Speaker Cleaner & Sound Test
Fix a muffled speaker and check every part of your phone's audio in one app.
What it does
Speaker cleaner
Water mode plays a 165 Hz pulse, dust mode sweeps up to 8 kHz, and manual mode lets you pick any tone. Clean the loudspeaker or the earpiece, with optional vibration to shake out drops.
Full Audio Check
Run every test in one go: loudspeaker, left and right channels, earpiece, microphone and vibration, plus headphones and Bluetooth. Get a pass/fail report you can share as an image.
Speaker and stereo tests
Play bass, mid and treble tones and a voice sample, check left, right and both channels, and see which output is active.
Microphone test
Watch a live waveform and level, record a few seconds and play it back.
Sound meter and tone generator
Measure the noise around you in dB with min, average and max. Generate any tone from 20 Hz to 20 kHz in four wave shapes, or run a sweep.
Hearing test
Find the highest pitch each ear can hear and compare it with typical ranges by age. For curiosity, not a medical test.
Privacy
No account needed. Microphone tests run on your phone, and recordings are never saved or uploaded. Ads are provided by Google AdMob and never interrupt a running test.
Read the full privacy policySupport
Found a problem or have an idea for the app? Email me and include your phone model so I can look into it.
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