Volume fading in and out


I have a problem of random volume level variation. It applies to the entire mix, as well as individual tracks. It is rarely in the same place. If I export the mix, the problem is transferred as well. The problem started after I installed several free plugins.

Thanks for help


Isn’t it protection of one of the plug-in? Make sure you are not used any Trial/Demo version. Some of the plug-ins vendors use noise or silent to make sure, you cannot use the plug-in without registration/activation of the plug-in.

Thanks, problem solved. In fact, it was not any of the plugins I downloaded, but the voxengo curve eq that is available as demo in Cubase artist 9.