Journal of Academic Development and Education JADE Issue 8 | Page 16
ARTICLE #2 | 17
16 | JADE
PHILIP DEVINE
Benjamin J. (1935). The Work of Art in the Age of Mechanical
Reproduction. Originally published in Zeitschrift für Sozialforschung.
Appendix
ARTICLE #2
Title
A case study in large scale
video recording using
Opencast
1. CSV data can be found at: http://www.kulacreative.co.uk/ededc/
edcmooc.csv. Authors
2. Definition of Representation: http://en.wikipedia.org/wiki/
Representation DOI
3. Definition of Mythology: http://en.wikipedia.org/wiki/Mythology
Glossary
mooc
Massive open online course
#edcmooc
Hashtag for e-learning and digital cultures massive online open
course Twitter feed
Carlos Turro, Ignacio Despujol, and
Jaime Busquets
http://dx.doi.org/10.21252/
KEELE-0000014
Contact
[email protected]
Área de Sistemas de Información y
Comunicaciones, Universitat Politecnica
de Valencia
Abstract
Universitat Politecnica de Valencia
(UPV) is a 35,000 students’ higher
educational institution in Spain, which
has been interested for quite a long
time in the application of technology
into learning. Following that path, UPV
applied as a member of the Opencast
community for Lecture Capture and has
used Opencast for several years. Being
Opencast an Open Source project gives
adopters a great amount of flexibility,
UPV is using actively Opencast for
different educational projects, like
Lecture Capture, Flipped Teaching and
MOOC production.
Results of the experience shows
that Opencast is a proper choice for
educational support, and also that
satisfaction and academic results of
the experience are quite good and no
doubt a valuable improvement in a
University environment.
Keywords
Video, lecture capture, educational
technology, flipped teaching
Context and Objectives
Universitat
Politècnica
de
València (UPV) is a 35,000
students’ higher educational
institution in Spain, which has
been interested for quite a
long time in the application
of technology into learning.
Following that path, UPV
applied as a member of the
Opencast
community
for
Lecture Capture and has used
Opencast for several years.
Opencast is an international
community (Opencast, 2016),
member
of
the
Apereo
network
of
institutions
(Apereo, 2016), interested
in developing systems and
software related to Lecture
Recording in education.
Opencast
is
also
the
name of the open source
lecture capture and video
management
system
which allows institutions to
capture, process, manage
and distribute video assets
on a large scale. It plays with
relevant academic systems
and services and provides
flexibility to meet the diversity
of
video
management
requirements we see today.
Thus, a university can have
a working Opencast system
deploying capture agents
in the lecture halls to record
simultaneously the teacher’s
video, audio and the screen
that the teacher shows in the
computer in the classroom,
creating
a
multi-track
recording, which can then
be ingested and published
through the core system.
Opencast, being an open
source project allows an
enormous amount of flexibility
in the components deployed
and the way of using them,
so there each installation is
somewhat unique. Here are the
main choices for an opencast
deployment:
Capture agent: the capture
agent is the computer that
actually records the video
and audio in the lecture hall.
There are different brands and
programmes, both commercial
and open source that provide
such equipment.
Sound system: The sound
system is related on how you
capture the audio from the
teacher. Common choices are
a lapel mic that the teacher
has to wear and power-on
before the lecture, a table mic
or a mic array.
This is a key topic in
deployment.
Lapel
mics
provide the highest quality if
properly used. However up
to 10% of recordings (in our
estimation) are lost because of
failure to power-on, incorrect
placement, battery issues, etc.
On the other hand, a recording
with bad audio quality is
useless.
A conservative choice is
having two sound systems
(e.g. lapel and table) and
use the second as a backup
system.
Opencast
don’t
provide automatic selection,
so manual intervention is
needed.
Cameras:
There
are
three