参考：
https://github.com/snakers4/silero-vad/blob/master/examples/pyaudio-streaming/pyaudio-streaming-examples.ipynb

https://www.vad.ricky0123.com/
https://blog.csdn.net/weixin_42357472/article/details/137394056

### silero-vad模型离线下载地址
https://github.com/snakers4/silero-vad/zipball/master

代码

import torch
torch.set_num_threads(1)
import pyaudio
import wa