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Audio input through USB in Android - Stack Overflow
https://stackoverflow.com/questions/42271020/audio-input-through-usb-in-android
3 Most modern Android devices can act as USB host. So you can connect e.g. USB microphone for capturing the audio. Android also contains support for usb_audio class. Use that to get access to the audio on the device. Since you have already experimented with Communication Device Class (CDC), you are aware of Android's USB host functionality.
How to enable USB "Audio Source" option on Android 9 ...
https://android.stackexchange.com/questions/225334/how-to-enable-usb-audio-source-option-on-android-9
However Android devices support audio peripherals in host mode (kernel must be built with CONFIG_SND_USB_AUDIO). Since AOA is specific to Android, such accessories aren't usable with other hosts like PCs. So there was a demand from audio peripheral manufacturers, device OEMs and ROM developers community to support standard USB audio out capability in host mode …
Enable Audio Through USB In Your Android Device - …
https://www.youtube.com/watch?v=PgNl051jm2Y
This video tutorial is on how to enable Audio through the micro USB in android devices.
How Android Mutes The Next Billions With Android USB …
https://superpowered.com/android-usb-audio-android-midi
The Android device may or may not have the appropriate audio driver to handle USB audio. If the device has a USB audio driver and Android’s media server (AudioFlinger) is configured to handle it, then audio can be managed by the Android media server. It has several severe limitations though:
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