Online Tone and Frequency Generator

Generate a tone, choose its waveform, run a custom frequency sweep or download a WAV file.

  1. 1

    Prepare

    Choose the right audio output. Start at a comfortable volume.

  2. 2

    Test

    Choose a setting and play a short test.

  3. 3

    Compare

    Listen again at the same volume and compare.

Frequency generator

Start at a low volume. Adjust the tone while it plays.

440Hz
20 Hz20 kHz

WAV download uses the selected tone, waveform, volume and test length.

A good test starts with a fair comparison.Test speaker
Cannot hear the test sound?
  1. Check the device media volume and whether this browser tab is muted.
  2. Make sure sound is routed to the intended speaker or headphones. Bluetooth can send it elsewhere.
  3. Stop, then tap Play again. Try another current browser if playback is still blocked.

The tool volume slider changes this test only. It cannot change system volume or select a physical top or bottom phone speaker.

What the tone generator does

FREQUENCY

Choose a tone in Hz

Choose a frequency in hertz and play a steady tone through the active output.

OUTPUT

Check which tones your speaker plays

Compare how clearly different frequencies play through a speaker or headphone.

SAFETY

Set a comfortable tone volume

Start low. Loud or uncomfortable tones should be stopped immediately.

When to use a frequency generator

Use a frequency generator for basic speaker checks, finding rattles or resonances, comparing headphone response, or testing a selected tone. For stereo channel problems, use the left and right speaker test. If sound became muffled after light moisture, try the water eject sound for a muffled phone speaker.

Tips for a clear result

  • Start at low volume.
  • Avoid long loud tones.
  • Increase frequency gradually.
  • Stop if the sound is uncomfortable.
  • Do not use extreme levels to test hearing.

What your tone test result means

Why is a tone quiet or missing?

Speaker response, headphone response, device limits, or hearing sensitivity can make some frequencies seem quieter.

Why does the speaker rattle?

A buzz or rattle in one range can point to a loose part, enclosure vibration, debris, or a stressed driver.

Play tones on phones, headphones and speakers

Phone & Tablet

Generate tones through built-in or connected audio.

Headphones

Compare response across selected frequencies.

Speakers

Test laptop, Bluetooth, or external speakers.

Tone generator questions

What does Hz mean?

Frequency is measured in hertz, or Hz. A higher number means a higher-pitched tone.

Can I test a speaker with a tone generator?

It can help you hear whether a speaker responds to selected tones, but it is not a lab measurement tool.

What volume should I use?

Start low and use only the level needed to hear the tone clearly.

Is this a medical hearing test?

No. A tone generator should not be used to diagnose hearing loss.