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Android phones and USB DACs - Page 9

post #121 of 2304
7/1/12 at 2:55am

By the way, what is your Android device?

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post #122 of 2304
7/1/12 at 4:18am
Quote:
Originally Posted by DanBa View Post

By the way, what is your Android device?

 

Galaxy S 3

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post #123 of 2304
7/1/12 at 5:30am

As the Samsung Galaxy S III can interwork with USB DAC like ODAC or Topping TP30, I think there is no audio switching issue with the S III.

 

 

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post #124 of 2304
7/1/12 at 6:42am
Quote:
Originally Posted by DanBa View Post

As the Samsung Galaxy S III can interwork with USB DAC like ODAC or Topping TP30, I think there is no audio switching issue with the S III.

 

 

 

 

 

Yeah I saw that video so is it a problem that can be fixed or not? 


Or is the e17 likely to never be able to be used with the SGS3?

 

I don't really mind, i've been using the E17 for other devices anyway, just wish I could try it with SGS3 until Voodoo Sound gets released.

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post #125 of 2304
7/1/12 at 10:09am

I think it could be fixed.

If a USB DAC descriptor is really buggy, there is already a patch of the USB core module proposed by an ALSA expert.

Otherwise, as the Archos G9 tablet can interwork with the E17 and the USB core module of the Archos G9 tablet is slightly different, the kernel of the Samsung Galaxy S III could be re-built with the Archos USB core module.

I have to be sure of the root cause, then I’ll ask some XDA developer to fix it with a modded kernel.

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post #126 of 2304
7/1/12 at 1:54pm
http://www.engadget.com/2012/06/30/gear4-speaker-dock-supports-usb-audio-for-jelly-bean-at-google-i/?m=false

Tadaa, the usb audio dock confirming usb audio in stock Jelly Bean :-)
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post #127 of 2304
7/1/12 at 6:12pm
Quote:
Originally Posted by DanBa View Post

Bad news!
 
The USB DAC recommended by Google is a new type of device. It is not compatible with PC or Mac.
 
A legacy USB DAC compatible with PC / Mac acts as a USB device, and a PC / Mac acts as a USB host.
A USB DAC recommended by Google acts as a USB host, and a Android smartphone / tablet acts as a USB device.
...............

 

I'm a little curious,

can this incompatibility problem be resolved by a specific app?

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post #128 of 2304
7/2/12 at 1:16am

As far as I understand, an Android 4.1 Jelly Bean-powered device can have both USB audio out modes: standard USB audio out and Android-specific USB audio out.

These features are at the Android kernel level.

http://developer.android.com/tools/adk/aoa2.html#audio-support

 

It should be easy to enable standard USB audio out and Android-specific USB audio out on an Android 4.1 Jelly Bean-powered device with USB host capability.

 

480480_4317734867479_2047049317_n.jpg

 

USB audio out.jpg

 

USB mass storage.jpg

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post #129 of 2304
7/2/12 at 3:34am

I have a Galaxy Nexus running Jelly Bean right here on my desk and a Nexus 7 incoming. I should go sign up for that beta program...

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post #130 of 2304
7/2/12 at 1:29pm
Quote:
Originally Posted by Sorensiim View Post

I have a Galaxy Nexus running Jelly Bean right here on my desk and a Nexus 7 incoming. I should go sign up for that beta program...

no, you should sit there and stare at it... sarcasm :p, but in all seriousness, do sign up and let us know

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post #131 of 2304
7/3/12 at 11:27am
Quote:
Originally Posted by WiR3D View Post

no, you should sit there and stare at it... sarcasm :p, but in all seriousness, do sign up and let us know

I shot an email to Kevin Halverson, CTO of HRT so now we'll have to see if they will let anyone from outside the US join in. If so, there might be an NDA keeping me from letting you know, I'm afraid. 

 

I must say, the thought of a nice HRT dac with my Nexus 7, Galaxy Nexus or the new Nexus Q is pretty intriguing.

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post #132 of 2304
7/4/12 at 11:39pm

Almost in the top 5!
 

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post #133 of 2304
7/5/12 at 5:22am

Anyone seen this?

 

http://www.engadget.com/2012/06/26/matrix-one-ics-tablet-hands-on/

 

Kind of looks like a cheap toy and the screen sucks, but it comes with a full sized USB port, microSD card in addition to the stand mini-usb charging port.  If you could hack this thing to host something like the ODAC, it could be quite a nice little media station.

 

Plus, it's dirt cheap.

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post #134 of 2304
7/5/12 at 7:18am
Quote:
Originally Posted by Anathallo View Post

Anyone seen this?

 

http://www.engadget.com/2012/06/26/matrix-one-ics-tablet-hands-on/

 

Kind of looks like a cheap toy and the screen sucks, but it comes with a full sized USB port, microSD card in addition to the stand mini-usb charging port.  If you could hack this thing to host something like the ODAC, it could be quite a nice little media station.

 

Plus, it's dirt cheap.

 

Wow, I saw $99, Android 4.0.3, 2 USB ports (1X full and 1X micro), 1GB RAM and 16GB storage.

Does Android 4.0.3 support USB digital output as stock?   Edit: Looks like it does not. Android 4.1 released on Jun 27, 2012 should do that.

I thought about this:  Music on 500GB hard drive -> Tablet USB port #1 as USB host -> Tablet USB port #2 for digital output -> USB dac/amp -> Headphones. Fiio E10 would not work, right? I may then use either ODAC or Fiio E7.


Edited by zzffnn - 7/5/12 at 7:20am
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post #135 of 2304
7/5/12 at 10:17am
Quote:
Originally Posted by zzffnn View Post

 

Wow, I saw $99, Android 4.0.3, 2 USB ports (1X full and 1X micro), 1GB RAM and 16GB storage.

Does Android 4.0.3 support USB digital output as stock?   Edit: Looks like it does not. Android 4.1 released on Jun 27, 2012 should do that.

I thought about this:  Music on 500GB hard drive -> Tablet USB port #1 as USB host -> Tablet USB port #2 for digital output -> USB dac/amp -> Headphones. Fiio E10 would not work, right? I may then use either ODAC or Fiio E7.

$99 is for 4 gb of internal storage I believe - it's $169 or something for 16gb.

 

I also don't know what stock android will be capable of doing with a full-sized USB port.  Only Chromebooks and some Asus tablets/tablet docks come with full sized USB ports.

 

Anyone know?

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