In article , Jim Lesurf
scribeth thus
In article , Tony
wrote:
"Jim Lesurf" wrote in message
...
I have now put up a page that compares the dynamics and level
compression on FM with that on DAB. The page can be found at

http://www.audiomisc.co.uk/HFN/DABvs...ewithlike.html

Interesting. I heard a Prom the other night on DAB, Chicago SO playing
Shostakovich 4th symphony. The dynamic range certainly seemed wider
than I am used to on R3 FM.

That is my impression, also. I must admit, though, that during the last
couple of years I have largely abandoned listening to FM


Of course FM has to deal with pre-emphasis, so percussion can be quite
seriously affected.

I don't know if pre-emphasis plays much part in this, but it is an
interesting point. The data does show that any sudden loud peaks have their
level swiftly pulled down on FM R3, and that the gain in a following quiet
period is slowly ramped up.

I can see the point of the compression as it helps pull extended pp periods
above the background noise on FM. But I now prefer digital transmissions
which don't have the problem.

Doesn't that metallic sheen on digital at those rates annoy you
though?..

Course if old Auntie took digital seriously she'd see to it that the bit
rates were higher them 192 on satellite at least!..

Perhaps the old moo is being an arse over the rates on DAB can't be seen
to be any higher on DSAT and DTV delivered radio..

Whereas the rates on DTV are 256 K/bits..

Odd that Dontcha tink?...

Slainte,

Jim


--
Tony Sayer