edit audio using FCP or imovie 11

Discussion in 'Digital Video' started by cpnotebook80, Apr 18, 2011.

  1. cpnotebook80 macrumors 6502a

    Feb 4, 2007
    I did a recording for work and there was this annoying truck backing up down the street. Playback shows when speaker is talking we can hear a distant beep beep beep in the background.

    how would one remove it or hide the sound. I tried it with imovie in audio settings and it still is noticeable

    I have fce but havent tried that
  2. alph45 macrumors member

    Jun 2, 2010
    not easily done if you don't know what your doing, and even then results may vary.

    Typically a product like Soundsoap would be used, but this works best on consistent sounds (machinery hum, camera noise). A "beep" needs to be isolated. On a graphics equalizer the sound should be in the upper range while the human voice is in the mid's. Using any decent audio program or even FCP bring the upper levels down to try and reduce the sound. Taking out the highs entirely though will produce a distorted speaking voice and this approach is in general going to produce rough results unless you know what your doing.

    An audio specialist can work magic (i'm not) and can for example, recreate the highs that have been filtered out or just isolate the beeps with good frequency analysis, but this is rapidly leaving my area and certainly your software.
  3. cpnotebook80 thread starter macrumors 6502a

    Feb 4, 2007
    I figured
    So ask them to come back again for retake.
    thats fine
    thanks for response
  4. bagelche macrumors 6502


    Nov 2, 2007
    Western Mass.
    What you'd like for that is a program that can edit in spectrum view. You would then be able to see the beeps and remove them with some careful selecting and deleting.

    A waveform view shows amplitude of the sound (how loud it is) on the vertical. In a spectrum view you generally see the frequency range of the sound on the vertical. You would then see the beeps as short dense patches of sound in a specific frequency range.

    Soundtrack Pro will do this. I've also used Izotope RX for this, but that's a fairly pricey app. There are others that will do it as well, but I'm not as well versed in them.
  5. martinX macrumors 6502a


    Aug 11, 2009
    Monitor with headphones next time. They help isolate the sound so you can concentrate on exactly what the camera is hearing.

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