Loudness Monitoring

Figure: Encoder Features - Loudness

Figure: Encoder Features - Loudness

Table: Loudness Monitoring

Loudness

With the optional loudness module enabled, the MIP performs loudness meter measurements to meet the following standards: EBU R 128, BS-1770-1, BS-1770-3, ATSC A/85 and EBU Tech 3341/2/3.

MIP loudness module is accurate per each frame of video and takes a measurement every 100 milliseconds. Measurements can be done with or without gating windows (-10 dB but adjustable).

Gating mode:

Pulldown 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 the variation in a time-varying loudness measurement. Loudness Range is supplementary to the main audio measure, Program Loudness, of EBU R 128. Loudness Range measures the variation of loudness on a macroscopic time-scale, in units of LU (Loudness Units). The computation of Loudness Range is based on a measurement of loudness level as specified in ITU-R BS.1770, albeit with a different gating threshold. Loudness Range should not be confused with other measures of dynamic range.

Long integrated measurements:

Long Form Integrated measurements greater than two minutes. There are a total of 7 user defined, configurable measurements - e.g. 1 hour, 6 hour, 1 day, 5 day intervals. By default MIPsets the long term values as follows: 60, 360, 1440, 0 , 0 , 0, 0.

Short integrated measurements:

Short Form integrated are measurements which are two minutes or shorter. There are a total of 7 user defined, configurable measurements - e.g. 10s, 30s, 60s. By default MIP sets the short term values as follows: 10, 15, 20, 30, 60, 120, 0.

Pre Dialnorm

DialNorm indicates the level of average spoken dialogue within the encoded audio program.

Typical values for short and long term are factory preset.

DialNorm should be enabled whenever an Encoder is ingesting a digital audio stream such as 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.
Table: AC3

AC3

Dolby - Adaptive Transform Acoustic Coding 3 enable/disable.

EnableDRC:

Dolby – Dynamic Range Compression.
Figure: Encoder Features - DPI and AFD

Figure: Encoder Features - DPI and AFD

Table: Digital Program Insertion (DPI)

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 preroll time before local avail (in milliseconds).
Table: Active Format Description (AFD)

AFD profile:

AFD profile in XML format.

Type

Not used in MIP.
Table: Interactive Services

Enable

Only applies to RPM systems – identify objects and images on screen. Used for channel change verification.
Figure: Encoder Features - Thumbnails

Figure: Encoder Features - Thumbnails

Table: Thumbnails

Thumbnails Enable

Checkbox to enable/disable thumbnails.

MSMQHost

IP address or URL of Microsoft Message Queuing used to access video clip thumbnails.

Resolution

Pulldown used to specify thumbnail image resolution.

Sampling Rate

Every x seconds save an image to the storage.
image
Table: Text Overlay

FreeText

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:

The line on which the scores with be burnt in a 1 based index system (so if using the default height this is the line before last.

Video input line:

Setting for the video input line burnt into the video.
Table: Timestamp

Timestamp Enable

Turn on timestamp overlay for this Encoder channel.

Alignment

Pulldown 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 set a time zone offset – this setting overrides the Probe O/S time zone setting. MIP uses this value instead of the offset in the Probe.