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White Noise Grass Trimmer - When measuring sound waves1, “frequency” refers to how fast the waves vibrate per second while “amplitude” (or “power”) refers to the size of the waves. Frequency is measured in hertz and amplitude is usually measured in decibels. The relationship between the frequency and amplitude of a sound wave is used to define different “colors” of noise, which share structural properties with corresponding light waves of the same name.

To produce white noise2, every frequency the human ear can hear is played in a random order at the same amplitude. This results in a “shh” sound many associate with television or radio static. Just as white light is thought to be composed of every visible wavelength on the color spectrum, white noise consists of every audible frequency. Fittingly, “black noise” refers to the literal sound of silence.

Disruptive sounds such as a slamming door do not necessarily wake you up because they are loud. Rather, the change in sound consistency3 from soft to loud can be strong enough to interrupt your sleep. True white noise essentially creates a blanket of sound4 that masks these sudden consistency changes. And since white noise is audible, it can also be useful for people who do not like sleeping in a completely silent environment.

White noise has proven particularly effective for hospital patients5. These settings tend to be quite loud and filled with ambient noise that can disrupt sleep. Studies suggest a white noise machine can reduce sleep onset for patients, or the time it takes to fall asleep, by nearly 40% compared to patients who don’t use these devices. Some studies have also found that white noise can help babies and young children6 fall asleep more quickly. White noise has also proven effective at helping inattentive children7 concentrate better in their classrooms.

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Dernière version

Demande Grass Trimmer Sounds + Timer mise à jour 1

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Kyaw Zaya

Nécessite Android

Android 4.2+

Available on

Télécharger Grass Trimmer Sounds + Timer sur Google Play

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Quoi de neuf dans la dernière version 1

Last updated on Sep 10, 2022

🕜 App performance improvements.
⌨ Internal bug fixes.
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