CPU usage problem with the Windows sound mapper

user222 · Post by **user222** » Sun Feb 13, 2005 10:40 am

Leave ZSNES running in the background, then play an audio file using another application, the CPU usage of ZSNES will increase. The CPU usage of ZSNES goes back down when the sound mapper is not simultaneously used by another application.

Noxious Ninja · Post by **Noxious Ninja** » Sun Feb 13, 2005 11:03 pm

Is this a problem with ZSNES or Windows?

user222 · Post by **user222** » Mon Feb 14, 2005 7:35 am

Noxious Ninja wrote:Is this a problem with ZSNES or Windows?

Playing sound in other applications should not increase the CPU usage of the ZSNES process. I think it's a DirectSound problem in ZSNES. By the way, if you're using a sound card that doesn't support DirectSound, you won't even be able to play sounds in other applications. I wonder why ZSNES takes exclusive access of the sound mapper, even when there's no game is running, or when the emulation is paused

Post by **Nach** » Mon Feb 14, 2005 10:14 am

Sure it should. ZSNES now how to output sound in a friendly way instead of taking full control of the sound card.

You might also want to play with the primary buffer setting.