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<blockquote data-quote="andrew gissing" data-source="post: 5578" data-attributes="member: 75">A friend sent me this link: <a href="http://arxiv.org/abs/1202.6106" target="_blank">[1202.6106] SpeechJammer: A System Utilizing Artificial Speech Disturbance with Delayed Auditory Feedback</a>There is a pdf article there to download and a link to a youtube video which purports to show the device in action.In short, microphone picks up speech of subject, delays it by an amount of time, then outputs to a speaker aimed at the subject.The delay time is based on speed of sound, distance to subject, and the desired time for subject to hear the result. This is typically up to a few hundred milliseconds.The premise being that the subject hears the reflected speech and causes them to stumble/ stutter because the sound is arriving later than when their ears expect to hear it.I&#039;m trying to figure out if this is a real article or some kind of academic joke. As live sound guys we all know about delays ranging from 80 to 250 milliseconds; we know what that sounds like and musicians work with that frequently with slap back echos off nearby surfaces, intentional vocal delays like slapback or 1/4 note and so on.If the premise of the article is true, then is singing different than speaking ? Are sound guys and muso&#039;s more switched on / can factor this in when hearing ourselves delayed ?I&#039;m also thinking back to bad telephone lines where I hear what i&#039;m saying with a delay. That didn&#039;t cause me to stutter.Thoughts ?andrew</blockquote>

[QUOTE="andrew gissing, post: 5578, member: 75"] A friend sent me this link: [url=http://arxiv.org/abs/1202.6106][1202.6106] SpeechJammer: A System Utilizing Artificial Speech Disturbance with Delayed Auditory Feedback[/url] There is a pdf article there to download and a link to a youtube video which purports to show the device in action. In short, microphone picks up speech of subject, delays it by an amount of time, then outputs to a speaker aimed at the subject. The delay time is based on speed of sound, distance to subject, and the desired time for subject to hear the result. This is typically up to a few hundred milliseconds. The premise being that the subject hears the reflected speech and causes them to stumble/ stutter because the sound is arriving later than when their ears expect to hear it. I'm trying to figure out if this is a real article or some kind of academic joke. As live sound guys we all know about delays ranging from 80 to 250 milliseconds; we know what that sounds like and musicians work with that frequently with slap back echos off nearby surfaces, intentional vocal delays like slapback or 1/4 note and so on. If the premise of the article is true, then is singing different than speaking ? Are sound guys and muso's more switched on / can factor this in when hearing ourselves delayed ? I'm also thinking back to bad telephone lines where I hear what i'm saying with a delay. That didn't cause me to stutter. Thoughts ? andrew [/QUOTE]

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