Disclaimer : You may or may not hear a difference as sound quality is ‘subjective’. This will not harm your Volumio install, it is only a few small commands to improve kernel latency and increase MPD priority. Latency improvements were adapted from “Red-Hat” kernel tuning documentation.
Improve sound
Create a file in /usr/local/sbin, name it anything you want but with the .sh suffix. For example mine is called dyno.sh
I used nano to create and edit the file.
sudo nano dyno.sh
This creates and opens an empty file with the specified name. I added the below information into the file then ctrl+X to save Y to overwrite and finally ENTER.
After that I changed permissions with sudo chmod 755 dyno.sh
Then go to /etc and insert the path into rc.local.
sudo nano rc.local
Save and close like before then sudo reboot.
Please post your subjective impressions, as I am interested in your personal observations in any change in sound. Others might also benefit.