On Oct 1, 2004, at 3:29 PM,steven_rowat@... wrote: > 1. Does this mean that currently busses and auxes in Logic Pro 6, even > using standard Logic plugs, are regularly introducing delay? SOME plug-ins take a long time to do their processing. Others do not. There are numerous reasons a plug-in might cause delay: 1) ultra complex algorithm 2) algorithm is on an external device (DSP card, for example) 3) algorithm includes "lookahead" processing in which it grabs a chunk of audio and analyzes it before it processes it. > So that if I > use Space D or platinum verb or compression or Ad-limiter or whatall > on a > buss, I'm screwing with the relative positioning of my audio tracks in > the > Arrange, and that this will continue through a bounce or mixdown? Interesting group of plug-ins you chose. Remember, it's not "native vs. non-native" its delay causing vs. non-delay causing. So taking them one at a time: Space D: ultra complex algorithm. DELAY. PlatinumVerb: no delay. Compressor: no delay. Ad-Limiter: algorithm includes lookahead. DELAY. > 2. What's the relationship of the audio preferences "plug-in delay > compensation" to all this? Is it native plugs, or non-, or both? > Should it > always be activated? Why not if not? I keep it permanently activated. With it on, Audio Tracks and Audio Instrument Tracks are automatically adjusted for the playback latency of any plug-ins that cause latency. So Logic DOES have delay compensation for some tracks. We just really need it for Bus/Aux tracks as well. Orren -- http://www.mertonfolio.com Author of: • Logic_6_Power • GarageBand Ignite http://www.courseptr.com/ptr_catalog.cfm?group=Music%20Technology