Phone Microphone Tester

Phone Microphone Tester is a professional audio diagnostic tool that helps you

check whether your phone's microphones are working correctly. Whether your voice

sounds muffled on calls, your recordings are too quiet, or one mic seems dead,

this app helps you find out in seconds — all processed live on your device.

Modern phones have multiple microphones (bottom, top/front, and rear near the

camera). If even one is blocked by dust, lint, a case, or a hardware fault, calls

and recordings can suffer. Phone Microphone Tester lets you isolate and test each

microphone individually so you can pinpoint exactly which one has a problem.

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KEY FEATURES

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● REAL-TIME DECIBEL (dB) METER

See live sound levels on a beautiful analog-style meter with a smooth animated

needle. Track current, average, and peak levels as you speak, tap, or play sound.

● TEST EACH MICROPHONE SEPARATELY

Detects the microphones and audio inputs available on your device and lets you

switch between them — bottom main mic, top/front mic, rear camera mic, and

connected Bluetooth, USB, or wired headset mics.

● LIVE WAVEFORM DISPLAY

Watch your audio signal in real time with a smooth, responsive waveform. A flat

line while you speak may indicate a blocked or faulty microphone.

● FREQUENCY SPECTRUM ANALYZER

View a real-time frequency spectrum (FFT) to check how your mic responds across

low, mid, and high frequencies — useful for spotting a tinny or muffled mic.

● BLUETOOTH, USB & HEADSET SUPPORT

Test external microphones too. Connect a headset or USB mic and verify it's

picking up sound correctly.

● PREMIUM DARK DESIGN

A clean, modern dark interface built for clarity, with sharp instrument-style

visuals that are easy on the eyes.

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WHO IS THIS FOR?

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• Anyone who thinks their microphone might be broken or blocked

• People buying a used phone who want to verify the mics before purchase

• Content creators, podcasters, and musicians checking their audio input

• Technicians and repair shops doing quick hardware checks

• Anyone whose voice sounds unclear on calls or voice messages

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HOW TO USE

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1. Open the app and allow microphone access.

2. Speak, tap near a mic, or play a sound.

3. Watch the dB meter, waveform, and spectrum respond.

4. Switch between microphones to test each one individually.

5. A healthy mic shows clear movement; a dead or blocked mic stays flat.

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YOUR PRIVACY COMES FIRST

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Phone Microphone Tester does NOT record, save, or upload any audio. All sound is

analyzed live on your device and is never stored or transmitted. The microphone

permission is used only for real-time testing while the app is open.

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PLEASE NOTE

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Decibel (dB) readings are an approximation for comparison and diagnostic purposes.

Phone microphones are not laboratory-calibrated instruments, so values should not

be treated as certified sound-level measurements. Available microphones and

labels depend on your device model and Android version.

Download Phone Microphone Tester now and find out if your microphones are working

— in seconds, right on your phone.