There may a problem in the microphone how can I find out?

English as a Second Language Feedback, Comments and Suggestions
1

There may a problem in the microphone how can I find out
Ganesh

2

Yes, there is a problem with your microphone.[YSaerTTEW443543]

TOEIC listening, photographs: London[YSaerTTEW443543]

3

Try re-installing your sound drivers.