What is the easiest way to read wav-files using Python [summary]?
- by Roman
I want to use Python to access a wav-file and write its content in a form which allows me to analyze it (let's say arrays).
I heard that "audiolab" is a suitable tool for that (it transforms numpy arrays into wav and vica versa).
I have installed the "audiolab" but I had a problem with the version of numpy (I could not "from numpy.testing import Tester"). I had 1.1.1. version of numpy.
I have installed a newer version on numpy (1.4.0). But then I got a new set of errors:
Traceback (most recent call last):
File "test.py", line 7, in
import scikits.audiolab
File "/usr/lib/python2.5/site-packages/scikits/audiolab/init.py", line 25, in
from pysndfile import formatinfo, sndfile
File "/usr/lib/python2.5/site-packages/scikits/audiolab/pysndfile/init.py", line 1, in
from _sndfile import Sndfile, Format, available_file_formats, available_encodings
File "numpy.pxd", line 30, in scikits.audiolab.pysndfile._sndfile (scikits/audiolab/pysndfile/_sndfile.c:9632)
ValueError: numpy.dtype does not appear to be the correct type object
I gave up to use audiolab and thought that I can use "wave" package to read in a wav-file. I asked a question about that but people recommended to use scipy instead. OK, I decided to focus on scipy (I have 0.6.0. version).
But when I tried to do the following:
from scipy.io import wavfile
x = wavfile.read('/usr/share/sounds/purple/receive.wav')
I get the following:
Traceback (most recent call last):
File "test3.py", line 4, in <module>
from scipy.io import wavfile
File "/usr/lib/python2.5/site-packages/scipy/io/__init__.py", line 23, in <module>
from numpy.testing import NumpyTest
ImportError: cannot import name NumpyTest
So, I gave up to use scipy. Can I use just wave package? I do not need much. I just need to have content of wav-file in human readable format and than I will figure out what to do with that.
