[linux-audio-dev] XAP: Tuning

Steve Harris S.W.Harris at ecs.soton.ac.uk
Thu Dec 19 15:44:00 UTC 2002


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. It
would be good to let the host provide the figure and the instruments can
just pick it up. There may be reasons for particular values in particular
hosts or styles. We could recommend Concert A as a default, as thats how
most synths are tuned in my experience.

Modular synth style modules generally ignore the global tuning anyway.
They have there own 0.0v -> Hz mapping, set via a dial.

I dont see any point in specifying it as middle C.

- Steve 



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