White Noise Machines

White Noise Machines

Babies are soothed and comforted by sounds that remind him/her of the rhythmic noises in the womb by white noise machines.

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A white noise machine is a device that produces a noise that calms the listener, which in many cases sounds like a rushing waterfall or wind blowing through trees, and other serene or nature-like sounds. Often such devices do not produce actual white noise, which has a harsh sound, but pink noise, whose power rolls off at higher frequencies, or other colors of noise.

White noise devices are available from numerous manufacturers in many forms, for a variety of different uses, including audio testing, sound masking, sleep-aid, and power-napping. Sleep-aid and nap machine products may also produce other soothing sounds, such as music, rain, wind, highway traffic, and ocean waves mixed with—or modulated by—white noise.

As an alternative to a white noise machine, many Westerners will use a fan to help get to sleep. According to a recent Gallup Poll, up to 80% of Westerns will use a fan to help get to sleep. Whereas many Asian communities will not use a fan due to the superstition that a fan can suffocate them while sleeping. White noise generators are often used by people with tinnitus to mask their symptoms. The sounds generated by digital machines are not always truly random. Rather, they are short prerecorded audio-tracks that continuously repeat at the end of the track.

Manufacturers of sound-masking devices recommend that the volume of white noise machines be initially set at a comfortable level, even if it does not provide the desired level of privacy. As the ear becomes accustomed to the new sound and learns to tune it out, the volume can be gradually increased to increase privacy. Manufacturers of sleeping aids and power-napping devices recommend that the volume level be set slightly louder than normal music listening level, but always in a comfortable listening range.

Sound and noise have their measurement and color-coding techniques, which allows specialized users to identify noise and sound according to their respective needs and utilization. These specialized needs are dependent on certain professions and needs, e.g. a psychiatrist who needs certain sounds for therapies and treatments on a mental level, and patients who have conditioned such as insomnia, anxiety, and, tinnitus (these conditions are managed with special devices which are designed to create certain sounds that treat such conditions at a mental level). A white noise machine has "white" as the color code given to that noise having a particular frequency spectrum.

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