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Android phones and USB DACs - Page 63

post #931 of 5933

I'm having trouble with GS3 + Pico. When I connect them to eachother, I see the USB device identification at the top of the screen and the built-in speakers mute. The song seems to fast forward (the jumps about 30 seconds forward once per second) and no sound comes out.

 

I've tried to capture a log using the Android Terminal Emulator app, but when I type "dmesg > \sdcard\f" and hit enter, I get the message /system/bin/sh: can't create scardf: Read-only file system

 

Could anyone help me please?

post #932 of 5933
Originally Posted by badhack View Post

I can confirm the Benchmark DAC1-PRE does NOT work with the Samsung Galaxy S III. I verified USB OTG with a kb and mouse and that works fine (as well as providing an amusing smartphone experience).
Has anyone verified any USB to SPDIF converters? I was thinking of picking up a cheap Turtle Beach Micro 2. There is a video on youtube of the original Micro working.

 

I'd be interested in seeing if this one works, too.

post #933 of 5933
Quote:
Originally Posted by HugoFreire View Post

I've tried to capture a log using the Android Terminal Emulator app, but when I type "dmesg > \sdcard\f" and hit enter, I get the message /system/bin/sh: can't create scardf: Read-only file system

You should type "/" instead of "\".
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/675#post_8824757

Quote:
Originally Posted by HugoFreire View Post

I'm having trouble with GS3 + Pico. When I connect them to eachother, I see the USB device identification at the top of the screen and the built-in speakers mute. The song seems to fast forward (the jumps about 30 seconds forward once per second) and no sound comes out.

You should use a USB 2.0 hub:
http://www.head-fi.org/t/608535/wolfson-dac-confirmed-for-galaxy-s3/750#post_8688938
http://www.head-fi.org/t/608535/wolfson-dac-confirmed-for-galaxy-s3/720#post_8638606
post #934 of 5933
Quote:
Originally Posted by badhack View Post

Has anyone verified any USB to SPDIF converters? I was thinking of picking up a cheap Turtle Beach Micro 2. There is a video on youtube of the original Micro working.

There are at least two USB DAC, working with the S3, which can act as USB - SPDIF adapter:
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/915#post_8903110

S3 > digital USB audio out >> "USB OTG" cable >> Asus Xonar U3 or Syba SD-AUD20101 > digital SPDIF out >> optical cable >> SPDIF DAC/amp >> headphones
post #935 of 5933
Quote:
Originally Posted by DanBa View Post


.......
A standard USB DAC can only act as a USB peripheral.
It can only interwork with a USB host.
A USB OTG device, like a Samsung Galaxy S3 / Note2, can act as a USB host or a USB peripheral.
An announced Android-specific USB DAC, like an Apple-proprietary USB DAC, can only act as a USB host.
It can only interwork with a USB peripheral.

If Stock GS3/Note2 is "standard usb audio", then what is it that makes those devices incompatible or troublesome with USB Dacs like the CLAS -db, iBasso DB2 etc? Is it because those DACs are working on a USB device (e.g. PC like in the above table) which has a specific driver installed?

 

Edit: thanks for the info about which compatible USB DACs provide S/PDIF out for the S3/Note2. It provides a nice workaround for making those 2 compatible with a wider range of DACs - if a little less portable thanks to the extra device in the chain.


Edited by analogue 3 - 11/29/12 at 12:12pm
post #936 of 5933
http://forum.xda-developers.com/showthread.php?t=2019794

I know this isnt exactly on topic but i managed to get lossless digital output throught the hdmi port pf my Droid X. I dont have a receiver or dac but im using squeezeplayer, logitech media server, and a gtab 2 to control it and playthrough my tv (confirming output). Details above.
post #937 of 5933
Quote:
Originally Posted by analogue 3 View Post

If Stock GS3/Note2 is "standard usb audio", then what is it that makes those devices incompatible or troublesome with USB Dacs like the CLAS -db, iBasso DB2 etc? Is it because those DACs are working on a USB device (e.g. PC like in the above table) which has a specific driver installed?

Based on some dmesg log outputs, I think the Samsung USB software / firmware (Exynos SoC) is intolerant with USB DACs which are not quite conform to the USB specification.
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/615#post_8807747
http://www.head-fi.org/t/608535/wolfson-dac-confirmed-for-galaxy-s3/720#post_8638606

Samsung engineers / developers should improve their USB software / firmware.
We should help them by publishing dmesg log outputs.

On the other side, USB DAC manufacturers should test their (upcoming) USB DAC with the Galaxy S3 / Note2. After all, these Android phones are best selling devices.
VentureCraft has subsequently modified the firmware and hardware of its pre mass-production Go-Dap X, which should not interwork with the Galaxy S3.
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/420#post_8753554
Edited by DanBa - 11/29/12 at 1:49pm
post #938 of 5933
Quote:
Originally Posted by HugoFreire View Post

I'm having trouble with GS3 + Pico. When I connect them to eachother, I see the USB device identification at the top of the screen and the built-in speakers mute. The song seems to fast forward (the jumps about 30 seconds forward once per second) and no sound comes out.

 

I've tried to capture a log using the Android Terminal Emulator app, but when I type "dmesg > \sdcard\f" and hit enter, I get the message /system/bin/sh: can't create scardf: Read-only file system

 

Could anyone help me please?

Exact behavior as my Audio GD Sparrow.

 

Don't think an unpowered 2.0 Hub will do any good either, someone correct me if I am wrong. Only way I managed to get it to work was after several disconnect connects (with the hub and without it) till it actually worked,  it works perfect otherwise.

 

Please try to post logs and I will do the same. I was going to take a shot at compiling a custom kernel this week( used to develop kernels for the Infuse 4G) but I need to compile more information before I have chance at it. I also know another kernel developer for the i9300 that would take patch requests if I wanted to make things move faster.

 

Hope that helps


Edited by jblparisi - 11/29/12 at 4:58pm
post #939 of 5933

Do I have to do anything special after connecting the usb cable to a dac/amp that works?

 

I brought my hdp to work today to use with my phone but I left my 1/4" to 3.5mm adapter at home and wasn't going to pay those outrageous prices at radioshack. Also I think it's pretty awesome how my mouse is connected to my phone right now..

post #940 of 5933
Quote:
Originally Posted by rawrster View Post

Do I have to do anything special after connecting the usb cable to a dac/amp that works?

 

I brought my hdp to work today to use with my phone but I left my 1/4" to 3.5mm adapter at home and wasn't going to pay those outrageous prices at radioshack. Also I think it's pretty awesome how my mouse is connected to my phone right now..

Plug and play, that's all you need

and HDP works great with my S3 as wellbeerchug.gif

post #941 of 5933

That sounds good then. Also my Anedio D1 does not work. My phone doesn't even recognize it being connected.

post #942 of 5933
post #943 of 5933
Quote:
Originally Posted by badhack View Post

I can confirm the Benchmark DAC1-PRE does NOT work with the Samsung Galaxy S III. I verified USB OTG with a kb and mouse and that works fine (as well as providing an amusing smartphone experience).
Has anyone verified any USB to SPDIF converters? I was thinking of picking up a cheap Turtle Beach Micro 2. There is a video on youtube of the original Micro working.

 

 

Quote:
Originally Posted by FlySweep View Post

 

I'd be interested in seeing if this one works, too.

 

 

I have the Matrix SPDIF converter on order from Headfishop. Ordered Nov 10, still hasn't shipped yet. Hopefully this gets resolved soon so that I can gets to testin'.

 

Edit: A nice lady over at Headfishop just informed me that it shipped a week ago and I have another 10-15 days until it gets to me.


Edited by BBEG - 11/29/12 at 8:02pm
post #944 of 5933

Okay, I've got a couple of questions:

 

1) Is there any other workaround to make the international GS3 compatible with the Pico w/o using a hub?

2) Is this intl' GS3 problem specific for the Pico? How does it work with other DACs that are known to be good for the US version GS3?
 

post #945 of 5933

Alright, I'm DYIng a Micro to Mini OTG adapter with a transaction translator in the path. Will let you know the results.
 

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