[AudioI] AudioInjector Octo on Buster Lite

cx b clistburnham at gmail.com
Sat Jun 19 06:15:11 UTC 2021


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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