01
Speaker Test
Plays test tones through the left, right and both channels so you can confirm every speaker is…
Frequency Sweep Test
Glides smoothly across the whole audible range so you can hear dips, peaks and rattles in a speaker or a room.
Audio Tests
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Free, unlimited
The test starts automatically — follow the prompts above.
In short
Frequency Sweep Test is a free online tool on inputtesthub.com that glides smoothly across the whole audible range so you can hear dips, peaks and rattles in a speaker or a room. It needs no account, no download and no payment, and there is no daily usage limit. Everything is processed inside your own browser, so the data you paste is never uploaded to a server.
How to use the Frequency Sweep Test
- The test starts on its own — no button to press and nothing to install.
- Follow the prompt in the test panel and watch the readings update live.
- Press Reset to start over with a clean slate.
About the Frequency Sweep Test
The Frequency Sweep Test glides smoothly across the whole audible range so you can hear dips, peaks and rattles in a speaker or a room. It runs as plain JavaScript inside the page, which means there is no upload step, no queue and no size limit imposed by a server — the only limit is your own device.
What people use it for
- Finding rattles and resonances in a room, a car or a speaker cabinet.
- Checking a full-range speaker for dead spots.
- Testing a car audio system door by door.
Start with the volume low and raise it slowly. Sustained pure tones are far more damaging to hearing than music at the same apparent loudness, and asking a small speaker to reproduce very low or very high frequencies at volume can damage the driver.
Frequently asked questions
What should a good speaker sound like?
Roughly even in loudness as the tone rises, with no sudden jumps, drops or buzzes. Perfect evenness is unrealistic — every room adds peaks and nulls of its own, often larger than the speaker's.
A buzz appears at one frequency and then stops.
That is a resonance in something physical near the speaker rather than the speaker itself. Note the frequency shown on screen and hunt for the loose panel, window or ornament causing it.
Is the Frequency Sweep Test free?
It is free, with no account, no trial and no daily cap. Every audio tests tool on inputtesthub.com works the same way: open the page and use it.
Is my data uploaded anywhere?
No. The Frequency Sweep Test runs entirely in your browser using JavaScript. Nothing is transmitted, logged or stored, which you can verify yourself in the Network tab of your browser's developer tools.
What problem does the Frequency Sweep Test solve?
The most common reasons people reach for it: finding rattles and resonances in a room, a car or a speaker cabinet. Checking a full-range speaker for dead spots. Testing a car audio system door by door. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
Any caveats I should know about?
Start with the volume low and raise it slowly. Sustained pure tones are far more damaging to hearing than music at the same apparent loudness, and asking a small speaker to reproduce very low or very high frequencies at volume can damage the driver.
Do I need to install anything to run this test?
No installation, no extension and no driver. The Frequency Sweep Test uses the browser's own device APIs and begins as soon as the page loads, so there is nothing to press first. Press Reset at any point to start over with a clean slate.
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