BLE Audio Gateway Selection using MAC

RE: BLE Audio Gateway Selection using MAC

Amanda Hsieh — Tue, 28 Feb 2023 16:46:19 GMT

Hi,

The feature (demo mode for switch between channel and gateway) is added after NCS v2.2.0. I would suggest you use v2.3.0 as a reference which will be released soon in March.

-Amanda H.

RE: BLE Audio Gateway Selection using MAC

edmcnicholas — Mon, 27 Feb 2023 14:12:45 GMT

So I am looking at the code you linked to and the 2.2.0 release and they are different. What release did this start in?

RE: BLE Audio Gateway Selection using MAC

edmcnicholas — Fri, 24 Feb 2023 14:37:40 GMT

ok i will look into that thanks. It looks like that is the correct area to modify.

RE: BLE Audio Gateway Selection using MAC

Amanda Hsieh — Fri, 24 Feb 2023 14:24:16 GMT

Hi,

The default demo scenario is very close to your requirement. Now a headset can switch between two gateways, by checking the device name.
Ref: https://github.com/nrfconnect/sdk-nrf/blob/a0ee1d981009e021d77ab586654123db02e1034b/applications/nrf5340_audio/src/bluetooth/le_audio_bis_headset.c#L200

And the key is in here, we can change the checking mechanism from ADV name to MAC address
https://github.com/nrfconnect/sdk-nrf/blob/a0ee1d981009e021d77ab586654123db02e1034b/applications/nrf5340_audio/src/bluetooth/le_audio_bis_headset.c#L200

It can get the MAC address from bt_le_scan_recv_info *info in scan_recv_cb().

-Amanda H.

RE: BLE Audio Gateway Selection using MAC

edmcnicholas — Fri, 24 Feb 2023 03:31:23 GMT

That would be the idea. The design would be a closed system with nrf5340 on both sides. The potential is many units in one system so we need deliberate broadcast selection for the sinks.

RE: BLE Audio Gateway Selection using MAC

Amanda Hsieh — Fri, 24 Feb 2023 03:27:01 GMT

Hi,

Are you going to work on a BIS proprietary solution and the sink side uses the MAC address to get sync with the specific broadcaster and also be able to switch to a different broadcaster? If so, that's doable.

-Amanda H.

RE: BLE Audio Gateway Selection using MAC

Amanda Hsieh — Thu, 23 Feb 2023 20:26:43 GMT

Hi,

I am working on your case and will reply later.

Regards,
Amanda H.