
if (Character.isLetterOrDigit(codePoint)) {
|
||||
result.appendCodePoint(codePoint);
|
||||
} else {
|
||||
result.append('_');
|
||||
}
|
||||
}
|
||||
return result.toString();
|
||||
}
|
||||
|
||||
/**
|
||||
* Timer utility
|
||||
*/
|
||||
public static <T> T timer(String name, java.util.function.Supplier<T> fn) {
|
||||
long start = System.currentTimeMillis();
|
||||
System.out.println(name + "...");
|
||||
T result = fn.get();
|
||||
long elapsed = System.currentTimeMillis() - start;
|
||||
System.out.printf(" -> %s completed in %.2f sec\n", name, elapsed / 1000.0);
|
||||
return result;
|
||||
}
|
||||
|
||||
/**
|
||||
* Create float tensor from 3D array
|
||||
*/
|
||||
public static OnnxTensor createFloatTensor(float[][][] array, OrtEnvironment env) throws OrtException {
|
||||
int dim0 = array.length;
|
||||
int dim1 = array[0].length;
|
||||
int dim2 = array[0][0].length;
|
||||
|
||||
float[] flat = new float[dim0 * dim1 * dim2];
|
||||
int idx = 0;
|
||||
for (int i = 0; i < dim0; i++) {
|
||||
for (int j = 0; j < dim1; j++) {
|
||||
for (int k = 0; k < dim2; k++) {
|
||||
flat[idx++] = array[i][j][k];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
long[] shape = {dim0, dim1, dim2};
|
||||
return OnnxTensor.createTensor(env, FloatBuffer.wrap(flat), shape);
|
||||
}
|
||||
|
||||
/**
|
||||
* Create long tensor from 2D array
|
||||
*/
|
||||
public static OnnxTensor createLongTensor(long[][] array, OrtEnvironment env) throws OrtException {
|
||||
int dim0 = array.length;
|
||||
int dim1 = array[0].length;
|
||||
|
||||
long[] flat = new long[dim0 * dim1];
|
||||
int idx = 0;
|
||||
for (int i = 0; i < dim0; i++) {
|
||||
for (int j = 0; j < dim1; j++) {
|
||||
flat[idx++] = array[i][j];
|
||||
}
|
||||
}
|
||||
|
||||
long[] shape = {dim0, dim1};
|
||||
return OnnxTensor.createTensor(env, LongBuffer.wrap(flat), shape);
|
||||
}
|
||||
|
||||
/**
|
||||
* Load JSON long array
|
||||
*/
|
||||
public static long[] loadJsonLongArray(String filePath) throws IOException {
|
||||
ObjectMapper mapper = new ObjectMapper();
|
||||
JsonNode root = mapper.readTree(new File(filePath));
|
||||
|
||||
long[] result = new long[root.size()];
|
||||
for (int i = 0; i < root.size(); i++) {
|
||||
result[i] = root.get(i).asLong();
|
||||
}
|
||||
return result;
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user