有没有办法找出wav文件是否未压缩pcm？
[英]Is there a way to find out if a wav file is uncompressed pcm or not?
问题描述
I'm currently programming a game with an engine that uses python as a base. 
我目前正在使用以python为基础的引擎来编写游戏。 Now I've stumbled upon the problem that I'm trying to play .wav files. 现在，我偶然发现了要播放.wav文件的问题。 As it does not work I looked into the routines there and found that it can only play uncompressed .wav files. 由于它不起作用，我查看了那里的例程，发现它只能播放未压缩的.wav文件。
Now my question is is (as I didn't find anything there on how to see it) there any way to see if a .wav file is compressed or uncompressed? 现在我的问题是（因为我没有找到任何有关如何查看它的信息）是否有任何方法可以查看.wav文件是否已压缩或未压缩？ (currently it is only a guess that it is compressed but can't make sure) （目前只能猜测它已被压缩，但不能确定）
1 个解决方案
解决方案1
0 已采纳 2015-12-27 15:30:12
You can read the file header, byte 20-22 (PCM): Values other than 1 indicate some form of compression. 您可以读取文件头的字节20-22（PCM）：1以外的值表示某种形式的压缩。 (details here: http://soundfile.sapp.org/doc/WaveFormat/ ). （详细信息在这里： http : //soundfile.sapp.org/doc/WaveFormat/ ）。
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