NAME: ________________________

# ← COMD 5070 Speech IntensityTest

### Question Limit

of 38 available terms

### 5 Matching Questions

1. What does WATTS represent?
2. What happens as the radius gets bigger?
3. What are the physiological reasons Fo increases tend to be associated with amplitude increases?
4. What is the great value in using a decibel scale?
5. What is the general principle of the inverse square law?
1. a if you are going to sustain a very high note at a very high Fo it means that you need to activate the cricothyroid muscle to stretch the vocal folds substantially; the vocal folds would be quite stiff and in order to get them to vibrate when they are that stiff you need to apply greater pressure and this will result in higher amplitude phonation simply because it is difficult to get the vocal folds to oscillate when they are stiff; you have to drive them much harder to do so as you drive them harder it's then impossible to sustain a very soft input
2. b the intensity drops not in proportion to the distance but in proportion to the square of the distance
3. c the amount of energy that can be transferred by the system
*in the case of a music system, the energy comes from a battery or from the electrical wall socket and the output from this system is acoustic energy
4. d it allows us to span a wide range of intensitites using numbers that aren't absolutely enormous or totally minuscule.
5. e to specify exactly how the intensity of sound diminishes as the hearer/recorder gets further away form the speaker/sound source

### 5 Multiple Choice Questions

1. a perceptual characteristic
intensity
2. WATTS divided by a unit area
*if you take the amount of energy that a stereo is giving out and divide it across the surface of a sphere you see that there's less energy availabe per unit area as that sphere gets larger
*it is simply spread out over a larger surface
3. *that they used dB SPL
*the distance of the sound level meter from the speaker
4. defined mathematically
5. *how much energy is radiated
*it is measured in watts
*represents the amount of energy transfer in a given amount of time

### 5 True/False Questions

1. What does a transducer do?the amount of energy that can be transferred by the system
*in the case of a music system, the energy comes from a battery or from the electrical wall socket and the output from this system is acoustic energy

2. Why do we use logarithimic numbers and decibels?because values in watts are too cumbersome

3. What happens when we adjust the loudness of our speech?the intensity drops not in proportion to the distance but in proportion to the square of the distance

4. What does assembling a psycho physical scale mean?measures intensity in decibels

5. Loudness is influenced by what?frequency and spectrum