Introduction to Audio in Python

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## Choosing only the first half second of audio

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# the new number of samples is the

# (duration times sampling frequency)

new_nsamples = 0.5 * fs

# creating the new samples array

new_samples = samples[0:new_nsamples]

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## Writing the shorter audio to a new file

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# create a name for the new file

new_filename = 'output_file.wav'

# Create a Sndfile instance for writing a mono wav file @ 44100 Hz

format = audiolab.Format('wav')

f = audiolab.Sndfile(new_filename, 'w', format, 1, 44100)

# Write out the shorter audio file

f.write_frames(new_samples)

# close the audio file

f.close()