I understand that the Sonnox Restoration plug-ins may need some time to “learn” the material they are processing before they can be fully operable.
I have been restoring an old vinyl LP and have checked and adjusted the three plug-ins (De-Noiser, De-Clicker and De-Buzzer) over a specimum of about 20 seconds of a track. My view is that this 20 second section is a good representation of the whole LP, so the settings should be similar for the rest of the file.
I noticed that when I have the De-Clicker set up on a looped 5 second file properly with the plug-ins working and thus no clicks audible, that when I come back to it with the same settings it took 4 or 5 passes before the clicks became inaudible again. I assume that means it needs 5 passes or maybe simply it needs 10 - 20 seconds to learn the file.
In any event, I tried to render a file (a full 3 minute track of the LP) with all three Sonnox plugins active, and Wavelab came up with a message saying that “the De-Buzzer will take time to learn the file and the beginning may not be dealt with fully. Please use Freeze”. The message did not mention De-Clicker or De-Noiser.
So, how do users approach this? Obviously I have to use freeze on the De_Buzzer, but should I simply put all three plug-ins on Freeze?
The reason why I think this may be an option is that, as I said earlier, I am working on a recorded vinyl LP and I believe that the setting on that part I checked will be the same for the whole LP, as no parts are particularly worse or better than the part I have assessed.
So, the bottom line of my question is : is it best to use Freeze if I think I have already selected settings for a small section that will do for the whole file?
Please excuse me if I have misunderstood anything because I am new to restoration and the Sonnox plug-ins.