Android phones and USB DACs | Page 58 | Headphone Reviews and Discussion - Head-Fi.org

DanBa · Nov 16, 2012 at 11:35 PM

Quote:

bbeg said:
At any rate, remember that the S3 USB port only accepts micro b plugs... period. It's the only port I'm aware of on Android smartphones. Micro to USB OTG cables plug a micro b male end into the phone, as my earlier picture showed. Clearly the micro b end is capable of the task, no?

No!

The S3, a OTG device, has a Micro-AB receptacle which can accept a Micro-A plug or a Micro-B plug.
A non-OTG device has only a Micro-B receptacle which can only accept a Micro-B plug.

"3.1 USB 2.0 Specification Compliance
Any device with Micro-USB features is first and foremost a USB peripheral that is compliant with the USB 2.0 specification.

3.2 On-The-Go Device
Any OTG Micro-USB device shall conform to the OTG requirements as set forth in the On-The-Go Supplement to the USB 2.0 Specification.

3.3 Connectors
The USB 2.0 specification defines the following connectors:
• Standard-A plug and receptacle,
• Standard-B plug and receptacle, and
• Mini-B plug and receptacle.

The Micro-USB specification defines the following additional connectors:
• Micro-B plug and receptacle
• Micro-AB receptacle
• Micro-A plug."
http://193.219.66.80/datasheets/usb_20/Micro-USB_final/Micro-USB_1_01.pdf

The following cable seller has a right description of his cable:
http://cgi.ebay.fr/1ft-OTG-On-The-Go-Micro-USB-OTG-Cable-Samsung-i9100-Galaxy-Note-SII-XOOM-Nexus-7-/251098049983?pt=PDA_Accessories&hash=item3a769c2dbf

"What is the OTG Cable?
When attached to a PC an OTG device requires a cable which has a USB Standard-A plug on one end and a Micro-B plug on the other end. In order to attach a peripheral to an OTG device the peripheral either needs to have a cable ending in a Micro-A plug which is inserted into the OTG device's Micro-AB receptacle or the OTG device itself needs an adapter cable which has a Micro-A plug on one end and a Standard-A receptacle on the other. The adapter cable enables any standard USB peripheral to be attached to an OTG device. In order to attach two OTG devices together requires either a cable with a Micro-B plug at one end and a Micro-A plug at the other or can be achieved using a combination of the PC cable and adapter cable."

Make your own USB OTG - Simple:
http://forum.xda-developers.com/showthread.php?t=1806589

Nozomi · Nov 17, 2012 at 5:06 AM

Sorry for not trawling through the forum first - is ther a sticky topic somewhere that lists Android powered devices known to work or not work with standard USB audio to a standard USB DAC?

Also - how popular or who uses the HDMI out port to send audio to a device like a HDMI audio to coax,optical S/PDIF break-out box?

What are the chances of digital audio over HDMI ever taking over USB audio with Android based devices?

M.

NZtechfreak · Nov 17, 2012 at 7:35 AM

Quote:

nozomi said:
Sorry for not trawling through the forum first - is ther a sticky topic somewhere that lists Android powered devices known to work or not work with standard USB audio to a standard USB DAC?
Also - how popular or who uses the HDMI out port to send audio to a device like a HDMI audio to coax,optical S/PDIF break-out box?
What are the chances of digital audio over HDMI ever taking over USB audio with Android based devices?
M.

The list of devices is short.

On stock software only the S3, Note 2, Note 10.1 and Archos G9.

With custom software add the Nexus 7 and Nook Colour to the list.

Toe Tag · Nov 19, 2012 at 11:03 AM

Are you saying, no Galaxy S 1 or S 2, or Note 1?

I thought the Note 1 and S 2 supported USB host mode.
Is this not the same as usb2go or not sufficient.

Even with Cyanogenmod? http://get.cm/
Wish we could get cyanogenmod interested in head-fi.

Rockin_Zombie · Nov 19, 2012 at 11:52 AM

Quote:

thread said:
I just got this cable in the other day. It's a little stiff, but I can confirm that it works.
A low profile one with right-angled plugs is .... probably not existant

ah good to know! Looks like the only existing solution, can't wait till I receive mine, been carrying the clumsy two-cable setup now, bulge in my pocket :wink:

I hook my amp to my belt, so straight cable is perfect for me

victorcc · Nov 19, 2012 at 2:40 PM

Quote:

toe tag said:
Even with Cyanogenmod? http://get.cm/
Wish we could get cyanogenmod interested in head-fi.

Cyanogenmod is a very nice rom for regular use but a no go for USB audio so far, at least with the S3. You can use either the stock rom or a rom like the Omega which is based on the stock kernel and USB audio also works.

NZtechfreak · Nov 19, 2012 at 3:19 PM

Quote:

toe tag said:
Are you saying, no Galaxy S 1 or S 2, or Note 1?

I thought the Note 1 and S 2 supported USB host mode.
Is this not the same as usb2go or not sufficient.

Even with Cyanogenmod? http://get.cm/
Wish we could get cyanogenmod interested in head-fi.

I listed the only ones that have it, if I didn't list it, it doesn't have it.

Toe Tag · Nov 19, 2012 at 7:53 PM

Quote:

nztechfreak said:
The list of devices is short.

On stock software only the S3, Note 2, Note 10.1 and Archos G9.

With custom software add the Nexus 7 and Nook Colour to the list.

I've been looking for a solution like this for years. It really seems ideal. I get a multi-purpose device that I'd need to carry around with me anyway, that's mass manufactured, reliable, and moderately priced, and even comes with a camera and makes phone calls. I get an excellent large screen and full user interface. I can pull from the terabyte of music I have stored on my NAS, over LAN or 4G. That music is almost all CD bit rate regardless. I trust the computer and network to transport the digital bits. Then they hand it off in digital form to a proper audiophile DAC and amp and into my Spiral Ears CIEMs. Brilliant. Only thing I'd add is, they'll probably announce the Samsung Galaxy S 4 in 1Q13 to ship in 2Q13, and its rumored to have amazing specs. Assuming it continues to support USB out. (Meanwhile, Apple's technical advance is another new proprietary plug...) Only thing I'd wish for is cyanogenmod support. I mean I'm sure the DX100 is great but it runs 2.3 not 4.2 and it doesn't make phone calls or shoot pictures. OK I'd wish for a longer list of devices, including some "Android iPod Touches" that don't make phone calls. And I'd again wish for Google Nexus phones/tablets and Cyanogenmod to support the USB drivers.

EDIT: here is the link for the Samsung Galaxy S 4 http://www.neowin.net/news/samsung-to-demo-new-galaxy-s-iv-at-ces-2013 it better have usb 2 go guess we'll find out around January 8th...

DanBa · Nov 20, 2012 at 9:50 AM

analogue 3 · Nov 20, 2012 at 12:49 PM

The usb audio issue is now ranked 5th:
http://code.google.com/p/android/issues/list?cursor=android%3A24614&sort=-stars

After nearly a year of waiting and 2 years since Cowon managed to enable SPDIF out of their Android D3 - still waiting for Google to follow through and make their Android devices compatible with (independently powered) USB DACs in the same way that a notebook/pc currently is...

turokrocks · Nov 20, 2012 at 4:22 PM

BBK's Vivo X1 is a phone for audiophiles, packs high-end DAC and Beyerdynamic earphones

Toe Tag · Nov 20, 2012 at 5:23 PM

http://forum.xda-developers.com/showpost.php?p=23461551&postcount=29 states

Android kernel modders have already enabled the USB audio feature on
. Google Nexus One smartphone
http://sven.killig.de/android/N1/2.2/usb_host/#x11
. HTC Desire smartphone
http://forum.xda-developers.com/show...1&postcount=46
. Nook Color tablet
http://forum.xda-developers.com/show....php?t=1459892
. Archos G9 tablet
http://update.archos.com/9/gen9/chan...id_gen9it4.htm
. Ainol Novo 7 tablet
http://www.slatedroid.com/topic/2928...vers-and-libs/

DanBa, NZTestFreak, maybe we need people to test, but can we potentially add the Nexus One, the HTC Desire, and the Ainol Novo to the list. I have a Nexus One here... but need a cable and a DAC... maybe this Audio-gd Compass or Sparrow can act as DAC for testing.

DanBa · Nov 20, 2012 at 7:53 PM

The list of standard USB DACs reportedly interworking with the stock Galaxy S III / Note II is for the majority of people who don't want to hack their Android smartphones.
I will create a list of custom Android devices which can interwork with USB DAC.

AnakChan · Nov 20, 2012 at 10:03 PM

Quote:

turokrocks said:
BBK's Vivo X1 is a phone for audiophiles, packs high-end DAC and Beyerdynamic earphones

I picked that article up too from Engadget. Actually looks rather interesting but concerned about on-going support with "one hit wonders".

turokrocks · Nov 21, 2012 at 4:05 AM

Quote:

anakchan said:
I picked that article up too from Engadget. Actually looks rather interesting but concerned about on-going support with "one hit wonders".

We have to wait and see...but look how much thin this phone is!

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