David Eduardo wrote:
"Scott Dorsey" wrote in message
...

IBOC FM is a mixed bag. It doesn't sound all that wonderful, but again
I think most of the FM sound quality issues have to do with overprocessing
more than anything else, and digital transmission doesn't do anything
about
that.

I am "in the building" with one of these, and on the available receivers, FM
IBOC has definite advantages, one you realize you are hearing audio without
the preemphasis curve we are used to hearing on FM. That done, it sounds
better to everyone who has heard real-world music programming on it.

Run that by me again? You shouldn't hear any pre-emphasis curve on normal
FM. That's what de-emphasis is for.

And anyway, typical station EQ is far more radical than the emphasis curve,
I am sorry to say. The processing at typical stations is much more of a
sonic limitation than the transmission process.

IBOC AM sounds pretty awful to my ears. Much worse than good wideband AM
transmission with a good receiver (which is something hardly anyone here
will ever get a chance to hear, I am sorry to say).

While it will take time to enter the market, the sound of AM IBOC now is
very, very good. When running music on the one of these that is also in the
building, it sounds better than some local FMs.

Your local FMs must sound really dreadful.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."