Convert audio from mono to stereo

I have imported video and audio from a camera with microphone, and the audio is only playing out of the left speaker. This is despite the fact that both A1 and A2 channels in the timeline appear to have audio. I'm new to this, and any help to get the audio to come out of both speakers would be great!

Oh, wait a minute, I thought you meant you only had one audio track, and wanted its sound to come out both speakers. But now that I read your question again, you say that you have an A1 and A2. In that case, I dunno why you should have one dead audio track, unless you've accidentally turned it off, muted it, over on the left, at the head of the track. Or, if the tracks are not linked, maybe you've accidentally pulled its volume line down to the bottom (that red line running down each audio track that determines the volume level).
If not, somebody else will have to solve that for you. Sorry.

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Setting audio recording from mono to stereo

How do you set the audio recording from mono to sterio on windows vista?

Select them all the timeline and press Opt-L.

Change Mixdown from Mono to Stereo

I'm sorry if this has come up previously but I coudn't find anything that exactly related to my situation.
First let me say I bought CS5.5 about two years ago and after trying it a few times, I found I did not like all the "missing functions like Group Tracks and the fact that it seemed to work slower than my old 1.5.
Recently I decided to give it another try and be patient. I had to assembe two VOs with SFX and various production music beds. When I was happy with the mix, I was ready to do a mixdown...only to discover that my mixdown was in Mono. Mono? I tried to find where to convert it to stereo. After searching help and then this forum, it appears that there is no way to choose Strero or Momo....except apparently only when initially naming the Multitrack session. SAY IT AIN'T SO!!! Does this mean I have to start all over with a new session file and spend all that time again? If this is so, WHY would they remove the option to mixdown in Mono OR Stereo which seem so common sense and was an option in previous Audition versions. I never understood software developers who seem to want to take away functions that worked.
Am I wrong? Is there any way to choose or change a mixdown in a session? I like choice. Choice is good.
Cheers
RoosterKoop Ken

For clarity's sake, a stereo track with audio on one side is still a stereo track, not a mono track. So you're not really changing mono to stereo, you're just routing the active channel to fill both left and right sides. There are a number of ways to do that. I like #3 myself.
Larry Jordan - Premiere Pro CS6: Isolate Audio Channels | Final Cut Pro Training & Classes

From Mono to Stereo or from one channel to two?

Hi,
I don't believe it's my camera's fault, because it's a newer HD camera--but for some reason the audio is only coming out in one channel.
I had to convert the file from its native .mts format to a .mp4 format and used Adobe Media Encoder CS4. When converting, I made sure to select Stereo.
Unfortunately, the audio does come out on one speaker only,even though it says Stereo.
I think I might have a misunderstanding between stereo and channels?
Does anyone know how can I easily fix this in Soundbooth? Or is there an option I am missing in Media Encoder?
Thanks a ton!
Mario

Hey!
I actually figured it out (you were on the right track with multi-tracking).
Here is what you do:
1. Right click the audio file and select "Insert Channels into New Multitrack File".
2. Delete the track in the "Audio 3" channel as it should be empty.
3. Select audio from "Audio 1" channel and just COPY + PASTE -- it should now appear in the "Audio 3" channel.
4. Copy the new audio track from the "Audio 3" channel.
4. Delete the audio out of "Audio 1" channel and move the track from "Audio 3" in it's place.
5. Delete "Audio 3" channel.
6. Go back to your original file (in the upper right pane).
7. Select all (CTRL + A) and delete the audio.
8. Jump back to your New Multitrack File, select all (CTRL + A) and copy it (CTRL + C).
9. Back to your video file now...and PASTE!
There ya go!

Audio capture Mono or stereo for a mono lav mic?

We recorded a video where we captured the sound using a lav mic recording mono on one channel.
When I capture the tape (audio and video) into Final Cut Pro, would it be better to capture in mono or stereo? Thanks.

ericward6547 wrote:
Hi Jim, the filming is already finished. I'm talking about putting my footage into final cut. I just don't know if I should select mono or stereo in the clip settings when I capture from my camera.
That's what I was talking about too.
What is your final deliverable? for the web? For home enjoyment on tv, for broadcast? for cinema projection? Each of these has it's own aural space that you should be mixing for.
Personally, I like to put everything in the timeline, even if eventually I don't use it and remove it later. If for nothing else than the odd piece of room tone that becomes necessary.
But if you've got one person talking, in mono, bring him in in mono, and pan the track to where you want it in your mix.

Trying to take movie from mono to stereo...

well, fake stereo. I recorded a play using multiple mics, through a board, and into camera resulting in a mono soundtrack in the right channel. OOOPPS. So I thought no problem, I will just dupe the audio and put it in the left channel. The only problem is I still can't get any sound to come out of the left side. Any thoughts?
Befuddled,
David
Imac G5 Mac OS X (10.3.9)

Another way to do this (I just had to use right channel sound from an external mic on one camera to provide sound for cuts from 2 cameras), is to extract the audio, then locate the extracted sound file within the imovie project.
This file can be imported into the open-source program Audacity (although garageband is supposed to work too, but I found audacity easier), then simply cut the right channel audio and paste to the left channel. Save and you are done.....I might have had to re-paste the extracted sound track into the timeline, but that was it.
Might be the way to go without quicktime pro.

Converting Audio From 24 fps to 29.97

Hello All,
Background:
Transferred 16mm mag tracks (24 fps) to avi format.
Transferred a 3/4" video tape with image and audio which I believe is 29.97 fps.
Using Audition I Mixed the 16mm tracks at 48000 Hz.
Extracted the 29.97 fps sound track from the 3/4" tape transfer.
This is from the 1980's, so no time clock, no time code
It's an hour film, but I can easily separate the sound track for 30 minutes each
Both sound tracks are the same, however when I try syncing they drift obviously.
I need to swap out the sound track that is on the 3/4 inch transfer and insert the 16mm mag track mix, so the final result would be the image is from the 3/4" and the sound is from the 16mm mag track mix
Is there any way I can adjust my audio to get these two to match
Thanks

Bob Howes wrote:
It might be worth an attempt at the sync/stretch method Richard Knight suggests but I wouldn't be too hopeful. My memories of 16mm mag players is that the multiple machines would be synced to each other (and a projector/viewer of some kind) but, other than their own little world, the speed could drift horribly--and not consistently.
Bob - I'm rather new to premiere and audition and I've been working with the different tracks to see if I could possibly find sync points and yes there are, but the sync/stretch method is a challenge but quite possible a solution. I think it can be done with alot of grunt work and watching tutorials from both adobe and lynda.com. Plural Eyes would make it so easy but the question is how to make the U-matic the master and the 16mm to conform.
However, as implied before, the 24/29.97 issue probably doesn't have any significance at this stage. They refer to how the film is projected/video is scanned (don't get me started on telecine projectors with five bladed shutters!) but whatever the scan rate the audio SOUNDS the same speed. It's sort of like taking a reel to reel tape at 15ips and dubbing it to 7.5ips. Even though the absolute speed has changed, the length of the playback stays the same. I strongly suspect this is all just a matter of old 16mm and U-matic stuff not being locked to anything in particular and drifting like mad in terms of speed.
Bob I believe you're correct, and oh what times these are for analog lost in the future - a brave new world. It will be done.... somehow ;-)
Thanks again all - This will go either very fast or very slow

Converted mono to stereo

I converted a left channel recording from imovie hd to both channels using quicktime. Now the audio track is way to long even though the size is the same. Format: Linear PCM Channels: Mono Rate: 48 (the rate decreases the size but it doesn't matter). Any ideas how to keep the audio the same length.

I can't reproduce the problem with "Save as..." again, so the tracks switched from mono to stereo somewhere between the time I recorded them and by the time I was done tweaking their EQ and compression settings. I don't know how to delete or edit my discussion question above, sorry!

Mono to stereo converter for 6600

Hey guys,
Does anyone have any clue how to convert music output from mono to stereo in the nokia 6600?
Thanks,
I need a reply soon plz!!!
Thanx

It is a physical impossibility. If there is only one line out signal, you can't convert it to two with any converter (software or hardware).
If you really must have stereo output, then you need a new phone.

Mono to stereo in audacity, how?

I have a mono iMovie, I have extracted audio and opened with Audacity, but I cannot select just the left track and copy to the right track!!! help anybody know how to do this, it seems like it should be simple and I'm missing something

Claire,
In addition to Dave's suggestions, here's another way to do it using only iMovie.
What you really want to do is go from stereo to mono. You see what you currently have is audio sitting on the left side of your stereo pair.
By converting that to mono, you will get the same mono audio to come out of both speakers.
Here's how.
First select File>Share>QuickTime and choose Expert Setting from the dropdown menu. If you only wish to convert audio from a particular video clip, check the "Share selected clips only" check box.
Now click Share and select Sound to AIFF from the Export dropdown the 44.1 kHz 16 bit Mono from the Use dropdown and then click Save.
Reimport the resulting file and you'll have mono audio coming out of both speakers.
Matt

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.

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

How to convert mono to stereo audio

I updated my software and now I cant seem convert audio recorded on a single channel mic to both channels with the new version of iMovie. I know with previous versions you could open the file in Quicktime, but the Quicktime software is also new and doesnt have the same options. Reverting back to iMovie 9 also doesnt seem to be an option. Any suggestions/advice??
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

Mono to stereo or combine audio

I have an iMovie that is an electronic white board. I recorded an audio file from my Nikon (so I would think it would be stereo) and added that to the whiteboard video. I've been told the audio is mono, but I don't know how to verify that or how to correct it. 1. How can I tell if the audio track is mono or stereo? 2. If it is mono can I convert it to stereo or play it as mono on both tracks to simulate stereo? Thanks.

Hi
In iMovie You can not do any of it.
But You can
• From Event's - iPhoto Videos take it and drop it into a new Project
• From Project You export it as QuickTime and as Audio only (.aiff)
• This file You can open in an Audio/Sound-Editor as Audacity (free on Internet) or GarageBand ( might work ? )
And here in e.g. Audacity You can see if the Right and Left track are identical = MONO or have slight differences. I do this by invert one track and add it to the other - if it is silent - then the tracks are in Mono if not then You've got a Stereo Sound from start.
Mono to Stereo = Impossibly
Mono out via Left and Right speaker - Just copy the audio in one track and paste it into the other - BUT still when You listen all will come from center. Simulated Stereo - I've never seen any working application that can produce this.
When done in Audacity - then Save (still as .aiff) and import this to Your Movie project.
Far from so easy as in FinalCut Pro. Where You just pan audio to the other canal.
Yours Bengt W

How to convert false (dual mono) stereo files ?

I imported an enormous amount of regions from a Final Cut Pro project, and because the cameras each had mono mics but were recording audio in stereo, all the audio files are technically stereo, but contain only mono information.
So I've got hundreds of stereo-interleaved files in my Logic session, but each file contains only mono information, so my project is twice the size it needs to be.
Can anyone suggest a way to remove all that redundant information ? What I want to do is split all the interleaved files, then select all the .R files and delete them, but I don't see any way to accomplish this in Logic, other than file-by-file (I have 500 of them...)
Anyone been down this path ?
Thanks!
-James

Hey, thanks for all the suggestions, Seeren!
I'm not sure how your method is generating only .L files for you--when I split interleaved, I always get both sides... but not a big deal. It's easy enough to delete half the audio.
The real problem is getting the files replaced without losing all the arrange work: your method requires manually replacing the old stereo files with the new mono files in the arrange, which would be a ton of work in large projects like mine...
But... I did find a solution to this--it's not exactly elegant, though, because it requires some filename hacking:
Turns out if you have a reference to a stereo interleaved file in your project, and you replace it with a mono file of exactly the same length and filename, Logic will happily accept the substitution without a complaint. So the way to replace all the stereo files with the .L files is:
1) Copy the stereo interleaved files into split stereo, then remove the new split stereo files from the audio bin (but leave them on disk)
2) Close the project
3) Remove the original stereo files from the "Audio Files" folder, and delete the .R files.
...that's all easy... then...
4) Rename all those .L files, removing the .L so they have the same names as the original stereo files
5) Reopen your project--Logic will now refer to the new mono files, not the original stereo files
Step #4 requires some hacking to do efficiently: I used the command line to rename all those files quickly. There are probably utilities out there that could have done the job with a GUI, and AppleScript could probably do it, too.
Anyway... this works, if it's helpful to anyone else.
But ultimately I guess this is a feature request: it's cool that Logic makes it so easy to manipulate split stereo files as a single unit. But there are occasional times when you need to manipulate stereo files individually. There should be a track command in the arrange that takes a stereo track and replaces it with two mono tracks... rather surprising this doesn't seem to exist (it's one mouse click in ProTools [ducking])...
-James

Convert audio from mono to stereo

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