Knowledge Base Director Content

Bluetooth Audio Relative Questions

Article ID: 0008050007 Director Mini, Director One

Q1: Why can't Bluetooth devices achieve simultaneous audio input and output?

A: Bluetooth audio supports two primary working modes:
  • A2DP mode: Enables high-quality one-way audio transmission (e.g., headphones receiving media audio from a device) and requires master-slave role switching. This is the working mode of the Director device.
  • SCO mode: Supports two-way call voice transmission but only up to 8k/16k. The Director does not support this mode.

 

Q2: Why is the device restart required when switching Bluetooth audio input/output functions?

A: The Android system currently does not support hot-swapping of Bluetooth working modes. A device restart is necessary to reconfigure the mode, ensuring the Bluetooth function operates normally in the target mode.
 

Q3: Can simultaneous audio input and output be achieved when connecting to a phone via Bluetooth?

A: No. Currently, the Director operates in A2DP mode and does not support establishing the corresponding two-way audio connection with a phone. Therefore, simultaneous audio input and output on the phone side cannot be realized via Bluetooth.

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