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Workaround for Logic Pro bug which stops recordings Apps
I discovered a bug in Logic Pro by missing the last movement of a symphony recording: if you unplug your headphones, Logic stops recording. I'm assuming this is because it switches from line out to speakers.

The solution is to route the output of Logic to Soundflower. Launch another audio application (e.g., Amadeus Pro), set its input to Soundflower, the output to headphones or speakers, then launch any operation that allows monitoring the signal. (In Amadeus, open a real-time sonogram window and select Play Through.) Unplugging the headphones now no longer interrupts recording in Logic Pro.

[kirkmc adds: I haven't tested this; I don't use Logic Pro.]
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Workaround for Logic Pro bug which stops recordings
Authored by: bjmorgan on Mar 06, '12 08:33:25AM

Unfortunately, this is not a Logic Pro specific bug, but an OS "feature", as I found out while recording a session in Digital Performer.

Soundflower is indeed an elegant solution, though I wonder if creating an aggregate audio device would work, too?



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Workaround for Logic Pro bug which stops recordings
Authored by: osxpounder on Mar 06, '12 02:12:09PM

Yep, Soundflower and Soundflowerbed are very useful indeed.

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Workaround for Logic Pro bug which stops recordings
Authored by: dcottle on Mar 06, '12 08:43:42PM

That makes sense. But it's not all applications. Amadeus Pro continues to record when switching. But I guess the trick is you are using Amadeus to monitor, not record, so it protects Logic from seeing the switch.

I haven't tried an aggregate device, but that might work too.



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Workaround for Logic Pro bug which stops recordings
Authored by: jjardoino on Mar 07, '12 08:51:41AM

It's not a Logic's bug, it's in the system. But it's not a very big problem for most users. 99% of Logic's users use an audio interface, and there's no switch between line out and speakers.

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jjardoino
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Workaround for Logic Pro bug which stops recordings
Authored by: dcottle on Apr 15, '12 02:55:55PM

I do use an interface for input, but prefer to monitor through the laptop. (The interface is rack mounted and part of a very complex audio system that I don't want to fiddle with. They are just giving me a feed.) The laptop out is simpler.



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