"Fed Up Lurker" wrote in
message

Hi Ken, I only found your post just now, I thought this
group was dead?

Despite you bringing the RAO guttersnipes in, the group seems to have
recovered.

Anyway, the subject of HD sound may have
been discussed in this group, but I clicked on the link above, and then in
my toolbar
searched "HD Sound" and "BBC HD Sound", there isn't such
a thing is there?

"HD Sound" and "BBC HD Sound" are marketing terms, and are therefore
whatever their authors want them to be.

From what I can discern the BBC's "HD Sound" is just a
higher bit rate,

That would appear to be very similar to other practice in the industry.

a search reveals nothing else apart from it is the Beebs
higher bit rate and only available via it's iplayer, so
internet only on a browser and from the Beeb only!

Not exactly an industry standard, check!

I did a quick search on "Hi-Def sound", then widened it
to "Hi-Def audio", try it, you'll get results covering
everything from Dolby/DTS, through to Blu-Ray, SACD etc
etc, covering 16/48, 24/96, 24/192, etc.

I think we should take "Hi Def" to mean "higher def". While it is relatively
easy to raise the definition of a recording in technical terms, it is hard
to raise the defintion of a recording in terms of reliable perceptions.

In the case of this use of the terminology by the BBC, it is probable that
the previous standard was so low that subjective improvement is actually
possible.


But the Beebs
claim isn't anything more than a compressed stream at a
higher bit rate. You didn't fall for the BBC guff did you
Ken?

I suspect that the BBC "Hi def" material may actually sound better, on the
grounds that the earlier (baseline) effort was actually quite audibly
flawed.