"David Looser" wrote in message
...
"Brian Gaff" wrote in message
news
So, after asking a simple question in the tv group, I thought i'd ask
here, why did we go dab, and what of DRM and HD Radio, any chance of
these coming to us?

I thought "DRM" stood for "Digital Rights Management". What has that to do
with radio? And I've never heard of "HD" radio, the term is essentially
meaningless, it sounds like someone trying to jump on the HDTV bandwagon.

Why did we go DAB? Well "DAB" simply stands for "Digital Audio
Broadcasting" so the term applies to *any* form of digital "radio". Why
did we go for the system we have? At the time it was adopted it was felt
to be a good compromise between quality and cost that's why.

David.



DRM is Digital Radio Mondial, it is a low bit-rate digital radio that can
use short and medium-wave AM transmitters, and using AAC+ compression, is
capable of quite decent results, if not up to FM standards. It is being
promoted as a replacement for short-wave AM in those countries (like
Indonesia) which need a long-range radio medium of better quality than
short-wave.

There have been suggestions that Europe could adopt DRM for AM, but I've
heard no more about his in recent times.

HD radio is an American digital radio system, roughly comparable to our DAB,
but as I understand it use as a more modern form of compression than the MP2
of DAB, but at no greater bit rates than we're using, but which nevertheless
should therefore manage better quality.

S.

http://audiopages.googlepages.com