On Mon, Dec 8, 2008 at 10:20 PM, manatlan <[EMAIL PROTECTED]> wrote: > I'd like to make a kind of "spectrum analyzer" ... > Which should display "bars" according bands of frequencies ... in real > time... > > Is anybody know an audio processing lib in python for that ?
Hi, It is possible to use python for audio processing: I am doing in PhD in audio signal processing, and I mostly use python for my research: audio file IO, relatively advanced processing, display. You will need scientific packages to do the processing: numpy at minimum, to give you an array class ala matlab, for fast vector operations, and scipy to give you more tools (filtering, multi-dimensional fft, etc...). Now, it may not be usable depending on your application: if you know matlab, and your application is doable in matlab, it is doable in python + numpy/scipy. You can see an example of real-time spectrogram with the whole scientific python stack here: http://code.enthought.com/projects/chaco/gallery.php (last example at the bottom) But it may not work out depending on what you mean by real-time: if you use the term precisely, in its computer-science meaning (time-bound process), then it will be difficult if not impossible, by the very nature of python. You need a very precise control of resources in that context, which python does not give. David -- http://mail.python.org/mailman/listinfo/python-list
