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Android phones and USB DACs

Discussion in 'Portable Source Gear' started by nztechfreak, Feb 9, 2012.
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  1. NZtechfreak
    I prefer the black USB DAC/amp! Can't tell on design from only those pictures, but do prefer the thinner slab form factor for pairing with smartphones.
     
  2. DanBa
     
    I thought after firmware upgrading the native USB audio (i.e. Rocket Player or Tidal) is no more compatible with your USB DAC: hence the use of another third-party USB audio (i.e. UAPP).
     
     
    I think some component of your setup is malfunctioning:
    . Android device (particularly its USB OTG chip switching the Android device to USB host mode on the insertion of a USB OTG plug)
    . USB OTG cable
    . USB DAC.
     
     
    Therefore, each component should be separately tested: Go to next test only if the ongoing test is successful.
     
    . Test the USB DAC with a PC or a Mac:
    PC >> regular USB cable provided by the USB DAC maker >> USB DAC >> amp >> headphones
     
    . Test the Android device and a USB OTG adapter with a simpler USB peripheral like a USB mouse or a USB keyboard:
    Android device >> USB OTG adapter >> USB mouse
     
    . Test the setup using the USB OTG adapter:
    Android device >> USB OTG adapter + regular USB cable >> USB DAC >> amp >> headphones
     
    If the tests are successful, apparently the USB OTG cable is not functional (i.e. pin 4 is no more well connected to pin 5), then fix the USB OTG cable or buy a new one.
    Android device >> USB OTG cable >> USB DAC >> amp >> headphones
     
  3. m-i-c-k-e-y
    Specs!
     
  4. kostaszag
    Name? Manufacturer?
     
  5. shuto77


    Thanks for the information. My troubleshooting was pretty thorough. It must have been a software issue, as a factory reset did the trick. Only downside is that in my panic, I purchased USB Audio Pro for $8. I think I prefer my Rocket Player, though.

    I'm just glad I wasn't forced to replace the phone prematurely. I'm waiting for a big price drop for the LG V10, maybe in the spring.
     
  6. DanBa
    UAPP is currently my preferred music player, because at the very least UAPP does not resample.
    UAPP does not use the native USB audio, it includes its own USB audio soft driver.
     
    Like other generic music player, Rocket Player uses the native USB audio, which carries out resampling for the time being.
     
  7. Daniel Savage
    I have a galaxy tab 3 running kit-kat.  Is it possible to input audio from a usb microphone with a host otg cable?
    I tried it with an app I created in unity3d and it would not recognize the usb microphone as an input source.  Unity3d has a microphone input recognizer that usually gives the id and information of any input sources. The app could not recognize the input source of the usb mic connected to the host otg cable so I'm not sure if the problem is with unity or with the phone not recognizing the input source.
     
    How would I troubleshoot to test whethe the phone recognizes the microphone without unity?
     
     
     
     
     
     
     
     
     

     
  8. DanBa
     
    Yes, it is!
     
    USB Audio Recorder PRO:
    "Record and playback audio in high quality from a USB audio interface!
    Warning: this is not a generic driver, you can only playback and record from within this app. It is not possible to use your USB audio device with other apps!
    By all means try the TRIAL version first to see if your device works:"

    https://play.google.com/store/apps/details?id=com.extreamsd.usbaudiorecorderpro
     
  9. 1235
    Man, can't get my JDS Labs ODAC to work with my new 6P. Have tried using this cable and a cheapy type c to type b adapter, no good.
     
    Interestingly UAPP recognises the DAC being disconnected and suggests Linux can see it, but the phone refuses to boot with the DAC connected. So frustrating, used to work fine with my S4 and S5, failed to work with my S6 (someone here reported success with this) and now my 6P.
     
    Has anyone had any luck with the ODAC specifically on the 6P? The DAC still works fine on my PC. 
     
    Thanks
     
  10. chowboofay
     
    AVLOS - Portable USB DAC & Headphone Amplifier
     
    Powered by HiBy
    Produced by SMSL
    --------------------------------------------------------
    Output Level:     
    Line out    2.0 Vrms
    Phone out    1.6 Vrms
     
    THD+N:
    0.0008%    (0dBFS)
    0.0007%    (-6dBFS)
     
    Dynamic Range:
    111dB
     
    SNR:    
    Line out    108dB
    Phone out    104dB
     
    510d73a7bdbb9a4.jpg
     
  11. DanBa
    What does "Powered by HiBy" mean?
    Thanks
     
  12. DanBa
     
    How about using a reportedly working USB Type-C to USB Standard-A receptacle adapter?
     
    Also for troubleshooting:
    http://www.head-fi.org/t/595071/android-phones-and-usb-dacs
    A list of USB Type-C cables / adapters:
    https://goo.gl/n1cxPx
     
    Go to next test only if the ongoing test is successful.
     
    . Test the USB DAC with a PC or a Mac:
    PC >> regular USB cable provided by the USB DAC maker >> USB DAC >> amp >> headphones
     
    . Test the Android device and a USB Type-C to USB Standard-A receptacle adapter with a simpler USB peripheral like a USB mouse or a USB keyboard:
    Android device >> USB Type-C to USB Standard-A receptacle adapter >> USB mouse
     
    . Test the setup using the USB Type-C to USB Standard-A receptacle adapter:
    Android device >> USB Type-C to USB Standard-A receptacle adapter + regular USB cable >> USB DAC >> amp >> headphones
     
    If the tests are successful, apparently the USB Type-C to USB Mini-B cable is not functional (CC pin of the USB Type-C plug not connected to GND through a resistor Rd (5.1 kΩ)), then fix the USB Type-C cable or buy a new one.
    Android device >> USB Type-C to USB Mini-B cable >> ODAC >> amp >> headphones
     
  13. kostaszag
    Good question. And how much will the dac cost? What files does it play?
     
  14. 1235
    Thanks DanBa
     
    I'm concerned its not the cable, however I have no reasonable other way to test it given its terminations.
     
    Despite this, I've just now purchased a Type-C to USB Standard-A adapter from the Play Store (to ensure compatibility) in the hope it will work as you have outlined above. If this fails I'm going to run the ODAC over with my car and set fire to my large collection of expensive type C cables.
     
    Will report back
     
  15. Sound Eq
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