In article , Serge Auckland
wrote:
"Don Pearce" wrote in message
...


The Freeview radio will be better quality than the FM, particularly
for classical (R3?). The digital source is not compressed (dynamics,
not data) and is a much more realistic version of the original than
the FM, which unfortunately has to go through a signal processor
before it gets to the transmitter.

Unfortunately, Radio 3 on DSAT and Freeview are also compressed.

In case the OP does not already know. "Compressed" is used to mean two
totally *different* things in this context. Alas, this seems to be because
the same word was chosen by two different sets of engineers who originally
worked on different topics, but which have now come together.

I would prefer to say that the Freeview sound is 'data reduced', but for R3
is not 'level compressed' in the same way as FM. So far as I can tell, this
difference - combined with the relative lack of background noise and
interference - is why I have come to prefer R3 via Freeview to via FM.

As the signal is MPEG 2 rather than FM, the results are somewhat
different, and as I understand it, R3 is not so heavily compressed on
DSAT and Freeview as it is on FM.

I can confirm that, having measured the statistics of the dynamics for
comparisons on a number of occasions.

Slainte,

Jim

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