The Logic Off Topic list

I don't have a clue, but the Apogee Rosetta has a 'soft limit' which I 
believe converts the linear signal to a log signal above a threshhold. 
Mu, is often used for the mean or average by the way.

>What I know of it is that it acts as a normal compressor reducing the 
>output level above a given threshold by a given ration, but if the input 
>level should rise above another given threshold (call it Mu for 
>convenience, which is higher than the Threshold level...) then the input 
>will be passed through as an exponential in excess of the Mu level, ie. no 
>big discontinuity when the Mu level is reached.
>
>Is this correct? Are there any other factors involved? Can anyone point me 
>to where I might find info online or elsewhere? I need to know this as I 
>am trying to write a Variable Mu VST compressor.