Raspberry Pi 3 + MPD 0.19.13-dsd

[klassikmann]

[thanhvo31]

Hi,
I got the same setup with you and try to find the way to activate so call Native DSD

But the issue is not come from player, it comes from the DAC.

Looking the text here
TEAC's new UD-501 is the star of the 501 series. The UD-501 supports Direct Stream Digital (DSD) playback at either 2.8 MHz or 5.6MHz (DXD) rates. PCM audio is supported up to 384kHz/32-bit resolution. It connects to your computer over USB using ASIO 2.1 or DoP.
You need ASIO 2.1 Driver where as Interface support is normally restricted to Microsoft Windows.

Further, I could not recognize Native DSD vs DoP playback with blind test.

So be happy with the Pi and Rune.

[klassikmann]

Hello thanhvo31,

> So be happy with the Pi and Rune
I am happy with my DAC + Pi + Rune
As I wrote, it is a unimportant issue.

> Further, I could not recognize Native DSD vs DoP playback with blind test.
No surprise, because "DSD native" and "DOP" are bitwise identical for the DAC. DOP is packaging of DSD in PCM-frames, only.
It could be more important if DSD256 will become familiar in the future, because (AFAIK) DOP can be used for DSD64 and DSD128, only.

> You need ASIO 2.1 Driver where as Interface support is normally restricted to Microsoft Windows.
I do not believe so, but I can be wrong.
My hypothesis:
"Native DSD" is not bound to Windows with ASIO 2.1/2.2 driver. There are solutions for Linux. You need
1. ALSA lib >= 1.0.28 (o.k. in Rune)

2. MPD with "native DSD"-patch (o.k. in Rune)

3. DAC-specific "quirk" code (availabe/unavailable for TEAC UD-501?)
If you have look at https://github.com/lintweaker/xmos-native-dsd you see that adaptations are availabe for some DACs. Such an adaptation is product-specific coding in sound/usb/quirks.c (alsa-lib).

But that's my hypothesis, only.

[hondagx35]

[thanhvo31]

[klassikmann]

I contacted the author of mpd-usb (MPD patches) and xmos-native-dsd (kernel quirks).
On https://github.com/lintweaker/xmos-nati ... hes/kernel he provided an "Experimental support for TEAC UD-501". I try to build a new kernel on my Ubuntu 16.04 AMD64. If I succeed and if testing of the quirk is promising than we should discuss with Frank (hondagx35) about a potential inclusion into runeaudio.

Herbert

[thanhvo31]

[klassikmann]

[klassikmann]

[ericszeto]

Hi All,

May I know how can I install the "0001-Add-native-DSD-support-to-MPD-0.19.14.patch"?

Many many thank you.

Regards,

Eric