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AudioLinux and NUC Troubleshooting and Tuning


rickca
Message added by austinpop

Summary of useful findings and recommendations

 

This section will be a living repository of useful info from this thread. It's very similar to a wiki and will be maintained by a small group of thread moderators.

 

Before you get started please refer to the Audio-Linux website to ensure you have the latest info and the proper versions of the OS. Audio-Linux.com  

 

**** Updated for AL 1.30 menu 118 or later.

 

  "First Run" setup for headless.  

 

Setup your NUC with a keyboard, mouse, and monitor to the NUC BIOS settings.  From the menu note the IP address of the machine to SSH into.  From a MAC the macOS terminal program supports SSH:

324537708_ScreenShot2019-01-28at3_02_19PM.thumb.png.739dc7f9cdb05e04da806c7c66877332.png

 

Then it is simpler to cut and paste into the terminal session. After entering the password for the audiolinuxuser you will be presented with the AL headless menu:

 

1518375894_ScreenShot2019-01-28at3_04_18PM.thumb.png.a7b2867a163f8f014e56e52ff69f94b4.png

 

Option 8 takes you to the command line for the following basic setup.  You will need to be the Root user for this setup and the su command first:

 

su

 

Fix the time zone:  (this is my timezone - look in directory /usr/share/zoneinfo)

 

timedatectl set-timezone America/Chicago
 

Setup and Start NTP daemon (to keep the system time in sync)

 

*** the config file is now properly filled in.

 

Now Start the daemon

 

timedatectl set-ntp true

 

 

NOTE: Sometimes the system takes a little while to get synced up.
 

Set hostname  (this provides a unique name for the machine on your network.  Replace <NAME> with your chosen name)

 

hostnamectl set-hostname <NAME> 
 

Once the above items are set up your machine is ready to be configured for say a Roon bridge/endpoint. That is done using the AL menu.  To return to the menu do the following commands.

 

exit

menu

 

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

 

For most of us, the following basic settings are key.

From the configuration menu:

6. START and enable Roonbridge

15. SET Realtime Priority to extreme

16. ENABLE ramroot (reboot after)

 

Return to the main menu and reboot the NUC using 

 

11 Reboot

 

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

Roon Server setup is a bit more complex and we will cover it completely a bit later.  The key is where you are booting from and where the Roon database is stored.  In general; say a 32gb OPTANE "SSD".

 

  • You have to partition the SSD into a boot drive and a storage drive.  
  • The transfer the USB stick install to the boot partition.  
  • Reboot from the boot partition.  
  • Do the basic setup. Timezone and name
  • Transfer the Roon Database to the storage drive
  • Start the Roon Server
  • .....

 

----------------- 

The machine will reboot and from the display attached to the NUC you can watch it boot up and load into RAM.  Once the AudioLinux menu is showing the endpoint should be available in Roon.    This completes the basic startup sequence.  The system is ready to start testing.    

 

 

Recommended Posts

1 hour ago, davide256 said:

After playing with it every which way I could for PS/BIOS config/ AL config, I'm not finding that the NUC7PJYH  can be my final destination for a Roon endpoint.

 

While its detailed and clean with AL, even better so than microRendu, its not matching up to overclocked RPI3B+/AL for midrange bloom and for reach/impact with low bass.

As a tuba player, I'm sensitive to muddy bass, the RPI3B+ doesn't suffer at all here, just has issues with cymbals and other complex high frequencies. The NUC7PJYH

in contrast makes me grit my teeth when low bass percussion is happening.

 

What really hit me hard was playing a random track, Elvis Presley's "Suspicious minds", the  NUC/AL  made it sound lifeless/AM radio fodder, whereas the RPI/AL  brought it to life, showed nuance and expression.

 

Before you give up on it, try it with Intel SpeedStep off.

 

I was much more impressed once it was running with SpeedStep off. 

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  • 5 weeks later...
2 hours ago, BigAlMc said:

Meantime quick question. I noticed almost by accident that high res music is playing as 48/16 on my Directstreams screen.

 

When I look at the Signal path in Roon it shows FLAC 96/24 2ch

 

Is this a limitation in SqueezeLite that it only does up to redbook or am I missing a setting somewhere?

Are you choosing the correct output device when you start squeezelite?

 

Do a squeezelite -l command to see the available output devices.

 

If I don't specify front (see below), I get 48 for everything.  I start squeezelite by typing squeezelite -o front &.

 

 

1153779837_ScreenShot2019-01-05at9_34_06AM.thumb.png.abf4ed83309cb9504d53473b7768b8e1.png

 

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