Loudness monitoring¶
Loudness |
With optional loudness module enabled, Volicon Media Intelligence service performs loudness meter measurements to meet following standards: EBU R 128, BS-1770-1, BS-1770-3, ATSC A/85 and EBU Tech 3341/2/3; Volicon Media Intelligence service loudness module, accurate per each video frame, takes measurements every 100 milliseconds; measurements able to be done with/without gating windows (-10 dB but adjustable) |
Gating mode |
Dropdown used to select ATSC1, ATSC3 or EBU |
Input adjustment |
Adjustment to input level for fine tuning; a floating-point value will be added to the input measurement |
LRA |
Loudness Range Measurement (LRA) quantifies variation in time-varying loudness measurement; supplementary to main audio measure, program loudness, of EBU R 128; measures variation of loudness on macroscopic time-scale loudness units (LU); LRA computation based on measurement of loudness level specified in ITU-R BS.1770 - with different gating threshold; LRA not to be confused with other measures of dynamic range |
Long IM |
Long-form Integrated Measurements: Greater than two minutes; total of seven user-defined, configurable measurements (e.g., 1 hour, 6 hour, 1 day, 5 day intervals); long-term values Volicon Media Intelligence service default setting: 60, 360, 1440, 0, 0, 0, 0 |
Short IM |
Short-form Integrated Measurements: Two minutes or shorter; total of seven user-defined, configurable measurements (e.g., 10s, 30s, 60s); short-term values Volicon Media Intelligence service default setting: 10, 15, 20, 30, 60, 120, 0 |
Pre-dialnorm |
Dialnorm indicates level of average spoken dialogue within encoded audio program; short-, long-term values often factory preset; Dialnorm not to be enabled when encoder ingesting digital audio stream (e.g., optical, S/PDIF or Dolby AC-3) |
True peak |
Enables monitoring the value of the audio signal waveform of a program in the continuous time domain; detects peak loudness that otherwise would escape the sampling process |
AC-3 |
Dolby: Adaptive Transform Acoustic Coding 3 enable/disable |
Enable DRC |
Dolby: Dynamic Range Compression |
DPI |
Digital Program Insertion |
Events interval |
List of intervals to be monitored for in/out DPI events |
Log events |
Enable/disable logging of DPI event to a database |
Stream IDs |
List of DPI streams to be monitored |
DPI offset |
Offset of DPI event relative to A/V (in milliseconds) |
Default local avail durations |
Default location available duration to use (in milliseconds) |
Default pre-roll |
Default pre-roll time before local avail (in milliseconds) |
Indexing settings |
New feature not yet implemented |
AFD profile |
AFD profile in XML format |
Type |
Not used in Volicon Media Intelligence service |
Enable |
Only applies to RPM systems: Identify objects and images on screen; used for channel change verification |
Thumbnails enable |
Checkbox to enable/disable thumbnails |
MSMQHost |
IP address or URL of Microsoft Message Queuing used to access video clip thumbnails |
Resolution |
Dropdown used to specify thumbnail image resolution |
Sampling rate |
Every x seconds, saves an image to storage |
Text |
Enable/display of embedded text |
Height |
Number of free text lines |
Width |
Number of characters in a free text line |
Score line |
The line on which the scores will be burnt in a 1-based index system |
Status line |
Line on which scores to be burnt in 1-based index system; if using default height, this is line before last |
Video input line |
Setting for the video input line burnt into the video |
Timestamp enable |
Turns on timestamp overlay for this encoder channel |
Alignment |
Dropdown used to position the info on player screen |
Auto calculate offset from UTC |
Based on probe’s time setting |
Format |
Specifies how time is displayed: %month%-%day%-%year%%hour%:%minutes%:%second%/%frame% |
Offset from UTC |
Manually sets a time zone offset; setting overrides probe O/S time zone setting; Volicon Media Intelligence service uses value instead of offset in probe |