Chapter 3 quiz answers

Chapter 3 quiz answers - CD1025 Hearing Science Unit: SOUND...

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CD1025 Hearing Science Unit: SOUND MEASUREMENT Pop Quiz 3 Name: Allison Wenger Fill in the appropriate word or phrase . Note: some minimal computation is needed for some questions; nevertheless { this is a hint }, you should never need more than Table 3.1). 1. The peak amplitude is not usually the measure of the magnitude of a sound that we desire or use in routine sound measurement. Rather, we generally us a measure that reflects its equivalent steady power. This is called the root-mean-square amplitude (no abbreviations, please ). 2. The arithmetic basis of the decibel is a numeric transformation or “number system” known as the logarithm . {The answer is NOT scientific notation .} 3. I somehow know the acoustic intensity of a certain sound. To express this sound quantity in intensity level in dB , I start off by dividing by a number like 10 -12 w/m2. This number is called the: reference . 4. If the measured sound pressure of a sound is 200 uPa, its sound pressure level in dB re 20 uPa will be 20 . [Choose from:
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Chapter 3 quiz answers - CD1025 Hearing Science Unit: SOUND...

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