QRe: [sdiy] Reprinting Electronotes

[Tim Ressel]

Yo,

My first attemps were spaced about 6 per octave from
175 to 8K. Perhaps the fact that filters fell on
octave bounds was causing trouble. I tried detuning
slightly with no effect.

--tr

--- "Alfred E. Neumann" <gnurg14 at hotmail.com> wrote:
> Was you privious 36 fiter spread with equal # hz
> between the bands? 
> Theo
> 
> From: Tim Ressel <madhun2001 at yahoo.com>
> 
> 
> > 
> > --- jbv <jbv.silences at club-internet.fr> wrote:
> > > As for "frequencies spaced at a ratio of
> 2.1^(1/5)",
> > > how many bands per
> > > octave does that mean ? Three ? Five ?
> > > And what are the practical frequency limits
> (both
> > > high & low ends) for
> > > such a module ? 100 Hz to 10 KHz ?
> > 
> > I just changed my CSound filter bank to 30 filters
> > with the 2.1^(1/5) spacing and Q=25. Now I am
> getting
> > the results I was expecting. I don't know why this
> > should be different that what I had before, which
> was
> > 36 filters from 100 to 8K. But it works much
> better.
> > 
> > Now that I got past that stumbling block, it is
> time
> > for the next stage; a DSP filter bank module.
> > 
> > --tr
> > 
> 


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