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prepare for proper center rate

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the correct rate is 8372Hz rather than 8363Hz
sadly this will require a compat flag so I am not making this change
effective until 0.7

issue #2347
This commit is contained in:
tildearrow 2025-02-06 02:14:21 -05:00
parent b95f9885a4
commit 9dee51851f
39 changed files with 57 additions and 46 deletions
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6
src/engine/platform/vera.cpp
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@ -158,7 +158,7 @@ int DivPlatformVERA::calcNoteFreq(int ch, int note) {
if (s->centerRate<1) {
off=65536.0;
} else {
off=65536.0*(s->centerRate/8363.0);
off=65536.0*(s->centerRate/parent->getCenterRate());
}
}
return (int)(parent->calcBaseFreq(chipClock,off,note,false));
@ -230,10 +230,10 @@ void DivPlatformVERA::tick(bool sysTick) {
DivSample* s=parent->getSample(chan[16].pcm.sample);
lastCenterRate=s->centerRate;
if (s->centerRate>=1) {
off=65536.0*(s->centerRate/8363.0);
off=65536.0*(s->centerRate/parent->getCenterRate());
}
} else if (lastCenterRate>=1) {
off=65536.0*(lastCenterRate/8363.0);
off=65536.0*(lastCenterRate/parent->getCenterRate());
}
chan[16].freq=parent->calcFreq(chan[16].baseFreq,chan[16].pitch,chan[16].fixedArp?chan[16].baseNoteOverride:chan[16].arpOff,chan[16].fixedArp,false,8,chan[16].pitch2,chipClock,off);
if (chan[16].freq>128) chan[16].freq=128;