Airstream Mechanics Flashcards
Define the three different mechanisms with which we can manipulate airflow in the vocal tract
- Pulmonic
- Glottalic
- Velaric
Define Pulmonic Airflow
initiated by the lungs
Define glottalic airflow
inititaed by glottis
Define velaric airflow
initiated by the velum and back of tongue
What are the two directions are can move?
- Egressive
- Ingressive
Is egressive air moving in or out of the body?
Out
Is ingressive air moving in or out of the body?
In
Define pulmonic egressive sounds and how they are produced
When you breathe in, muscles expand in the lungs, lowering the sub-glottal air pressure
By contracting the lungs, sub-glottal aur pressure is increased
PESS make use of this out-flowing air
What are classified as pulmonic egressive sounds
stops, fricatives, affricates, vowels, most sounds
Define pulmonic ingressive sounds
sounds that make use of in-flowing air (rare)
Give an example of a pulmonic ingressive sound
“ja”
Explain the glottalic mechanism
Your larynx moves up and down when muscles contract and using the glottalic mechanism, the glottis then acts like a piston, pulling and pushing air
What are glottalic egressive sounds called
Ejectives
What are glottalic ingressive sounds called?
Implosives
How are glottalic ingressive implosives made?
- Larynx lowers, decreading amount of pressure of air above glottis
- small amount of air enters mouth
- voicing occurs as air crosses glottis
