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Acoustic sources within the "jet pipe" also contribute to the noise, mainly at lower speeds, which include combustion noise, and sounds produced by interactions of a turbulent stream with fans, compressors, and turbine systems. [1] The jet mixing sound is created by the turbulent mixing of a jet with the ambient fluid, in most cases, air.
Neuronal activity at the microscopic level has a stochastic character, with atomic collisions and agitation, that may be termed "noise." [4] While it isn't clear on what theoretical basis neuronal responses involved in perceptual processes can be segregated into a "neuronal noise" versus a "signal" component, and how such a proposed dichotomy could be corroborated empirically, a number of ...
Individuals with exploding head syndrome hear or experience loud imagined noises as they are falling asleep or are waking up, have a strong, often frightened emotional reaction to the sound, and do not report significant pain; around 10% of people also experience visual disturbances like perceiving visual static, lightning, or flashes of light.
Brain health and pollution; ... Aircraft noise can be reduced by using quieter jet engines. ... Noise pollution is a major problem in India. ...
When you're shopping for a new pair of headphones one of the best features to have is noise-cancelling technology. Drowning out the random noises around you lets you really sink into the music, or ...
Sound annoyance is a subjective matter and cannot be covered by law. In the Netherlands the government set up laws to protect households and other noise-sensitive buildings like hospitals and schools from noise pollution. There are different laws for different sound sources; airplanes, traffic, industry and neighbours. [13]
The effect is the result of the brain amplifying neural noise in order to look for the missing visual signals. [2] [better source needed] The noise is interpreted in the higher visual cortex, and gives rise to hallucinations. [3] It has been most studied with vision by staring at an undifferentiated and uniform field of color.
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