I suggest you delete that file, reboot system and check if you have package pulseaudio-alsa installed
ALSA configuration file asound.conf probably would not work from within PulseAudio system folder. But Manjaro does not need an asound.conf (or ~/.asoundrc) . pulseaudio-alsa creates a file to configure ALSA to use PulseAudio as system default
/etc/alsa/conf.d/99-pulseaudio-default.conf
Default to PulseAudio
pcm.!default {
type pulse
fallback “sysdefault”
hint {
show on
description “Default ALSA Output (currently PulseAudio Sound Server)”
}
}
ctl.!default {
type pulse
fallback “sysdefault”
}
Please post system information
inxi -SMAa
and information about Pulseaudio configuration
pacmd dump && pacmd list-cards