"Radio Ronn" lq6dpvk02-at-sneakemail.com wrote in message
. ..


It also removes some (all?) of thecomp[ression that was necessary for AM
analog....and adress listener fatique that occurrs with too much
processing/compression, etc.

Compression isn't and never has been "necessary" for AM analog (and btw,
it's also used on FM AND on IBOC). It's used to 'punch up' the audio so that
the station appears louder than it would without compression (can you say
6dB of dynamic range? Of course you can!). Compression is evil. The last
holdouts for un-compressed signals were the classical stations. This was
because classical listeners expected both pianissimo and crescendo, and
everything in between. The more plebian formats don't matter so much, since
average listeners only seem to care that they can hear something, not what
that something may contain.

It also removes some (all?) of thecomp[ression that was necessary for AM
analog....and adress listener fatique that occurrs with too much
processing/compression, etc.

Compression isn't and never has been "necessary" for AM analog

Compression isn't necessary for anything. Except it has become common use
expecially on AM where the mdoulation is the signal.

(and btw, it's also used on FM AND on IBOC).

It's used on almost all analog broadcasting. Very little on Iboc.

Compression is evil.

That's why you should welcome HD. ;0

"Radio Ronn" lq6dpvk02-at-sneakemail.com wrote in message
. ..

It also removes some (all?) of thecomp[ression that was necessary for AM
analog....and adress listener fatique that occurrs with too much
processing/compression, etc.

Compression isn't and never has been "necessary" for AM analog

Compression isn't necessary for anything. Except it has become common use
expecially on AM where the mdoulation is the signal.

(and btw, it's also used on FM AND on IBOC).

It's used on almost all analog broadcasting. Very little on Iboc.

Wrong. HD signals are processed (the right term) for consistency and a
stable dynamic range. They just are not processed the same way analog is
processed.

It's used on almost all analog broadcasting. Very little on Iboc.

Wrong. HD signals are processed (the right term) for consistency and a
stable dynamic range.


Sorry to correct you Eduardo....most of the stations I have dealing with are
currently not (or barely) processing their IBOC signals.

"A Browne" wrote in message
...

It's used on almost all analog broadcasting. Very little on Iboc.

Wrong. HD signals are processed (the right term) for consistency and a
stable dynamic range.


Sorry to correct you Eduardo....most of the stations I have dealing with
are currently not (or barely) processing their IBOC signals.

And all that I have seen have either the Omnia or Optimod digital versions.

First, the differing levels of different source materials demands that a
degree of leveling be applied just for consistency. Then, we have to
recognize that the listening environment, particularly in vehicles, is noisy
and the dynamic range has to be brought up to avoid lower level passages
becoming masked in ambient noise. While clipping and severe peak limiting
are not needed, avoidance of occasional high excursions also improves the
listening experience.

I'd love to know of any HD-1 signals that are not processed. Most of us know
that in-car listening is subject to dropouts beyond about the 64 dbu
contour, and having the analog and digital signals similarly processed is
important. Plus, lots of content was originally analog, and needs a degree
of control.

"Brenda Ann" wrote in message
...

The last
holdouts for un-compressed signals were the classical stations. This was
because classical listeners expected both pianissimo and crescendo, and
everything in between. The more plebian formats don't matter so much,
since average listeners only seem to care that they can hear something,
not what that something may contain.


Every classical station I have known had peak limiting and some degree of
AGC leveling. First, the legal requirment to not overmodulate comes into
play. And then the fact that the dynamic range of much classical is not
enough on the low side to overcome ambient noise where radios are listened
to. So the dynamic range is reduced, while being greater than that of a CHR
station, it is still reduced significantly. I've owned a classical station
and managed another, and in the process visited many, ranging from KMZT to
WCLV.