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Annoyance effects of noise are minimally affected by demographics, but fear of the noise source and sensitivity to noise both strongly affect the 'annoyance' of a noise. [42] Sound levels as low as 40 dB(A) can generate noise complaints [43] and the lower threshold for noise producing sleep disturbance is 45 dB(A) or lower. [44]
Danger: Diabolik (Italian: Diabolik) is a 1968 action crime film directed and co-written by Mario Bava, based on the Italian comic series Diabolik by Angela and Luciana Giussani. [3] The film is about a criminal named Diabolik ( John Phillip Law ), who plans large-scale heists for his girlfriend Eva Kant ( Marisa Mell ).
In research conducted in 2006 focusing on the impact of sound emissions from wind turbines on the nearby population, perceived infrasound has been associated to effects such as annoyance or fatigue, depending on its intensity, with little evidence supporting physiological effects of infrasound below the human perception threshold. [41]
Distress signals are communicated by transmitting radio signals, displaying a visually observable item or illumination, or making a sound audible from a distance. A distress signal indicates that a person or group of people, watercraft, aircraft, or other vehicle is threatened by a serious or imminent danger and requires immediate assistance. [1]:
The impact of underwater sound can be reduced by limiting the sound exposure received by an animal. The maximum sound exposure level recommended by Southall et al. [54] for cetaceans is 215 dB re 1 μPa 2 s for hearing damage. Maximum sound pressure level for behavioural effects is dependent on context (Southall et al. [54]).
It provided post-production sound design, sound editing and ADR in Hollywood. The editors recorded their sound effect library from 1984 to 2004, worked on more than eighty feature films, and earned a number of awards and nominations from the Academy Awards, Emmy Awards, British Academy Film Awards and Golden Reel Awards.
However, sirens are designed to sweep the frequency of their sound output, typically, no less than one octave. This sweeping minimizes the effects of phase cancellation. The result is that the average sound output from a dual speaker siren system is 3 dB greater than a single speaker system.
USS Iowa (BB-61) fires a full broadside volley during a target exercise near Vieques Island, Puerto Rico, 1 July 1984, showing the muzzle blast from its 16 inch main battery and the pressure effect on the water surface surrounding the ship. A muzzle blast is an explosive shockwave created at the muzzle of a firearm during shooting.
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