如何将.pcm文件转换为.wav文件(脚本) [英] How to convert .pcm files to .wav files (scripting)

问题描述

我想使用Python脚本中的SOX之类的工具将.pcm文件转换为.wav文件.该工具需要跨平台兼容(Windows& Linux).有什么建议吗?

I would like to convert .pcm files to .wav files using a tool such as SOX in a Python script. The tool needs to be cross platform compatible (Windows & Linux). Any suggestions?

推荐答案

您实际上不需要此工具. Python标准库随附 wave 模块，用于编写.wav文件，当然，原始的.pcm文件也可以作为纯二进制文件打开，并且如果您需要进行列表转换不那么简单的任何简单转换，那么它们对

You don't actually need a tool for this. The Python standard library comes with the wave module for writing .wav files, and of course raw .pcm files can be just opened as plain binary files, and if you need to do any simple transformations that aren't trivial with a list comprehension, they're trivial with audioop.

例如，这是一个完整的程序，可以将立体声16位Little-endian 44.1k PCM文件转换为WAV文件:

For example, this is a complete program from converting stereo 16-bit little-endian 44.1k PCM files to WAV files:

import sys
import wave

for arg in sys.argv[1:]:
    with open(arg, 'rb') as pcmfile:
        pcmdata = pcmfile.read()
    with wave.open(arg+'.wav', 'wb') as wavfile:
        wavfile.setparams((2, 2, 44100, 0, 'NONE', 'NONE'))
        wavfile.writeframes(pcmdata)

在旧版本的Python中，您可能必须使用with contextlib.closing(wave.open(…))(或显式的open和close而不是with语句).

In older versions of Python, you may have to use with contextlib.closing(wave.open(…)) (or an explicit open and close instead of a with statement).

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