Sound editing help

gary-kohout wrote on 1/2/2012, 10:03 AM
Hello all. New to the forums here, and just getting started on video editing. My daughter and one of here friends did a little video clip and in some of the footage, you can hear a high pitched whine from the mic. When I look at the audio effects in VMS, it is like reading a different language to me. Have tried a few with no luck. Any advice on how to take out the high pitched whine would be much appreciated!


Chienworks wrote on 1/2/2012, 10:07 AM
If it's a narrow frequency band (that is, the whine is pretty much restricted to a very narrow range of notes), the equalizer would be your best bet. Process / EQ / graphic EQ. You can try pulling down some of the bands until you find one that cuts down on the whine.
musicvid10 wrote on 1/2/2012, 10:46 AM
Render out 30 sec. of the audio in WAV format, upload it somewhere, and let some of the regulars here try their hand at EQ'ing it.
gary-kohout wrote on 1/2/2012, 11:20 AM
Thanks guys. I tried some EQ stuff, but haven't found the sweet spot. Here's a link to a short clip of the audio if anyone wants to play with it. Sure appreciated it.

EGS wrote on 1/2/2012, 11:22 AM
As Chienworks said, it's probably a narrowish frequency band. Insert a parametric EQ. Set the Q (bandwidth) to a very narrow notch. Set the gain to full boost. Gradually sweep the frequency until the whine is dramatically boosted. You have now located the frequency in question. Instead of boosting it, now just cut this frequency back. You might want to widen the Q a bit at this point. If you still hear a whine, you might try another notch EQ at double that frequency, and also at half that frequency. Hope this helps !!!
Steven Myers wrote on 1/2/2012, 11:43 AM
7,882 Hz. To a lesser amount, 15,764 Hz.
gary-kohout wrote on 1/2/2012, 12:04 PM
Thanks guys! Wish I knew just half of what you guys know about sound. I set it like this based on Steven's numbers, and it is much better. Was this the right way to go about it?

EGS wrote on 1/2/2012, 12:20 PM
Well, you used a graphic EQ instead of a parametric. A parametric EQ allows you to very precisely adjust frequenct and Q (i.e. bandwidth). Try my method of sweeping the frequency using a parametric, as described above. If Steven has not actually heard the clip in question, he is at best guessing that those are the precice frequencies.
gary-kohout wrote on 1/4/2012, 1:21 PM
I see what you mean now. Did the parametric and put the sound in a loop and then held the right arrow key down to run through the frequency, but didn't see a huge noticeable difference for some reason. I did notice that the whine is the only thing pretty much on the right channel in those clips, so I just turned the right channel off in those. That "fixed" this, but I'll keep your method in mind for the next sound issue I run into.

Thanks again top everyone for your input.
amendegw wrote on 1/4/2012, 1:59 PM


Edit: I only have Vegas Pro, but I'm pretty sure this works in Movie Studio: right click audio event -> Channels -> Left Only.

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