linus wrote:
Looks like a great buy Clive, I'm looking for something similar for my mom's place.
Does DAB radio require listening with a bottle of pils?
The thing about DAB (digital) radio - and I'd read this before I ever heard it - is that, in order to get the sound at a steady, easily-broadcastable data rate - the audio is necessarily compressed (in a sonic way, not a data way) during the recording/broadcasting process. Over here, allegedly many regular listeners to Terry Wogan's old radio show wrote/mailed in to the BBC, saying that they were no longer hearing the full lushness (my phraseology) of Wogan's brogue. What they were experiencing was the same compression techniques that make all the adverts you'll see on telly sound ike everyone is shouting all the time, even when they're not. This kind of thing is most noticeable when you've been watching a film, where the audio will have been less compressed as part of the recording/mastering process. Just FWIW, all the broadcasts I've seen (on the digital displays) so far are listed as having a rate of 64 kbps. If you saw an MP3 download at that quality, you'd possibly refuse to download it, as it would sound pretty shit. I'm not sure if DAB radio has some kind of
decompression algorithm built into it which actually helps it compensate for this, but... just don't expect the earth, sonically-speaking!
More on audio compression on
this page and data/audio compression in the second half of
this one.