07-15-2020, 12:12 AM
(07-14-2020, 04:14 PM)largo Wrote: Hello,
I am pretty new to Rpi and moodeaudio. I tried to summarize and combine different tweaks (thanks to all contributors) to optimize the sound of my Rpi which is connected to an external USB DAC. I have get a pretty good sound with these tweaks and settings:
1 – isolating procs
added in /boot/cmdline.txt: isolcpus=2,3
sudo pico /lib/systemd/system/mpd.service
CPUSchedulingPolicy=fifo
CPUSchedulingPriority=70
Nice=-16
ExecStart=/usr/bin/taskset -c 2,3 /usr/local/bin/mpd --no-daemon $MPDCONF
2 - config.txt
sudo nano /boot/config.txt
arm_freq=1000
sdram_freq=2000
core_freq=500
gpu_freq=500
over_voltage=-5
over_voltage_sdram=-5
gpu_mem=16
max_usb_current=1
force_turbo=1
initial_turbo=60
avoid_pwm_pll=1
3 - configure moode
SOX 32/352,6 medium
64 bits
This is a first share on my side. May be you can as specialists improve these settings.
Best,
I've seen the tweaks in other posts in SQ. Did you add them sequentially or all at once? What sound improvements do you ascribe to each setting? I have never tried 1 or 2 (don't want to break Moode), but I'm a believer in SoX. Prefer very high quality setting. I've tried medium, and definitely prefer VHQ. I think SoX greatly improves 3D. Previously had RPi3B+ Allo Boss. Now have USB DAC SMSL Sanskrit MkII. Getting pops with SoX. Lose the 3D benefit without SoX. Assuming that I need to upgrade to RPi4.
