How can Python read a wav file?

You can use the wave module in Python to read wav files.

First, we need to import the wave module.

import wave

Next, the wave module’s open function can be used to open a wav file and return a Wave_read object to read the file’s content.

wav = wave.open('file.wav', 'rb')

In this case, ‘file.wav’ is the name of the WAV file to be read, and ‘rb’ indicates that the file should be opened in binary mode.

We can obtain information about a WAV file, such as its sampling rate, number of channels, and total frames, by using methods from the Wave_read object.

sample_rate = wav.getframerate()
num_channels = wav.getnchannels()
num_frames = wav.getnframes()

Next, you can use the readframes method of the Wave_read object to read the audio data of a wav file, which returns a byte string.

data = wav.readframes(num_frames)

Finally, remember to close the Wave_read object.

wav.close()

Complete code example for reading a wav file:

import wave

wav = wave.open('file.wav', 'rb')
sample_rate = wav.getframerate()
num_channels = wav.getnchannels()
num_frames = wav.getnframes()
data = wav.readframes(num_frames)
wav.close()

It is important to note that the audio data retrieved is returned in the form of a byte string. If you need to convert it into numerical audio data, you can use the numpy library for processing.