http://www.hard-light.net/wiki/index.php/Music.tbl#Music_Tracks
As someone who has successfully added about six or seven OGG based soundtracks, YES. The numbers matter. The equation listed there is correct. I am unsure as to where that 2 comes from, but that's what works, and who am I to argue with that?
Follow the directions there to the letter. It's basic algebra.
Woah. I never said that the numbers
didn't matter, I just said that they were wrong. When I last checked, they contradicted the values given by foobar, Audacity, and dBPowerAmp, and when I discussed it with taylor, he ignored that issue and told me that it was up to the modders to get it right. That is the basis I was going on.
Having played around with that formula, it looks like the formula gets the numbers wrong in foobar (I don't have Audacity or dB installed) by a factor of 2. You could account for this by saying that the "2" is the number of bytes, or the number of channels (stereo or mono) but one or both of those would depend on the ogg/wave file and would be invalidated for certain types of files. Now, I suppose you could arbitrarily call this "Freespace 2's number for music length, and here's the formula" and there would be no ambiguity, but if you're going to call it "samples per measure", then it had better be samples per measure. Especially when it contradicts three separate dedicated audio programs. Otherwise all it does is serve as a barrier to anybody who actually does work with audio, which is pretty bad design for an audio interface.
However, you're right that this is pretty much a "it just works" issue now, rather than a "what's right?" one since people have used it for release.