基频检测
计算一段录音的基频.
In[1]:=
a = ExampleData[{"Audio", "PianoScale"}, "Audio"]Out[1]=
In[2]:=
f0 = AudioLocalMeasurements[a, "FundamentalFrequency"];
ListLinePlot[f0, ImageSize -> Medium]Out[2]=
将结果应用于 ColorFunction 并代入 AudioPlot 使用.
In[3]:=
f0 = Rescale[TimeSeries[DeleteMissing[f0 // Normal, 1, 2]]]; Quiet@
AudioPlot[a,
ColorFunction -> Function[{x, y}, ColorData["SolarColors"][f0[x]]],
ImageSize -> Medium]Out[3]=
