'''
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Copyright FunASR (https://github.com/alibaba-damo-academy/FunASR). All Rights
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Reserved. MIT License (https://opensource.org/licenses/MIT)
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2023 by burkliu(刘柏基) liubaiji@xverse.cn
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'''
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import logging
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import argparse
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import soundfile as sf
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import time
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import grpc
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import paraformer_pb2_grpc
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from paraformer_pb2 import Request, WavFormat, DecodeMode
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class GrpcClient:
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def __init__(self, wav_path, uri, mode):
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self.wav, self.sampling_rate = sf.read(wav_path, dtype='int16')
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self.wav_format = WavFormat.pcm
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self.audio_chunk_duration = 1000 # ms
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self.audio_chunk_size = int(self.sampling_rate * self.audio_chunk_duration / 1000)
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self.send_interval = 100 # ms
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self.mode = mode
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# connect to grpc server
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channel = grpc.insecure_channel(uri)
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self.stub = paraformer_pb2_grpc.ASRStub(channel)
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# start request
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for respond in self.stub.Recognize(self.request_iterator()):
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logging.info("[receive] mode {}, text {}, is final {}".format(
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DecodeMode.Name(respond.mode), respond.text, respond.is_final))
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def request_iterator(self, mode = DecodeMode.two_pass):
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is_first_pack = True
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is_final = False
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for start in range(0, len(self.wav), self.audio_chunk_size):
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request = Request()
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audio_chunk = self.wav[start : start + self.audio_chunk_size]
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if is_first_pack:
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is_first_pack = False
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request.sampling_rate = self.sampling_rate
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request.mode = self.mode
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request.wav_format = self.wav_format
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if request.mode == DecodeMode.two_pass or request.mode == DecodeMode.online:
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request.chunk_size.extend([5, 10, 5])
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if start + self.audio_chunk_size >= len(self.wav):
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is_final = True
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request.is_final = is_final
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request.audio_data = audio_chunk.tobytes()
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logging.info("[request] audio_data len {}, is final {}".format(
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len(request.audio_data), request.is_final)) # int16 = 2bytes
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time.sleep(self.send_interval / 1000)
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yield request
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if __name__ == '__main__':
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logging.basicConfig(filename="", format="%(asctime)s %(message)s", level=logging.INFO)
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parser = argparse.ArgumentParser()
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parser.add_argument("--host",
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type=str,
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default="127.0.0.1",
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required=False,
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help="grpc server host ip")
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parser.add_argument("--port",
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type=int,
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default=10100,
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required=False,
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help="grpc server port")
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parser.add_argument("--wav_path",
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type=str,
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required=True,
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help="audio wav path")
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args = parser.parse_args()
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for mode in [DecodeMode.offline, DecodeMode.online, DecodeMode.two_pass]:
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mode_name = DecodeMode.Name(mode)
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logging.info("[request] start requesting with mode {}".format(mode_name))
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st = time.time()
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uri = '{}:{}'.format(args.host, args.port)
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client = GrpcClient(args.wav_path, uri, mode)
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logging.info("mode {}, time pass: {}".format(mode_name, time.time() - st))
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