Files
sherpa-onnx/java-api-examples/ZipVoiceTtsLexicon.java
T
Fangjun Kuang 0b3647632f Remove espeak-ng and piper-phonemize from sherpa-onnx (#4055)
Fixes #3731

espeak-ng and piper-phonemize are no longer built into sherpa-onnx.

Text frontends are now:

- **lexicon** — built in, no extra dependency
- **phonemize** — phonemize outside sherpa-onnx (e.g. [piper-phonemize](https://github.com/csukuangfj/piper-phonemize)) and pass the result in. That library is GPL, so it stays optional: sherpa-onnx is GPL-free after this PR.

## API

- `SherpaOnnxGenerationConfig` gains `phoneme_codepoints` and `tokens` (mutually exclusive alternatives to `text`)
- `data_dir` on the TTS model configs is deprecated and ignored; the ABI slot is kept
- all bindings updated: C/C++, Python, Java, Kotlin, Go, Rust, C#, Swift, Pascal, Dart/Flutter, node-addon, WASM, HarmonyOS
2026-10-20 11:09:04 +08:00

77 lines
3.0 KiB
Java

// Copyright 2026 Xiaomi Corporation
// This file shows how to use a ZipVoice Chinese/English model
// for zero-shot text to speech.
import com.k2fsa.sherpa.onnx.*;
import java.util.HashMap;
import java.util.Map;
public class ZipVoiceTtsLexicon {
public static void main(String[] args) {
LibraryUtils.enableDebug();
// please visit
// https://k2-fsa.github.io/sherpa/onnx/tts/zipvoice.html
// to download model files
String modelDir = "./sherpa-onnx-zipvoice-distill-int8-zh-en-emilia";
String referenceAudioFilename = modelDir + "/test_wavs/leijun-1.wav";
String text = "小米的价值观是真诚, 热爱. 真诚,就是不欺人也不自欺. 热爱, 就是全心投入并享受其中.";
String referenceText = "那还是三十六年前, 一九八七年. 我呢考上了武汉大学的计算机系.";
OfflineTtsZipVoiceModelConfig zipvoiceModelConfig =
OfflineTtsZipVoiceModelConfig.builder()
.setTokens(modelDir + "/tokens.txt")
.setEncoder(modelDir + "/encoder.int8.onnx")
.setDecoder(modelDir + "/decoder.int8.onnx")
.setVocoder("./vocos_24khz.onnx")
.setLexicon(modelDir + "/lexicon.txt")
.build();
OfflineTtsModelConfig modelConfig =
OfflineTtsModelConfig.builder()
.setZipvoice(zipvoiceModelConfig)
.setNumThreads(2)
.setDebug(false)
.build();
OfflineTtsConfig config = OfflineTtsConfig.builder().setModel(modelConfig).build();
OfflineTts tts = new OfflineTts(config);
WaveReader reader = new WaveReader(referenceAudioFilename);
GenerationConfig genConfig = new GenerationConfig();
genConfig.setReferenceAudio(reader.getSamples());
genConfig.setReferenceSampleRate(reader.getSampleRate());
genConfig.setReferenceText(referenceText);
genConfig.setNumSteps(4);
Map<String, String> extra = new HashMap<>();
extra.put("min_char_in_sentence", "10");
genConfig.setExtra(extra);
long start = System.currentTimeMillis();
GeneratedAudio audio =
tts.generateWithConfigAndCallback(
text,
genConfig,
samples -> {
System.out.println("callback got called with " + samples.length + " samples");
return 1;
});
long stop = System.currentTimeMillis();
float timeElapsedSeconds = (stop - start) / 1000.0f;
float audioDuration = audio.getSamples().length / (float) audio.getSampleRate();
float realTimeFactor = timeElapsedSeconds / audioDuration;
String waveFilename = "generated-zipvoice-zh-en-lexicon-java.wav";
audio.save(waveFilename);
System.out.printf("-- elapsed : %.3f seconds\n", timeElapsedSeconds);
System.out.printf("-- audio duration: %.3f seconds\n", audioDuration);
System.out.printf("-- real-time factor (RTF): %.3f\n", realTimeFactor);
System.out.printf("-- text: %s\n", text);
System.out.printf("-- Saved to %s\n", waveFilename);
tts.release();
}
}