What cause this strange noise recorded from my mic? - Swift SF314-43

Dzulkarnain
Dzulkarnain Member Posts: 3 New User
edited November 2021 in Swift and Spin Series
A strange sound is recorded on my mic. Sometimes the sound goes away, then comes back. 
Here's the recording
https://drive.google.com/file/d/1lXYlKe-yyoXWcQvyjqBfjW158HxIsT3u/view?usp=sharing

​//Edited the content to add model name.   ​

Answers