BETA046 posted. Biggest change is that now not just constant speeds ("maximum release speed") but also the non-constant speeds ("release time") can be progressive.
If you turn the Progressive release checkbox on, release speeds will generally be lower, depending on where the compressor is at that point (the attenuation level). If it's at -6 dB it runs at half the normal speed. At -12 it runs at 75%, and -18 it runs at 87.5%, etc. At 0 dB it doesn't release at all so the top part of the release will be extremely slow.
Hans, how is progressive release different between max dyn adjustment?
Do you prefer progressive release on?
From my perspective I had to lower release times but overall output was more consistent but not so "in your face".
It's a completely different thing and it may be possible to combine them (not tested, but I see no reason why).
Dynamic attack/release changes the attack/release times based on the input signal. It makes the compressor do less, in a smart way. The goal is to move fast on dynamic content and slow on already very flat content, to not make it any flatter.
Progressive release releases faster if you're down deeper. This means that pushing the compressor harder makes the sound denser. Louder sounds come out more dense.
Progressive release in combination with constant speeds, which does not work as intended in BETA046
(047 is coming), is basically what an Orban does. In Stereo Tool, you can normally drive compressors harder and nothing changes in the sound - with progressive that's completely different. So it's an extra option to shape the sound.
The goal of dynamic attack/release is very different: Handle both short spikes and long non-dynamic sounds with as minimal as possible audible effects (go down fast on short spikes and move slowly on long loud sounds to not smash it).
I *think*, but more experimenting is needed, that dynamic speeds are mostly useful for the AGC. And progressive is probably not at all what you want in an AGC.
Edit: Ok that was the same answer twice, well, hopefully that also makes it twice as clear
With dynamic attack/release how is the target density determined from the input signal? Can the target density be adjusted since not everyone will desire the same density? Thanks