One unit of ( X ) is equal to ten times one-tenth of ( X ). We are at liberty to allow ( X ) to be a quantity of anything we wish. For example, let’s allow ( X ) to be a dollar bill: 1 dollar = ( 10 )( 1 tenth dollars )Continue reading “SOUND: The Decibel Scale”
Tag Archives: decibel
MATHEMATICS: A Review of Logarithmic Functions and Exponential Math
The basic rules of exponents state that some number ( a ) raised to the ( x ) power is equal to ( y ). For example, ( 2 )( 2 ) = 4. This can also be expressed as ” two squared ” = 2^2. Likewise, ( 2 )( 2 )( 2 ) =Continue reading “MATHEMATICS: A Review of Logarithmic Functions and Exponential Math”
SOUND: What is the Sound-Intensity and Perceived Increase in Loudness at 1/4th the Distance?
Mr. Titus Tulay recently purchased a home four blocks from a busy tollway. On a typical evening, the decibel level resulting from tollway traffic is 62 dB at the location of his house. Determine the decibel level of a house 1 block from the tollway (four times closer). Essentially, a decibel reading tells us howContinue reading “SOUND: What is the Sound-Intensity and Perceived Increase in Loudness at 1/4th the Distance?”
SOUND: Intensity, Loudness, and the Decibel System
The intensity ( I ) of a sound is quantitatively different than how sound is perceived by the ear. The perception of sound is referred to as ” loudness “. When a sound’s intensity increases by 10 decibels ( B ), the ear perceives this increase as a ” doubling ” in loudness. Logarithmic mathematicsContinue reading “SOUND: Intensity, Loudness, and the Decibel System”