FMOD is a wildly popular sound engine for games, used widely in games for PCs, consoles, and portables alike. FMOD is known for being on the bleeding edge as far as capabilities, but even given that, it’s a pleasant surprise that the engine has now made its way to the iPhone and iPod touch.

It’s got some impressive capabilities going for it, too:

• Mic input
• 3D audio
• DSP effects
• Compressed samples, MOD, and MIDI

And, in good news for indie studios, it’ll cost just US$500 per title to license.

Of course, you can add this to Pure Data (Pd), which found its way to the mobile platform via the (partially open-source) RjDj project. RjDj is a music platform, not a game platform, but Pd has some powerful audio processing capabilities of its own, and I’d count them both in the category of interactive music. The RjDj gang will be having their next “sprint” – a developer intensive to build interactive scenes for the platform – in Berlin, with New York to follow in January. (I’ll be at the New York event, naturally.)

December is the time for the next RjDj sprint: The Reality Jockeys would like to invite you to the Scene composing session on 12-14 December 2008 in Berlin at this nice location: