Turning Stereo audio to mono

I have the Sony PMW-EXR1. The camera has 2 XLR audio inputs. I took some video using 2 lapel mics plugged into each of the inputs. Input 1 recorded to the left side and input 2 recorded to the right side. I want all audio to be turned into mono.  I can't figure out how to do this...ideas?
Thanks,
Dean

Also, audio that imports into Pr as stereo can be tagged as dual-mono by selecting the clips in the Project tab, and choosing Clip>Modify>Audio  Channels>Mono button. 
You can only do this before you edit any clips into a Timeline.  Once your clip is in a timeline, this option isn't available.  But, after you do this, and you drag a clip to a timeline, the audio will map to two mono tracks, instead of a single stereo track.

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    It's not a dual panned center mono file, there's something wrong with the way it sounds when left is panned hard left and right panned hard right. I've tried panning each channel hard the other way and it still doesn't sound like the original stereo file I've merged it with. Am I doing something wrong? Why wouldn't premiere just replace the AV clip audio with the singe track stereo clip? Why the need to break it out into dual mono? Is there a preference I'm missing or something? This seems unintuitive.

  • "Play stereo Audio as Mono"

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    Philmac88 wrote:
    the setting still resets itself after restarting.
    Then I'm stumped. I don't know why or what to do.
    You could go around the issue by running a script at login to set this option. Here's a script I found on the net:
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    on run
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      activate
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              end tell
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      click checkbox 2 of tab group 1 of window 1
              end tell
              quit application "System Preferences"
    end run
    --script ends
    (It requires the "Enable access for assistive devices" pref to be enabled.)
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  • Design flaw in 'Play stereo audio as mono' of Universal Access Hearing-tab

    The option to 'play stereo audio as mono' that comes with OSX 10.6 does not work as I expected.
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    I've done some testing with different soundcards and testing signals, and found out that when the option is enabled, the mono signals are routed incorrect.
    While the right channel becomes mono, the left channel seems to be something else; I'm not sure if it's the original left channel of the stereo signal, though.
    I have reason to believe that the resulting mono sound on the right channel correctly is the 'monofied original sound', but that from the left channel.
    The resulting mono sound on the left channel sounds like the original left channel of the stereo sound, maybe added with the mono sound of the right channel.
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    monofied (right)
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    I hope someone can confirm this. If more people experience this problem, maybe Apple can fix this so I can enjoy listening in mono.
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    Thanks!

    Thanks for the quick-and-dirty test.
    Your findings are not a surprise to me.
    It would be more interesting though to not use one's ears for proof.
    Also, I have reason to believe that this result is valid for any two channel audio interface.
    With the test below I can proof that audio is sent to three channels instead of just two, when enabling "Play stereo audio as mono" on an(y) audio interface with more than two outputs (enabled).
    The test takes a little longer than the quick-and-dirty test.
    If you don't have an audio interface with more than two channels of output, you can still perform the test by installing Soundflower first.
    Soundflower is a virtual audio interface with multiple inputs and outputs, and can be used as an audio router or audio patchbay.
    Get Soundflower from http://code.google.com/p/soundflower/ - it's free.
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    The signal strength of channels 2 + 3 seem equal, and channel 1 looks much louder.
    This difference in signal strength is very noticable when listening to channels 1 and 2 on separate speakers or headphone.
    What is that playing on channel 3?
    I must admit (against my original post) that this test does not proof that the signal on channel 1 is or is not mono or anything else; that requires another test.
    One can of course record these channels and do some comparisons and subtractions or some other clever tricks.
    Hope anyone can second this, preferably with an actual audio interface like Apogee Ensemble, Motu, RME, Presonus, Focusrite, etc.

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  • "Play stereo audio as mono" disabled after restart

    I've been using the "Play stero audio as mono" option in Universal Access, but ever time I restart, the setting is disabled.  As far as I know, this is the only setting that does this.  I also have the "Balance" slider bar all the way to the left in the Sound control panel; this persists through restarts.  What can I do to fix this?

    Philmac88 wrote:
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    Then I'm stumped. I don't know why or what to do.
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  • IDVD is converting my stereo audio to mono

    The exported files are in stereo, yet when I burn it, they're in mono. What's going on?

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  • Stereo Audio channel turns to mono when I close and re-open the project

    Hi there,
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  • Stereo audio rendering as mono

    My husband and I recently purchased a MacBook Pro last November, recently installed Final Cut Pro 5 on it 2 months ago, and now we're experiencing audio problems we've never encountered before.
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    The only problem with converting the audio files to 48 is that we have about 200+ audio files, living on about 17 layers, each with their own settings for speed and reverse and eq and more. Going back to reimport all that stuff would kill our deadline by about 40 hours = not possible.
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    Something very strange happened.

  • Stereo audio switching to mono

    I have a slightly curious problem. I have been working on a couple of projects recently where the stereo audio files (which are music) keep on switching to mono. If I reconnect the audio files, they return to stereo playback, but only for a short while. The playback always flips back into mono.
    Has anyone experienced anything like this, and/or know how to fix it?
    Many thanks!
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    Hi Andy,
    I am working on a mono timeline. I've just noticed another feature of my little quirk; The stereo tracks don't necessarily comletely turn to mono. On my current timeline, I have a couple of music tracks, where a portion has turned to mono, which is marked with a blue line at the top of the audio file, and a portion which is still stereo, marked with a green line at the top of the file.
    They are linked as stereo pairs, with the panning set to -1, +1
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  • Stereo audio export showing as mono

    Hi,
    I've been encountering an issue with exporting stereo audio from Premiere CS6 (v. 6.0.5) and After Effects CS6 (11.0.2.11). When I export a clip with stereo audio from Premiere or After Effects (usually to ProRes or Uncompressed QuickTime), the resulting file will show as having dual-mono audio in FCP7. When I check the file in QuickTime 7, QuickTime 10, MediaInfo, Premiere, After Effects etc., the audio is tagged as stereo. But when I bring the clip into FCP7, the audio shows as two separate mono tracks.
    While this isn't a problem if I stay within Premiere/After Effects, it does become an issue when I need to work with the clips in FCP7 (they have to be relinked as audio pairs in the timeline), and one of the external distributors I work with has come back saying the file we delivered did not have the audio properly linked as stereo.
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    Hm, not from what I've seen. Anything that's been exported as stereo through FCP, Compressor, MPEG Streamclip, Episode etc. shows up as properly linked stereo in Final Cut.
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  • Stereo audio imported as mono

    Any ideas why the stereo audio on my miniDV tapes was imported as separate mono tracks? I'm using FCE HD 3.5 -- the tape was shot on a Canon XL1 using 12bit audio (32KHz, not reset after a project using 4 audio channels).
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    Are you sure that your camera has actually recorded 2 channels ?
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  • Encore transcoded audio into mono instead of stereo!!

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  • How do I import stereo audio as pan centered, "Dual Mono?"

    Greetings,
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    Is this why I am only seeing one (mono) audio channel ? Can anyone tell me what this means and how I should fix it ?

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