5 Written questions
5 Matching questions
- What is the challenge of measuring the microphone signal of a person's voice?
- The amplitude of the signal can be easily _____ _____.
- What does assembling a psycho physical scale mean?
- How do you use a sound level meter in the clinic?
- What type of characteristic is loudness and what does it correlate to?
- 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)
- b making a connection between somebody's perceptual response or experience to a physical measure that links the two parameters together
- c the signal goes up and down in it's amplitude all the time so it is constantly changing.
- d defined mathematically
- e a perceptual characteristic
5 Multiple choice questions
- 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
- *overall capacity of a person's voice
*the shape and dimensions of VRP will vary across individuals and within individuals before and after treatment
- Fo increases tend to be associated with amplitude increases due to physiological reasons
- relative measures as long as you're comparing like with like
- the middle range around 1000 Hz
5 True/False questions
What complicates our perception of loudness? → 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
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
What is the benefit of a logarithimic scale? → it allows us to span a wide range of intensitites using numbers that aren't absolutely enormous or totally minuscule.
What is a VRP and what does it do? → measures intensity in decibels
There are some things to keep in mind when using a sound meter level. They are: → *somewhat time consuming to collect all the data points
*useful for voice disordered patients
*practice helps them become better
*motivation plays a role
*max effort can vary with instructions
*be careful to avoid risk of vocal damage