[sdiy] AVR Synth (pitch error)

[Jaroslaw Ziembicki]

----- Original Message ----- 
From: "Gabriel Lindeborg" <gabriel at lindeborg.org>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Saturday, June 18, 2005 11:25 AM
Subject: Re: [sdiy] AVR Synth operational


> Mine is 54 cents flat over the whole key range. But all calculations 
> seems to be right and w. the pitchbend I can get it to within a more 
> reasonable +/- 5 cents.

Laurie Biddulph and me will try to find the reason why the frequency
generated is a bit too low.
The frequency is absolutely correct in my prototype that is built with the
ATmega8535.
I suspect that there is a difference in timer programming in the ATmega16.
Therefore the sampling frequency is a bit too low.

Be patient, guys.

Regards, Jarek
www.jarek.synth.net