MOTM

It would be very interesting to create a program that analyzes sound 
files in some other way than FFT.
I have all the FFT tools I could ask for (Kyma, Csound, Lemur, audio 
sculpt), but I'm still searching for a more pure way of creating 
additive synthesis. FFT has a way of coloring the sound (not necessarily 
in a bad way, but still..).
The Synclavier II uses 96 operator additive synthesis, where you load 
spectral sets from floppy's. Quasi sampling almost. However the sound is 
fantastic! Much more pure than any FFT software of today. Now Synclav 
might have used FFT to analyze the samples, but somehow they managed to 
keep the time domain free from wavering and flutter. A software that 
could generate tables like that would be amazing!

How about a more un orthodox way of creating additive spectra's. What if 
you would use a vocoder approach and record the rms for each band.
This requires a lot of filters, but it wouldn't have to be real time. In 
fact it's almost to prefer if it wasn't in real time, because then you 
could use better sounding filters.

Tobias




tontaub wrote:

> Hi Paul,
>
> --- In motm@yahoogroups.com, Paul Haneberg <phaneber@o...> wrote:
>
> > I am thinking of writing my own FFT analysis program for analyzing
> > wave files.  If I do I will post a link to the group.  I intend to
> > share it for free.
>
> if you do so, how are you going to deal with for instance f-modulation
> of the fundamental? I'm asking because IIRC all those programs cut the
> sampled signal into chunks of 2^n samples regardless of its frequency.
> Due to the applied windowing techniques (Hamming, Hanning, Bartlett
> etc.) the results are mathematically (more or less) correct but the
> displayed spectras are IMHO not very useful in a musical sense.
> Granted, many things are detectable by the ear but in my case I'm
> still seeking automated help to get even closer to the desired results.
>
>    ;-) Michael.
>
>
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