Voice Over BLE – Make audio streaming via Bluetooth® Smart possible

The “Voice over BLE” library implements a GATT specific profile based on the very low power Bluetooth Low Energy (BLE) specifications and aims to relay voice over the BLE radio link.

Key features

• The G726 default CODEC can be negociated at startup of the communication
• Half-duplex communication profile
• Designed for applications using digital MEMS microphones
• Easy portability across different architecture

The Voice Over BLE defines two roles: the TRANSMITTER and the RECEIVER.

• The TRANSMITTER is the device which acts as the “microphone side” and sends the voice data to a device named RECEIVER.
• The RECEIVER is the device that receives the voice data over the air from the RECEIVER and outputs it.