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 along with Eval kit or USB dongle that STMicro offers.

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

[STTwo-32 · Accepted solution]

Hello @tech_stuff @and welcome to the ST Community.

First, i think that the hearing add you want to use does support Classic Bluetooth and not BLE (Bluetooth Low Energy). So, please Check this before. And if this is correct, you can’t use any STM32 with integrated BLE capability since our product supports only BLE and not Bluetooth. If it does support BLE, the Best suggestion for any audio transmission over BLE Will be our STM32WBA Series. That have been made for BLE Audio applications. For the applications, We don’t have exactly the same app. But, the BLE examples on our STM32WBA55G-DK1 should help you to understand How it works and How to do it for a BLE Audio app.

Best Regards.

STTwo-32

[tech_stuff]

Hello

My hearing aid does not support Classic Bluetooth as the same is mentioned on the company website. You can find the details here.

https://www.oticon.global/hearing-aid-users/support/information/bluetooth

Is BLE "Bluetooth Low Energy"?

[STTwo-32]

In this case also, my previous post should do the job.

Best Regards.

STTwo-32

[Andrew Neil]

Thanks for the link - would've been helpful to give it in the initial post.

Yes, BLE = Bluetooth LE = Bluetooth Low Energy.

Some ST material on AuraCast (LE-Audio):

https://www.st.com/content/dam/static-page/events/ces-2024/27-auracast-bluetooth-le-audio-evolves.pdf

https://wiki.st.com/stm32mcu/index.php?title=Connectivity:Introduction_to_Bluetooth_LE_Audio&oldid=50896

[tech_stuff]

Hi

I have been going through the entire list in the link https://wiki.st.com/stm32mcu/index.php?title=Connectivity:Introduction_to_Bluetooth_LE_Audio&oldid=50896 and have some queries.

Is there a simple Eval kit with USB dongle rather than a full Eval kit?

Also is STM32WBA55G-DK1 the only Eval kit solution for BLE with audio streaming?

[STTwo-32]

The only evaluation platforms for the STM32WBA series are the STM32WBA55G-DK1 and the NUCLEO-WBA55CG. I've recommended the STM32WBA55G-DK1 since it includes all necessary peripherals to be able to create an Audio app (connectors, codec,...). For the USB Dongle, it is available only on the P-NUCLEO-WB55 kit (not available on any kit based on the STM32WBA).

Best Regards.

STTwo-32

[Andrew Neil]

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@STTwo-32 wrote:

I've recommended the STM32WBA55G-DK1 since it includes all necessary peripherals to be able to create an Audio app (connectors...)

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Including an audio CODEC - CS42L51:

https://www.cirrus.com/products/cs42l51/