Video for VI Learners
We start by suggesting some design
issues and approaches: general design principles for producing video
which attend to VI needs. You'll see these scattered around in other sections:
we bring them together here as reminders about perceptual issues; designing
in support for supplementary information such as text and speech; and
how to capitalise on new presentation modes such as interactive choice
between multichannel video streams, and when to exploit branching.
Technologies and techniques
- Digital Versatile Disc has multichannel
sound, extra graphical tracks and interactivity.
Colleges could be developing VI-friendly video-rich
multimedia and creating VI-friendly Web materials. They will probably
be doing this using CD-ROM and/or
access to the Web.
The video clips used in multimedia,
Web materials and on DVD and CD-Rom have a lot in common, and we'll discuss
these techniques together, touching on graphical and textual as well as
technical aspects of their use.
One theme will keep recurring: plan for the future by creating richer
assets than you think you need. In practical terms this means that even
if you are presently working in a more traditional format like VHS, assume
that you will soon be called on to rework your programme into a more powerful,
non-linear format with much better support for VI students. When that
happens, you'll be glad you took those close-ups, multiple camera views,
and high quality still shots.