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Old July 10th 07, 10:45 PM posted to alt.radio.broadcasting,alt.radio.digital,rec.radio.shortwave
tony sayer tony sayer is offline
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First recorded activity by RadioBanter: Jul 2007
Posts: 12
Default NICAM vs DVB vs DAB (original design)

In article . com,
Boltar writes
On 10 Jul, 02:11, "Max Power" wrote:
Pros and cons of NICAM vs DVB vs DAB (original design)

Disadvantages

NICAM
-- J.17 Emphasis curve
-- 32 kHz sample rate
-- 14 bits vs 16 bits of modern systems; requires resampling for 16 bit
origin material
Still, if one were designing a DAB system in the mid-1980s ... NICAM is near
perfect.
-- IF AND ONLY IF "RDS" datastream is added


14 bits and 32Khz near perfect? Even CD players managed 16 bits 44.1
Khz in the mid 80s. You're also forgetting that NICAM has virtually
sod all error correction. The slightest dodgy signal and its off into
wax cylinder audio mode (though you won't here it on most TVs , they
mute or switch to the FM sound as soon as the bitstream goes wonky)

B2003



Well it was designed for distribution and for that its very good and
doesn't do at all badly for domestic TV .. that reception path is
usually a good one...
--
Tony Sayer