(01-28-2021, 04:09 PM)WuBai Wrote: I have tried MANY tweaks with Moode 7 and have spent days trying different combinations. After all was said and done, I have to admit that standard Moode 7 sounds excellent. I made a lot of tweaks to 6.7 and Moode 7.01 sound just as good as 6.7 WITH all of my tweaks.
Ultimately the ONE tweak that I would recommend for Moode 7 would be to isolate CPU cores, but the core numbers DO make a difference (don't want to argue this, if you can't hear a difference then I am jealous of you).
First, make sure that you are set to 32-bit Kernal Architecture under System. Under MPD options, make sure everything is left stock and SoX is turned off. Previously with 6.7 SoX needed to be ON in order to sound good, but Moode 7 sounds better without it now.
Then under SYSTEM go to SSH Term Server and open the Terminal.
Login is Pi and Password is Moodeaudio.
Type in
Sudo Pico /boot/cmdline.txt
add the line: isolcpus=1,3
I add it at the end right before rootwait.
Hit Ctrl-X and save changes by pressing enter.
THEN go to MPD Service
Sudo Pico /lib/systemd/system/mpd.service
Go down to #Launch Params
Add the line: /usr/bin/taskset - c 1,3
So it should look like this: ExecStart=/usr/bin/taskset - c 1,3 /usr/local/bin/mpd -- no - daemon $MPDCONF
Do a CTRL-X and save changes by pressing enter.
Then get out of the terminal and restart the system.
Remember, isolate cores 1 and 3, not 2 and 4. Don't ask me why because I don't know why it sounds different, but it is very subtle.
-Allen
This will only serve to make your Raspberry Pi generally perform a bit worse, CPU scheduling and general operating system settings will have no effect on how PCM data is converted into an analogue signal. Aside from any resampling and eq you may be applying after decoding the only thing that determines how your music sounds before going into your amplifier is the DAC circuit.
