ES 9028Q2M->dtoverlay Raspberry Pi->config.txt

for this ES9028Q2M:

the working dtoverlay in config.txt is fortunately again (Raspberry Pi+DietPi+other):
hifiberry-dac -> (in config.txt): dtoverlay=hifiberry-dac
up to 384khz with no problem..
(rpi-dac works too, but as said limited to 192khz)

Hint for squeezelite-command-line options (also in picoreplayer->squeezelite-settings): try to use 24 (bit) and mmap on (1)..
(on this board 16 (Bit) causes only a heavy distorted noise/very often/almost in every case, beware !!))
PiCorePlayer->„in Picoreplayer you have to change from „simple/generic es9023“ (es9018k2m) to „ES9023“ (without anything)->up to 384khz;
(also had problems playing in 16bit->distorted noise; so try to use 24 oder 32 bit in „ALSA-Params“)
RPI-Dac was also possible in picoreplayer (but only up to 192khz)“

link+further description here:

ES 9018K2M->dtoverlay Raspberry Pi->config.txt

for this ES9018K2M:

the only working dtoverlay in config.txt (Raspberry Pi+DietPi+other) is:
rpi-dac -> (in config.txt): dtoverlay=rpi-dac
and though, its unfortunately limited to 192khz !!
there is no other dtoverlay that works without distortion for this board..(searched and demanded it for weeks, no success)

But after a lot of research its possible to get 384khz on this board to work with->PiCorePlayer !!
Description->„try picoreplayer->audio-options->use „Generic/simple es9023″->advanced->“Audio Card Control“->check „dt-overlay parameters 384k“..
let „onboard soundcard“ enabled (had problems with it changing, but try your luck“)->check the output with->sudo cat /proc/asound/card1/pcm0p/sub0/hw_params (or ../card0/.. if u unchecked onboard sound device)..
additionally change upsample setting to „X“ (upsample to max device capacity) and set alsa settings->sample format to 24 (had problems with 32)
so you´re done !!!“

link+further description here:

Best audio distros for the Raspberry Pi (3)


first here a little list (all my taste+opinion naturellement):

1.DietPi -> -> for me the best,“smoothest“ audio distro, because its absolut leightweight and in my opinion with the best sound

2.PiCorePlayer -> -> if Dietpi is 90% than this is 80%; very good and slim also, but for me a little bit „metallic“ sound

then a long time nothing 😉

3. Moode-Audio Player -> ->70 %

4. then there were a lot of of leightweight-Distros like Daylight-linux etc..->also good sound 65% (also maybe Pipplware)

5. Volumio, Max2Play and such things->60%