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View Full Version : How to remove uniform hum from MP3?

JimmyBarnes
7th February 2007, 03:10
Is there a util that does this?

TIA

JB
Sharktooth
7th February 2007, 03:32
cooledit (now available as adobe audition), goldwave, audacity (IIRC) and many other audio softwares.
maybe it can be done even via avisynth.
Pookie
7th February 2007, 07:10
You're in Aus, right? These would be the frequency bands to cut: 50Hz, 100, 150, 200, 250, 300, 350, 400, 450Hz
If you can find an app with a good notch filter, you are all set :)

http://img409.imageshack.us/img409/6884/48271566mp2.th.png (http://img409.imageshack.us/my.php?image=48271566mp2.png)

It works pretty well - check it out on this 5 sec clip. Activated the filter at 2.5 seconds.


http://www.momoshare.com/file.php?file=d506c5438c5d55a598c5628ab50b72c3