[BC] HD Kills

[dtcasey@comcast.net]

Can you please remove me from your e-mail group. thanks

-------------- Original message -------------- 
From: "Mark Humphrey" <mark3xy at gmail.com> 

> Leonard hasn't revealed many details, but from what I've been able to 
> piece together, it's his independent sideband AM stereo system 
> combined with audio bandwidth extension, using a digital scheme to 
> carry the frequencies above 7.5 kHz. The digital information is 
> transmitted under the analog channel in a manner similar to the 
> "tertiary sidebands" of iBiquity's system, therefore it stays within 5 
> kHz of the AM carrier and doesn't invade the adjacent channels. I'm 
> not sure what type of codec he is using. 
> 
> The Wikipedia entry on CAM-D agrees with what I've heard on the street: 
> http://en.wikipedia.org/wiki/CAM-D 
> 
> Before passing judgment, I would like to compare it side-by-side with 
> the iBiquity system, but I don't know of any commercially available 
> receivers. It's quite possible that the subjective performance of 
> CAM-D would be considered superior to AM "HD Radio" by most listeners, 
> even though its a hybrid system. 
> 
> Mark 
> 
> 
> On 4/27/07, Jim Tonne wrote: 
> > 
> > At first I thought this: 
> > > http://www.wrathofkahn.org/ 
> > was a joke. But the more I looked the more 
> > I realized it is more sour grapes (as usual) and 
> > he is quite serious. Sigh. 
> > 
> > Can anyone tell me what "Cam-D" is? 
> > 
> > - JimT 
> > 
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