[linux-audio-dev] XAP: Tuning

Steve Harris S.W.Harris at ecs.soton.ac.uk
Fri Dec 20 06:55:01 UTC 2002


On Thu, Dec 19, 2002 at 10:21:58 +0100, David Olofson wrote:
> On Thursday 19 December 2002 21.38, Steve Harris wrote:
> > On Thu, Dec 19, 2002 at 08:01:57 +0100, David Olofson wrote:
> > > What frequency does PITCH 0.0 correspond to?
> > >
> > > I assume this should be a fixed value, as "system finetune" can
> > > be implemented in other ways. No need to have all synths keep
> > > track of yet another parameter to convert PITCH into whatever
> > > they need.
> >
> > I think that is actually a good way of implementing global tuning.
> 
> Yeah, that's what I was thinking as well, but I don't quite like the 
> extra "+ global_tuning" whenever you're doing pitch->frequency 
> conversion... Especially since you might as well have a "TUNING" 
> control on sequencers, scale converters or whatever you're using.

Yeah, I guess it would be ok to have it as a control.
 
> > Modular synth style modules generally ignore the global tuning
> > anyway. They have there own 0.0v -> Hz mapping, set via a dial.
> 
> Well, we don't need to deliberately disconnect some kinds of plugins 
> from global tuning, do we? ;-)

Well, no, thats why I said 'ignore'.

- Steve



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