[linux-audio-dev] XAP: Tuning

Steve Harris S.W.Harris at ecs.soton.ac.uk
Fri Dec 20 06:56:00 UTC 2002


On Thu, Dec 19, 2002 at 11:04:46 +0100, David Olofson wrote:
> On Thursday 19 December 2002 23.01, Frank van de Pol wrote:
> > On Thu, Dec 19, 2002 at 08:01:57PM +0100, David Olofson wrote:
> > > What frequency does PITCH 0.0 correspond to?
> >
> > unadjusted pitch, A4 = 440 Hz
> 
> Yeah, that was my first thought. Make 0.0 <==> 440 Hz, period.
> 
> It has been suggested that it be a "system variable" or something, 
> but since we have linear pitch control anyway, you may as will 
> implement it as an optional TUNING control input on the plugins that 
> care. (Sequencers with direct PITCH output and scale converters would 
> care.)

No, not optional, mandatory. I think this would be a much easier way to
ensure that global tuning works than having the sequencers/midi
converters skew thier note->pitch outputs.

- Steve



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