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What is the point of digital voice?
On 24/02/2015 12:47, gareth wrote:
What is the point of digital voice when there are already AM, SSB and FM for those who want to appear indistinguishable from CBers? Perhaps it is cynicism from the manufacturers who introduce such things as they see their traditional highly-priced corner of the market being wiped away by SDR technologies? Bandwidth reduction for one. If you can encode and compress speech sufficiently then you can use less bandwidth in transmission. Clarity. With duplex transmission it is possible to transmit clear speech over a noisy channel assuming you use an error correcting and retransmission protocol, self correcting codes techniques etc. Band sharing. Multiple users can transmit on the same band assuming adequate time-slicing and collision detection and traffic handling. or just for the fun of doing it. Andy |
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