Download this app to your desktop
Simply generate a tone with a frequency between 1Hz and 22000Hz on your smartphone or tablet.
Use the cursor or the keyboard of your smartphone to adjust the frequency, then click "PLAY" to play the tone.
• Test your hearing and that of your surroundings by determining the range of frequencies that you are able to hear.
On average, the human ear perceives frequencies between 20Hz and 20000Hz, but this perception can deteriorate with age, especially for frequencies close to ultrasound.
• Experience the acoustic beat phenomenon: For example, launch the application on two devices and then generate a frequency of 440Hz on one and 443Hz on the other.
You will then hear a "beat" of frequency 3Hz. This phenomenon is frequently exploited by musicians to tune their instruments by ear.
• Test your speakers and other audio devices.
• This sound generator can also simulate a dog whistle to help you train your dog by producing very high pitch sounds.
The generated signal is a sine wave.