Converting left channel audio into stereo file

I'm using an edirol ua 25 which has two inputs, 1 which is a left channel and 2 a right channel. As i'm using the first input, the recorded audio pans hard left, how do I go about converting the recorded audio into a central stereo file?

Why do you want to change it to stereo? It isn't a stereo (two-channel) recording, it's a mono, single-channel recording.
Mono is not somehow "worse" than stereo, don't feel that need that everything should be recorded to two channels, it's a waste of resources.
You can pan it anywhere in the stereo field - with the pan knob central, the mono track will be centered in the stereo field. You can pan it left or right accordingly.

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Imported DV plays only left channel audio

In working with iMovie HD 6, I've imported video from my DV camera and I'm only getting sound from the left channel (I used a lapel mic plugged into the camera while I was recording). Is there a way to mix the left channel audio into stereo, or at least two channel mono so that my movie and subsequent DVD project will play sound in both channels? I'd prefer to run the fix within iMovie, but will consider exporting if necessary. I can't recreate the original interview without a lot of work.

Welcome to iMovie Discussions.
Yep, you can do it in GarageBand, just setting it to move the mono channel into both channels.
Or you could use the free, downloadable "Audacity", and just select the left channel, then copy it, and paste it into the empty right channel, like this.
However, to use the wonderful "Audacity", you've got to find your original audio in iMovie, then remove it from within its hidden storage, whereas GarageBand just "knows" where to find the audio if you send your movie there, so click on Share and then GarageBand, where you can select the Movie Sound track, and just turn the little 'panning' control, in the Mixer column, to the centre.

How can left channel audio be put on right side?

how can left channel audio be put on right side? or made into mono track as a work around?

The Loop browser and the track have a fixed size. You can only hide the Loop Browser by pressing the Loops button in the footer to make the time line longer.
Or drag the resize corners to enlarge the GarageBand application window. Have you set your display to the maximum possible resolution in the for your screen in the System preferences > Display?
If you have only a small 13" screen, try to resize the GB WIndow beyond the bounds of the screen by pushing the trackheads beyond the left border and dragging the right resize corner.
-- Léonie

Left channel audio interference (WinXP)

Hi,
I am running windows XP in bootcamp on MBP 2.3Ghz core2duo.
The left channel audio has a constantly crackling when playing. If I plug in headphones the problem is transferred to theleft channel in the headphones so it isnt the speaker. The problem does not exist in OSX, and strangely can be intermittently fixed by restarting windows. However this is hit and miss and annoying!
Is this a driver issue?
I've tried some other suggestions such as disabling wireless and killing the bootcamp process but no luck...
Thoughts appreciated!
JT

Try resetting the NVRAM and SMC
Intel-based Macs: Resetting the System Management Controller (SMC)
About NVRAM and PRAM

Working with BOTH channels of a stereo file INDIVIDUALLY?

Most of the content I use are interleaved stereo files. The sample editor displays both the right and the left channel of stereo files but my question is: How can we actually work with either the left or the right channel. It's great that I can see both in the sample editor but is there anything I can do in Logic to separate an interleaved file into two channels?
Thanks!

bounce it out or copy/convert from the audio bin, as a split stereo file. rename as Left and Right rather than .L and .R - then reimport as two mono wavs

Converting 2 channel audio from AVCHD to 5.1 audio for bluray

Hello,
I am looking to put AVCHD video files (*.MTS) containing 5.1 audio and 2-channel (stereo) audio onto bluray. I would like to convert the 2 channel audio to 5.1 audio, so that all of the files can be encoded onto bluray with 5.1 audio in Encore. I am using Premiere Pro CS6 version 6.0.3. I have tried to bring the MTS files into Premiere Pro, and convert stereo audio to 5.1 using Audition. However when the file is exported to Encore, upon transcoding there is no audio. Please let me know what is the best way to resolve this. Also, would I require something like Surcode plugin, or are there other ways to get around this? Thanks.

"Hi seaspray07,
"Hope this clarifies."
sorry it doesn't - it confuses me and I don't get why you want to do it this complicated way ;-)
1. If you have problems try to simplify your workflow. Why do you try to work with dynamic link in Encore? This isn't the classic route and I don't see why you need it in this case.
2. In a classical workflow you load final encoded audio and video files in Encore - in this case a .m4v and a .ac3 file encoded in Adobe Media Encoder.
3. To get this files you create a Premiere timeline with 5.1 master audio and load your clips onto it.
For all 5.1 clips Premiere will create a 5.1 audio track. For all stereo clips Premiere will create a stereo audio rack.
--> Keep in Mind you can't export a premiere audio track. That isn't possible even though this would be handy in a lot of situations. You alway only export the master audio track of a timeline. That master audio track get's it input from all audio tracks of a timeline. If there is a 5.1 audio track 6 channes are mixed to the master audio - if it's only a stereo track only L, R get's mixed up to the 5.1 master.
The master audio track is what you can hear if you play back a timeline.
4. Why do you want to convert stereo audio tracks into 5.1 audio tracks in the timeline? It needs much more filesize/ ram slows down your playback and gives you a unhandy viewing with lots of emty audio channels... Why dont store and view a stereo track as a stereo track?
5. If you have placed your stereo and 5.1 audio tracks on the timeline you can export the final mix via Adobe Media Encoder with the Surcode plugin as Dolby Digital 5.1 .ac3
"I sent the audio to Audition because I wanted to modify the audio file from stereo to 5.1, and bring it back into PrPro to combine with the video clip from the corresponding MTS file..."
That doesn't make any sense... because Premiere does it automatically for you without Audition. You simply have to do nothing - just place your stereo clip on the timeline and ready.
If you want to use Audition you have to have a real reason for it - for example do extensive audio work and mastering Tasks - conform it to R128 loudness or something like that.
Does this make sense to you? ;-)

Left channel audio malfunction

My left audio channel in my headphone jack cut out yesterday, I'm plugged into speakers and I get nothing but a high pitched whine out of the left channel. It seems to make different noises based on what the computer's doing internally too (drive spinning, even searching in spotlight).
I've plugged in and out multiple times, I've restarted a few times, I tried opening garageband (heard that was a fix once..), I messed around with the sound preferences and the audio and midi setup.
I'm pretty stumped and this sound is very annoying, any ideas are appreciated.
Thanks,
Ben
PS- anyone know why my computer won't shut down/restart? It just goes to gray screen and I have to manual shutdown...
2011 MacMini
2.7 GHz Intel Core i7
16 GB 1333 MHz DDR3
AMD Radeon HD 6630M 256 MB
OS X 10.9.2

Try resetting the NVRAM and SMC
Intel-based Macs: Resetting the System Management Controller (SMC)
About NVRAM and PRAM

IPhone - left channel audio only (speakers & headphones)

I own an iPhone 3G. Audio only comes from the left channel in iTunes, apps etc. This is true whether there are headphones connected or not, which seems to suggest it's not simply a poor connection in the stereo jack.
From what I read there's no software balance control but I wonder if this issue is common or resolvable. I'd love to fix this!
Any suggestions? What can I do to fix it?
Thanks in advance!

The iPhone includes a single external speaker, but you should hear sound out of both earbuds when listening to music with headphones.
If the same occurs with more than one set of earbuds or headphones, your iPhone probably has a hardware problem if the standard troubleshooting steps do not resolve this which in order are powering your iPhone off and on, an iPhone reset, restoring your iPhone with iTunes from your iPhone's backup, and restoring your iPhone with iTunes as a new iPhone or not from your iPhone's backup.
If no change after these troubleshooting steps and the same occurs with more than one set of earbuds or headphones, you can call AppleCare or make an appointment at an Apple store if there is one nearby.

Help... Why did the dvd to ipod converter split one movie into 2 files?

I have a 80GB Video Ipod and I'm confused on why when I ripped a dvd using the dvd to ipod converter for mac program it split the dvd into 2 files.. Is there a way I can merge the files together so it is 1 file?.. I would apprciate any help or suggestions...
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Go to their support forum and ask-you will get a better answer from people who actually use the program.
It's not a paid for program is it?
A totally free program that rips and converts DVD's for Macs can be found here: http://handbrake.m0k.org/
Why would anyone on a Mac pay for a DVD rip program?

Left Channel Audio - Losing It

Hey everyone -
I just finished a video for my office in iMovie HD - when I was producing the piece through outboard speaker the audio was fine (left channel only) now that I'm checking through my internal speakers (iMac) I am losing the left channel all together.
The video was recorded on a Canon XH A1 with a mic in the left XLR input only, how can I export to Quicktime without losing that left channel - it is there but very faint.
I do have Logic Studio - would that help?
Thanks to all!

Try resetting the NVRAM and SMC
Intel-based Macs: Resetting the System Management Controller (SMC)
About NVRAM and PRAM

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Best practice for exporting an 8-channel Quicktime's audio into stereo and 5.1 files for Encore BD?

The subject pretty much says it all. A client has given me a Quicktimde ProResHQ with 8 channels of audio.
I understand how to export the stereo channels (1 and 2) from Premiere but how are channels 3-8 normally handled for proper 5.1 surround authoring in Encore?
Thanks for any advice - I was unable to find specifics when searching previous posts.

how are channels 3-8 normally handled for proper 5.1 surround authoring in Encore?
You must create the 5.1 outside Encore. Note that from Premiere it requires the optional Surcode.
Encore essentially passes the 5.1 through to the build process; you do not get preview of the 5.1 audio.

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We've recently upgraded to CC across our department, and I'm importing footage shot on our Canon XF-105 using the MXF wrapper. In 5.5 I was able to simply drag and drop from the project into the timeline and have both channels of audio recorded there. In CC I can only see the audio recorded with channel 1 and my clip in this instance was plugged into channel 2. Is this something that is known? Am I missing something from the setup of the project?
Thanks in advance for your help!
Anything you need to know about the project or the files, give me a shout!
Cheers,
Paul

A lot of things have changed since 5.5.
You need to set up Preferences before importing.
Set Stereo to Mono in Audio / Default Audio Tracks.
Or Modify the audio channels of the clips in the Project Window.

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Hello friends,
Can you help me to find out the way to convert an internal table data into a flat file.
the problem is that my internal table contains fields with data type INT also.

please go through the code and the parameter passed to the finction module ... since you didn't show your coding i am giving you the sample code also ..
REPORT y_ss_test_ekko .
* To hold selection data
DATA: i_ekko TYPE STANDARD TABLE OF ekko.
* To hold converted text data
DATA: i_text(4096) TYPE c OCCURS 0.
* Selection Screen
PARAMETERS: p_ebeln LIKE ekko-ebeln.
* Select data into an ITAB based on the selection Criteria
SELECT * FROM ekko
         INTO TABLE i_ekko
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IF NOT i_ekko[] IS INITIAL.
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       CHANGING
            i_tab_converted_data = i_text
       EXCEPTIONS
            conversion_failed    = 1
            OTHERS               = 2.
IF sy-subrc <> 0.
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ELSE.
*   Download convert data to Presentation Server
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ENDIF.
ENDIF.
reward points if it is usefull   ....
Girish

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Here's some points that might help you with your question:
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2. You don't have to have the non-free (Reader) version of Acrobat to run scripts, but you will have much more options available to you if you had Acrobat Pro or Standard.
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Converting left channel audio into stereo file

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