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Bi-N-Tic 'minimum' filter

Bi-N-Tic 'minimum' filter

2005-05-08 by Jeffrey Pontius

To the current Bi-N-Tic experts,
What is the 'minimum' complement necessary for implementing the 'filter'
part (if I understand what the Bi-N-Tic is about)?

I'm assuming that the FReq, Damping, Bandwidth controls, and IN, OUT are
a minimum set (?). For example, is the Fine Tune necessary?

Once I have the minimum set necessary, I can expand on that set if I
choose to.

Thanks, Jeff

Re: Bi-N-Tic 'minimum' filter

2005-05-08 by Jeff Brown

> What is the 'minimum' complement necessary for implementing the 'filter'
> part (if I understand what the Bi-N-Tic is about)?
>
> I'm assuming that the FReq, Damping, Bandwidth controls, and IN, OUT are
> a minimum set (?). For example, is the Fine Tune necessary?
>
Your assumption is correct, but you really do need the Fine Tune!
Think of it as more of a VCO than a filter.

BTW, I just uploaded another sound file (MP3 this time) and the only
knob I twiddled was the fine tune. I fed the signal input with a VCO
(squarewave) and the internal signal (Q1 pad) into IN2. Both Filter
and VCO frequency controlled by a sequencer (a CGS07/CVS42) so that
they are tracking. Bandwith set maximum, damping set to minimum. I
slowly swept the Fine Tune upward, and switched the internal signal to
Q2 abd Q3 at the very end.

Re: Bi-N-Tic 'minimum' filter

2005-05-09 by jpontmotm

--- In cgs_synth@yahoogroups.com, "Jeff Brown" <guitaricon@c...> wrote:
Show quoted textHide quoted text
>
> BTW, I just uploaded another sound file (MP3 this time) and the only
> knob I twiddled was the fine tune.

Nice example, thanks. Gives me a good idea of the usefulness of the
Fine Tune control. Appears that this 'filter' has a lot of possibilities.

Jeff

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