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AI 3 meeting(Work Shop) Noriatsu kudo

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Presentation on theme: "AI 3 meeting(Work Shop) Noriatsu kudo"— Presentation transcript:

1 AI 3 meeting(Work Shop) Noriatsu kudo

2 Today s agenda SOI ASIA class style Applications for real time class Audio Video settings in class room

3 Overview of SOI ASIA Project SOI Contents Mirroring Giving Lectures from sites with wide network Asian Partner Sites SOI Mirror Server LAN Gateway Site (SFC) The Internet Participating in the lectures at the Partner Institutions Relaying lectures through SFC to all asian partners using multicast and satellite Giving Lectures from sites any place on the Internet (Japan, US and so on) Learn through partners local mirror server

4 SOI ASIA class style 60minutes lecture 30minutes Q&A Windows Media BBS VIC/RAT/(polycom) 5minutes break IRC/RPT

5 Lecture Components Video WMT VIC/RAT Material PowerPoint PDF Staff communication IRC recommended MSN messenger Yahoo messenger materialvideo

6 Break Change codec from WMT to VIC/RAT Collect questions from student For Interactive Tell staff about it via IRC For non interactive Submit questions to BBS Tape change(SFC ONLY)

7 Q&A Three ways to ask question Audio and Video (interactive) BBS IRC/MSN(not recommended)

8 Applications for real time class Windows Media Player VIC/RAT RPT Polycom IRC

9 Windows Media version 8 and 9 is recommended Advantage Multicast ready Stable streaming with "un-stable-" or "non-" return path. Disadvantage Delay(30-60seconds) Windows only Future work IPv6 support Bandwidth 500kbps(audio+video) WMT encoder wmt server client Multicast stream 500kbsp Video & Audio 500kbps

10 VIC/RAT To send and receive video and audio Advantage No delay FreeBSD,Linux,solalis support Multicast ready IPv6 support Disadvantage Require return path Bandwidth 1.5Mbps(video) 512kbps(audio) Vic/rat encoder client Video & Audio 1.5M video 512k audio 64kbps-128kbps

11 RPT Power Point remote control tool Functions Send and receive timing info via IRC Record timing info for archive Advantage Doesn t need multicast Disadvantage Require IRC connection client IRC network

12 polycom Polycom s View station series Advantage Built-in echo canceller All in one system Multipoint support(up to 4 site) Disadvantage Doesn t support multicast Doesn t support asymmetric link Bandwidth 64kpps-3Mbps For multipoint 512kbps is maximum 64k-512kbps

13 AV equipments for class room Microphone Audio mixer Echo canceller DV camera Speaker etc

14 Standard AV layout for remote classrooms Audio mixer Vic/rat Echo canceller (1) (2)(3) (4)(5) (2)(3)(4)(5) (6) (7) (8) speaker Power amp Class room PA system or Speaker + power amp (9) (10)(11) (10)(11) Class room PA system or microphone Ver1.0 6/3 by Noriatsu Kudo Video camera projector

15 Audio mixer Control all of audio equipments Requirements At least 2 mic input/2 Line input At least 2-bus Recommendation Behringer MX1604A Behringer UB1204FX-PRO

16 Echo Canceller(1) Power Amplifier Acoustic echo interne t

17 Echo Canceller(2) Power Amplifier Acoustic echo interne t line echo

18 Echo canceller(3) Acoustic echo canceller recommendation Behringer DSP 1124p Feedback destroyer pro Polycom EF400 Polycom EF2280 line echo canceller)

19 Other equipments DV camera 8mm,VHS is OK Microphone Wireless or wired Speaker and power amp

20 Q&A Any questions?

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