Software Support > GroovyMAME

Any ideas why using d3d instead of ddraw causes sound to lose pitch?

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jimmy2x2x:
running gm .145, xp x64, core2duo 2.4ghz, 2gb ram, 4890

all games run fine in ddraw, but lose sound pitch in d3d (wanted d3d for hlsl effects)

very easy to hear when playing rtype

any ideas?

cheers

Calamity:
Since v0.145 the sound is automatically tied to emulation speed, so a drop in pitch means a slow-down in emulation. Check the game's speed is 100%.

jimmy2x2x:
rock solid in ddraw, but fluctuates in d3d about 95% to 105% like its not syncing properly

Calamity:
It shouldn't fluctuate  :(
Does it happen even if hlsl is not enabled?

jimmy2x2x:
yes, if I leave hlsl off and just change ddraw to d3d it fluctuates

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