Hi David, Thanks for the kind words! I had looked at LPCNet before, but on the Mozilla repo when J.M. Valin made the announcements on xiph.org. Does your variant of LPCNet only support the 1733 bit/s rate? The Mozilla one is 1600 bits/s which makes it a bit easier for me to use as I don't have to adjust the frame header parameters. I'm a bit wary of neural networks as it seems their performance highly depends on the quality and amount of training data while Codec2 does not. I have read an article recently claiming that the median amount of information transferred with human voice is about 39 bits/s. This seems off by an order of magnitude to me, but if they are right it means a lot of improvement can still be made on the vocoders.
Best regards, Adrian On Sun, Sep 8, 2019 at 12:27 AM David Rowe <da...@rowetel.com> wrote: > Look great Adrian, well done! I quite enjoy using gqrx for several work > and play projects, so that's a fine starting point. > > You might also consider a LPCNet codec mode. > > Cheers, > David > > On 08/09/19 04:04, Adrian Musceac wrote: > > Hi, > > I made a clone of Gqrx with transmit support for digital and analog > > voice, video and IP data. > > You can see it in action here: > https://www.youtube.com/watch?v=9bxorlma7QU > > What I'd like to know is if people are interesting in transmitting and > > receiving FreeDV with SDR hardware. I'm looking at adding such a feature. > > Relevant code is in the next branch of > > https://github.com/kantooon/qradiolink > > > > Many thanks to Alex Csete and Moe Wheatley for making the code used to > > build this open source. > > > > Best, > > Adrian > > > > > > > > > > _______________________________________________ > > Freetel-codec2 mailing list > > Freetel-codec2@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > > > > > _______________________________________________ > Freetel-codec2 mailing list > Freetel-codec2@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 >
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