Oboe Bluetooth Live Effect Mute

[Atton-Risk]

Android version(s): 11(x2), 13
Android device(s):
Samsung SM-A705YN (Android 11 stock)
Motorolla Moto g 5G Plus (Android 11 stock)
RPI 400 (Android 13 with gapps)

Oboe version: 1.5.0
App name used for testing: LiveEffect (Oboe Sample)

Summary:

Bluetooth Microphones non operational within Oboe no audio output is ever produced. Despite other microphones working.

Steps to Reproduce:

1. Connect any given bluetooth headset known working
2. Launch Live Effect (Oboe Sample)
3. Select AAudio API
4. Select the bluetooth device in question as an audio input
5. Press the start button

Expected Behavior:
Upon selection of the start button an audio output to the selected output device. Typical of all other audio input devices.

Actual Behavior

No error is presented and audio is silent in any context where a bluetooth device is the input. Internal microphone operates as normal across across devices, but never for bluetooth devices.

Additional Information
Issue reproduced consistently across:
Multiple Android 11 devices (Samsung, Motorola)
Android 13 (Raspberry Pi build)
Behavior is identical across multiple Bluetooth headsets
Only Bluetooth input fails; all other input sources work correctly
Issue is not limited to LiveEffect—same behavior observed in custom implementations

Request
Is Bluetooth microphone input a supported use case for Oboe?
If so, is additional configuration (e.g. routing via AudioManager) required beyond what is shown in the sample?
If not, should this limitation be documented more explicitly?