CD411- Quiz 3
CD411- Quiz 3 CD 411
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This 2 page Study Guide was uploaded by Leah Larabee on Friday February 27, 2015. The Study Guide belongs to CD 411 at University of Alabama - Tuscaloosa taught by Dr. Buhr in Spring2015. Since its upload, it has received 127 views. For similar materials see Speech Science in Language at University of Alabama - Tuscaloosa.
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Date Created: 02/27/15
Quiz 3 Review Scales 0 Nominal o Categorical o Objects can be equal or different Ordinal 0 Symbols that differentiate things but correspond to some order I AgtBgtCgtDgtE Radial o Exponential I Xn Interval 0 Size of interval between adjacent numbers is known as a constant I Aka linear scale 0 Size of interval is called the base 0 Adding or subtracting the base to each interval will give you the next one I 12345 n1 I 102030 n10 Laws of Exponents 0 Law 1 x3 xb x3lb o MultiplicationAdd a b 0 Law 2 xaxb x3quotb 0 Division Subtract a b 0 Law 3 x31b xab 0 Power Multiply a and b Rules Any base raised to the zero power is 1 o X0 0 Any base raised to the first power equals the base 0 X1 X Antilo g I LongB gtXBA Log283 o 23 8 Sound Energy Absolute power 0 One sound wave is compared with the absolute power in another reference wave I Level Wx WR Wx is the power of interest 0 WR is the reference power I The measure of level is meaningless unless WR is specified 0 Absolute intensity 0 Intensity energy per second per square meter I Unit watt m2 39 IX IR 0 Bel I Level gt Log1o Ix IR I N bels Log1o Ix IR 0 Bel is a level it is a ratio the log of the ration is called a Bel o Decibel I Decibel is 110 ofa bel 39 N 3 10 L0g1o Ix IR 0 Rules 0 For every 10 step level change in Ix I dB changes by 10 dB 0 For every 2 fold level change in Ix I dB changes by m The WATT 1 Watt 1oules MKS o 1 joule a force of 1 Newton acting through a distance of 1 meter
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