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Android phones and USB DACs - Page 351

post #5251 of 5366
Quote:
Originally Posted by JaRGoNzZ View Post


They only have the 1 in black (yeah, the on 1 the top right) and the TF10vi is not listed

 

I've actually considered just making one, basically hacking a cheap headset with a small enough clip-on mic and then braid it around my existing cable (this will be an everyday cable that will get knocked around a lot), wrap it with some kind of tubing from the y-junction to the plug, then have the mic hanging off and clipped on my collar (I barely wear collarless shirts out of the house, and when I do I'm probably wearing a coat or jacket over it), then wire them all up to a compatible plug. Problem is I can't seem to find any compact enough 4-pin ("balanced") TRRS plugs that will be small enough to fit through my phone case, except for  what comes with stock headsets. I pried one open and I couldn't put it back together properly - they don't seem to be designed to be serviceable to begin with (one other problem is that my IEM cable's conductors don't fit through them, even with me carving out a section on the side to accommodate it).

post #5252 of 5366
Quote:
Originally Posted by ProtegeManiac View Post

I've actually considered just making one, basically hacking a cheap headset with a small enough clip-on mic and then braid it around my existing cable (this will be an everyday cable that will get knocked around a lot), wrap it with some kind of tubing from the y-junction to the plug, then have the mic hanging off and clipped on my collar (I barely wear collarless shirts out of the house, and when I do I'm probably wearing a coat or jacket over it), then wire them all up to a compatible plug. Problem is I can't seem to find any compact enough 4-pin ("balanced") TRRS plugs that will be small enough to fit through my phone case, except for  what comes with stock headsets. I pried one open and I couldn't put it back together properly - they don't seem to be designed to be serviceable to begin with (one other problem is that my IEM cable's conductors don't fit through them, even with me carving out a section on the side to accommodate it).

Diy would be a great idea but I'm not a very hands on person. Can't help u on that. Sorry
post #5253 of 5366
Quote:
Originally Posted by JaRGoNzZ View Post


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.

post #5254 of 5366
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
post #5255 of 5366

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!


Edited by thomascrown - 8/21/14 at 11:01am
post #5256 of 5366
Quote:
Originally Posted by thomascrown View Post
 

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.

post #5257 of 5366
Quote:
Originally Posted by StanD View Post
 

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)

post #5258 of 5366
Quote:
Originally Posted by DanBa View Post
 

 

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 ;-)

post #5259 of 5366
Quote:
Originally Posted by DanBa View Post
 

 

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/

post #5260 of 5366
Quote:
Originally Posted by head-hi View Post
 


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. 

post #5261 of 5366
I think you should contact Davy, the developer of UAPP.

 

Quote:

Originally Posted by Davy Wentzler View Post

 

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:

Originally Posted by Davy Wentzler View Post
 

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

post #5262 of 5366

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!

post #5263 of 5366
Quote:
Originally Posted by Davy Wentzler View Post
 

 

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

post #5264 of 5366

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! 

post #5265 of 5366

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.

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