Reverse Playback of Audio Streams in iOS

In our last post, we looked at how to access iPod Library tracks and stream them from disk in real time, using Apple’s Extended Audio File Services and Audio Unit APIs. We also speculated about the possibility of modifying our code to allow for reverse playback of those streams – you know, so you can hear what stuff sounds like when you play it backwards. Let’s look at how we might go about that now.