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Summary: Pro Tools TDM users can redraw sound waves with the pencil tool. Fix waveforms of sound files using the TDM options of Digidesign Pro Tools with the tips in this free video on music recording software from a professional musician.
"Next I'm going to show you how to repair waveforms with the pencil tool. Now the first part is you got to pick the part that you want to actually repair. There might be a point in the song where it might pop a little bit and the waveform might get a a little bit louder than you wanted to get. So what you want to do is you might want to go in here and just find the actual part that's bothering you which is, I see this part right here, it's kind of pretty close to end. So what I'm going to do is zoom it in as much as I can. This is very important. You got to make sure that you zoom in as far as you can so that you can actually see the line of the waveform. Once you actually see the line of the waveform, you'll be able to, you'll be able to draw it in. Once it's almost to the point where you want it to be, you're going to see the line kind of come out all the way through the end. What I'm going to do, is I'm going to use my pencil tool to kind of draw in the line that's not so close to the end, "you need to slide this", so I can bring it back. And that one part won't be as viable as the rest of the part. So it won't come as close to the edge, it won't distort your popper or quicker or whatever."
eHow Article: Pro Tools TDM Options: Repair Waveforms With the Pencil