What's a Speech Jammer?

The speech jammer records a person's voice and plays it back with a slight time delay (a few hundred milliseconds). ... The speech jammer is composed of a directional microphone, a time delay integrated circuit, and a directional speaker to play the sound back.

What is a speech jammer for?

The "SpeechJammer" device uses a direction-sensitive microphone and speaker to silence talkers with their own words — a psychological trick that creates a delay between the time talkers speak and the time when they hear the words coming out of their mouths.

How does Speech Jammer gun work?

The device works by "shooting" the offending voice back at the source. Users can literally aim at a target and pull the trigger. "In general, human speech is jammed by giving back to the speakers their own utterances at a delay of a few hundred milliseconds," the researchers said in the paper.