slight distortion in when i speak into Airpods Pro

Hi,

I've had the Airpods Pro since January. For the first time I've experienced a slight rattling or crackling distortion in my right pod.

After Googling the problem, I tried the tips of doing a 15 sec reset than disconnecting and reconnecting the Airpods to my devices, as this apparently works.

Unfortunately, the problem persists. Based on this discussion https://discussions.apple.com/thread/251017300, some have experienced the same and got a replacement.

What should I do?