Travel has never been this loud. Here’s how to lower the decibels
From the roar of jet engines to the constant construction noise at hotels, it's hard to find a moment of peace on the road. Here's how to find some peace and quiet.
What parents can do to protect their children’s hearing — including the risks that should be avoided
Beyond exposure to loud sounds, causes of hearing problems in children include otitis media (infection of the middle ear), ...
TechSpot7y
Here's the story behind it
The decibel (dB) scale is logarithmic ... Consequently, 30dB is about twice as loud as 20dB, and a computer producing 40dB of noise would be approximately four times louder than one generating ...
Simon Fraser University6y
EQUAL LOUDNESS CONTOURS
The PHON scale was devised to express this subjective impression of loudness, since the DECIBEL scale alone refers to actual sound pressure or sound intensity levels. Historically, the A, B, and C ...