When playing around with the nrf5340 Audio demo using nrf5340 Audio eval kits, if you play a tone through USB and transmit that through the Gateway to the Headset, you can hear glitches in the audio stream as you cover the PCB with your hand and start to move away from the board. You can start to hear them from just a few feet away.
We have a product that is using this functionality and wanted to use a tone for verification and noticed this. Then I noticed its a problem on the eval kits and the nrf5340 audio demo straight out of the box. Latency is a priority to us but I made some tweaks to the Bluetooth Audio QoS retransmit values. I changed them from 2 to 8 and it definitely seemed to improve the packet loss/audio quality. Is there any documentation about whether this retransmission count is used and if it will be maxed out based on the latency maximums? I don't want to increase my latency by increasing the retransmission count and I'm assuming the device won't retransmit any longer once it reaches the packet frame time.
Thanks!
