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  2. Colors of noise - Wikipedia

    en.wikipedia.org/wiki/Colors_of_noise

    It is also known as differentiated white noise, due to its being the result of the differentiation of a white noise signal. Due to the diminished sensitivity of the human ear to high-frequency hiss and the ease with which white noise can be electronically differentiated (high-pass filtered at first order), many early adaptations of dither to ...

  3. Doctors Say This Type Of Noise Is Best For Deep Sleep - AOL

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    The big three in sleep sounds are white noise, brown noise, and pink noise, but there are many other noise types, including purple noise, gray noise, and even black noise (a.k.a. good ol ...

  4. White noise - Wikipedia

    en.wikipedia.org/wiki/White_noise

    On the other hand, the sh sound /ʃ/ in ash is a colored noise because it has a formant structure. In music and acoustics, the term white noise may be used for any signal that has a similar hissing sound. In the context of phylogenetically based statistical methods, the term white noise can refer to a lack of phylogenetic pattern in comparative ...

  5. White Noise vs. Brown Noise: Which One Is Better For Sleep ...

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  6. Brownian noise - Wikipedia

    en.wikipedia.org/wiki/Brownian_noise

    The term "Brown noise" does not come from the color, but after Robert Brown, who documented the erratic motion for multiple types of inanimate particles in water. The term "red noise" comes from the "white noise"/"white light" analogy; red noise is strong in longer wavelengths, similar to the red end of the visible spectrum.

  7. Otoacoustic emission - Wikipedia

    en.wikipedia.org/wiki/Otoacoustic_emission

    Assessment of transient evoked otoacoustic emissions (TEOAE) in an adult. An otoacoustic emission (OAE) is a sound that is generated from within the inner ear.Having been predicted by Austrian astrophysicist Thomas Gold in 1948, its existence was first demonstrated experimentally by British physicist David Kemp in 1978, [1] and otoacoustic emissions have since been shown to arise through a ...

  8. Missouri woman thought she had water in her ear — then ...

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    A Missouri woman who went to the doctor thinking she had water in her ear was shocked to learn it was actually a brown recluse spider.

  9. Health effects from noise - Wikipedia

    en.wikipedia.org/wiki/Health_effects_from_noise

    A hearing protection device (HPD) is an ear protection device worn in or over the ears while exposed to hazardous noise to help prevent noise-induced hearing loss. HPDs reduce (not eliminate) the level of the noise entering the ear. HPDs can also protect against other effects of noise exposure such as tinnitus and hyperacusis.