control pulseaudio volume with mpd?

[seancmalloy]

is it possible to control pulseaudio volume with mpd? when i enable volume control in mpd (mixer_type software in alsa) i have to set pulseaudio volume to 100% (or actual volume too low) but its seems to degrade quality of audio. is there an alternative to using software mixer? whats the best way to control volume (and EQ)?

environment:

raspi4 - debian 11
mpd - 0.22.6
outputs - alsa, https, icecast, and pulse raop (up2stream/airplay default sink)
pulseaudio - 16.99.1
mympd - 11.0.2-1

[MaxKellermann]

Yes, there's the PulseAudio mixer plugin that acts as a "hardware" mixer.

[seancmalloy]

thanks for response

when i try to add hardware mixer_type it shows volume control is disabled.

audio_output {
type "pulse"
name "Up2stream"
sink "raop_output.SoundSystem_20A5-2.local"
format "44100:16:2"
mixer_type "hardware"
}

is this the plugin that you are talking about?

[MaxKellermann]

I don't know what this message means, I have never seen this client. What I see, however, is that you have an ancient unsupported MPD version.
Check https://www.musicpd.org/help/

[seancmalloy]

its mympd. ive been going back and forth between git build v0.23.13-792-gba2df05fb and mpd 0.22.6 (bullseye). either way mixer_type hardware in pulse output doesnt control pulse volume, which is the goal.

but i assume that this is not possible, and the mpd volume plugin just adjust volume based on pulseaudio volume, ie - if pulse is set at 50% and mpd is set to 50% its actual 25% volume

am i wrong?

[jcorporation]

myMPD reports "Volumecontrol disabled", if the status or getvol command reports no volume. This usually appears if there is no valid mixer configured.