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Android phones and USB DACs - Page 4

post #46 of 5584

@Robn13 

Thanks!

 

 

The Google issue "Enable USB audio", requesting Google to standardize USB audio on Android smartphones/tablets, is currently ranked 14 of 20,332.
 
Vote: Click on the star (it appears after signing in)

 

post #47 of 5584

I voted for it. Looks like it has made its way up there.

post #48 of 5584

Any updates on this?? I am posting the link on facebook. Guys, we should all do that!

 

post #49 of 5584

 

When the issue "Enable USB audio" got 1000 votes, I asked Jean-Baptiste Queru, a Google engineer responsible for most technical aspects of the Android Open-Source Project, to review this well-starred issue.

 

His reply is:

“If someone submits code to implement that feature, it'll eventually get looked at."

 

I plan to trigger him again when a kernel modder will successfully enable USB audio on the Google Galaxy Nexus.

 

I hope we will create a big buzz on this upcoming modded USB audio enabling event.

post #50 of 5584

the only Android Phone that support this is Meizu MX, maybe they can help if we email them?

post #51 of 5584
Thread Starter 

 

Quote:
Originally Posted by DanBa View Post

 

When the issue "Enable USB audio" got 1000 votes, I asked Jean-Baptiste Queru, a Google engineer responsible for most technical aspects of the Android Open-Source Project, to review this well-starred issue.

 

His reply is:

“If someone submits code to implement that feature, it'll eventually get looked at."

 

I plan to trigger him again when a kernel modder will successfully enable USB audio on the Google Galaxy Nexus.

 

I hope we will create a big buzz on this upcoming modded USB audio enabling event.

 

Ask him to look at the Archos G9 open source code, they've had support for this since last December.

 

post #52 of 5584
Awesome! Keeping my fingers-crossed. I'll ask around to see if anyone can help with programing and pass the info along.
post #53 of 5584

 

Quote:
Originally Posted by a_tumiwa View Post

the only Android Phone that support this is Meizu MX

 

Thanks!

 

Apparently, the quad-core Meizu MX can support S/PDIF digital out thru the micro USB:

http://en.meizu.com/products/mx-specifications.html

http://cn.engadget.com/2011/12/20/meizu-mx-dlna-s-pdif-usb-host/

http://www.engadget.com/2011/12/15/meizu-mx-review/

 

Meizu MX > USB out > USB-S/PDIF converter > S/PDIF out > DAC > amp 

 

meizu-mx-review-lead-1323757289.jpg

 

meizu-mx-spdif.jpg

 

meizu-mx-coaxial.jpg

post #54 of 5584

Starred this ages ago. Glad to see more people supporting it. beerchug.gif

post #55 of 5584

http://www.phonearena.com/news/Exynos-4412---whats-in-store-with-the-quad-core-processor-in-the-Samsung-Galaxy-S3_id29615

 

"The chipset also has other potential advantages like USB-on-the-go, USB-host and -device regimes"

 

 

 

Been following all the Samsung Galaxy SIII news lately.  It's apparently going to have the Exynos 4412 quad-core chipset which apparently natively supports USB-host modes. Unfortunately the US bound SGIII is getting the dual-core Snapdragon chipset...

 

 


Edited by sanity8me - 4/30/12 at 7:52am
post #56 of 5584

The snapdragon s4 will almost certainly support usb host mode considering that andoird 3.0 and higher allnatively support the mode

post #57 of 5584
Thread Starter 

I'd be very surprised if all versions of the S3 didn't support USB OTG/Host. 

 

That said support for it in the current version of the Android operating system does not assure it, for example the One X does NOT have it. Moral of the story the OEM still needs to add support at the kernel level.

 

Also, don't be confused here - if the S3 supports USB Host (I'm 99% certain it will) that is not synonomous with USB DAC support which it is unlikely to have.

post #58 of 5584

I believe that the CM9 team is planning on implementing USB DAC support eventually.  But as the previous poster eluded, I think it would require a custom kernel.

 

It's not yet working on the 4/19/12 build I have running on my Note.


Edited by nnotis - 5/4/12 at 1:20pm
post #59 of 5584

USB audio is enabled on Texas Instruments Blaze tablet, which is targeted at developers.

http://omappedia.org/wiki/USB_on_Blaze_Tablet_with_ICS

http://www.svtronics.com/products/5-blaze-tablet-1-development-platform

 

"The two HS USB ports are the standard High Speed Host ports and are used for connecting devices like Mouse, Keyboard, USB stick, Camera, USB audio Headset/speakers etc. Also, many customers use the EHCI interface for Modem Connection. If you connect a camera to this port, you can browse the pics on the SD card in camera in the gallery using the PTP daemon in ICS. Also, you can connect USB Headset or speakers and play audio over USB."

 

"On Blaze if you plug in a USB audio device, all audio will be routed to the device."

http://music.columbia.edu/pipermail/andraudio/2012-April/000614.html

 

 

The Google issue "Enable USB audio", requesting Google to standardize USB audio on Android smartphones/tablets, is currently ranked 11 of 22,586.

http://code.google.com/p/android/issues/detail?id=24614&sort=-stars&colspec=ID%20Type%20Status%20Owner%20Summary%20Stars

 

Vote: Click on the star (it appears after signing in)

post #60 of 5584

Like the overwhelming majority of factory or stock Android devices, with the exception of the Archos G9 tablet and the developer-targeted Texas Instruments Blaze tablet, the factory Linux-powered Logitech Squeezebox Touch does not support USB DACs.

 

The USB audio is enabled manually on Squeezebox Touch:

http://www.digitalaudioreview.net.au/index.php/news-blog-and-showcase/john-darkos-blog/item/150-how-to-enable-usb-audio-output-on-the-squeezebox-touch

 

The latest method uses an applet which allows a custom kernel to be installed and provides menus to select the audio output device.

This custom kernel can support 24-bit/192KHz USB DACs. It can also support asynchronous USB DACs which sound theoretically better than the legacy adaptive USB DACs.

http://www.digitalaudioreview.net.au/index.php/news-blog-and-showcase/john-darkos-blog/item/362-enhanced-digital-output-applet-for-squeezebox-touch

http://forums.slimdevices.com/showthread.php?94855-Triode-s-USB-24-192-plug-in-sound-quality-impressions

 

The Google request "Enable USB Audio" has reached the Top 9 of the Google issue rankings.

http://code.google.com/p/android/issues/list?cursor=android%3A24614&sort=-stars

 

551131_4131345007849_1410232016_33715844_1048303929_n.jpg


Edited by DanBa - 5/26/12 at 9:31am
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