Mono audio in stereo clips...

I have several video clips in my current iMovie project that were recorded using a mono microphone. The problem is that these are on a stereo track and aren't recognised as mono by iMovie. The result is that, for all clips recorded with an external mic, I only get audio in the left channel.
Is there any way I can fix this in iMovie or do I have to extract audio for each and every clip and fix them manually in a sound editor?
Thanks in advance,
-fh

"..do I have to extract audio for each and every clip and fix them manually in a sound editor?.."
Yup.
'Audacity' is a free audio editor, and lets you do just that.
In iMovie HD, 'Extract' the audio, as you suggest, then double-click the extracted clip(s) to see what iMovie calls it (them) ..possibly "Voice 01", or some such. [..In iMHD6 it'll be called "Extracted audio 01", probably..]
Then, in your audio editor, navigate to the name of your project, and look - if you've been using iMovie HD 5 - in the 'Media' folder inside your movie project's folder. In there, you'll find "Voice 01", or whatever it is.
Then copy the left channel (if that's what's been recorded) to the right channel, as shown here (click on Start Slideshow to get larger images)..
You can also, apparently, do that copying and pasting in GarageBand ..though I haven't tried that.
[..In iMovie HD 6 the procedure to find the extracted audio files is slightly different, as they're contained in a "package" which you have to right-click (Ctrl-click) to find them. But in iMHD5 it's much simpler..]

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How to convert mono audio to stereo during import?

When I shoot my videos for YouTube I use an external mic which works great but when my camera records it, it is mono sound, so only the left channel of my source videos contain the talking.
In the previous version of iMovie 9 I used to be able to export using QuickTime and convert the audio to mono so the final video which is uploaded has sound coming out of both speakers.
Honestly I don't care what format my exported files are in, as long as they're HD and the audio is good. So the new .mp4 file format is no problem for me with iMovie 10.0.1
In the lastest version of iMovie (10.0.1) I can't see a way to convert my mono audio to "real" mono or stereo sound (whatever it's called) so the sound comes out of both speakers. Having the talking only coming out of one speaker now makes me look like an idiot on YouTube.
I tried a stereo/mono adapter where the mic connects to the camera but it resulted in no sound. So I'm hoping I can use an audio fix somehow using iMovie 10.0.1 to fix 'er up. What are my options guys?
Yes I'm aware I can still use iMovie 9, which is what I've reverted back to until I can fix this problem.
Thanks.

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

Problems with imported mono audio with stereo HD video FCE4

This is with Final Cut Express 4.
So here is what I am doing: I am recording video of my flight lessons inside my airplane with a mounted Panasonic HDC-TM90 HD camera. Since it is noisy inside the plane, I am using an Olympus VN-4100PC digital voice recorder to pick up the Air Traffic Control and Intercom within the airplane (between me and my instructor) which is 22 KHZ mono. I am doing this because I want the sound of the airplane and also the communication so everything works together and you get the best of both worlds (otherwise you would hear one or the other and that's pretty boring). Ok, enough with the intro.
Here is what I am having problems with -- when I get the video, stereo audio with the video and the mono audio all lined up in FCE in my timeline, it starts to get out of sync about 10 minutes or so into the film. And it gets worse as the film goes on. This is driving me nuts and I have NO idea out to fix it.
The only thing I can think of is that my Digital Voice Recorder is recording at a slightly faster speed than the camera's audio and this is why it gets out of whack.
Does anyone have any suggestions on how to fix this? Or at least give me an explanation why it is happening?
Thanks for any help!!

Thanks for the reply. I did this and it still doesn't seem to be matching up properly. Tell me if maybe I missed something.
1. I took the original .WAV file from my Digital Recorder and imported it into iTunes and then converted it into an .AIFF.
2. I took the .AIFF file and imported it into MPEG Streamclip and exported it as another .AIFF file that was Stereo and 48kHz.
Is there a step I missed?

Need to make mono audio tracks stereo

I am sure this is a fairly basic question but I just can't seem to figure it out. Currently I am working on a project that is filmed with 1 actors lav mic on channel 1, and the other actors lav mic on channel 2. When I import this footage into Final Cut actor 1's audio comes out the left channel, and actor 2 out the right. I would like to make it so both mics are coming out of both speakers, so how do I go about that.
thank you.

I believe you're really talking about panning the audio to the center of each.

Mono audio recording to stereo

How can I split or change a single track mono audio recording so it will play as if it was in stereo (dual Track)
I'm using Premiere Elements 12.

aardga
The Fill in or Fill Right effect is an effect.
Do you know how to use effects in Premiere Elements 12? Same principles.
When you are in the Premiere Elements 12 Expert workspace and have clicked on fx Effects/Audio Effects/, you should see the following. The instructions clearly state: Drag and Drop an Effect on Clip(s)
If you are a new user to Premiere Elements video editing, the Premiere Elements 12 Help PDF might be a handy reference to get started.
http://helpx.adobe.com/pdf/premiere-elements_reference.pdf
But, never hesitate to ask for help if needed.
Please let us know if you are now OK with the information that you sought.
Thanks.
ATR

Why Does FCE capture DV audio as dual mono instead of stereo?

FCE captures DV audio as dual mono audio files instead of a single stereo audio file. You can see this if you "Show Movie Properties" in Quicktime. Files I captured in Premiere 6 years ago have a single stereo file. The problem is that the new dual mono format for DV won't play on the Final Cut Pro 3.04 installed on my wife's G4 (OS 10.4.11, Quicktime 7.6.2). FCP 3.04 doesn't see any audio for these dual mono files though it will play the video. It won't even create an audio waveform. But FCP 3.04 plays the older stereo audio clips captured in Premiere just fine. And if I export the dual mono files out of QT as a stereo file, then FCP 3.04 will play them just fine.
This lack of backward compatibility is quite frustrating. I can't seem to find a setting in FCE that will capture audio as a single stereo file. Why isn't NTSC DV always stereo? I guess maybe they had to go dual mono to facilitate surround sound panning in 5:1 or something. If nobody knows how to do this in FCE, I guess I'll just capture in FCP 3.04. I spent the better part of a day figuring out this hidden little tidbit. The lesson is don't try to go back!! We must always accelerate forward into newer versions and formats.

The problem is in your wife's machine. She is using a version of the OS and QuickTime that are much too new for the version of the software she's using. She really not not be using an OS newer than 10.4.10 and QT should 7.2 or earlier.
Yes. I was beginning to suspect that this was at the root cause of my issue. Thanks for the info. Frankly, my wife needs to buy a new Intel iMac so we'll both be able to work on the video I'm dumping. I had FCP 3 lying around from years ago and it's the only thing that might have worked on her old G4 AGP, so I thought I'd give it a try.

Grouping a clip's mono audio tracks after capture

Every time I drag a clip to the timeline, I have to click on the clip, and link the audio tracks as a stereo pair, which is really annoying. After a while, I realized that this is because whoever captured the clips forgot to group tracks a1 and a2 together, so now the clips all have two seperate mono tracks.
Now that the clips are already captured, how do I group the two audio tracks into a stereo pair?

Hey Red Truck,
It sounds like you're pretty much doing everything right. My guess is that if your footage was shot, "logged and transfered" with 4 mono audio tracks (like a lot of HD tapeless stuff does, XDCAM, P2) then this little trick might not actually work. If your footage was shot, logged and digitized as 2 mono tracks (again, maybe the diff being a 2 channel miniDV tape as opposed to the common 4 channel HD stuff) the trick usually works. But truthfully, once in a while I noticed it doesn't work and am still unable to explain why.
I kinda have a feeling that I've only ever used the trick on DV-NTSC and DVCPRO 50 two-channel footage and not on HD footage that typically comes in 4 channel mono off P2 and XDCAM.
I'll try to do a test at my end and see if I'm even in the ballpark on this guess. I'm also assuming you're trying this on 4-channel HD footage since you mentioned "...(or four) mono audio tracks" in your post. If you are, for the fun of it, media manage an HD clip down to DV-NTSC with 2 channel stereo audio and try the trick.
It does work as I've done it numerous times on shows in FCP when assist editors accidentally logged and batch captured hours and hours of footage as dual mono instead of stereo.

Stereo vs. Mono Audio Tracks - Why?

I tink one of the most annyoying features of Premiere is the way it handles audio tracks. I'm curious if this is just me or if anyone else out there is bothered by the same thing.
I work on a kids' show that has lots of music, sound effects and often 4 different mics for the actors at the same time. Since I record 2 mics on each cam (R and L), I like to import everything as mono clips so it breaks up my audio and I can label who's on what layer/track.
Sometimes I end up with 20 different audio tracks. Not because I NEED 20 layers, but because some of my SFX and music come in as stereo and others as mono and I can't put a mono-clip on a stereo clip or vice versa. This is the part that drives me crazy. I might need to add a 1-second swoosh SFX for some text coming in and I've got to go to layer 12 (scrolling way down), when just below the video there are 11 empty layers "available" but can't be used because they won't accept placement of that track because it's in stereo when the clip is mono. Make sense? So, really, instead of needing 20 tracks, I could EASILY get by with 10 IF Premiere had a way of not being so picky about whether a track is stero or mono and could just handle whatever you dish at it.

Maybe I have just used PrPro long enough, that I accept the Audio Tracks and channel-count. It makes perfect sense to me, but then maybe I am missing something important. If one does not have the necessary Audio Track, PrPro will create one for you.
This ARTICLE goes into much more detail.
Only thing that I would like changed, is the ability to drag Audio Tracks up/down, like on many DAW's. Otherwise, there is a little "dance," that needs to be done, to organize Audio Tracks.
Good luck,
Hunt

Sending transcoded clip to Premiere Pro with Mono audio

Hi there,
I noted that others had asked this question around August 2013 but haven't seen any progress made on this issue, which is that we prefer to edit in Premiere pro with mono audio tracks, but we are unable to make transcoded material come over from Prelude with mono audio.
We need to have total control over our audio tracks and for us in a News/ENG environment that also means fast turnaround production. So we want to choose the part of the XDCAM clip that we want in Prelude, send it to Premiere Pro and put the interview grab (for example) down on track 1 of the Timeline with only talent mike audio (which was recorded on the camera's channel 1) and not have to pan it or worry about doing much else to it. Then we cut the rest of the overlay with sound effects that were recorded on channel 2 going straight to track 2 on the timeline. When we transmit it to head office we send them two discrete channels of audio: talent/VO on Track 1 and effects on Track 2.
We only have a problem when Transcoding is involved. With the audio prefs in PrPro set to "Mono" everything else is fine, its just that when Prelude transcodes a video it makes the audio a hassle for us, because it can only come over to PrPro as a stereo audio track.
Adobe, is there ever going to be the ability to just make a Preference in Prelude to send the clips with Mono audio, as there is in Premiere Pro??
Or has anyone figured this out and I am just missing something?

In Adobe Media Encoder, set up a new preset that has the video and audio settings you want to have your source footage transcoded to:
Then name and save that preset. The next time you launch Prelude, the preset will be an option for you to select to use for transcoding your material.
MtD

Capturing Audio is 2 Mono channels, not Stereo!!!

I am capturing HDV. in the clip settings of the log and capture I check the option to capture as audio, but the clip is still imported as 2 mono files!
How do I remedy this?
Thanks
Adam

I do not believe you can. There is no option in capture settings to store the audio as stereo interleaved. There is apparently no display option in FCP to show a stereo file on a single track either.
But then, why does it really matter? The channels are linked in the timeline anyway, so for all intents and purposes, they can be edited as one. Often it can be very useful to have them seperated. Is there something you're trying to achieve that you presently cannot?
G5 QuadPPC2.5, Ram:12.5g, Magma PCIe-PCI expansion Mac OS X (10.4.7) 2X Hammerfall DSP Digiface+Multiface, Digi 002r, 4X UAD-1

Capturing mono VHS footage, how do I convert audio to stereo?

I am creating dvd's from some old VHS tapes, and the audio track is mono, I want to know how to convert audio to stereo? Do I start with the audio settings on Mono or stereo, and then what is the next step to get mono audio converted to stereo?
As always thanks in advance for reading and replying to my post.
Sebastian

SebastianMacLuver wrote:
I am creating dvd's from some old VHS tapes, and the audio track is mono, I want to know how to convert audio to stereo? Do I start with the audio settings on Mono or stereo, and then what is the next step to get mono audio converted to stereo?
Are you wanting to add a second channel of audio along side the mono track?
Or, are you wanting to double the mon track into a faux-stereo track?
Either way, DO start with a stereo track on your audio settings.
But if your VHS audio is not split into two separate channels of sound, then there is no way to get true stereo.
However, for a faux-stereo sound, try copying the original mono track, paste it to a second audio track then nudge just that track by one frame.
Listen to it and if it doesn't give enough presence to the overall sound, try another frame nudge until you get the sound you like.
This isn't true stereo but will create more of an aural landscape that might satisfy your request.

Encore transcoded audio into mono instead of stereo!!

OK here is my workflow:
Shot 1080p video on Sony XDCAM PMW-EX1 with stereo audio track. Imported footage using Sony XDCAM Transfer (makes .mov files). If you open the .mov files in QT Player they show as having Track 1 - Video, Track 2 - Audio (left), Track 3 - Audio (right). I then used QT player on most of these files to set in and out points and then copy the selections, saving them into referenced movie files. (Did not do this on all of them though). In QT Player, all of these movie files play fine. Dragging the movie files into Peak 5.2 you can see they have a Track 2 and Track 3 for the audio (stereo!).
Then I dragged all my movies (referenced and non) into Adobe Encore CS4 and selected everything and transcoded it all. (I dragged it to the timeline befoer transcoding.) The timeline shows just one audio track. It's the audio track that appeared when I dragged and dropped the video from the bin into the timeline. Should I have made a second audio track before dragging and dropping?
Because when I did Build, and it made the BMDV folder, then I burned that to a BD-R, and played it, it's in mono. All the AC3 files are in mono (left channel only). Why would that happen? Shouldn't it automatically get both channels of the sound and do stereo, or warn you before burning if it's in mono?

You are correct, sir. I'm surprised the software is not intelligent enough to recognize that. It really should be drag-and-drop simple. It should at least ask the user, "do you want to discard one audio track?"
To solve this I tried the following: go into Final Cut and export the audio as stereo AIF, then drop that in. I wanted to avoid having to re-transcode all the video, but when I did this, it decided to anyway, then had an error. So I deleted the transcode folders. Then I went to transcode again and now it's saying "Error Creating Transcode Folder" or whatever. Sigh.
This program just seems too finicky and not very robust. I'm going to upgrade to Final Cut Studio 7 and just use Compressor 3.5, which finally can export a BDMV folder that I can just burn to whatever.

Why can't I import an AAF sequence that references a single clip of mono audio ?

I have an AAF file that defines a sequence which contains a single clip of mono audio. When I try to import this into Premiere Pro I get an error telling me that it is unable to reference a file containing more than 2 audio streams. I'm assuming that a stream is synonymous with a channel which may be a mistake. If it is, then, as my audio is mono, it seems unlikely that I have more than 2 streams. I have checked what is in the AAF and the only part of it that has more than 1 channel is the 'Tape' mob. Is it possible that the import is failing because of this ?

I had this problem also, only the .m4v files could not be imported either! The strange thing was I was able to do this task with other home vids in the past without issue. I simply shut everything down and rebooted at this point as a last dithch effort to avoid a trip to the Apple store and then it worked - itunes was able to accept the import.

How can I switch my output audio from stereo to mono?

Hey,
I can only hear out of one ear and I would like to be able to listen to the other half of my music on my headphones, how can I switch my audio from stereo to mono?
Thanks!
Zach

http://www.radioshack.com/product/index.jsp?productId=2102690
http://www.scansound.com/index.php/stereo-to-mono-adapter.html
Or you could buy a mono/one ear headset. http://www.beso.com/2699431644/detail

I did a "Bounce - replace all tracks" and now all my mono audio tracks are stereo... What's the safest way to get them mono?

I don't think I unchecked the "Include volume and pan automation" checkbox before the "Bounce - replace all tracks" conversion. I hadn't added any volume or pan automations I figured: you can't include something I haven't added, although I did probably have the pan controls set in the mixer. Anyway, now I want to convert my six (previously mono) tracks from stereo back to mono, preserving as much as possible the original mono sound quality before it was converted to stereo, so that I can start mixing. Every MP3 I've exported is ignoring the pan settings I have in the mixer, I suspect due to the fact that the audio for each track is now stereo (I changed the tracks back to "mono" in the mixer but the audio remains in stereo). Unfortunately I don't have any unused audio files in the audio bin and I killed the undo history as well.

Thats what I came up with:
As you can see I got a stereo file on track 1 to start with,
Now go to the corresponding channel strip and switch to mono,
Perform a BIP to a new track
and the result will be in mono.
Regards

Mono audio in stereo clips...

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