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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


 

AttachmentSize
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


James/Eurominuteman

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

James/Eurominuteman

So what are EdTechies talking about?

http:/edtechtalk.com/search/node/streaming+classroom

http://edtechtalk.com/search/node/streaming+meeting

http://edtechtalk.com/search/node/streaming+workshop

James/Eurominuteman

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

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

James/Eurominuteman

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