kongdeqiang
2026-03-13 28ccfbfc51068a663a80764e14074df5edf2b5ba
examples/industrial_data_pretraining/paraformer_streaming/demo.py
@@ -3,36 +3,44 @@
# Copyright FunASR (https://github.com/alibaba-damo-academy/FunASR). All Rights Reserved.
#  MIT License  (https://opensource.org/licenses/MIT)
# from funasr import AutoModel
#
# model = AutoModel(model="damo/speech_paraformer-large_asr_nat-zh-cn-16k-common-vocab8404-pytorch", model_revison="v2.0.0")
#
# res = model(input="https://isv-data.oss-cn-hangzhou.aliyuncs.com/ics/MaaS/ASR/test_audio/asr_example_zh.wav")
# print(res)
import os
from funasr import AutoModel
from funasr import AutoFrontend
chunk_size = [0, 10, 5]  # [0, 10, 5] 600ms, [0, 8, 4] 480ms
encoder_chunk_look_back = 4  # number of chunks to lookback for encoder self-attention
decoder_chunk_look_back = 1  # number of encoder chunks to lookback for decoder cross-attention
model = AutoModel(model="iic/speech_paraformer_asr_nat-zh-cn-16k-common-vocab8404-online")
frontend = AutoFrontend(model="/Users/zhifu/Downloads/modelscope_models/speech_paraformer-large_asr_nat-zh-cn-16k-common-vocab8404-online", model_revison="v2.0.0")
wav_file = os.path.join(model.model_path, "example/asr_example.wav")
res = model.generate(
    input=wav_file,
    chunk_size=chunk_size,
    encoder_chunk_look_back=encoder_chunk_look_back,
    decoder_chunk_look_back=decoder_chunk_look_back,
)
print(res)
import soundfile
speech, sample_rate = soundfile.read("/Users/zhifu/Downloads/modelscope_models/speech_paraformer-large_asr_nat-zh-cn-16k-common-vocab8404-online/example/asr_example.wav")
chunk_size = [0, 10, 5] #[0, 10, 5] 600ms, [0, 8, 4] 480ms
chunk_stride = chunk_size[1] * 960 # 600ms、480ms
# first chunk, 600ms
wav_file = os.path.join(model.model_path, "example/asr_example.wav")
speech, sample_rate = soundfile.read(wav_file)
chunk_stride = chunk_size[1] * 960  # 600ms、480ms
cache = {}
for i in range(int(len((speech)-1)/chunk_stride+1)):
    speech_chunk = speech[i*chunk_stride:(i+1)*chunk_stride]
    fbanks = frontend(input=speech_chunk,
                      batch_size=2,
                      cache=cache)
# for batch_idx, fbank_dict in enumerate(fbanks):
#    res = model(**fbank_dict)
#    print(res)
total_chunk_num = int(len((speech) - 1) / chunk_stride + 1)
for i in range(total_chunk_num):
    speech_chunk = speech[i * chunk_stride : (i + 1) * chunk_stride]
    is_final = i == total_chunk_num - 1
    res = model.generate(
        input=speech_chunk,
        cache=cache,
        is_final=is_final,
        chunk_size=chunk_size,
        encoder_chunk_look_back=encoder_chunk_look_back,
        decoder_chunk_look_back=decoder_chunk_look_back,
    )
    print(res)