In the classroom, decibel levels can gradually increase without us realizing it, until they begin to affect the atmosphere: more difficult communication, nervous irritation, reduced concentration, etc ...

Learning depends on listening. But classroom noise pollution is making hearing in the classroom harder. Finding simple and effective ways to dial down classroom noise levels can help increase focus ...

Sound-level meter apps available for smart phones "can have a tremendous and far-reaching impact in the area of noise control," says the CDC. Do you have a favorite sound? Is it the sweet laughter of ...

An instrument for measuring the level of sound pressure in DECIBELs. Such measurements are called sound level readings. See: SOUND LEVEL. Sound level meters usually ...

You may have observed that older people have more difficulty following a conversation in a noisy environment. Most people attribute this problem to being deaf. However, many of these people are not ...

The World Health Organization recommends classroom sound levels of no more than 35 decibels. The average volume of a classroom, however, rings in at more than twice that level. At 77 decibels, the ...