Naked Science Forum
General Science => General Science => Topic started by: Hadrian on 12/06/2006 09:40:24
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New York Times
Jun. 12, 2006
High-pitched ring tone is for teens' ears only
In that old battle of the wills between young people and their keepers, the young have found a new weapon that could change the balance of power on the cellphone front: a ring tone that many adults cannot hear.
In settings where cellphone use is forbidden - in class, for example - it is perfect for signaling the arrival of a text message without being detected by an elder of the species.
"When I heard about it, I didn't believe it at first," said Donna Lewis, a technology teacher at the Trinity School in New York City. "But one of the kids gave me a copy, and I sent it to a colleague. She played it for her first-graders. All of them could hear it, and neither she nor I could."
Full story: http://www.nytimes.com/2006/06/12/technology/12ring.html
What you do speaks so loudly that I cannot hear what you say.
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Can it be done to rap music too? (although I hesitate to use the terms "rap" and "music" in the same sentence without some kind of negative)
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quote:
Originally posted by DoctorBeaver
Can it be done to rap music too? (although I hesitate to use the terms "rap" and "music" in the same sentence without some kind of negative)
I can clearly hear my father shouting to be to turn off all that Mick Jagger and Beatles noise, that’s not music.
It must be a time warp playing in my head. [^][:D][^]
What you do speaks so loudly that I cannot hear what you say.
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Another application of ultrasound on teenagers:-
" The Mosquito ultrasonic teenage deterrent is the solution to the eternal problem of unwanted gatherings of youths and teenagers in shopping malls and around shops. The presence of these teenagers discourages genuine shoppers and customers’ from coming into your shop, affecting your turnover and profits. Anti social behaviour has become the biggest threat to private property over the last decade and there has been no effective deterrent until now.
Acclaimed by the Police forces of many areas of the United Kingdom, the Mosquito ultrasonic teenage deterrent has been described as “the most effective tool in our fight against anti social behaviour”. Shop keepers around the world have purchased the device to move along unwanted gatherings of teenagers and anti social youths. Railway companies have placed the device to discourage youths from spraying graffiti on their trains and the walls of stations.
With an effective range of between fifteen and twenty meters Compound Security Devices field trials have shown that teenagers are acutely aware of the Mosquito and usually move away from the area within just a couple of minutes. The system is completely harmless even with long term use. The Times newspaper in England reports that the device was first used at a Spar shop in Barry, South Wales, where the owner Robert Gough was enthusiastic about the device's success in driving away the local youths. "Either someone has come along and wiped them off the face of the earth, or it's working" he is quoted as saying.
It seems that there is a very real medical phenomenon known as presbycusis or age related hearing loss which, according to The Merck Manual of Diagnosis and Therapy, "begins after the age of 20 but is usually significant only in persons over 65". It first affects the highest frequencies (18 to 20 kHz) notably in those who have turned 20 years of age". It is possible to generate a high frequency sound that is audible only to teenagers ".
http://www.compoundsecurity.co.uk/teenage_control_products.html
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Although who it would really upset is small children, so although the adults can't hear the noise, they will hear the screaming kids...
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I not detecting a little glee in that am I Dave?
What you do speaks so loudly that I cannot hear what you say.
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Hmm... I'm 23 and find the high-pitched things people fit to the side of their houses to deter cats quite unpleasant. They're not exactly loud or even entirely audible but I'm very aware of them if they go off (on movement sensors, for example going up my boyfriend's front path into the detection zone of the one his neighbours have got fitted). I suspect the ones aimed at kids would be similar, and wouldn't like to stop anywhere that had one for long. I wonder whether shopkeepers would be likely to find they're putting off some of their clientele too.
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quote:
Originally posted by Hadrian
quote:
Originally posted by DoctorBeaver
Can it be done to rap music too? (although I hesitate to use the terms "rap" and "music" in the same sentence without some kind of negative)
I can clearly hear my father shouting to be to turn off all that Mick Jagger and Beatles noise, that’s not music.
It must be a time warp playing in my head. [^][:D][^]
What you do speaks so loudly that I cannot hear what you say.
At least the Beatles and the Stones had artistic merit. They could actually play their instruments and sing; as well as them having written some of the best pop songs of all time. I don't consider ripping off other people's music and have someone talking over the top of it about how hard he is or how great he is in bed to be much of a display of talent.
And before you start on the "just a moaning old fogey" mallarkey, I happen to like most modern music including dance. It's just rap I don't like. It's basically repetitive dross.
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quote:
Originally posted by DoctorBeaver
At least the Beatles and the Stones had artistic merit. They could actually play their instruments and sing; as well as them having written some of the best pop songs of all time. I don't consider ripping off other people's music and have someone talking over the top of it about how hard he is or how great he is in bed to be much of a display of talent.
If someone can persuade lots of other people to part with their hard earned cash, then that is talent – whether it is music is another matter.
George
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Seriously you cant knock a entire genre of music (unless youve heard every single song). you have to appreciate each song or hate each song individually. But i can hear all those high pitch noises having super good ears for these things and I would hate the mosquitos, but they dont stay on all the time, shopkeepers turn them on when theres gangs hanging around
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saying that rap is not music is just completely ignorant. you can say you dont like it, thats your decision to make. but it absolutely fits the definition of music. the emotions words and voice emphasis can evoke are incredible, and the right beat can just melt your troubles away.
most rap beats arent "ripping off other peoples music". some really are, and we call this stolen music. this may be what youve heard on the radio. unfortunately thats not what rap is supposed to be and isnt what it was originally, and isnt a majority of it today.
the process of sampling used in making rap beats is a very difficult thing to do right, it involves imagination, a sort of inner ear for rhthym and timing, and a rapport with the person that will rap on it and the particular rap. alot of groups have had live musicians, like the roots. others have done everything synth.
as far as "rapping about how hard you are" unfortuneatly, youre absolutely right. that is a majority of popular rap. however, there has been and will be exceptions. much rap actually tackles a political or social subject, some is kind of beautiful free-verse poetry. the fact that rap is so loosely defined has opened the door to infinite alterations of its original form, much like rock music. rap is not "talking over" music... the performance is incredibly hard. to orate in perfect time and perfect emphasis very dense rhymes is something you couldnt do right without years of practice.
i know all this because i used to hate rap as well. all i had to do was hear good rap and open my mind a little, and realize how great it can be. now i actively write, make beats and perform in a group and it is my main passion in life.
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WEll all the rap i have ever heard has evoked an incredible desire to turn it off.
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quote:
Originally posted by gecko
i know all this because i used to hate rap as well. all i had to do was hear good rap and open my mind a little,
Same here. Yup, there's good and bad in all genres. My personal dislike is opera -- I just cannot get my head around that. But that's just me.
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Roy P
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quote:
Originally posted by Ottehg Star
Seriously you cant knock a entire genre of music (unless youve heard every single song). you have to appreciate each song or hate each song individually.
To a certain extent, that's true. However, having heard literally thousands of rap tracks (people keep playing them to me in an effort to convert me) and having heard very few indeed that I would consider demonstrate even a modicum of musical talent, I believe I am justified in saying that as a genre there is very little musical merit in rap. I will, though, give credit to Eminem, Tupac & a few others for having written some excellent lyrics.
And to follow your argument, would you consider it true that all French people speak French? (excepting mutes, of course) After all, you can't have heard every single 1 of them speak it.
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