I installed upmpdcli in order to play DSD and PCM files from Audirvana+, which indeed recognizes UpMpd.

Assuming that upmpdcli eventually uses MPD as music player: which version of MPD is used?

I am asking because:
- choosing upmpdcli on the Music Player page cancels the previous choice of MPD version;
- so far I could only play 16bit PCM (higher bitrates just give a loud hiss);
- so far I have not been able to play DSD.

So I would try different MPD versions so that I can eventually play DSD and 24bit PCMfiles.

I could uninstall all MPD versions but one and then assume that upmpdcli is using the remaining one, but thought I'd better ask first.

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Update: DSD files now playing well!

(Question still stands, as PCM maximizes at 16bit.)

[agent_kith]

I installed upmpdcli in order to play DSD and PCM files from Audirvana+, which indeed recognizes UpMpd.

Assuming that upmpdcli eventually uses MPD as music player: which version of MPD is used?

Right now it's always hard coded to use mpd-git. Future releases will be more flexible.
 

(Question still stands, as PCM maximizes at 16bit.) 

Not exactly sure what the loud hiss is. Normally I only get that when it's playing DSD but there is software volume control being applied somewhere. Some suggestions:

1.  Check there all software volume control is set to 100%
   
2. Select mpd-git and play a high res file. does it work?
   

I'm trying to get 1.0.8 released (have trouble uploading because my home internet is too slow). This version has a newer MPD (2.0.15). Hopefully that will help. Try 1.0.8 (when it's available) if the above two troubleshooting steps aren't helping.

Thanks, will try the new fw when I get the chance. Regarding the PCM 24bit problem I found the following on the upmpdcli website:
https://www.lesbonscomptes.com/upmpdcli/upmpdcli-manual.html#_notes_on_the_tidal_interface 
where it says:
You should know that MPD has difficulties with some formats when accessed through HTTP which is how the Media Server transfers the data. Specifically, WAV and AIFF files, especially with samples wider than 16 bits are a frequent source of trouble (because they are little used and little tested for streaming). Support will vary depending on the MPD versions and exactly what input plugins are configured (among ffmpeg, libaudiofile and libsndfile). Often, the same files play just fine locally, it’s the combination of HTTP access and file format which causes problems.

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I upgraded to fw 1.0.8 and now PCM24 bit plays well!
At first DSD dis not play at all, but I just needed to change the streaming mode to DoP, so apparently 1.0.7 was able to do raw DSD, but 1.0.8 only does DoP.
Anyhow, glad that both formats now work, thanks!

[agent_kith]

Good to know it works. Native DSD is always a hard nut to crack. This is more ALSA than MPD I think. Hopefully a newer version of ALSA will improve this down the road.