Essays on Sound

Sound Decibels argon the units of measurement used to describe electric potential and precedent levels. The abbreviation for a decibel is dB (Sauvala). some(prenominal) decibel comparisons are: 10 dB is about as moth-eaten as some unity whispering, 70 dB is a shouted conversation, and 110 dB is as loud as a jet engine (“Sound”). Decibels are the expressions of ratios. nearly formulas for decibels are power =10log(P1/P2)(P1= power 1 and P2= power 2) and potential =20log(v2/v1)(V2= voltage 2, V1= voltage 2) (jgoldste@wyoming.com). Decibels are measured by 6’s.

For example, 6 dB is twice the skipper order (0 dB) and -6dB is ? o f the original value (0 dB) (Sauvala). O dB is the minimum a military man can hear and 140 dB is the threshold of hurting for a human (Freedom). Decibel marrow the measurement is a ratio measured on a logarithmic weighing machine and whenever you add 6 dB the voltage doubles (BBC Online). The comely human ear cannot observance decibel changes of less than one decibel (malcolm@mcs.net). ...If you want to get a full essay, allege it on our website: OrderEssay.net

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