Thanks David, On Pi #2 I've loaded Fedora 28 libraries, compilers etc.. and all is working well using the command line: ./freedv_rx 700D ve9qrp_700d_int1_fast_snr2dB.wav - | aplay -f S16
This is quite low on CPU usage, just 16% on the Pi. So my "Parrot Repeater" idea using a Pi (Banana Pi) looks quite "do-able". I should give some numbers, VHF contest on now!! Alan VK2ZIW On Sat, 23 Jun 2018 05:22:51 +0930, David Rowe wrote > Hi Alan, > > For the last week I've been messing with the audio processing code on > freedv-dev to support different input samples rates for the Horus > balloon telemetry mode so some issues with the FreeDV modes may have > crept it. I haven't fully tested the FreeDV modes yet. > > Alan - I just tried a similar test to yours: > > 1/ Lenovo X200 Tx: > $ play ve9qrp_700d_int1_fast_snr2dB.wav > 2/ Lenovo X220 Rx: > freedv-dev svn 3770 > 3/ Two machines connected via a cable with 3.5mm plugs between > speaker and mic ports > > I get solid sync, same as using Tools - Start/Stop Play File to Rx > > There is a already a 6dB SNR file (with interleaver 8): > > http://rowetel.com/downloads/codec2/700d_part4/ > > See Example 12 of running simulations different SNRs with freedv_tx > and cohpsk_ch: > > https://svn.code.sf.net/p/freetel/code/codec2-dev/README_ofdm.txt > > Adjust the 3rd "No" argument on cohpsk_ch and look at the measured > SNR, replay freedv_rx with writing to a wave file. > > Cheers, > > David > > On 22/06/18 21:26, Alan Beard wrote: > > Hi David, > > > > I've rebuilt my 2nd Banana Pi (original), Fedora 28 and done a fresh > > load of the Development system and libraries. Mate desktop. The other > > was LXDE. > > > > SVN 3710 builds successfully and runs, no GTK errors when going > > Tools -> Audio Config > > > > To get sound going through the audio hardware, I'm testing by playing > > the WAV files from http://rowetel.com/downloads/codec2/700d_part4/ > > out the speakers of my main x86_64 box and into a microphone plugged > > into a USB dongle on the Pi. > > I have two USB dongles: > > SoundBlaster X-Fi Go! Pro > > C-Media CM108 clone. > > > > The 2db SNR WAV files from ve9qrp are too low in SNR to be decoded into > > intelligible audio. I see [Modem] and [Intrlvr] go green quite often but > > not often enough. Bits 370, Errs 128, BER 0.346 > > > > > > Can we have a set of "test" files of say 6db or 10db SNR please? > > > > One little hitch with the "Mate" desktop, I can't get XRDP to work. > > > > Anyway, off to bed for another day... > > > > Alan VK2ZIW > > > > > > > > > > > > > > On Fri, 22 Jun 2018 04:54:31 +0930, David Rowe wrote > >> Hi Alan, > >> > >> I saw some similar messages on Fedora 28 the other day. It seemed > >> to be related to resizing the FreeDV GUI window so that a button > >> like PTT wasn't visible. > >> > >> I imagine there is a way to limit the mimimum size of the Window. I > >> am looking for a maintainer for FreeDV GUI to look into just this > >> sort of thing. Would anyone like to help? > >> > >> List of small issues that need work at the bottom of the freedv-dev > >> README.txt: > >> > >> https://svn.code.sf.net/p/freetel/code/freedv-dev/README.txt > >> > >> Thanks, > >> > >> David > >> > >> On 21/06/18 18:04, Alan Beard wrote: > >>> Hi all, > >>> > >>> My rebuild of my Pi to Fedora 28 went well until..... > >>> > >>> On running FreeDV 3710 built today from sauce.... Tools -> Audio Config > >>> > >>> (freedv:11830): Gtk-WARNING **: 18:16:03.220: Negative content width -1 > >>> (allocation 1, extents 1x1) while allocating gadget (node notebook, owner > >>> GtkNotebook) > >>> > >>> (freedv:11830): Gtk-WARNING **: 18:16:03.234: Negative content height -1 > >>> (allocation 1, extents 1x1) while allocating gadget (node notebook, owner > >>> GtkNotebook) > >>> > >>> (freedv:11830): Gtk-CRITICAL **: 18:16:03.235: gtk_box_gadget_distribute: > >>> assertion 'size >= 0' failed in GtkNotebook > >>> > >>> (freedv:11830): Gtk-CRITICAL **: 18:16:03.235: gtk_box_gadget_distribute: > >>> assertion 'size >= 0' failed in GtkNotebook > >>> > >>> (freedv:11830): Gtk-WARNING **: 18:16:03.314: Negative content width -2 > >>> (allocation 0, extents 1x1) while allocating gadget (node header, owner > >>> GtkNotebook) > >>> > >>> ========== This happens when I try Tools -> Audio Config ================= > >>> BUT: Tools -> PTT Config - works > >>> Tools -> Options - works > >>> > >>> > >>> On Wed, 20 Jun 2018 22:48:28 -0700, Don wrote > >>>> I've had a couple of messages to the list blocked, apparently > >>>> sourceforge does not like comcast.... > >>>> > >>>> It seems to be working tonight so I'll try this again. > >>>> > >>>> > >>> > > -------------------------------------------------------------------------------- > >>> > >>>> > >>>> Yes, with just %d some 64 bit compilers will warn too. > >>>> > >>>> codec2-dev/unittest/ofdm_mem.c:46:12: warning: format ‘%d’ > >>>> expects argument of type ‘int’, but argument 2 has type ‘long > >>>> unsigned int’ [-Wformat=] printf("struct > >>>> OFDM.................: %d\n", sizeof(struct OFDM)); > >>>> > >>>> I have updated ofdm_mem.c to use %zd. > >>>> > >>>> Do you have warnings from fdmdv_mem.c too? > >>>> > >>>> -------- > >>>> > >>>> I put the -no-pie flag in for the new ofdm_stack program. David has > >>>> a compiler that produces "shared object" files by default even for a > >>>> plain executable program. Apparently that is the trend now as they > >>>> can be run as well as dynamically linked. > >>>> > >>>> This program is used with a utility which converts function > >>>> addresses to their name (addr2line). Shared object files get put > >>>> into mapped > >>>> (virtual) memory and the addresses don't match anymore. > >>>> > >>>> I don't know cmake very well so I may not have found the best way > >>>> to deal with this. > >>>> > >>>> -------- > >>>> > >>>> Regards > >>>> Don (new guy) > >>>> > >>>> On Thu, Jun 21, 2018 at 04:10:02AM +0930, David Rowe wrote: > >>>>> Don (new contributor who is working on the OFDM port to the stm32) > >>> added > >>>>> this option to get unittest/ofdm_stack to run. This program is a > >>> clever > >>>>> unit test to measure stack usage. So -no-pie is only really needed on > >>>>> x86 for this single unittest. > >>>>> > >>>>> Don can you pls comment on this linker option? > >>>>> > >>>>> Thanks > >>>>> > >>>>> David > >>>>> > >>>>> On 20/06/18 22:09, Richard Shaw wrote: > >>>>>> On Tue, Jun 19, 2018 at 7:51 PM Alan Beard > >>> <bear...@unixservice.com.au > >>>>>> <mailto:bear...@unixservice.com.au>> wrote: > >>>>>> > >>>>>> Hi all, > >>>>>> > >>>>>> unittest/CMakeLists.txt on lines 91 and 92 has the added option > >>>>>> -no-pie > >>>>>> > >>>>>> Which is not recognised by the linker here, Fedora 23 on armhf > >>>>>> GNU ld version 2.25-15.fc23 > >>>>>> > >>>>>> > >>>>>> If David can chime and say whether the -no-pie option is required > >>> that > >>>>>> would be the quickest fix. I know upgrades aren't always fun but the > >>>>>> oldest version of Fedora not EOL'd is 27. Can your hardware run on > >>> the > >>>>>> armv7hl version? I confess I don't understand the differences in arm > >>>>>> hardware and targets so I'm not sure what the differences are in > >>> armhf > >>>>>> vs armv7hl.... > >>>>>> > >>>>>> > >>>>>> Also, on a 32 bit machine the function "sizeof(thing)" returns > >>>>>> an int so a printf statement should use %d not %ld > >>>>>> > >>>>>> unittest/ofdm_mem.c > >>>>>> > >>>>>> > >>>>>> I tried Jeroen's suggestion to change to %zd and the output of > >>> ofdm_mem > >>>>>> looked fine on my Fedora 28 x86_64 machine. Can you try the same > >>> change > >>>>>> and see if it address your problem? > >>>>>> > >>>> > >>>> > >>> ------------------------------------------------------------------------------ > >>> > >>>> 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 > >>> > >> > >> ------------------------------------------------------------------------------ > >> 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 > > > > ------------------------------------------------------------------------------ > 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
