python-scipyHow can I use Python and SciPy to read and write WAV files?

Python and SciPy can be used to read and write WAV files. The scipy.io.wavfile module provides functions for reading and writing WAV files.

Example code

from scipy.io import wavfile

# Read the wav file (samplerate, data)
samplerate, data = wavfile.read('file.wav')

# Write the wav file
wavfile.write('file_new.wav', samplerate, data)

The wavfile.read function reads a WAV file and returns the sample rate and data as a tuple. The sample rate is the number of samples per second and the data is an array of integers representing the amplitude of the sound. The wavfile.write function writes a WAV file, taking the sample rate and data as parameters.

Code explanation

• from scipy.io import wavfile: imports the wavfile module from the scipy.io package
• samplerate, data = wavfile.read('file.wav'): reads the WAV file and returns the sample rate and data as a tuple
• wavfile.write('file_new.wav', samplerate, data): writes a WAV file, taking the sample rate and data as parameters

Helpful links

• Scipy.io.wavfile documentation

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