Python WAV如何获得频率量？
[英]Python wav how to get volume of frequency?
问题描述
I want to make a music (wav) visualizer in pyton. 
我想在pyton中制作音乐（wav）可视化程序。
I have code for get volume and frequency, but my output is only: ex. 我有获取音量和频率的代码，但我的输出仅为：例如。 440hz, 30 db. 440hz，30分贝。
I want to see (in one time): ex. 我想看一次（例如）。
100hz, 5db 100Hz，5db
400hz, 20db 400Hz，20db
800hz, 30db 800Hz，30db
1600hz, 20db 1600Hz，20db
4000hz, 2db 4000Hz，2db
How to make it? 怎么做？
1 个解决方案
解决方案1
0 已采纳 2017-10-20 18:24:20
I would need more details to be sure, but I believe that some sort of fft algorithm would be required. 我需要确定更多细节，但是我认为将需要某种fft算法。
Perhaps try something from numpy.fft or from scipy fft implementations . 也许尝试从numpy.fft或scipy fft实现中进行尝试。
Both of those would need some love to convert amplitude to dB, but it seems possible. 两者都需要一些爱才能将幅度转换为dB，但似乎是可能的。
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