Android phones and USB DACs
Aug 28, 2014 at 11:17 PM Post #5,296 of 9,526
Edit: Beaten to the punch :wink:
Something like this should work http://www.amazon.com/eForCity-Adapter-compatible-Samsung-Galaxy/dp/B00871Q5PI/ref=sr_1_1?ie=UTF8&qid=1409282194&sr=8-1&keywords=micro+usb+otg
 
Aug 29, 2014 at 3:54 PM Post #5,299 of 9,526
New USB DAC/amp: Creative Sound Blaster E5, a standard USB DAC and an Android-specific USB DAC!
http://us.creative.com/p/sound-blaster/sound-blaster-e5
 

 
 
Standard USB DAC & Android-specific USB DAC:
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/135#post_8508754
 
A standard USB DAC acts as a USB Device.
A standard USB DAC can work with a PC, a Mac or an Android-powered device acting as a USB Host.
 

 
An Android-specific USB DAC acts as a USB Host.
An Android-specific USB DAC can work with an Android-powered device acting as a USB Device.
An Android-specific USB DAC can't work with a PC or a Mac, because a USB Host can't work with another USB Host: USB is a master-slave communication bus, USB communication can only take place between a master device (i.e. USB Host) and a slave device (i.e. USB Device).
An Android-specific USB DAC is compliant with the Android Open Accessory protocol 2.0:
"Android Open Accessory protocol 2.0 includes optional support for audio output from an Android device to an accessory. This version of the protocol supports a standard USB audio class interface that is capable of 2 channel 16-bit PCM audio with a bit rate of 44100 Khz. AOA 2.0 is currently limited to this output mode, but additional audio modes may be added in the future."
According to the Creative web site, the Android-powered devices which have implemented the AOA 2.0 protocol are as follows: Google Nexus 5 / 7, Samsung Galaxy S4 / S5 / Note2 / Note3, Sony Xperia Z Ultra, Xiaomi Redmi / Redmi Note / Mi3, (LG G3).
 
 

 
 
E5 as an Android-specific USB DAC: thru USB HOST port
Xiaomi Redmi Note >> regular USB cable >> USB HOST port > E5 >> headphones
 

 
 
E5 as a standard USB DAC: thru USB port
Android device >> USB OTG cable >> USB port > E5 >> headphones or
Android device >> micro to standard USB OTG adapter + regular standard to micro USB cable >> USB port > E5 >> headphones
USB Audio Player PRO (UAPP) should play a 24/192 music file and output a 24/192 PCM stream towards a 24/192 capable Creative Sound Blaster E5.
 
 
Aug 29, 2014 at 4:59 PM Post #5,301 of 9,526
Currently SG$199 (i.e. US$160).
http://sg.creative.com/p/sound-blaster/sound-blaster-e5 
 
"From 28 to 31 August 2014, the Sound Blaster E5 will be showcased and available for pre-order at just SG$199 at Comex 2014 (Suntec Singapore Convention & Exhibition Centre, Hall 601, Booth 6141 and 6801).
After which, the Creative Sound Blaster E5 will be available through sg.creative.com and all authorized Creative retailers from October 2014 for SG$269 (US$199)."
http://www.hardwarezone.com.sg/feature-exclusive-hands-sound-blaster-e5-creatives-new-24-bit192khz-usb-dac-and-portable-headphone-a
 
Sep 3, 2014 at 5:27 AM Post #5,305 of 9,526
“Android phone/tablet can also play Hi-Fi.” again:
http://www.amazon.com/SMSL-Sanskrit-24bit192kHz-Coaxial-Optical/dp/B00MGA0S7M/ref=sr_1_2?ie=UTF8&qid=1409730233&sr=8-2&keywords=smsl+sanskrit
http://www.shenzhenaudio.com/smsl-sa-98e-160wpc-tda7498e-class-t-digital-amplifier-power-adapter.html
http://www.magnat.de/en/detail/index/sArticle/44/sCategory/
http://forum.minimachines.net/Thread-USB-audio-Android-USB-audio-standard?pid=3914#pid3914
 
Sony Xperia Tablet S >> SMSL Sanskrit USB DAC >> SMSL SA-98E T-amp >> Magnat Monitor Supreme 200 speakers
 

 

 

 

 

 

 
Sep 4, 2014 at 6:49 PM Post #5,307 of 9,526
Spent some time today trying to get my source devices figured out for the upcoming Nashville meet, and I thought I'd share some of my findings. Some of this stuff is obvious (e.g., Nexus and Ellipsis not working), but some might not be:
 
  1. HTC M8 (no UAPP) > USB OTG mini to micro (silver) cable > Meier PCSTEP > HP out = GOOD
  2. HTC M8 (no UAPP) > USB OTG mini to micro (silver) cable > iBasso D-Zero > HP out = GOOD

  1. Nexus 7 (stock ROM, no UAPP) > USB OTG mini to micro (silver) cable > iBasso D-Zero > HP out = BAD
  2. Nexus 7 (stock ROM, no UAPP) > USB OTG mini to micro (silver) cable > Meier PCSTEP > HP out = BAD

  1. Nexus 7 (stock ROM, with UAPP) > USB OTG mini to micro (silver) cable > iBasso D-Zero > HP out = BAD

  1. Nexus 7 (stock ROM, with UAPP) > USB OTG mini to micro (silver) cable > Meier PCSTEP > HP out = BAD (UAPP says it might work w/ powered USB hub, tried it, couldn't get it to work)

  1. Ellipsis 7 (stock ROM, no UAPP) > USB OTG mini to micro (silver) cable > Meier PCSTEP > HP out = BAD (UAPP not available on Ellipsis)
  2. Ellipsis 7 (stock ROM, no UAPP) > USB OTG mini to micro (silver) cable > iBasso D-Zero > HP out = BAD (UAPP not available on Ellipsis)

  1. Galaxy Note Pro (stock ROM, no UAPP) > USB OTG mini to micro (silver) cable > Meier PCSTEP > HP out = BAD
  2. Galaxy Note Pro (stock ROM, no UAPP) > USB OTG mini to micro (silver) cable > iBasso D-Zero > HP out = BAD
  1. Galaxy Note Pro (stock ROM, with UAPP) > USB OTG mini to micro (silver) cable > iBasso D-Zero > HP out = GOOD
  2. Galaxy Note Pro (stock ROM, with UAPP) > USB OTG mini to micro (silver) cable > Meier PCSTEP > HP out = GOOD


 
The "USB OTG mini to micro (silver) cable" is just a standard USB OTG mini-to-micro cable I bought on eBay. (I only mentioned the fact that it's silver to differentiate it from the other USB OTG cables I have in case I come back to this later.)
 
Also, I have successfully used the network folder browsing in UAPP to wirelessly play files from a 1TB external hard drive via the Ravpower. (I have it playing right now, basically just as a victory lap after all the trouble I've gone to today to make everything work). Once you've downloaded the MobileFun app and connected to the Ravpower via wifi (see previous posts), plug in USB DAC, open UAPP, and set UAPP to play through the USB DAC. In UAPP, select the "Add Music" button (plus sign and music note), select "Network" from the options on the left, hit the green plus sign beside "Network Shares," and you get the four fields I've listed below. Here are the settings that worked for me:
 
  1. Name: [the name you gave your Ravpower wifi network]
  2. Address (URL): smb://10.10.10.254
  3. User name: [the user name you set up on Ravpower, which is admin by default, I believe]
  4. Password: [the wifi password, which can rather confusingly be different than the password you set up to use the device]
 
This means that if you have albums sorted into folders (as I do), you can now direct UAPP to the folder you want to listen to and it plays the whole folder instead of one song at a time... this is HUGELY useful, and a terrific enhancement!!
 
Don't know if anyone cares about this, but I found it really great, and it's going to allow me to wirelessly supply multiple devices with access to a 1TB hard drive, so I'm pretty stoked about it :wink:.
 
Sep 4, 2014 at 10:44 PM Post #5,308 of 9,526
Sep 5, 2014 at 3:40 AM Post #5,309 of 9,526
A list of stock Android-powered devices reportedly interworking with compatible USB DAC:
stock Android device > digital USB audio out >> USB DAC >> amp >> headphones
http://goo.gl/ksoF0d
 
A list of USB Audio Player PRO resources (compatible USB DAC, compatible Android devices, ...):
http://www.extreamsd.com/USBAudioRecorderPRO/
 
A list of standard USB DAC reportedly interworking with the native USB audio of Android L Developer Preview:
Android device running on Android L > digital USB audio out >> USB OTG cable (ID pin grounded) >> USB DAC >> amp >> headphones
http://goo.gl/x3loEQ
 
A list of standard USB DAC reportedly interworking with the Android-powered smartphone Samsung Galaxy S3:
stock Samsung Galaxy S3 > digital USB audio out >> USB OTG cable (ID pin grounded) >> USB DAC >> amp >> headphones
http://goo.gl/yBKivk
 
A list of standard USB DAC reportedly interworking with the Android-powered smartphone Samsung Galaxy Note2:
stock Galaxy Note2 > digital USB audio out >> USB OTG cable (ID pin grounded) >> USB DAC >> amp >> headphones
http://goo.gl/Ga1jYw
 
A list of standard USB DAC reportedly interworking with the Android-powered smartphone Samung Galaxy S4:
stock Samsung Galaxy S4 > digital USB audio out >> USB OTG cable (ID pin grounded) >> USB DAC >> amp >> headphones
http://goo.gl/dIwrqp
 
A list of standard USB DAC reportedly interworking with the Android-powered smartphone Samsung Galaxy Note3:
stock Samsung Galaxy Note3 > digital USB audio out >> USB OTG cable (ID pin grounded) >> USB DAC >> amp >> headphones
http://goo.gl/7Bvkhz
 
A list of standard USB DAC reportedly interworking with the Android-powered smartphone Samung Galaxy S5:
stock Samsung Galaxy S5 > digital USB audio out >> USB OTG cable (ID pin grounded) >> USB DAC >> amp >> headphones
http://goo.gl/zUjud0
 
A list of USB OTG cables:
http://goo.gl/4JyOe5
 
USB DAC descriptors:
http://goo.gl/pYJbTu
 
FAQ:
http://goo.gl/A4dCnP
 
The basics:
http://goo.gl/MCFY2x
 

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