...

experiment/production/Sound-Notes.md

@@ -8,3 +8,15 @@ amixer cset numid=$chan -- ${vol}% > /dev/null
 ```
 
 Plugging the 3.5mm jack into the HDMI display.
+
+Note that there might need to be some further setup to get things working consistently.
+Maybe this in `/boot/config.txt`?
+
+```
+hdmi_drive=2
+```
+
+References
+---
+
+* [Raspberry Pi Audio Configuration](https://www.raspberrypi.org/documentation/configuration/audio-config.md)