Hi Ken, Yes, if you know what you are doing you can simulate a 3d effect simply by using some calculations to position the sound in the stereo field and to have the volume roll off correctly. A couple of years ago I was looking at writing the Genesis 3D engine in Java. The only problem was that the Java Sound API only has very generic effects such as panning and volume. So what I did is I wrote my own 3d audio wrapper that calculated the position of the sound and set the stereo pan to position the sound in relation to the player. I used a simple logarithmic function to calculate the volume and had it roll off more smoothly/correctly. I have to say the 3d effect wasn’t bad and that was using just simpley stereo pan and gain controls. However, that is rather simplistic compared to what something like XAudio2 can do.
With XAudio2 you can actually set the volume for each channel/speaker individually, and fine tune the 3d effect much more precisely than DirectSound or something like the Java Sound API will allow for. That’s why XAudio2 has largely replaced DirectSound for current PC and Xbox game developers. It does much more than muffle sounds when they are behind you it allows you to control how the effect sounds in each and every channel of output at the same time. It also allows you to mix and blend sounds to produce a more interesting effect. Those are just a few things that makes XAudio2 far superior to say DirectSound. Cheers! On 3/17/11, Ken the Crazy <kenwdow...@neo.rr.com> wrote: > What about simulating it? I don't know how easy it would be to do, but say > you've got a creature in front of you. You turn, and it pans to the right. > Now as you keep turning, you replace its sound with one just like it but > muffled somewhat. I think that's all 3d audio is like--it just muffles > sound that's supposed to be behind you, and I think the EQ or filtered > sounds would suffice for above and below--but what do I know! I'm about ten > years out of date with most things programming. LOL > Ken Downey > President > DreamTechInteractive! > And, > Blind Comfort! > The pleasant way to experience massage! > It's the Caring > without the Staring! --- Gamers mailing list __ Gamers@audyssey.org If you want to leave the list, send E-mail to gamers-unsubscr...@audyssey.org. You can make changes or update your subscription via the web, at http://audyssey.org/mailman/listinfo/gamers_audyssey.org. All messages are archived and can be searched and read at http://www.mail-archive.com/gamers@audyssey.org. If you have any questions or concerns regarding the management of the list, please send E-mail to gamers-ow...@audyssey.org.
