5 Written questions
5 Matching questions
- What does RMS represent?
- Data collected from the VRP can tell us what?
- Intensity is a measure of _________.
- What are the physiological reasons Fo increases tend to be associated with amplitude increases?
- When doing research and publishing it is important to state these 2 things.
- a the amplitude of the signal
- b *overall capacity of a person's voice
*the shape and dimensions of VRP will vary across individuals and within individuals before and after treatment
- c *that they used dB SPL
*the distance of the sound level meter from the speaker
- d 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
- e amplitude
5 Multiple choice questions
- the signal goes up and down in it's amplitude all the time so it is constantly changing.
- 1st: take all of the values + and - of the signal and square them
2nd: get the average of the squared values (it will be +)
3rd: get the square root of the average which then gives you the RMS
- *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
- Our hearing is not equally sensitive to all frequencies; it is heavily influenced by the frequency that we are listening to
- *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
Why do we use logarithimic numbers and decibels? → intensity
What is the great value in using a decibel scale? → it is capable of accomodating a large range of numbers in a very straight forward and visually intuitive way
What range do our ears have the greatest sensitivity to sounds? → the middle range around 1000 Hz
What type of characteristic is loudness and what does it correlate to? → a perceptual characteristic
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