after listening for days through this super phenomenal Skysong-XMOS-USB-ES9018K2M-Combo (a really hifi-upgrade by 10-15%) i came back to my STM32F103-„Bluepill“/Arduino project to build your own DAC/display audio-parameter (Input,sample-frequency and so on)..
and i knew there was already such a project and it was !!!!
its the HiFi-Duino-TFT-Project on http://www.dimdim.gr/arduino/tft-hifiduino-code/ !!! (based on the famous/original HiFi-Duino-project/code; is well known)
and here->Universal USB to I2S Interface Indicator->http://www.dimdim.gr/arduino/universal-usb-to-i2s-interface-indicator/
after reading the documentation about it, our „F0,F1,F2,F3,DSD-on etc“-schematics became a really new sense->they were already used by this above mentioned code for example and also in conjunction with the Anamero-Combo-boards..look here->
the code looks like this->
// —————————- Amanero ——————————————————————————
* I1 = F0
* I2 = F1
* I3 = F2
* I4 = F3
* I5 = DSD_ON
* I6 = DSD 64 or 128
// Check for PCM or DSD
if (digitalRead(I5) == false) // PCM detected
type = 0;
if (digitalRead(I1) == false && digitalRead(I2) == false && digitalRead(I3) == false && digitalRead(I4) == false)
SR = 32;
else if (digitalRead(I1) == true && digitalRead(I2) == false && digitalRead(I3) == true && digitalRead(I4) == false)
SR = 176.4;
else if (digitalRead(I1) == true && digitalRead(I2) == true && digitalRead(I3) == true && digitalRead(I4) == false)
SR = 352.8;
else if (digitalRead(I1) == false && digitalRead(I2) == false && digitalRead(I3) == false && digitalRead(I4) == true)
SR = 384;
and so on !! burner 😉 ..
you can get the sketch here->Link or via the forum (http://essabre-90xx-rpi.sfb2.com/forum/); i will upload it there later too..
so to see, the absolute breakthrough i would say 😉
but this are only „teaser“; for me its absolute to complicated right now/at present and i don´t know if i continue to „walk on this way“/have the time for it in the near future but for introduction..
greets for now 😉
first, i must say: „Unbelievable“ 😉
(first impressions after arrival:„looks very neat and very well manufactured !!“)
hadnt expected so much; just wanted to uprade my PC-soundcard a little bit (Asus Xonar DX) and get rid of those horrible clicks/pops on the raspberry pi..
use now my „ES9018K2M“ cause i dont wanted to f*** up my raspberry-setting with the ES9028Q2M..
and now i know what i already knew 😉 , that the ES9018K2M were already „High-End“ in the right circumstances/surroundings..(and they were implemented on these/our „cheap“ chinese-boards with low-quality components !!)
i also read somewhere that our lovely chinese-boards were specially designed for XMOS-USB devices; don´t know if its true but i can confirm that it is almost unbelievable what i now hear here ;-)..
so „dry“, such a lot of details, spaciousness, so less latency..
(it really upgraded my hifi-gear by 10-15%, and i have here a Cambridge Audio-Amp and Mission Cyrus Speaker)
okay, use now the standard-Win10-driver; had problems with Win8..
„Krunoslav Kovacic“ send us fortunately the driver for the Skysong/Singxer for DSD on Win10 (hadnt test it yet by myself) and moved it also to the forum..(and some „standard“-driver)..->http://essabre-90xx-rpi.sfb2.com/forum
it says „XMOS USB Device“ and „Skysong DFU“ in the device-manager..absolut no hassle or problems while installing..
u can select up to „24bit/384khz“ in the audio-properties->(see picture)
VLC-player plays 192khz but no more; Windows Test works with 384khz..
use now here JRiver („XMOS USB Audio-WASAPI“) will test then foobar, ASIO etc..
(and this is all on a PC; hadnt started the whole Raspberry/Dietpi/Moode-thing right now 😉 ..)
Conclusion (for the moment): absolutely super to recommend !!->47$/39€ inkl. shipping (23 !! days to deliver from this seller)
its very,very sad, but „Fourdee“ over at DietPi decided to go back to RPI-stock-kernel means no more enhancements/improvements in 384khz-playback in Linux/RPI-kernels (for our lovely chinese ES90xx-Boards via I2S) ;-(
thats really,really sad because in the earlier Versions of Dietpi (i guess till V1.54) it was the only RPI-audio-distro which sounds really good (Best !!) with at that time the ES9023 (dtoverlay=hifiberry-dac)+ES9018K2M at 384khz with no prob played via MPD..
u could change the sample-frequency via their wonderful „Dietpi-Boom“-Gui..;-(
Text on the Github-Page->Link:
„I’ve taken the decision to revert our DietPi RPi kernel to stock RPi kernel.
Currently the only difference in our kernel was:
DSD pop prevention on initial playback.
We simply do not have the man power and available time, to ensure this is updated regularly with requested patches. Time we can use to focus on supporting bug fixes and improvements for DietPi.
In future, all RPi kernel patch requests should be made directly to the RPi foundation, who have paid employees dedicated to that specific task:
This will ensure all RPi users will benefit from the requested fix, if accepted by the kernel maintainers.
I apologise if this effects audiophile users, however, I hope we have your understanding for this change.“
so, we have to look now for alternatives, cause as said DietPi has for me the best „sound“ of all (audio-)-distros for the RPI (guess it was because of the lightweight-design (less processes,less distortion))
1. Moode ->Link… now at V4.0Beta12..has also canceled their RT-/advanced-kernel thingy..(all concerning the support of our lovely chinese ES9023,ES9018K2M,ES9028Q2M and ES9038Q2M-boards via I2S)->hope they will invent it again..
2. Volumio ->Link (now at V2.348)… found it really horrible at the beginning but meanwhile its much better..absolute easy to use; almost no pops,clicks, and a very relaxed/easy use (try it again 😉 ) but now also not with full 384khz support for our boards via I2S..
3. Picoreplayer ->Link.. now at pCP3.22 (27.Sep.2017)->absolute 384khz-capable (look at the other posts), but not so comfortable..
these 3 were my choice after i tested a lot of other audio-distros for the RPI at the beginnung with our ES-Sabre-Boards(there were a lot more, Daphne, Rasp-something, Runeaudio etc..but the above were the best/most comfortable imo)
if u mean u know another good audio-distro (comfortable, easy to use, 384khz) please leave a comment here !! (and we can move it maybe to the forum->http://essabre-90xx-rpi.sfb2.com/forum/)
thought about the power supply (+15V or +/- 15V) for the ES9038Q2M (or the other Chinese-Boards, its basically the same); my bought,“normal“ 220V adjustable power supply has only 12V DC max and so i thought about another way; had a month ago a power supply for a Thinkpad T43, 19V i think, was sold and got today a HP power supply (for some printer)->32V..
2 (4) possibilities: either u buy directly a power supply from amazon/ebay/aliexpress->3$ and up
or use an old, unneeded one, like this HP one for printer for example, or laptop or something and buy a cheap „Step Down Power Regulator/Module“ from Aliexpress (of about 1,50$ and up)-> https://de.aliexpress.com/item/1pcs-5A-High-power-75W-DC-DC-adjustable-step-down-module-LED-Voltmeter-Power-supply-module/32688669737.html
Input Voltage (this modul) 4-38V DC
Output Voltage 1,25-36V DC
Ampere max. 4A..
i read elsewhere that the ES9038Q2M only needs about ca. 500mA..so normal laptop or printer power supplies should be enough (this HP power supply has 625mA)
cut off the plug, and so u have your 2 wires to connect to your power step down module (or directly), adjust the right output voltage and wire it with 2 lines/cable up to the ES9038Q2M; easy as this 😉
(BUT, soundwise its really,really better to use a toroidal dual 15V transformer like this (25$)-> https://de.aliexpress.com/item/115-V-230-V-30-Watt-R-typ-transformatoren-Dual-15-V-Dual-6-V-ausgang/32833217523.html)
(or the ultimate HiFi-High End choice would be a „battery-pack“; for example a bike-battery 😉 😉 (12$+charger)
but for the „cheap“-beginning the above choice should be enough.. 😉
hi there, 😉
came by chance about this „Forum-Idea“; its absolutely Beta and looks horrible (just a test if it will be accepted)..
One advantage is that u dont have to be registered; but you can also post/open a thread..
lets see if it will work out..
(Categories are (for now): ES9038Q2M, ES9028Q2M, ES9018K2M, Hifi-Dacs, STM32F103C8T6, RPI 3B, Drivers, etc..)(more maybe to come))
(http://essabre-90xx-rpi.sfb2.com/forum/) (theres also a link in the header)
(PS.: but beware, u have probably to „unsolder“ 2 jumper/bridges..depends on you delivered version (+15V/-15V or only +15V) )
„Sat in your „lab““ 😉
(an allusion to Kate Bushs „Sat in your lap“) 😉