"
eXtream Software Development has managed to get USB audio recording working on Android 3.1 or higher devices! By writing a custom USB audio driver from scratch, both
USB audio playback and recording
will be possible for a lot of USB audio standard compliant devices.
The driver will completely bypass Android including Android's incapable audio system. The advantages of USB audio and our driver are plenty:
* Finally you will have decent connectivity to your Android device: connect mics with XLR, line inputs, instrument levels inputs, depending on your USB device
* Playback and record in 16 or 24 bit
* Lower, but more important, predictable latency that can fully and automatically be compensated for
* Zero-latency monitoring on the devices that support it
* Control hardware level input gain on the devices that support it
* Multitrack recording capability
The USB audio recorder will be available as a stand-alone app and the USB audio driver will be available as an in-app purchase in our flagship multitrack audio sequencer, Audio Evolution Mobile. Currently, only USB audio spec 1.0 is supported, but this will be solved in a subsequent release. Both USB 1.1 and USB 2.0 devices will be supported however.
Requirements will be an Android 3.1 or higher device and the device must support USB 'host' mode. Most recent devices have 'host' mode luckily. If your device has a micro-USB port, you can connect to full-size USB using a so-called USB OTG cable. No rooting of your device is required.
Testers wanted:
If you are interested in a pre-release alpha version and meet the following requirements, please send an email to info AT audio-evolution.com:
You have one or more Android devices that meet the requirements
You have one or more USB audio devices
You are fluent in English writing
You usually answer to emails within 2 days"
http://www.kvraudio.com/forum/viewtopic.php?t=363102&sid=9bca34c06e839d7458f2fa6ae8a1bc3a
"Ok, so far I've got the following devices working:
Lexicon Omega
Lexicon Alpha
iMic
Behringer UCA222
M-Audio Fast Track
Note that probably a lot more devices are working, but I simply cannot afford to buy them all. Just like the M-Audio Fast Track that I got in this week: I just plugged it in and it worked!"
A standard USB DAC reportedly interworking with the Android-powered smartphone Samsung Galaxy S III:
stock Samsung Galaxy S III > digital USB audio out >> USB OTG cable (micro-A plug inserted in the S III) >> standard USB DAC >> amp >> headphones
.
Behringer UCA222 (USB DAC/amp):
http://www.behringer.com/en/Products/UCA222.aspx
http://www.computeraudiophile.com/f6-dac-digital-analog-conversion/usb-audio-enabled-android-powered-samsung-galaxy-s-iii-12338/#post171651