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| quote: | Originally posted by Derivative
Threadstarter - that is not a sidechain. If you want to create a bass ducking effect then you can do it an even easier (and more appropriate) way by sticking a fruity compressor at the end of the signal chain on the channel for the bassline. Leave the output gain alone (otherwise you will colour the output signal) and set the compression ratio as desired. Right click the threshold rotary and select 'Edit Event' as shown below: |
Actually, what Ricky's doing is closer to sidechaining than what you're doing, IMO. The best description I've heard for a compressor is holding the gain knob while a song plays and tweaking it down for peaks. It's just that with a computer controlling the gain reduction, this process tends to be more precise.
When sidechaining, the compressor that is receiving the kick's signal is the hand on the bassline's gain knob. The compressor reacts to the kick's peaks and tweaks the gain knob down on the bassline instead. This is almost exactly what peak controller does in the FLStudio Macgyver sidechain. The difference is that whereas a sidechain compressor only triggers above certain amplitues on the kick channel, the peak controller is always triggered by the kick. Like having the threshhold spun all the way down to negative infinity. This can be circumvented however, by putting a noise gate before your peak controller. The ratio is fairly well approximated by the amt knob and the tns knob, and the decay knob is something of an analogue to the attack and release knobs.
Your method has two problems. First, the gain reduction on the bassline isn't even related to the peaks of the kick drum. The "hand on the gain knob" is a midi track. Second, the hand isn't even on the gain knob, it's on the threshhold knob for a compressor.
Your first problem can be solved by using a peak controller on the kick track to control the threshhold of the compressor on the bassline track. But this still leaves us with your "hand" on the wrong knob.
Don't get me wrong, your method (slightly altered by yours truly) leaves us with a bassline gain that is controlled by the peaks of the kick track, and even has a volume below which the bassline's gain is unaffected. The problem is this: the threshhold is more related to the bassline's volume than the kick's volume. If the threshhold is on the kick, the compressor will always trigger for the same kick drum peaks. If it is on the bassline, however, it will trigger differently for the same kick volume if the volume on the bassline differs.
So you might as well go with the tried and tested method, since it works pretty well.
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