My Audio Unit development exploits went on deep into the night yesterday. But that's how it goes when you're making progress with software development :)

I have managed to make a Cocoa UI work (although there are some vagaries of the event system that I am yet to get my head around - the examples are very inconsistent) and I've actually created the DSP for a passable 'turntable stop' effect - i.e. a progressive slowing down of the sound until it stops. I antialiased the waveform and everything! It's a bit clicky when the buffer loops and needs some work to abstract the effect code into a more dedicated class, and I need to practice up on my C++ a bit more (can I even make small private methods?! Does it even work that way?? Darn it if you can't!). I'm having lots of fun with it though. Even if I'm basically having to work out how to achieve audio effects by.. well - just thinking about how to do it.. because I still need a book, and I have no internet at home (Blackberry Browser notwithstanding) when I'm working :S