Increased audio latency with nRF5340 LE audio application due to presentation compensation (NCS 2.6.0)

RE: Increased audio latency with nRF5340 LE audio application due to presentation compensation (NCS 2.6.0)

Elfving — Wed, 22 May 2024 09:01:03 GMT

The configurations you've mentioned has been added here.

The presentation delay was also clamped in this PR. So it should be improved in main branch now.

When it comes to your final suggestion it's been forwarded to the right team.

Thanks again,

Elfving

RE: Increased audio latency with nRF5340 LE audio application due to presentation compensation (NCS 2.6.0)

Ahmed Moheb — Tue, 21 May 2024 16:11:37 GMT

Hi Elfving ,

I've tried to disable the presentation compenstation and I was able to measure lower latency by ~8-ms, but I didn't try to swap recv_frame_ts_us and sdu_ref_us positions which I expect to have the same effect on lateny like disabling the presentation compensation completely.

I'd not consider it a fix, because I don't know what has changed in NCS 2.6.0 which resulted this unwanted behaviour besides that I'm not sure if this case will continue for long periods of streaming.

Thanks,

Ahmed

RE: Increased audio latency with nRF5340 LE audio application due to presentation compensation (NCS 2.6.0)

Elfving — Tue, 21 May 2024 11:37:05 GMT

Thanks for the suggestion Ahmed,

I haven't looked into these latency issues myself, but I'll forward this to the developers responsible.

Have you tried this fix yourself, and seen the improvements?

Regards,

Elfving