1. SOI Asia Realtime class Shoko Mikawa (funya) funya@sfc.wide.ad.jp SOI Asia E-Global Operators Workshop 2006 Summer August 22 nd – 26 th, 2006

2. SOI Asia E-Global Operators Workshop 2006 Summer 2 Realtime Class Components Lecture Video & Audio PowerPoint synchronization Staff Communication

3. SOI Asia E-Global Operators Workshop 2006 Summer 3 Lecture Video & Audio Gateway Site at SFC UDL Link AI3 Network Partnet#1Partner#2 P2 A/V stream Lecturer Site Lecturer A/V stream P1 A/V stream Lecturer A/V stream

4. SOI Asia E-Global Operators Workshop 2006 Summer 4 Gateway Site at SFC UDL Link AI3 Network Partnet#1Partner#2 Lecturer Site PPT Slide Number PowerPoint Synchronization PPT

5. SOI Asia E-Global Operators Workshop 2006 Summer 5 Staff Communication Gateway Site at SFC UDL Link AI3 Network Partnet#1Partner#2 Lecturer Site

6. SOI Asia E-Global Operators Workshop 2006 Summer 6 Classroom Example

7. SOI Asia E-Global Operators Workshop 2006 Summer 7 Realtime class system (1) Video/Audio System (2) PPT Synchronization (3) Staff communication

8. SOI Asia E-Global Operators Workshop 2006 Summer 8 2 realtime applications VIC/RAT –Receive lecture stream –Send classroom stream –Interactive session –Multi-parties, many senders and many receivers Window Media –Receive lecture stream only –Non-interactive session –One sender and many receivers

9. SOI Asia E-Global Operators Workshop 2006 Summer 9 Realtime Class (VIC/RAT) Gateway Site at SFC UDL Link AI3 Network Partnet#1Partner#2 Lecturer Site Lecturer A/V stream P1 A/V stream Lecturer A/V stream

10. SOI Asia E-Global Operators Workshop 2006 Summer 10 VIC/RAT VIC for send/receive Video RAT for send/receive Audio

11. SOI Asia E-Global Operators Workshop 2006 Summer 11 VIC/RAT model Peer to Peer relationship Every node is equal Every node can receive/send to same multicast address

12. SOI Asia E-Global Operators Workshop 2006 Summer 12 VIC/RAT Multicast Channel VIC/RAT machine VIC/RAT machine VIC/RAT machine VIC/RAT machine

13. SOI Asia E-Global Operators Workshop 2006 Summer 13 Real time class (Windows Media) Gateway Site at SFC UDL Link AI3 Network Partnet#1Partner#2 Lecturer Site Lecturer A/V stream

14. SOI Asia E-Global Operators Workshop 2006 Summer 14 Window Media model Sender-receiver relationship Sender sends to one multicast address (but not receive) Receiver joins to that multicast address (but not send)

15. SOI Asia E-Global Operators Workshop 2006 Summer 15 Window Media Window media sender at Japan Partners can receive only

16. SOI Asia E-Global Operators Workshop 2006 Summer 16 Window media Window media players Window media sender Multicast Channel

17. SOI Asia E-Global Operators Workshop 2006 Summer 17 Video/Audio Lab work STEP1 : IPv6 Installation & Firewall Disable From ow-realtimeclass_lab.pdf, do STEP 1 Windows XP SP1 or higher 10 min.

18. SOI Asia E-Global Operators Workshop 2006 Summer 18 Video/Audio Lab work STEP2 : VIC/RAT installation From ow-realtimeclass_lab.pdf, do STEP 2 Install/Receive VIC/RAT with your PC TA demonstrates to send VIC/RAT –Your PC doesn ’ t have Camera 25 min.

19. SOI Asia E-Global Operators Workshop 2006 Summer 19 VIC All parties send/receive to same multicast address/port SOI Asia VIC address/port –IPv4 233.18.109.3 port 6666 –IPv6 ff38:20:2001:d30:101:2:1:3 port 3333 Application specifies port –#vic 233.18.109.3/6666 –#vic ff38:20:2001:d30:101:2:1:3/3333

20. SOI Asia E-Global Operators Workshop 2006 Summer 20 RAT All parties send/receive to same multicast address/port SOI Asia RAT address/port –IPv4 233.18.109.7 port 7777 –IPv6 ff38:20:2001:d30:101:2:1:4 port 4444 Application specifies port –#rat 233.18.109.4/7777 –#rat ff38:20:2001:d30:101:2:1:4/4444

21. SOI Asia E-Global Operators Workshop 2006 Summer 21 Video/Audio Lab work STEP3 : WMP installation From ow-realtimeclass_lab.pdf, do STEP 3 Install/Receive WMP with your PC 15 mins

22. SOI Asia E-Global Operators Workshop 2006 Summer 22 Window Media Sender sends to a multicast address Sender generates announcement files(.asx,.nsc) contains multicast information Client machine downloads that (.asx,.nsc) files to machine Use window media player to open.asx Window media player will join stream

23. SOI Asia E-Global Operators Workshop 2006 Summer 23 Window media announcement file http://www.soi.wide.ad.jp/soi-asia/wmt/ 1. IPv6 Test Program 2. IPv6 Realtime Lecture Stream 3. IPv4 Test Program 4. IPv4 Realtime Lecture Stream

24. SOI Asia E-Global Operators Workshop 2006 Summer 24 Realtime class system (1) Video/Audio System (2) PPT Synchronization (3) Staff communication

25. SOI Asia E-Global Operators Workshop 2006 Summer 25 IRC (Internet Relay Chat) IRC server Connect to serverSpecify talk channel # soi-asia channel # sport channel Chatting

26. SOI Asia E-Global Operators Workshop 2006 Summer 26 Real time class : IRC AI3 network Partner#1 Partner#2 IRC server Staff machine SFC lecture studio

27. SOI Asia E-Global Operators Workshop 2006 Summer 27 Step 4: mIRC TA will show you the demonstration Install MIRC program Connect to talk to each others 15 min.

28. SOI Asia E-Global Operators Workshop 2006 Summer 28 Realtime class system (1) Video/Audio System (2) PPT Synchronization (3) Staff communication

29. SOI Asia E-Global Operators Workshop 2006 Summer 29 RPT Remote PowerPoint Tool Slide synchronization from lecturer to partners Use IRC to communicate (but different channel to staff talking channel)

30. SOI Asia E-Global Operators Workshop 2006 Summer 30 Realtime Class Components (2) UDL Link AI3 network Partner#1Partner#2 Lecturer site PPT slide page number PPT IRC server RPT machine SFC lecture studio PPT

31. SOI Asia E-Global Operators Workshop 2006 Summer 31 Step 5: RPT TA will show you the demonstration Every sites join to RPT, lecturer will move slide 15 min.

32. SOI Asia E-Global Operators Workshop 2006 Summer 32 Equipments for realtime lecture VIC/RAT, WMT machine –Video camera, Microphone, Speaker –(Mixer/Echo canceller) RPT machine IRC machine 2 projecting boards/projectors 1 staff

33. SOI Asia E-Global Operators Workshop 2006 Summer 33 Partner classroom students IRC Machine VIC/RAT Machine RPT Machine Staff

34. SOI Asia E-Global Operators Workshop 2006 Summer 34 Lecture Procedure 1. New Course Announcement 2. Course Enrollment - optional 3. Lecture Announcement (1 day before) 4. Lecture Material Announcement 5. Lecture Preparation (30 min. before ) 6. Operating Realtime Lecture session 7. Operating Q/A session VIC/RAT, BBS 8. Lecture report

35. SOI Asia E-Global Operators Workshop 2006 Summer 35 Troubleshoot VIC/RAT, WMT –System problem Ipv6 install, window firewall –Connectivity problem Check Multicast v6, Unicast v4 & v6 –Quality problem Japan -> your site – report through irc Your site -> Japan, others –Check the sending rate of VIC/RAT –Audio traffic (RAT) is more important than Video Other sites -> your site – report through irc

36. SOI Asia E-Global Operators Workshop 2006 Summer 36 IRC, RPT, others –Connectivity problem Unicast v4 to IRC server –Slide doesn ’ t change (first time) Check if you are in and correct IRC channel –Slide doesn ’ t change (after sometime) May be disconnected from IRC Reconnect

37. SOI Asia E-Global Operators Workshop 2006 Summer 37 Trying to JOIN but not yet success

38. SOI Asia E-Global Operators Workshop 2006 Summer 38 Connected, RPT will work after this

39. SOI Asia E-Global Operators Workshop 2006 Summer 39 Click to reconnect

40. SOI Asia E-Global Operators Workshop 2006 Summer 40 SOI Asia A/V setting Better Audio Quality Prevent Echo

41. SOI Asia E-Global Operators Workshop 2006 Summer 41 Echo Loop A B RAT

42. SOI Asia E-Global Operators Workshop 2006 Summer 42 Echo Loop Always TURN OFF your microphone when you are not talking Do not select talk on RAT if not talking Cannot avoid during Q/A

43. SOI Asia E-Global Operators Workshop 2006 Summer 43 Echo loop A B RAT A B+A Should be deducted Using echo canceller

44. SOI Asia E-Global Operators Workshop 2006 Summer 44 SOI Asia A/V set Echo Canceller –To reduce the echo Mixer –To control the audio level

45. SOI Asia E-Global Operators Workshop 2006 Summer 45 Echo canceller 2 inputs –Local sound (Voice from Microphone+Remote Sound fed to the microphone) –Remote sound (Output from RAT) –Compare and deduct repeated sound 2 outputs –Local sound (Only voice from Microphone) –Remote sound (Output from RAT)

46. SOI Asia E-Global Operators Workshop 2006 Summer 46 Mixer Sound Redirection Better Audio Quality

47. SOI Asia E-Global Operators Workshop 2006 Summer 47 Echo canceller VIC/RAT PC OUT2 LINE IN （ MINI) MAIN OUT(LR) Speaker Microphone IN1 LINE OUT （ MINI) IN1 OUT1IN2 FX SEND PHONE IN2

48. SOI Asia E-Global Operators Workshop 2006 Summer 48 GAIN (Control the MIC volume) EQUALIZER (To control audio effect) FX (Volume to FX Send) PAN (To control LR) LEVEL (Volume to speaker) PHONES (Volume to Headset) MAIN MIX (Volume to Speaker)

49. SOI Asia E-Global Operators Workshop 2006 Summer 49

50. Thank you!!