'Source Filter'

Question 1

Function of the labial valve of the vocal tract?

Answer 1

Changing lip shape, restrict airflow.

Question 2

Function of the lingual valve of the vocal tract?

Answer 2

To contact teeth, the alveolar ridge, and the hard/soft palate.

Question 3

Function of the velopharyngeal valve of the vocal tract?

Answer 3

Directs airflow to oral and nasal cavity

Question 4

Function of the laryngeal valve?

Answer 4

Voicing.

Question 5

What is the source of speech sounds?

Answer 5

The vocal folds moving the air through rarefaction and compression

*It changes fundamental frequency and harmonics.

Question 6

What is the filter of speech sounds?

Answer 6

The vocal tract valves.

Question 7

Where does the output of sound take place?

Answer 7

The lips and nose.

Question 8

What is the function of the filters in speech?

Answer 8

to create rich sound in speech through resonance, depending on length and width of the tract

Question 9

What are the 3 elements of the source filter theory?

Answer 9

1. Source spectrum of F0 and harmonics
2. Filter
3. Output

Question 10

What are the 2 types of resonators?

Answer 10

1. Acoustic
2. Mechanical

Question 11

What is a mechanical resonator?

Answer 11

When an object is set into vibration (such as a tuning fork).

Question 12

What is an acoustic resonator?

Answer 12

A receptacle filled with air (such as the human voice)

Question 13

Describe a node.

Answer 13

A closed end with minimal velocity, maximum pressure.

Question 14

Describe an antinode.

Answer 14

An open end with maximum velocity, no constraints, maximum movement of particles, and minimum pressure.

Question 15

Name 4 speech systems that DDK tasks may test.

Answer 15

1. Respiratory
2. Articulatory
3. Phonatory
4. Resonatory