podcasting everything
DESCRIPTION
Apple WWDC 08: Podcasting EverythingTRANSCRIPT
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Andy WasklewiczTechnology Architect
Podcasting EverythingStanford School of Medicine
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• 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
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Classroom Capture Details
• Downloadable video! Courses
! Grand rounds
! Special educational events
• 8000 events/year in educational spaces
• 2500 hours/year of classroom capture content
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New Educational Facility
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Students
• Level of expectation
• Students demanding multiple formats
• Requesting video anywhere, anytime
• 85% of students own laptop
• 83% own portable media device
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“Why limit the capture system to classroom content, let’s open it to the entire school.”
SoM Administration
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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
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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
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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
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Sample Output
Course MedCast
Documentary Procedures
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Estimated Output
• Currently average 25 podcasts a week
• Expectation of more than doubling output in 2009-2010
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Workflows
• iTunesU! Public
! Private
! Community
• Youtube
• SoM Web Portal
• Learning Management Systems
• Internal portals
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Unique deployments
• LKSC master control rooms
• Simulation centers
• Inter campus sharing
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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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