Posted By
Spektro
on 2014-11-11
14:16:42
 |  Re: Mixing raster interrupt with timer interrupt?
I was using timer 3. I changed to timer 1 and made the playback routine simpler. (The timer interrupt is the only interrupt I'm using.)
The sample I'm playing is a pulse waveform sample, so I'm writing just 0s and 8s to the volume register. This is how it sounds:
https://www.dropbox.com/s/kmohleicgvcfj30/220hz.wav?dl=0
https://www.dropbox.com/s/xgk4xf2kxclnz7u/higher.wav?dl=0
The higher the playback rate, the more the sound distorts.
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