I’ve been trying to re-enable the build-in sound device of the RPi 3b+. However I had no luck, the card does not show up in the “aplay -l” and the sound device does not show up in “cat /proc/asound/cards/”. How can I enable it?
p.s.
The sound device works perfectly fine with the current Raspbian image (2018-06-27-raspbian-stretch.img) and has low-latency for e.g. in ZynAddSubFX. So I would really like to give Zynthian a try.
Edit #1:
To be clear: I dit not manage to enable the on-board soundcard. I was under the impression that is was explicitly disabled so my question is:
How can I re-enable the on-board sound device in the Zynthian image?
I could not enable the sound card in Zynthian. I cannot find any trace of how the card has been disabled (no drivers blacklisted, no special ALSA configuration in /usr/share/alsa.conf).
The main reason I think is is disabled explicitly is because the sound device works perfectly fine when I use the Raspbian Stretch image (and the sound quality is good).
Just add “dtparam=audio=on” to /boot/config.txt. It also helps to choose the default sound device for ALSA because sometimes the wrong default card is chosen. In my case the Roland UM-ONE was chosen as a default, which obviously cannot play PCM data
I’ve configured the Pi’s on-board sound device and i’m testing it with Zynthian.
It’s not the first time i do that. I did at the very begining of the project, but the sound quality and latency were so bad, that i completely forget this device.
After reading your comments, i’ve tried again … but everything is the same . Very poor sound quality and a huge latency. I tried with different jackd options, but nothing improves …
Could you send us your jackd options and a small “analog” recording for comparing?