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Dumb quesion on Keyed Gates
Old 3rd December 2002
  #1
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moon_unit's Avatar
 

Dumb quesion on Keyed Gates

Quick quesion . . .

On a typical frequency-dependent gate . . . is the frequency range I select going to be what "triggers" the gate (to close) or the one that "opens" it? :D

Thanks
Old 3rd December 2002
  #2
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If you are using a Dramwer 201, the filters only affect the KEY signal driving the gate, not the sound being processed. The key listen feature allows the effect of the filters to be heard when setting up. If the external key input is not being used, the main input will also feed the side-chain, so you'll hear a filtered version of the input in the key listen mode. If the unit is set for external keying, you'll hear the external signal processed with the filters. How this answers your question.
Old 3rd December 2002
  #3
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groundcontrol's Avatar
 

By definition a gate (a high ratio downward expander really) opens once its "trigger" signal goes "above" its set threshold. As e-cue wrote, the "triggering" signal (it's called the "control" or "side-chain" signal technically) can be the actual audio material to be processed or whatever signal is present at the "key" input. The signal selected to control the side-chain triggering can further be filtered to remove some signal components thus making the side-chain sensitive to only a specific frequency band.

(By opposition an "upward" expander is a processor that is gonna make the audio it's processing "louder" once it's control signal goes "under" its set threshold.)

We usually think of a dynamic processor that "closes" (partially or totally) its output signal when the "control" signal goes "above" its set threshold as a "ducker".

Does that make sense to you?
Old 3rd December 2002
  #4
To set it up for snare, you would pull up the HP filter past the sub whomp of the kick, past the boom of the toms, right up to the middy "cronk" OF THE SNARE, then you might pull down the LP filter past the 'zing' of the ride, past the splash of the cymbals and cut of hihat, down just to isolate that 'cronk' noise of the snare..

Isolation, locate JUST the sound to be keyed, & cut out the unwanted crap around it... use THAT as a key for the gate...


On a DAW advance a copy 'key track" so that the gate opens very slightly BEFORE the actual hit.. This keeps maximum punch!

BTW dont forget all the grace notes on the snare you lose with a gate, set up and extra track equed just to bring those parts out - and blend to taste with automation!

Old 3rd December 2002
  #5
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moon_unit's Avatar
 

Got it.

How did you know I was talking about snare? You must be psychic, Jules. 200-400 hz should just about do it, I suppose.

Thanks a ton for all your help, guys. Happy Holidays.
Old 3rd December 2002
  #6
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Knox's Avatar
 

Quote:
Originally posted by moon_unit
Got it.

How did you know I was talking about snare? You must be psychic, Jules. 200-400 hz should just about do it, I suppose.

Thanks a ton for all your help, guys. Happy Holidays.


Jules is a jeni . . . .er , gen . . . uh jeniu . . . . . he's a frikkin' smart limey, that's how. . . . . . Or 1/2 limey.
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