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Chinese ES9038Q2M DAC Board I2S Drive
Chinese ES9038Q2M DAC Board I2S Drive
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Old 19th May 2018, 01:04 PM   #1
eslei is offline eslei  New Zealand
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Join Date: Jul 2011
Default Chinese ES9038Q2M DAC Board I2S Drive

The Chinese ES9038Q2M DAC board ES9038 Q2M DAC DSD Decoder Support IIS DSD 384KHz Coaxial Fiber DOP | eBay now the newest version is on 1.07.



Personally I used the earlier version with raspberry pi 3B for almost one year. the performance of this board is outstanding, i feel direct connecting to I2S works the best. there's still no consensus as to what Music Player and which drive is the best choice. At the moment Volumio2 and the ES9028Q2M plugin Forum Audiophonics.fr • Consulter le sujet - Volumio 2 Installation Plugin ES9028Q2M Volume Hardware seems a good solution in the meantime.

Direct DSD and DSD over PCM are both not supported yet for I2S. the following waveform is a study of the PCM formats on Volumio OS.

Click the image to open in full size.

Click the image to open in full size.

9028Q2M plugin doesn't play at 16/44.1, with output noise only at right channel.

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Click the image to open in full size.

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The generic I2S DAC and hifiberry-dac drivers don't work either, with the
same symptom.

Click the image to open in full size.

Click the image to open in full size.

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Click the image to open in full size.

Rpi-DAC driver is ok but converts to 32bit at the background. Volumio playback ui for all those drivers show 16/44.1. 9028Q2M plugin plays ok when switch on resampling and select 24 bit, but it also converts to 32bit at the background.
Attached Images
File Type: jpg 902801.jpg (735.9 KB, 359 views)
File Type: jpg 902804.jpg (784.2 KB, 356 views)
File Type: jpg Generic I2S DAC01.jpg (739.5 KB, 356 views)
File Type: jpg Generic I2S DAC02.jpg (781.3 KB, 357 views)
File Type: jpg hifiberry-dac01.jpg (783.6 KB, 354 views)
File Type: jpg hifiberry-dac02.jpg (777.4 KB, 346 views)
File Type: jpg Rpi-DAC01.jpg (699.0 KB, 349 views)
File Type: jpg Rpi-DAC05.jpg (938.7 KB, 354 views)
File Type: jpg 902803.jpg (647.4 KB, 348 views)
File Type: jpg 902805.jpg (941.6 KB, 348 views)

Last edited by eslei; 19th May 2018 at 08:21 PM.
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Old 19th May 2018, 01:21 PM   #2
tubesguy is offline tubesguy  United States
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Join Date: May 2002
Location: Madison, WI
Ugh! Pictures are much too big and need to be resized.
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Old 19th May 2018, 08:41 PM   #3
eslei is offline eslei  New Zealand
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Join Date: Jul 2011
sorry about the odd size images, i don't know what happened, they are all the same size when uploaded. i tried to edit the post by deleting 1st image, it's all good now but i can't edit it again, maybe i need to wait. thanks
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Old 19th May 2018, 09:27 PM   #4
eslei is offline eslei  New Zealand
diyAudio Member
 
Join Date: Jul 2011
Chinese ES9038Q2M DAC Board I2S Drive-248801-jpg

Chinese ES9038Q2M DAC Board I2S Drive-248805-jpg

For 24/88.2, all 4 drivers play, but converts to 32bit at the background. Volumio playback ui all show 24/88.2.

Chinese ES9038Q2M DAC Board I2S Drive-249601-jpg

Chinese ES9038Q2M DAC Board I2S Drive-249605-jpg

For 24/96, all 4 drivers play, but convert to 32bit at the background. Volumio playback ui all show 32/96.

Chinese ES9038Q2M DAC Board I2S Drive-2435201-jpg

Chinese ES9038Q2M DAC Board I2S Drive-map011-jpg

Chinese ES9038Q2M DAC Board I2S Drive-map014-jpg

Chinese ES9038Q2M DAC Board I2S Drive-3235201-jpg

Chinese ES9038Q2M DAC Board I2S Drive-3235204-jpg

For 24/352.8, all 4 drivers play. Generic I2S DAC, Rpi-DAC, and hifiberry-dac drivers convert to 32/192. 9028Q2M plugin keeps it at 352.8 converted to 32bit. Volumio playback ui shows 32/352.8 for all these drivers, so it seems deceiving.

Runeaudio player hasn't been updated for a few years so i stopped using it for a long time.

Does Volumio convert every PCM formats to 32bit? Is the 9028Q2M plugin the best driver for this Chinese ES9038Q2M DAC Board at the moment? Any comments, suggestions, and solutions are appreciated.
Attached Images
File Type: jpg 248801.jpg (808.0 KB, 324 views)
File Type: jpg 248805.jpg (804.9 KB, 323 views)
File Type: jpg 249601.jpg (674.8 KB, 321 views)
File Type: jpg 249605.jpg (815.1 KB, 322 views)
File Type: jpg 2435201.jpg (769.5 KB, 320 views)
File Type: jpg MAP011.jpg (784.4 KB, 321 views)
File Type: jpg MAP014.jpg (776.8 KB, 320 views)
File Type: jpg 3235201.jpg (793.6 KB, 316 views)
File Type: jpg 3235204.jpg (399.8 KB, 317 views)
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