[ProtegeManiac]

Diy would be a great idea but I'm not a very hands on person. Can't help u on that. Sorry

 
Yep I could do it (not as neatly as other people though), the one thing I need to find is a compact TRRS 3.5mm plug. I just don't want to gamble on a Viablue or similar that won't fit through my phone case given how much it will cost to ship over here plus the import fees.

 

[SV_huMMer]

Guys, check this one out - may do your trick:

http://www.amazon.com/Monster-iSoniTalk-Microphone-Headphone-Adapter/dp/B000V8RCTS

Sent from my iPad using Tapatalk HD

 

[thomascrown]

Hi, 
I own a nice hrt music streamer hd and I usually use it connected to my laptop, now having part of my music library on my note 2, I would love  sometimes to use it as source, instead of my laptop. I tried using an otg cable straight from the phone: uapp recognizes the dac, but music reproduction is affected by noises and clicks, so I was wondering, would something like the schiit wyrd help me to use the phone as source for such dac? 
 
Thank you!

 

[head-hi]

  Hi, 
I own a nice hrt music streamer hd and I usually use it connected to my laptop, now having part of my music library on my note 2, I would love  sometimes to use it as source, instead of my laptop. I tried using an otg cable straight from the phone: uapp recognizes the dac, but music reproduction is affected by noises and clicks, so I was wondering, would something like the schiit wyrd help me to use the phone as source for such dac? 
 
Thank you!

If I understand correctly, I believe you would need an OTG cable/external battery combo. The Wyrd is for cleaning a dirty computer USB power issue.

 

[DanBa]

  I have the US version. I'd be surprised if any phone can source 500mA in OTG mode. Most devices can't supply the 100mA and provide a visual warning to the user.
 
http://www.usb.org/developers/onthego/otg1_0.pdf
 
5.1.1 VBUS Output Voltage and Current 
When an A-device is providing power to VBUS on a port, it is required to maintain an output voltage 
(VA_VBUS_OUT) on that port between 4.4 V and 5.25 V, under loads of 0 mA up to the rated per port 
output of the device’s supply (IA_VBUS_OUT min = 8 mA) as long as the rated output of the A-device is 
less than or equal to 100 mA. 
If the current rating per port of the A-device is greater than 100 mA, then the voltage regulation is 
required to be between 4.75 V and 5.25 V, and the A-device is required to meet the USB 2.0 
specification requirements for power providers. 
If the A-device is not capable of providing at least 100 mA on a port, it must be able to detect when VBUS
falls below the value necessary for proper operation of a B-device (VA_VBUS_VLD min). Any voltage 
below VA_VBUS_VLD min shall be detected as a low-voltage condition. 

 
USB OTG phones like Galaxy S3 / Note2 / S4 / Note3 / S5 which can work with an ODAC or a FiiO E17 can provide 500 mA in USB host mode, because 500 mA is the MaxPower required  by an ODAC or a FiiO E17.
 
ODAC
Device Descriptor:
bcdUSB:             0x0110
bDeviceClass:         0x00
bDeviceSubClass:      0x00
bDeviceProtocol:      0x00
bMaxPacketSize0:      0x08 (8)
idVendor:           0x1852
idProduct:          0x7022
bcdDevice:          0x0001
iManufacturer:        0x01
0x0409: "Binary Audio"
iProduct:             0x02
0x0409: "UAC1 DAC"
iSerialNumber:        0x00
bNumConfigurations:   0x01
 
Configuration Descriptor:
wTotalLength:       0x0151
bNumInterfaces:       0x04
bConfigurationValue:  0x01
iConfiguration:       0x00
bmAttributes:         0x80 (Bus Powered )
MaxPower:             0xFA (500 mA)
 
FiiO E17
Device Descriptor:
bcdUSB:             0x0110
bDeviceClass:         0x00
bDeviceSubClass:      0x00
bDeviceProtocol:      0x00
bMaxPacketSize0:      0x08 (8)
idVendor:           0x1852
idProduct:          0x50D0
bcdDevice:          0x0001
iManufacturer:        0x01
0x0409: "FiiO"
iProduct:             0x02
0x0409: "FiiO USB DAC-E17"
iSerialNumber:        0x00
bNumConfigurations:   0x01
 
Configuration Descriptor:
wTotalLength:       0x00EF
bNumInterfaces:       0x03
bConfigurationValue:  0x01
iConfiguration:       0x00
bmAttributes:         0x80 (Bus Powered )
MaxPower:             0xFA (500 mA)

 

[SV_huMMer]

   
USB OTG phones like Galaxy S3 / Note2 / S4 / Note3 / S5 which can work with an ODAC or a FiiO E17 can provide 500 mA in USB host mode, because 500 mA is the MaxPower required  by an ODAC or a FiiO E17.
 
 
 

 
Thanks, DanBa, for illustrating this. I can only confirm that there are phones out there which can provide full-spec USB current, surprising or not

 

[StanD]

   
USB OTG phones like Galaxy S3 / Note2 / S4 / Note3 / S5 which can work with an ODAC or a FiiO E17 can provide 500 mA in USB host mode, because 500 mA is the MaxPower required  by an ODAC or a FiiO E17.
 
ODAC
Device Descriptor:
bcdUSB:             0x0110
bDeviceClass:         0x00
bDeviceSubClass:      0x00
bDeviceProtocol:      0x00
bMaxPacketSize0:      0x08 (8)
idVendor:           0x1852
idProduct:          0x7022
bcdDevice:          0x0001
iManufacturer:        0x01
0x0409: "Binary Audio"
iProduct:             0x02
0x0409: "UAC1 DAC"
iSerialNumber:        0x00
bNumConfigurations:   0x01
 
Configuration Descriptor:
wTotalLength:       0x0151
bNumInterfaces:       0x04
bConfigurationValue:  0x01
iConfiguration:       0x00
bmAttributes:         0x80 (Bus Powered )
MaxPower:             0xFA (500 mA)
 
FiiO E17
Device Descriptor:
bcdUSB:             0x0110
bDeviceClass:         0x00
bDeviceSubClass:      0x00
bDeviceProtocol:      0x00
bMaxPacketSize0:      0x08 (8)
idVendor:           0x1852
idProduct:          0x50D0
bcdDevice:          0x0001
iManufacturer:        0x01
0x0409: "FiiO"
iProduct:             0x02
0x0409: "FiiO USB DAC-E17"
iSerialNumber:        0x00
bNumConfigurations:   0x01
 
Configuration Descriptor:
wTotalLength:       0x00EF
bNumInterfaces:       0x03
bConfigurationValue:  0x01
iConfiguration:       0x00
bmAttributes:         0x80 (Bus Powered )
MaxPower:             0xFA (500 mA)

The S3 can Hardbrick with OTG, read the below links. There's something evil going on with the Power Management Chip. It is not hard to find many such experiences using a Google search. I had two S3's fry when using OTG without a powered USB Hub or Y cable to a DAC that draws power. It's like rolling the dice.
http://forum.xda-developers.com/showthread.php?t=1940952
http://teamuscellular.com/Forum/topic/3012-usb-otg-just-fried-my-s3/

 

[thomascrown]

 
If I understand correctly, I believe you would need an OTG cable/external battery combo. The Wyrd is for cleaning a dirty computer USB power issue.

Thank you, do you think the wyrd doesn't provide also the extra juice necessary to let the dac work properly?
I was reading the specs and apparently it needs 480 mA to work, now the note2 should be able to provide 500mA... I wonder if it could be more a problem with uapp than hardware related. 

 

[DanBa]

I think you should contact Davy, the developer of UAPP.
 
Quote:

 
Simply email me at info AT audio-evolution.com for any issue you have.
 
 

http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/2370#post_9473798
 
Quote:

  For anyone who is getting glitches with USB Audio Recorder PRO with the HRT Microstreamer, could you please try and install this version (this is for people who have purchased it only) :
 
http://www.audio-evolution.com/priv_downloads/USBAudioRecorderPRO_1.2.7feedbackfix.apk
 
Please let me know if this changes anything.
 
Thank you,
 
Davy

http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/3255#post_9882474

 

[thomascrown]

  http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/3255#post_9882474

thank you very much, I wonder if Uapp and Uarp shares the same drivers (I don't see why they shouldn't), I own the player, not the recorder, anyway I will try again with the latest update (I've seen one yesterday) and if it's still not working I will mail for sure!

 

[DanBa]

   
UAPP defaults to the highest resolution and UARP defaults to 16-bit (if available). Otherwise, the USB code base is the exact same.

 
http://www.head-fi.org/t/704065/usb-audio-recorder-pro-uapp-24-and-32-bit-playback-ubiquitous-usb-audio-support-for-android#post_10266800

 

[thomascrown]

   
http://www.head-fi.org/t/704065/usb-audio-recorder-pro-uapp-24-and-32-bit-playback-ubiquitous-usb-audio-support-for-android#post_10266800

Hi, I tested my hrt hd with the latest uapp release and it works! ...for a few seconds... then it disconnects, I guess it's probably a power related problem: the battery was drained by a good 10% in less than 30 mins of tests. Pity though, it would have been great! 

 

[DanBa]

I think you should contact Davy. He should have some tracing tool to trace the messages exchanged between UAPP and the USB DAC.
 
By the way, when connecting to the Galaxy Note 2, is the HRT Music Streamer HD set up as a USB Audio Class 1.0 device or a USB Audio Class 2.0 device?
 

 
 
Also, if you have a powered USB hub, inserting it between the Galaxy Note 2 and the HRT Music Streamer HD should help to diagnose the interworking problem.

 

[thomascrown]

  I think you should contact Davy. He should have some tracing tool to trace the messages exchanged between UAPP and the USB DAC.
 
By the way, when connecting to the Galaxy Note 2, is the HRT Music Streamer HD set up as a USB Audio Class 1.0 device or a USB Audio Class 2.0 device?
 
 
 
 
Also, if you have a powered USB hub, inserting it between the Galaxy Note 2 and the HRT Music Streamer HD should help to diagnose the interworking problem.

Yesterday I tried as Class 2.0, I'll buy a powered usb hub to see if it fix the connection issue (and the battery draining), the only thing it's that I don't need the extra ports (that's why I was also asking about the Wyrd)... any recommendation?

 

[DanBa]

"The Cure for Noise and Glitches
Have you ever heard strange noise from your USB DAC? Or have you had it “drop out” after the computer goes to sleep? Or does your computer have trouble recognizing your DAC at all? It could be due to noisy USB power, or USB port power management (very common with Windows 8 and Mac Mavericks.)"
http://schiit.com/products/wyrd-usb-decrapifier
 
 
There is another cleaner solution to get rid of a noisy USB power and a phone battery draining is to use a USB OTG-Y cable from Elijah Audio and a small external battery:
https://www.facebook.com/ElijahAudio?
 
Samsung Galaxy S4 >> Elijah Audio USB OTG-Y cable powered by a 5V battery >> HRT microStreamer USB DAC/amp >> phones