Prior to the release of iOS 7, the concept of Inter-App Audio (IAA) has been hard to fully understand. Early developer impressions saw it as a way to bring iOS apps into a more typical DAW architecture. This didn't help to visualize what it was or how it would be used in the real world though, and so for the last 3 months it has existed as nebulous, "Maybe-Audiobus-killer?" Now that it is finally out, and developers are finally free to talk about it, we're getting some great examples of it in popular apps!
All of which brings me to several conclusions. Firstly; holy shit turn your phone over when you're recording a video! Secondly; this is some awesome new technology! Although not as flexible as Audiobus' multiple app chains - IAA is limited to one app going into only one other app - nor as modular as JACK, this is definitely an impressive new way of connecting music apps!
Correction: Apparently I still don't have my head around all of what IAA is capable of! Nave developer Rolf Wöhrmann commented here with a correction:
"The host can [have] as many node apps involve as he likes. You could even build an AudioBus-like host app which chains 3 nodes together. You could a DAW-like thing. Or you could implement a JACK-like network of node apps orchestrated by the host app. The only limit is your imagination, and of course the CPU/RAM power."
Although we can't really do much with the available apps at this time, there is a lot to look forward to as developers embrace IAA. iDesignSound has begun to compile a list of apps that are currently compatible with IAA.
read here
by http://discchord.com/blog/
