Hi there, I found a thread or two in the past that talked a little about this. I'm hoping that in the time since those discussions there've been some internal improvements to ChucK that might help me have a bunch of samples ready to fire concurrently without eating my box alive. Here's how I repro the issue (running on a late-model 2.13GHz MacBook Air): SndBuf buf[512]; // gets more responsive as I reduce to <384 or so fun void connect(SndBuf b) { b => dac; } for (0 => int i; i < buf.cap(); i++) { spork ~ connect(buf[i]); } while (1::second => now) <<< now >>>; If there's nothing I can do about SndBuf's wasteful behavior is there a better/more ChucKian-approved way to prepare a bunch of independent audio buffers (hopefully >1024) for arbitrarily-timed concurrent playback? Really hoping that the answer isn't that I need more cpu cycles on that core and/or that I'll need to distribute ChucK and set up some kind of sync mechanism :-/. I have very similar performance results with WvIn btw. Thanks a bunch! -josh