Putting sound in both channels

I shot a video using a mic that only recorded in the left channel. How do I put sound in the right channel, as well? I this something I select when exporting the movie? If so, do I select "mono" or "stereo"?
thanks.

Hi
I did as follows.
• Select all video clips
• Advance menu -> down to Extract Audio
• Share to QuickTime -> Expert mode and audio only as .aiff
• Use a sound editor to mix-down to mono: I got Audacity - (free) to
do this.
• Save as audio .aiff
• Import this into iMovie and mute the other audio tracks.
Done
This can also be done - with GarageBand - But I've not done it that way.
Yours Bengt W

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Putting sound two two different outputs...

I have a Onkyo 5.1 System hooked up to my optical out port and Harmon/Kardon Soundsticks hooked to a USB port, I like having the room filled with noise, via the onkyo, but i like the vvocals coming throught the soundsticks right at me. is there a way to make it put sound to both of them, it doesnt have to be different sound it can be exactly the same but it just needs to go to both sources.
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I have a creative gigaworks s750 connected to a xtreme gamer sound card. The system was working absolutely fine but now it has started behaving very strangely; system is playing back Front Left Speaker sound from both the front speakers while Front Right sound is not coming out at all. If i click the front right speaker in audio console speaker setup wizard, no sound comes. However when i click the front left speaker, sound comes out of both speakers. I counter checked it with playing 5.1 dts movie and muting all the speakers except the front left one from ac3 filter, sound came out of both the front speakers. However when i muted all the channel except the front right, no sound was coming out of front right speaker.
Message Edited by hussain on 06-10-2009 10:26 PM

Just want to add another relieved reader of this thread. I had lost the sound to my speakers even though I had sound to headphones. I was convinced it was a damaged headphone jack because I had pushed the headphone plug in harder the last evening when my wife complained that she could still hear the speakers while I listened with the headphones. The next morning--no speaker sound.
I spent a few hours searching the web to see how to disassemble a satellite A505 and get to the jack. But I wasn't even sure I could get a proper replacement jack that fit, and I was concerned that small damage, say to the ribbon connectors could render the computer useless--a large price to pay for just missing audio.
Fortunately, I stumbled onto this thread and I recalled I had put the unit to sleep the night before--something I don't usually do, but I didn't want all the Chrome web sites to have to reload so I just put it to sleep.
When I put it to sleep again and fired it up--Sound! I am so glad to find this solution so I just want to let people know it remains a viable option.
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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.
Is there ANY way to get it to play back on both channels? (Or is this a sneaky way of urging us to upgrade to QT Pro?)
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.
(QT 10.1, on Lion)
Thanks.

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.
(Actually, there is a fourth option if you are using an external amplifier for playback, which is to simply use the output amplifier to accomplish re-channelization during playback rather than actually fixing the media file with QT 7 Pro.)

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NGKai wrote:
Hi, I am trying to perform two measurements simultanously using both channels of the Virtual Bench's analog input. I have selected MSO channel 1 and 2 for the measurements yet I am getting error 375903 returned evewry time saying the resource requested is reserved. I am not running any other software that should be using the virtual bench. The error occurs when I am initializing the session, before a measurement has even been made. Can someone tell me how to call each channel so that I am not getting this resource reservation conflict?
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akbarabooali wrote:
pleases help me .. my lap top modle is dm4t one of spekar is not out put sound under this spekar write dolby why this problam ---- my english language is not good
Is your laptop still in warranty? Have you owned it for less than one year?
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****Please click on Accept As Solution if a suggestion solves your problem. It helps others facing the same problem to find a solution easily****
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Putting sound in both channels

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