Acoustic Cues to Consonant Place of Articulation Flashcards
formant transitions
regions of relatively rapid formant movement that indicate rapid movement of the articulators
F1 transition
always move downward as you look from the vowel toward the consonant
bilabial consonants
F2 moves downward as the bilabial constriction is formed and upward as it is released
velar consonants
F2 tends to move towards F3 forming a “velar pitch”
Center of gravity
the average frequency of the spectrum, weighted by the amplitude of the noise at different frequencies
Standard deviation
the dispersion of energy around the center of gravity
skewness
the degree to which the energy on either side of the COG is distributed symmetrically or asymmetrically.
Kurtosis
the degree to which the noise spectrum is flat or shows clearly defined peaks
Voice onset time with stop consonants
Increases in duration as you move from front of mouth to back
bilabial stops
the burst spectrum tends to be flat or falling and to have no noticeable peaks
alveolar stops
burst spectrum tends to rise gradually.
Velar stops
burst spectrum tends to have peaks in teh region of F1 and F2 for the adjacent vowel. Described as “compact” spectrum.