构建音频压缩器
构建一个音频压缩器.
In[1]:=

a = Import["ExampleData/rule30.wav"]
In[2]:=

AudioPlot[a, ImageSize -> Medium]
Out[2]=

计算阈值为 0.02 的信号的 RMS 振幅.
In[3]:=

amplitude = AudioBlockMap[Max[.02, Sqrt@Mean[#^2]] &, a, {.01, .005}]
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压缩信号的动态范围.
In[4]:=

AudioNormalize[a/AudioGenerator[amplitude]]
In[5]:=

AudioNormalize[a/AudioGenerator[amplitude]];
AudioPlot[%, ImageSize -> Medium]
Out[5]=
