You can damage your hearing or your speakers if you play tones at extreme volumes.
People can’t hear sounds < 20 Hz and > 10,000 Hz very well. If you turn up the volume on your device to compensate,
you could expose yourself to harmful sound levels and your speakers to harmful currents.
To be safe, note the volume level that allows you to listen to a 1,000 Hz tone without discomfort and do not stray too far
above this level, even if you can’t hear much – especially in the high range, where your hearing is the most fragile.
Frequenciator
To change the frequency, drag the slider or press ←→ (arrow keys).
To adjust the frequency by 1 Hz, use the
buttons or press Shift + ← and Shift + →.
To adjust the frequency by 0.01 Hz, press Ctrl + ← and Ctrl + →;
to adjust it by 0.001 Hz, press Ctrl + Shift + ← and Ctrl + Shift+ →
To halve/double the frequency (go down/up one octave), click
×½ and ×2.