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Noise-related phobia are common in dogs, and may be triggered by fireworks, thunderstorms, gunshots, and even bird noises. Associated stimuli may also come to trigger the symptoms of the phobia or anxiety, such as a change in barometric pressure being associated to a thunderstorm, thus causing an anticipatory anxiety.
Night flying restrictions or night-time curfews, [1] including night flight bans, are any regulations or legislation imposed by a governing body to limit the ground-perceived exposure to aircraft noise pollution during the night hours, when the majority of residents are trying to sleep.
The fundamental principle of bass management (also called LFE crossover) in surround sound replay systems is that bass content in the incoming signal, irrespective of channel, should be directed only to loudspeakers capable of reproducing it, whether the latter are the main system loudspeakers or one or more subwoofers. [1]
From about 1900 to the 1950s, the "lowest frequency in practical use" in recordings, broadcasting and music playback was 100 Hz. [9] When sound was developed for motion pictures, the basic RCA sound system was a single 8-inch (20 cm) speaker mounted in straight horn, an approach which was deemed unsatisfactory by Hollywood decisionmakers, who hired Western Electric engineers to develop a ...
Some pets do like to watch these weird, garbled images, though. If you've got a couch potato pooch, check out services like DogTV. DogTV creates special shows made for your pets because they tweak ...
Some noise measurement standards which takes into account different times of the day are the American day-night average sound level (Ldn) standard or the European day–evening–night noise level (L den) standard. Some jurisdictions also have wider noise restrictions in the weekends or on certain public holidays. Industrial or nightlife areas ...
The day–evening–night noise level or L den is a 2002 European standard to express noise level over an entire day. It imposes a penalty on sound levels during evening and night [ 1 ] and it is primarily used for noise assessments of airports , busy main roads, main railway lines and in cities over 100,000 residents.
An effective model for noise control is the source, path, and receiver model by Bolt and Ingard. [9] Hazardous noise can be controlled by reducing the noise output at its source, minimizing the noise as it travels along a path to the listener, and providing equipment to the listener or receiver to attenuate the noise.
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