|
|||||||||
|
Thread Tools | Search this Thread |
April 1st, 2003, 01:00 AM | #1 |
Regular Crew
Join Date: Mar 2002
Location: California
Posts: 139
|
Removing feedback squeal in post
I recently filmed a live performance where there was a 45 second interval of feedback from one of the microphones during one of the songs. When I went to try to remove the feedback squeal during post production, it took me a long time to find the frequency of the feedback sound. I basically kept trying a digital notch filter at various frequencies until I found a frequency where the feedback started to be diminished. Once I was close, it still took me a while to hone right in on the exact frequency so that I could notch it out. This process would have been much easier if I had a spectrum analyzer that would have allowed me to see the frequency of the offending signal. I'd want one that could look at a .wav file and give me the amplitudes of the various frequencies in the interval of interest. Does anyone have a recommendation for some software that provides this function? Or another recommendation for how one would solve this problem?
|
April 1st, 2003, 01:38 AM | #2 |
Retired DV Info Net Almunus
Join Date: Dec 2001
Location: Chicago, IL
Posts: 6,943
|
Bias' SoundSoap might make the job a bit easier if you are a Mac and Peak user. (A stand-alone Mac OS-X version is promised.)
__________________
Lady X Films: A lady with a boring wardrobe...and a global mission. Hey, you don't have enough stuff! Buy with confidence from our sponsors. Hand-picked as the best in the business...Really! See some of my work one frame at a time: www.KenTanaka.com |
April 1st, 2003, 09:17 AM | #3 |
Wrangler
Join Date: May 2002
Location: Vallejo, California
Posts: 4,049
|
For PC users, Sound Forge has a spectrum analyzer.
__________________
Mike Rehmus Hey, I can see the carrot at the end of the tunnel! |
April 1st, 2003, 09:38 AM | #4 |
Regular Crew
Join Date: Jan 2003
Location: Los Angeles, CA
Posts: 94
|
I've used SoundSoap and found it very effective at removing all kinds of extraneous repetitive noises.
__________________
This is the way the world ends. |
| ||||||
|
Thread Tools | Search this Thread |
|