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  2. Impulse noise (acoustics) - Wikipedia

    en.wikipedia.org/wiki/Impulse_noise_(acoustics)

    The U.S. Department of Defense has established criteria for equipment that produces impulse noise at levels above 140 dB peak SPL and requires hearing protection be worn to prevent damage human ears. [4] An impulse noise filter can enhance the quality of noisy signals to achieve robustness in pattern recognition and adaptive control systems.

  3. Acoustic trauma - Wikipedia

    en.wikipedia.org/wiki/Acoustic_trauma

    Acoustic trauma is an injury to the inner ear that's often caused by exposure to a high-decibel noise. This injury can occur after exposure to a single, loud noise or from exposure to noises at significant decibels over a longer period of time. [medical citation needed] Many cases have included a period of reduced hearing after exposure to loud ...

  4. Gunfire locator - Wikipedia

    en.wikipedia.org/wiki/Gunfire_locator

    Boomerang, a gunfire locator, being used by British forces in Afghanistan Shooting Detector Diagram. A gunfire locator or gunshot detection system is a system that detects and conveys the location of gunfire or other weapon fire using acoustic, vibration, optical, or potentially other types of sensors, as well as a combination of such sensors.

  5. Sound intensity - Wikipedia

    en.wikipedia.org/wiki/Sound_intensity

    Sound intensity, also known as acoustic intensity, is defined as the power carried by sound waves per unit area in a direction perpendicular to that area, also called the sound power density and the sound energy flux density. [2] The SI unit of intensity, which includes sound intensity, is the watt per square meter (W/m 2).

  6. Noise-induced hearing loss - Wikipedia

    en.wikipedia.org/wiki/Noise-induced_hearing_loss

    The ear can be exposed to short periods of sound in excess of 120 dB without permanent harm — albeit with discomfort and possibly pain — but long term exposure to sound levels over 85 dB(A) can cause permanent hearing loss. [31] There are two basic types of NIHL: NIHL caused by acoustic trauma; NIHL that gradually develops.

  7. Eminem Faces Backlash After Using Realistic Gunshot Sounds ...

    www.aol.com/news/eminem-faces-backlash-using...

    The gunshots had some in the crowd freaking out, in light of recent mass shootings.

  8. Long-range acoustic device - Wikipedia

    en.wikipedia.org/wiki/Long-range_acoustic_device

    A long-range acoustic device (LRAD), acoustic hailing device (AHD) or sound cannon is a specialized loudspeaker that produces sound at high power for communicating at a distance. It has been used as a method of crowd control , which has caused permanent hearing damage , having an extremely high decibel capacity (up to 160 dB measured at one ...

  9. Shooting range - Wikipedia

    en.wikipedia.org/wiki/Shooting_range

    A shooting range, firing range, gun range or shooting ground is a specialized facility, venue, or field designed specifically for firearm usage qualifications, training, practice, or competitions. Some shooting ranges are operated by military or law enforcement agencies, though the majority of ranges are privately owned by civilians and ...