Program Loudness Report Tab

The program loudness report tab is used to display audio levels of digital content. MIS compares the program to a user defined reference value. If a violation occurs MIS turns that portion of the graph red. The info image icon provides more information about each of the reporting options.

Use the Search feature to select the channel/program of interest, loudness settings and report timeframe. MIS supports several loudness monitoring methods. Once the method is selected additional fields are displayed.

To hide programs that do not contain loudness data click the image show/hide icon at the top of the report page.

Use the Audio Channels selector to set which channels are used by the report.

If desired you can play the clip by clicking on the video icon.

Figure: Channel Loudness Report

Figure: Channel Loudness Report

Report Measurement Fields


Pauses loudness measurement during soft passages for a more accurate report.


(Dialogue normalization level) - Metadata received from the digital AC3 stream used to control playback gain. Integer value with a range of 1 – 31 corresponding to a playback gain of 0 – -30dB (unity). The loudness graph is displayed as Loudness K-weighted relative to full scale (LKFS) to comply with FCC CALM requirements.

Long IPL

Weighted average selectable for the last hour or last 24 hours.

Fixed Number

Use this setting to override the default Dialnorm value of -31.


Use these values to set the loudness window. If loudness is lower than or higher than set point MIS turns that section of the graph red indicating a loudness violation.