Hi David, Steve and all, This is the best USB dongle thus far: Bus 001 Device 016: ID 041e:30d3 Creative Technology, Ltd Sound Blaster Play! Model SB1140
All the C-Media C119 clone USB thingies work but after a few minutes go all bitsy. The audio is barely readable. They did start well. (I have six of these, so cheap, buy a few, hope some work) The X-Fi Pro from Creative (Model SB1290) didn't work. it's a bit funny. Tested with: ve9qrp_700d_int1_slow_snr2dB.wav Speaker on PC to mic on BPi M2B. CPU load, about 18% of one core, four core SoC. alanb@bananapiM2berry:~/Applications/FDVCore$ fdvcore 0 700D DEBUG: Card ID = 0 DEBUG: Modem = 7 DEBUG: Window = 512 DEBUG: using 1 input channels. DEBUG: using 2 output channels. mode=rx <- get into Rx mode OK:MODE=RX stat OK:STAT=-4.97984:SYNC stat OK:STAT=3.10449:SYNC stat OK:STAT=-4.94433:NO_SYNC stat OK:STAT=0.180112:SYNC stat OK:STAT=1.6263:SYNC here the audio is quite good stat OK:STAT=-0.825745:SYNC ========= perhaps two C-Media, one audio IN, the other OUT. === Needs coding to test. Alan VK2ZIW On Sun, 17 Feb 2019 07:11:29 +1030, David Rowe wrote > Hello Alan, > > Last time I tested it, FreeDv 700D ran just fine on a Rpi model B, about > 10% CPU load. Since then Steve has done some fine work in > optimising it even further. > > Cheers, > David > > On 17/02/19 06:29, Alan Beard wrote: > > *Hi all,* > > * > > * > > *Matt responded:* > > > > Hi Alan, > > > > Thanks for the kind feedback. I'm curious to hear more about your > > project as you develop it. It sounds like fun. > > > > I should edit the web article to explain a little better how the command > > interface works. The syntax is: > > > > /command=value/ > > > > ...and the equals-sign is required when providing /value/. So to > > control T/R on /fdvcore/, you want: > > > > /MODE=TX// > > //MODE=RX/ > > > > See if that fixes the problem you are having. I'll make a note to > > myself to update the web page with a little better explanation. > > > > As for Linux vs. Raspi, I did most of the development on a full Linux > > box, and then debugged on RasPi, so both platforms should work equally > > well. The only real difference is that RasPi doesn't have enough CPU > > power to run some of the more CPU-intense modes like 700C. The 1600 > > mode should run just fine RasPi or a full-power Linux box. > > > > 73, > > Matt > > > > On 2/15/19 4:19 PM, Alan Beard wrote: > >> Hi Matt, > >> > >> Steve and I have been trying to run your SmallDV application. > >> > >> I'm not a C++ programmer, here is my trial of fdvcore: > > * > > * > > *<cut>* > > > > > > Alan VK2ZIW > > > > 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 > > > > > > > > > > _______________________________________________ > > Freetel-codec2 mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > > > > _______________________________________________ > Freetel-codec2 mailing list > [email protected] > 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 _______________________________________________ Freetel-codec2 mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freetel-codec2
