Hi Alfred, Internally the modem side of the 700 modes run at Fs=7500 Hz due to the design of the waveform for the coherent PSK modem. However in 2015 Jim Ahlstrom kindly added a resampler to the FreeDV API so the 700 modes now all have an Fs=8000 Hz interface.
If you call the cohpsk modem functions directly then Fs=7500Hz is required. Cheers, David On 30/01/17 07:14, wully wrote: > Hi David > > What is not clear to me: In 700b mode you use cohpsk-Modem which runs > with 7500 Samples/s. > Is this true also for 700c mode? > > Thanks > > 73, Alfred, hb9epu > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, SlashDot.org! http://sdm.link/slashdot > _______________________________________________ > Freetel-codec2 mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Freetel-codec2 mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freetel-codec2
