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In Reply to: Re: huh? posted by Dan Banquer on December 12, 2002 at 05:34:11:
This is only the aggregate rate of the data part of the frame. The real bit rate is around 3 MHz. There is a ton of non-data stuff in the frames.
Follow Ups:
Actually, the real bit rate for redbook CD is 705,600 bits per second. The 3 mHz you refer to is the signal rate for the S/PDIF interface where the Manchester endoding uses two clock cycles per bit. The rest, as you have said, is for other, non-audio information.
The real data rate is 44100*16*2=1411200 the manchaster encoding increase the line rate to twice as much pluss the above mentioned overhead. To adequatly transfer the data the cable bandwidth must be about 2.3 times that much. To transfer digital CD quality sound in stereo you need the bandwidth of one analog PAL video channel. It is funny how all those things work out :-). Also, you need one T1 to carry the same raw digital signal over the public network.
dee
;-D
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