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USB to I2S 384Khz - DSD Converter

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#661
Hi,

A quick question about using the amanero board with the ES9018: Any of you run the amanero board directly into the ES9018 - without additional microcontrollers or the like? I.e the amanero board has (some) of the features to set-up the ES9018?

Greetings,

Jesper
 
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#664
Hi Domenico,

I received my board today. OS X Audio Midi Setup detected the board just fine. It was my lucky day. I saved $6.50 in HST taxes since Canada Post overlaid their Canada Post Registered Mail sticker overtop the declared value written on the Postitaliane label so they didn't charge taxes when I picked it up. Thanks Canada Post and thank you Domenico for offering this group buy.

Cheers.
 
#666
qusp said:
i'm sticking by my theory, have you measured it as DC or it just sounds like a transient? DC coupled or not, (more likely to come from a glitch than a signal), DC offset is near impossible to be caused with opa1632, though it will reproduce it. I believe its the transition from DSD to PCM.

I guess you are not using the DSD filter setting? are you switching from one to the other?
Click to expand...

What leads me to believe it is a DC issue is:
I also have 'plop' noises during DSD-Playback when I change the volume on my preamp. It is a relais switched resistor volume control.

When relais switch the resistors in and out to signal line, this will cause a transient, when there is DC voltage present. I can not proove that yet, as I haven't measured yet - but it is a strong indicator ?

I do not change any settings in Buffalo-III (dip-switches), it seems to automatically accept either (I2S) PCM or DSD. Hm...will check wiring and configuration of the 8-channels in Buffalo-III DAC, maybe I have something wrong there.
 
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#668
WOW

I'm even more excited now.

Jackal29a said:
Jesper, the Amanero's firmware tool allows to assign I2C commands to events working as some sort of micro controller. They are saved to the boards flash memory and applied automatically each time the event takes place.

This is a capture of the tool's I2C tab:

I2Ctool.jpg
Click to expand...
 
#673
Jackal29a said:
Jesper, the Amanero's firmware tool allows to assign I2C commands to events working as some sort of micro controller. They are saved to the boards flash memory and applied automatically each time the event takes place.

This is a capture of the tool's I2C tab:

I2Ctool.jpg
Click to expand...

I am not sure how this works. Surely I2C control and configuration of external devices such as the Buffalo Sabre chips requires I2C connections to the Bufallo Board and I don't see any I2C connections on the Amanero Board.
Anybody shed some more light on this firmware tool and its use?
 
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