At the convention center, a movie will be placed here These are confidential sessions—please refrain from filming or taking pictures. Session 000 Presentation Title Is 64 pt. Optional subtitles are gray, 42 pt.
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At the convention center, a movie will be placed here
These are confidential sessions—please refrain from filming or taking pictures.
Session 000
Presentation Title Is 64 pt.Optional subtitles are gray, 42 pt.
At the convention center, a movie will be placed here
These are confidential sessions—please refrain from filming or taking pictures.
Session 000
Presentation Title Is 64 pt.Optional subtitles are gray, 42 pt.
Andy WasklewiczTechnology Architect
Podcasting EverythingStanford School of Medicine
• 1970’s - Captured on 3/4 inch tape • 1980’s - Capture on VHS• 1988 - Streaming video via Real• 2007 - REAL downloadable• 2008 - Podcast Producer/Episode Engine prototype
SoM History of Classroom Capture
Classroom Capture Details• Downloadable video
■ Courses■ Grand rounds■ Special educational events
• 8000 events/year in educational spaces• 2500 hours/year of classroom capture content
New Educational Facility
Students• Level of expectation• Students demanding multiple formats• Requesting video anywhere, anytime• 85% of students own laptop• 83% own portable media device
“Why limit the capture system to classroom content, let’s open it to the entire school.”
SoM Administration
Requirements• Must serve current and future facilities• Classroom capture materials must be on line by 5pm each day• Flexibility for production, programming and IT staffs to extend
and integrate into current infrastructure• System capable of producing both standards based and
proprietary formats• Integration with Learning Management Systems and classroom
scheduling
Prototype System
Podcast Producer Episode Engine
Publish
File Server
Shared Storage
/Xgrid Cluster
Primary Master
Failover
iTunesU
Youtube
Primary Master
Failover
Media Asset Management
Metadata
Failover
Encoding Benchmarks
Source Output Time
XGrid
Episode Engine
56 minute class12.3 GB DV file640x48030 fps
640x480 m4v480x320 m4v176x144 3gp
2 hours 37 minutes
56 minute class12.3 GB DV file640x48030 fps
640x480 m4v480x320 m4v176x144 3gpm4a Audio
6 minute 30 seconds
Encoding/Storage Hardware:(4) 8 Core XServes8 GB RAM per4 GB Fiber Cards4.8 TB SAS Promise RAID
Sample Output
Course MedCast
Documentary Procedures
Estimated Output• Currently average 25 podcasts a week• Expectation of more than doubling output in 2009-2010
Workflows• iTunesU
■ Public■ Private■ Community
• Youtube• SoM Web Portal• Learning Management Systems• Internal portals
Unique deployments• LKSC master control rooms• Simulation centers• Inter campus sharing
Next Steps• Finalize Telestream Episode Engine integration• Final Cut Server for intermediate archive• Control/switching systems integration• Explore integration of screen capture tools (i.e. Screenflow)• Berkeley Opencast systems
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