Route audio left channel to mono master

Our videographer records all audio to the left channel only, which leaves the right channel empty. Is there any way to route only the left channel to both the left and right master, or to route only the left channel to a mono output?

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Eddie
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Record audio Left channel mono playback

I'm new to Captivate and setting up a microphone for recording audio. Recording equipment is a single microphone into an E-Mu 0404 USB interface. The interface has 2 mic inputs. The mic is plugged into the left channel. Sound is recorded fine, but only plays back on the left channel. How can I get the single channel treated as mono so playback is on both ears?
Thanks

Hi there
Assuming you can do so, perhaps consider a Y connector that makes the mic feed into both channels.
Also, report this to Adobe as I've seen many posts here regarding stereo and only hearing one channel.
Click here to visit the Wish Form/Bug Reporting Form
Cheers... Rick
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CAPTURE AUDIO MIXES LEFT CHANNEL TO MONO

Everytime I capture now, or batch, or capture a single logged clip, the stereo audio comes in as mono, using only the left channel. The right channel audio is lost.
I searched the postings, and found this was happening with a lot of people, not just FCP 5.1 HD, but with FCE, too. No resolution or fix as far as I could see.
Anyone know how to correct this major bug? I really need stereo audio!
Thanks,
Norris

After a lot of research, and NO help from calling Apple tech support, I finally determined this (which has to do with HD/1080i/60 only -- I am not sure about NTSC settings):
In the Clip Settings tab, in "Log and Capture" (in HD) there is a little box next to the simulated VU audio levels meters. Click that box. It should toggle on/off two little lines that combine audio channel 1 and audio channel 2. When the little lines are there, that is STEREO. WHen they are not, in my FCP 5, it mixes both tracks to mono from channel 2 (Left).
As for your other question -- yes, you can manually go into the logs and change the settings, and then recapture.
a pain this is, huh? And no written mention of it in any manual.
NOW - as for previewing the audio while logging and capturing? I still cannot do that and have been waiting two (2) weeks for a reply from an Apple tech support guy who was supposed to be researching this for me.

Audio Left Channel is absent in app-specific instance

Hi, All:
I was just advised that this topic belongs here in the MSDN forums, so moved the topic from the Community. I am not sure that this particular forum is the correct one. If not, please advise where to put this question.
Here is my original question:
I have created an application (in Delphi) which uses audio output, but recently discovered that the left channel is missing. There is nothing in my program that would do this.
To further test this application, I did the following:
1. Used the Windows PlaySound command to output a simple WAV file. I moved this line to the top most part of the program before anything else was created or intialized.
2. This wav plays immediately on launching the program, but as with the rest of the program (which using SAPI, text2speech), the left audio channel is absent.
3. If I move the program (profviewer.exe) to another location than where the application is installed, the left channel returns.
4. If I change the name of the program to e.g. "test.exe" the left channel returns.
5. On my Win7 systems, if I changed the name from "profviewer.exe" to "test.exe" then ran the application to the initial password dialog then cancelled, then rechanged the name from "test.exe" back to "profviewer.exe"
I discovered that this audio channel anomaly was corrected.
6. On my Win8.1 system, changing the name of the app as in #5 did not fix the audio channel problem.
My guess is that there is some application specific registry setting that controls this. Could you tell me where to look for this so I can fix those systems with Win8.1? Or failing that is there some other work around that I could apply to get the
left channel audio back?
Thank you,
Chuck Belanger

Hi, Matthew:
Here is the output of Meters.exe from a user with Win8.1 and who has no left audio channel in the program (Profviewer.exe). Hope this helps to fix this head scratching issue.
Chuck
-- Playback devices --
Realtek Digital Output (Realtek High Definition Audio)
Peak: 0
Mute: 0
Volume range: 0% to 100% (-96 dB to 0 dB in steps of 1.5 dB)
Master: 100% (0 dB)
Channel 1 of 2: 100% (0 dB)
Channel 2 of 2: 100% (0 dB)
Speakers (Realtek High Definition Audio)
Peak: 0.89008
Mute: 0
Volume range: 0% to 100% (-65.25 dB to 0 dB in steps of 0.03125 dB)
Master: 100% (0 dB)
Channel 1 of 2: 100% (0 dB)
Channel 2 of 2: 100% (0 dB)
Active session #1
Peak value: 0.35822
Icon path:
Display name:
Grouping parameter: {e82cafd7-7990-453b-945d-3ab7524368ea}
Process ID: 17284 (single-process)
Session identifier: {0.0.0.00000000}.{6b1b2275-77cc-4056-ad76-4c9fcc30e373}|\Device\HarddiskVolume5\Program Files (x86)\NMT\NMT Treeview Version 3.0\NMT Treeview Professional\ProfViewer.exe%b{00000000-0000-0000-0000-000000000000}
Session instance identifier: {0.0.0.00000000}.{6b1b2275-77cc-4056-ad76-4c9fcc30e373}|\Device\HarddiskVolume5\Program Files (x86)\NMT\NMT Treeview Version 3.0\NMT Treeview Professional\ProfViewer.exe%b{00000000-0000-0000-0000-000000000000}|1%b17284
System sounds session: no
HWND: 0x000E2560 Scan Text
HWND: 0x000D02A4 NMT TreeView - Professional Version->Client: test 1 test 1| Session: 2/14/2015 8:38:27 AM| Mode: CLIENTS
HWND: 0x001E111A
Master volume: 1 (0 dB FS)
Not muted
Channel #1 volume: 0 (-1.#INF dB FS)
Channel #2 volume: 1 (0 dB FS)
Audials Sound Capturing (Audials Sound Capturing)
Peak: 0
Mute: 0
Volume range: 0% to 100% (-96 dB to 0 dB in steps of 1.5 dB)
Master: 100% (0 dB)
Channel 1 of 2: 100% (0 dB)
Channel 2 of 2: 100% (0 dB)
-- Recording devices --
Microphone (Realtek High Definition Audio)
Peak: 0
Mute: 0
Volume range: 0% to 100% (-17.25 dB to 30 dB in steps of 0.03125 dB)
Master: 100% (30 dB)
Channel 1 of 2: 100% (30 dB)
Channel 2 of 2: 100% (30 dB)

Audio - left channel only

I have 1 Audio Channel. It is panned to the center '0', but is still only coming through the left speaker. How do I balance it to come out of both speakers?
Thanks.

if your audio track is panned to center, then the problem is with the speakers or the speaker jack on the computer. You can look in the system preferences for the computer and make sure the balance isn't set to one side or the other. But you already did the only think you can do in FCP to have audio come out of both speakers. Check an iTunes song, or some other audio, and see if THAT comes out of both speakers.

Separating left channel and right channel

My composer needs a QT file that requires the following:
1. h.264 compression (for upload)
Audio: Left channel temp music / Right channel DIA/Vo/SFX
HOW DO I SEPARATE THE CHANNELS?

duplicate your sequence (you can always get back if you mess up)
in the dupe sequence, if your channels are now stereo, highlight the track,press option L (lower case) to make them mono. in your sequence settings define the audio outputs to be 2 mono. control click in the track near the on/off button and assign channels to either 1 or 2.

Help I only get a mono audio in the left channel now

I am only getting a left channel mono sound when rendering
My videos with iMovie on my iPod Touch 4g 32 gb.
My first iMovie came out fine with multiple clips and all in stereo
I can find no help on the issue.

They are either linked and/or a stereo pair. If you see the name of the clip underlined they are linked...press "Command + L". The undeline should go away. If you see arrows on the clips pointing to one another then that is a stereo pair. Press "Option + L" and the triangles should go away. You can then use "Command + L" to relink you video with your audio...if you so choose.

Premiere Elements 13 (not Pro), recorded a video with mono mic input (left channel only), need to create 2-channel (left and right) audio track for finished product. Help?

The question says it all. I have been all over the tutorials as well as the menus inside Premiere 13 and cannot find how to edit the audio track beyond basic balance, volume, etc.
I can see the Audio 1 track, shows audio in left channel only, but it will not respond to attempts to select, cut/copy, paste, etc.
Basically I just want to turn one-channel audio into two-channel audio.

25424...
Sure you do not want to give the Fill Left and Fill Right another try?
According to the Adobe document Adobe Premiere Elements Help | Effects reference
Fill Left, Fill Right
The Fill Left effect duplicates the left channel information of the audio clip and places it in the right channel, discarding the original clip’s right channel information. The Fill Right effect duplicates the right channel information and places it in the left channel, discarding the existing left channel information. For example, you might use this effect on footage shot with a monaural microphone plugged into only one channel of a camcorder, extending the voice of a speaker from one channel to both.
From what you wrote, your Premiere Pro video seems to be saying the same.
If that Premiere Elements Fill Left or Fill Right is no go, you might want to explore what you can do in this regard using the free audio editor Audacity.
Audacity: Free Audio Editor and Recorder
And, then import the Audacity edited audio back into Premiere Elements project as source media.
Is the speaker system OK?
We will be watching for your results.
Thanks for the follow up.
ATR

How can I get right and left channels out of an interleaved audio file?

Hi, everyone, I'm still on Logic 8))))So, have a question))I need to split a stereo audio file into two mono left and right channels, I could do it in audio editors, and somehow dunno how to do it in Logic...Anyone can help?

Do a long click on the mono-stereo button of the audio track. From the flipmenu, choose L.
Copy the Region to another track.
From that other track's mono-stereo button flipmenu, choose R.
Voila, direct access to left and right channels.
Christian

CC 2014: all mono clips on left channel only

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.
Stereo files are playing stereo, no issues so far.
What's going on here?

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!

Routing left channel to left and right

I have a split-track audio file I have brought into Logic Pro 8, with instrumental accompaniment in the left channel, and voices in the right. I would like to have the left channel appear in both the left and right channels in the final mixdown. Is there a simple way to accomplish this in Logic?
Thanks!
Brian

If you click and hold onto the interleaved symbol at the bottom of the channelstrip a small menue opens giving you the option to set the stereo channel to "mono" - "left" - "right" and "surround". So set it to "left" for the channel carrying the playback and then just use the pan pot to pan the channel where you want it to be in your final mix (center by default).

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.

If I have audio coming from left channel. How do I make same audio Left and Right?

Hi there,
I've recorded some footage with a mono mic and it recorded the audio on the left channel of the audio. In FCP. I placed this audio clip as a part of a multi-cam clip but the sound is only coming out the left. Is there a way to set this audio to mono or to make them play the same levels through the left and right channels?
Thanks,
Caleb

Wow! 30 Seconds later, I figured it out. LOL
Under Inspector for audio, you just click on channel configuration, click on channel and use "Dual Mono" mode. Thanks Caleb!

Push two audio tracks to Right and Left channels...How?

I have two stereo tracks. One is interview sound and the other is a bed of music. My client has asked that I write to tape with the interview pushed to the left channel and the music to the right. How do I best do that?
Thanks.

just to clarify Kip's option #2
open the Sequence Settings (Cmd-0) for your edit, and select the Audio Outputs tab ... there you should change the grouping from "Stereo" to "Dual Mono", then click OK
if you're only working with 2 channels, and are simply switching from stereo to dula mono then that should do it...
...but if you want to check (or swap output channels or other fancy footwork) then in the timeline, control-click the Auto Selects button on track A1 and in the popup menu look at the Audio Outputs submenu ... thats where you can select to which channel you want to send the audio track

Stereo audio in left channel only.

Hi,
I have a strange problem with one of my projects.
I have created a large number of "talking head" videos/projects. I export them to FLV using one of PREs default settings. For just one of these projects I get audio in the left channel only. All other clips are OK.
When I play the clips on the timeline the audio is perfect in both channels. So somewhere in the rendering/output process I loose the right channel.
What am I missing here?
Thanks in advance.

Hi and thanks for all input.
Yes I use a mono mic, but the camera puts the sound on both channels.
When I play the timeline I hear the voice in both channels.
The timeline audio track shows waveforms on both channels.
Here is a pic of the timeline:
The project is corrupt somehow. I just tried creating a new project with the same video files and made a short flv out of it and it comes out OK.
I will try to redo this one which leads me to another question which I will post in another thread if not already answered.
Thanks for your input.

Route audio left channel to mono master

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