ManyS3  S4 users are reporting audio problems after they are done talking to a person or while talking to a person. galaxy s3, galaxy s4 mic You can follow the two methods below to fix noise and mic issues.

  1. From the Home screen, tap Apps and choose Settings.

  2. Find Accessibility option and tap on it to open its settings page.

  3. Make sure the Turn Off All Sounds option is NOT checked.

  4. Go back to Settings and choose Sound.

  5. Check if volumes are all correct.

Now let’s try to go into the Galaxy S3′s noise reduction option.
  1. From the Home screen, hit Phone and press the Menu button.

  2. Choose Call Settings then Additional Settings.

  3. Uncheck Noise Reduction option.