[AudioI] Octocard not working

[Holguin Daniel]

 Hi everyone.
I was able to get audio working on the Octocard. If you are curious.
I installed Index of /pub/raspberrypi/raspbian/images/raspbian-2018-11-15

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Index of /pub/raspberrypi/raspbian/images/raspbian-2018-11-15


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I followed some of the instructions at How to setup - AudioInjector Forums

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How to setup - AudioInjector Forums


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Then I did the manual process but I skept updating the kernel. If you update the kernel, it will be a too new of a version and audio and wireless interfaces would stop working.
No need to uninstall pulseaudio nor run the ~pi/.config/lxpanel/LXDE-pi/panels/panel command because the panel file doesn't exist in this version of OS.
So I just modified so the last two lines are:#dtparam=audio=ondtoverlay=audioinjector-addons
Then, I created the file /etc/asound.conf with the content:
pcm.!default {# type hw# card 0 type plug slave.pcm "anyChannelCount"}ctl.!default { type hw card 0}pcm.anyChannelCount { type route slave.pcm "hw:0" slave.channels 8; ttable { 0.0 1 1.1 1 2.2 1 3.3 1 4.4 1 5.5 1 6.6 1 7.7 1 }}ctl.anyChannelCount { type hw; card 0;}
Finally, I created the file ~/.asoundrc with the content:
pcm.!default {# type hw# card 0 type plug slave.pcm "anyChannelCount"}ctl.!default { type hw card 0}
After rebooting, the card is listed and I can play media files.
Somehow the multichannel media files I have are downmixed to mono or to the first two output channels. I will test with more in-depth channel patching. But it does work. I get audio and no noise.
Cheers,
Fausto Daniel




    El martes, 14 de marzo de 2023, 12:05:20 p. m. EDT, Holguin Daniel via People <people at lists.audioinjector.net> escribió:  
 
  Hi all!I installed mplayer, then played a stereo wav. Same result, noise out of the 6 channels.Has anyone made work the octocard? Would you please share the steps to replicate?



Thanks!Daniel
    El lunes, 13 de marzo de 2023, 11:12:06 p. m. EDT, Holguin Daniel via People <people at lists.audioinjector.net> escribió:  
 
 Hi!
So I wrote some test file with jackaudio and the output was noisy. Therefore I started to debug.
1. aplay -l and -L both look apparently correct.
2. So I decided to install audacity and produce a test file to verify each channel independently.3. The octocard device appears in the software4. When playing it sounds noise through all the channels disregarding the audio content.
Here's a video of the tests in which I show the problem to my friend.
Output of Octoaudioinjector not working


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Output of Octoaudioinjector not working


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Can you guys help me make my Octocard work?
I'm using RaspbianLinux ampd 6.1.13-v7+ #1632 SMP Thu Feb 23 12:19:08 GMT 2023 armv7l GNU/Linux

Thanks.
Fausto

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