Bleep sound effect

A flat 1kHz sine with hard edges at both ends. That pitch is the broadcast standard, which is why it reads as censorship rather than as a beep.

Thin, synthetic, and over immediately. It reads as a machine acknowledging something rather than as a word being covered.

Two identical tones with a small gap. The repeat reads as confirmation, where a single tone reads as a simple acknowledgement.

The same tone held far longer than one word needs. The length is the joke, because it implies a great deal was cut.

Three tones stepping upward. Rising pitch reads as progress or success, so it suits a machine finishing rather than blocking something.

Low, flat, and blunt with no brightness. Falling or dull tones read as refusal, which is the opposite of the rising version.