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Subject:Sweeping effect
Posted by: cyberbeat
Date:2/17/2002 10:24:40 PM

How do you get the type of sweeping effect in Acid that is so common in dance music? It's where the tone goes way in or out and then comes back to normal. It's not flange, but similar.

Can some one tell me what this is called and how to duplicate it in Acid? Thanks.


Subject:RE: Sweeping effect
Reply by: johannbad
Date:2/18/2002 12:26:33 AM

well... your looking for an parametric EQ sweep. There is no DX plugin that i can find that can sweep over time (there probably is.. i didn't look too hard.) You can fake it but make two parametric EQ effect envelopes (one a low pass, one a high pass), then make them fade over each other (the low start at 100%, the high at 0% and then ending with the low at 0 and the high at 100...)

did that make sense?

good luck

Subject:RE: Sweeping effect
Reply by: bruce_m_walker
Date:2/18/2002 8:52:09 AM

Also: guitar players know this effect as a Wahwah (or just Wah). Doesn't the XFX-3 do this? I don't have access to my ACID Music 3 here, but I think there's an "auto-wah" effect in there. Set the rate to "time" perhaps...

Subject:RE: Sweeping effect
Reply by: vanblah
Date:2/18/2002 9:33:25 AM

Phase shift? In dance music there is a tendency to use "analog" interfaces on synthesizers. These allow you to have real-time control of your sound. A lot of them are midi programmable now-a-days so you can program the exact amount of sweep you want over the exact duration that you want.

Subject:Sweeping phaser
Reply by: cyberbeat
Date:2/18/2002 10:34:15 AM

Thanks for your responses. I'll have to play around with the settings of the effects mentioned. I know that in Cool Edit there is something called "sweeping phaser" which creates the effect I'm looking for. I think a very slow wahwah would create the same thing? Oh well, I'm off to experiment.

Subject:RE: Sweeping effect
Reply by: johannbad
Date:2/18/2002 12:07:48 PM

goldwave also has the exact feature.

Subject:RE: Sweeping effect
Reply by: spesimen
Date:2/18/2002 2:18:41 PM

you might be referring to a 'resonant filter' which is the a very common type of synth modulation in techno.. it's similar to sweeping a parametric EQ as the poster above described, but it's more like a low-shelf with a peak at the cutoff point. there are plugins out there that do this but it is more frequently done at the synthesis level. if you're working with sampled loops you can filter them the same way but you won't get the same sound, since usally the amount and shape of the filtering is triggered by an envelope in real synths.

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