For those, who still enjoy (that includes me) the LogitechMediaServer and the related squeeze universe.

Revision 7.8.0 has been made available. (Building 7.8.0 has taken a couple of years after a more or rather less active development)

Even though announced by Logitech, they officially do not support the LMS7.8.0. Obviously unofficially they support (keep it alive) the server SW to a certain extent at least.
The funny thing: Logitech calls it "1. Community Supported Release".

Beside bugfixes, the most interesting features I find

1. "Add new scanner step to discover new/changed/removed standalone artwork for album covers"

In the past you had to clean and rescan the entire database
to get new cover-arts into the database.
This is IMO a valuable new feature for low-muscle servers, NAS/Arm-board based servers and rather large collections.

2. "Add Triode's LocalFile 'loc' ProtocolHandler support for squeezelite."

Basically you can run squeezelite - the streaming client - (Tridoes baby) on a server without using the
network stack. Now you can run server and client pretty efficient
on the same computer. Basically you just need one box.

Reference: LMS 7.8.0 now avialable

Enjoy.

-----------------------------------------------------------------

blog latest >> The Audio Streaming Series - tuning kit pCP

 RE: LogitechMediaServer 7.8.0 available - Sprezza Tura 15:15:45 04/27/14 (2)
 RE: LogitechMediaServer 7.8.0 available - PaulN 22:03:00 04/27/14 (1)
 RE: LogitechMediaServer 7.8.0 available - Sprezza Tura 22:06:27 04/27/14 (0)

...

Show full thread outline!

 RE: LogitechMediaServer 7.8.0 available - Sprezza Tura 15:15:45 04/27/14 (2)
 RE: LogitechMediaServer 7.8.0 available - PaulN 22:03:00 04/27/14 (1)
 RE: LogitechMediaServer 7.8.0 available - Sprezza Tura 22:06:27 04/27/14 (0)
 Thank you!!! - tcell 13:36:22 04/22/14 (0)
 RE: LogitechMediaServer 7.8.0 available - Sprezza Tura 09:14:34 04/22/14 (7)
 RE: LogitechMediaServer 7.8.0 available - soundchekk 10:58:25 04/22/14 (6)
 RE: LogitechMediaServer 7.8.0 available - Sprezza Tura 12:41:22 04/22/14 (4)
 RE: LogitechMediaServer 7.8.0 available - soundchekk 01:05:06 04/23/14 (3)
 RE: LogitechMediaServer 7.8.0 available - PaulN 19:12:16 04/23/14 (0)
 RE: LogitechMediaServer 7.8.0 available - Sprezza Tura 08:22:50 04/23/14 (1)
 RE: LogitechMediaServer 7.8.0 available - soundchekk 08:35:38 04/23/14 (0)
 RE: LogitechMediaServer 7.8.0 available - Sprezza Tura 12:02:14 04/22/14 (0)

First time I tried DSD on LMS and squeezelite myself.

I compiled the latest squeezelite-git (1.6.1) and ran it against LMS 7.9.0.

squeezlite needs to be compiled with cflags "OPTS=-DDSD ; export OPTS"

This way squeezelite -h will show a -D option and under Codecs -c you'll also find dsd. Premade squeezelite binaries (Rev 1.5) are also compiled with DSD support. I havn't checked them out though.

DoP will be enabled with "-D" option at squeezelite startup. The server then realizes that there is a DSD capable player connected.

7.9.0 seemed to have recognized the DSD128 files by default during the initial scan. I haven't applied any specific configurations.

TestEnv:
OPUS 3 DSD Showcase DSD128 .dsf tracks, on my TEAC UD-501 (hooked up locally to my server) feeding my Adam A5X.
My server runs Ubuntu Server-14.04 (just released), a 3.13 kernel and LMS 7.9.0.-beta-daily from 04/22/14

Result: It works. Quite nice.

There seem to be different options to

1. run DSD2PCM (converts DSD to native PCM -- server plugin?? (Haven't checked yet how this can be accomplished). This feature would be required for
DACs without DSD support and would probably go hand in hand with a sample rate converter.

2. DSD2DoP (puts DSD into PCM/flac framework). This mode seemed to work
out of the box on my .dsf files.

Note:

If you run DoP, your squeezelite player SW volume control will be locked automatically at 100% (you can move the slider, but nothing is gonna happen). The lock needs to be in place to avoid data corruption of the DoP (fake PCM) stream. Keep in mind: You need to have an analog volume control in place !!! Otherwise you might blow up your speakers (and ears) .

Very important:
A DoP stream needs to be delivered "bit-perfect" to the DAC. If you have any resampler, digital volumecontrol, dsp, pulseaudio, asf, in the chain you have to turn that feature off.

.
.
.

LMS and DSD. Had it on my action list for a while. Now it's ticked Off.

THX to those highly motivated folks who made this happen -- all free of charge.

Back to the real stuff -- 44.1/16 - straight PCM . ;)

Good luck. Enjoy.

###################################################################
LinuxDeviceLog:

The DSD128 data are sent to the UD-501 DAC at samplerate 352.800.

#cat /proc/asound/card1/pcm0p/sub0/hw_params
access: MMAP_INTERLEAVED
format: S32_LE
subformat: STD
channels: 2
rate: 352800 (352800/1)
period_size: 10000
buffer_size: 40000

-----------------------------------------------------------------

blog latest >> The Audio Streaming Series - tuning kit pCP

• Sonore