Two common forms of protection are sound. [earplugs []] and [closed hearing each winter []]. These are the various application performance and quality.
Unfortunately, both ways. HPD (Hearing Protection Devices) for less. 20% of the needs of the human body. In fact, using these may cause HPD during the best and permanent damage. Although evidence is hundreds. HPD is the clear market reports show that sound costing millions around the world:.
Sound is most common occupation. Disease and the second most self-reported injury career! (According to National Campaign for Hearing Health). Sound is primarily for the deaf,. Vertigo, Jet legs and other psychosomatic diseases (although specific types of cancer found by the sound). Disable voice communication and we can none the phone conversation in a noisy environment. Government to pay billions. For the loss of productivity and loss of social security income.
Audio is one of the worst global environmental pollution. Its impact on health and comfort in life now is important. (White Paper European transport policy. 2010).
http://cordis.europa.eu/eoi/dsp_details.cfm?ID=34072.
Problems of the current HPDs is well known in the art and science, including:.
1. HPDs seal all ears, or do not allow ventilation to the ear at least. Since humans. Ears still needing to open air,. Trying to seal the ear canal which causes bio-chemical reaction that affects the physiology human body. Needles to indicate that in this case, users can not. Regular communications.
2. Because the truth before now. HPD is not convenient for the user no longer. HPD is known to be difficult by users often complain that. itches HPD and warms the ear.
3. HPDs have no protection from the puck. (Very low frequency) or infrasound. Frequency is called frequency and not the most dangerous. The solution is to have any. HPDs.
4. Does not prevent medical conditions caused by noise and transferred to the body through the ear. Tinnitus, and even disease. can not psychosomatic. Will make use of any HPD.
5. Prevent changes in air pressure and shock waves. No. The human body does not "accidentally". Rapid pressure changes and shock waves. Vertigo can cause leg and Jet aircraft for quick use of climbing off the elevator soon.
6. Bones cry is not blocked by the application. HPD. This is a sad fact for the user. HPD now. This means that when users will be even higher voice. Insert sound into some earplugs and hearing of his application through the bone.
7. NRR (or SNR) limitations. This measurement indicates that the block is limited to the amount. NRR. This number refers to the limited frequency. HPD attenuates.
In the case of constant sound of the audience. NRR = 30 to 120dB, even leave them unprotected and exposed to damage hearing. Recent reports have shown a clear gap between measurements. NRR NRR field laboratory and real.
So no wonder that European officials. whish converted to a better standard, but none is unfortunate.
It looks like that offer. HPDs currently in "No Theory".
Although not close to the ear together electronically winter protection needed. (Most of the reasons mentioned above).
Led to the conclusion that science is today. Theory that provides full protection to listen to the audio frequency and hazards. no.
Some understanding of the phenomenon are not clear, but sound.
The fight eye with full day coverage by type of equipment, or respiratory or ear, and the head itself prevent hearing all still far from providing adequate solutions.
Industrial PPE (Personal Protection Equipment). The company invested millions in R & D hopes for a solution to this dangerous world, many academic articles focusing on the urgent need for such. The solution shows the importance of this phenomenon.
Fortunate to find real hope:.
Israeli scientists called Professor Adam. Aloofi revealed in his 18 years of research the truth about voice and sound protection. It looks like cracked Aloofi genome of sound. As a member of the Audio Lab. Salford University, UK (next to Manchester),. Aloofi that the test has been developed very grateful new biological theories. Aloofi given size and acoustical. in testing people found dead this sound. A clear cause irreversible damage, but thanks devices. Aloofi their full protection and easy communication, while the sound itself was not up to protect. 78dB.
Theory and equipment requirements will be between people. 2009 as part of the revolution. acoustic Bio.
