5 Written questions
5 Matching questions
- What is the inverse square law?
- How is loudness judged?
- The amplitude of the signal can be easily _____ _____.
- What is the challenge of measuring the microphone signal of a person's voice?
- What are the physiological reasons Fo increases tend to be associated with amplitude increases?
- a by the human listener
cannot be measured by equipment
- b defined mathematically
- c 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
- d describes how sound diminishes as the distance from the sound source increases
- e the signal goes up and down in it's amplitude all the time so it is constantly changing.
5 Multiple choice questions
- a perceptual characteristic
- it allows us to span a wide range of intensitites using numbers that aren't absolutely enormous or totally minuscule.
- to specify exactly how the intensity of sound diminishes as the hearer/recorder gets further away form the speaker/sound source
- relative measures as long as you're comparing like with like
- *increase our subglottal pressure/more driving pressure for loud speech
*it causes the vocal folds to move farther apart as they oscillate = more forceful vocal fold collisions
*larger articulator movements
*because more pressure has come from the lungs to drive the larynx, there is higher oral presure as you form consonants thus, the consonant burst release is stronger
5 True/False questions
The inverse square law has important implications for what? → intensity
When doing research and publishing it is important to state these 2 things. → *that they used dB SPL
*the distance of the sound level meter from the speaker
How do you use a sound level meter in the clinic? → measures intensity in decibels
How does RMS work? → the amplitude of the signal
What does assembling a psycho physical scale mean? → making a connection between somebody's perceptual response or experience to a physical measure that links the two parameters together