Keynote unable to use one recording channel only?

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Keynote unable to use one recording channel only?

Hello,

I am currently recording with a Roland UA-25EX, which sends 1 channel of audio to my computer.

All other programs simply duplicate the audio on both left and right channels to generate a stereo signal.

However, Keynote seems unable to do this, and will try to generate a mono-audio output, even when asked to export to QuickTime.

This means that the audio will only play on my left speaker / left headphone, instead of on both.

I wonder if this is a problem in Keynote, or whether I am missing something.

Any help would be appreciated, as right now I cannot record my lectures with Keynote!

Thank you for your time.

Best regards,

Jose

Keynote 6-OTHER, OS X Mavericks (10.9)

Posted on Oct 26, 2013 11:53 AM

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Answer 1

Nov 29, 2014 5:19 PM in response to jslvtr

I Have a brand new MacBook Pro 15 inch and tested recording in Keynote using an old iMic via usb. The iMIc works perfectly on my 8 year old MacBook Pro but only records one channel in Keynote? Any suggestions?

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Answer 2

Nov 30, 2014 5:50 AM in response to Bigfutureahead

As an alternative to using the troublesome equipment, I would suggest buying one of these items. My local supermarket stocks them, both are from logitech, both using USB digital connection, they cost less than £15-00:

headphone mic, table stand mic:

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Answer 3

Oct 3, 2016 5:12 AM in response to jslvtr

This is a real problem, and I believe the only fix is to have the Keynote programmers add dual channel - stereo to the app. I can't believe it's not there already? So easy really.

Currently I have to detach the audio export it, change it to stereo in Audacity, then reimport it into back into Keynote.

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Answer 4

Oct 5, 2016 7:03 AM in response to ShanghaiBob

the only fix is to have the Keynote programmers add dual channel

Recording and playing back audio is not handled by Keynote at all, QuickTime core component does this.

I can't believe it's not there already?

It is.

By default Keynote versions 5, 6 and 7 plays back dual mono from a single track recording from a mono USB device to both left and right outputs.

Have you checked the settings in Applications > Utilities > Audio Setup for the output device used?

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