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AUDIO PROBLEM! High Pitched Whining Noise in Background

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Colin Slater
AUDIO PROBLEM! High Pitched Whining Noise in Background
on Sep 10, 2019 at 10:31:44 pm

I'm using adobe premiere pro to edit and after shooting I've noticed my audio has a high pitched background sound to it which wasn't there when filming. I couldn't hear this when recording and I was using a rode videomic pro.

Please can anyone help and I'm wondering is it possible to remove the background noise as I won't be able to re-shoot ☹ Also so I can avoid this problem in the future.

Please see the download link below.

https://www.dropbox.com/s/mn0hxdg0ehnuu1g/audio%20problem.mp3?dl=0

Thanks, Colin


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mark thompson
Re: AUDIO PROBLEM! High Pitched Whining Noise in Background
on Sep 10, 2019 at 11:57:41 pm

Hi,
I'm not hearing much high pitched whine - but that could be me ☹

I hear a lot of room noise, particularly what sounds like a/c fans.

For the future I would see if you can turn that off for the talk.
Also use a lav mic so you can get as close to the speaker as possible.

I had a look in Audition and there seems to be some regular harmonic lines. It may be possible to put a filter on it and at least improve the sound. I will have a try and then post back if I have any success.


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mark thompson
Re: AUDIO PROBLEM! High Pitched Whining Noise in Background
on Sep 11, 2019 at 12:27:38 am

I had a quick go and didn't have much luck, others may do better though.

I got the best results with vocal enhancer but it is only marginally better.

Perhaps the new essential sound panel may help. It has some AI enhanced noise reduction


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Peter Groom
Re: AUDIO PROBLEM! High Pitched Whining Noise in Background
on Sep 11, 2019 at 11:04:20 am

The high noise is pretty bad, and equally as objectionable is the room rumble.
Ill have a go on a bit and come back to you
Peter

Post Production Dubbing Mixer


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Colin Slater
Re: AUDIO PROBLEM! High Pitched Whining Noise in Background
on Sep 11, 2019 at 12:59:50 pm

Thanks guys appreciate the help!

I've added denoise in premiere pro and it's a lot better now but open to any other suggestions if you find something that works better. Thanks!


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Peter Groom
Re: AUDIO PROBLEM! High Pitched Whining Noise in Background
on Sep 11, 2019 at 1:49:08 pm

Hi - I did a sample of it
here
13698_denoised.mp3.zip

Peter

Post Production Dubbing Mixer


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Blaise Douros
Re: AUDIO PROBLEM! High Pitched Whining Noise in Background
on Sep 12, 2019 at 4:24:52 pm

A simple notch filter will take care of the single high-pitched noise. Center it on the pitch, and narrow it as much as you can so it doesn't affect the surrounding pitches. It won't help with the lower-pitched AC rumble, though.


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Peter Groom
Re: AUDIO PROBLEM! High Pitched Whining Noise in Background
on Sep 12, 2019 at 4:53:58 pm

Hi
Im afraid a notch filter isnt going to help.
Look at this screen grab of the problem audio
13711_screenshot.png.zip

It has a basic problem but has a lot of harmonics (12) too that can be seen as all of the horizontal lines all the way up the screen. Plus an eq will affect the audio you want to keep which isnt good either.
Peter

Post Production Dubbing Mixer


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Blaise Douros
Re: AUDIO PROBLEM! High Pitched Whining Noise in Background
on Sep 12, 2019 at 11:07:20 pm

That's nasty. I only heard one of the upper harmonics.

Premiere's DeHummer effect might do the trick better, since it is able to handle multiple harmonics. It's still not as good as clean audio, but it notches out the fundamental and its overtone series.

https://helpx.adobe.com/audition/using/noise-reduction-restoration-effects....


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