Lower the volume first
Reduce system volume before playing any tone. Use the 1 kHz calibration sound to choose a quiet, comfortable level.
Generate clean audio tones from 20 Hz to 20,000 Hz, run a frequency sweep, check headphones or speakers, and try a playful high-frequency hearing age test. The guided two-interval method helps reduce guessing while keeping the experience fast, private and mobile friendly.
First play the low-volume 1 kHz calibration tone. Then start the test. Each round contains two intervals; choose the interval that contained the high-frequency tone.
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Generate a precise frequency or estimate your highest audible tone in three careful steps.
Reduce system volume before playing any tone. Use the 1 kHz calibration sound to choose a quiet, comfortable level.
Choose any frequency from 20 Hz to 20 kHz, select a waveform and channel, or run the guided two-interval ear-age test.
Use the result as a device and entertainment check. Hardware response and background noise can change the highest frequency you identify.
A complete mobile-friendly sound-frequency generator, headphone checker and “how old are your ears” experience.
Enter an exact value or use the logarithmic slider for bass, midrange, treble, high-pitch and ultrasonic-edge test tones.
Sweep upward or downward across a custom range to check speaker response, headphone dropouts, buzzes, rattles and audible limits.
One of two intervals contains the tone. Choosing interval 1 or 2 reduces simple “I think I heard it” guessing.
Route tones to the left channel, right channel or center to compare headphones and identify obvious channel differences.
Use a clean sine wave for hearing checks or compare richer waveforms for synthesizer, audio and speaker experiments.
The page creates sound locally on the device. It does not request microphone access, record audio or upload a listening sample.
A hearing age test—often searched as an ear age test, how old are your ears test, high-frequency hearing test or hearing range test—plays increasingly high tones and records the highest frequency you can identify. Younger listeners often perceive higher frequencies more easily, while high-frequency sensitivity commonly changes with age and noise exposure. However, an online test cannot separate your hearing from the frequency response of the phone, laptop, headphones, Bluetooth codec or speaker producing the sound.
CorrectionCopy therefore presents a broad, playful ear-age band rather than a medical result. The guided test uses two timed intervals, with the tone placed randomly in one interval. This forced-choice structure makes the result more meaningful than simply pressing “heard it” while watching the displayed frequency, but it still is not calibrated audiometry.
An online tone generator, audio frequency generator, sine wave generator or sound oscillator creates a steady signal at a chosen frequency. Common uses include checking whether headphones play on both sides, listening for speaker rattles, comparing bass and treble response, finding an approximate audible upper limit, testing an audio chain and producing reference tones such as 440 Hz or 1,000 Hz.
The generated frequency is mathematically precise inside the Web Audio engine, but the acoustic sound reaching your ears is not calibrated. Device speakers may roll off low bass, high treble or both; Bluetooth processing can modify the output; and some hardware can create lower-frequency distortion products that make a nominally inaudible high tone seem audible.
Volume and exposure time both matter. Begin with the device volume low, keep every high-frequency tone short and never compensate for an inaudible tone by sharply raising the level. High pitches may feel less loud even when the device is producing substantial energy. The safest response to discomfort, pressure, pain or ringing is to stop immediately.
These descriptions are practical audio-testing references, not promises about what every speaker or listener should reproduce.
| Frequency range | Common description | Typical online test use | Important limitation |
|---|---|---|---|
| 20–60 Hz | Sub-bass | Subwoofer movement, deep rumble and low-frequency sweep | Phones and small speakers often produce little real output here |
| 60–250 Hz | Bass | Bass response, cabinet rattles and speaker resonance | Room acoustics strongly change perceived bass |
| 250 Hz–2 kHz | Low and central midrange | Reference tones, speech body and general output checks | This page cannot measure calibrated loudness |
| 2–8 kHz | Upper midrange and presence | Speech clarity, treble checks and channel comparison | These tones can feel sharp; keep volume low |
| 8–12 kHz | High treble | High-frequency hearing and tweeter/earbud checks | Hardware response becomes increasingly variable |
| 12–16 kHz | Very high treble | Ear-age style tests and high-frequency limits | Age and device output both strongly affect the result |
| 16–20 kHz | Extreme upper range | Mosquito-tone and “how old are your ears” experiments | Many outputs do not reproduce this range reliably |
Use the same tool for common audio checks without installing an app.
Check 8 kHz, 10 kHz, 12 kHz, 14 kHz, 16 kHz, 18 kHz and 20 kHz with short controlled trials.
Compare left and right channels, test a stereo headset, check earbuds and listen for frequency dropouts.
Run a logarithmic or linear sweep to listen for buzzing, rattling, distortion, sudden changes and missing ranges.
Generate standard musical and technical reference frequencies with a sine, triangle, square or sawtooth wave.
Try high pitches cautiously and remember that a phone speaker or codec may be the limiting factor rather than your ears.
Use large touch controls, a quiet location and good headphones for a phone-friendly high-frequency comparison.
Continue testing audio, camera, screen, sensors, controls and everyday device performance.
It is an entertainment-style high-frequency hearing range test that estimates the highest tone you can identify and converts that result into a broad playful age band. It is not a clinical hearing assessment.
Each trial plays two intervals. One interval contains a high-frequency sine tone and the other is silent. You choose which interval contained the sound as the test moves through higher frequencies.
No. The result is a novelty estimate affected by headphones, speakers, codecs, volume, room noise and the device audio path. Only calibrated professional testing can assess hearing thresholds.
The commonly quoted nominal range is about 20 Hz to 20 kHz, but individual sensitivity varies and the highest audible frequency often changes with age, noise exposure and other factors.
Your listening device may not reproduce the tone, system processing may remove it, or your hearing sensitivity may be lower at that frequency. A single online result cannot determine which factor is responsible.
No. Keep the calibrated level low and comfortable. Do not force an inaudible frequency by increasing volume, because high pitches can be harmful even when they do not feel very loud.
Usually. Good headphones can provide a quieter, more consistent left/right listening setup, but their frequency response still varies and they are not calibrated test equipment.
Yes. Select Left ear or Right ear in the hearing test settings while using stereo headphones. Do not use channel comparisons as a medical diagnosis.
A tone generator creates a periodic audio signal at a selected frequency. This tool can generate sine, triangle, square and sawtooth waves from 20 Hz to 20,000 Hz.
Use a sine wave. Square, triangle and sawtooth waves contain additional harmonics that can make a frequency appear audible for the wrong reason.
A frequency sweep gradually changes from one frequency to another. It can help reveal obvious dropouts, imbalance, buzzing, rattling or changes in perceived output.
A logarithmic sweep spends time more evenly across frequency ratios and musical octaves. A linear sweep changes by an equal number of hertz each second.
Yes. Connect the device in system settings before opening the test. Bluetooth codecs and processing may affect extreme low and high frequencies.
No. It generates audio output only. It does not record, analyze or upload microphone sound.
Speakers, amplifiers or codecs can create distortion products at lower frequencies. If you hear buzzing rather than a clean pitch, the hardware may be distorting the requested tone.
It is a popular name for testing very high frequencies that some younger listeners may perceive more easily. Results remain device-dependent and should be kept at low volume.
No. It cannot diagnose hearing loss, tinnitus or another condition. Seek professional assessment for persistent symptoms, sudden changes or difficulty understanding speech.
The audio sample rate imposes a mathematical upper limit, and the usable output should remain below half the sample rate. The tool automatically respects the current AudioContext limit.
It works on modern mobile browsers with Web Audio support. Sound must begin after a direct tap, and output quality depends on the phone, headphones and current audio route.
Recent hearing-range results are stored locally on the current device for convenience. Audio is not recorded or uploaded. CorrectionCopy receives only an anonymous aggregate test count and rating.