Crackling / static developing on audio when screen recording with Quicktime
Hi,
I am using an iMac", 27", 2017 model — 3.4 GHz Quad-Core Intel Core i5. I am running on Monterey 12.7.6. I use Quicktime to capture Screen Recordings with audio using the built in mic. Initially the audio starts off fine but after a few minutes or so a crackling-static-sound starts developing on the audio. Then, eventually the video portion freezes but I still hear the crackling audio until the end of the recording. Overall everything starts out fine, but then it starts crackling and then gets worse as the recording goes on. Nothing changes in the environment that I am recording in to explain why this would be happening.
Thoughts or solutions?
iMac 27″ 5K