Hi Sebastien, I looked into this a few years ago. Turns out Gray codes don't always perform better than natural binary numbers in channels with bit errors:
https://www.rowetel.com/?p=3079 The natural/gray options are for experimental purposes. These days we're moving towards FEC protecting bits, so any benefit of using natural versus Gray coding isn't significant. Cheers, David On 03/01/19 21:51, Sebastien F4GRX wrote: > Hello, > > I see that fields in codec2 frames are gray coded, sometimes always, > sometimes optionally, with gray coding being the default unless > --natural is passed to command line tools, which is probably never the > case. > > So, what are the real use cases that disable gray coding? > > Is it shocking to assume that gray coding is actually always used? > > Thanks, > > Sebastien > > > > _______________________________________________ > Freetel-codec2 mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > _______________________________________________ Freetel-codec2 mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freetel-codec2
