i received mi hifimedy u2 but i can't get it to work.
the app uapp tells me that it can't get enaught power. could try with a hub but then it is not portable enought for me :s
does anybody have an idea.
the dac worked with a note 3.
"Reasons can be that your Android device does not meet the requirements, it does not supply enough power (try a powered hub), the USB audio device is not class-compliant"
https://play.google.com/store/apps/details?id=com.extreamsd.usbaudiorecorderpro&hl=fr
=> "Reasons can be that your Android device does not meet the requirements":
Your Xperia Z can't supply the power required by a connected USB DAC (i.e. 500 mA: max power required by a standard USB DAC according to the USB specification).
A Xperia Z powered by some version of O.S. can drive the FiiO E17, which requires 500 mA: may be the max power is a parameter of the Xperia Z's O.S., and this parameter doesn't always have the same value.
http://forum.xda-developers.com/showpost.php?p=44631728&postcount=3
You should ask the guy who posted the Xperia Z - FiiO E17 compatibility information about the version of Android of his Xperia Z.
=> "the USB audio device is not class-compliant":
The HiFimeDIY U2 is not class-compliant (?): i.e. the HiFimeDIY U2 is not a standard USB DAC, and it requires more than 500 mA (?).
The max power is a parameter of a USB descriptor of a USB DAC.
The USB descriptors of a HiFimeDIY U2 can be read using the free Microsoft USB View:
http://www.ftdichip.com/Support/Utilities.htm
USB descriptors of some USB DAC:
https://drive.google.com/file/d/0B3XYy1FuzDUeZXNUYmF2SG5WNWs/edit?usp=sharing
could try with a hub but then it is not portable enought for me :s
A portable "non-powered" hub:
http://www.ebay.com/itm/USB-2-0-90-degree-angled-male-to-2-female-extension-data-hub-rainbow-color-cable-/111116825157?
http://www.head-fi.org/t/682222/ios7-iphone-and-apple-cck/360#post_10324208
the dac worked with a note 3.
Does the HiFimeDIY U2 work with the Galaxy Note 3 with and without UAPP?
Thanks.