GSSL HELP THREAD!!!

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1wildthing

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Jan 27, 2021
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Gustav
I’ve tried to compare the behavior of my gssl to the waves plugin in order to understand the differences. Threshold wise from the center scale to full CCW the behavior is similar and even the meter reacts in the same way.
Your unit should not react when threshold is set above audio level - there is no "compressor to one side/expansion to the other" functionality, only compression over the set threshold.

Sounds like you have something weird going on, but we would need feedback on what happens to help.

Gustav
Your unit should not react when threshold is set above audio level - there is no "compressor to one side/expansion to the other" functionality, only compression over the set threshold.

Sounds like you have something weird going on, but we would need feedback on what happens to help.

Gustav
Ok Gustav I’ve tried to compare the behavior of my gssl to the waves plugin in order to understand the differences. Threshold wise from the center scale to full CCW the behavior is similar and even the meter reacts in the same way. However when the pot moves from the center to the right in CW direction the meter immediately goes to 0, the compression disappears and bypassing the effect the sound is the same. Moving threshold pot even to full CW makes no difference and even on hard settings of other knobs the sound doesn’t change.
I’ve tried to replace the threshold pot but nothing has changed.
Any idea?
 

Gustav

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Ok Gustav I’ve tried to compare the behavior of my gssl to the waves plugin in order to understand the differences. Threshold wise from the center scale to full CCW the behavior is similar and even the meter reacts in the same way. However when the pot moves from the center to the right in CW direction the meter immediately goes to 0, the compression disappears and bypassing the effect the sound is the same. Moving threshold pot even to full CW makes no difference and even on hard settings of other knobs the sound doesn’t change.
I’ve tried to replace the threshold pot but nothing has changed.
Any idea?

I dont know which plugin you are comparing to, or what it does exactly, but as I understand it, you have an expansion of some sort going on when using the plugin, and you are lacking that on the hardware unit.

The hardware unit you have built is a compressor. When you move the threshold, you set the threshold for the desired amount of compression relative to the amplitude of your program material. When you move the threshold above that amplitude, no compression will occur.

On your first post, I misread and thought you had something going on when moving the threshold out of the way. The fact that you dont just means the unit is working as expected.

Hope that helps!

Gustav
 

1wildthing

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Joined
Jan 27, 2021
Messages
10
I dont know which plugin you are comparing to, or what it does exactly, but as I understand it, you have an expansion of some sort going on when using the plugin, and you are lacking that on the hardware unit.

The hardware unit you have built is a compressor. When you move the threshold, you set the threshold for the desired amount of compression relative to the amplitude of your program material. When you move the threshold above that amplitude, no compression will occur.

On your first post, I misread and thought you had something going on when moving the threshold out of the way. The fact that you dont just means the unit is working as expected.

Hope that helps!

Gustav
Ok I understand but I’ve also tried to change the input volume of the sound source in order to see how this affects the compression but don’t matter the input level when I move the threshold from the center to CW nothing happens on the sound and the meter immediately stops to move. I’ve tried a really hot signal input as well as cold signal and It doesn’t make any difference. This is the thing that seems weird to me. It’s like something stops the circuit when the pot moves on the right part of the voltage divider. The only thing that keeps on working is the gain pot.
 
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gyraf

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There is perhaps some misconception of the way it works? Why would you expect the compressor to react at threshold pot fully CW?

turning threshold all way up equals turning all way down for the signal-to-sidechain - threshold value here is somewhat higher than +20dBu, in effect bypassing the compression

if you for some reason WANT to have a reduced range of threshold, just put in a resistor in series with one of the ends of the potentiometer

/Jakob E.
 

1wildthing

Member
Joined
Jan 27, 2021
Messages
10
up equals turning all way down for the signal-to-sidechain - threshold value here is so
There is perhaps some misconception of the way it works? Why would you expect the compressor to react at threshold pot fully CW?

turning threshold all way up equals turning all way down for the signal-to-sidechain - threshold value here is somewhat higher than +20dBu, in effect bypassing the compression

if you for some reason WANT to have a reduced range of threshold, just put in a resistor in series with one of the ends of the potentiometer

/Jakob E.
Sorry guys it was my fault. I found another faulty solder joint. Now it works! Time to start the super side chain board. Thanks for your help!!!
 

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