# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. """ record wave from the mic """ import asyncio import json import logging import threading import wave from signal import SIGINT from signal import SIGTERM import pyaudio import websockets class ASRWsAudioHandler(threading.Thread): def __init__(self, url="127.0.0.1", port=8091): threading.Thread.__init__(self) self.url = url self.port = port self.url = "ws://" + self.url + ":" + str(self.port) + "/ws/asr" self.fileName = "./output.wav" self.chunk = 5120 self.format = pyaudio.paInt16 self.channels = 1 self.rate = 16000 self._running = True self._frames = [] self.data_backup = [] def startrecord(self): """ start a new thread to record wave """ threading._start_new_thread(self.recording, ()) def recording(self): """ recording wave """ self._running = True self._frames = [] p = pyaudio.PyAudio() stream = p.open( format=self.format, channels=self.channels, rate=self.rate, input=True, frames_per_buffer=self.chunk) while (self._running): data = stream.read(self.chunk) self._frames.append(data) self.data_backup.append(data) stream.stop_stream() stream.close() p.terminate() def save(self): """ save wave data """ p = pyaudio.PyAudio() wf = wave.open(self.fileName, 'wb') wf.setnchannels(self.channels) wf.setsampwidth(p.get_sample_size(self.format)) wf.setframerate(self.rate) wf.writeframes(b''.join(self.data_backup)) wf.close() p.terminate() def stoprecord(self): """ stop recording """ self._running = False async def run(self): aa = input("是否开始录音? (y/n)") if aa.strip() == "y": self.startrecord() logging.info("*" * 10 + "开始录音,请输入语音") async with websockets.connect(self.url) as ws: # 发送开始指令 audio_info = json.dumps( { "name": "test.wav", "signal": "start", "nbest": 5 }, sort_keys=True, indent=4, separators=(',', ': ')) await ws.send(audio_info) msg = await ws.recv() logging.info("receive msg={}".format(msg)) # send bytes data logging.info("结束录音请: Ctrl + c。继续请按回车。") try: while True: while len(self._frames) > 0: await ws.send(self._frames.pop(0)) msg = await ws.recv() logging.info("receive msg={}".format(msg)) except asyncio.CancelledError: # quit # send finished audio_info = json.dumps( { "name": "test.wav", "signal": "end", "nbest": 5 }, sort_keys=True, indent=4, separators=(',', ': ')) await ws.send(audio_info) msg = await ws.recv() logging.info("receive msg={}".format(msg)) self.stoprecord() logging.info("*" * 10 + "录音结束") self.save() elif aa.strip() == "n": exit() else: print("无效输入!") exit() if __name__ == "__main__": logging.basicConfig(level=logging.INFO) logging.info("asr websocket client start") handler = ASRWsAudioHandler("127.0.0.1", 8091) loop = asyncio.get_event_loop() main_task = asyncio.ensure_future(handler.run()) for signal in [SIGINT, SIGTERM]: loop.add_signal_handler(signal, main_task.cancel) try: loop.run_until_complete(main_task) finally: loop.close() logging.info("asr websocket client finished")