Page 1 of 1

How to reduce noise?

Posted: Mon May 27, 2013 9:38 pm
by SteveHigh
Hello

I have Audacity 2.0.1 and use Windows 7.

I am to edit a long movie clip (15 years old) which, I have noticed, has attracted a lot of background noise (crackling, etc).

Is it possible to reduce this 'noise' in Audacity?

Thank you.

Steve

Re: How to reduce noise?

Posted: Mon May 27, 2013 11:56 pm
by kozikowski
No. Probably not. The Audacity Noise Reduction tool is for quiet, constant noises like air conditioning rumble or computer fan noises. It won't do anything for static or a bus starting up outside the window or the dog barking next door. It works by "memorizing" a segment of noise without the performance, and then trying to remove that memorized portion from the rest of the show. If the noise changes at all between the two steps, it stops working.

You might try the vinyl record tools. They can have similar noises.

http://www.youtube.com/watch?v=ts11mER9YH4

This is an older Audacity, but some of the tools are the same.

Koz

Re: How to reduce noise?

Posted: Tue May 28, 2013 11:28 am
by steve
There are some tips about noise removal here: http://wiki.audacityteam.org/wiki/Noise_Removal

Re: How to reduce noise?

Posted: Wed May 29, 2013 11:45 am
by SteveHigh
Many thanks to you both for your replies and links.

I will investigate them now.

Cheers

Steve