Comments

Steven Myers wrote on 11/27/2007, 10:15 AM
iZotope RX
jrazz wrote on 11/27/2007, 10:22 AM
Okay,

Let me rephrase that. Is there a method using the EQ or some other plugin that Vegas already has that will allow me to remove the feedback? Izotope is good but I can't justify the cost for this project.

j razz
deusx wrote on 11/27/2007, 11:06 AM
Insert a new audio track, then 5 seconds after feedback starts, drop in Hendrix' version of star spangled banner. Should sound great.
Chienworks wrote on 11/27/2007, 11:10 AM
You have to find which frequency is ringing. Sound Forge makes this very easy with it's spectrum analysis tool, but you can find it by trial and error. Create a notch filter in Graphic EQ. This is done by adding a control point to the frequency curve line at the feedback frequency and then two more control points as close as you can to either side. Drag the middle point down all the way. Frequencies at that notch will be removed.

Some adjustment will be required. Often you'll have to open the notch a little wider. Feedback also tends to have harmonics. If you find the main frequency is, say, 430Hz*, then you may also have to remove 860Hz, 1290Hz, 1720Hz, etc. though the amount of reduction required decreases quickly as you go up to higher harmonics.

* 430Hz is about what i got on your sample when i ran it through Spectrum Analysis. Try that frequency first.
jrazz wrote on 11/27/2007, 11:18 AM
Thanks Kelly. Will do.

j razz
jrazz wrote on 11/27/2007, 11:35 AM
Big difference. Thanks. I guess I will have to break down and buy Soundforge at some point (or just keep mooching off other forum members :)

j razz