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5 Written questions

5 Matching questions

  1. How do you use a sound level meter in the clinic?
  2. Why does minimum amplitude level in decibels get higher as you go left to right to the higher Fo's?
  3. Loudness is influenced by what?
  4. What is acoustic power?
  5. When doing research and publishing it is important to state these 2 things.
  1. a 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)
  2. b *how much energy is radiated
    *it is measured in watts
    *represents the amount of energy transfer in a given amount of time
  3. c frequency and spectrum
  4. d *that they used dB SPL
    *the distance of the sound level meter from the speaker
  5. e Fo increases tend to be associated with amplitude increases due to physiological reasons

5 Multiple choice questions

  1. relative measures as long as you're comparing like with like
  2. making a connection between somebody's perceptual response or experience to a physical measure that links the two parameters together
  3. 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. measures intensity in decibels
  5. because values in watts are too cumbersome

5 True/False questions

  1. Decibels are a logarithmic measure of what?intensity

          

  2. What is the inverse square law?by the human listener
    cannot be measured by equipment

          

  3. Ideas to keep in mind when using VRP in practice are:it allows us to span a wide range of intensitites using numbers that aren't absolutely enormous or totally minuscule.

          

  4. What does RMS represent?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

          

  5. What complicates our perception of loudness?Our hearing is not equally sensitive to all frequencies; it is heavily influenced by the frequency that we are listening to