在Python中用24位数据从立体声波形文件wave中读取单个通道的数据

Question

我想读左边和右边的频道。在

 import wave
 origAudio = wave.open("6980.wav","r")
 frameRate = origAudio.getframerate()
 nChannels = origAudio.getnchannels()
 sampWidth = origAudio.getsampwidth()
 nbframe=origAudio.getnframes()
 da = np.fromstring(origAudio.readframes(48000), dtype=np.int16)
 origAudio.getparams()

参数

^{pr2}$

现在我想用24位数据中的wave文件分离左右声道

Answer 1

您可以使用^{}，这是一个小模块，我用numpy数组读写WAV文件。在您的情况下：

import wavio

wav = wavio.read("6980.wav")

# wav.data is the numpy array of samples.
# wav.rate is the sampling rate.
# wav.sampwidth is the sample width, in bytes.  For a 24 bit file,
# wav.sampwdith is 3.

left_channel = wav.data[:, 0]
right_channel = wav.data[:, 1]

^{} is on PyPi，源代码在github上的https://github.com/WarrenWeckesser/wavio。在