On 3/7/11 8:01 AM, John Higdon wrote:
In ,
wrote:

So all-digital does allow for more "virtual CD" quality audio channels,
but no, you cannot combine multiple audio channels for even higher
quality audio.

Thank you for finally acknowledging that. I've only had to mention it
about five times. And YOU'RE the "expert"!

From the actual iBiquity handbook the rate is 96Kbps. There is no
"98Kbps" spec in the system. So going with the real figure, we find that
the bit rate is approximately one-fifteenth that of an ordinary CD, the
CD including forward error-correction. Amazing! "Virtual CD quality"
with seven percent of the data used by the CD. And using a ten-year-old
codec at that. You don't have to be an audio engineer to discover why
"HD Radio" sounds the way it does.

And in reality they split the bandwidth in two when broadcasting two
services. One of them may have more than half, so the other one will be
crippled even more.

gr, hwh