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Activity Forums Apple Final Cut Pro removing audio defect

  • removing audio defect

    Posted by Philip Fass on June 7, 2012 at 3:45 pm

    I have about a half hour of footage in which there’s a sound that’s almost like fingers snapping. It’s louder than the guy I was interviewing, and happens on top of the dialog. I don’t think it’s a chronic problem, because I have many hours of footage without it.

    I’ve looked through the FCP X Logic Effects manual, and I don’t’ see anything obvious to fix this. Would welcome suggestions.

    Jari Innanen replied 13 years, 11 months ago 5 Members · 9 Replies
  • 9 Replies
  • T. Payton

    June 7, 2012 at 4:55 pm

    That is gonna be hard to isolate. Basically you need to find the frequencies of the finger snap and pull them down as much as you can without harming the dialog.

    You can find the frequencies using the Channel EQ and “Analyze” button, or just guess and notch out the frequencies with that EQ.

    If you wanna upload a sample here I’ll give it a shot and report backs with the settings.

    ——
    T. Payton
    OneCreative, Albuquerque

  • Kyle Bass

    June 7, 2012 at 5:08 pm

    You could also use something like iZotope RX, which allows you to spectrally repair the audio instead of notching out entire frequencies. Works quite well, but it’s not included with FCP X and it’s not free.

  • Philip Fass

    June 7, 2012 at 5:54 pm

    Here’s an exported sample:

    https://www.legacyvideoportraits.com/htunsample.mov

    You’ll hear the noise over the work “back.”

    Thanks!

  • Bret Williams

    June 7, 2012 at 6:36 pm

    It’s pretty clearly AFTER he says “back” and it’s so short. Just delete it and fill that spot with a frame or two of the audio before or after it. Would be the first thing I’d try.

  • Philip Fass

    June 7, 2012 at 6:41 pm

    I’ll give it a shot. Will need a different approach if there are others that are right on top of the dialog. I suppose for those I could try to find a noiseless example of the same word and replace the bad one.

  • T. Payton

    June 7, 2012 at 6:50 pm

    Ouch. That is a full spectrum snap. You can’t isolate frequencies.

    My first thought was Envloper, it works based on dynamics alone and lets you reshape the volume of a sounds. It looks like it reduces it on the waveform but you can still hear it as clear as day:

    Here is before:

    And after:

    (again it looks good, but the snap has some reflection and room noise. That is a weird snap I tell you)

    Here is the enveloper version:

    Click removal – enveloper

    So I think you are best to just remove it and add some room noise. Something like this:

    Sounds just dandy:

    Click removal – enveloper

    ——
    T. Payton
    OneCreative, Albuquerque

  • T. Payton

    June 7, 2012 at 6:53 pm

    OOps. Posted the wrong video for the volume notch. Here is the correct one.

    Video Fix – Volume Notch

    ——
    T. Payton
    OneCreative, Albuquerque

  • Bret Williams

    June 8, 2012 at 4:03 am

    Exactly what I had to do in my first X project and the fact that I could edit at the sample level was great. We had a lot of slamming doors in interviews (shot in lobby) and when they were between words I just did what you did. When they were on words, I was lucky enough to have other takes with the same word and in flexion. X made it easy to slip it into position. Editing at the frame level in 7 was kinda hit and miss for this stuff.

  • Jari Innanen

    June 8, 2012 at 7:37 am

    Here’s my tip for cleaning audio in FCPX:
    https://youtu.be/SRS7yCqqDOI

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