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
>> EUR 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 wrote Hi 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 wrote Hi 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
>>
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>> ---------------------------------------------------
>> Alan Beard
>>
>> OpenWebMail 2.53
>
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> Alan Beard
>
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>
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