Bluetooth LE Audio pairing between Laptop and Hearing Aid

[tech.stuff]

I want to pair my Oticon hearing aid with a Bluetooth LE audio/Auracast transceiver for streaming from laptop or mobile or TV to my hearing aid. It is a personal use case and am looking at some of the chipsets with the Eval kit that Nordic Semi offers. 

Please suggest what would be the correct chipset and the Eval kit to try this.

I wish to know if there is any related example use case with any of the Eval kits that Nordic Semi provides.

[Øyvind]

Hello, 

Please have a look at the BLE Audio project page. The nRF5340 Audio Development Kit can be use to prototype audio applications. Please have a look at the nRF Connect SDK and nRF5340 Audio applications. 

If you are new to our products and SDK we recommend starting with the Developer Academy and the nRF Connect SDK courses. 

Kind regards,
Øyvind

[tech.stuff]

Hi

Can the NRF52840-DONGLE be used for BLE Audio for streaming from laptop or mobile to hearing aid.

[Øyvind]

Hello, no, the nRF5340 SoC is the official BLE Audio device that we recommend, and there is currently no support for other platforms.

That said, according to our audio team the unicast_audio_client from Zephyr upstream example can turn the nRF52840 dongle as a broadcast dongle works in 24KHz sampling rate. But it might still need some tuning since it is not optimized, and also the stream cannot be encrypted due to limited computation power.

Using nrf52840 as broadcaster:
Ref: Readme from the bap_broadcast_source example https://github.com/zephyrproject-rtos/zephyr/blob/main/samples/bluetooth/bap_broadcast_source/READM…
Ref: board file: https://github.com/zephyrproject-rtos/zephyr/blob/main/samples/bluetooth/bap_broadcast_source/board…

We are not able to provide much support for this solution.

Kind regards,
Øyvind