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Post by Hexspa on Jun 1, 2017 5:39:15 GMT
I hang out at malls, occasionally.
I've noticed harsh FM-type high frequency sounds at certain places and/or times.
One place was a seating area near the restrooms by the food court. That was a single drone.
Tonight I was outside a mall and, after it had closed and got quiet, I noticed a repetitive minor third; again with an unsynced FM tone.
At first I just noticed it. Then I determined the interval. Then I was curious.
Then I felt utterly repulsed and had to leave.
So is this a known tactic to reduce loitering?
-m
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Post by Ethan Winer on Jun 1, 2017 18:09:41 GMT
I think that HF noise is related to alarm systems - burglar, fire - something like that.
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Post by arnyk on Jun 1, 2017 21:44:23 GMT
I hang out at malls, occasionally. I've noticed harsh FM-type high frequency sounds at certain places and/or times. One place was a seating area near the restrooms by the food court. That was a single drone. Tonight I was outside a mall and, after it had closed and got quiet, I noticed a repetitive minor third; again with an unsynced FM tone. At first I just noticed it. Then I determined the interval. Then I was curious. Then I felt utterly repulsed and had to leave. So is this a known tactic to reduce loitering? -m "The Music Mosquito is a complete music system that will relay Royalty free Classical or Chill-out music that would keep the teenagers away to some extent" More examples exist. Google is your friend |
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Post by Ethan Winer on Jun 5, 2017 14:21:12 GMT
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Post by Hexspa on Jun 5, 2017 20:33:52 GMT
I've heard of Classical being anti-teen loitering.
I don't think the continuous one note drone at the South Bay Galleria Mall is an alarm; not to sure about the repetitive minor third at Del Amo.
Regardless, it was highly effective.
I could've googled it - but to what effect? I already know that sound is used in psychological warfare. Everyone knows about taste in music. I posted to get feedback from individuals who may be specifically knowledgeable.
Anyway, if I had a fortress to guard from particular demographics, now I know a solution.
-m
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