Logic Pro X, Splitting a stereo file into two mono files
This year, I found out that I’m going to be doing a lot of virtual learning. With that comes the possibility that I will need to record online lectures or meetings. So, I’m leaving this here, partially as a guide to my future self when I inevitability forget.
Right now I’m recording the calls with Piezo. This is a very simple app that allows you to record audio from any source on your computer. Piezo can record from VoIP apps as well. It does this by saving your local microphone recording to the left channel, and recording the software input into the right channel.
Recently there were some edits I wanted to make to a recording. I wanted to clean up some talking over, as well as cut out some boring sections. But this was not an obvious function in Logic Pro X. Thanks to this video, I was able to figure out how to do it.
Here’s how to do it:
- Import your recording to Logic Pro (obviously.)
- Select your clip.
- Press Alt+Command F to convert to new audio files.
- Save the output files to a different area than the default area for that project. I made a folder simply called “Split Files.”
- Change export from “interleaved” to “split.”
- Now that you have two files, the files need to be renamed to remove the period from “.R” or “.L”. For example you want “File.R” to be “FileR” instead. I have a simple Hazel rule that does that for me. It’s a very simple find and replace rule that you can download here.
- Now you will be able to use both tracks as mono on separate channels.
It’s not obvious why Logic Pro requires this crazy series of steps, but at least it’s possible. A good app idea for someone would be a simple program that can split a stereo files into two mono files with one click.