Censor / Bleep Tone
How do I make the ‘censor’ bleep tone?
The often heard ‘bleep’ of a censor is simply a 1000 Hz sine wave.
1000 Hz is used as it has the ability to completely mask any underlying frequencies. It is also used for various alarm frequencies and other functions for this reason.
The 1000 Hz tone has been used in many scientific and brain studies for years.
To create your own censor tone, you can use any audio editing program.
In the free program Audacity, simply click on Generate > Tone. Then adjust the frequency to 1000.
Here is an example clip I did in Audacity:
