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Android Open Accessory Protocol 2.0 | Android Open …
https://source.android.com/devices/accessories/aoa2
Product IDs used in AOAv1 (0x2D00 and 0x2D01) continue to be supported in AOAv2.Audio support Caution: AOAv2 audio support has been deprecated in Android 8.0. AOAv2 includes support for audio output from an Android device to an accessory via a standard USB audio class interface capable of 2 channel, 16-bit PCM audio with a bit rate of 44100 Khz …
Building Audio Accessories | Android Open Source Project
https://source.android.com/devices/accessories/audio
Audio over USB. Android can use USB in several modes: Development. Does not support audio. Accessory. Provided by Android Open Accessory (AOA) 2.0 and provides limited audio capability, as described in Connecting custom audio over USB. Host. Enables the Android device to drive the USB bus and operate with a wide range of USB-based peripherals ...
Android Open Accessory Makes Your Android Phone and …
https://www.crutchfield.com/ISEO-rmsbcspd/learn/android-open-accessory-app-control.html
The basics of Android Open Accessory. AOA is an Android protocol that lets many Android phones running on OS 4.1 and up transfer audio to a car stereo via USB. How each stereo uses the technology can vary, but you can count on using your stereo controls to play, pause, and skip audio whether it's streaming or saved on your device.
Android Open Accessory device (audio + ADB)
https://devicehunt.com/view/type/usb/vendor/18D1/device/2D03
What s the Android Open Accessory Protocol All About?
https://www.opensourceforu.com/2014/11/the-android-open-accessory-protocol-all-about/
ADK can act as an audio accessory as supported in AOA 2.0, where audio output from the Android device is streamed to the ADK host without the need of any application in two-channel 16-bit PCM format, i.e., the Android device can be identified as a capture device by an audio sub-system like ALSA on the Linux side.
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