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cjacs987654
Inspiring
July 16, 2018
Answered

Adaptive noise reduction first few seconds

  • July 16, 2018
  • 1 reply
  • 2279 views

Hi

I need to reduce hiss from an audio clip about 20 seconds (all dialogue). I have applied the adaptive noise reduction effect and this works perfectly for most of the clip, except the first 2 or so seconds.

I have read that it needs a short time to 'analysis' the file, but anyone got any ideas how I can get it to work on the entire clip?

Thanks

    This topic has been closed for replies.
    Correct answer SteveG_AudioMasters_

    cjacs987654  wrote

    I have read that it needs a short time to 'analysis' the file, but anyone got any ideas how I can get it to work on the entire clip?

    Yes. Stop using it, and use the (better) process effect. Find a sample of just the hiss, set the FFT to a high value, and process the entire file. I never fail to be amazed at why people continue to use the Adaptive NR - apart from anything else, it produces variable results that can often make after-the-fact editing rather harder to do. You really do get better, more consistent results from the process effect!

    And I have to say that for 20 seconds, this is a complete no-brainer - Adaptive NR will hardly have got going...

    1 reply

    SteveG_AudioMasters_
    Community Expert
    SteveG_AudioMasters_Community ExpertCorrect answer
    Community Expert
    July 16, 2018

    cjacs987654  wrote

    I have read that it needs a short time to 'analysis' the file, but anyone got any ideas how I can get it to work on the entire clip?

    Yes. Stop using it, and use the (better) process effect. Find a sample of just the hiss, set the FFT to a high value, and process the entire file. I never fail to be amazed at why people continue to use the Adaptive NR - apart from anything else, it produces variable results that can often make after-the-fact editing rather harder to do. You really do get better, more consistent results from the process effect!

    And I have to say that for 20 seconds, this is a complete no-brainer - Adaptive NR will hardly have got going...

    C
    cjacs987654Author
    Inspiring
    July 16, 2018

    Hi Steve,

    Many thanks for your reply. Perfect result!!

    I am new to removing noises and all the googles I did seemed to suggest ANR was the king!

    Ideally I would like to do this in premiere but it doesn't seem to be in there. For new work that's no problem, I can apply noise reduction to the files before they get to premiere but I am working on a project I was given 1 hour long. I know I could edit each clip in Audition, but as a lot of the files have the same 'hiss' do you know a way to apply to all clips quicker than editing each one?

    Thanks again Steve, great result

    Chris

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    cjacs987654Author
    Inspiring
    July 17, 2018

    If it really is the same hiss, then you can save the noise profile and reuse it, yes.


    Hi Steve

    Thanks for that.

    When I use the noise reduction tool, there is some slight 'artifacts' or 'worble sound' at low level. I have tried playing around with the various preferences, but no joy. Any idea how to reduce or remove these?

    Thanks

    Chri

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