Latest post Tue, Dec 1 2015 9:54 PM by mtahir. 6 replies.
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  • Sat, Nov 21 2015 1:42 AM

    • mtahir
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    Fixing camera audio...

    I'm editing some footage in which the main mic for a graduation ceremony wasn't working and so I only have the camera audio. The camera was a few rows back. As you can imagine, everything sounds distant. Of course, what the camera mic did pick was all those little sounds of people coughing and moving in their seats that are now nicely in the foreground.

    I would appreciate any ideas that could make it sound a little better than it is.

    Thanks

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  • Sat, Nov 21 2015 12:08 PM In reply to

    Re: Fixing camera audio...

    You may try iZotope RX4. It is a rather expensive software, comes as a standalone or a plugin. Among other useful tools it offers an excellent dialogue denoiser and a dereverb. 

    MB: ASUS P6TD Deluxe, ATX, Intel X58, QPI 6.4GT/s, Intel LGA1366, 6xDDR3 1600MHz, PCI-E V2.0, On-board Soundkarte. CP: Intel Core i7 920 (2.66 GHz) Quad... [view my complete system specs]
  • Sat, Nov 21 2015 12:29 PM In reply to

    • Tiger_XP
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    Re: Fixing camera audio...

    If possible upload a 10 second clip of the audio in this forum. After a few mates give it a go you may have a usable method with examples. I think IZotope and or other "denoisers" (Waves, UAD) have the ability to memorize a specific noise and cancel it out. In theory you should be able use the section before any "speeches" for the unwanted noise samples for elimination. Then use EQ and compression to bring out the speech.

     You would think the audience section during the speech would be silent. That's when everyone falls asleep! Big Smile

     

     

     

     

  • Sun, Nov 22 2015 8:22 AM In reply to

    • Mercer
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    Re: Fixing camera audio...

    mtahir:

    I would appreciate any ideas that could make it sound a little better than it is.

    Thanks

    I think what you need for this kind of artifact is a 'Deverb' type plugin, a rather specialised form that reduces the reverberation, quite difficult but there are one or two that somewhat successfully are able to 'take out' a lot of reverb. I use one called SPL De-Verb, quite cheap and I have found it very useful on narration and dialogue that has been recorded in less than ideal conditions. In fact I use it on all my VO work as a matter of course. I don't know how successful it is on a more complex sound with little quiet in between voice though.

    However somewhat more expensive is Zynaptic Unveil and there is an impressive demo available HERE that shows what can be done with a recorded pa that is almost entirely reflections (about 1:12 in the video).

    Removing coughs and chair moving though is something else and can only really be taken out where the principal speaker is not talking. In fact your almost getting into the realm of forensic tools, which might be worth looking at - I wish I had the 'plugins' that Gene Hackman used in Coppola's "The Converstion"Smile

     

  • Sun, Nov 22 2015 3:28 PM In reply to

    • Mark
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    Re: Fixing camera audio...

    MC doesn't have sub frame audio. Consider using a DAW to massage the audio. 

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  • Sun, Nov 22 2015 9:22 PM In reply to

    • DStone
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    Re: Fixing camera audio...

    I use Sony Spectralayers for this sort of thing. You can remove coughs, chair noise, reverb, etc and you can do it over dialog, music, etc. It's not the worlds easiest program to use; you really need to have a good understanding of sound processing to use it effectively. You can find some pretty good tutorials out there, including a on removing coughs and other noises.

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    Dave S.

  • Tue, Dec 1 2015 9:54 PM In reply to

    • mtahir
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    Re: Fixing camera audio...

    Sorry for the late reply, folks. Thanks for all the suggestions - much appreciated. I found that those that had a good voice on them actuall produced some good audio levels. There were one or two tracks that were quiet. I used Audition (I have CS2) to tweak it as best as I could. It sounds ok. The client knows that audio is somewhat poor and you can only take it so far in the time available.

    MC2018.1 (Win7) | Dell T7500 with 2 x 6-Core Intel Xeon X5690 3.46GHz CPUs | Triple-Channel 64GB (32GB per CPU) 1333MHz DDR3 EEC FBDIMM | 3GB nVidia Quadro... [view my complete system specs]
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