60 lines
1.9 KiB
Python
60 lines
1.9 KiB
Python
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#!/usr/bin/env python3
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import json
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import struct
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import sys
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import wave
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from io import BytesIO
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from urllib.request import Request, urlopen
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from scipy.io import wavfile
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from scipy.io.wavfile import read as read_wav
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def stt(wav_file: str, url: str) -> str:
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print('Connecting to \'{}\'...'.format(url))
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request = Request('{}/stt'.format(url), data=_load_wav(wav_file), headers={'Content-Type': 'audio/wav'})
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result = json.loads(urlopen(request).read().decode('utf-8'))
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if not ('code' in result and 'text' in result):
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raise RuntimeError('Wrong reply from server: {}'.format(result))
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return result['text'] if not result['code'] else 'Server error: [{code}]: {text}'.format(**result)
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def _load_wav(wav_file, convert_rate=16000, convert_width=2, channels=1):
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_check_wav(wav_file)
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with wave.open(wav_file, 'rb') as in_:
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src_data = in_.readframes(in_.getnframes())
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with BytesIO() as file:
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with wave.open(file, 'wb') as out:
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out.setframerate(convert_rate)
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out.setsampwidth(convert_width)
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out.setnchannels(channels)
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out.writeframes(src_data)
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result = file.getvalue()
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return result
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def _check_wav(wav_file):
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sample_rate, sig = wavfile.read(wav_file)
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channels = len(sig.shape)
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bits = sig.dtype.base.name
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if sample_rate != 16000:
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raise Exception(f'Sample rate is not 16000: {sample_rate}')
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if channels != 1:
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raise Exception(f'Number of Channels is not 1 (Not mono): {channels}')
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if bits != 'int16':
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raise Exception(f'Bits per sample 16: {bits}')
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def _main():
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if len(sys.argv) < 2:
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print('Usage: {} FILE [URL]'.format(sys.argv[0]))
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exit(1)
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file = sys.argv[1]
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server = 'http://127.0.0.1:8086' if len(sys.argv) < 3 else sys.argv[2]
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print('Result: {}'.format(stt(file, server)))
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if __name__ == '__main__':
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_main()
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