It is a cross-platform VST plug-in meter for digital audio workstations.
PPMulator is a cross-platform VST plug-in meter for digital audio workstations which exactly mimics the look and feel of a professional broadcast Peak Programme Meter (PPM).
By adding this plugin to the master output of your audio editing program, you can record, edit, mix and export your audio within a precisely-calibrated workspace - something which is often impossible to do when working in a non-studio environment.