Quick answer
What Tone Generator tells you
Generate a user-controlled short sine tone for basic speaker checks with conservative frequency and volume limits.
- Observed here
- Frequency from 100 to 10,000 Hz, Low default volume, Play and stop controls.
- How to interpret it
- The frequency control sets a synthesized browser tone. An inaudible frequency may reflect the output device, volume or environment; it must not be used to assess hearing.
- Important limit
- Results reflect events and values exposed by this browser.
- Data handling
- Test values are calculated in this browser. Device Test Bench does not store a test result or create a device fingerprint.
Useful next comparison: Use a comfortable low volume, stop playback before changing equipment and avoid prolonged or high-volume tones.
Understanding the result
What a result means
The tool creates a short sine tone at the chosen frequency and conservative gain. It is useful for basic playback comparison, not hearing thresholds, acoustic calibration or speaker power testing.
Confirm the pattern by repeating frequency from 100 to 10,000 hz. Results reflect events and values exposed by this browser.
How to use this test
- Set system volume low.
- Choose a moderate frequency.
- Press Play for a short sample.
- Stop immediately if the sound is uncomfortable.
What this test checks
- Frequency from 100 to 10,000 Hz
- Low default volume
- Play and stop controls
- Automatic duration limit
What this test cannot check
Results reflect events and values exposed by this browser.
This test does not certify hardware or replace professional inspection.
Not intended for hearing, medical or calibration use.
Avoid high volume, especially with headphones.
Common problems and troubleshooting
Begin at low system volume and a moderate frequency, then change one setting at a time. Stop immediately for distortion or discomfort; compare another output rather than increasing volume to overcome silence.
- Repeat the same observation. Focus the test surface and repeat “Frequency from 100 to 10,000 Hz” three times under the same conditions.
- Change one condition. Compare “Low default volume” after changing only the relevant port, connection, browser setting or application.
- Rule out focus or interception. Close overlays and reserved shortcuts, keep the page visible and confirm that the live indicator changes during the action.
- Keep the result within its limit. Results reflect events and values exposed by this browser.
If the same pattern remains across relevant applications and connections, give the manufacturer or a qualified technician the repeatable observations instead of a guessed fault label.
Browser compatibility
Oscillator and gain nodes are standard Web Audio features, but playback still requires a user gesture. Hardware frequency response, Bluetooth processing and system equalization occur after the browser signal.
| Browser | Reference status | Evidence basis | Version | Notes | Checked |
|---|---|---|---|---|---|
| Chrome | Supported | Expected baseline | Not recorded | Feature detection is authoritative; permissions, platform and device support can change availability. | 2026-08-27 |
| Microsoft Edge | Supported | Expected baseline | Not recorded | Feature detection is authoritative; permissions, platform and device support can change availability. | 2026-08-27 |
| Firefox | Partial | Expected baseline | Not recorded | Feature detection is authoritative; permissions, platform and device support can change availability. | 2026-08-27 |
| Safari | Partial | Expected baseline | Not recorded | Feature detection is authoritative; permissions, platform and device support can change availability. | 2026-08-27 |
Privacy information
Test values are calculated in this browser. Device Test Bench does not store a test result or create a device fingerprint.
The public analytics allowlist does not accept pressed keys, typed text, pointer coordinates, media labels, device IDs, recordings, video frames or controller input. Test results are not written to LocalStorage.
Primary technical references
These specifications define the browser signals used by this test. They document web-platform behavior; they do not certify a particular device.
Frequently asked questions
Is this Tone Generator free?
Yes. The test works without an account, download or payment.
Is my test data uploaded?
Test values are calculated in this browser. Device Test Bench does not store a test result or create a device fingerprint.
Does this result prove my hardware is faulty?
No. It shows what the browser can observe. Repeat the test, compare another browser or device, and seek qualified support when the result matters.