Chapter 3: Phonetics Describing Sounds
Phonetics: the study of sounds
We know a great deal about the complex sounds and the sound system of English; it is not
something we think about but comes effortlessly
Spelling is a cultural artefact, and is not necessarily language!
There is not a one-to-one correspondence between sound and spelling, so linguists use a system
for describing sounds of language in which each sound is represented by a single symbol (IPA-
International Phonetic Alphabet)
o Example: cough, enough, though, and though all end in ough, but have different sounds
o Example: “ee” sound in plea, tee, deceive, tangy, key, ski, brie, people, algae
o Example: some are silent like in know, dumb
o Single sounds can be presented by two letters thin, that or one letter representing more
than one sound unite, untie, xylophone
The Solution- IPA:
Linguists use a one-to-one sound to symbol convention that accurately tells them how
to document any speech sound
Languages would have Arabic would have trouble writing the sound in words
IPA: Is the Solution
It is a systematic approach to documenting speech sounds using articulatory
specifications
Natural class is a set of sounds that have certain phonetic features in common
The one’s in grey are voiced, white are voiceless Phonemes:
Are distinctive sounds in a language that makes a difference in the meaning of a word
o For example, sometimes p’s sound like b’s, yet we consider them all p’s
Different languages have different phonemes for example English has forty while !Xu (Southern
Africa has 141! The most common are : /p, t ,k/
Phonemes are determined using the minimal pair test
o Two words form a minimal pair when they differ by exactly one sound (not letter)
E.g. bat-pat, bought-bat, bat-bad
Suppose you land on an alien planet and your task is to figure out what sounds are used in alien
language. You could do this using the minimal pair test, to determine the phonemes
Two types of Phonemes: Vowels and Consonants
Consonants:
Are sounds characterized by closure or obstruction of the vocal tract
There are only 24 different consonant phonemes in English
Consonants are described using 3 dimensions
o Voicing: Voice of Voiceless
o Place of Articulation:
o Manner of Articulation
Place of Articulation:
Refers to the place, in the vocal tract, where there is an occlusion, impeding air flow, which
when released makes sound
POA:
o Bilabial: “two lips,” The sounds in this group are all made by bringing both lips together
or almost together
o Labiodental: “lip, tooth” sounds are made with the lower lip against the upper front
teeth
o Interdental: “between, teeth” sounds are made with the tip of the tongue between the
front teeth.
o Alveolar: the sounds in this group are made with the tongue tip at or near the alveolar
ridge.
o Palatal: the sounds in this group are made with the tongue near your palate (hard part
past the alveolar)
o Velar: the sounds in this group are made with the tongue near the velum (the soft part
of the roof of your mouth (behind palate
o Glottal: this is a sound made at the glottis, the space between the vocal folds Manner of Articulation:
Manner is the most unclear of the articulatory dimensions. It is related to how the consonant is
articulated
o Stop (PlosiveTight spot in your mouth, so air can’t escape. Release the
contraction causing an explosion
o Fricatives: the sounds in this group are made by forming a nearly complete stoppage of
airstream where the sounds quickly moves past the area of articulation
o Affricates: sounds in this group are made by briefly stopping the airstream completely
and then releasing the articulators slightly so that friction is produced (start as a stop
and finish as fricatives)
o Nasals: the sounds in this group are made by lowering the velum and letting the
airstream pass primarily through the nasal cavity
o Glides: the sounds in this group are made with only a slight closure of the articulators
tongue closer to roof of mouth- (any more open would be a vowel)
o Liquids: The sounds in this group result when a obstruction is formed by the articulators
but is not narrow enough to stop the airflow or to cause friction
/l/ a lateral liquid tongue touches the roof of the mouth (near the alveolar
ridge, and air flows around the sides of the tongue
/r/ is described as a bunched liquid because for most American English speakers
the tongue is bunched up under the palate
o Other Names: Approximant (dynamic tongue movements starts in one place ends
in another). Trill (rapid movement of the articulator). Tap, Flap (short ballistic
movement goes up and hits the top and comes back down). Lateral refers to the
air escaping the sides of your mouth. Voicing:
Voicing is the vibration of the vocal folds
All consonants are either voiced or voiceless
The airflow coming out of the lungs can meet resistance at the larynx or voice box. The
resistance can be controlled by the different position and tension in the vocal cord/folds which
are two muscular bands of tissue that stretch fro from the front to back of the larynx, behind
the Adam’s Apple
When relaxed and breathing their open, when there just enough tension/air in the muscles in
the cords they vibrate when you speak /s/ vs ./z/
Vowels:
Vowels are produced with no occlusion in the vocal tract
Vowels have a continuous production
Classified using dimensions related to the position of the tongue
o Height
o “Backness”
o Tenseness
o Rounding (of lips)
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