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games/nes: reduce volume, causes overflow and confuses ac97

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This commit is contained in:
aiju 2014-09-11 11:20:57 +02:00
parent 96b5d96b90
commit d63850570c
1 changed files with 3 additions and 2 deletions
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5
sys/src/games/nes/apu.c
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@ -225,14 +225,15 @@ void
audiosample(void) audiosample(void)
{ {
double d; double d;
static int i;
if(sbufp == nil) if(sbufp == nil)
return; return;
d = 95.88 / (8128.0 / (0.01 + pulse(0) + pulse(1)) + 100); d = 95.88 / (8128.0 / (0.01 + pulse(0) + pulse(1)) + 100);
d += 159.79 / (1.0 / (0.01 + tri()/8227.0 + noise()/12241.0 + dmc()/22638.0) + 100.0); d += 159.79 / (1.0 / (0.01 + tri()/8227.0 + noise()/12241.0 + dmc()/22638.0) + 100.0);
if(sbufp < sbuf + nelem(sbuf) - 1){ if(sbufp < sbuf + nelem(sbuf) - 1){
*sbufp++ = d * 20000; *sbufp++ = d * 10000;
*sbufp++ = d * 20000; *sbufp++ = d * 10000;
} }
} }