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Old 11th December 2016, 09:19 PM   #2051
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Join Date: Nov 2011
Location: Firenze
Here it is:
http://updates.volumio.org/bbb/volum...11-bbb.img.zip

I'm looking to find the mpd 0.20 git, but I can't find nor on github nor on musicpd git...
Any hint would be greatly appreciated
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Old 11th December 2016, 09:19 PM   #2052
Mull3t is offline Mull3t  United States
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Location: Gamehendge
Quote:
Originally Posted by miero View Post
Yes, please try to change the dtb=... line in the /boot/uEnv.txt of Sancloud BBB to dtb=am335x-sancloud-bbe.dtb
Maybe I'm misunderstanding, but if I use the sancloud based dtb then wouldn't I disable the botic driver? That is not my intention.
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Old 11th December 2016, 09:22 PM   #2053
twluke is offline twluke  Japan
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Quote:
Originally Posted by mikelangeloz View Post
@twluke
Ok, that makes sense... I was waiting for mpd 0.20...
Do you have a link for the sources? I will build like... now!
Hi mikelangeloz, I like your Volumio. The source is from the GitHub mirror:
https://github.com/MaxKellermann/MPD

Regards,
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Old 11th December 2016, 09:27 PM   #2054
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@twluke, thanks did not notice this was the long awaited 0.20 version...
Do you consider it as fairly stable?

And thanks for your compliment! If you have feedbacks let me know !
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Old 11th December 2016, 09:58 PM   #2055
twluke is offline twluke  Japan
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Quote:
Originally Posted by mikelangeloz View Post
Do you consider it as fairly stable?
As of this writing, it's been quite stable in playing PCM and DSD sources, though only for a day.

To check playability for high sampling DSD, you might want to try these sources:
http://www.tophifi.it/ftp/packages/Amanero/out.dsf
http://www.diyinhk.com/support/DSDTestTone.rar

Regards,
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Old 12th December 2016, 05:33 AM   #2056
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New mpd compiled and up...
However can't get DSD out of my USB DAC (XMOS2 receiver and direct dsd enabled).
Did you set something specific in mpd.conf ?
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Old 12th December 2016, 07:48 AM   #2057
twluke is offline twluke  Japan
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Quote:
Originally Posted by mikelangeloz View Post
New mpd compiled and up...
However can't get DSD out of my USB DAC (XMOS2 receiver and direct dsd enabled).
Did you set something specific in mpd.conf ?
Hi mikelangeloz,

My MPD configuration is basically adjusted to the I2S connection to the Buffalo 3 and 3SE DACs via either Botic/Hermes-BBB/Cronus or via the USB-I2S connection using Amanero Combo384. Though I'm not using XMOS2, the failure in DSD play after enabling direct dsd may suggest that your current setting is not consistent with playing the source with a native DSD mode. If this is the case, you'll need enabling DoP connection.

In that occasion, playing DSD512 will be impossible and up to DSD256 will be maximum in the current linux USB audio. In fact, my Amanero board with USB-I2S connection on Botic system is only playing DSD up to 256fs with the latest Amanero's firmware but no more and the developer is on the way to get higher resolution.

BTW, shown below is my alsa configuration in /etc/mpd.conf:
Code:
audio_output {
        type            "alsa"
        name            "Botic"
        device          "hw:0,0"
        dsd_usb         "no"
        dsd_native      "yes"
        dsd_native_type "3"
#       priority        "FIFO:32" #not supported on mod-0.20
        period_time     "1"
        mixer_type      "software"
#       mixer_device    "default"       # optional
#       mixer_control   "PCM"           # optional
#       mixer_index     "0"             # optional
}
#
audio_output {
        type            "alsa"
        name            "Amanero"
        device          "hw:1,0"
        dsd_usb         "yes"
        dsd_native      "yes"
        dsd_native_type "2"
#       priority        "FIFO:32"
        period_time     "1"
        mixer_type      "software"
#       mixer_device    "default"       # optional
#       mixer_control   "PCM"           # optional
#       mixer_index     "0"             # optional
}
The setting above is based on the mpd.conf included in miero's botic system and is probably deriving from lintweaker's DSD with realtime option setting because he was the main developer of DSD support for mpd. After solution of endianness (BE or LE) in native DSD by mpd-0.20, it appears that he has ceased his work in DSD.

Regards,
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Old 12th December 2016, 09:10 AM   #2058
miero is offline miero  Czech Republic
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Quote:
Originally Posted by Mull3t View Post
Maybe I'm misunderstanding, but if I use the sancloud based dtb then wouldn't I disable the botic driver? That is not my intention.
Please test if it boots properly. Then I'll consider creating an Botic overlay that would fit to all variants Black/Green/Sancloud...
__________________
BeagleBone Black with I2S, DSD and SPDIF interface (Linux driver)
http://bbb.ieero.com/
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Old 12th December 2016, 10:55 AM   #2059
miero is offline miero  Czech Republic
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mikelangeloz: standard alsa in debian stable does not support DSD or high sample rates

I prepared a patched ALSA library, that must be installed before MPD is built:
- Index of /botic/pool/main/a/alsa-lib

In case you want to rebuild also this ALSA library, a updated kernel header /usr/include/sound/asound.h is also needed, that defines DSD formats.
__________________
BeagleBone Black with I2S, DSD and SPDIF interface (Linux driver)
http://bbb.ieero.com/
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Old 12th December 2016, 11:01 AM   #2060
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Location: Firenze
Thank you very much miero!
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