DJAE
New Member
Hi,
New to the forum so please be gentle!
I am working an a very basic analogue processor (essentially a compressor, limiter eq and noise gate!). I have the compressor and limiter sorted.
I need help with a simple downward expander and/or noise gate. I thought about a non selective noise gate by simply using an opamp comparator to pull the signal down to gnd when the signal falls below a certain threshold (using an RC timing network on the input). However i would MUCH rather have a proper downward expander in there too.
The attached image is supposed to be a noise gate by by my reckoning it looks more like a voltage controlled attenuator (the larger the siganl the more it attenuates), i want the opposite: a circuit which begins to attenuate higest frequencies as volume descreases past a given point.
Thanks in advance.
AE
View attachment 64107
New to the forum so please be gentle!
I am working an a very basic analogue processor (essentially a compressor, limiter eq and noise gate!). I have the compressor and limiter sorted.
I need help with a simple downward expander and/or noise gate. I thought about a non selective noise gate by simply using an opamp comparator to pull the signal down to gnd when the signal falls below a certain threshold (using an RC timing network on the input). However i would MUCH rather have a proper downward expander in there too.
The attached image is supposed to be a noise gate by by my reckoning it looks more like a voltage controlled attenuator (the larger the siganl the more it attenuates), i want the opposite: a circuit which begins to attenuate higest frequencies as volume descreases past a given point.
Thanks in advance.
AE
View attachment 64107