SSL Bus Compressor 2

[verstaerker]

den gab bis gestern für 34€, also hab ich mal zugeschlagen

SSL Native Bus Compressor 2

SSL Bus Compressor 2

store.solidstatelogic.com

Weiß jemand wieso die compression ratio 3 sowohl am reduction-meter also vom Höreindruck , deutlich mehr zupackt als z.B 20?

Die Anleitung schweigt sich dazu leider aus

 

[verstaerker]

oder kennt jemanden n Artikel der die grundsätzliche Funktionsweise des SSL Bus Compressor erklärt ... dieses Verhalten ist bei allen bekannten Emus so

 

[strangelove]

"It’s common knowledge that if you increase the ratio on a compressor, the amount compressed should increase as well. This is of course, if the threshold and other settings remain the same.

When it comes to the SSL compressor, increasing the ratio won’t lead to an increase in gain reduction. So what’s happening here?

It turns out that in both the hardware and software emulations of the compressor, changing the ratio automatically alters the threshold, in an attempt to keep gain reduction the same.

This is due to the designer’s desire to allow the engineer to hear the compression equally across ratios. This may be helpful to some, but if you didn’t know this fact, you may have compressed either more or less than you intended.

Keep this in mind the next time you use the SSL compressor. Set the ratio first and then dial in your other settings – otherwise you may compress too much or too little."

Von hier:

What You Need to Know About the SSL and 1176 Compressors — Sage Audio

If you’ve used these compressors, or intend to do so in the future, read along to know some strange but incredibly important facts about how they function.

www.sageaudio.com

 

[verstaerker]

Vielen Dank!

 

[strangelove]

Mir war das auch überhaupt nicht bewusst, obwohl ich den SSL Bus Compressor seit Jahren benutze.
Allerdings immer nur sehr Konservativ bei 2:1 auf dem Master. 20:1 habe ich tatsächlich bis heute nicht einmal ernsthaft ausprobiert..

 

[strangelove]

Im Manual von Cytomics "The Glue" steht auch was in der Richtung.
Die Ratio scheint aber eher das Knee als direkt den Threshold zu beeinflussen (kommt aber fast aufs selbe raus).

"Ratio: 2, 4, 10 The Ratio controls how much compression to apply once the signal has passed the Threshold level and the Attack has allowed the compression to start acting. The Ratio numbers are sometimes confusing since they are a measure of slope rather than a percentage.
This is outlined in the table below:

Ratio Equivalent Percentage Gain reduction for per 10 dB over threshold
2 50% 10*0.5 = -5 dB
4 75% 10*0.75 = -7.5 dB
10 90% 10*0.9 = -9 dB

So as you can see a ratio of 10 is very steep, in fact a ratio of 20 would only give you an extra -0.5 dB of gain reduction per 10 dB over the threshold, and an infinite ratio would only give you an extra -1 dB over a ratio of 10. Because of the structure of The Glue the knee shape is linked to Ratio, a ratio of 2 has a soft knee, 4 has a medium knee and 10 a sharper knee."

Quelle:

https://cytomic.com/files/TheGlue-Manual.pdf

 

[verstaerker]

Im Manual von Cytomics "The Glue" steht auch was in der Richtung.
Die Ratio scheint aber eher das Knee als direkt den Threshold zu beeinflussen (kommt aber fast aufs selbe raus).

"Ratio: 2, 4, 10 The Ratio controls how much compression to apply once the signal has passed the Threshold level and the Attack has allowed the compression to start acting. The Ratio numbers are sometimes confusing since they are a measure of slope rather than a percentage.
This is outlined in the table below:

Ratio Equivalent Percentage Gain reduction for per 10 dB over threshold
2 50% 10*0.5 = -5 dB
4 75% 10*0.75 = -7.5 dB
10 90% 10*0.9 = -9 dB

So as you can see a ratio of 10 is very steep, in fact a ratio of 20 would only give you an extra -0.5 dB of gain reduction per 10 dB over the threshold, and an infinite ratio would only give you an extra -1 dB over a ratio of 10. Because of the structure of The Glue the knee shape is linked to Ratio, a ratio of 2 has a soft knee, 4 has a medium knee and 10 a sharper knee."

Quelle:

https://cytomic.com/files/TheGlue-Manual.pdf

aber so wie die es beschreiben... müsste die compression ja immer stärker werden wenn man die Ratio erhöht.
Der threshold wird sich schon erhöhen mit der Ratio, anders kann ich mir dieses Verhalten nicht erklären.

 

[strangelove]

Naja, ein flacheres Knee bedeutet ja im Zeitverhalten auch was.

 

[CO2]

Im Manual vom SSLBus Comp 500 steht auch etwas darüber: