I learned the power of white noise when Baby V and I ventured out ... but all of the machines were capable of exceeding 50 decibels, the level considered safe for nurseries in hospitals.

For example, researchers exposed the crickets to four traffic noise levels commonly experienced in their natural environment: ...

They have background levels between 55 - 67 decibels. That's about as loud as the hum from your air conditioner. You'll notice that's not including random spikes of noise you hear throughout the day.

Sound levels are measured on a scale known as the decibel \(dB\) scale. The higher the number the greater is the sound level. Too much noise can damage hearing. Exposure to 90 decibel sound levels ...

The permit allows sound from concerts to significantly exceed the 50-55 decibels allowed in residential areas under a state ordinance. Air Force Academy assistant professor Kellie Kuhn shows sound ...

After fielding hundreds of complaints about excessive noise from the new Ford Amphitheater that opened in August, the city of ...