Posted by admin | Posted in mosquito control | Posted on 29-09-2009
Tags: audio, mosquito, public, security, sound

What is it?
A tone audibility of which is beyond the normal hearing range of the elderly is popularly known as the mosquito ringtone. Mosquito tone can be heard by people already in their middle age.
The origin and use
The Mosquito tone technology is originally from the device "Mosquito", developed by Howard Stapleton, especially to drive away teenagers who hang in shops in the UK. The device that Stapleton developed compound for Security Systems emitted a sound called "Teen Buzz ", which caused great annoyance to teenagers or young. But people beyond the age of teenagers remained largely affected by this modulated 17 kHz sound.
This same technology was used to develop mosquito ringtone with the only exception that the frequency remains constant to 17 kHz in this type of ringtone. With advancing age, people begin to gradually lose normal hearing. This loss of hearing due to age is known as presbycusis. The range of audibility for a teenager is not what it is for older people. This phenomenon is used in the mosquito ringtone as adolescents using this tone on their mobile phones can listen to a call or get alerted by an incoming message without people more aware.
The situation may well be included in a class setting where the student receives a call or a message on his cell phone with mosquito ringtone with the teacher does not know about it. Hence, became an instant hit with teenagers, who could now use their mobile phones freely and without interference from parents or superiors. What began as a technology for security has become a source of humor and tone mosquito Powered adolescents with "silent knowledge" they received from their mobile without others' knowledge.
Mosquito Device
The product "mosquito device" is based on the principle that high frequency sounds are not audible to the elderly can be heard by teens and may cause discomfort to them both as an element deterrent when the situation warrants. Manufactured by Compound Security, a British company, the product of 17 kHz, high-pitched sound that is more like the buzz of insects for young undermine meet elsewhere in large numbers.
Malls do not like the idea of adolescents and young space and overcrowding like that dispersal and move instead to congregate. The buzz mosquito ringtone if transmitted continuously in this age group of people who cause irritation and would continue.
The unwanted encounters in shopping malls are therefore avoided. The mosquito device to which the idea of the tone of the mosquito was derived was launched in 2005 and has since proved very useful for the business community and possessors of the law. While it is appreciated by people who benefit from it as a crime prevention measure, but has also been criticized by many as a health hazard and an affront to the rights of individuals.
Exceptions
Mosquito ringtone is not supposed to be heard by older people such as hearing ability decreases with age. However, often the elderly are reported to have been able to hear mosquito tone. Even for children and youth, the buzzing mosquito ringtone can cause damage to the auditory organs.
There are a number of original frequencies different available in different formats for free download online - and it has a guide as to how uses it on his mobile phone.
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Article Source: ArticlesBase.com - Mosquito Ringtone: Silent Knowledge
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