Hi all, This is no fun at all....
Armbian on the M2 Berry here: cat /etc/debian_version 9.9 cat /proc/asound/cards 0 [Device ]: USB-Audio - C-Media USB Audio Device C-Media USB Audio Device at usb-1c19000.usb-1.2, full speed 1 [S3 ]: USB-Audio - Sound Blaster Play! 3 Creative Technology Ltd Sound Blaster Play! 3 at usb-1c19000.usb-1.4, full spee Though the FreeDV2020 app runs without crashing, I get no audio in from either device. Groups, I'm a member of these: dialout:x:20:alanb audio:x:29:alanb plugdev:x:46:alanb ======================= OK then ============= What Linux systems are people using successfully? Please, what Linux version and what hardware? Alan VK2ZIW On Mon, 27 May 2019 07:15:40 +0200, gerhard wrote > Hi Alan, > Tnx for instructions. I will try that today. > 73's > Gerhard OE3GBB > > > Am 27.05.2019 04:01, schrieb Al Beard: Hi Gerhard, > > > Virtual Audio Cable ... on Linux. > > > Oh the Windoze world ..... VAC is a Windoze term. > > > It is the "loopback" device, part of the ALSA system since Day 1. > > > Though, never setup on "out of the box" systems. > > > Add a file to /etc/modprobe.d/ "snd-aloop.conf" > with contents "snd-aloop" > > > and reboot (the easiest way). > > > When booted up again check for it loading, do: > > > cat /proc/asound/cards > > > It will give you 32 channels of "loopback". > > > You are right though, the Linux sound system is hard to get one's head around. > > > With the kernel level drivers (ALSA). > Then the "user level" PulseAudio which by default, "claims" all the devices. > > > The your application can either get a list of devices available from either > of Pulse > or ALSA. > > > In short, tricky. > > > And, just to annoy me, the "snd-aloop" kernel driver is not available in > Armbian. > > > Alan VK2ZIW > > > > > > > > > > > On Sun, 26 May 2019 15:09:17 +0200, gerhard wrote > > Hi Alan, > > Great to hear that mode2020 is running on a Banana Pi! > > I was able to install on Ubuntu 18.04 on a I5-8350. Hardware was just for > > 350,- direct from China. > > Made some tests in mode 2020 with WebSDRs and on QO-100 satellite. > > I am still having problems with correct tuning. Also VAC is not working on > > LINUX, so I had to make analog connections - quite noisy. > > Do you have any information what to use for VAC unter LINUX? I have been > > trying a virtual sink on pulsaudio, but it didn't work correctly as I > > didn't see the audio device in FreeDV. > > Any other methode to use virtual audio cable on Ubuntu? > > regards > > Gerhard OE3GBB > > > > > > Am 26.05.2019 13:59, schrieb Al Beard: > > Well, > > > > After a bit of "hacking" removing the "impossible instructions" trying > > to determine is this system (not Intel or AMD) has AVX/AVX2 in the > > FreeDV GUI Ver 1.4, it actually runs and doesn't crash in 2020 mode. > > > > At this point, I have what looks like a working FreeDV 2020 app. > > > > No success on Fedora 29 on an i3 8100 or Ubuntu 18.04 on a current Pentium > > bought last week. H110 motherboard, bought for this job!! > > > > Both crash often and always when [Stop] is pressed. > > > > CPU load on the Berry, running a remote X session (ssh -Y user@host ) > > in 2020 mode, no audio from a real radio yet. > > With Waterfall: 60% of one CPU core > > With Spectrum: 30% or one CPU core > > > > In short, light load. > > > > 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 > > > > _______________________________________________ > Freetel-codec2 mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 --------------------------------------------------- Alan Beard OpenWebMail 2.53
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