Sofer_0718 Said:
"Airpod Pro mic muffled when on phone call: I just opened my new airpod pros and when I was on a phone call the person said the audio was muffled. I tested it out with a voice memo and it definitely was muffled. I reset the airpods, they can't be dirty I just took them out of the box."
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Troubleshooting Muffled AirPods:
A. Interference:
This is likely an error with interference. So, start here: If your AirPods Pro make crackling or static sounds - Apple Support
B. If Used in a Closed Space:
If you are using these in a closed room, then echos can come about.