Hi all, On the Pi here, I get about the same decode as from my MAC Pro when playing ve9qrp_700d_int1_slow_snr2dB.wav on the Linux PC here out it's speakers and into the same mic on the Pi and the MAC.
The sound devices for the mic are C-Media USB device clones. The MAC is a Gigabyte P45 m/b with a Core 2 Quad CPU. O/S El Capitan 60% CPU load with Waterfall The Pi is a Banana Pi, 1G ram, dual core, 1Tb SATA disk as / and swap. O/S Fedora 25 70% CPU load with Spectrum, GUI on RDP terminal My "proposed" FreeDV "box" will be a Banana Pi M2 Berry, a 128Gb SATA SSD and two C-Media clone USB audio devices. This will all fit in a box two house-bricks in size. No bigger than a Yaesu FT-897. Power consumption about 0.5A @ 5V. What do you think? Alan VK2ZIW On Fri, 15 Jun 2018 20:25:30 -0500, Matt Roberts wrote > Thanks David, > > You had several very good suggestions, and I didn't make it a third > of the way through your list before I found a main component of why > I could get 1600 to work but not 700D. > > The expected API sample counts for 700D (1200+) are very different > from 1600 (320-ish). That exposed a subtle issue with my I/O > buffer management. The limits I was using were fine for 320 sample > windows, but not for 1200+. > > I'm still testing, but that got me off high-center. > > Thanks to everybody for the in- and out-of-list assistance. You > are all great to work with. > > 73, > Matt > > ------------------------------------------------------------------------------ > 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
