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a252rdiy.txt
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Internet Message Format
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1993-08-09
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3KB
From: bsalter@acorn.co.uk
Subject: Acorn news release: Replay
Date: 20 Jan 93 08:45:21 GMT
Acorn Replay DIY
Embargo Release Date 20th January 1993
Acorn Replay movies can now be created by Acorn Archimedes users directly
from camcorder or videotape, thanks to a collaborative development between
Acorn and third party developers.
(Replay is an innovative full motion video system which allows Acorn
Archimedes computers to display movies at up to 25 frames per second without
additional hardware. Audio is fully synchronised and movies can contain
several soundtracks for use in a variety of teaching situations.)
Until now, those wishing to create Replay movie files have had to send their
raw video to a professional compression service provider who would supply a
turnkey compression service to their customers.
Now, Acorn Replay DIY capture cards have been produced - notably by Irlam
Instruments - which plug in to the back of either an Acorn A5000 or A540
computer. These expansion cards capture the video input in real time into a
24-bit colour form and then compress the resulting data.
Typically the raw video takes up some 37 MBytes per minute which is then
compressed to under 5MB per minute in the final Replay file. As a result of
the reduced data processing bandwidth, Acorn Replay is ideally suited to
running directly from CD ROM. Audio can also be captured simultaneously by
these DIY cards, which compress this data by 50%.
Acorn's Technical Director, Malcolm Bird said "The low cost of these
devices, coupled with their ease of use, means that this approach is ideally
suited to the development of resource materials and for the production of
specialised movies for individual educational establishments.
"A growing number of CD ROMS and applications packages already provide a
wealth of Replay video clips; these DIY cards will now permit anyone to add
their own clips to this existing resource for use in their own particular
applications."
Malcolm Bird continued "We would expect developers who are creating CD ROMS
for distribution still to consider professional capture services, but these
new cards offer cost effective Replay capture to many other users.
"Several schools have already taken advantage of CD ROM technology to store
large multimedia databases which they have made. Acorn Replay DIY will
provide yet another resource of data which can be tailored to individual
requirements."
Further information from:
Stewart Palmer Jim Irlam
Acorn Computers Irlam Instruments
0223 254308 0895 811401