Strange microphone noise after recording video on iPhone

"Strange microphone noise after recording video on iPhone: after i take a video and see it i hear a strange noise coming from my microphone"

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Hearing Noise from the Microphone:

How would you define "strange"? Please elaborate on your post. With a vague post, one can only provide a vague answer. So, see if anything here helps...

Troubleshooting iPhone Audio:

Save a Few. You might need to get a new speaker or microphone. But, before making that assertion, see if you can use the following links to troubleshoot this...

A Few Links that May Help:

• If you Hear No Sound or Distorted Sound from your iPhone, iPad, or iPod touch Speaker - Apple Support

• Control Audio Playback on AirPods with iPhone - Apple Support

• Adjust Audio and Visual Settings on iPhone - Apple Support

• Adjust the Volume on iPhone - Apple Support

• Volume Output: If you Can't Hear a Person on a Call or Voicemail or if the Sound isn't Clear on your iPhone

• Volume Input: if your Microphone isn’t Working or People Can’t Hear you While you’re on a Cal