11-09-2017, 05:24 PM
Prior to PCM, the audio quality of FM broadcasts was a matter of geography. Fine if you lived in the south-east 
NICAM replaced PCM some time in the early '80s: http://www.audiomisc.co.uk/BBC/PCMandNICAM/History.html
It's still NICAM today: http://www.bbc.co.uk/rd/blog/2016-01-35-...ot-dot-dot
Not everyone realises that NICAM was not invented for adding digital stereo sound to analogue TV, but there it is. NICAM 728 is very similar indeed to NICAM 3.
Of course, NICAM is 14 bit, 32kHz.
As for going beyond 15kHz, there's the small matter of the 19kHz pilot tone...
NICAM replaced PCM some time in the early '80s: http://www.audiomisc.co.uk/BBC/PCMandNICAM/History.html
It's still NICAM today: http://www.bbc.co.uk/rd/blog/2016-01-35-...ot-dot-dot
Not everyone realises that NICAM was not invented for adding digital stereo sound to analogue TV, but there it is. NICAM 728 is very similar indeed to NICAM 3.
Of course, NICAM is 14 bit, 32kHz.
As for going beyond 15kHz, there's the small matter of the 19kHz pilot tone...
