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EDITORIAL COMMENT
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February 2001 |
Going
digital!
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Digital is unstoppable.
Whether you or we like it, digital technology is now pretty
well unstoppable in broadcasting. Some of, or should we say in reality,
most of, the reasons for this are financial but the tide is unstoppable
and we felt it about time to look at some of the pros and cons. No technical contest.
In technical terms, in theory at least, there's no
real contest: dubbing or editing without degradation, instant access
to the bits you want, ability to edit more accurately or re-edit a
known piece knowing only an "in" and "out" point but without needing
to wait whilst a tape plays through all of the material, better quality
audio (and video) if wanted or the ability to cram in more channels
of the same quality within the same spectrum. In reality maybe things
aren't quite that perfect, if only because we humans listen to or
look at an analogue world and thus don't necessarily relate particularly
well to some of the factors that currently come with some of today's
digital technology.
Technical plus! So let's take the pros first. Adjustable non-linear
technology can be a terrific aid to a craftsman in both audio and
video who wants to get something just right. In the days of disc audio
recordings, editing really didn't exist and even after tape (and always
with film) the advantages of non-linear capability was significantly
hampered by the fact that you lost some material each time with a
physical cut as well as having difficulty in getting the exact cut-point.
Now with graphical displays along a timeline and the ability to accurately
adjust edit points as well as mixes on a trial basis without losing
anything, a craftsman has no real excuses for not getting things right.
Not of course, given time to do so! Then, if the trouble is taken
to develop a proper filing system and electronically label material
as it goes onto a server hard drive, it's very easy to recall it -and
possible for more than one person to use the same original source
at the same time for different purposes.
It also helps the business side!
And of course, some forms of record
keeping, can then be much more automated. No human intervention is
needed to produce a list of what material has been used, what has
actually been broadcast (and go immediately to a time-stamped recording
if there is a query from an advertiser or a complaint), where relevant
what royalties need to be paid, and via watermarking also ensure that
piracy is traceable. It also makes distribution more sophisticated.
The central computer can be set up to remotely control station servers
and deliver material to them; the station equipment in turn can be
set up to opt in and opt out on a pre-organised basis. And what if
the human you're using is a bit too laid back or disorganised at times?
You could of course have the computer as presenter but so far that
route would seem to have limited appeal. But, not going that far,
the message-box from the data base can come up with suggestions and
hints - or could even stop a back-to-back repeat of the same item,
be it a news story or a musical track in error. And of course, should
it be felt necessary, back-up copies can be made very easily and printed
schedules produced so that, in case of a problem, there is an emergency
fallback available. Or even a halfway house for pre-recorded programme
distribution. Digital all the way to a CD, which is then, shipped
physically where a station prefers this.
Still some cons.
Digital technology can not only aid control but can also enable the lazy or hard pressed to just stick things together without listening to transition points and edits. Result a vastly inferior product - cheap but nasty to all except the accountants. And, as we have already noted in a report on the effects of the "cash" technology that takes out pauses to allow more adverts but may well ruin the pace of a show (RNW Jan 6, 2000 ), the bean counters don't necessarily seem to mind product problems. Not that we should be too hard on them bearing in mind the numbers using Napster and other technologies to download MP3s. Considering the amount an enthusiast would spend extra on ensuring a turntable was silent for playing an LP, we can't conceive that a single enthusiast would ever use a PC to play music which includes very quiet passages. If anyone does know of a PC cooling fan as silent as a turntable, please let us know and we'll be delighted to retract. For that matter we would note that MP3 itself is a compromise of losing some signal to reduce storage requirements, however well it may be designed to set those compromises to minimise the effect to the human ear. Did we say cheaper but nastier?
Better if we so choose!
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