Mono Audio in Both Channels

I have audio AIFF files recorded in mono that when imported and put into the timeline only play in one channel (sometimes left and sometimes right apparently at random). It makes no difference how the pan is set for a given clip. How can I get these clips to output in both channels?

Rienk wrote:
I bet you hear it on the left channel when the audioclip is on audio track 1, 3, 5, 7 or etc. And you hear it on the right channel when it is on track 2, 4, 6, or etc.
Go to User Preferences and check the Audio Outputs tab.
That's right, odd on one side and even on the other.
The Audio Outputs setting fixed it, but that preference only applies to new sequences. You have to set it for the current sequence in the Sequence menu.
Thanks.

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Applying audio to both channels

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ahhhhh.... once i double clicked on the synced video/audio file in the timeline it allowed to make the adjustment in the inspector window.
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I'm recording audio with mono lapel mic, i.e. only one channel.
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Thanks, David.
So, if I have talent A on the left channel of the video, and talent B on the right channel of the same stereo recording...
can I pan each of these "mono" sides centered so they both come out the left and right sides ?

Can I playback in both channels with my audio interface?

From what I've found so far I'm afraid the answer is already "no" but I have to ask for myself.
When I record into QuickTime movie (not Pro) using my Alesis IO|14 Firewire interface, it only plays back on the left channel.
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I'm assuming the audio quality of my M-Audio Nova condenser mic is better than my iMac's built-in mic, which is why I'd really like to do this. I don't even need true stereo, just both channels playing back.
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The mic and interface record just fine into GarageBand, either as stereo or mono, and plays back out of both channels with the same setup, so I think the problem is with QT.
I don't find any kind of switch like that in the Hardware Direct Monitoring software for the Alesis, but I'll investigate further.
As I mentioned, I've searched this and other forums and it seems like this is just how QT is set up. But I was hoping for some sort of solution.
As previously indicated, I am not familiar with your IO device, so let me ask a few questions here.
1) Is the Nova mic you mentioned mono or stereo?
2) If mono, are you using two of them?
3) If mono and you are not using a pair of mics, does the input interface hardware have the ability to blend left and right (mic 1 and mic 2) input channels?
4) If mono, you are not using a pair of mics, and the device has no ability to blend left and right channels, are you you using an adapter cable to input a split signal to both input channels of the device?
If you are using a mono mic to input a signal to only one channel of the input device and are not/cannot blend this signal to both channels before output via the Firewire cable, then its sounds like your system is working normally and correctly. Basically, the Firewire audio is sent to the QT app as received from the Firewire device and recorded as is in stereo. I.e., if the left channel is active with the mic signal and the right channel is empty, then the audio is recorded only to the left channel and the right channel records the "nil" signal/nothing. On the other hand, GarageBand is an audio editor designed specifically to blend, pan, duck, filter, and/or otherwise taylor audio content as desired by the user. (I.e., which includes the ability to re-channel a single mono audio channel to both channels of a stereo track during the recording process which the QT app can't do.) In short, both apps are doing what they are designed to do as they were designed to do it. As such and as previously noted you have three basic options here.
1) You force the IO device to send stereo or two-channel mono audio to your Mac by using two separate mics, use a single stereo mic with dual channel audio output, using an adapter cable to split the single mono mic audio output line into two separate lines to be plugged into both channels of your IO device, or you can apply/blend the active channel to left and right Firewire output channels within the device if it has this capability.
2) You can use GarageBand to do create and export audio recordings instead of the QT app, or
3) You can purchase QT 7 Pro in order to fix your left channel problem post recording by simply applying the left channel audio to both left and right channels within the audio track so it will play as you want in any media player on your computer.
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Thanks

It sounds like you originally had a stereo pair (a1/a2) that you unlinked, which gave you a Mono(a1) and a Mono(a2), and then you deleted one of them.
When you unlink a stereo pair, each resulting Mono track retains its original properties, including left or right channel assignment. This can be changed with the pan control in the Viewer.
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25424...
Sure you do not want to give the Fill Left and Fill Right another try?
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Fill Left, Fill Right
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Is the speaker system OK?
We will be watching for your results.
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ATR

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dainternetguru wrote:
Yes I'm aware I can still use iMovie 9, which is what I've reverted back to until I can fix this problem.
For now, I think that is the best choice.
You could also buy QuickTime Pro 7 which will allow you to do the same mono conversion that iMovie version 9 does.
http://www.apple.com/quicktime/extending/
Matt

Mono Audio signal: adjustment of the balance not possible

Dear all,
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In addition it should be possible to adjust the balance of the mono(!) signal for greater volume on the right or left. This would be very beneficial for me and others with a hearing loss at one ear, but doesn't work on my iPhone 4 as expected. It seems, that the balance setting is only effective in the 'Stereo' mode.
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Dear all,
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After updating Premiere Pro today (CC 2014) every mono audio clip is interpreted as stereo, with the right channel switched off – so every mono signal plays only on the left channel (panning o,o). When I select the mono clips and go to "Audio Channels", there is a second "Source Channel", switched to "None". If I switch this second channel to "Channel 1" (right), the problem is solved, but I'd had to do this for every mono clip in my project!
I checked the mono clips, and they show up with "Mono" in the meta data, and the source monitor shows a mono waveform, so that's not the problem.
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Another good method that does the same trick without a filter is... After importing your file and before dropping it down on your timeline, right click on the clip go to Modify>Audio Channels. Select mono 2 channels and it does the same thing as the filter would. I use both methods a lot because of the way I shoot with a PWM Ex3. Have a good day man!

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I'm having a hard time understanding what Premiere is doing with my meda's audio.
I have imported DSLR clips. The audio is stereo and is labeled that way in the project panel. However, I can't seem to manipulate (mute or individually select) the left and right channels. Why is this?
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No, it's not. Stereo and mono are treated differently. If you want something to affect both channels, it will need to be a stereo track. If you want to adjust the channels individually, they'll need to be mono. You can't have both at the same time.
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Mono Audio in Both Channels

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