[PD] Waveform Analysis?

[vanDongen/Gilcher]

Actually that looks more like a audio/video track database 
description/querying method. The question was more about how to get analysis 
information from an audio stream. Something I am always interested in as 
well.

Besides the analytical tools with orthonormal function-spaces (fourier etc.) I 
am also looking into classification based on the geometric/topological 
properties of the wave. 
Things like the fractal dimension of the waveform over either a short window, 
like fft's, or on longer segments.
They use this kind of stuff to analyse heart-rythms f.i. 

It is not working yet, but it seems nice for my purposes because the results 
are consistent but counter intuitive. 
Remain the problems of identifying phrases and segments. And the biggest 
problem for me, is that computer-analysis is almost always after the fact, 
the note(beginning) or  the phrase.  The human ear is much better at hitting 
a running target. 

Gerard


On Thursday 15 April 2004 15:32, Hans-Christoph Steiner wrote:
>
> musicbrainz might be interesting to you.  Its basically a method of
> fingerprinting audio so that it can be identified even in different
> bitrates, recordings, etc.  http://www.musicbrainz.org/MM/  There was
> some other similar software too, but I can't remember the name now.

-- 
electronic & acoustic musics-- http://www.xs4all.nl/~gml