Oh, by the way, the next time you record, don't record the track as stereo, simply record the side with your signal on it as a mono track. You can still process it with 'stereo' effects, but this will be the easiest way to deal with the signal so you don't have to mess with deleting the empty side each time. The left and right input channels should show up as individual channels in your I/O selections available for recording. I would be highly surprised if they are not.

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