NICAM vs DVB vs DAB (original design)
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
DVB (aka AAC)
-- Codec complexity, coding time
-- Ogg Vorbis may have a better FFT
DAB (Musicam)
-- Not as efficient as AAC
-- FFT and filterbank perhaps too simple
-- Does not support 24 bit audio, only 16 bits
Still, if one were designing a DAB system in the mid-1980s ... NICAM is near
perfect.
-- IF AND ONLY IF "RDS" datastream is added
|