On 1/11/2012 8:36 AM, J G Miller wrote:
On Wednesday, January 11th, 2012, at 08:28:21h -0800, SMS wrote:

In any case, other tests, of the iBquity Codec confirm the
results in terms of sound quality.

And who conducted these other tests?


The most detailed test that compared a CD source versus digital radio at
various bit rates was conducted by Sheffield Audio Consulting and
prepared for NPR.

http://www.nrscstandards.org/DRB/Non-NRSC%20reports/NPRmultiple_bit_rate_report.pdf.
See Table 5.2.1 on page 11. The test methodology is in the appendix.

There are valid reasons to be opposed to digital radio, and I have
posted those in the past. Audio quality is not one of the reasons. Every
test by every testing entity, whether a double-blind test or just the
opinion of the reviewer, has shown that the "near CD quality" is not
just marketing hype, but is actually true.

I would caution you against falling in with the likes of Mr. Farce who
has demonstrated his lack of knowledge about broadcasting in general and
digital radio in particular.