Salut Remi, Sat, Mar 13, 2010, [email protected] skribis: [...] > At the moment, the frequencies are detected in the function > fax_implementation::decode_apt : > > It counts the number of transitions between [0,25] and [ 229,255], > divided by the number of samples. This ratio is multiplied by the > sample_rate 11025 hz, then compared to 300 hz (450 hz for stop), > with an empirical margin of a couple of Hz. I took this algorithm > from hamfax but it does not work very well when the signal is poor.
I'm not much into wefax, but a local ham fellow, Thierry F4DWV once wrote atpdec, http://atpdec.sourceforge.net/ atpdec is satellite oriented, but could it still help? The source code is GPLv2. Cheers -- Stephane - F8CFE _______________________________________________ fldigi-alpha mailing list [email protected] https://lists.berlios.de/mailman/listinfo/fldigi-alpha
