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Subject:Loop editing
Posted by: SPP
Date:1/27/2002 3:10:14 PM

Hi. I'm trying modify a loop from four beats to eight beats. Specifically I have a guitar chord that sustains only four beats. I'd like it to sustain smoothly for eight beats without getting the initial attack at beat five. I've tried taking a small part of the loop, copying it several times, and then overlapping them within the same track. That didn't work. Any suggestions? I'm still pretty new to this ACID stuff. Thanks in advance.

Subject:RE: Loop editing
Reply by: SonicJG
Date:1/28/2002 9:46:31 AM

This is a pretty difficult proposition, for one main reason--your guitar sound (or any musical sound for that matter) generally consists of an Attack, then Decay, then Sustain, then Release. If your guitar chord does have a sustain portion that plateaus, you may be able to loop it, but if it's generally decaying and decreasing in volume, you'll need to work a bit harder to make this happen.

The easiest way to do this is to re-record the loop with a longer sustain, if you can.

If that's not possible, the second easiest thing to do is to bring the file into Sound Forge, grab the most sustaining part of your file and copy it, then paste it out a few times. Select that whole re-pasted section and choose Effects/Envelope from the pulldown menu's, select "show waveform" and experiment with it.

You could also bring that file into ACID by itself, and change the tempo dramatically midway through the file, then render out as a new file, but that's likely to have a bit of artifacting if you tweak the tempo by a factor of two.

Best of luck,
Joel

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