The study of how speech organs produce the sounds is called articulatory phonetics.
acoustic phonetics (声学语音学)
The study of the physical properties and of the transmission of speech sounds is called acoustic phonetics.
auditory phonetics (听觉语音学)
The study of the way hearers perceive speech sounds is called auditory phonetics.
consonant (辅音)
Consonant is a speech sound where the air form the language is either completely blocked, or partially blocked, or where the opening between the speech organs is so narrow that the air escapes with audible friction.
vowel (元音)
is defined as a speech sound in which the air from the lungs is not blocked in any way and is pronounced with vocal-cord vibration.
bilabials (双唇音)
Bilabials means that consonants for which the flow of air is stopped or restricted by the two lips. [p] [b] [m] [w]
affricates (塞擦音)
The sound produced by stopping the airstream and then immediately releasing it slowly is called affricates. [tX] [dY] [tr] [dr]
glottis (声门)
Glottis is the space between the vocal cords.
rounded vowel (圆唇元音)
Rounded vowel is defined as the vowel sound pronounced by the lips forming a circular opening. [u:] [u] [OB] [O]
diphthongs (双元音)
Diphthongs are produced by moving from one vowel position to another through intervening positions.[ei][ai][Oi] [Qu][au]
triphthongs (三合元音)
Triphthongs are those which are produced by moving from one vowel position to another and then rapidly and continuously to a third one. [eiQ][aiQ][OiQ] [QuQ][auQ]
lax vowels (松元音)
According to distinction of long and short vowels, vowels are classified tense vowels and lax vowels. All the long vowels are tense vowels but of the short vowels,[e] is a tense vowel as well, and the rest short vowels are lax vowels.
重点
★How are consonants classified in terms of different criteria
The position of the soft palate
The presence or the absence of vocal-cord vibration
The place of articulation
The manner of articulation
★How are vowels classified in terms of different criteria
The state of the velum
The position of the tongue
The openness of the mouth
The shape of the lips.
The length of the vowels
The tension of the muscles at pharynx
★What are the three sub-branches of phonetics How do they differ from each other
Articulatory phonetics is the study of how speech organs produce the sounds is called articulatory phonetics
Acoustic phonetics is the study of the physical properties and of the transmission of speech sounds is called acoustic phonetics
Auditory phonetics is the study of the way hearers perceive speech sounds is called auditory phonetics
★What are the commonly used phonetic features for consonants and vowels respectively
The frequently used phonetic features for consonants include the following
Voiced
Nasal
Consonantal
Vocalic
Continuant
Anterior
Coronal
Aspirated
The most common phonetic features for vowels include the following