Static noise after using voice mode for 1+ hours on ChatGPT Pro

So I use advanced voice a lot to study or brainstorm things and I’ve noticed recently that when I get to about 1+ hours of usage there is a sudden static noise that comes through when unprompted or just left sitting for a minute or so idly. Has anyone else experienced this? It is a sharp static noise from advanced voice. Brief, but it has been happening often recently when getting into the 1+ hour zone.