pine64-pinephone: lower headphone volume to 70%
We used to have it at 40% and just bumped it to 100% (!2170 (merged)). With 100%, I can hear static noise in the headphones when using the PinePhone (pmOS CE) in a silent room, even if I turn the volume down in Pulseaudio (e.g. 18%-30% in Phosh). This was not the case when we had it at 40%.
70% seems to be the sweet spot, where no static noise can be heard when using headphones in a silent room, but where volume can still be turned up to a very high level if necessary.
FWIW, mobian and manjaro appear to have it at 100%:
- https://gitlab.com/mobian1/packages/alsa-ucm-conf/-/blob/80d628523acf1c0e86f398363504d0c04e560a4e/debian/patches/0001-ucm2-add-PinePhone-configuration.patch#L142
- https://gitlab.manjaro.org/manjaro-arm/packages/community/phosh/alsa-ucm-pinephone/-/blob/b0603c697869d843f1f611b6fcb5b1405d031460/HiFi.conf#L127
Would be nice if others could test this as well. Do you also get static noise in a quiet room with 100%, and is it gone with 70%? I did not test this on PineTab (don't have one), but I assume it behaves the same.
EDIT: to clarify, I hear static noise when playing media such as podcasts. There are no static noises when nothing is playing.