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Old 16th September 2014, 09:38 PM   #1
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Default USB DAC on Android 4.0 phone/tablet!

Found this, is it old news?
https://code.google.com/p/android/is...ummary%20Stars

Mike
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Old 3rd October 2014, 03:45 AM   #2
dangus is offline dangus  Canada
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Oldish. The problem with my tablet is that it has to be rooted to enable USB OTG, and then it allegedly doesn't supply power to the outboard device, so you need to work around that. Not such a bad thing for audio, since I could presumably use a linear regulator to make a quiet 5 volts.
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Old 5th October 2014, 09:26 AM   #3
DRONE7 is offline DRONE7  New Zealand
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Is it the same as this..?
USBAudioRecorderPRO
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Old 15th October 2014, 03:12 PM   #4
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Checkout USB Audio Player Pro.

They use their own USB driver and are passing the Android mixer
by.

I do have it. And I think it sounds better then any other app I tried (Neutron/Poweramp etc.).

Certain mobile devices have the UAC2 compatible standard Android/Linux USB driver enabled by default. Your compliant USB DAC will be recognized without having USB audio player pro up.

However. If you don't pass the Android mixer by your data will mangled, resampled... A base Android is not known for doing this very well.

There are annoucements that special care has been taken about all this on Android L. The USB driver supposedly will be enabeld by default.


Good luck.
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Old 15th October 2014, 04:01 PM   #5
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I have used both products, usb recorder pro and usb audio player. Both work with the 2 budget dac's I have and support 24/96. The problem I encounter currently with both products is that neither will stream from my NFS music server. The audio files must be on the android device. I have contacted the developer and "network playback is a feature they will implement in the future".
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Old 15th October 2014, 04:54 PM   #6
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I just figured that current USB Audio Player Pro (UAPP) has a networking feature implemented. I havn't tried it myself.
If you have a Samba/Cifs share in the network it might work.

Perhaps you could also mount a network share via ES File explorer. That mount works for sure. I have it up'n running on a non-rooted LG G2.
Not sure though if you can access the mountpoint from UAPP.

Cheers
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Old 15th October 2014, 05:31 PM   #7
sangram is offline sangram  India
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USB audio Player did not work correctly for me. Tried Benchmark DAC2, which does not use USB power and Audioquest Dragonfly which does. Devices used were LG Optimus G Pro and a cheap Chinese tablet, former runs Kitkat and other uses JB. The LG does not recognise either device but does stop playing its internal speaker. The Chinese tablet sees the DAC and plays sound through it but in summed mono mode.

I asked for a refund. Will wait a few months to see how that develops.
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Old 15th October 2014, 05:35 PM   #8
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I just figured that current USB Audio Player Pro (UAPP) has a networking feature implemented. I havn't tried it myself.
If you have a Samba/Cifs share in the network it might work.

Perhaps you could also mount a network share via ES File explorer. That mount works for sure. I have it up'n running on a non-rooted LG G2.
Not sure though if you can access the mountpoint from UAPP.

Cheers
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Old 15th October 2014, 06:05 PM   #9
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Location: Hamilton, was Ottawa (Canada)
Quickly tried USB Audio Player Pro on my crappy Alcatel One Touch M,pop 5020T and it didn't seem to work but I'm not sure if I installed it correctly and used it correctly ...

Any one know a good 'how to' for these programs?



Some issues seem to be:

May need a newer version of android (4?)

A proper cable (recognize 'full connection' or something)

USB power, trying going through a powered USB splitter.


Would love to get this working somehow ....


Cheers,
Jeff
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Old 15th October 2014, 06:27 PM   #10
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* You definitely can forget a buspowered DAC. A hub in-between is always
worth a try.
* An up2date Android 4.3 or 4.4 is highly recommended
* The situation differs from manufacturer to manufacturer
* Standard USB cable will do
* Some DACs are not 100% UAC2 compatible. They need certain firmware
loaded (e.g. EMU 0404) or some quirks in the driver (e.g. NAD M51)

I'll write some lines if I manage to get the network mounts going on my G2.

Meanwhile you can push the UAPP folks to develop an UPNP plugin.

Cheers
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