AES San Francisco 2012
Network Audio Session Details
Friday, October 26, 4:00 pm — 6:00 pm (Room 123)
N1 - Error-Tolerant Audio Coding
Chair:David Trainor, CSR - Belfast, Northern Ireland, UK
Panelists:
Bernhard Grill, Fraunhofer IIS - Erlangen, Germany
Deepen Sinha, ATC Labs - Newark, NJ, USA
Gary Spittle, Dolby Laboratories - San Francisco, CA, USA
Abstract:
Two important and observable trends are the increasing delivery of real-time audio services over the Internet or cellular network and also the implementation of audio networking throughout a residence, office or studio using wireless technologies. This approach to distributing audio content is convenient, ubiquitous, and can be relatively inexpensive. However the nature of these networks is such that their capacity and reliability for real-time audio streaming can vary considerably with time and environment. Therefore error-tolerant audio coding techniques have an important role to play in maintaining audio quality for relevant applications. This workshop will discuss the capabilities of error-tolerant audio coding algorithms and recent advances in the state of the art.
Saturday, October 27, 2:00 pm — 3:30 pm (Room 123)
N2 - Open IP Protocols for Audio Networking
Presenter:Kevin Gross, AVA Networks - Boulder, CO, USA
Abstract:
The networking and telecommunication industry has its own set of network protocols for carriage of audio and video over IP networks. These protocols have been widely deployed for telephony and teleconferencing applications, internet streaming, and cable television. This tutorial will acquaint attendees with these protocols and their capabilities and limitations. The relationship to AVB protocols will be discussed.
Specifically, attendees will learn about Internet protocol (IP), voice over IP (VoIP), IP television (IPTV), HTTP streaming, real-time transport protocol (RTP), real-time transport control protocol (RTCP), real-time streaming protocol (RTSP), session initiation protocol (SIP), session description protocol (SDP), Bonjour, session announcement protocol (SAP), differentiated services (DiffServ), and IEEE 1588 precision time protocol (PTP)
An overview of AES standards work, X192, adapting these protocols to high-performance audio applications will be given.
Saturday, October 27, 4:00 pm — 6:00 pm (Room 123)
N3 - Audio Networks—Paradigm Shift for Broadcasters
Chair:Stefan Ledergerber, Lawo Group - Zurich, Switzerland; LES Switzerland GmbH
Panelists:
Kevin Gross, AVA Networks - Boulder, CO, USA
Andreas Hildebrand, ALC NetworX - Munich, Germany
Sonja Langhans, Institut für Rundfunktechnik - Munich, Germany
Lee Minich, Lab X Technologies - Rochester, NY, USA
Greg Shay, Telos Alliance/Axia - Cleveland, OH, USA
Kieran Walsh, Audinate Pty. Ltd. - Ultimo, NSW, Australia
Abstract:
Today a variety of audio networking technologies are emerging. However, a number of questions related to workflow in broadcasting organizations seem still unanswered. This panel will try to find possible answers to some of the hot topics, such as:
• Will traditional crosspoint matrix switches (routers) disappear and fully be replaced by networks?
• Which component will deal with signal processing, which is currently done within audio routers?
• Which department is handling audio networks: audio or IT?
• How do we educate personnel handling audio networks?
The panelists will explain their views from a technology provider point of view, but lively participation by the audience is highly appreciated.
Sunday, October 28, 9:00 am — 10:30 am (Room 123)
N4 - AVnu – The Unified AV Network: Overview and Panel Discussion
Chair:Rob Silfvast, Avid - Mountain View, CA, USA
Panelists:
Ellen Juhlin, Meyer Sound - Berkeley, CA, USA; AVnu Alliance
Denis Labrecque, Analog Devices - San Jose, CA, USA
Lee Minich, Lab X Technologies - Rochester, NY, USA
Bill Murphy, Extreme Networks
Michael Johas Teener, Broadcom - Santa Cruz, CA, USA
Abstract:
This session will provide an overview of the AVnu Alliance, a consortium of audio and video product makers and core technology companies committed to delivering an interoperable open standard for audio/video networked connectivity built upon IEEE Audio Video Bridging standards. AVnu offers a logo-testing program that allows products to become certified for interoperability, much like the Wi-Fi Alliance provides for the IEEE 802.11 family of standards. Representatives from several different member companies will speak in this panel discussion and provide insights about AVB technology and participation in the AVnu Alliance.
Sunday, October 28, 11:00 am — 12:30 pm (Room 123)
N5 - Interoperability Issues in Audio Transport over IP-Based Networks
Chair:Timothy Shuttleworth, Oceanside, CA, USA
Panelists:
Kevin Gross, AVA Networks - Boulder, CO, USA
Sonja Langhans, Institut für Rundfunktechnik - Munich, Germany
Lee Minich, Lab X Technologies - Rochester, NY, USA
Greg Shay, Telos Alliance/Axia - Cleveland, OH, USA
Abstract:
This Workshop will focus on interoperability issues in two areas of audio/media transport over IP based networks. These are:
• Multichannel Audio distribution over Ethernet LANs for low latency, high reliability interconnections in home, automobile, and commercial environments. Interoperability standards and methods based on the Ethernet AVB suite of IEEE standards as well as the AES X-192 interoperability project shall be discussed.
• Audio Contribution over Internet Protocol (ACIP and ACIP2) interoperability issues will be discussed from both a European and US perspective with presenters discussing activities within the EBU community and the US broadcasting market. Audio over IP methods are being widely used in remote broadcast situations. The challenges and solutions in achieving reliable content distribution shall be examined.
Cross-vendor operability is becoming increasingly demanded in all audio applications markets. This topic will be of interest to audio systems designers and users across the gamut of market segments. Two presenters will provide their overview within each of the three topic areas.
Sunday, October 28, 2:00 pm — 3:00 pm (Room 133)
N6 - High Performance over IP
Presenter:Rupert Brun, BBC Audio & Music - London, UK
Abstract:
In the summer of 2010 Brun conducted a simple experiment, making one week of classical music concerts available on-line in high quality and with wide dynamic range. He will explain how he used Twitter and a blog to get real time feedback from the audience and the overwhelming response from the public and press to this simple idea. In the autumn of 2010 it was decided that we would make the “HD Sound” feed permanently available and eventually made it the default for delivery of classical music over IP. This session will explore the future for delivery of audio to the audience over IP and some of the opportunities it presents, while acknowledging why it is seen as a threat to traditional broadcast.
Details of the experiment can be found here:
http://www.bbc.co.uk/blogs/bbcinternet/2010/09/bbc_proms_extra_high_quality_audio.html
Sunday, October 28, 3:00 pm — 4:30 pm (Room 123)
N7 - Audio Network Device Connection and Control
Chair:Richard Foss, Rhodes University - Grahamstown, Eastern Cape, South Africa
Panelists:
Jeffrey Alan Berryman, Bosch Communications - Flesherton, ON, Canada
Andreas Hildebrand, ALC NetworX - Munich, Germany
Jeff Koftinoff, Meyer Sound Canada - Vernon, BC, Canada
Kieran Walsh, Audinate Pty. Ltd. - Ultimo, NSW, Australia
Abstract:
In this session a number of industry experts will describe and demonstrate how they have enabled the discovery of audio devices on local area networks, their subsequent connection management, and also control over their various parameters. The workshop will start with a panel discussion that introduces issues related to streaming audio, such as bandwidth management and synchronization, as well as protocols that enable connection management and control. The panelists will have demonstrations of their particular audio network solutions. They will describe these solutions as part of the panel discussion, and will provide closer demonstrations following the panel discussion.
Sunday, October 28, 4:30 pm — 6:00 pm (Foyer)
N8 - Audio Network Device Connection and Control—Demos
Chair:Richard Foss, Rhodes University - Grahamstown, Eastern Cape, South Africa
Panelists:
Jeffrey Alan Berryman, Bosch Communications - Flesherton, ON, Canada
Andreas Hildebrand, ALC NetworX - Munich, Germany
Jeff Koftinoff, Meyer Sound Canada - Vernon, BC, Canada
Kieran Walsh, Audinate Pty. Ltd. - Ultimo, NSW, Australia
Abstract:
In this session a number of industry experts will describe and demonstrate how they have enabled the discovery of audio devices on local area networks, their subsequent connection management, and also control over their various parameters. The workshop will start with a panel discussion that introduces issues related to streaming audio, such as bandwidth management and synchronization, as well as protocols that enable connection management and control. The panellists will have demonstrations of their particular audio network solutions. They will describe these solutions as part of the panel discussion, and will provide closer demonstrations following the panel discussion.
