Due to suggestion of some GS colleague, I’ll re-post my experience with Nuendo’s VCA faders.
Few days ago I made a mix for film using Nuendo’s VCA’s. I spent a whole day and exported the 5.1 upmix. The next day, when I re-opened that project to adapt the DX to other language, I realized, that all the VCA balance I carefully made is suddenly changed!!
The audio tracks seem to be still assigned to VCA faders in the way I did it, the automation I wrote on VCA channels appears to be there, “read” is on, but the balance I made between VCA groups (stems assigned to VCA faders) is gone - and that just by re-opening the Nuendo project!
This happened on Nuendo 7.1.35 in 64bit Windows 7 Pro environment.
I was totally confused, rather shocked and decided to do an experiment. The description follows:
I made a Nuendo project from “zero”, at 48kHz 24bit by adding one Audio track, putting a plugin with a plain sine Test tone coming out of it and assigning a VCA channel to that Audio channel as shown in the picture.
Accordingly I made a very simple automation on VCA, containing two values and monitored the outcome, using Nuendo’s Loudness meter reading LUFS.
Here are the results:
Two “steps” on VCA automation resulted in following two values:
-23dB LUFS and -20,1dB LUFS. I save that project and exit Nuendo.
I restart Nuendo and open the project i just saved. I check the loudness of my previously saved automation steps. I did nothing, but now the values have changed: -20,1dB LUFS and -17,1dB LUFS. I exit the project and quit Nuendo.
I restart Nuendo again and open that project again. I check the situation just as I did previously. Voila. Everything has changed again! Now the meter reads -14,1dB LUFS and 11,1dB LUFS!!
I’m more than confused. The VCA changes the output just deliberately! How is that possible?!
Needless to say, I was forced to get rid of all the VCA automation I made - and I did it first time on Nuendo - and redo the mix by using Groups.
Any clue guys? Can anyone using the same version / system reproduce this bug? An input from Steinberg would be appreciated.