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Multimedia Presentations
via the Internet
Jeremy Rowntree
Multimedia Presentations via the Internet – Jeremy Rowntree June 2001
The Problem
How to permit a lecture to be seen in two places at once?
Why me?
Because that’s the sort of thing IT Officers get asked to solve
Multimedia Presentations via the Internet – Jeremy Rowntree June 2001
Aims
To ensure that the technology does not interfere with the experience of the primary audienceTo give the second audience a worthwhile experienceTo minimise the cost of implementation
Multimedia Presentations via the Internet – Jeremy Rowntree June 2001
Possible Solutions
ISDN video-conferencingPowerPoint Broadcast TechnologyNetMeeting software
Multimedia Presentations via the Internet – Jeremy Rowntree June 2001
ISDN Video-conferencing
Allows two-way interactive videoDedicated line so offers good, reliable quality
Pros
ConsNeeds both lecture rooms to have ISDNNeeds special hardwareCosts real money
Multimedia Presentations via the Internet – Jeremy Rowntree June 2001
PowerPoint BroadcastPros
Best for recording in a controlled environment for repeated re-broadcast
ConsNeeds IIS with streaming installedRemote display required manual editingAudio & video not always in syncI couldn’t get it to work reliably
Multimedia Presentations via the Internet – Jeremy Rowntree June 2001
NetMeeting software
FreeAllows sharing of the PC screen
Pros
ConsUses IP, so affected by network traffic levelsVideo quality is poor
Multimedia Presentations via the Internet – Jeremy Rowntree June 2001
What did we choose?
ISDNBut, it turned out that the lecture was to be given in a non-ISDN equipped room, so we ended up with …..NetMeeting
Multimedia Presentations via the Internet – Jeremy Rowntree June 2001
What would I choose now?
NetMeetingNetMeetingWhy?
Program sharing works brilliantlyAudio was acceptable, despite worriesStudents weren’t fussed about video, so we didn’t bother
Multimedia Presentations via the Internet – Jeremy Rowntree June 2001
Obtaining NetMeeting
If not installed, download fromwww.microsoft.com/windows/netmeeting/
Windows 2000 – Software is preinstalled. See KB Q267958 if you need to reinstall it
Multimedia Presentations via the Internet – Jeremy Rowntree June 2001
Setting up NetMeeting
On first launch, a wizard asks some questionsIt is not essential to be listed in the Internet Directory, or to log on to their serverDo have your speakers and microphone plugged in, though the audio tuning wizard can be run again later
Multimedia Presentations via the Internet – Jeremy Rowntree June 2001
Preferred settings 1
Multimedia Presentations via the Internet – Jeremy Rowntree June 2001
Preferred settings 2
Zero setting leaves hiss audible, which sounds better IMHO
Multimedia Presentations via the Internet – Jeremy Rowntree June 2001
Video camera?
Necessary only if the audience needs to see something other than just the PowerPoint slidesIdeally, you need a second screen for the video outputCan be done using two computers at each end, or two plus one and a conference call.
Multimedia Presentations via the Internet – Jeremy Rowntree June 2001
Video Camera 2
Failing that, use the “Always-on-top” option in the View menu , or “Picture-in-Picture” if your projector has itYou’ll need to ensure that the PowerPoint presentation is designed not to overlap the chosen screen locationAvoid if possible
Multimedia Presentations via the Internet – Jeremy Rowntree June 2001
Choosing a camera
Creative Webcam IIIwebcam.creative.com/products/webcam3/
Logitech Quickcam rangewww.logitech.com/cf/products/cameras.cfm
Or use an actual video cameraYou’ll also need a video capture cardDoes offer greater flexibility if you want something other than a static camera
Multimedia Presentations via the Internet – Jeremy Rowntree June 2001
Audio
Vital to get this rightMake time to check every setting at both ends of the link-upIf possible use the actual lecturerOtherwise, find someone with a similar voice and use the actual room
Multimedia Presentations via the Internet – Jeremy Rowntree June 2001
Choosing a mic
Lapel MicEasy to wear but poor voice pickup
Headset Mic - www.labtec.com/europe/lva7330.htm
Follows head turns, but looks sillyHair contact can be a problem
Collar Mic - www.labtec.com/europe/lva7370.htm
Comfortable with good voice pickup,but beware of turning your head
Multimedia Presentations via the Internet – Jeremy Rowntree June 2001
Radio Microphones
Oxford Visuals installed the OUCS michttp://www.oxfordvisuals.co.uk/http://www.axemusic.com/products/audio/microphones/wireless_mics/toa_wm370.htm
Other linkshttp://www.stagetec.co.uk/Product_Pages/at1200.htmlhttp://www.rockfactory.co.uk/PAdept/microphones.htmlhttp://catalog.applesound.co.uk/http://www.trantec.co.uk/
Guidance noteshttp://www.gbaudio.co.uk/radio.htm
Multimedia Presentations via the Internet – Jeremy Rowntree June 2001
Demonstration
Launch NetMeeting softwareActivate videoRun audio wizardCall receiving computer using IP addressShare software
Multimedia Presentations via the Internet – Jeremy Rowntree June 2001
Program sharingYou can share any number of individual programs, or your entire desktopYou can even set up a three-way call
PowerPoint, Microphone and Webcam
Webcam display and speakers
PowerPoint –full screen
Multimedia Presentations via the Internet – Jeremy Rowntree June 2001
Things to remember
Important to use the PC mouse, otherwise the remote audience don’t know what you’re pointing atColour photos transmit badlyNetMeeting’s Chat facility is useful during initial set-upIf you’re fitting speakers, fit them level with the front seats
Multimedia Presentations via the Internet – Jeremy Rowntree June 2001
PowerPoint broadcast
Didn’t work for me – got “access denied”If you want to try it yourself, seehttp://office.microsoft.com/assistance/2002/articles/ppBroadcastToLargeGroups.aspx
You’ll need an NT4 or Win2K server with IIS and the On-line Presentation serviceSample at :http://www.microsoft.com/Windows2000/virtualconference/sample/default.asp
Multimedia Presentations via the Internet – Jeremy Rowntree June 2001
ISDN Videoconferencing
Talk to Daphne Tilling (70712) at the University Offices about having the ISDN lines installedTalk to the ETRC – www.etrc.ox.ac.ukabout the hardware
Multimedia Presentations via the Internet – Jeremy Rowntree June 2001
Other software options
CUSeeMe - http://www.cuseeme.com/
The original web-based video programMac, PC, Linux and Solaris versions available
iVisit - http://www.ivisit.com/
Free Mac/PC software with basic facilitiesVideoIP – http://wearesimply.com/
Linux-based videoconference softwareSupports H.323 standard
Multimedia Presentations via the Internet – Jeremy Rowntree June 2001
Acknowledgements
Andrew Foulsham – Institute of Molecular Medicine
Peter Robinson – ETRC
Daphne Tilling – University Telecomms
Phillip Dove - Medical Illustration
Prof. Jon Austyn – Nuffield Department of Surgery
