Blog
Tests
Guides for testing your keyboard, mouse, screen, sound, network and other hardware, and for fixing what the tests find.
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Tests
Why a fan sounds louder in a small room
Learn why a fan can seem louder in a small or empty room, how to compare sound levels fairly, and which room changes can reduce the noise.
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Tests
How to evaluate background noise for a language exam
Measure room noise, compare possible exam spots, and find practical ways to make your voice clearer before a language speaking test.
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Tests
What to check before hosting a quiet online class
Check room noise, microphone placement, and call settings before class, then use a browser noise meter to spot distractions students may hear.
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Tests
Why a cabinet door vibrates at low bass notes
Find out whether low notes are making a cabinet door, loose item, or speaker rattle, then stop the noise with a few safe checks.
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Tests
How to find a loose object behind a speaker
Use a slow bass sweep to make a loose object behind a home theater speaker reveal itself, then isolate the source before moving or repairing anything.
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Tests
Car dashboard buzzes with music: what to inspect
Use a slow bass sweep and simple listening checks to find whether a dashboard buzz comes from a speaker, loose trim, or an item in the cabin.
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Tests
What to check when a computer changes owners
Check a computer's hardware before accepting it or handing it over, understand failed tests, and protect personal data during the change of owner.
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Tests
How to check a family PC before holiday travel
Run a full browser-based check, protect family files, and catch battery, keyboard, camera, or connection problems before you leave.
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Tests
Caps Lock works but letters still appear lowercase
Find out why Caps Lock lights up but typing stays lowercase, test whether the key registers, and check Shift, keyboard settings, and the app.
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Tests
What a browser keyboard test cannot measure about force
A browser keyboard test can show whether keys register, but it cannot measure how hard you press. Learn what its results mean and what to check next.
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Tests
How to inspect a used POS keyboard
Check every key, modifier, cable, and programmable button on a used point-of-sale keyboard before relying on it at a busy checkout.
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Tests
Mouse selects text when I only click: how to fix it
Find out why a single mouse click highlights text, test whether a button is sticking, and fix click-lock, double-click, or connection problems.