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Delayed Auditory Feedback wins Nobel Price!

Posted Oct 15 2012 1:24am

This year's Ig Nobel Price winners
ACOUSTICS PRIZE: Kazutaka Kurihara and Koji Tsukada [JAPAN] for creating the SpeechJammer — a machine that disrupts a person's speech, by making them hear their own spoken words at a very slight delay.

REFERENCE: "SpeechJammer: A System Utilizing Artificial Speech Disturbance with Delayed Auditory Feedback", Kazutaka Kurihara, Koji Tsukada, February 28, 2012.

Their "discovery" is that you can use DAF to stop people from speaking. When people hear their own voices with a slight delay, they stop speaking. One proposed application is a portable speech jamming gun, for use in places like libraries, as a quiet way to stop people from speaking, since loud interruptions are more disruptive than the speech itself.

I glanced through the paper, and it does refer to DAF for stuttering
DAF has a close relationship with stuttering. DAF leads physically unimpaired people to stutter i.e., speech jamming. On the other hand, it is known that DAF can improve stuttering [1], and medical DAF devices are available [6]. We utilized DAF to develop a device that can jam remote physically unimpaired people's speech whether they want it or not. This device possesses one characteristic that is different from the usual medical DAF device; namely, the microphone and speaker are located distant from the target. [Thanks to Ora for his contribution]
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