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Good news about Android phone supports digital audio output - Page 4

post #46 of 253

My Touchpad cannot host the E17 on CM7 or CM9. According to the terminal, it has too much power draw. The touchpad is KNOWN to have USB host capability, even having custom kernels of WebOS that supposedly have USB audio, which I have not been able to use...because the E17 draws too much power. This is not cool...I bought the E17 hoping I could output to it with my android devices...I might as well have kept my E10.

 

Kojaku

post #47 of 253
Thread Starter 
Quote:
Originally Posted by Kojaku View Post

My Touchpad cannot host the E17 on CM7 or CM9. According to the terminal, it has too much power draw. The touchpad is KNOWN to have USB host capability, even having custom kernels of WebOS that supposedly have USB audio, which I have not been able to use...because the E17 draws too much power. This is not cool...I bought the E17 hoping I could output to it with my android devices...I might as well have kept my E10.

 

Kojaku

 

Yes, It also depend on the the power, some USB HOST can support a extra portable hard disk, some can only support U disk. I use Android phone too, and I know even E17 can support Android phone, the power will be a big problem because

 

none will love to charge the phone so frequency, that is why we try to develop a special DAC with power output so the phone can be charged at the same time when using the DAC to play music. 

post #48 of 253

How about using it with a (slim) battery-powered USB hub?

post #49 of 253

Instead of waiting for Android's USB/DAC support, WiFi audio streaming maybe a good solution for Android.

http://danbeahm.blogspot.com/2012/02/best-wifi-streaming-music-setup.html

post #50 of 253
Quote:
Originally Posted by feiao View Post

 

Yes, It also depend on the the power, some USB HOST can support a extra portable hard disk, some can only support U disk. I use Android phone too, and I know even E17 can support Android phone, the power will be a big problem because

 

none will love to charge the phone so frequency, that is why we try to develop a special DAC with power output so the phone can be charged at the same time when using the DAC to play music. 

 

 

which android phone do you use?

 

Kojaku
 


Edited by Kojaku - 5/11/12 at 9:33am
post #51 of 253
USB audio is enabled on Texas Instruments Blaze tablet, which is targeted at developers.
 
"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."
 
 
The Google issue "Enable USB audio", requesting Google to standardize USB audio on Android smartphones/tablets, is currently ranked 11 of 22,587.
 
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post #52 of 253
Quote:
Originally Posted by DanBa View Post

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 22,587.
http://code.google.com/p/android/issues/detail?id=24614&sort=-stars&colspec=ID%20Type%20Status%20Owner%20Summary%20Stars
 
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Yeah...except the part where the tablet costs $2400...

Kojaku
post #53 of 253
Quote:
Originally Posted by DanBa View Post

"[64GB + 64GB] #GalaxySIII includes an USB driver named "snd-usb-audio" [ALSA USB audio driver]. Only testing will tell if it means USB DAC are supported out of the box." [Supercurio]
 
 
"The Samsung Galaxy S III: AndroidNZ goes hands-on, brings you our thoughts and exclusive details
...and what about those USB audio drivers?
 
Anyone with a passing familiarity with me will know this was one of the questions I most wanted an answer to. You see Supercurio was able to ascertain that USB audio drivers are present on the S3, only there was no way for him to know whether they work out of the box.
 
Sadly it seems they do not. 
To my great disappointment there was no audio output on connecting my FiiO E17 USB DAC and headphone amplifier. I guess we'll just have to keep waiting for some enterprising developer to make use of those orphaned drivers that are just sitting there on the S3..."
 
 
The Google request "Enable USB Audio" has reached the Top 10 of the Google issue rankings.
 
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Edited by DanBa - 5/19/12 at 2:54pm
post #54 of 253

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 USB audio is enabled on the Ainol Novo 7 Advanced tablet:

http://www.slatedroid.com/topic/29289-usb-audio-cards-support-drivers-and-libs/

 

"We just need 3 base things:

1st: USB Host support in Android kernel.

2nd. USB audio driver, in kernel, or compiled as a module.

3rd. Some logic to switch to USB audio card, or back to internal one."

 

 

551131_4131345007849_1410232016_33715844_1048303929_n.jpg

 

The Google issue "Enable USB audio", requesting Google to standardize USB audio on Android smartphones/tablets, has reached the Top 9 of the Google issue rankings.

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

post #55 of 253
Quote:
Originally Posted by feiao View Post

 

Good news, will buy a Galaxy III to have a try!

 

 

It seems USB audio is enabled on SGS3:
 
"I got my sgs3 a few hours ago and just plugged it into my Topping tp30 USB DAC/pre-amp and it's playing audio through it to my speakers!!!
I'm definitely using a USB otg cable."
 
But SGS3 and E17 don't interwork even via a powered USB hub:
 
Another workaround?
post #56 of 253
Thread Starter 

Seems not so many head-fi'er are interested in DAC for Android phone? we need more feedback to decide to make a portable DAC for Android phone. I think it is a good solution for portable music.

post #57 of 253
Quote:
Originally Posted by feiao View Post

Seems not so many head-fi'er are interested in DAC for Android phone? we need more feedback to decide to make a portable DAC for Android phone. I think it is a good solution for portable music.

 

I would be very interested..

 

Or better yet, an E17 alternative that also is a DAP.

post #58 of 253

I would certainly be interested.

Quote:
Originally Posted by feiao View Post

Seems not so many head-fi'er are interested in DAC for Android phone? we need more feedback to decide to make a portable DAC for Android phone. I think it is a good solution for portable music.

post #59 of 253
Quote:
Originally Posted by beaver316 View Post

 

I would be very interested..

 

Or better yet, an E17 alternative that also is a DAP.

Yes,

I bought a better DAP to solved the problem.

post #60 of 253
Quote:

It seems USB audio is enabled on SGS3:

 
"I got my sgs3 a few hours ago and just plugged it into my Topping tp30 USB DAC/pre-amp and it's playing audio through it to my speakers!!!
I'm definitely using a USB otg cable."
 
But SGS3 and E17 don't interwork even via a powered USB hub:
 

 

 
Affordable hi-fi rig:
 
music stored on SGS3 > SGS3 player > digital audio stream >> USB cable >> USB DAC/amp Topping TP30 >> speakers
 
 
 
4390932743_0678a33643_o.jpg
 
6866862249_0ba63b9354_b.jpg
 
6866862417_2cd4f86179_b.jpg
 
 
Keep lobbying for the Android USB audio standardisation (i.e. USB DAC as a standard USB device, like a USB mass storage device, for Android smartphone/tablet).
 
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