在Python读物* .wav文件 [英] Reading *.wav files in Python

问题描述

我需要分析写在一个.wav文件的声音。对于我需要把这个文件转换成一组数字（阵列，例如）。我想我需要使用波包。但是，我不知道它究竟是如何工作的。比如我做了以下内容：

I need to analyze sound written in a .wav file. For that I need to transform this file into set of numbers (arrays, for example). I think I need to use the wave package. However, I do not know how exactly it works. For example I did the following:

import wave
w = wave.open('/usr/share/sounds/ekiga/voicemail.wav', 'r')
for i in range(w.getnframes()):
    frame = w.readframes(i)
    print frame

由于这code我期望看到声音pressure作为时间函数的结果。相反我看到很多奇怪的，神秘的符号（不是十六进制数）的。任何人可以，恳求，帮我吗？

As a result of this code I expected to see sound pressure as function of time. In contrast I see a lot of strange, mysterious symbols (which are not hexadecimal numbers). Can anybody, pleas, help me with that?

推荐答案

每的来源中， scipy.io.wavfile.read（somefile）返回两个项目的元组：第一个是采样率以每秒采样，第二个是 numpy的阵列从文件中读取的所有数据。看起来pretty好用！

Per the sources, scipy.io.wavfile.read(somefile) returns a tuple of two items: the first is the sampling rate in samples per second, the second is a numpy array with all the data read from the file. Looks pretty easy to use!

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