USB SPDIF Configuration?

[SerbJ]

Yes, as long as there is an I2S driver for that board in the Linux kernel. The list of Hifiberry drivers currently in kernel 6.1.21 is below. I don't know which driver if any is for that particular board. You may want ask Hifiberry.

Code:

pi@moode:~ $ ls -l /boot/overlays/hifiberry*
-rwxr-xr-x 1 root root 2070 Apr  5  2023 /boot/overlays/hifiberry-amp100.dtbo
-rwxr-xr-x 1 root root 1456 Apr  5  2023 /boot/overlays/hifiberry-amp3.dtbo
-rwxr-xr-x 1 root root  779 Apr  5  2023 /boot/overlays/hifiberry-amp.dtbo
-rwxr-xr-x 1 root root  655 Apr  5  2023 /boot/overlays/hifiberry-dac.dtbo
-rwxr-xr-x 1 root root 2004 Apr  5  2023 /boot/overlays/hifiberry-dacplusadc.dtbo
-rwxr-xr-x 1 root root 2079 Apr  5  2023 /boot/overlays/hifiberry-dacplusadcpro.dtbo
-rwxr-xr-x 1 root root  699 Apr  5  2023 /boot/overlays/hifiberry-dacplusdsp.dtbo
-rwxr-xr-x 1 root root 1916 Apr  5  2023 /boot/overlays/hifiberry-dacplus.dtbo
-rwxr-xr-x 1 root root 1649 Apr  5  2023 /boot/overlays/hifiberry-dacplushd.dtbo
-rwxr-xr-x 1 root root  959 Apr  5  2023 /boot/overlays/hifiberry-digi.dtbo
-rwxr-xr-x 1 root root 1125 Apr  5  2023 /boot/overlays/hifiberry-digi-pro.dtbo

This thread suggests to use dtoverlay=hifiberry-digi-pro . 
 
I still hope that there is some way to configure the Douk.  It is one of the few (only?) in its price range that allows for powering from seperate supply.      

[SerbJ]

FWIW: I had an unrelated error today. I paused the music while I took a phone call. When I hit play, I got this error:

MPD Error
Failed to open "ALSA Default" (alsa); Error opening ALSA device "_audioout", snd_pcm_hw_params() failed: Protocal error

Pressing play just repeated the above message. It worked fine after a reboot.

[Tim Curtis]

That can happen if the USB device has a bad connection to the Pi. Make sure its a decent quality USB cable and spray contact cleaner on the plugs and ports.

[SerbJ]

That can happen if the USB device has a bad connection to the Pi. Make sure its a decent quality USB cable and spray contact cleaner on the plugs and ports.

Thx.  Just by luck, had ordered a cable this AM.  It is suppose to be here tommorow.

[SerbJ]

Well, I dug around a bit.  I did find a video of someone configuring a Douk U2 (not the pro) for Linux, but not through MoOde.  Apparently, HIFI DSD is the right configuration.  I was wrongly associating the name with DSD output.  Assumed there should be a HIFI PCM configuration.

When I power on the Pi, the PCM light comes on, its more of a default light.  During the Pi boot-up, it switches from PCM to DSD.  When I play a FLAC file, it switches back to PCM, and stays there.  No volume comes out even if set to 100%.  I can swap in the X1 and everything works.  I put the Douk back on the W10 laptop, and it works fine.  

No reply from Douk, yet.

[TheOldPresbyope]

Out of idle curiosity, what do you see if you invoke alsamixer from the command line?

Does it show the HDMI sound card is not muted?

Regards,
Kent

[SerbJ]

Out of idle curiosity, what do you see if you invoke alsamixer from the command line?

Does it show the HDMI sound card is not muted?

Regards,
Kent

Not sure how to get to the command line.  Will I need to hook up a display and keyboard to the Pi?

[TheOldPresbyope]

Out of idle curiosity, what do you see if you invoke alsamixer from the command line?

Does it show the HDMI sound card is not muted?

Regards,
Kent

Not sure how to get to the command line.  Will I need to hook up a display and keyboard to the Pi?

Well, you can, or you can connect via ssh from another computer, but the easiest way is to enable moOde's builr-in web SSH function and then open the SSH terminal.

Go to m>Configure>System, scroll down to Security and look at the settings.

Regards,
Kent

[SerbJ]

Out of idle curiosity, what do you see if you invoke alsamixer from the command line?

Does it show the HDMI sound card is not muted?

Regards,
Kent

Not sure how to get to the command line.  Will I need to hook up a display and keyboard to the Pi?

Well, you can, or you can connect via ssh from another computer, but the easiest way is to enable moOde's builr-in web SSH function and then open the SSH terminal.

Go to m>Configure>System, scroll down to Security and look at the settings.

Regards,
Kent

Thx.   I was able to log in and run it.  It showed:

Card: bcm2835 HDMI 1
Chip: Broadcom Mixer

Not sure if what you wanted to see was under one of the function keys or not.

FWIW: I have the HDMI port set to off in the Moode configuration.  

Now, the odd thing I see, in the login text, it says Audio: Peachtree Audio 24/192 USB Inte, even though I have set the HIFI DSD and rebooted. and Douk is currently attached.

[TheOldPresbyope]

@SerbJ 

I owe you an apology. I had too many browser tabs open and thought I was posting my question to a different thread. Please disregard it.

Regards,
Kent