5 Written questions
5 Matching questions
- What can RMS be applied to?
- What is the inverse square law?
- How do you use a sound level meter in the clinic?
- There are some things to keep in mind when using a sound meter level. They are:
- What is acoustic power?
- a *how much energy is radiated
*it is measured in watts
*represents the amount of energy transfer in a given amount of time
- b describes how sound diminishes as the distance from the sound source increases
- c 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)
- d *distance is crucial: it must be known or at least kept constant from one session to another because of the inverse square law
*keep mouth to mic distance constant
*keep input settings constant for each session
- e periodic sounds
number of harmonic components
5 Multiple choice questions
- measures intensity in decibels
- *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
- the middle range around 1000 Hz
- the amplitude of the signal
- Our hearing is not equally sensitive to all frequencies; it is heavily influenced by the frequency that we are listening to
5 True/False questions
When doing research and publishing it is important to state these 2 things. → 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
How is loudness judged? → 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
At which range do our ears have substantially less sensitivity to sound? → the middle range around 1000 Hz
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.
In the clinic what measurments are ok to use? → relative measures as long as you're comparing like with like