The work is executed in the page through browser workers, WebAssembly, Web Audio, or WebGPU as stated.
HEAR / AVAILABLE NOW
Hearing Test
A careful relative hearing screen. Check relative left and right audibility from 250 Hz to 8 kHz with safe calibration and a results chart.
HEAR / local workbenchHeadphones required · non-diagnostic
250 Hz
500 Hz
1k Hz
2k Hz
4k Hz
8k Hz
Left Right · relative browser level, not dB HL GUIDE / online hearing test
What does hearing test do?
This online hearing test is an uncalibrated relative screening. It plays short, gently ramped tones separately to the left and right channels, increases a capped browser amplitude when a tone is not heard, and charts the relative device level selected at 250 Hz through 8 kHz. It cannot convert those values into clinical dB HL.
RELATED USES
- hearing screening online
- left right ear test
- frequency hearing check
- 250 Hz to 8 kHz test
FIELD NOTES / 01
A real local processor, not a decorative upload box
Channel-isolated Web Audio tone screen runs after you choose a source and explicitly start the operation. The audio samples remain in browser memory; SoundTools does not send the selected media to an application endpoint.
Use headphones in a quiet room, begin with the quiet calibration tone, never raise system volume during the sequence, and answer only after each short tone finishes. Results remain available for preview and download only in the current tab. Closing or refreshing the page releases those temporary objects.
PROCESS / THREE STEPS
How to use hearing test
- 01
Prepare a consistent listening setup
Use headphones in a quiet room, set a comfortable low device volume, play the quiet calibration tone, and read the non-diagnostic notice before starting.
- 02
Set the useful controls
Use headphones in a quiet room, begin with the quiet calibration tone, never raise system volume during the sequence, and answer only after each short tone finishes.
- 03
Process, check, and export
Run the local processor, inspect the status and preview, then save On-screen relative left/right chart when the result is ready.
SIGNAL NOTES / VERIFIED BEHAVIOR
What this tool actually does
Clear limits are part of a useful tool. These values describe the processor currently running in this page.
Runtime and model assets may be downloaded, but the selected file is not attached to those requests.
The dedicated workbench exposes only formats it can actually produce in the current browser.
USE CASES / 02
Useful reasons to open hearing test
- Relative self-check
Notice obvious left/right or frequency differences under one unchanged device setup.
- Headphone channel check
Confirm tones route separately to the expected ear.
- Prompt for professional care
Use a concerning or asymmetric result as a reason to seek a proper assessment, not as a diagnosis.
QUESTIONS / PRACTICAL ANSWERS
Questions about this tool
Answers based on the current browser processor—not promises about a future version.
01Is my audio uploaded for processing?
No. Audio samples stay in browser memory. The page may download a codec or model asset, but it does not send the selected file with that request.
02Why can the first run take longer?
This tool uses Channel-isolated Web Audio tone screen. A browser may need to download and initialize that runtime before the first operation; later runs can reuse cached assets.
03Can I preview the result before saving?
Yes. Audio-producing tools expose local result players, while analysis and transcription tools show their detected data before download.
04What happens when the browser is unsupported?
The workbench reports the missing capability instead of uploading the media or pretending that processing is still running.
05Do I need an account or install?
No. The tool opens directly in a compatible browser, requires no SoundTools account, and creates its temporary working state on the current device.
06Is this a medical hearing test?
No. It is an uncalibrated browser screening and does not report clinical dB HL or diagnose a condition.
07What should I do if one side looks very different?
Stop repeating loud tones and arrange a professional hearing evaluation, especially for sudden or concerning changes.