Removing Power Line Hum in GarageBand

I had made a video on removing hum in Soundtrack Pro a long time back. Last night I found I had never shared a version I made where I replicated the process in GarageBand for my author friend, Jake Bible.  So I tossed the video into FCPX to put a title and introduction on it then sent it on up to YouTube.


I cover how to remove power line hum, (120Hz) from audio using GarageBand. The technique is useful for removing any constant frequency from your audio. You can find Dead Mech at

Compressor 4 – Distributed Processing

I tossed together a video tutorial on using multiple macs to do distributed processing with Compressor 4.

I found that Compressor 4 cannot talk to qmaster nodes on older macs running Compressor 3.5.  And in the case of my 1st generation mac mini it won’t install Compressor 4 from the app store.  BUT I did find I could drag Compressor 4 to my mac mini manually and run it as a services only C4 qmaster node.  Thus I still get to use it for extra processing power in my Compressor 4 cluster.

Repairing Clipped Audio

I walk through how I use Soundtrack Pro with Bias Soundsoap to repair some podcast audio. The audio came in clipped but not distorted so badly as to be unusable. I originally did it the hard way using Soundtrack Pro’s “Clicks and Pops” tool. That took hours. Then I remembered Soundsoap has a feature to remove clicks. We dial down the noise handling part and use just a touch of the click removal and it works well and quickly.

Video – Podcasting Mix Minus Setup for Multi Track Recording and Skype

I walk through how I have mix minus setup to my Mackie 802-vlz3 board for multi track podcast recording. This goes along with my other video on using audio hijack pro for multitrack recording. I do realize you can pan one channel left and another right (such as the recording host and the music-fx) then record that coming out of the master mix. I don’t do this because it creates the extra work in post processing of having to break them apart into mono tracks. Plus doing individual hijacks in AHP lets me apply different audio processing stacks to the capture live as recorded. This setup works well when wanting to record all three tracks on one end when using skype. You might want to do this for interviews or when your cohost is traveling.