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Sound - Removing Background Air-Con Noise

1 year, 12 months ago - Paul W Franklin

Hi,
I shot some interviews for a Behind the Scenes doc, and didn't notice until the edit that my shotgun mic picked up the sound of the air-con in the room. Kinda sounds like there's a blizzard outside.
Any sound whizzes got any good tips to remove it please? (I have Adobe Audition.) Like roughly what effects/parameters to use?

Many thanks,
P.

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1 year, 12 months ago - David M

Hi Paul,

Have a look at the digital signal processing solutions here: https://www.lalal.ai/voice-cleaner

Good luck.

Dave

1 year, 12 months ago - Paul W Franklin

Thanks Dave, I’ll try that and report back!

1 year, 12 months ago - Paul W Franklin

Didn’t work well and tried to charge me loads…

1 year, 12 months ago - Alwyne Kennedy

Goyo - https://goyo.app/

The beta version is free (if you're prepared to let it connect to the internet). It appears in your DAW or video editing app as a VST plug-in. I have it working in Adobe Audition, Premiere and Davinci Resolve. Here's a video highlighting its goodness: https://www.youtube.com/watch?v=bBb7vCgLbfI&t=1s

1 year, 12 months ago - Jim Read

Hey Paul,

I've only ever done it for some *god-awful* feedback in the background - and I think it's largely dependent on how similar/consistent the sound waves are from the noise you want to remove. But have a hash with the learning noise print / removing feature on audition: https://helpx.adobe.com/uk/audition/using/noise-reduction-restoration-effects.html#:~:text=Choose%20Effects%20%3E%20Noise%20Reduction%2FRestoration,Set%20the%20desired%20options

It's definitely tenfold better than the native Premiere sound removal features :)

1 year, 12 months ago - Madis Malgand

Hi Paul,

We can remove it for you cheap, what is the total lenght of the footage / clip you would need cleaned?

Many thanks.
Madis
https://www.malgandbrosstudio.com
07738470546

1 year, 12 months ago - Sam Hume

Final Cut Pro has a tick box that will isolate the vocals on a track - really accurate and requires zero skill. So if you can get your hands on a copy from someone, worth a shot.

Also there’s currently a giveaway of iZotope which can do similar: https://www.kvraudio.com/giveaways/get-izotope-rx-elements-free-win-a-copy-of-native-instruments-komplete-14-ultimate-ce-62

1 year, 12 months ago - Alwyne Kennedy

Goyo Voice Separator - https://goyo.app/

The beta version is free (if you're prepared to let it connect to the internet). It appears in your DAW or video editing app as a VST plug-in. I have it working in Adobe Audition, Premiere and Davinci Resolve. Here's a video highlighting its goodness: https://www.youtube.com/watch?v=bBb7vCgLbfI&t=1s

1 year, 12 months ago - Loren Kinsella

Hi Paul,
You might want to look at this site: https://app.audostudio.com/

It's a free AI site that will quickly remove all background noise.
Give it a try. It's quite interesting.

1 year, 12 months ago - Richard Harrison

Very impressed with the response you've received here, Paul.

Just goes to show you how resourceful Shooting People is and helpful shooters are!

Bloody well done to everyone who replied and tried to help Paul.

Richard
www.razorfilms.co.uk

1 year, 12 months ago - Paul W Franklin

Thanks everyone!
I'll try a few and see what works best.
Cheers.

1 year, 11 months ago - Simon Bolton Gabrielsen

Hi Paul, as per Jim Read above, a noise print removal is almost always the best option for this. I've used this countless times in Audition for room tone frequencies and annoying artificial noise and nothing else comes near it. The point is it effectively removes only the offending frequencies, as long as you can find a good point in your audio with no other sounds over the top. This can be literally half a second, and I'fe found that the shorter the noise print, usually, the better. Sometimes you have to try it a few times to get the best print/removal, but especially if it's really a consistent drone, the results are magic.

1 year, 11 months ago - Tom Kinnersly

Audition is excellent and since noone here has mentioned it then I have to say that Noise Isolation in Da Vinci Resolve is very clean using AI to recognise the human voice and preserve it. Jumping to 2 minutes into this short video will show you what is does and how to quickly do it.
https://www.youtube.com/watch?v=9k7-OtG2lAE

I wasn't able to confirm across several pages but I think Noise Isolation is included in the free version of Da Vinci Resolve. Good luck with your restoration project.
Tom

Free version download is here
https://www.blackmagicdesign.com/uk/products/davinciresolve

1 year, 11 months ago - John Lubran

At the end of the day any analogue or digital audio tweaking device is essentially a graphic equaliser.

The more narrowly defined each sounds waveforms are identified the better. It's about lowering or raising the volume separately from the other waveforms. Because some sounds share waveforms with background irritations, a form of layered processing derived from the first or further equalisations is required. Subtle manipulation of the remaining audio after such waveform removals and equalisations, that effectively restore and separate unhelpful waveforms shared with the wanted audio, used to be a big engineering job. Today's off the shelf digital technologies, are effectively in the realms of 'proto AI' and can do all that quickly, cheaply and more effectively even than the theoretically seamless ability of £20,000+ analogue 'Rolls Royce' quality machines of relatively recent times.

It's analogous to everything that's going on elsewhere in our industry and elsewhere. The thin end of an inevitable trajectory. Bad for technicians, but good for creatives. As in "Ask and it shall be given"

1 year, 11 months ago - Solomon Watkins

Just export the Wav file and drop it into the website then put the download back in


https://podcast.adobe.com/enhance

1 year, 11 months ago - Paul W Franklin

A little update for you:

Goyo seemed great, but I was too late for the Beta version (closed on Oct 1st!).
So I used audostudio (thanks Loren), which gives 20 free minutes/month. That was just enough for me. It worked very well at removing things like air-con hum, and even did a very reasonable job of lowering traffic sounds at a busy London roundabout/flyover. Far better than my efforts in Audition.

P.

1 year, 11 months ago - Richard Lipman

Hi Paul - This one here is widely used in the audio post industry - strongly recommended! It will improve and potentially remove unwanted sounds...Here goes Izotope RX noise removal...Good luck!

https://www.izotope.com/en/products/rx.html?utm_medium=cpc&utm_source=google&utm_campaign=SU_GN_SE_BR_UU_WW_iZotope&utm_content=iZotope_EM_KW&utm_term=izotope%7Ce%7Cg%7Cc%7C%7C677139973343&utm_creative=Evergreen&gad=1&gclid=Cj0KCQjw4bipBhCyARIsAFsieCyNi4q8jVuaD8isNrcbcycYpSmqL9nPynXKVOIhNDmc2E_689PrPVgaAuTTEALw_wcB

1 year, 11 months ago - Richard Lipman

And should you nee help with film, sound etc.. pls get in touch!! Reels @ https://linktr.ee/richardlipman