flycast icon indicating copy to clipboard operation
flycast copied to clipboard

Published 20 hours ago • verified publisher icon flyinghead

Golem no Maigo - Noise occurs when selecting a stage

Open kihato opened this issue 1 year ago • 2 comments

Platform / OS / Hardware: Windows11 / i7-10700F / GTX 1660 SUPER

Github hash: d3a3cab

Selecting any stage will cause noise. SaveState

kihato avatar Apr 27 '23 11:04 kihato

The game plays a sound when a stage is selected then starts transferring audio data to audio RAM, overwriting the currently playing sound and producing this white noise. More investigation is needed to figure out why it's doing this.

flyinghead avatar Oct 15 '23 10:10 flyinghead

It looks like a GD-ROM timing issue: the audio data written to audio RAM is first read from the GD-ROM. By artificially slowing down the GD-ROM transfer speed, I can almost eliminate the white noise. It's likely that adding spin up time and/or seek time would make the issue go away.

flyinghead avatar Oct 26 '23 08:10 flyinghead