SOX示例
https://ngbala6.medium.com/audio-processing-and-remove-silence-using-python-a7fe1552007a
https://www.cxyzjd.com/article/weixin_32393347/104555238
Audio Split 基于双门限法的语音端点检测及语音分割
https://github.com/zlzhang1124/voice_activity_detection
pydub
https://blog.csdn.net/wangqianqianya/article/details/89605298
https://wqian.net/blog/2018/1107-split-sound-index.html