Discrete Wavelet Transforms

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2 total messages Started by BRYAN GARNETT COPE Thu, 28 Jan 1993 18:23

#2145

Author: BRYAN GARNETT COPE
Date: Thu, 28 Jan 1993 18:23

18 lines
1174 bytes

I am interested in obtaining some good information about the theory and
application of Wavelets. In particular, I wish to design an algorithm which
will be based on the Discrete Wavelet Transform (DWT) to be implemented
on a DSP based subsystem. I would like to find some articles or source
code which describes DWT algorithms or specific applications of the DWT to
audio signals only. I have seen a lot of info. on 2-dimensional DWT for
seismic research, etc, but that's not what I want. Strictly audio 
applications. 

If anyone could point me to some good information or even better, source 
code which implements the DWT, I would be greatly appreciative!!!!!!!

Thanx in advance...

Bryan Cope
bgc@moose.ncsu.edu
bryanc@ralvm29.vnet.ibm.com
(MWave Hardware developer)

Re: Discrete Wavelet Transforms

#2152

Author: jargast
Date: Thu, 28 Jan 1993 23:38

45 lines
2056 bytes

In article <1993Jan28.182332.25039@ncsu.edu>, bgc@eos.ncsu.edu (BRYAN GARNETT COPE) writes:
> I am interested in obtaining some good information about the theory and
> application of Wavelets. In particular, I wish to design an algorithm which
> will be based on the Discrete Wavelet Transform (DWT) to be implemented
> on a DSP based subsystem. I would like to find some articles or source
> code which describes DWT algorithms or specific applications of the DWT to
> audio signals only. I have seen a lot of info. on 2-dimensional DWT for
> seismic research, etc, but that's not what I want. Strictly audio 
> applications. 
> 
> If anyone could point me to some good information or even better, source 
> code which implements the DWT, I would be greatly appreciative!!!!!!!
> 
> Thanx in advance...
> 
> Bryan Cope
> bgc@moose.ncsu.edu
> bryanc@ralvm29.vnet.ibm.com
> (MWave Hardware developer)
> 
>
Bryan-

Here is a list of good articles, the best being Strang's (IMHO) as far
as implementation.

Daubechies, I., "The Wavelet Transform, Time-Frequency Localization and
    Signal Analysis", IEEE Trans. on Information Theory, v36, n5, 
    Sep, 1990 pp961-1005

Kronland-Martinet, R., "The wavelet Transform for Analysis, Synthesis,
    and Processing of Speech and Music Sounds", Computer Music Journal,
    v12, n4, Winter 1988, pp11-20

Kronland-Martinet, R., "Analysis of Sound Patterns Through Wavelet
    Transforms", International Journal of Pattern Recognition and
    Artificial Intelligence, v1, n2, 1987, pp273-302

Strang, G., "Wavelets and Dilation Equations: A Brief Introduction",
    SIAM, v31, n4, 1989, p614-627


Jeff Argast
jargast@oz.bmd.trw.com

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