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Broadcasting video

Broadcasting video






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    Broadcasting video Broadcasting video Presentation Transcript

    • B ro adcasting Vide o the We o n b Lawrence M. Hinman University of San Diego hinman@acusd.edu http://ethics.acusd.edu/Belmont/
    • I ntro ctio du ns The Changing Nature of Computings What it looks likes Why it is worthwhiles How to do its Ethics Updatess Broadcasting animations
    • What I t L oks L ike os Gilligan examples RealVideo streaming video usually requires at least a 56K connection.s One can decide how much bandwidth is devoted to video and how much is allocated to audio. – Recommendation: Devote more bandwidth to audio, less to video.
    • Why B ro adcast Vide I s o Wo hile rthw : L iv B ro e adcastss Allows virtual observers and eventually virtual participants at conferences. – Allows many to attend who otherwise would have been unable to do so. – Programs: • RealVideo: Broadcast only • NetShow Broadcast only • NetMeeting Interactive, limited multipoint
    • Why B ro adcast Vide I s o Wo hile rthw : A rchiv Vide al os For readers, it is often helpful to associate a face and a voice with an author that they are reading.s Instructors can assign video or audio just as they would assign reading assignmentss Good conference interactions are not lost forever.
    • H o to do it ws Obtain permissionss Record events Captures Encode recordings Place encoded file on servers Stream videoRecord Capture Encode Upload Stream
    • Obtain pe issio rm nss Even if you hold an existing permission, obtain an additional one for the web.s Permissions should be non-exclusive, allowing lecturers to use material elsewhere.
    • R e rd e e co v nts Recording events simply requires standard videotaping – The better the quality of the recording, the better the web-based result – Use super-VHS if possibles High quality digital recording is even more flexibles Always pay attention to sound quality
    • Capturings The event needs to be captured on the computer before it can be encoded. – Audio: only requirement is a sound card – Video: also need a video capture card • Windows: Osprey 100--cheap, reliable, Win95 & NT compatible, and recognized by RealPublisher. $129.00
    • Enco re rding de cos You can begin with video or audio recordings not originally intended for the Web.s Use RealPublisher. It’s cheap and it will: – capture (live or from tape or file); – encode (using convenient templates); – publish as html.
    • Place e de file o se e nco d n rv rs In the past, you had to use a RealServer to have streaming audio and video. – Any server will deliver RealVideo and RealAudio that can be downloaded first and then player. – New versions--including the G2--now stream without RealServer; .s Both RealPlayer and basic RealServer are free. – Note: RealServer cannot be used free of charge to broadcast courses.
    • S tre v o am ides Basic, free RealServer will stream video to 40 connections simultaneously.s Viewers only need the free version of RealPlayer and a reasonably good internet connection (56K) to view the video.
    • Ethics U pdatess Live Broadcast: – CSU Fullerton, “Democracy and Self- Interest” conferences Current archived video: – Carol Gilligan, lecture and workshop on gender and ethics – Tu Weiming, lecture on Confucian ethics – Nancy Sherman, lecture on Aristotle and leadership
    • Ethics U pdatess Current audio: – Phillip Hallie: “Maculate Goodness” – Jean Hampton et al., “Rottenness” – Susan Wolf, Bob Adams, et al. On “Moral Saints”s Upcoming audio: – Hugh LaFollette, interviews with moral philosophers
    • F u re Pro cts tu jes Ethics lectures, etc. at conferences, colloquia, lecture series.s On-line video conferencess Philosopher’s biographies, with video includeds Custom interviews available in streaming media – audio: phone interviews – video
    • B ro adcasting A nim ns atios It is also increasingly easy to broadcast animations over the web. Currently, Macromedia offers the best format in its Flash files: – Euthanasia examples Streaming animations offer powerful ways of communicating visual knowledge over the Webs Very small file size (17K), streaming, vector graphics
    • H ardw R e u mnts: are q ire e Enco dings Video camera (for live) or tape (for archival)s Video capture cards Fast CPU (200 Megahertz Pentium minimum; dual Pentium Pro 200 preferred)s Adequate disk space (1 gig free)
    • H ardw R e u mnts: are q ire e Se e rv rs Fast server with plenty of RAMs Adequate disk space – 10-12 MB plus per hour for 56K • at $100 per gig, this is about $1 per hour for the cost of disk storage space
    • U se l u fu rl’ss This presentation: – http://ethics.acusd.edu/video.htmls RealNetworks – http://www.real.coms Macomedia – http://www.macromedia.coms Microsoft – http://www.microsoft.com/ntserver/netshow/