Encoder configuration

Press the <Edit> icon to access details about the encoder.

Figure: Encoder sections

Figure: Encoder sections

Each encoder has eight configuration subsections.

  • Encoder configures specifics of name and display icons.

  • Input programs ingest settings.

  • Output configures specifics of how Volicon Media Intelligence service stores each channel and sub-encoder.

  • Storage configures storage location and duration.

  • Features enable loudness, thumbnails and NAVE.

  • Alerting sets error detection thresholds.

  • Captions configure CC and subtitles.

  • More configures miscellaneous settings.

At the bottom of each page is a <Save> button. Volicon Media Intelligence service will prompt you to save changes if you attempt to leave the section without saving changes.

Figure: Unsaved change warning

Figure: Unsaved change warning

Encoder: Information

Figure: Encoder settings

Figure: Encoder settings

Table. Encoder information

Encoder source

Indicates which of the four possible input types is in use – video capture card, Transport Stream, cloud or device direct

Encoder status

Real-time encoder status – running or stopped

Display name

Encoder name presented to users; used to create a user-friendly name for the channel

Encoder name

Read-only name created by Volicon Media Intelligence service

Probe name

Probe server on which the encoder is installed


Dropdown used to color code the player


Used to add an icon to channel name; <Browse file> icon used for workstation access to upload desired icon; typically for uploading channel logo, but may be any JPG or PNG image


Appears if the STB is configured for remote control; dropdown associates a specific bouquet with the STB; if more than one bouquet defined, use caution when changing to ensure services are available on the STB


Opens media player for the channel

Encoder: Input

This section is dependent on how the program is ingested by the Volicon Media Intelligence service. Currently, there are four types of video acquisition.

  • Video input: Capture card used to interface Volicon Media Intelligence service to a program source – typically an STB

  • Transport Stream (TS): IP-based direct program access

  • Cloud: IP-based, typically via CDN streaming

  • Device direct: Tethered cell phone acquisition

Figure: Video and audio input profile (capture card and TS)

Figure: Video and audio input profile (capture card and TS)

Table: Encoder video input (capture card and Transport Stream)

External switch output

If external A/V switch used, entry specifies which switch output port feeds associated encoder input, assuming switch has more than one output port; set value to 1 if external input switch not used

Restart on input recovery

Automatically restarts encoder when its input is recovered; relevant for Blackmagic cards only (to avoid timestamp issues)

Signal loss restart interval

During periods of no input, encoder automatically restarts at specified interval (to avoid timestamp issues)

Video device name

Text string with the card name and channel ID if the card supports multiple channels


Required text field

Connector type

Dropdown used to select video connector


Dropdown used to select type (i.e., PAL-B 1080i, frame rate and resolution)

Add format

Used to open dialog to create another format

Table: Encoder audio input (capture card and Transport Stream)


Card name and additional information about audio input type


Audio profile in XML format

Figure: Encoder Transport Stream input

Figure: Encoder Transport Stream input

Table: Encoder TS input


IP address or URL of the program source


IP port address to access the program

HTTP node name

The name of the HTTP node, as configured in the Mediahub, for streaming data of the required PID

Storage node name

The name of the storage node, as configured in the Mediahub, where data for the required PID is stored

Program name

The name of the program to encode the TS

Close gaps from cache

If encoder losses feed, it keeps recording black screen until feed returns; allows downtime to be represented in the recorded data

Detect PAT/PMT events

Depreciated, no longer used

Handle PAT/PMT events

Depreciated, no longer used

Handle XDS events

System to process Extended Data Services events and log them

Stop on scrambled

Ignores encrypted streams so Volicon Media Intelligence service does not generate erroneous alerts

Enable low-bitrate streams

Enable/disable handling of low-bitrate streams; usually disabled due to slowing down of recovery in event of connection loss; to be enabled if nearly no payload (e.g., black video); this should be enabled

Figure: Encoder cloud input

Figure: Encoder cloud input

Table: Cloud direct input profile


Dropdown used to select program source server – no Authentication, Akamai, Uplynk CMS


Akamai parameter

Shared key

Akamai parameter


Uplynk parameter

API secret

Uplynk parameter


URL or IP of proxy server if used


Channel-specific URL

Load data

Saves profile data


Bitrate and resolution

Video format

Normally set automatically based on the input feed, but may be sent manually

Audio format

Normally set automatically based on the input feed, but may be sent manually

Figure: Encoder device direct input

Figure: Encoder device direct input

Table: Encoder device direct input profile


Smartphone used to capture the program

Device ID

ID of the device as the Mediahub configured it

Device manufacturer

Smartphone manufacturer

Device model

Smartphone model name

Device name

The name of the device to be shown in Mediahub

Device serial number

The hardcoded serial number of the device; automatically detected


A list of all devices connected to the server

Display height

Height in pixels

Display orientation

Landscape or portrait; if blank, defaults to portrait

Display width

Width in pixels

Mediahub host

Mediahub IP address typically localhost

Mediahub port

IP port typically 8080 to avoid conflicting with other web servers

VMN port

Port used to stream content from the device

Encoder: Output

Unlike inputs, the output settings are the same for all encoders, regardless of how the program is ingested into Volicon Media Intelligence service.

Figure: Encoder output

Figure: Encoder output

Table: Encoder output – video output profile

Video codec

Dropdown used to specify how Volicon Media Intelligence service encodes the program for storage; Volicon Media Intelligence service supporting H264, WMV3, WMVA and WVC1

Bitrate (Kbps)

Dropdown used to specify program bitrate for storage


Dropdown used to specify screen resolution for storage

Compression quality

Compression quality is a tradeoff – the higher the level, the less storage required at the expense of greater CPU processing

Force minimum GOP size

Optional field to set MPEG group of picture structure; setting defines the number of frames dependent on preceding frame before another I frame; MPEG removes redundancy spatially within a frame and temporally among frames; I frame (or key frame) – the only frame that can be decompressed without reference to other frames

Reduce frame rate

Reduces frame rate to reduce output bandwidth consumption

Reduce frame rate target FPS

Output frame rate value

Table: Encoder output – audio output profile

Audio codec type

Dropdown used to specify how Volicon Media Intelligence service encodes audio for storage: AAC, WMA and WMApro; when configuring audio codec type that describes the audio codec used by this encoder, codec changes for each audio stream in feed

Audio languages

Specifies one or more audio channels

Table: Encoder output – live stream profile


Live stream used to view low-latency video on monitor page; note this feature is CPU intensive


Each encoder has a primary video codec that creates the channel stream digital multimedia archive. If desired, additional sub-encoders may be configured. Sub-encoders are typically set for lower resolution and bitrate, in comparison to the primary codec that serves specific monitoring or file exchange requirements.

Sub-encoders have the same server requirements as the identical setting for the primary codec sequentially; CPU cycles are needed for the compression engine, and disk storage is needed for the resulting file.

Table: Encoder output – sub-encoders


System-created name derived from bitrate and resolution

Bitrate (Kbps)

Drop-down selection of bitrates


Drop-down selection of screen resolution


Adds or deletes a sub-encoder

Encoder: Storage

This section defines where video is stored, how long it is saved and the disk threshold.

Figure: Encoder storage

Figure: Encoder storage

Table: Encoder storage – general

Main index path

Example: C:\Video\indices\AB1.idx; normally set by Volicon Media Intelligence service to default path on main HDD

Free disk space threshold

Amount of space not to be used by Volicon Media Intelligence service, but kept free for other use; value to be 0-0.9, where 0 means no free space reserved, and 0.9 means 90% of storage location kept free

History depth

Specifies how long programs are stored; numeric value specifying how many unit intervals video will be stored; e.g., value of 30 and interval of days will store video 30 days

Table: Encoder storage – storages


Absolute path to the storage location


The maximum percentage of the total size of the storage location used by the channel


Add/remove storages

Table: Encoder storage – long-term storage (LTS)

History depth

Specifies duration of program storage; streams normally stored in local storage; if inadequate, Volicon Media Intelligence service Support to configure LTS; numeric value of unit intervals video will be stored: dropdown specifying minutes, hours, days, weeks, months, years; setting value to 0 means data not saved


LTS storage location; typically C:Video\LTS\ if LTS is running on the same computer

Min free disk space

Minimum disk space available on archive machine before archiving; value is in Gigabytes


Specifies if this encoder is a backup encoder for another system

Master encoder name

The name of the master encoder; only relevant when backup encoder is used

Master encoder path

Absolute path to the storage location of the master encoder; only relevant when backup encoder is used

MaxGap size

The maximum gap size between files

Slave lag

Specifies how long slave will wait before starting to archive its content; setting to less than one week not recommended – may cause master and slave to archive needlessly

Encoder: Features

This section specifies audio loudness monitoring, DPI and AFD metadata processing, thumbnails and NAVE.

Loudness monitoring

Figure: Encoder features – loudness

Figure: Encoder features – loudness

Table: Encoder features – 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


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


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

Table: Encoder features – AC-3


Dolby: Adaptive Transform Acoustic Coding 3 enable/disable

Enable DRC

Dolby: Dynamic Range Compression

Figure: Encoder features – DPI and AFD

Figure: Encoder features – DPI and AFD

Table: Encoder features – Digital Program Insertion (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

Table: Encoder features – Active Format Description (AFD)

AFD profile

AFD profile in XML format


Not used in Volicon Media Intelligence service

Table: Encoder features – interactive services


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: Encoder features – thumbnails

Thumbnails enable

Checkbox to enable/disable thumbnails


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


Dropdown used to specify thumbnail image resolution

Sampling rate

Every x seconds, saves an image to storage

Figure: Encoder features – text overlay

Figure: Encoder features – text overlay

Table: Text overlay


Enable/display of embedded text


Number of free text lines


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

Table: Timestamp

Timestamp enable

Turns on timestamp overlay for this encoder channel


Dropdown used to position the info on player screen

Auto calculate offset from UTC

Based on probe’s time setting


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


Encoding of television signals, such as in the Nielsen system, is used for audience measurement (e.g., to accurately identify television distributors, including broadcast stations or cable networks). The Nielsen Media approach installs metering devices at the user’s premises. This device identifies stations and networks to which the end user tunes in. By encoding content with a NAVE unit, ratings data for programming can be provided  whether it is received in a digital, analog or combined viewing environment. Reading the aforementioned watermarks, or other codes, inserted into the television signal at the distribution source through the NAVE unit captures this end user data.

Figure: NAVE watermarking

Figure: NAVE watermarking

The NAVE is a system capable of inserting Nielsen Media Research proprietary NAVE source identification watermarking directly into the audio portion of compressed digital ATSC Transport Streams prior to broadcast. NAVE devices can simultaneously insert watermarking data on multiple independent digital television programs being broadcast, whether they are standard-definition (SDTV) or high-definition (HDTV). The watermark is capable of identifying the Provider Content (PC), the network on which the content was distributed (NT) and the final distributor (FD), say in the case of local broadcast station or cable channel. The watermarks include a timestamp, so if the content viewed is time-shifted (VOD) within a reasonable time frame, that usage data is also captured.

If any station’s NAVE encoder is interrupted, the meter device installed in Nielsen sample premises collects and stores passive signatures for all non- encoded programming viewed. These signatures are downloaded each night to Nielsen’s operations center. To identify viewing, the passive signatures collected from the meter device in the premises are matched against the signatures in the library.

The feature allows you to define the watermarks to be accepted and the faults/recoveries to occur by configuring the watermarks’ creation time and the number of good watermarks that should be received per period.

Figure: Encoder features – NAVE

Figure: Encoder features – NAVE

Table: NAVE


Enable/disable Nielsen Audio Video Encoder monitoring; requires a subscription to Nielsen service

Score line

Percentage of good watermarks in the monitored window; labeled “Error percent” in early versions of Volicon Media Intelligence service


Filters watermarks by their levels


Final Distributor: Entity that delivered content to customer


Provider Content: Entity that originated content


Video on Demand: Time-shifted viewing


Network that delivered the content

Minimum good watermarks

If number of good watermarks during sliding window are lower than minimum value, fault detected

Station IDs

List of good watermarks you intend to accept; if field left empty, all watermarks will be detected; if some channels support more than one station ID (SID), insert into SID array all IDs you intend to accept; single SID sufficient to satisfy minimum good watermarks and watermark percentage recovery variables to avoid faults and stay recovered

Warning percent

If value greater than score line but less than warning percent, warning message will be sent; other cases to result in recovery

Watermark age

The watermark’s time from its creation

Watermark max age

Filters out watermarks older than threshold and reports no faults on these; if left at 0, variable watermark age taken; e.g., if watermark is 10 days old, any older watermarks to be ignored; if the watermark’s age is less than threshold, it will be processed as regular watermark

Window interval

Faults detected and recoveries enabled during sliding window interval; e.g., if you define 30-second window for each second, 30-second window will be checked (0-30, 1-31, 2-32…) against various parameters used

Video quality

Requires optional module to monitor video quality

Encoder: Alerting

The alerting feature configures Volicon Media Intelligence service to constantly monitor program streams. If the stream does not meet the monitoring criterion for the duration specified, an alert is generated. A single alert is dispatched for each event. If the stream returns to normal in excess of the recovery time, a new alert is generated if the stream once again falls outside monitoring parameters.

Figure: Encoder alerting – video

Figure: Encoder alerting – video

Table: Encoder alerting – video

Video loss

When video framing loss (commonly known as “sync”) is detected by hardware and persists over video duration threshold, then VIDEOLOST alert generated; only duration threshold is configurable, not level threshold; e.g., video lost signal = TRUE over duration of 31 sec exceeding cycle time and duration threshold; when notification enabled, SNMP trap and email messages are sent (if configured by admin)


Default: 30 seconds


Default: 10 seconds

Black screen

When percentage of black pixels (BS) in video frames of incoming video signal exceeds certainty threshold and persists over duration threshold; when notification enabled, SNMP trap and email messages are sent (if configured by admin)


Default: 30 seconds


Default: 10 seconds


Default: 95%

Static screen

Detected when video frame pixels at same frame location are compared (for color and luminosity) to pairs of consecutive video frames; and percentage of matching pixels exceeds static screen (SS) threshold and duration threshold; when pixel color, luminance and locations matching between pairs of consecutive video frames exceed 95% of all video frame pixels for longer than 30 seconds, video static alert is declared

When notification enabled, SNMP trap and email messages are sent (if configured by the admin)


Default: 30 seconds


Default: 10 seconds


Default: 95%

Figure: Encoder alerting – slate

Figure: Encoder alerting – slate

An alert is generated when a matching slate ID is detected.

Figure: Encoder alerting – audio

Figure: Encoder alerting – audio

Table: Encoder alerting – audio

Audio high

An audio high fault is detected when the incoming audio stays above the high-level threshold long enough to exceed the audio duration threshold.

Audio high alert example: An audio alert is configured on a channel. Certainty threshold = -1 dB; duration set to default of 30 seconds; audio input signal detected = 2 dB (above certainty) for six minutes (exceeding the cycle time for the lineup plus the duration threshold). A media fault, therefore, is detected, generating an audio alert and automatically creating a fault clip, which is stored under the clips (fault clips section on the Volicon Media Intelligence service media player).

When the notification is enabled, SNMP trap and email messages are sent (if configured by the admin).

If you wish to change any certainty, duration or recovery levels, please contact Volicon Media Intelligence service Support.


The default is 30 seconds.


The default is 10 seconds.


The threshold is -1dB.

Audio low

A low audio fault is detected when the incoming audio stays below the low-level threshold, and the duration of the fault exceeds the duration threshold. Disable audio alert detection on channels with frequent silence.

When the notification is enabled, SNMP trap and email messages are sent (if configured by the admin).


The default is 30 seconds.


The default is 10 seconds.


The default is -40dB.

Figure: Encoder alerting – metadata

Figure: Encoder alerting – metadata

Table: Encoder alerting – metadata


Monitors embedded channel metadata


Default: 30 seconds


Default: 10 seconds


Defines number of metadata instances missed in detection threshold duration; e.g., if threshold set to 5, and more than 5 instances missed during 30-second window, then alert generated

Encoder: Captions

This section determines how Volicon Media Intelligence service processes closed captioning and subtitles.

Figure: Encoder captions

Figure: Encoder captions

Table: Encoder captions – closed captioning

CC adjust

Not currently relevant to Volicon Media Intelligence service

Metadata enabled

Enable/disable CC monitoring

Metadata type

Dropdown used to specify which data the format channel is using

TS teletext stream ID

The ID of the teletext stream inside the Transport Stream program

Table: Encoder captions – indexing profile

Database URLs

Host and profile name


Add or remove metadata database URLs

Table: Encoder captions – profile

File name

Database name; <Select file> to add additional profiles

Table: Encoder captions – DvB subtitles language


Name of the language


Stream ID of the subtitle language

Milliseconds delay

The delay of subtitles in relation to the video; used to synchronize subtitles to video


To add/remove subtitle language

Encoder: More

This section configures Volicon Media Intelligence service to recover from encoder errors and sets encoder hibernation time.

Figure: Encoder – more

Figure: Encoder – more

Table: Encoder (more) – Error recovery

Maximum restart retries

The maximum number of times the watchdog will attempt to restart the encoder

Maximum service recoveries

The maximum number of times the watchdog is allowed to restart the entire service

The restart period can be used to force the encoder to restart based on uptime or a specific date and time.

Table: Encoder (more) – Restart period


No force restart

Maximum uptime

Restarts encoder when elapsed run-time exceeded

Restart schedule

Forces restart at specific date and time

Cron line

Selected schedule in Cron format

Table: Encoder (more) – Hibernation


Hibernation start day/time


Exit hibernation day/time


Add and remove hibernation events