[linux-audio-dev] XAP: Tuning

[Frank van de Pol]

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

for a PITCH of +1.0 one octave up, -1.0 one octave down etc.
	F[pitched] = F[orig] * (2 ^ PITCH)

or, for those who prefer to specify the number of notes:
	PITCH = ((2 ^ (1/12)) ^ note)


Frank.


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