The 18000 Hz frequency is categorized under Hearing Tests. It is known for: A very rare frequency for human audibility, indicative of exceptional high-frequency hearing. Also: Near the upper limit of human hearing, often used as an extreme high-frequency test..

Our free online tone generator allows you to play this 18000 Hz frequency instantly. Use the controls above to adjust the volume or switch waveforms (sine, square, sawtooth, triangle) to hear the different timbres.