For Wavelets, there's a good book geared for the student Barbara Hubbard.
Very straight forward, good place to start,... as opposed to a book I
got through IEEE years ago (which was overly involved beyond practicality).
Check out Barbara Hubbard's book on Wavelets.

-Partev


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--- anja.r.hofmann@web.de wrote:

From: Anja Hofmann 
To: csound@lists.bath.ac.uk
Subject: [Csnd] Re: wavelets
Date: Mon, 28 Jun 2010 07:15:40 +0200 (CEST)

Hi!
My background is actually in computational linguistics/phonetics and I discovered csound when I wanted to learn more about signal processing.
# the only thing i could find was the wavelet example from the csound-book, but that somehow didn't work 
# on my system.
Replacing "itablew" with "tableiw" produced working csound code for me.

# can someone explain why wavelet is so little used within audio-dsp compared fourier? 
# i did not understand the math behind wt, but according to descriptions of its approach it should deliver better # results than fft, at least for things like streching/pitching. is that right?
Looking for relevant documents, I found the following ones 
- Florian Bömers, Wavelets in real time digital audio processing, Analysis and sample implementations
http://www.boemers.de/personal/thesis.pdf
(see p. 86 there on possible problems and limitations)
- Jeremy John Wells, Real-Time Spectral Modelling of Audio for Creative Sound Transformation 
http://jezwells.org/Jez_Wells_PhD.pdf
- Julius O. Smith, Spectral Audio Processing
https://ccrma.stanford.edu/~jos/sasp/sasp.html
also has a section on wavelets
Hope this helps.
Anja Hofmann
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