Fix guide · Microphone test
iPhone microphone tester
People often search for an iPhone microphone tester when callers cannot hear them. Open this page in Safari or Chrome on your iPhone, press the check and speak. If the level moves, the microphone is working and the problem is in a call app, a case or a Bluetooth link.
Quick fix checklist
- 1Open this page in Safari, press Check microphone and tap Allow.
- 2If no prompt appears, open Settings > Safari > Microphone (or Settings > Apps > Safari on newer iOS) and set it to Ask or Allow.
- 3Remove the case and clean the small holes at the bottom edge with a soft dry brush.
- 4Disconnect Bluetooth devices, which can take over the input during calls.
- 5Restart the iPhone. If the level stays flat, try the other microphones by testing with the camera app video.
An iPhone has several microphones
The bottom microphone is used for calls and voice memos, a front and a rear microphone serve video and noise reduction. If only one stops working, you may hear muffled calls or silent video. Recording a short clip with the voice recorder and the Camera app tells you which one is affected.
Why calls and apps fail but the test works
Each app needs its own microphone permission under Settings > Privacy & Security > Microphone. In calls, Control Center offers Mic Mode options such as Voice Isolation, which can sound different. If the test works, check these app settings and your Bluetooth connection first.
FAQ
Common questions
How do I test my iPhone microphone?
Open this page in Safari, tap Check microphone, allow access and speak. The level bar shows whether the iPhone hears you.
Why does the permission prompt not appear on iPhone?
Safari may have the microphone set to Deny. Open the Safari settings for websites and change it to Ask or Allow.
Can a case block the microphone?
Yes. A case, screen protector or dirt over the bottom holes can make you quiet or muffled. Remove it and test again.
Is my voice stored?
No. The test runs on your iPhone in the browser and nothing is uploaded.