nRF5340 Audio application onboard vs external hardware codec

RE: nRF5340 Audio application onboard vs external hardware codec

Chraebs — Thu, 10 Nov 2022 06:36:05 GMT

Hi Elfving

Ok, I see. It seems that I did not differentiate between the two functionalities which are addressed by the "Codecs".

The LC3 software codec is used for encoding/decoding audio for transceiving audio via Bluetooth LE Audio.

The Onboard/external codec is used for AD/DA conversion for transceiving audio to microphone/loudspeaker.

I thought there might be a suggested design for offloading LC3 encoding/decoding from nRF5340 - this is why I got confused before.

Thanks Elfving for the outline on how to select an external HW codec in your response.

Elfving — Fri, 04 Nov 2022 10:27:25 GMT

Hello again,

[quote user=""]Is there some more description on how I can select either of the 3 LC3 codecs?[/quote]

In order to select an external HW codec, follow the steps outlined here:

[quote user=""]I'm not sure about what component is meant by "onboard hardware codec". What component is it?[/quote]

Regards,

Elfving

Elfving — Thu, 03 Nov 2022 14:59:57 GMT

Hello Matthias,

I will have to get back to you on this.

Regards,

Elfving