Virtual Briefings Technical Update

Jon Zeeff, JT July 2002 V1.1

jzeeff@internet2.edu

Slides with notes:

http://www.internet2.edu/~jzeeff/presentations/

Monthly updates on Internet2 related activities

•Provide a testbed for using and debugging new collaboration technologies

•Demonstrate and promote the widespread use of new collaboration technologies

•Provide a platform to deliver interactive briefings of Internet2-related activities

Equipment

•Accord and Radvision MCUs at OSU

•Polycoms

•H.323 at 768K bps, H.263

•Real and Windows streaming (unicast)

•MPEG 1 and 2 (multicast)

•DVTS (30 Mbits)

•Audio/Video switcher for wiring flexibility and repeatability

Procedures

•End point testing

•PowerPoint on web site

•Watch for open mics – mute with MCU

•MCU control directly

•Video lighting

•Close mic-ing

Accord MCU Control Software

Lighting

Test Tools

Color bars

Vectorscope

True RTA (freq and latency)

Audio and video level meters

Metronome (A/V sync)

Challenges

Last mile connectivity (overprovision or QOS)

Better quality video

Production control

Titling

Reliable H.323 equipment

Redundancy (eg, telco backup for audio)

Future

•Multi-protocol MCU

•Video switching and mix minus audio

•Titler

•Video answering machine

•A/V sync measurement & delay

More Future

•Automated system for conferencing and netcasting

•Packet doubler

•Security

•Scheduling & Queueing

•Apps sharing (Powerpoint)

Misc

Thanks to OSU staff and end point testers

Problems: http://www.internet2.edu/

activities/html/lessonslearned.html

Presentation: http://www.internet2.edu/

~jzeeff/presentations/

Email: jzeeff@internet2.edu