The decibel (dB) scale is logarithmic ... and a computer producing 40dB of noise would be approximately four times louder than one generating 20dB. A PC emitting only 20dB of noise would be ...

The scale has been adopted by the International Standards Organization for international use. Contours of perceived noisiness (from ISO recommendation R507, 1966). Ref.: K.D. Kryter, "The Meaning and ...

This article pertains to the measurement of sound. A decibel, designated by the letters dB, is a logarithmic scale of loudness. Our ears detect changes in volume in a non-linear fashion.

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 ...

Noise adversely affects the economy by reducing productivity, increasing healthcare costs, affecting property values, and ...