Hi all, Yes, I'm replying to myself.
Playing a file ./wav/all_2020.wav with freedv2020 decodes much better but only 50%. 1/2 sec audio bits, 1/2 sec silence between. CPU load is at 110%. So, in short, today's Pi3 (ARMv8) devices do not have the "grunt" yet. I have no idea about whether the "neon" extended instruction set is in use at this stage. If any of you developers would like to login to my Pi here, just ask. Who knows what next year will bring to the ARM family.... Alan VK2ZIW On Tue, 4 Jun 2019 08:35:53 +1000, Al Beard wrote > Hi all, > > > Now I have mode 2020 running on Debian 9.9 on a Pi, > I'm doing some Speaker to Mic tests with different Audio adapters > using the test file ./freedv-gui/wav/all_2020.wav > > > Playing ./freedv-gui/wav/all_2020.wav on my PC, an i3 8100 through a C-Media > USB device then speaker to the mic input to a SoundBlaster Play 3! on the Pi. > > > CPU usage on the Pi gets up to 80% (of one CPU) (there are five more). > This in [Spectrum] mode. > The GUI display on my Main PC (ssh -Y user@host) > > > The decoded audio > ============= only small bits. > > > Mode 700D with the same setup, almost 100% copy of > ve9qrp_700d_int1_fast_snr2dB.wav > > > > > Lockups in 2020 mode. > ================ Though the Sync indicator is ON, often > there is no speaker audio. Also once I had a 100%CPU lockup. > > > FreeBeacon > ======== Has the API changed such that "freebeacon" (with mods > to set the mode) will work? > > > > > > Trials on my PCs (Intel), I'll do that and report in another email. > > > > > ====== Hardware, my Pi ========== > > > RockPro64 with Debian 9.9 from mkfixit2001, fixed kernel 4.4.171 > > > > Some say, "It's NOT a Pi", well, it's only extra is a PCIe slot over the > "real" Pi3. Has Pi GPIO, HDMI, USB ports etc.. > > > > HOWZAT > > > Alan VK2ZIW > > > > > > > > On Tue, 28 May 2019 08:25:35 +0200, gerhard wrote> Hi Al, > > fine that you made it finally. > > I tried to setup snd-aloop as you told me and found, that this module is > > allready compiled in Ubuntu 18.04. > > I had to include following lines at the end of > > /etc/modprobe.d/alsa-base.config: > > options snd-xxxxxx index=0 > > options snd-yyyyyy index=1 > > options snd-aloop index=2 > > then start with: sudo modprobe snd-aloop > > > > The problem is: > > when I reboot the system I can seen my USB headset and the internal sound > > card as available connections in the audio part of FreeDV. > > After I start snd-aloop I can see the additional loopback there, but either > > the USB-headset or the internal soundcard is gone. > > I believe that has to do with some setting in general audio input/putput > > section or in the volume control section. > > I could produce a nice internal loop and could hear the great audio of mode > > 2020. > > I could connect the FreeDV input to the WebSDR, but I could not hear the > > decoded signal, as the USB-headset was gone. > > Just read about JACK Audio Connection Kit. Will try to install and run > > later today. > > Any further proposals? > > Regards > > Gerhard OE3GBB > > > > Am 28.05.2019 06:07, schrieb Al Beard: > > Hi all, > > > > I've fixed my issues running the FreedV 1.4 2020 app on Ubuntu and Fedora. > > One MUST use the "build_linux.sh" script. > > > > It sure looks to be working on my: > > > > Intel(R) Pentium(R) CPU G4560 @ 3.50GHz > > > > A system that does not have the AVX/AVX2 CPU flags. > > > > CPU usage is quite low, just 30 - 50% of one core in 2020 mode. > > "Waterfall" takes a bit more. > > > > Can somebody try this attachment: FDVstereo2020.tgz please? > > > > Alan VK2ZIW > > > > On Thu, 23 May 2019 15:28:00 +1000, Al Beard wroteHi all, > > > > Can somebody compile this up and test please? > > > > You will need "rtaudio" package installed > > > > http://www.music.mcgill.ca/~gary/rtaudio/ > > > > And of course, the Codec2 2020 library with LPCnet. > > > > Then just a Linux PC with a stereo audio interface and speaker. > > > > Do a Tx in 700D mode and note the audio. > > Then try 2020 mode. > > > > All I get is blurt, silence, blurt, silence etc.. > > > > I want this app working for a portable setup ie. no PC or laptop. > > A Pi. > > > > Alan VK2ZIW > > > > On Thu, 23 May 2019 12:48:01 +1000, Al Beard wroteHi all, > > > > Not so fast... > > > > On this Asus H110M-A system with a Pentium G4560 @ 3.50GHz > > we only have USB3 ports: > > > > 3 [S3 ]: USB-Audio - Sound Blaster Play! 3 > > > > The audio from "fdvcore" is "bitsy", not the nice smooth > > audio when the same USB dongle is on the Armbian system (Banana Pi > > M2 Berry) > > > > FreeDV 2020 GUI on Armbian > > ========================== > > > > Though the "cmake" system searches for AVX/AVX2 or Neon, > > when doing "make" impossible instructions (for the x86_64 CPU) > > can't be assembled in fdmdv2_main.cpp as I recall. > > Git: git rev-list --count HEAD > > 1922 > > > > Somebody has got to give it a go.... > > > > Alan VK2ZIW > > > > --------------------------------------------------- > > Alan Beard > > > > OpenWebMail 2.53 > > > > _______________________________________________ > > Freetel-codec2 mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > > --------------------------------------------------- > > Alan Beard > > > > OpenWebMail 2.53 > > > > --------------------------------------------------- > > Alan Beard > > > > OpenWebMail 2.53 > > > > _______________________________________________ > > Freetel-codec2 mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > > --------------------------------------------------- > Alan Beard > > OpenWebMail 2.53 > > --------------------------------------------------- Alan Beard OpenWebMail 2.53
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