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Poor DS sound quality with AGP 3d card and bus mastering

Graphics and GPU Programming Programming

Started by GameDev.net October 21, 1999 05:25 PM

0 comments, last by GameDev.net 24 years, 8 months ago

Anonymous

October 21, 1999 05:25 PM

I have just upgraded my graphics card to a Matrox G400 AGP. If i enable bus mastering on the driver, any scrolling or moving of windows causes any directsound application to stutter. Sound is fine in games, except in Quake3, where the sound stutters terribly.

All these problems go away when I disable bus mastering.

If someone could tell me the technical reason for this happening it would be great as it is causing real compatibility problems for the software I am writing.