Add speechtotext script
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#!/usr/bin/env python3
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import json
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import os
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import sys
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import asyncio
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import websockets
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import logging
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import sounddevice as sd
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import argparse
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def int_or_str(text):
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"""Helper function for argument parsing."""
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try:
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return int(text)
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except ValueError:
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return text
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def callback(indata, frames, time, status):
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"""This is called (from a separate thread) for each audio block."""
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loop.call_soon_threadsafe(audio_queue.put_nowait, bytes(indata))
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async def run_test():
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with sd.RawInputStream(samplerate=args.samplerate, blocksize = 4000, device=args.device, dtype='int16',
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channels=1, callback=callback) as device:
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async with websockets.connect(args.uri) as websocket:
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await websocket.send('{ "config" : { "sample_rate" : %d } }' % (device.samplerate))
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while True:
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data = await audio_queue.get()
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await websocket.send(data)
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result = await websocket.recv()
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j = json.loads(result)
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if "text" in j and "result" in j:
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print(j["text"])
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n = 0
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for word in j["result"]:
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n += int(word["conf"])
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print(n/len(j["result"]))
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await websocket.send('{"eof" : 1}')
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print (await websocket.recv())
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async def main():
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global args
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global loop
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global audio_queue
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parser = argparse.ArgumentParser(add_help=False)
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parser.add_argument('-l', '--list-devices', action='store_true',
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help='show list of audio devices and exit')
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args, remaining = parser.parse_known_args()
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if args.list_devices:
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print(sd.query_devices())
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parser.exit(0)
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parser = argparse.ArgumentParser(description="ASR Server",
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formatter_class=argparse.RawDescriptionHelpFormatter,
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parents=[parser])
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parser.add_argument('-u', '--uri', type=str, metavar='URL',
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help='Server URL', default='ws://localhost:2700')
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parser.add_argument('-d', '--device', type=int_or_str,
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help='input device (numeric ID or substring)')
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parser.add_argument('-r', '--samplerate', type=int, help='sampling rate', default=16000)
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args = parser.parse_args(remaining)
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loop = asyncio.get_running_loop()
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audio_queue = asyncio.Queue()
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logging.basicConfig(level=logging.INFO)
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await run_test()
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if __name__ == '__main__':
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asyncio.run(main())
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