Hi,
I was evaluating Airplay and noticed that for sound output there are basically two possibilities: the S3E Sound and S3E Audio APIs. Unfortunately these seem to provide just simple sample/music playback functionality. However, at least the iPhone supports positional 3D audio through the OpenAL library. Is it possible to use positional 3D sounds with Airplay or is implementing such functionality left up to the programmer (for example by linking OpenAL soft or some other sound library)? Any recommendations?
Thanks in advance.
Hi Soiha,
In the future we may well provide an OpenAL implementation that runs on top of s3eSound. We don't have this yet, so your best option is to port something like OpenAL soft yourself.
3D sound amounts to (something like) splitting a single mono sound channel source into separate left and right channels with delay, frequency shift, left/right pan and volume adjustment. The calculations for left/right pan and volume adjustment are fairly trivial so you could probably arrive at basic solution yourself with little work.
Dave