> Message posted by Kevin Wilson <kevin_wilson@brown.edu>: > > Right now I'm running Logic Pro on a powerbook G4 > -- I often hear a slight bit of what might be noise, Hi Kevin. Did you check if there is any track, or most important, the Master Output fader in Logic, clipping. If yes, bring the volume down. For audio interfaces, which protocol you wanna use? USB or FireWire? Anyway, look out for some brands: - RME - MOTU - Metric Halo - PreSonus - Digidesign - Focusrite - Edirol - M-Audio - Mackie etc, etc, etc... And yes, you'll have less latency problems and better audio quality using a professional audio interface, with great pre-amps, AD/DA converters and drivers. The first four in the list above are the ones I prefer. (I own a MOTU 828 mkII). Best regards, Gordon