Pink noise sound while rending/export

Topaz Video AI Bugs and Issues
1

Hello, when I export a video with Topaz, it starts to hiss from my computer speakers (pink noise: not particularly loud, but clearly perceptible).
When I end the export process manually or the program, the noise stops immediately.
When the export is finished by Topaz itself, the noise fades out after 10 seconds.
This happens with every export.

Mac OS Sonoma 14.6.1
iMac 2023 with M2 chip
Topaz Video AI 5.3.3

2

Could this be your fans kicking in to keep the system cool when processing resource intensive tasks?