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在移动端如何应用Transformers进行语音识别?

2025-08-23 475

Mobile Adaptation Program

实现移动端语音识别的关键技术路径:

  • Model streamlining:选用蒸馏版模型如whisper-small
    pipeline("automatic-speech-recognition", model="openai/whisper-small")
  • ONNX转换:导出为移动友好格式
    from transformers import convert_graph_to_onnx
    convert_graph_to_onnx.convert(model_name, output_path)
  • streaming:配置Kyutai-STT的chunk_length参数
    asr = pipeline(..., chunk_length_s=30)

实际效果:经过量化的whisper-small模型在iOS设备上可实现200ms延迟的实时转录,模型尺寸仅150MB。

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