About Software Defined Media WG


The target of a professional audio system includes 1) PA/SR systems for Live sound, 2) Production systems for Broadcasting, Music or Cinema or 3) BGM or Paging system. The signals need to be transferred among the above systems in uncompressed data format. For example, it requires 148Mbps for payload bandwidth in the case of transmitting 128 channels with 48kHz and 24bits. In order to fulfill the requirements of precise time synchronization and low latency, analog line has been used for a long time. However recently, IP network is replacing the analog line of the audio systems thanks to the deployment of 1Gbps IP networks.

From the background, the notion of Software Defined Media (SDM) is born. SDM is an architectural approach to audio as a service by virtualization and abstraction of networked audio-visual infrastructure. SDM allows operators to manage audio-visual services through abstraction of lower level functionality. This is done by decoupling the software that makes decisions about how to render the audio-visual service from the underlying infrastructure that inputs and outputs the sound. Thanks to the decoupling, the system can configure flexible and intelligent audio-visual service in order to match a program played on the stage and the direction of the play.

News


Next Events

2016/08/29 WG meeting will be held in the University of Tokyo.

News

2015/08/26 Minamo Takahashi (BANDAI NAMCO Studios Inc.) presented 3D audio in the WG at CEDEC 2016
2016/07/29-30 SDM workshop and ideathon were held in the University of Tokyo.
2016/07/21 We announce about flexible audio-visual database for recorded concert data, which will be published as Audio Engineering Society Convention Paper in September (in Japanese). News
2016/03/31 Keiko Ogawa (KMD:Graduate School of Media Design, Keio)was awarded a honor of "Dean's List" upon completion of Master's Degree. Thesis Link
2016/02/16 SDM activities in 2015 is published as WIDE Report (in Japanese).Please mail for the report. Mail
2016/01/10 We recorded the concert of Department of Musicology, Keio University.
2015/12/12-13 We provided 3D audio management system using SDM in the Smartlife hackathon.
2015/11/05 We displayed the SDM demonstration in IETF 94 @Yokohama Bits-N-Bites.
2015/10/17-18 Smartlife hackathon for organizers and developers was held in the University of Tokyo.
2015/08/26 Takashi Kasuya (Takenaka corp.) presented the activities in Smartlife hackathon at CEDEC 2015
2015/07/18-19 We provided 3D audio management system using SDM in the Smartlife hackathon.
2015/06/10-12 We displayed the SDM demonstration in Interop Tokyo 2015.
2015/05/14 Prof. Esaki introduced the SDM activities in the 23th Broadband Symposium.
2015/03/13 We displayed the SDM demonstration at Shinshu-Matsushiro Royal Hotel in Nagano.
2015/01/22 SDM activities in 2014 is published as WIDE Report (in Japanese). Report
2015/01/14 Dr. Tsukada introduced the SDM activities in the IIJ seminar.
2014/01/22 Kick-off meeting was held in the University of Tokyo and SDM WG was launched in the WIDE project.

People


Name Affiliation
Hiroshi Esaki (Chair) Graduate School of Information Science and Technology, The University of Tokyo
Manabu Tsukada (Chair) Graduate School of Information Science and Technology, The University of Tokyo,
Others, 45 persons in total
UTokyo
Kieo
Yamaha
Dolby
NTT
KDDI
Panasonic
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