Hi I've got both left and right channels working of my analog audio jack. The quality is quite good as long as Master audio isn't set above volume 15 - 20 or so.

Toggling DAC or DAC-Reversed in Alsamixer will enable or disable the physical left and right physical speakers of ear buds.

However! On both channels, the left and right software signals are mixed. So if I use "aplay stereo-file.wav", I hear left+right mixed through my separate left ear. Listening to my right earbud, same story: I hear left+right audio mixed.

Please help, I can't even find any snd_ module flags to mess with.

I've no pulseaudio installed on this latest stable server edition of Armbian (Armbian_23.8.3_Orangepi3-lts_jammy_current_6.1.53_minimal.img). Armbianmonitor txt/gzip output is attached.

 

 

root@oranger:/etc/modprobe.d# lsmod | grep -i snd
snd_soc_hdmi_codec     20480  1
snd_soc_ac200          32768  1
snd_soc_simple_card    20480  0
snd_soc_simple_card_utils    24576  1 snd_soc_simple_card
root@oranger:/etc/modprobe.d# modinfo snd_soc_ac200
filename:       /lib/modules/6.6.16-current-sunxi64/kernel/sound/soc/codecs/snd-soc-ac200.ko
license:        GPL
author:         Jernej Skrabec <jernej.skrabec@gmail.com>
description:    X-Powers AC200 Codec Driver
alias:          of:N*T*Cx-powers,ac200-codecC*
alias:          of:N*T*Cx-powers,ac200-codec
depends:        
intree:         Y
name:           snd_soc_ac200
vermagic:       6.6.16-current-sunxi64 SMP mod_unload aarch64
root@oranger:/etc/modprobe.d# uname -a
Linux oranger 6.6.16-current-sunxi64 #2 SMP Fri Feb 23 08:25:28 UTC 2024 aarch64 aarch64 aarch64 GNU/Linux

 

armbianmonitor-output.txt.gz

Tried several /etc/asound.conf upmix settings, no luck. Made absolutely sure my audio jack isn't bridging anything by soldering straight to the board. No luck, I cannot separate the outputs.

 

(no, the loose floating wire on the bottom is not the cause)