My project goal is to broadcast four different languages simultaneously using Auracast. Each language will be transmitted on its own BIG so that Auracast-compatible devices, such as Galaxy Buds, can select and listen to the desired language.
As a first step, I am currently trying to receive two language streams and create two BIGs.
Before starting this work, I successfully built and ran the broadcast_source sample from the nrf_audio application in nRF Connect SDK.
I have two questions:
- I would like to receive audio for multiple languages over a single USB connection by using multiple USB audio channels (or another recommended USB audio architecture). Is this the recommended approach? If so, are there any examples or documentation that I should refer to?
- Before creating multiple BIGs, my understanding is that each audio stream needs to be encoded separately in
encoder_thread()before being sent to the corresponding BIG. Is my understanding correct? If so, could you point me to the relevant source files, documentation, or examples that explain how this part of the audio pipeline is implemented?
I have tried to find documentation and examples related to these two topics, but I have not been able to find any useful references.
I would greatly appreciate it if you could provide some guidance on where I should start looking or which parts of the source code and documentation I should study.
Thank you very much.