49 lines
1.7 KiB
JavaScript
49 lines
1.7 KiB
JavaScript
// Copyright (c) 2025 Xiaomi Corporation
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const sherpa_onnx = require('sherpa-onnx-node');
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// please refer to
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// https://k2-fsa.github.io/sherpa/onnx/tts/pretrained_models/matcha.html#matcha-icefall-en-us-ljspeech-american-english-1-female-speaker
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// to download model files
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function createOfflineTts() {
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const config = {
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model: {
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matcha: {
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acousticModel: './matcha-icefall-en_US-ljspeech/model-steps-3.onnx',
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vocoder: './vocos-22khz-univ.onnx',
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lexicon: './matcha-icefall-en_US-ljspeech/lexicon.txt',
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tokens: './matcha-icefall-en_US-ljspeech/tokens.txt',
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dataDir: './matcha-icefall-en_US-ljspeech/espeak-ng-data',
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},
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debug: true,
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numThreads: 1,
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provider: 'cpu',
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},
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maxNumSentences: 1,
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};
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return new sherpa_onnx.OfflineTts(config);
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}
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const tts = createOfflineTts();
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const text =
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'Today as always, men fall into two groups: slaves and free men. Whoever does not have two-thirds of his day for himself, is a slave, whatever he may be: a statesman, a businessman, an official, or a scholar.'
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let start = Date.now();
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const audio = tts.generate({text: text, sid: 0, speed: 1.0});
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let stop = Date.now();
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const elapsed_seconds = (stop - start) / 1000;
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const duration = audio.samples.length / audio.sampleRate;
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const real_time_factor = elapsed_seconds / duration;
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console.log('Wave duration', duration.toFixed(3), 'seconds')
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console.log('Elapsed', elapsed_seconds.toFixed(3), 'seconds')
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console.log(
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`RTF = ${elapsed_seconds.toFixed(3)}/${duration.toFixed(3)} =`,
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real_time_factor.toFixed(3))
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const filename = 'test-matcha-en.wav';
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sherpa_onnx.writeWave(
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filename, {samples: audio.samples, sampleRate: audio.sampleRate});
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console.log(`Saved to ${filename}`);
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