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Can't change recording level

I am trying to record a live piano into Garageband '09 using two Samson CO1U mics. I have it set up so that it will simultaneously record the sound with both mics. However, I can't seem to get the volume on the recording to go any higher. Currently the "recording level" slider is grayed out and all the way to the left so I can't change it at all. If I switch the audio input back to a single mic it lets me change it, but once I select my audio input of the two mics together I can't seem to change it. Does anyone know how to fix this?

MacBook Pro, Mac OS X (10.6.2)

Posted on Mar 25, 2010 8:26 AM

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13 replies

Mar 25, 2010 12:38 PM in response to Christoph Drösser

When I select individual mics in the device list I see a volume slider, but when I select "Aggregate Device" (which was the default name of the device I created) it just shows all the audio devices with checkboxes, with the Samson mics checked. Would selecting the samson mics individually from the device list and adjusting them there affect anything?

May 5, 2010 5:38 AM in response to Mick Parrott

I am having the same problem. The Recording Level and Automatic Level control are greyed out and I can't change them. I can record using the computer built in microphone but I can't do anything with an external microphone. The computer has recognised the audio interface (it comes up in preferences) but that is as far as it seems to go. Any ideas?

Can't change recording level

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