How to perform calibrate the of mixer output levels?

The purpose of calibrating the output is to be able to obtain the true transfer function gain independent on the volume setting of the Windows mixer controlled by WinMLS. For some sound cards, e.g. VXPocket, a measurement setup file is available with nominal calibration settings.

The procedure for calibrating the output mixer is found from Measurement->Calibration…. Click the  button to open the dialog shown below.