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I need to analyze sound written in a .wav file. For that I need to transform this file into set of numbers (arrays, for example). I think I need to use the wave package. However, I do not know how exactly it works. For example I did the following:
import wave w = wave.open('/usr/share/sounds/ekiga/voicemail.wav', 'r') for i in range(w.getnframes()): frame = w.readframes(i) print frame As a result of this code I expected to see sound pressure as function of time. In contrast I see a lot of strange, mysterious symbols (which are not hexadecimal numbers). Can anybody, pleas, help me with that?
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The wave module in Python's standard library is an easy interface to the audio WAV format. The functions in this module can write audio data in raw format to a file like object and read the attributes of a WAV file.
Windows and Mac are both capable of opening WAV files. For Windows, if you double-click a WAV file, it will open using Windows Media Player. For Mac, if you double-click a WAV, it will open using iTunes or Quicktime.
Per the documentation, scipy.io.wavfile.read(somefile) returns a tuple of two items: the first is the sampling rate in samples per second, the second is a numpy array with all the data read from the file:
from scipy.io import wavfile samplerate, data = wavfile.read('./output/audio.wav') If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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