Hi all, I've put an post on the MMDVM email group asking them to consider Lower BitRate modes and alternate Codecs.
Clearly the respondents thus far cannot Think Outside the Square. One complained: "Codec2 doesn't have a Network (in place)" On the BitRate front they ALREADY have a lower bitrate modem in the demodulator chain with the implimentation of NXDN they did a 4800 bits/sec only recently. Another complained: "We don't have any, off the shelf radios" I ask, how far are we in being able to completely replace the firmware in the lowly MD-380 and clone radios? Or, could we beef up the power in the 7021, already used in the project!!!!!! Are we not EXPERIMENTERS? Looking to improve on the existing. =========== Anyway ========== My real purpose in my post was to, ask for "C" and "C++" programmers to help here. First they have to know about this project and it's merit. -------------- David, how far can you go in adding modes to the Codec2 library? I could probably add a mode to the FreeDV application and test it here between two radios and computers. Keep smiling Alan VK2ZIW On Thu, 8 Mar 2018 07:04:46 +1030, David Rowe wrote > Hi Alan, > > Yes that's a good description of how new modes are developed. > > My current goals for FreeDV are: > > (1) and (2): To complete development of FreeDV 700D, and FreeDV HD > to the point where they are integrated into the FreeDV GUI. This > involves C coding, and integration. > > (3) I am also working on system to build a FreeDV 2400A station > using legacy FM transmitters and SDR receivers. Talked about this > at my recent Wyong talk, will blog on it soon. For now the slides > are here: > > http://rowetel.com/downloads/2018-02-Wyong.zip > > Also see "Help Wanted" section of: > > https://www.rowetel.com/?p=5663 > > Let me know if anything interests you, or matches you skills set. > Strong C skills would be most useful right now. > > Cheers, > > David > > On 07/03/18 08:09, Alan Beard wrote: > > Hi all, > > > > It looks like SourceForge is up again. I'll see if this email comes > > back to me. Then I'll really know. > > > > David, is this the development procedure in developing a a new mode: > > > > 1) Use a simulator eg. "octave" to test the new design. > > > > 2) Convert to "C" and create the library "libcodec2.so" > > 3) Test exhaustively with the command line utilities "c2enc" etc.. > > 4) Add the new mode to the GUI app "FreeDV". > > > > I'm a 'jack of all trades, master of none' helping others wherever I > > can. My working life spans both RF Electronics then electronics in computers > > then drifting to computer operating support (dead disk drives, reload OS) > > then unix/Linux sys-admin. > > Unlike MANY sys-ops, I'm not afraid of the "C" compiler and linker but I'm > > not a programmer except in a limited way. > > I truly admire Joe K1JT and the WSJT project and the guy who does the MSHV > > 'clone' of it. Also, the MMDVM project giving us hams freeware DMR and P25 > > System Fusion and D-Star and now NXDN repeaters and inter-connection of. > > They have skills!! > > > > So, where can I help? > > > > > > > > Alan VK2ZIW > > > > > > > > On Sun, 4 Mar 2018 11:46:39 +1030, David Rowe wrote > >>> Is the 700D mode available anywhere? > >> > >> No, hope to release mid year. > >> > >> BTW pls use the codec2-dev mailing list for questions, that way > >> everyone can share in the answers. > >> > >> Cheers, > >> > >> David > > > > > > Alan > > > > Evil flourishes when good men do nothing. > > Consider the Christmas child. > > -------------------------------------------------------------------------- - > > Alan Beard Unix Support Technician from 1984 to today > > 70 Wedmore Rd. Sun Solaris, AIX, HP/UX, Linux, SCO, MIPS > > Emu Heights N.S.W. 2750 Routers, terminal servers, printers, terminals etc.. > > +61 2 47353013 (h) Support Programming, shell scripting, "C", assembler > > 0414 353013 (mobile) After uni, electronics tech > > > > > > -------------------------------------------------------------------------- ---- > > 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 Alan Evil flourishes when good men do nothing. Consider the Christmas child. --------------------------------------------------------------------------- Alan Beard Unix Support Technician from 1984 to today 70 Wedmore Rd. Sun Solaris, AIX, HP/UX, Linux, SCO, MIPS Emu Heights N.S.W. 2750 Routers, terminal servers, printers, terminals etc.. +61 2 47353013 (h) Support Programming, shell scripting, "C", assembler 0414 353013 (mobile) After uni, electronics tech ------------------------------------------------------------------------------ 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
