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Subject:Manual editing in Sound Forge
Posted by: kevinworley
Date:2/15/2002 12:33:59 PM

I have some guitar files in Sound Forge 4.5 that have several wave spikes (string noise). Is there a way to manually cut/delete these spikes without EQ'ing the entire file. There are only a dozen or so spikes, but they have a lot of energy and they're very annoying.
Either respond here or to: kevinworley@yahoo.com

Thanks,

kevin

Subject:RE: Manual editing in Sound Forge
Reply by: Chienworks
Date:2/15/2002 1:12:25 PM

What i usually do is zoom in on the peak all the way to 1:1 (press the up arrow key to zoom in, and the left & right arrow keys to keep the cursor centered on the peak while zooming), then highlight from the zero crossing before the peak until the zero crossing before the peak, then Process, Fade, Graphic. In the window that pops up you'll see just the peak that you've highlighted. You can click on the 100% line and drag the fade envelope down at the center of the peak. If you need to reduce the peak 6dB, drag it down to 50%. The ends of the envelope will stay at 100%. This allows you to reduce just the peak itself without affecting the rest of the wave much at all.

Once you get the hang of it, it only takes a few seconds for each peak.

Subject:RE: Manual editing in Sound Forge
Reply by: kevinworley
Date:2/15/2002 1:27:04 PM

Cool - that sounds like it'll work. Thanks!

Kevin

Subject:RE: Manual editing in Sound Forge
Reply by: VU-1
Date:2/15/2002 11:39:02 PM

2 methods:

1) Do as on previous post but instead of using the graphic fade function, use the volume function and slide the fader down how ever many dB you want to reduce the transient by. The transient will retain its transient shape but just have reduced amplitude.

-or-

2) Use a compressor (graphic dynamics or multi-band dynamics - with m/b dyn. you can be freq. specific) set to a very fast attack & very fast release time. You can preview the result in real-time & tweak the threshold 'til you grab the peaks you are after and then process the entire file in one pass with these.

JL
OTR

Subject:RE: Manual editing in Sound Forge
Reply by: kevinworley
Date:2/16/2002 3:39:51 PM

Thanks to both responses. I haven't tried the second yet, but I tried the first method using the fader function, and it worked like a charm. I'll try using the volume function to see if i can tell any differences. Thanks again.

Kevin

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