[Voyage-linux] mpd.conf and DSD files

[Kim-man 'Punky' TSE]

Hi,

Please down grade to below mpd version and test again.

http://www.voyage.hk/dists/experimental/mpd/mpd_0.18.0git20130624-1_i386.deb

I did not test 0.18.4 for DSD functions.

One more question, where does your music files reside?

Regards,
Punky

On 11/29/2013 6:17 AM, Linefader wrote:
> I just completed the required setup to get DSD playback to work on my system.
> I am using an old laptop (HP, Pentium M) running Fedora 19 and a Mytek
> Stereo 192 DSD DAC.
> I also have other computers but I'ld prefer to use that old Fedora laptop as
> my music server since I don't need it for any other purpose (thus, it can
> reside at the stereo system all the time).
>
> Principally everything works fine with that setup: I am using MPD (version
> 0.18.4) on the server and several clients (Theremin on the Mac, MPoD on the
> iPhone etc.) to control the music. However, when I play high-resolution
> files (Flac > 96 kHz or DSD) after about 1 minute there are glitches and
> dropouts.
>
> I already googled a lot on USB-dropouts and made the following plan, of what
> I'll try to do next weekend:
>
> 1) disconnect all other devices that are connected via USB to my laptop,
> such that only the Mytek uses the USB
> 2) plug a 2000mA-powered USB hub in between the laptop and the Mytek
> 3) increase the process priority of the music player (e.g. via "nice -n 10
> mpd" on the command line) to keep it save from being interrupted by screen
> savers and the like
> 4) play with the buffering options (e.g. by putting period_size=50000 into
> mpd.conf - maybe someone has some more ideas here? What are good values for
> the audio_buffer_size and the buffer_before_play parameter?)
> 5) run some diognosys tools (http://wiki.winehq.org/MeasuringAudioLatency )
> to check if there are DPC Spikes (if I find them: shouldn't the above two
> solutions solve this issue?)
> 6) run 'dmesg | less' to check whether there are enlightening log messages
> during the dropouts
> 7) upgrade the RAM of the laptop by plugging in new DDRs (the laptop has
> only 512 MB, but any DSF/DFF/FLAC file I tried should fit completely in
> there)
>
> Do you have more ideas, what I could try?
>
>
>
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>
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-- 
Regards,
Kim-man "Punky" Tse

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