alsa-issue / raspbian 9/10
Recent Version (2.16) has problems with communicating via Alsa with onboard Audio Hardware on raspberry pi (3B / 4 on raspbian 9 (stretch) and 10 (buster)). You get a high pitched, distorted noise. Console shows the message "error: audio I/O stuck... closing audio"
- Jack seems to have similar issues: Jack cannot connect to onboard soundcard.
- PD Vanilla from the repositories is working perfectly fine (directly with alsa, without jack).
- Purr-Data 2.10.1 is working fine
- communication with external usb-soundcards works perfectly fine