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Open-source USB interface: Audio Widget
Open-source USB interface: Audio Widget
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Old 26th October 2013, 10:44 PM   #2241
linuxworks is offline linuxworks  United States
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you can build it into the kernel yourself. a friend (who does android devel work) is going to try doing this and I'll report back if we are successful. you need to be rooted to replace the kernel - and its not trivial to do this - but I think it is possible to add usb audio support at some android phones, at least.
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Old 27th October 2013, 05:08 AM   #2242
hc_TK is offline hc_TK  Norway
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Quote:
Originally Posted by UnixMan View Post
Unfortunately, AFAIK Android does not include support for USB audio devices. :-(
Well, yes it can
I use my rooted nexus 7 pad with android 4.2, together with a Hegel hd2 dac.
Use this combination in my car!
Would like to compare these two dacs
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Old 27th October 2013, 07:42 AM   #2243
hc_TK is offline hc_TK  Norway
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Originally Posted by hc_TK View Post
Well, yes it can
I use my rooted nexus 7 pad with android 4.2, together with a Hegel hd2 dac.
Use this combination in my car!
Would like to compare these two dacs

Didnt see linuxworks, post.
But yes, as he sais.
It have to be rotted with a custom kernel, but this allows you to tap the digital signal directly from the pad.
And with a asynchronous dac, it sound awsome!
But if I understand it correctly, it depends on the DAC chip if it is compatible with the Pad.
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Old 28th October 2013, 09:29 AM   #2244
1audio is offline 1audio  United States
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Open-source USB interface: Audio Widget
It works with a stock SG4 or Note 2 and some other Android devices. Android does not support 24 bit audio or higher sample rates yet. You need hardware support for it as well since the phone needs to be in host mode and not all hardware supports this (like this phone).

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Old 30th October 2013, 09:54 PM   #2245
dirkwright is offline dirkwright  United States
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Is there a way to use something like this to read a USB thumb drive to drive a DAC? Thanks.
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Old 31st October 2013, 02:49 PM   #2246
1audio is offline 1audio  United States
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Open-source USB interface: Audio Widget
If you stick a PC between the stick and the USB DAC. You need a lot of stuff (software/hardware) to read and ttranslate the data on a usb stick into I2S for a DAC.

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Old 31st October 2013, 07:45 PM   #2247
DDriver is offline DDriver  Ukraine
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Friends, where I can read a full description of the project, how do I get it?
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Old 31st October 2013, 09:18 PM   #2248
1audio is offline 1audio  United States
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Open-source USB interface: Audio Widget
Here: Quantization Noise Killed The Cat

There have been a lot of details discussed but Borge has the latest info on his site.
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Old 1st November 2013, 12:20 PM   #2249
scopeboy is offline scopeboy  Scotland
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I've finally got round to hooking up the WM8804, but I can't find the schematic for Borge's AB-1.12 that showed how to hook it up! It seems to be gone from his site.

I can figure out the I2S connections, but I seem to remember a RESET line that went to some pin on the USB-I2S module. Can anyone help?
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Old 1st November 2013, 02:10 PM   #2250
MrSlim is offline MrSlim  Canada
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Originally Posted by dirkwright View Post
Is there a way to use something like this to read a USB thumb drive to drive a DAC? Thanks.
Start with something like a BeagleBone Black.
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