Why do smartphones have 2 microphones?

2 Answers. The second microphone is used for noise cancelling. The phone uses it to listen to the external environment (not including your voice), so that it can filter that out from the sounds it hears using the main microphone.

How do I clean the microphone on my phone?

How to Clean Your Mobile Phone Microphone

1. Use a toothpick. Insert the tip of the toothpick into the microphone hole.
2. Use a toothbrush or paintbrush. Opt for a super-soft bristled toothbrush if you’re wary of using a toothpick.
3. Use compressed air.
4. Use an electronics cleaning putty.
5. Other ways to improve audio quality.

How do I turn on the microphone on my smartphone?

Settings. Tap Site Settings. Tap Microphone or Camera. Tap to turn the microphone or camera on or off.

Which mobile phone has best microphone?

With a Recording score of 74, the Honor V30 Pro delivers the best recording performance we’ve measured to date, with no fewer than three category-leading sub-scores (Timbre, Spatial, and Dynamics), thanks to exemplary frequency response, well-preserved dynamics, and excellent spatial rendering.

What is back mic?

The rear mic is used when recording video, and I also believe it is used for noise cancellation.

How do I fix the microphone on my Android phone?

Ways to Fix Your Android Mic Issues

1. Restart and Check for Updates. Sometimes the easiest solution is the best solution.
2. Clean Your Phone’s Microphone.
3. Configure Sound Settings.
4. Check for Third-Party App Interference.
5. Take It to a Technician.

How do I unmute my microphone?

Step 4: Unmute or increase microphone volume

1. Select the Windows icon.
2. Select Settings.
3. Select System.
4. Select Sound.
5. Select the Device properties option under Input.
6. Select Additional device properties under Related Settings.
7. Select the Levels tab. There is a mute symbol next to the audio icon if the volume is muted.

How do I turn my mic on?

Go to Start → Settings → Privacy → Microphone. Click Change to enable the microphone access for the device in use. Under “Allow apps to access your microphone”, switch the toggle to the right to allow applications to use the microphone.

How can I test my microphone on Android?

Procedure

1. Open the Camera app.
2. Tap the Record button.
3. Speak into the phone.
4. Tap the Stop button.
5. Tap the video thumbnail in the bottom right corner.
6. Tap the Play button.
7. Listen to the video (make sure your media volume is turned up)
8. Tap Pause or the Home button to stop the video.