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Activity Forums Adobe After Effects AE CS5.5 stereo audio becomes dual mono in FCP

  • AE CS5.5 stereo audio becomes dual mono in FCP

    Posted by Jan Van den bossche on February 14, 2012 at 1:43 pm

    Hi,

    working in CS5.5 on a MacPro.
    I render a comp with a stereo audio file to a QT Movie with any codec, settings are stereo 16bit, the audio output mapping is set to Left:Out1 Right:Out2 Then I import this movie file in FCP7. There it shows up as 2 mono channels.
    If I play the QT Movie in QT Player or MPEGstreamclip the “info” windows say it’s “stereo”.

    Very strange…

    Where did I go wrong?

    Jan

    Jan Van den Bossche

    Jan Van den Bossche

    Jan Van den bossche replied 14 years, 5 months ago 3 Members · 5 Replies
  • 5 Replies
  • John Cuevas

    February 14, 2012 at 2:02 pm

    The left and right channels are just being seperated in FCP, you have stereo. Left Mono + Right Mono = Stereo

    Johnny Cuevas, Editor
    Thinkck.com

    “I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work.”
    —THOMAS EDISON on inventing the light bulb.

  • Jan Van den bossche

    February 15, 2012 at 8:30 am

    Hi,

    thanks for your answers.
    Of course I don’t edit audio in AE, that wouldn’t be smart.
    But I make 30″ commercials, I get 30″ stereo mixed and finalized audio wave files from the audio production studio.
    So I render the final commercial from AE to deliver for broadcasting. If I import that final QT Movie to double check it in FCP then it says dual mono. It’s not a disaster but it’s strange since that it isn’t the case in CS4 and I checked all settings.

    Dual mono isn’t the same as stereo. You still have to “pan left and right” to get a stereo sound.

    Jan

    Jan Van den Bossche

  • Erik Lindahl

    February 15, 2012 at 9:44 am

    I’ve had this problem since After Effects CS5 and onwards and haven’t found a solution. I have to manually link up the dual mono to a stereo pair in FCP which is a pain (and it’s happened others have missed this and actually delivered dual mono spots to TV).

    A solution would be appreciated.

  • Erik Lindahl

    February 16, 2012 at 12:19 pm

    Then change your workflow. Bring video and audio together in a video editing application, where the audio will behave properly and export properly.

    That’s a somewhat backwards way of thinking. This is an obvious bug in After Effects, QuickTime or Final Cut Pro – I’d say in how AE writes the QT-file or how FCP interoperates what AE writes to the QT-file.

    Yes, you can solve it by using another approach (linking mono-tracks to stereo in FCP and rendering out a new file) given that takes time and shouldn’t be required.

    I’d recommend people seeing this bug to submit a report to Adobe so they fix it.

  • Jan Van den bossche

    February 16, 2012 at 12:30 pm

    Thank you Erik, I totally agree.

    let’s hope someone at Adobe looks into this.

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