Speed of sound drop off - yeah its not going to be that noticeable anywhere that we'd be using our empegs in, and in any case the calculation to distance would be affected by change in speed not the actual delay - which would be whatever you entered.

Re: your own code, are you doing your delay before or after Voladj is doing its stuff to the PCM stream?

I wonder if you shouldn't do the delay after VolAdj has done its bit as if you delay one channel then Voladj won't see accurate view of the actual PCM stream as output by the mp3 decoder - and this may adversely affect the way voladj works.

Are you planning on getting Mark to put your hack into the std hijack kernel or will you release your hack seperately?

Its neat it will be in a hijack like option - easy to use, can't wait to try it out!