Re: [linux-audio-user] Advice for new users?

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Subject: Re: [linux-audio-user] Advice for new users?
From: Steve Harris (S.W.Harris_AT_ecs.soton.ac.uk)
Date: Fri Oct 11 2002 - 11:03:34 EEST

On Thu, Oct 10, 2002 at 10:01:18PM +0100, Dave Griffiths wrote:
> > > FWIW: In SSM the whole frequency range maps from -1 to 1 - so an un amplified
> > > oscillator modulating another oscillator sweeps the entire range.
> >
> > Yes, this is the problem, the CV value is linear with frequency, not
> > pitch (octaves). You define 0.0 to be a particular low frequency (say A0)
> > and then every +1.0 over that doubles the freqency, 1.0=A1, 2.0=A2 etc.
>
> I guess a couple of plugins to convert between linear and exponential would do the trick?
> I'd like to get a load of simple arithmetic plugins done actually so we could do more mathsy stuff like that. Combined with sub-patches it would be quite powerful (in a PD kind of way).

Analogue oscilator modules have linear (for FM) and expoential (for normal
modualtion) inputs. However, simple mathsy modules are useful too.

I don't know if the linear inputs have a standardised scale.

- Steve

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