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View Full Version : Play buffer simultaneously



Harry Hunt
04-11-2003, 11:42 AM
Howdy! This may sound like a stupid question, but I'll ask it anyway. I have a classic DirectSound setup with a number of buffers. One of them is a "click" kind of sound that I play whenever the player mouse-overs over a button. Now this sound is played a lot because there are a lot of buttons that are close to each other. So it often happens that "play" is executed for a buffer that is still playing. Whenever that happens, the call to "play" is simply ignored and I don't hear anything. If I call "stop" first and then "play" it works fine but the sound effect are chopped of.
So my question is: How do I play the same sound buffer again and again without having to stop it when it's still playing?

Ultra
04-11-2003, 10:40 PM
Aaarghh! I really need to brush up on my DirectSound knownledge again.
Can't you have two (or more?) buffers and play the second click in the second buffer?

Harry Hunt
05-11-2003, 05:46 AM
Yeah, that's what I ended up doing. Thanks a lot anyway!
Didn't think there was no way to play the same buffer several times simultaneously but i guess that's just how it is...

WILL
07-11-2003, 09:20 AM
Hmm... this idea may sound a bit exccessive, but could you not 'mix in' the click sound right into the buffer? Or have a pre-buffer that does this mixing? You may end up using some pretty low-level(in-line ASM) to get the job done fast, but it may allow you to keep to the one sound buffer.

Only question is, can it be done fast enough?

erikphilips
07-11-2003, 11:59 PM
I was just researching this myself! Since DirectSound can be hardware accelerated, it is fastest to create a buffer each time you want to play a sound because directsound will just send the sound into the soundcard for mixing if the soundcard supports it. Less CPU = Good.

Clootie
09-11-2003, 01:20 PM
Less CPU work == More soundcard driver bugs :lol: