Bluetooth tradeoffs with Vivox
Bluetooth profile behavior in Vivox.
Vivox provides the option to opt-out of Bluetooth SCO altogether, and use Bluetooth A2DP instead.
If you use (the default), and the Bluetooth SCO connection fails, the device will route all audio (render and capture) to the speakerphone.
참고
If a Bluetooth device does not have SCO but does have A2DP, then A2DP should still work because it would not be possible to failover from an SCO-connect attempt into speakerphone mode. It is possible to individually disable Bluetooth SCO for devices in the Android Bluetooth settings.
If you use vx_bluetooth_profile_a2dp
, then voice and game audio will almost always go through a Bluetooth headset when one is connected. One exception is for headsets without high-quality A2DP audio (like older-style single-ear handsfree headsets). Those older devices will then behave similarly to when an SCO connection fails, so audio will route to the handset speakerphone.