http://CBC.am/ wrote:


. DRM allows for FM radio quality digital audio
over very long distances.


Really? FM quality means a S/N ratio of at least 65dB and
and no more than 1% peak distortion, most of it low
harmonic. This requires even with the best digital codecs
at least 96 kb/sec, and probably a bit more (for stereo,
of course .... for mono the FM S/N level should be set
at more like 75 dB.)

What is the bandwidth of these digital signals that get
96 kb/sec?

Doug McDonald