Android phones and USB DACs - Page 71

For anyone else using their Android phone as a music hub in their cars, and never figured out how to make phone calls work at the same time, I bring you the oldest news in the book.... "Bluetooth".  With pictures!  lol  
I finally figured out how to make it all work at the same time.

Yes, I guess I can be "slow" with "some things" from time to time.  ;)

http://forum.xda-developers.com/showthread.php?p=35491577#post35491577

Quote:

Originally Posted by chrdxn 

I'm trying to get a new Fiio E07K to work with my Galaxy S3, but can't get it to work using via USB/OTG cable except for one brief time yesterday where Spotify was playing just fine for about a half hour, but when I tried later that night, it was no good. Here's what I can tell you:

 

- Stock Galaxy S3 on AT&T with Jelly Bean

- The E07K is recognized by the phone it can pass digital audio. I successfully tested this via USBAudioTester app (GS3's mic input passed through dac to headphones via OTG).

- Music Player: It looks like it is trying to play, but the track time counts up way too quickly.

- Spotify: Not sure what I did, but I was able to get Spotify to play via OTG for about 1/2 hour yesterday. All other attempts before and after failed. No sound plays.

- Pandora: No sound, just immediately keeps skipping tracks over and over

 

I should also mention that two others reported getting the E07K to work with a GS3 on a different thread here. What am I missing? Obviously it CAN pass the audio, but something is not right. As a last resort, I tried it immediately after a factory restore... no luck, so it doesn't appear to be a conflicting setting.

I’ve got the exact same equipment and have the exact same problem. Please post if you find a solution. Good luck.

Quote:

Originally Posted by DanBa 

I get 16/44.1 and 24/44.1 playback.

 

 

 

 

 

But I can’t get correct playback with 24/96 files through 24/96-capable ODAC or FiiO E17.

 

The 24/44.1 Old Balloons from Boots Met My Face is freely downloaded from the following site:

http://christmas.linn.co.uk/

Same here.

How about a Behringer UCA202 with (digital) Optical Output and (analog line out) Output, the one used by CZ Eddie for the upgrade of his car stereo?

http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/975#post_8939107

Quote:

Originally Posted by chrdxn 

 

Yes, the OTG cable works, and the GS3 CAN recognize the E07K. I know this because I ran an app called USBAudioTester which identified it as Fiio USB DAC-E07K. When I select that as my device, I can run a test called "int Mic to ext Speaker". This test takes any sounds picked up by the Galaxy S3 mic and sends them out via USB. When I snap my fingers or knock on the desk, I hear it a split second later through the headphones. So the device can be recognized and process audio via OTG. It's just that any music player I throw at it does not work. It does work on my iPad via Camera Connection kit, and it also works on my computer via USB.

Have you tried USB Audio Recorder Pro?

A dmesg log output could detail what is going on between your Galaxy S3 and your FiiO E07K.

http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/675#post_8824757

Yes.

stock Galaxy S3 > digital USB audio out >> "USB OTG" cable >> Behringer UCA202 > digital optical out >> optical cable >> Audison Bit Ten D

Usually, plug and play with the right cables and with the non-faulty devices.

Review of USB Audio Recorder PRO for Android:

http://www.youtube.com/watch?v=nh6DhHHm6Gk

sorry guys it's been a while since I've been around, scrolled through but did see, is there any news on being able to get usb audio out of a galaxy nexus?

"I tried the trial app [USB Audio Recorder PRO] on my Galaxy Nexus, does work!"

http://forum.xda-developers.com/showpost.php?p=35484769&postcount=52

^ Wow, this is great news!

I'm curious though is this still using androids kernel for processing the 16/44 files? If so this is still the downfall of the devices as androids kernel is downright crap.
 

Quote:

Originally Posted by DanBa 

As far as I understand, there is no 16/44.1 limitation in the stock Android kernel (i.e. Linux kernel) of most current Android devices.

Android Linux kernel is able to drive 32/384-capable USB DAC.

http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/975#post_8940230

 

The beauty of Android is its open source.

As Android is open source, Samsung doesn’t have to follow blindly Google ignoring the standard USB audio, and the Samsung people have implemented the Linux ALSA USB audio on their Galaxy S3 / Note2.

Also, despite some 16/44.1 limitation due to the current audio mixer at the ROM level of current stock Android, iBasso or eXtream Software Development can provide Android software which can support 16-bit and 24-bit audio streams.

Well that is obviously not the case. Even Power Amp and neutron says android is limited to 16/44 and that the kernel isn't that good to begin with. This is clearly the case even on the DX100. The custom API ibasso created bypasses the crappy kernel on android thus you get the full benefit of the sabre DAC. If you listen to music on Power Amp or Neutron audio even on 16/44 is really sounds mediocre in comparison to ibassos Stock player. This is not only due to the 16/44 limit but the inherent limitations in androids kernel impacting the sound in a negative way.