"In general, human speech is jammed by giving back to the speakers their own utterances at a delay of a few hundred milliseconds. This effect can
disturb people without any physical discomfort, and disappears immediately by stopping speaking."
If you have ever heard the feedback loop that occurs sometimes when a radio show operator has a guest on the show live, and the guest has his radio on
at the same time, the show cannot proceed until this is fixed (usually by just asking the guest to turn off their sound source so it doesn't feedback
into the mic on the phone and cause a loop.)
Or perhaps you might have played a video game on voice with a friend, and had this happen. Notice that we have to fix this right away, or might as
well hang it up.
The effect is so irritating, it stops the fun right away until it is fixed. And I would not be surprised if this is where this came from. Someone
probably picked up on the effect, and decided to invent a device that would use the principle, except fine tune it even more. So that it continuously
stops you from wanting to speak, because you just can't deal with it.
While it may have been invented in Japan, I guarantee you there will be more nasty applications of this effective, forced breach of the first
amendment (right to free speech) in the US and elsewhere. How can you have any rights to speak, when with a device like this, you physically can't
speak at all?
They could quiet a rowdy crowd down in seconds with a bigger better version, if the technology was eventually sophisticated enough to detect incoming
speech from a crowd in multiple streams, and fire that right back at each person. Now granted, that has some pretty serious technical difficulties,
but those have been overcome before.
And how do you suppose they could do this? They may be able to key in on voice characteristics, in pitch, amplitude, and center frequency, for
example. This could immediately be identified as an incoming separate stream, and then appropriate high and low band pass filters applied to further
isolate and track it, separate from other voices. And once you had that going, you might be able process those same streams with the delay effect.
Sounds impossible maybe, due to ambient noise and mixing of voices. But when you understand audio at its core, the idea is not at all farfetched. It
MIGHT be possible. MIGHT.
But where it would really shine is in the case of a public speaker, with everything else quiet pretty much, and then a protestor starts clamoring.
Fire up the device and track the previously mentioned attributes, and that guy is going to shut up. Fast.
It will be very interesting to see if that is one application of this device that comes to fruition outside Japan, or even there too.
Yeah, I don't like it. AT ALL.
(visit the link for the full news article)
edit on Sat Mar 3rd 2012 by TrueAmerican because: (no reason given)