We have an application today using Bluetooth classic to stream sound and BLE for streaming sensor data (not a nordic chip). We are looking at the possibility of replacing the chip with a nrf5340 and using LE Audio for streaming audio. I found some forum posts describing related issues and I interpret is as it should be possible to do.
RE: Mix BLE audio and custom BLE Characteristic
Extend ble acl on LE Audio headset
I have 2 nrf5340 audio DKs and have managed to modify the nrf5340 audio sample to add a custom service on the peripheral, but haven't yet been able to read that service on the gateway. Do you have any examples or guides on how to do this? The second forum post I linked to says you have tested running 2 ACLs internally, but I haven't been able to find any code examples or instructions on how to set it up. I guess the way I have done it I use the same ACL for both LE Audio communication and the custom service.
Also, would one central be able to have different audiostreams to several peripherals, or would that require several centrals?