Resources

Resources

Category: Resources

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Resources

Training

Presentations

AES70 Tutorial 2019
An Introductory Tutorial to AES70

From: OCA Alliance

AES70, also known as OCA, is an architecture for system control and connection management of media networks and devices. AES70 is capable of working effectively with all kinds of devices from multiple manufacturers to provide fully interoperable multivendor networks.

This presentation, originally given at AES in 2019, will provide an overview of the AES70 standard. Aimed at developers, users, and technical decision makers, members of the OCA Alliance will cover topics such as the object model, developer resources, and the current and future objectives of the standard.

Click on the image to the left to view and download.

Adding AES70
How To Add AES70 Control to Your Products

From: OCA Alliance

AES70, also known as OCA, is an architecture for system control and connection management of media networks and devices. AES70 is capable of working effectively with all kinds of devices from multiple manufacturers to provide fully interoperable multi-vendor networks.

This presentation, originally given at AES in 2019, will provide a deep-dive on the architecture and implementation of the standard, demonstrating how to implement AES70 inside of a device and how AES70 controllers work. Aimed at developers, members of the OCA Alliance will cover topics such as the object model, class tree, protocol and implementation options, and practical advice for AES70 implementation.

Click on the image to the left to view and download.

New-In_AES70-2018
What’s New In AES70-2018

From: OCA Alliance

This presentation, given at the 2018 AES Convention in New York provides a summary and overview of the enhancements and additions to the AES70-2018 standard.

The complete standard is available from the AES.

Click on the image to the left to view and download.

2018-10-25_11h08_36
AES70 At A Glance

From: OCA Alliance

AES70 is a standard that supports Open Control Architecture in a highly flexible, scaleable, and robust manner. Through it’s object-oriented design, the standard allows the implementation of a standards-based control mechanism for devices and controllers in an open manner that can be used along side any (or no) audio transport to create a complete media networking device.

This presentation, given at the 2018 AES Exhibition in New York provides an overview and introduction to the AES70 standard and serves as a foundation for the other information and whitepapers that are available from The OCA Alliance.

Click on the image to the left to view and download.

Categories
Resources

White papers & Documents

Whitepapers

AudioAndControlOverIP
Audio & Control Over IP with Stagetec & Delec Routers

From: OCA Alliance

There has been several attempts in the past by a variety of audio manufacturers to create an audio over IP standard. To date, none of these ‘standards’ have seen widespread adoption within the broadcast industry.

The vision within the Mediagroup has always been that any standard which we implement within our NEXUS audio routers and DELEC Intercom routers, need to fulfill the same stringent criteria we impose upon our own protocols – designed for use within Broadcast and other real time live production environments.

Click on the image to the left to view and download.

OCAWhitepaperV3.1
About Open Control Architecture

From: OCA Alliance

Designing, deploying and managing professional media networks, such as for concert venues, touring shows, broadcast intercom, etc., can be particularly challenging because of the need to bring together a variety of AV equipment into a unified whole. While much progress has been made over recent years on standardizing signal level communications, there is no industry-standard method for managing the interconnected equipment to efficiently produce the desired results.

These challenges are made even more difficult by the frequent requirements to quickly adapt network configurations for the ad hoc accommodation of other equipment, such as concert tours, guest artists, special events, etc. For AV network managers and users, the optimal configuration needed to achieve artistic and fidelity objectives can be a constantly moving and elusive goal.

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Other documents

What's new in AES70
AES70-2023

This presentation covers all updates and features included in AES70-2023. AES70-4, AES70-21 and AES70-22, the new core standard and two adaptations open the doors to JSON, AES67/SMPTE ST 2110-30 and MILAN streaming connections, all with additional benefits included in the updated standard.

Click on the image to the left to view and download.

Using AES70
Using AES70 – A Technology Overview

This presentation introduces the fundamentals of AES70; the standards family and their functions, some basic class overviews, AES70’s control & monitoring repertoire, inner workings of the technology and developer resources.

Click on the image to the left to view and download.

Diagram
AES70 Controller UI

This presentation demonstrates how to monitor and control a Smartpi DSP using AES70 with the following open source code libraries:

  • React
  • AUX Control Widgets
  • AES70.js

Click on the image to the left to view and download.

Connection-Management-With-AES70-v03-
Connection Management with AES70

It is now feasible to build IP-network-based professional media systems and studios. Such networks offer great flexibility, but pose an operational challenge: How do we control and manage the enhanced routing capability, especially in multivendor systems?

Today’s media networks need standardized connection management services to help manage devices and their media interfaces and connections. .

Today, there are various media transport protocols available. Some of them include connection management schemes, some don’t. The schemes may incorporate standard elements, but none is fully standardized. They do not interoperate.

The need for a standard connection management solution remains unmet.

Click on the image to the left to view and download.

OCA-MicroDemo-Summary-v05-
OCA MicroDemo

The OCA MicroDemo is a demonstration product developed by OCA Alliance members Focusrite, Attero Tech, and Bosch. Its primary purpose is to prove that OCA can run well in lightweight hardware environments.

OCA is standardized by the Audio Engineering Society as AES70. The MicroDemo meets minimum requirements for AES70 compliance, and provides a small set of OCA-controlled application functions as well.

The finished schematic diagrams, board layouts, and custom software for the MicroDemo will be downloadable from the OCA Alliance website at no charge, and on commercially appropriate licensing terms.

Click on the image to the left to view and download.

OCA-vision-business-version-V7
The Vision

OCA is an architecture for connection management and control of media devices over digital networks.  It defines a common remote control and discovery language that allows devices from different manufacturers to exchange and respond to device control and audio stream connection information to create interoperability between these devices. OCA is a license-free core technology for network media systems.

Click on the image to the left to view and download.

Categories
Resources

Standards & Specifications

AES70 Framework
Also known as OCF, this specification describes the overall architecture of AES70 and describes its mechanisms. OCF is published as this AES document (click button to go to the AES download page):

AES70 Class Structure
Also known as OCC, this specification describes the object-oriented class structure that defines the functional repertoire (connection management, control, and monitoring) of AES70.  OCC is published as this AES document (click button to go to the AES download page):

Also download Annex A in either of two forms (see below for explanation):

AES70 Protocols
Also known as OCP.1, OCP.2, etcetera, these specifications describe protocols that implement OCA control over various types of networks. In AES70-2015, only one protocol — OCP.1 — is defined. It is for TCP/IP networks. Future updates to the standard will define additional protocols. OCP.1 is published as this AES document (click to go to the AES download page):

Also download Annex B in either of two forms (see below for explanation):

Annex UML format
The two annexes listed above are Universal Modeling Language (UML) specifications.  AES70-2 Annex A is particularly important, as it contains the entire specification of the AES70 Class Structure. The UML files are in two forms:
  • The *.eap files are master files from a UML tool named Enterprise Architect from Sparx Systems. The usual version of the tool costs US$240, but Sparx Systems offers a free viewer, download link here.  There is also a 30-day free trial version of the full package — see the download page here.
  • The *.xmi files are master files in XMI 2.1, a standard format for representation of UML information. XMI stands for “XML Metadata Interchange”.  XMI files can be opened by most UML editors, including free ones. See this Wikipedia article for more information.
The AES70 Object Model
This guide has been created by Jeff Berryman, the AES Standards Vice-Chair, as a learning resource for developers or manufacturers interested in implementing AES70 or wishing to understand it to an advanced level.

OCA Microdemo

The OCA Microdemo is a demonstration product developed by OCA Alliance members. Its primary purpose is to prove that AES70 can run well in lightweight hardware environments.  The Microdemo meets minimum requirements for AES70 compliance, and provides a small set of OCA-controlled application functions as well.

The custom software, finished schematic diagrams, and PC board layouts, for the MicroDemo are publicly available at no charge, on commercially appropriate licensing terms. Please review the OCA Alliance End User License Agreement (EULA) prior to downloading and using these tools.

js javascript library

oca.js is a javascript library that supports OCA.  It can be used for building web-based OCA device controllers.  It’s an open-source component developed by OCA Alliance member deusO (aka DeutscheSoft), and is available via GitHub here:

AES70 in the AES Journal

Comprehensive description of OCA features and mechanisms.

Working Group on Audio Applications of Networks

The AES standards working group responsible for AES70.

Anyone can participate in this group; AES membership is not needed.
A membership application form is here, or you can just attend a meeting at an AES Convention to join.

 

AES SC-02-12-L

Within SC-02-12, the specific task group responsible for AES70 is SC-02-12-L

The AES working group responsible for AES70.

Anyone can participate in this group; AES membership is not needed.


A membership application form is here, or you can just attend a meeting at an AES Convention to join.

The OCA Alliance is a not-for-profit corporation formed to promote and support the AES70 standard for Open Control Architecture (OCA) as a media networking system control standard for professional applications.

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