My understanding the decoder does not require a lot of computing power. Training the data is.
On Mon, Apr 23, 2018 at 1:04 AM, David Rowe <da...@rowetel.com> wrote: > I don't think they are on this list, but I have had a response via email so > free free to reach out to them. > > Their current algorithm needs a GPU to decode, so won't run on a SM1000 (or > even CPU) class machine. This sort of computational complexity is common > for new DSP algorithms. The tend to get more efficient over time. > > - David > > On 23/04/18 13:46, Akshay Mishra wrote: >> >> Are the authors available on this list -- I read the paper and if some >> trial is available would like to play with this on our setup (similar to >> SM1000 but with a different RF front end). A training set for each user can >> be incorporated when they first state and made available to all... >> >> thanks, >> >> On 22 April 2018 at 01:32, David Rowe <da...@rowetel.com >> <mailto:da...@rowetel.com>> wrote: >> >> Some amazing work with Codec 2 and WavNet ... using a Codec 2 >> encoder and WaveNet decoder they have speech quality as good as AMB >> wideband at just 2400 bit/s >> >> http://www.rowetel.com/?p=5966 >> >> - David >> >> On 20/04/18 11:41, David Rowe wrote: >> >> Hi Bruce, >> >> I'll be presenting at our WIA national conference on the same >> dates .. will send you the slides. Aiming to release on FreeDV >> GUI by then. >> >> - David >> >> On 20/04/18 11:35, Bruce Perens wrote: >> >> Woo hoo! Please tell me about anything you'd like me to >> present at Hamvention. This will definitely be in there. >> >> On Thu, Apr 19, 2018 at 6:51 PM, David Rowe >> <da...@rowetel.com <mailto:da...@rowetel.com> >> <mailto:da...@rowetel.com <mailto:da...@rowetel.com>>> wrote: >> >> Hello, >> >> I've been working steadily on FreeDV 700D, porting from >> Octave to C, >> and working through some tricky sync problems. I can >> now simulate >> the end-end system on the command line, and listen to >> the results. It's outperforming FreeDV 1600 by about >> 10dB on fast fading >> channels, and is error free at -2dB SNR on AWGN channels. >> >> The main differences from FreeDV 700C are a new OFDM >> modem with rate >> 1/2 LDPC code and the option of a long interleaver >> (seconds of >> latency). It uses the the 700 bit/s codec, although >> with a few >> tweaks we could run other codecs and LDPC codes using a >> few dB more >> SNR. More inf on the FreeDV 700D mode here: >> >> https://www.rowetel.com/?p=5573 >> <https://www.rowetel.com/?p=5573> >> <https://www.rowetel.com/?p=5573 >> <https://www.rowetel.com/?p=5573>> >> >> For anyone who would like to play along, here's >> README_ofdm.txt for >> the mode: >> >> >> https://svn.code.sf.net/p/freetel/code/codec2-dev/README_ofdm.txt >> >> <https://svn.code.sf.net/p/freetel/code/codec2-dev/README_ofdm.txt> >> >> <https://svn.code.sf.net/p/freetel/code/codec2-dev/README_ofdm.txt >> >> <https://svn.code.sf.net/p/freetel/code/codec2-dev/README_ofdm.txt>> >> >> This includes references to blog posts, lots of command >> line >> examples, and specification at the end. There's enough >> information >> for the super keen to run it over the air using the cmd >> line tools, >> which I haven't done yet. >> >> Next steps are some over the air tests, write a >> freedv_api.c "mode" >> for it, integration into the FreeDV GUI program, and >> lots of tweaking. >> >> - David >> >> On 16/04/18 08:52, Glen English wrote: >> >> I will write more abt this when I return, however >> a) the quality >> of the capacitor influences notch depth, b ) >> getting the area >> and proximity of the loop to the line matters. for >> a 6" filter, >> anything over 33db for 600k bp-reject is very good. >> >> >> >> >> ------------------------------------------------------------------------------ >> >> 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 >> Freetel-codec2@lists.sourceforge.net >> <mailto:Freetel-codec2@lists.sourceforge.net> >> <mailto:Freetel-codec2@lists.sourceforge.net >> <mailto:Freetel-codec2@lists.sourceforge.net>> >> https://lists.sourceforge.net/lists/listinfo/freetel-codec2 >> <https://lists.sourceforge.net/lists/listinfo/freetel-codec2> >> >> <https://lists.sourceforge.net/lists/listinfo/freetel-codec2 >> <https://lists.sourceforge.net/lists/listinfo/freetel-codec2>> >> >> >> -- You received this message because you are >> subscribed to the Google >> Groups "digitalvoice" group. >> To unsubscribe from this group and stop receiving >> emails from it, >> send an email to >> digitalvoice+unsubscr...@googlegroups.com >> <mailto:digitalvoice%2bunsubscr...@googlegroups.com> >> <mailto:digitalvoice%2bunsubscr...@googlegroups.com >> <mailto:digitalvoice%252bunsubscr...@googlegroups.com>>. >> To post to this group, send email to >> digitalvo...@googlegroups.com >> <mailto:digitalvo...@googlegroups.com> >> <mailto:digitalvo...@googlegroups.com >> <mailto:digitalvo...@googlegroups.com>>. >> Visit this group at >> https://groups.google.com/group/digitalvoice >> <https://groups.google.com/group/digitalvoice> >> <https://groups.google.com/group/digitalvoice >> <https://groups.google.com/group/digitalvoice>>. >> For more options, visit >> https://groups.google.com/d/optout >> <https://groups.google.com/d/optout> >> <https://groups.google.com/d/optout >> <https://groups.google.com/d/optout>>. >> >> >> >> >> -- Bruce Perens K6BP - Standards committee chair, >> license >> review committee member, Open Source Initiative >> President, Open Research Institute >> >> >> >> ------------------------------------------------------------------------------ >> >> 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 >> Freetel-codec2@lists.sourceforge.net >> <mailto:Freetel-codec2@lists.sourceforge.net> >> https://lists.sourceforge.net/lists/listinfo/freetel-codec2 >> <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 >> Freetel-codec2@lists.sourceforge.net >> <mailto:Freetel-codec2@lists.sourceforge.net> >> https://lists.sourceforge.net/lists/listinfo/freetel-codec2 >> <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 >> Freetel-codec2@lists.sourceforge.net >> <mailto:Freetel-codec2@lists.sourceforge.net> >> https://lists.sourceforge.net/lists/listinfo/freetel-codec2 >> <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 >> Freetel-codec2@lists.sourceforge.net >> 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 > Freetel-codec2@lists.sourceforge.net > 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! 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