Re: Net Meter [radio station bit rate] tutorial please? I want to nail this????????

"Richard Evans" <R.P.Evans.NoSpam@xxxxxxxxxxxx> wrote in message
news:sjX5k.19477$312.3857@xxxxxxxxxxxxx
jamie_p84@xxxxxxxxxx wrote:


TCP has absolutely no "error correction" whatsoever - it has error
*detection*, and it asks for packets to be re-transmitted that it
hasn't received or that are in error.

TCP uses a 16-bit checksum to detect errors and corrects them by
asking for the offending packet to be resent, storing any newer
packets in the meantime, and then rearranging them in the correct
order. It does this in order to correct errors. If you choose to be
pedantic and insist on calling it "error detection" instead, then I
couldn't care less.

Your post suggested that error correction was a significant
overhead.


Absolutely. And he actually said this:

"TCP has overhead because it includes extensive error correction,
packet management and congestion control."

He's now simply trying to squirm his way out of making one of his
usual blunders.


This suggests that you meant error correction data, added to the
data
stream, rather like the way error correction is done in digital
broadcasting over the airwaves. Otherwise why would it be a
significant
overhead, as 16 bits in a packet of many kb is hardly a significant
overhead.


I've measured a stream this morning, and it had a 6% overhead.


If you actually meant error detection then why did you make out that
it
is a significant overhead?


He did mean error correction.



--
Steve - www.digitalradiotech.co.uk - Digital Radio News & Info

The adoption of DAB was the most incompetent technical
decision ever made in the history of UK broadcasting:
http://www.digitalradiotech.co.uk/dab/incompetent_adoption_of_dab.htm


.

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