1) Define Nasalance:
a. What is it? : Nasalance is a measure of the relative amount of oral and nasal
acoustic energy exhibited by a speaker. (Lierde 159) (Sam)
b. How do you measure/calculate it?
There are currently thre
SPPA 3140 Study Guide Exam 2 (Part 2)
This study guide goes over materials from the slide set Acoustic Analysis, as well as our class on
analyzing spectrograms and spectrogram data.
What is the process of analog-to-digital conve
SPPA 3140 Study Guide Exam 1
1) What is sound?
2) Define Newtons 3 laws of motion. Explain how these laws are useful in accounting for the
nature of the propagation of sound through air.
3) What is the difference between a longitudinal and transverse wave
SPPA 3140 Study Guide Exam 2
This study guide covers content from slide-sets Vowel Acoustics2 and Diphthongs and Consonants.
There will be an additional study guide on articulatory-acoustic measurements forthcoming. The
pertinent book content for this fir
The fundamental theory/model is the perturbation theory.
On the left (study guide), standing wave distributions depicting volume velocity
o Standing wave distributions move along length of tube = changes in volume
velocity (pressure as well)
2) What articulatory-acoustic generalities can make (about every humans speech) that derive
from the source filter theory and perturbation theory?
Protrude lips lengthen vocal tract=lower frequency
o Contrict lips = constriction at node
Lower larynx= le
1) Analog-to-Digital Conversion
i. Sampling rate
- number of samples taken per second
-measured in Hertz
-the higher the sampling rate, the more accurately the signal can be
ii. Nyquist frequency
- the highest frequency of a wave that
1. The table you made with the formant values you measured.
2. The duration of the diphthong: 179.410 ms
3. The calculated F2 transition rate: .0126 kHz/ms
Speech Science Third Essay
a. Most frequently occurring consonant segments
a.i. Uses a lot of acoustic features/components
Ex: burts, etc (look up in notes)
b. Explain spectral templates
b.i. Meant to allow spectral variation in the burst
My first observation was for a child who had a feeding disorder. Because of her
feeding disorder, she was at an inadequate weight and very unnourished. She was young
and very uncooperative with the whole process, which did not su
1. What is the common theme among the reviewed research papers?
a. One of the common themes is that nasalance scores increase with the level of cleft or
b. Nasalance scores with the Nasometer are not comparable to the OroNasal
SPPA 3140 Group Project-Nasalence/nasalization
Progress Report & Preliminary Reference list
25 October 2011
Our group has chosen to specifically focus on the population that has VelopharyngealDisorders/anomalies in order to discuss nasalance and nasalizat
The Nasality Severity Index: An Objective Measure of Hypernasality Based on a
The current standard of practice to measure resonance has not led to error, but there is a
need for an objective assessment that will b
Running Head: Nasalance
Dr. Jeff Berry
November 22, 2011
Nasalance is a measure of the relative amount of oral and nasal acoustic energy exhibited by
a speaker (Van Lierde, 2002). It can be calcula
1. In perturbation theory, pressure and volume velocity within the vocal tract are _ related:
2. Tongue advancement is inversely related to _ and tongue height is directly related to _: