Open the Settings menu. Tap the magnifying glass icon in the upper-right corner. Type “System update” in the search bar, if that doesn’t display anything, try “Software update” instead. Tap the System update or Software update option. Tap the option to download and update your system.
Be careful not to stick the pin too far in and puncture anything. Alternatively, you can also use compressed air to clean the microphone hole, but be careful not to blow the dust further inside the microphone hole.
Open the Settings menu. Tap Call Settings. Look for the Noise Reduction option. If you cannot find it, tap the magnifying glass icon in the upper-right corner and search “Noise Reduction. " Not all Android devices have this feature. Tap the toggle switch to disable Noise Reduction. Restart your phone and see if the problem is fixed.
Power your phone off. Press and hold the Power and Volume Down button until your phone or tablet boots up. Make a test call or test recording.
Open the Settings app. Tap Apps Tap the menu icon ( ⋮ ) in the upper-right corner. Tap App Permissions or Permissions Manager. Tap Microphone or Microphone Permissions. Tap an app that you suspect is causing a problem with your microphone. Tap Deny to deny it microphone access.
Open the Settings menu. Tap Apps. Tap Bixby Voice. Tap Force Stop at the bottom.
A couple diagnostic apps you can download include “Device Info” and “Phone Doctor Plus. " The first time you run one of these programs you will need to grant it access to your phone’s hardware. Tap Allow when asked to allow it access.
Open the Google Play Store. Type “Microphone Amplifier” in the search bar at the top. Tap Microphone Amplifier in the search results. Tap Install below the app banner.
The first time you open the app, you will be asked if you want to allow the app to access your microphone and audio system. Tap Ok to acknowledge. Then tap Allow on all the pop-ups to allow it to access your microphone.
The first time you open the app, you will be asked if you want to allow the app to access your microphone and audio system. Tap Ok to acknowledge. Then tap Allow on all the pop-ups to allow it to access your microphone.
Increasing audio gain too much will distort the sound and deteriorate your sound quality. Start by increasing it to 2 or 3. If that’s not enough, then you can increase it further.
Speak into your phone and watch the way the wave behaves in the black box at the top. If the wave peaks reach the top and bottom of the box when you speak, you probably have too much gain. Turn it down a little. You should see small peaks in the center during silence (or ambient noise) and large peaks that reach near the top when speaking. To do a test recording, tap Rec in the lower-right corner and speak into your phone. Tap the Rec button again to stop recording. Use the Files app for your Android device to navigate to the “Microphone Amplifier” folder. You can find your audio recordings in this folder.
