Bouncing mixes from Logic Pro to "Music" (iTunes)

When I do a mix in Logic and bounce it to my desktop and subsequently to MUSIC, formerly iTunes, the stereo is switched 180 degrees. What was on the right as it was played and MIXED in Logic will now be on the left in MUSIC (iTunes). Also, when watching videos on YouTube the stereo audio output is also opposite of what it should be. Anybody have an answer for why this is occurring? I recently have updated to Catalina but this happened before I did that.

MacBook Pro 13", macOS 10.15

Posted on Jan 26, 2020 9:36 AM

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Posted on Jan 26, 2020 12:44 PM

Yes I know bouncing is internal, but by default you will not get what you describe, and given it is happening outside logic, it follows it is likely a output issue not a bounce problem.

when you pan an instrument in logic and listen through your headphones of your interface is it working ok?

what about doing same just using internal Mac sound card?


if these are working ok, it’s likely not Logic


what are your OSX audio settings?




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Jan 26, 2020 12:44 PM in response to 73sim512

Yes I know bouncing is internal, but by default you will not get what you describe, and given it is happening outside logic, it follows it is likely a output issue not a bounce problem.

when you pan an instrument in logic and listen through your headphones of your interface is it working ok?

what about doing same just using internal Mac sound card?


if these are working ok, it’s likely not Logic


what are your OSX audio settings?




Jan 26, 2020 12:04 PM in response to Iaamusic

Thanks for responding. When working in Logic and listening to my muaic in MUSIC (iTunes) I'm just using the out on my MacBook Pro to my stereo amplifier, as I have done since forever. So the output source of the audio for both applications is the same and they take the same path. Of course, when I'm recording audio I go through a a Steinberg UR 242 Interface to the stereo amplifier but bouncing is an internal process so I don't think that has anything to do with it. Headphones make no difference.

Jan 27, 2020 8:15 AM in response to Iaamusic

When running Logic what one hears from the headphone output on my interface is as it should be; left is left and right is right. That also applies to the headphone output on my stereo amplifier when the signal is coming from the interface outs.

I have looked at the MacBook Pro sound preference in/out settings but I find no possibilty to switch the stereo field there.

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Bouncing mixes from Logic Pro to "Music" (iTunes)

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