58 lines
1.9 KiB
JavaScript
58 lines
1.9 KiB
JavaScript
// Copyright (c) 2024 Xiaomi Corporation
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const sherpa_onnx = require('sherpa-onnx-node');
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const performance = require('perf_hooks').performance;
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// Please download test files from
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// https://github.com/k2-fsa/sherpa-onnx/releases/tag/asr-models
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const config = {
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'featConfig': {
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'sampleRate': 16000,
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'featureDim': 80,
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},
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'modelConfig': {
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'transducer': {
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'encoder':
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'./sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20/encoder-epoch-99-avg-1.onnx',
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'decoder':
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'./sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20/decoder-epoch-99-avg-1.onnx',
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'joiner':
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'./sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20/joiner-epoch-99-avg-1.onnx',
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},
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'tokens':
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'./sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20/tokens.txt',
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'numThreads': 2,
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'provider': 'cpu',
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'debug': 1,
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'modelType': 'zipformer',
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}
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};
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const waveFilename =
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'./sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20/test_wavs/0.wav';
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const recognizer = new sherpa_onnx.OnlineRecognizer(config);
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console.log('Started')
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let start = performance.now();
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const stream = recognizer.createStream();
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const wave = sherpa_onnx.readWave(waveFilename);
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stream.acceptWaveform({sampleRate: wave.sampleRate, samples: wave.samples});
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const tailPadding = new Float32Array(wave.sampleRate * 0.4);
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stream.acceptWaveform({samples: tailPadding, sampleRate: wave.sampleRate});
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while (recognizer.isReady(stream)) {
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recognizer.decode(stream);
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}
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result = recognizer.getResult(stream)
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let stop = performance.now();
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console.log('Done')
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const elapsed_seconds = (stop - start) / 1000;
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const duration = wave.samples.length / wave.sampleRate;
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const real_time_factor = elapsed_seconds / duration;
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console.log('Wave duration', duration.toFixed(3), 'secodns')
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console.log('Elapsed', elapsed_seconds.toFixed(3), 'secodns')
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console.log('RTF', real_time_factor.toFixed(3))
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console.log('result', result.text)
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