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Streaming into/within/from Real-Live Workshops (Classrooms, Meetings)

A. Introduction

Benchmark Examples 

Lebow and Maddrell Workshop about Webcasting at SLN Summit 2008

http://www.ustream.tv/recorded/jHZDoDLoSVImtxC.m0LZYygqtbNms,XZ

DesiLu style Three "Camera" system by Academy Intern Paul McLean

http://pilot.sln.suny.edu/documentation/ANGEL/webcasting/webcasting.htm

http://en.wikipedia.org/wiki/Multiple-camera_setup 

Video: Classroom Of The Future HD: What's New in Educational Tech

http://www.youtube.com/watch?v=QcXEznPXj8k&feature=related

IBM Forecast on the Virtual Workplace

http://eightbar.co.uk/2008/03/25/ibm-virtual-worlds-1q-2008-roundup/ 

Project Wonderland

https://lg3d-wonderland.dev.java.net/

B. Configuration

NASA Conference Organizer

http://groups.drupal.org/conference-organizing-distribution 

Wiki-Category: Film Techniques

http://en.wikipedia.org/wiki/Category:Film_techniques 

 ePresence: Web Conferencing and Webcasting System (freeware) 

http://epresence.tv/products


C. Process

C1. Administration Processes

C2. Core Processes

C3. Support Processes

Skype Help Page: Call Quality Issues

Skype's help page delivers some insight about: Avoiding call echo, Avoiding background noise, One way sound, Robotic sound, Words cut off, Delay


 


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EN-0000-Template-Webcast-Academy-000.ppt56 KB

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Captured Workshop Requirements from SLN Summit

Nice-to-Have Scenario (results from the SUNY Learning Network SOL Summit Webcast) http://www.ustream.tv/SUNY/videos

Feature
Receiver Receiver notes
Webcaster Webcaster Notes
Lecturer
Lecturer notes
Hardware
2 computer screens

Three Cameras
Two Computers
Adequate zooming  and resolution capability of camcorder needed
Laptop. laser pointer Needs agreement regarding the svideo connection
Software
Stabile browser





Presentation
Separate zooming of the video streams
Rendered resolution is a problem

Streamed font size within the presentation is a problem
Needs requirements for creation
Audio
1 Audio stream to the
speakers

1 USB microphone



Video


Stream 1:
Camcorder with adequate zoom capability






Stream 2:
Svideo from the computer with the PowerPoint presentation
The changeover time between lectures and different lecturer computers presents a problem




Backup stream:
From the 2nd camcorder



Chat






Internet






Browser
The user is able to zoom each video stream into both computer screens separately

Both video streams are embedded into 2 separate browser windows



Lighting




Indirect lighting located behind the projector screen

Here is a screencast explaining how it was done.

Here is a screencast explaining how the Three "Camera" Webcast from the SLN Summit was performed. http://pilot.sln.suny.edu/documentation/ANGEL/webcasting/webcasting.htm I will note here that many of the presenters wanted to use their own comptuers and did not have S-Video Out, so many of the presentations were a two camera shoot.

Configuration Overview

An excellent job done. A scheme diagram of the configuration would be nice. http://www.gliffy.com/ James/Eurominuteman

Audio Echo Behavior during a Workshop

Wiki makes a recommendation to this problem: 

"One of the most direct uses of equalization is at a live event, where microphones and speakers operate simultaneously. An equalizer is used to ensure that there are no frequency bands where there is a round trip gain of greater than 1, as these are heard as audible feedback. Those frequencies are cut at the equalizer to prevent this."

http://en.wikipedia.org/wiki/Graphic_equalizer

James/Eurominuteman

This is somthing I really need to look into.

I will be bstreamcasting a live event using Ustream in a couple of weeks, where I am going to have this problem.  Anyone have any step by steps with a particular euqalizer that they know works?

More about the Microphone and Speakers

Wiki: Microphone

http://en.wikipedia.org/wiki/Microphone 

Wiki: Loudspeakers

http://en.wikipedia.org/wiki/Loudspeaker 

James/Eurominuteman



book | by Dr. Radut