--- In logic-users@yahoogroups.com, Remco Muntz <rmuntz@g...> wrote: > Maybe this is the problem, because I have the RME DSP Multiface as > well. RME gives horrible support to the Mac-platform. Not so. RME were one of the first companies to release working OS X audio drivers, if I remember correctly. I've found them to be very responsive to support requests, more so than my experience with Emagic or MOTU. They can be a little twitchy responding to users-with-attitude on the support newsgroup, but that applies to Windows users as well. And judging by the current beta, it looks like OS X users are about to get power management and standalone mode _ahead_ of Windows users. > Maybe their driver isn't working properly. Works very very well here. Rock solid. > They blame Apple for it, which I don't entirely believe > because other manufacterers can make good drivers, so why can't they? They blame Apple for the lack of Direct Monitoring support in CoreAudio, and they are correct. Note that _no_ manufacturer currently provides Direct Monitoring in OS X, and there are no apps that support it anyway. The issue of CPU use for audio copy routines making multichannel audio devices use more CPU under CoreAudio compared to ASIO/OS9, is also Apple's problem. This has been noted by other manufacturers as well. There is now (in Panther) a facility to turn off any unused audio i/o channels in the driver to save CPU, but this is a workaround at best, and requires the host application (ie Logic) to support that (which it currently doesn't). > Maybe others can comment if a bad driver by RME can be the problem for > the lack of snappyness in Logic. Highly unlikely. Yes, it's slower on redraw than in OS 9 for me too, especially noticeable in screensets with lots of windows open. But that is still true if I switch to Mac built-in audio. It's much more likely to be something like OS 9 QuickDraw drawing code that has been ported to OS X, rather than re-coded, and then not especially optimized for the new platform. John Pitcairn