5 Written Questions
5 Matching Questions
- The amplitude of the signal can be easily _____ _____.
- What is RMS?
- What is the challenge of measuring the microphone signal of a person's voice?
- The inverse square law has important implications for what?
- What does assembling a psycho physical scale mean?
- a measuring sound pressure level in decibels of a person's spoken output because the distance of our measuring device from the speaker makes an enormous difference to the actual decibel values that we measure
- b root mean square
- c making a connection between somebody's perceptual response or experience to a physical measure that links the two parameters together
- d defined mathematically
- e the signal goes up and down in it's amplitude all the time so it is constantly changing.
5 Multiple Choice Questions
- relative measures as long as you're comparing like with like
- periodic sounds
number of harmonic components
- a perceptual characteristic
- *overall capacity of a person's voice
*the shape and dimensions of VRP will vary across individuals and within individuals before and after treatment
5 True/False Questions
How is intensity defined? → 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
Loudness is influenced by what? → frequency and spectrum
What is the benefit of a logarithimic scale? → it is capable of accomodating a large range of numbers in a very straight forward and visually intuitive way
How does RMS work? → root mean square
What happens as the radius gets bigger? → the intensity drops not in proportion to the distance but in proportion to the square of the distance