Volume and Input Level(s) Dialog

Displays a dialog box for setting volume and input level(s).

The content of the dialog box to be displayed depends on the settings. If the WinMLS mixer is used and if measuring in sync. loop-back mode (see Measurement->Sound Card Settings...), it will look like the figure below.

If sync. loop-back mode is not used, the controls Sync.Out and Sync. Input are not needed and will not be displayed in the dialog box. The horizontal waitbar at the bottom of the dialog box informs the user about the measurement progress.

The level indicator lamp shown to the right in the figure above is colored red if there has been clipping during a measurement. If this is the case, the measurement is probably wrong.

The sliders are used to set the volumes. If the mixer is not calibrated, Uncal. will be written above the volume which may be given a value in the range 0-65535. Changing the volume from e.g. 20000 to 20001 will usually not make any difference. How much it has to be changed to actually change the volume is sound card dependent.

The calibration procedure will determine the volume in dB, and if calibration is turned on (Measurement->Hardware Calibration) the last part of the dialog box shown in the figure above will look as shown below.

It is now possible to see how much the volume is changed in dB, and this information is used to determine the absolute gain of the systems to be measured.

If the sound card does not support the WinMLS mixer, WinMLS is not able to set the volumes and the dialog shown below will be displayed.