Audio and Video frequently drops on Raspbery Pi 4

[shewitson-spt93]

• Running latest version of Dicaffeine
• Using Simple mode, Main stream only, low resolution. Plugged into monitor set to 1152x864.
• Raspberry Pi is 2gb variant (running Bullseye)
• Using wifi connection
• NDI tools Screen Capture for NDI source
• RPi has got a heatsink and official power supply
• Temperature remains below 40degC. Load is around 20%

Using bashtop I can see that the network traffic is dropping periodically. When it is working, bashtop reports ~2.0 MiB/s.

Interestingly, I've got a RaspberryPi 3B+ and the signal isn't dropping out.

[melnijir]

Hi, it can be two things - classic NDI works much better on a wired network and depending on the source, there can be slow color conversion which is done on a graphics card and you won't see it as a CPU usage.

[shewitson-spt93]

Unsure why the RPi3b works fine, but I'll just use that in future. Thanks