[AudioI] AudioInjector Octo on Buster Lite

[Matt Flax]

hi there,

Indeed it seems that your soundcard isn't being found.

Can you show the excerpt of the config.txt which mentions audioinjector ?

Also can you run dmesg and look for the audioinjector section.

One way to bypass pulseaudio's default manging with ALSA is to do the 
following :

########## BEGIN ~/.asoundrc ###################
@hooks [
     {
         func load
         files [
             "~/.asoundrc"
         ]
         errors false
     }
]

pcm.!default {
         type hw
         card 0
}

ctl.!default {
         type hw
         card 0
}

########## END ~/.asoundrc ###################

Matt

On 19/6/21 4:15 pm, cx b via People wrote:
> Also, here's what happens with Speaker-Test..
>
> pi at raspberrypi:~ $ speaker-test
>
> speaker-test 1.1.8
>
> Playback device is default
> Stream parameters are 48000Hz, S16_LE, 1 channels
> Using 16 octaves of pink noise
> ALSA lib pcm_hw.c:1822:(_snd_pcm_hw_open) Invalid value for card
> Playback open error: -2,No such file or directory
>
> On Sat, Jun 19, 2021 at 2:13 AM cx b <clistburnham at gmail.com> wrote:
>> Hi there -
>>
>> I'm currently trying to get AudioInjector up and running on a
>> Raspberry Pi 4, using Buster Lite and running headless.
>>
>> I'm a little new to this stuff, so I apologize for lacking clarity.
>>
>> My understanding is that PulseAudio is the default driver currently
>> and direct access to ALSA has been hidden, which seems to be creating
>> problems. In any event, as of now, I am unable to get Octo identified
>> and running.
>>
>> Going by the manual install on the Git, here is my log:
>>
>>
>> pi at raspberrypi:~ $ sed -i 's/\=volumealsa/\=REMOVEvolumealsa/'
>> ~pi/.config/lxpanel/LXDE-pi/panels/panel
>> sed: can't read /home/pi/.config/lxpanel/LXDE-pi/panels/panel: No such
>> file or directory
>> pi at raspberrypi:~ $ sudo apt remove pulseaudio
>> Reading package lists... Done
>> Building dependency tree
>> Reading state information... Done
>> Package 'pulseaudio' is not installed, so not removed
>> 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
>> pi at raspberrypi:~ $ echo updating the kernel
>> updating the kernel
>> pi at raspberrypi:~ $ sudo rpi-update
>>   *** Raspberry Pi firmware updater by Hexxeh, enhanced by AndrewS and Dom
>>   *** Performing self-update
>>   *** Relaunching after update
>>   *** Raspberry Pi firmware updater by Hexxeh, enhanced by AndrewS and Dom
>>   *** We're running for the first time
>>   *** Backing up files (this will take a few minutes)
>>   *** Backing up firmware
>>   *** Backing up modules 5.10.17-v7l+
>> #############################################################
>> WARNING: This update bumps to rpi-5.10.y linux tree
>> See: https://www.raspberrypi.org/forums/viewtopic.php?f=29&t=288234
>> 'rpi-update' should only be used if there is a specific
>> reason to do so - for example, a request by a Raspberry Pi
>> engineer or if you want to help the testing effort
>> and are comfortable with restoring if there are regressions.
>>
>> DO NOT use 'rpi-update' as part of a regular update process.
>>
>> ##############################################################
>> Would you like to proceed? (y/N)
>> pi at raspberrypi:~ $ echo check the device tree overlay is setup
>> correctly in the file /boot/config.txt ...
>> check the device tree overlay is setup correctly in the file
>> /boot/config.txt ...
>> pi at raspberrypi:~ $ sudo bash -c "sed -i
>> \"s/^\s*dtparam=audio/#dtparam=audio/\" /boot/config.txt"
>> pi at raspberrypi:~ $ cnt=`grep -c audioinjector-wm8731-audio /boot/config.txt`
>> pi at raspberrypi:~ $ if [ "$cnt" -eq "0" ]; then
>>>          sudo bash -c "echo '# enable the AudioInjector.net sound card
>>> dtoverlay=audioinjector-addons' >> /boot/config.txt"
>>> fi
>> After this, I reboot.
>>
>> pi at raspberrypi:~ $ aplay -l
>> aplay: device_list:272: no soundcards found...
>>
>> I'm not sure where else to identify or test the install.
>>
>> My goal is ultimately to run this interface with SuperCollider and my
>> following steps were to use this tutorial:
>> https://madskjeldgaard.dk/posts/raspi4-notes/
>>
>> Ultimately, though, SuperCollider could not identify Jack or the Octo.
>>
>> Any advice would be greatly appreciated.
>>
>> Thanks.

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