Subject: Re: [linux-audio-dev] Moog VCF in SpiralSynthModular
From: Dr. Matthias Nagorni (mana_AT_suse.de)
Date: Fri May 24 2002 - 19:55:51 EEST
On Fri, 24 May 2002, Steve Harris wrote:
> The right choice imho. More to the point, you can coonect control or audio
> output to audio inputs, so you can do what you'de like with an audio rate
> resonace/cutoff input.
I'm currently implementing the filters with audio ports for both frequency
and resonance. An audio port for dBgain might be useful for the peaking EQ
as well. There will be additional control ports for frequency offset,
resonance offset and a frequency pitch factor [-2..2].
In a modular synth not every port has to be connected to a CV. So
I plan to allow that frequency and resonance audio ports may be
left unconnected. In this case they should be initialized with a NULL
pointer. The run method then checks for NULL pointers and executes
different loops.
Matthias
-- Dr. Matthias Nagorni SuSE GmbH Deutschherrnstr. 15-19 phone: +49 911 74053375 D - 90429 Nuernberg fax : +49 911 74053483
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