Search found 23 matches

by ktb
Wed May 03, 2017 8:36 pm
Forum: Octo Sound Card for the Pi
Topic: Octo arrived and working, potentiometer knobs?
Replies: 21
Views: 11511

Re: Octo arrived and working, potentiometer knobs?

OK, I think I got the "default" output working with shairport-sync. It seems I needed to run shairport-sync as the pi user since pulseaudio is running as a user service. So basically I created and enabled a modified version of the shairport-sync.service systemd unit file: /etc/systemd/system/shairpo...
by ktb
Wed May 03, 2017 1:43 am
Forum: Octo Sound Card for the Pi
Topic: Octo arrived and working, potentiometer knobs?
Replies: 21
Views: 11511

Re: Octo arrived and working, potentiometer knobs?

It also occurred to me that shairport-sync runs as the shairport-sync user, so maybe the shairport-sync user needs its own .asoundrc config (/home/shairport-sync/.asoundrc). Unfortunately, that doesn't seem to help: May 02 10:35:56 raspberrypi shairport-sync[1835]: ALSA lib pcm.c:2495:(snd_pcm_open_...
by ktb
Wed May 03, 2017 1:26 am
Forum: Octo Sound Card for the Pi
Topic: Octo arrived and working, potentiometer knobs?
Replies: 21
Views: 11511

Re: Octo arrived and working, potentiometer knobs?

Hmm, I see your dilema ! The anyChannelCount plug device is only a route device. It doesn't change the sample rate nor word length in bits. Is it possible to use it ? Matt Interesting. I think I understand. I have Audacious working like this now with ALSA: Output plugin: ALSA Output Bit Depth: 16 B...
by ktb
Tue May 02, 2017 8:35 pm
Forum: Octo Sound Card for the Pi
Topic: Octo arrived and working, potentiometer knobs?
Replies: 21
Views: 11511

Re: Octo arrived and working, potentiometer knobs?

Correct, I could use the default device which would be "Playback/recording through the PulseAudio sound server". I just can't use the "hw" device. shairport-sync prefers ALSA and prefers "hw" ALSA devices: "Direct hardware device without any conversions."
by ktb
Tue May 02, 2017 6:38 pm
Forum: Octo Sound Card for the Pi
Topic: Octo arrived and working, potentiometer knobs?
Replies: 21
Views: 11511

Re: Octo arrived and working, potentiometer knobs?

Oh - are you using the .asoundrc from the setup page ? It will let any app use any number of channels. thanks Matt Did you read my last post? Yes, I'm using the .asoundrc config that you posted in the "How to setup" thread on this forum -- http://www.flatmax.org/phpbb/viewtopic.php?f=9&t=1222. I in...
by ktb
Mon May 01, 2017 5:22 pm
Forum: Octo Sound Card for the Pi
Topic: Octo arrived and working, potentiometer knobs?
Replies: 21
Views: 11511

Re: Octo arrived and working, potentiometer knobs?

Oh OK, To use between 1 and 8 channels with the Octo, you need to install the .asoundrc from the setup page. Matt I'm already using the .asoundrc file content you posted in the "How to setup" thread. I manually set up the Octo using your instructions. pi@raspberrypi:~$ cat ~/.asoundrc pcm.!default ...
by ktb
Mon May 01, 2017 11:49 am
Forum: Octo Sound Card for the Pi
Topic: Octo arrived and working, potentiometer knobs?
Replies: 21
Views: 11511

Re: Octo arrived and working, potentiometer knobs?

I've removed the MoPower UPS from my setup for now. I got my access point working again using NetworkManager and dnsmasq. I've found that shairport-sync doesn't support cards with more than 2 channels, so I suppose that explains why it isn't working. shairport-sync[22297]: audio_alsa: Channels count...
by ktb
Sun Apr 30, 2017 12:43 pm
Forum: Octo Sound Card for the Pi
Topic: Octo arrived and working, potentiometer knobs?
Replies: 21
Views: 11511

Re: Octo arrived and working, potentiometer knobs?

After my attempts to manually load the audioinjector-addons overlay, I rebooted the system and just left it for a long time. When I came back, I noticed the local keyboard connected to the Pi3B through a hub wasn't working. The mouse still worked. I SSHed in and found what looks like a new kernel pa...
by ktb
Sun Apr 30, 2017 5:00 am
Forum: Octo Sound Card for the Pi
Topic: Octo arrived and working, potentiometer knobs?
Replies: 21
Views: 11511

Re: Octo arrived and working, potentiometer knobs?

The MoPower UPS hooks up to pins 2,4,6,8 and 10: 5v, 5v, Ground, GPIO14, GPIO15. http://www.allspectrum.com/mopower/MoPower%20UPS%20-%20User%20and%20Assembly%20Manual%20v1.01-03-20-2017.pdf The touchscreen uses a DSI ribbon cable (but I believe it actually uses the i2c-0 bus behind the scenes) as we...
by ktb
Sat Apr 29, 2017 10:39 am
Forum: Octo Sound Card for the Pi
Topic: Octo arrived and working, potentiometer knobs?
Replies: 21
Views: 11511

Re: Octo arrived and working, potentiometer knobs?

I've done a little more testing without disassembling everything. It seems that when I have the vc4-fkms-v3d overlay enabled (I've been using that for a while now without any big problems), the Octo fails to load consistently. The first day of using the Octo, it seemed to work fine. I wonder if enab...