Re: Update on the Real DAB

Richard Evans wrote:
hwh wrote:
Richard Evans wrote:

Yes DAB reception in car can be very solid. That is one of the
advantages of DAB. It uses COFDM which is perhaps the one and only
part that they got rite when they developed DAB. Although they did
choose a poor error correction system to use with it. (Why they
didn't at least use RS coding, which was already in use for CDs,
well ermm, perhaps there are reasons that I'm not aware of, but it
seems like a bad decision).


Yes actually there is a very important reason: lack of processing
power. Nevertheless this can be solved with the implementation of
DMB with AAC+ streams.

I'm not sure that that argument adds up, when RS coding was used in CD
players, which started appearing well back in the 1980s.


1990 was a very long time ago, so processors will have been very, very slow
compared to today, but it's really a moot point anyway, because they should
have upgraded the DAB spec at some point in the 1990s when processors could
have handled the extra complexity.


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

Find the cheapest Freeview & DAB prices:
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