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5 Written Questions

5 Matching Questions

  1. How is intensity defined?
  2. Why do we use logarithimic numbers and decibels?
  3. What is the benefit of a logarithimic scale?
  4. How do you use a sound level meter in the clinic?
  5. How is loudness judged?
  1. a by the human listener
    cannot be measured by equipment
  2. b because values in watts are too cumbersome
  3. c 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
  4. d it is capable of accomodating a large range of numbers in a very straight forward and visually intuitive way
  5. e as a biofeedback tool; measure clients speech intensity while they're talking and then give them feedback that will help them aim for a particular target (higher or lower depending on their need)

5 Multiple Choice Questions

  1. *how much energy is radiated
    *it is measured in watts
    *represents the amount of energy transfer in a given amount of time
  2. *overall capacity of a person's voice
    *the shape and dimensions of VRP will vary across individuals and within individuals before and after treatment
  3. Our hearing is not equally sensitive to all frequencies; it is heavily influenced by the frequency that we are listening to
  4. the pressure within the oral cavity is much higher so you would need more forceful closure of the lips for a bilabial stop because if you increased the pressure and didn't increase the lip closure force, you would end up leaking air when you really wanted to have good stop closure
  5. making a connection between somebody's perceptual response or experience to a physical measure that links the two parameters together

5 True/False Questions

  1. What does RMS represent?the amplitude of the signal

          

  2. 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

          

  3. At which range do our ears have substantially less sensitivity to sound?very low frequencies and very high frequencies

          

  4. What is a VRP and what does it do?Voice Range Profile: measures dynamic range; from lowest to highest intensity across a person's (dB range) Fo range

          

  5. What type of characteristic is loudness and what does it correlate to?Voice Range Profile: measures dynamic range; from lowest to highest intensity across a person's (dB range) Fo range

          

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