Re: USB DAC support on USB OTG enabled devices? {Please vote
Posted: Fri Dec 21, 2012 6:24 am
As far as I understand the USB Audio Recorder PRO application includes the USB audio module.
It interacts with the USB module of the Android Linux kernel via the standard interface "libusb".
http://libusb.sourceforge.net/doc/index.html
It doesn’t use the Android audio framework, and thus it can avoid the 16/44.1 audio mixing limitation.
It can support 16-bit or 24-bit streams up to 192kHz.
A USB audio source code:
http://www.alsa-project.org/main/index.php/Main_Page
https://github.com/sgs3/GT-I9300_Kernel ... /card.c#L2
https://github.com/sgs3/GT-I9300_Kernel ... /sound/usb
It interacts with the USB module of the Android Linux kernel via the standard interface "libusb".
http://libusb.sourceforge.net/doc/index.html
It doesn’t use the Android audio framework, and thus it can avoid the 16/44.1 audio mixing limitation.
It can support 16-bit or 24-bit streams up to 192kHz.
A USB audio source code:
http://www.alsa-project.org/main/index.php/Main_Page
https://github.com/sgs3/GT-I9300_Kernel ... /card.c#L2
https://github.com/sgs3/GT-I9300_Kernel ... /sound/usb