On 28. 03. 25 11:58, Maciej Strozek wrote:
W dniu pią, 28.03.2025 o godzinie 11∶41 +0100, użytkownik Jaroslav Kysela napisał:
On 28. 03. 25 9:36, Maciej Strozek wrote:
Hardware volume control in cs42l43 can go up to +31.5dB which can cause audio degradation. For best results, keep the hardware volume set to 0dB and let software volume control the output.
It's something which I dislike (software volume control). If there's a hardware limit, it should be added to the driver. Eventually, alsa- lib plugins may be extended to do this cropping using a configuration. Also, it may be a bug in pulseaudio/pipewire. The +0dB volumes should be handed with a care.
I agree this is not very elegant to leave it to soft volume, but until things are resolved elsewhere this is the best way to get best audio for most users?
I don't see the pipewire upstream report. Please, make an report against pipewire to move discussion there and add the Link: tag to the comment.
If you like to disable something just because the UCM application does not support a feature or misbehaves right now, use a new application variable like @SplitPCM - see [1]. A nice name may be '@OutMix>0dB' or so.
Jaroslav
[1] https://github.com/alsa-project/alsa-ucm-conf/blob/master/ucm2/common/pcm/sp...