On Wed, 20 May 2020 14:15:19 +0100, John Williamson
wrote:
On 20/05/2020 12:03, wrote:
Lossy-data reduction does not cause "nasty and tizzy" effects, as the original poster referred to.
Questionable processing chain settings, as JW mentioned, or less than ideal gain-staging, can.
Lossy data compression and digital transmission can and does cause many
artifacts, including "nasty and tizzy" ones as well as burbling mud and
other problems when the error correction fails.
I hear these all the time as I travel round using a DAB radio.
If you must criticise, at least do so correctly.
Haven't heard burbling mud for many years. I used to get it often on
my Arcam home tuner, but I think that was their first effort, and it
had a lousy front end. Anyway, the mud is what you got when you were
running out of signal. I guess these days they just drop the audio
before error correction is denied signal to that level. All still
better than FM though. The slightest multipath, inevitable in urban
driving, resulted in swishes and hisses. I used to inch back and forth
in traffic jams to find an exact location where the signal was clean.
DAB relished multipath - it just meant more signal.
d
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