RE: About PLC (PACKET LOSS CONCEALMENT)

JONATHAN LL — Tue, 03 Jun 2025 11:56:14 GMT

Update:

Can you provide a long here?
It would help to determine the cause of the issue here.

But two possible situations here:

Since if disconnection happened, then the audio system would stop, so nothing will output from I2S.
But if it is just missed couple packets but not disconnected, then PLC should work.
If there's a quick disconnected and then connected again, the drift compensation and presentation compensation will be triggered, and it will need a shorter time to finish that, and PLC won't work in that condition, since the mute audio block will be sent, this should be able to improve.

Ref: https://github.com/nrfconnect/sdk-nrf/blob/a2386bfc84016fa571f997ac871b25bd67ca481a/applications/nrf5340_audio/src/audio/audio_datapath.c#L463

The log would help to pinpoint the cause for the issue you see.

Regards,
Jonathan

JONATHAN LL — Tue, 03 Jun 2025 10:31:56 GMT

Looking in to the issue you describe and will update.

Regards,
Jonathan