Cannot change bitrate/buffersize within SC since the driver uses the ASIO control panel functionality which is not implemented in SC 2.2.16.
24 bit mode for simultenous playback and recording limits output channels to 2.6 channel/24 bit output limits input to 16 bit.
requires OS 9.2.2 for glitch-free realtime playback.
96khz samplerate produces audible clicks at highest buffersize/lowest bitrate settings, in other words, it's useless.
latency and benchmarks (using Max/MSP latency test since I didn't feel like figuring out how to write one in SC):
PowerBook G3 500Mhz (pismo)
44.1khz samplerate (bitrate independent)
buffersize (samples) | latency (ms)
1024 | 74.35
768 | 56.75
512 | 39.04
384 | 30.22
256 | 21.45
196 | 17.39
128 | ~14.00
Sine Oscillator benchmarks before glitching (24bit mode)
buffersize (samples) | # oscils | CPU percentage (avg)
1024 | 508 | 88%
768 | 478 | 84%
512 | 430 | 76%
384 | 395 | 70%
256 | 310 | 57%
196 | 300 | 57%
128 | 200 | 40%
As you can see, realtime processing is kinda out of the question unless you have a faster CPU than mine.I imagine a G4 800 would do just fine.
- lee
