Convert split stereo to interleaved... why is this such a mystery? (RESOLVED)
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This forum is for seeking solutions to technical problems involving Digital Performer and/or plug-ins on MacOS, as well as feature requests, criticisms, comparison to other DAWs.
Re: Convert split stereo to interleaved... why is this such a mystery?
I’ve been moving files back and forth between PT and DP a lot lately, and there’s been some odd cases related to interleaving. Recently 2 mono drum OH files from DP auto-opened in PT as an interleaved stereo file. No .L/.R. Nothing else from the same session did this. Have seen interleaved from PT show up as 2 mono in DP. Wacky!
Doug Williams
Electromagnetic Radiation Recorders
The Martha Bassett Show broadcast mixer
Tape Op issue 73
DP 11.34
Studio M1 Max OS12.7.6
MOTU 16A and Monitor 8
M1 Pro MBP for remotes and editing
Electromagnetic Radiation Recorders
The Martha Bassett Show broadcast mixer
Tape Op issue 73
DP 11.34
Studio M1 Max OS12.7.6
MOTU 16A and Monitor 8
M1 Pro MBP for remotes and editing
Re: Convert split stereo to interleaved... why is this such a mystery? RESOLVED
I could be wrong but I think PT can automatically show non-interleaved stereo tracks as a single stereo channel on its mixing board, without having to convert to an interleaved file. See, this is all I wanted from the beginning. It would save time converting, as well as disk space, if DP could do this. (I'll really have egg on my face if it can!)
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Re: Convert split stereo to interleaved... why is this such a mystery? RESOLVED
Pretty sure DP does display identically-named non-interleaved .L and .R files as a stereo track with single fader in the mixer.FrankM wrote: ↑Wed Jun 11, 2025 3:06 pm I could be wrong but I think PT can automatically show non-interleaved stereo tracks as a single stereo channel on its mixing board, without having to convert to an interleaved file. See, this is all I wanted from the beginning. It would save time converting, as well as disk space, if DP could do this. (I'll really have egg on my face if it can!)
It's been awhile, so I may be wrong, but you might want to get the egg ready...

Re: Convert split stereo to interleaved... why is this such a mystery? (RESOLVED)
This was the ticket. Worked like a charm - I just dragged one of the two files to the track window and bam, done. Now I know. Thanks!
Save the egg. I just did a little experiment with two mono (split stereo) files.
DP wrote a new interleaved file. ProTools references the original, separate .L and .R files, displaying them as one stereo track in the mixing board. No new file is created. I have to say I like that approach better - it saves disk space.
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Re: Convert split stereo to interleaved... why is this such a mystery? (RESOLVED)
There is a preference that will retain the original non-interleaved, I believe. But I like eggs, so no worries either way!FrankM wrote: ↑Wed Jun 11, 2025 7:43 pmThis was the ticket. Worked like a charm - I just dragged one of the two files to the track window and bam, done. Now I know. Thanks!
Save the egg. I just did a little experiment with two mono (split stereo) files.
DP wrote a new interleaved file. ProTools references the original, separate .L and .R files, displaying them as one stereo track in the mixing board. No new file is created. I have to say I like that approach better - it saves disk space.
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Re: Convert split stereo to interleaved... why is this such a mystery? (RESOLVED)
I'm glad this came up. I've got some de-interleaved samples that I'll need to convert soon, so this was a good reminder.
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Re: Convert split stereo to interleaved... why is this such a mystery? (RESOLVED)
HCMarkus wrote: ↑Wed Jun 11, 2025 9:12 pmThere is a preference that will retain the original non-interleaved, I believe. But I like eggs, so no worries either way!FrankM wrote: ↑Wed Jun 11, 2025 7:43 pm
Save the egg. I just did a little experiment with two mono (split stereo) files.
DP wrote a new interleaved file. ProTools references the original, separate .L and .R files, displaying them as one stereo track in the mixing board. No new file is created. I have to say I like that approach better - it saves disk space.
You are correct. Below is the pref. I ticked "never" and the deinterleaved files now import as a stereo soundbite, referencing the two mono files and not converting. This is helpful to me because I'm dealing with continuous tracks from a 75 minute show - so creating a new interleaved file from one track adds an almost 2 GB file to my audio files folder - wasted disk space.
I'm keeping that picture handy – I'll probably need it again! (Created by ChatGPT!).
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Re: Convert split stereo to interleaved... why is this such a mystery? (RESOLVED)
As MIke noted, this thread has offered us all a good review of the matter. Eggxactly as it should! 

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Re: Convert split stereo to interleaved... why is this such a mystery? (RESOLVED)
Groan. Hahaha!HCMarkus wrote:Eggxactly as it should!

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Mac Studio M1 Max, 64GB/2TB, macOS Sequoia 15.5, DP 11.34, MOTU 828es, MOTU 24Ai, MOTU MIDI Express XT, UAD-2 TB3 Satellite OCTO, Console 1 Mk2, Avid S3, NI Komplete Kontrol S88 Mk2, Red Type B, Millennia HV-3C, Warm Audio WA-2A, AudioScape 76F, Dean guitars, Marshall amps, etc., etc.!
Mac Studio M1 Max, 64GB/2TB, macOS Sequoia 15.5, DP 11.34, MOTU 828es, MOTU 24Ai, MOTU MIDI Express XT, UAD-2 TB3 Satellite OCTO, Console 1 Mk2, Avid S3, NI Komplete Kontrol S88 Mk2, Red Type B, Millennia HV-3C, Warm Audio WA-2A, AudioScape 76F, Dean guitars, Marshall amps, etc., etc.!