Audio receive with nRF52832

[nrbrook]

We have an nRF52832 based device and want to add the ability to receive audio from an iPad. We want to receive all system audio without a custom App, so need to use a standard service that iOS supports. The sound can be fairly low bitrate mono though. Does this require BLE Audio? Is this supported on nRF52832?

[ovrebekk]

Hi

LE Audio is still a relatively new standard, and is not yet supported by any mobile platforms unfortunately. This includes the iPad, which will only work with legacy Bluetooth audio devices (which is not supported in any Nordic chipsets). 

Also, we have only implemented LE Audio in the nRF5340 chipset. The reason for this is partly because of the relatively high CPU requirements of the audio codec, and in part that the nRF5340 has an improved clock system that is optimized for audio applications. 

Best regards
Torbjørn

[nrbrook]

Ok thanks.

I saw this which seems to suggest iOS supports LE hearing aids (this device might qualify as a hearing aid). Do you know what GATT service this is? Is this something we could use?

developer.apple.com/.../1616624-bluetoothle

[ovrebekk]

Hi

This is a semi proprietary Apple standard to send audio data over Bluetooth LE, but it is not something that we support unfortunately. 

Most likely this standard will be replaced by LE Audio in the future, once LE Audio adoption is more common place. 

Best regards
Torbjørn