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ProAV TECHNOLOGY ROADMAP

The goal of the JT-NM ProAV Technology Roadmap is to build upon established Broadcast audio/video standards to define a practical set of AV-over-IP specifications suitable for wide-spread adoption by the ProAV industry. The roadmap addresses the following areas: Media Transport, System Control, Time Services and Directory Services. While acknowledging that ProAV standards and equipment may be used anywhere, the following definition is used to scope the roadmap:

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​The market for audiovisual (AV) communication equipment used in professional, industrial, commercial, and retail environments as a means to communicate with people.

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Note that in addition to this roadmap, the JT-NM maintains a list of ProAV User Requirements which may be viewed here.

EXAMPLE APPLICATIONS

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Examples of ProAV applications include but are not limited to:

  • AV systems in public or private spaces in business, education, government, hospitality, restaurants, sports venues, including mission-critical systems for evacuation and other kinds of emergency response

  • AV systems for emergency call centers (e.g. 911 systems) and related control rooms

  • Digital signage systems

  • Background music and noise-masking systems

  • Parliamentary conferencing and simultaneous translation systems

  • AV systems used for the production of live events for school sports, local government meetings, and other events that are typically supported by non-professional production personnel.

  • AV systems used in corporate, industrial, health, and educational venues for meetings, training, and meeting room presentation purposes.

  • Boardroom presentation and teleconferencing systems

  • AV systems that participate in mass notification systems as defined by, for example, the U.S. National Fire Prevention Association (NFPA).

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KEY FEATURES

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  • Secure from the start

  • Low cost installation/maintenance

  • Scales to and integrates with broadcast SMPTE ST 2110/AMWA NMOS installations

  • Compressed/uncompressed video & audio

  • Simplified timing and infrastructure requirements

  • Interoperability with existing IP-based broadcast facilities

  • Open discovery & registration services

  • Appropriate open control and configuration features

  • Supports software-only implementations

Stripe and Spheres

ROADMAP

PHASE 1

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SECURITY

Access, Authentication & Control Encryption

NMOS IS-10

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MEDIA

Uncompressed Video & Audio
ST 2110-20, AES67, AES3

Compressed Video

Open, Freely
Available CODEC

Precise Timing
SMPTE ST 2110-10, ST 2059

Simplified Timing
VSF-TRxxx, Async & Relaxed Timing

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CONTROL

Discovery, Registration, Connections
NMOS IS-04

Dynamic Connections
NMOS IS-05 & 07,
Receiver Capabilities, EDID / HPD

Phase 1 focuses on secure control, essence transport, timing, and connection management.  The work in this phase consists of identifying existing standards and specifications that can be applied to the A/V over IP effort, and creating new standards and specifications if required.  JT-NM stresses the use of existing work over creation of new technology, if possible.  As an example, the ProAV user requirements specify simplified timing, as compared to the timing approach currently taken in the SMPTE ST 2110/PTP for professional applications.  In this case, the Video Services Forum is developing a document (VSF-TRxxx, Async & Relaxed Timing) which builds on existing standards, but describes how to use those standards to achieve a timing implementation that is simplified.

PHASE 2

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SECURITY

Copy Protection

HDCP 2.3, VSF TRxxx
 

Content Encryption

VSF TR-xxx

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MEDIA

Forward Error Correction
VSF-TRxxx

ProAV Audio Formats
VSF-TRxxx

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CONTROL

Network Services and Node Behavior
ProAV version of TR-1001-1

Audio channel mapping
NMOS IS-08

Support for Legacy Integration
ARC, CEC, IR Remotes, GPIO, RS-232

Network addressing
IPv4/IPv6

Phase 2 builds on basic functionality by adding additional functionality as required by the ProAV user Requirements.  As with Phase 1, this phase seeks to identify existing standards and specifications, if possible.

PHASE 3

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SECURITY

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MEDIA

WAN & Internet Compression
Codecs widely implemented in AV-over-IP market

WAN Error Correction
Automated Return Request
(RIST or SRT, tbd)

Access Services
e.g. Closed Captioning SMPTE ST 2110-40 or 41

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CONTROL

Training and Certification
Curriculum and AVIXA Renewal Credits

Device / Content Control
Open, public control framework

USB – HID
Registration, Discovery, and Connection with support for Touch Screens

Phase 3 adds elements critical for ProAV WAN applications, and support for access services such as Closed Captioning.

TIMING & NETWORK INFRASTRUCTURE

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  • Simple/Relaxed Timing

    • Support for synchronous and asynchronous sources

    • No latency penalties

    • PTP optional/relaxed requirements

    • Automatic synchronization of audio/video streams

  • Simple Network Infrastructure & Network Services

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CONTROL

 

In order to facilitate rapid integration and operation of IPMX environments, certain elements of control and management must be implemented using open public APIs and protocols.

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Common Elements:

  • Adding new elements to the environment through semi-automated configuration

  • Provisioning (reading and changing) certain controls during build-out

  • Operating (reading and changing) certain controls dynamically

  • Inventorying the media devices and streams generated by devices

  • Distributing/Connecting media streams to destination devices

  • Monitoring (reading) certain operational status values

  • Reporting certain operational events to a logging system

  • Maintaining the management system relationship with the devices

  • Integrating with other enterprise subsystems

  • Securing access to the management environment and protocols

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JT-NM REQUESTS TO MEMBER ORGANIZATIONS

 

JT-NM requests that any JT-NM member organizations who undertake technical development of items on this roadmap, take this roadmap into consideration both at the beginning, and again at the conclusion of their projects.  JT-NM additionally requests that any significant deliverables be evaluated against this roadmap and the JT-NM ProAV User Requirements.

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CONTRIBUTORS

Jeff Berryman - Bosch

David Chiappini - Matrox

Bruce Devlin - SMPTE

Jack Douglass - Packetstorm

Richard Friedel - Fox Television

Brad Gilmer - AMWA

Hans Hoffmann - EBU

Thomas Kernen - Nvidia

Ievgen Kostiukevych - EBU

Jean Lapierre - Matrox

John Mailhot - Imagine

Karl Paulsen - Diversified

Danny Pierini - Matrox

Bob Ruhl - VSF

Andrew Starks - Macnica

Andre Testra - Matrox

Willem Vermost - VRT

Ethan Wetzell - Bosch

ACKNOWLEDGING AIMS...

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  • JT-NM thanks the AIMS ProAV Working Group

    • Initial contribution to JT-NM

    • Starting point for JT-NM ProAV Technical Roadmap

  • AIMS ProAV Working Group began in 2018

  • Surveyed the market to discover use cases and market desire for an open standard

  • Drafted a marketing roadmap for ProAV

  • Developed the marketing name IPMX (IP Media eXperience) to promote open AV over IP standards

  • Continues to promote and evangelize open standards for AV over IP

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