ODP: AW: Harmonix content formula

[Roman Sowa]

I stayed quiet on this subject, cuz I've seen many posts describing it
in detail. But when you say FFT is a headache I have to dissagree.
I'd say it is fun (see how dorky I am). You could probably find many
examples
of software (I mean source code) calculating FFT, or even write your own
when you learn the FFT itself. It is rather simple and logical IMHO.
And FFT examples for DSPs are just laying around everywhere.
If anyone is interested in C code for it, I'd be pleased to share with you.
Not too efficient code, but works (for Windoze).
BTW, I've heard of strange ppl doing FFT in hardware (8-O
using FPGA chips. It was also one of the project in my University,
but I don't know if they succeded.

Now I have dangerously silly idea - DCT in analog hardware:
(Discrete Cosine Transform - simplifed version of Discrete Fourier
Transform)
say, 32 sine oscilators of harmonic frequencies (or not harmonic - why stick
to the original?), 32 multipliers (ringmods) multiplying input signal with
each of
32 sine oscs (or one muxed), 32 envelope followers and we have harmonic
content output.

Roman

> -----Oryginalna wiadomość-----
> Od:	Paul Maddox [SMTP:space_banana at hotmail.com]
> Wysłano:	8 czerwca 1999 22:49
> Do:	synth-diy at mailhost.bpa.nl
> Temat:	Re: AW: Harmonix content formula
> 
> All,
> 
> 
>   Well thanks to MC and JH for their replies... I dont think Im going to
> be 
> anything like FFT for a while... looks and sounds like headache, BIG TIME!
> 
>    Thanks for the info
>    Paul
> 
> 
>