Tone Generator
Play a test tone at any frequencyRuns locally · nothing uploaded
440 Hz
Nearest note: A4 (0 cents)
Presets
Waveform
Channel
Turn your system volume down first. Loud or high-pitched tones for long periods can damage hearing and speakers.
Turn the volume down before playing and avoid long exposure to loud high-pitched tones. Not a medical hearing test.
Also works as:frequency generatorsine wave generatorleft right speaker testhearing test tone
How to use
- 1Set the frequency with the slider, field or presets.
- 2Choose waveform, volume and channel.
- 3Press Play; changes apply live.
FAQ
How do I test left and right channels?
Choose Left only and you should hear sound only in the left ear, then switch to Right only.
What frequencies can people hear?
Roughly 20 Hz to 20 kHz; high-frequency hearing declines with age and many adults can't hear above 15 kHz.