A technical support community for Apple Logic Pro users.

 
shadowboxnyc
Topic Author
Posts: 51
Joined: Thu Apr 26, 2007 9:05 pm

Easiest way to split stereo tracks to two mono tracks SOLVED

Sat Sep 21, 2013 1:28 pm

I wish there was a "Split Stereo Tracks into Two Mono Tracks" function. What's the easiest way to do this? My method is to convert audio files to split mono. But you have to rename and delete stereo file in session so it imports on to two mono tracks. Other wise it still see the two mono files as one stereo since the have the .L and .R suffix. First world problems I suppose. But its a waste of time. Any other quicker method that I'm missing?
Christopher H. Knight
composer
• Logic Pro X 10.4.2
• macOS High Sierra 10.13.6
• iMac 2017 • Quad Core 4.2 Ghz • 64 GB
• Mac Pro 2010 • 12 Core 3.46 GHz Intel Westmere • 64 GB
• Apogee Element|24
• Komplete Kontrol
 
User avatar
Jordi Torres
Moderator
Posts: 15997
Joined: Wed Jun 18, 2008 7:24 am
Location: Neuchâtel, Switzerland

Re: Easiest way to split stereo tracks to two mono tracks.

Sat Sep 21, 2013 1:44 pm

shadowboxnyc, Click this link to your signature and add your system information:
• Logic version and sub-version (e.g. Logic 10.0.3)
• OS X version and sub-version (e.g. OS 10.8.5)
• Computer (e.g. MacBook, Mac Pro, iMac)
• Processor (e.g. 2 GHz Intel Core 2 Duo)
• Memory (e.g. 2GB)
• Audio interface manufacturer and model (e.g. Presonus AudioBox USB)

(most of that information can be found by choosing Logic Pro X > About Logic Pro X, and  > About This Mac)

shadowboxnyc wrote:
Any other quicker method that I'm missing?


Depends on your goal...if all you want to do is process the 2 channels separately, you could simply put a copy of the stereo region on another track and set the original's channel strip input format to "Left", and the copy's to input format to "Right".

If you need to have separate mono regions, do this:

Split the interleaved file using the Copy/Convert function (Audio File menu) in the Project Audio Browser, then disconnect the left from the right (select L and R regions in the Project Audio Browser, then go to Edit > Disconnect Selected Split Stereo File).

Then you just drop them each on a mono track and pan hard left and right, and turn down their volume by 3dB (if your Pan Law is set to -3dB Compensated).

J.
Et voilà!

MacBook Pro 15" Retina i7 2.2 GHz - 16GB RAM | OS 10.14.6 | Logic Pro 10.4.8
Merging Hapi | RME Fireface 400 | Akai MPK49 | Nord Micro Modular
 
shadowboxnyc
Topic Author
Posts: 51
Joined: Thu Apr 26, 2007 9:05 pm

Re: Easiest way to split stereo tracks to two mono tracks.

Thu Sep 26, 2013 9:19 pm

Thank you! Perfect. First solution is all I needed. Why didn't I know that??? :)
Christopher H. Knight
composer
• Logic Pro X 10.4.2
• macOS High Sierra 10.13.6
• iMac 2017 • Quad Core 4.2 Ghz • 64 GB
• Mac Pro 2010 • 12 Core 3.46 GHz Intel Westmere • 64 GB
• Apogee Element|24
• Komplete Kontrol
 
User avatar
Jordi Torres
Moderator
Posts: 15997
Joined: Wed Jun 18, 2008 7:24 am
Location: Neuchâtel, Switzerland

Re: Easiest way to split stereo tracks to two mono tracks SO

Fri Sep 27, 2013 1:58 am

You're welcome!

J.
Et voilà!

MacBook Pro 15" Retina i7 2.2 GHz - 16GB RAM | OS 10.14.6 | Logic Pro 10.4.8
Merging Hapi | RME Fireface 400 | Akai MPK49 | Nord Micro Modular
 
eddydenton
Posts: 18
Joined: Wed May 15, 2013 7:13 am

Re: Easiest way to split stereo tracks to two mono tracks SOLVED

Mon Feb 15, 2021 10:14 pm

Here's a little hack if you have a stereo file and you want to split the left and right into separate mono channels e.g. if you have an interview with the two speakers recorded on L and R channels. Using the same method above, copy the stereo file into another track and click-hold the input format button to select Left on one and Right on the other. Then make a small edit (split the file and move it a tiny bit at the beginning or end) and join (command-J) which will create a new mono file with just the left and right in their respective tracks. It is mind-numbingly stupid that 8 years after this discussion Apple still hasn't fixed this so that you can easily import stereo files into two separate mono tracks, but here we are...
 
User avatar
David Nahmani
Site Admin
Posts: 82699
Joined: Sat Mar 05, 2005 12:16 am
Contact:

Re: Easiest way to split stereo tracks to two mono tracks SOLVED

Mon Feb 22, 2021 11:13 pm

eddydenton wrote:
Here's a little hack


Nice. Based on a similar idea, Jakob shared an even quicker solution there: How do you split a stereo file in Logic ?
David Nahmani
• My Logic Pro X 10.5 book (Apple Pro Training Series)
Contact me for Private Lessons
Logic Pro X 10.6.1
MacBook Air 1.3 GHz i5 — MacOS X 11.0.1 — 4 GB RAM
iMac 3.2 GHz Quad Core i5 — MacOS X 10.15.4 — 8 GB RAM