Transcript No Slide Title - Indian Institute of Science

Instruction On Demand
(A Remote Seminar Application)
Development Team
S.V.R. Anand
M.N. Kishore
V.K.K. Krishna Kanth
Guides
Prof. Kumar N. Sivarajan
Prof. Anurag Kumar
Developed under the DoE sponsored ERNET Project
at the ECE Department Indian Institute of Science, Bangalore
Lecture Server
(Mcast Address, Slides, Lectures)
Participant (Delhi)
Participant (Chennai)
Internet
Participant (Bombay)
Speaker (Bangalore)
IOD Features
• Realtime interactive seminars
• Seminar Manager : Allows on-the-fly
composing of lectures for later playback
• Lecture server for realtime streaming of the
stored lectures
Realtime Seminars
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Synchronized Audio, slides, and annotations
Speaker controlled interactive environment
On-line recording (for speaker only)
White board feature for live addition of text
and sketches
• Uses IP Multicast for bandwidth
conservation
IOD:Supported Media
• Audio
– 8Bit, or 16Bit PCM samples at
8000samples/sec
– 13Kbps GSM Audio compression
• Slide/Document
– PostScript, PowerPoint, PDF
– Word document support planned
• Annotations
– Pointer, Rectangle, Ellipse/circle, Lines
• Low bit rate video with IITM
IOD: Interactivity
• Interactivity completely controlled by
speaker
• Full duplex interactivity between speaker
and any one participant
– Audible/Visible to everyone
• Request and grant mechanism
• Interaction through queuing
IOD: Seminar manager for seminar
composition
• Offline recording with audio, slides, and annotations
– No need for any studio environment
• Editing of the recorded lectures
• Synchronization between media streams (audio, slides, and
annotations) during playback
• Fast forward and rewind during playback with
synchronization preserved
• Playback mechanisms
– Local hard disk or cdrom
– Streaming of lectures in the browser environment
– Multicast on the network
IOD:Status
• It is in the product form. Installable package
available at http://ece.iisc.ernet.in/iod/
• Tested between IITM and IISc. It worked!
• Live Recordings of the lectures of the
Internet workshop are available on the web.
• Offline recording of couple of lectures
related to the Internet available
• Live Recording, and multicasting of the
ongoing semester course on “Internet
Technologies”
Let us proceed to see how it works!