How To Enhance iTunes Audio With Logic Pro
I’ve never understood why iTunes doesn’t have support for Audio Units.
A few years back, I purchased VolumeLogic, a volume maximizer plugin for iTunes by Plantronics, which unfortunately has been discontinued. The people over at machinecodex.com have jumped into this market by developing Neutrino ($29.95, free 30-day trial), which is a music player with built-in Audio Unit support – even on a per-track basis which is great to have older songs compete with current (louder) songs in a single playlist. It offers full iTunes integration and a big bag of other goodies. If you’d like to go the freebie way however, and you’re running iTunes and Logic Pro (or any other AU host for that matter) on the same system, you are just a download away from being able to seriously customize iTunes’ sound with Logic Pro.
Soundflower, made by Cycling ’74, is an audio routing utility for OS X that allows you to pass audio from one application to another. The installer includes Soundflowerbed, a small application that will reside in your menu bar, that lets you control what audio goes where exactly. Alternatively, you may want to try out Jack OS X, another free audio routing application that is similar to Soundflower.
Patching iTunes’ Output Into Logic Pro with Soundflower
In System Prefs->Sound, set your Mac’s sound output to Soundflower:
In Soundflowerbed (in your menu bar):
In Logic Pro’s Audio Preferences, set the input device to Soundflower:
Finally, In Logic Pro, record enable a stereo track, and add some plugins to taste. Then play a song in iTunes. Since Logic Pro is the last in line here, you can control your speaker volume in Logic Pro. Since your using your own choice of plugins to enhance iTunes audio, just make sure to turn iTunes’ “Sound Enhancer” and “Sound Check” options off in Preferences.