Explain the origin of the term “phonetics”
It comes from Greek and its origins can be traced back to the verb phōnein, to speak, in its turn related to phōnē, sound.
What is PHONETICS?
Phonetics is the science concerned with the study of speech processes, including the perception, transmission and reception of speech sounds from both an acoustic and a physiological point of view.
What is the main aim of PHONOLOGY?
To discover the rules which organize sounds into a language system.
Name the divitions of the speech mechanism organs and cavities
How are vowels and consonants distinguished from a phonetic point of view?
By their articulation and the associated patterns of acoustic energy. In the production of vowel sounds, the air stream comes out relatively unimpeded. Consonants, on the other hand, may meet some strictures.
What strictures may consonants meet when their produced?
How are vowels and consonants distinguished in a phonological definition?
In terms of how these units are used in the structure of spoken language. Vowel sounds are generally syllabic while consonant sounds are non-syllabic, i. e., vowel sounds are central and consonant sounds are marginal in the structure of the syllable.
What are the segmental and suprasegmental features of speech?
Segmental: consonants and vowels
Suprasegmental: stress/accent, rhythm and intonation
Name the six main factors that the articulatory phonetic description of segmental features may make reference to
Air stream, vocal folds, sof palate, place of articulation, manner of articulation and the position of the lips
Explain AIR STREAM (main factors that the articulatory phonetic description of segmental features may make reference to)
The source and direction of the air stream identifies the basic class of sound. The vast majority of speech sounds are produced using pulmonic egressive air. Non-pulmonic sounds include clicks, implosives and ejectives.
Explain VOCAL FOLDS (main factors that the articulatory phonetic description of segmental features may make reference to)
Their action can entail the presence or absence of vibration. Voiced sounds are produced when the vocal folds vibrate; voiceless sounds are produced when there is no vibration, the folds remaining open. Other vocal fold actions are sometimes mentioned, e.g., the closed glottis used to produce a glottal stop.
Explain SOFT PALATE (main factors that the articulatory phonetic description of segmental features may make reference to)
Its position indicates either a sound is nasal (lowered position) or oral (raised position)
Explain PLACE OF ARTICULATION (main factors that the articulatory phonetic description of segmental features may make reference to)
It refers to the point in the vocal tract at which the main closure or narrowing is made, such as at the teeth, lips, etc.
Explain MANNER OF ARTICULATION (main factors that the articulatory phonetic description of segmental features may make reference to)
Manner of articulation refers to the type of constriction that takes place at any place of articulation
Explain THE POSITION OF THE LIPS (main factors that the articulatory phonetic description of segmental features may make reference to)
The position of the lips is especially important when describing vowels (rounded or spread)
What are the three basic criteria used in the articulatory description of a sound
Explain VOICING (basic criteria used in the articulatory description of a sound)
If the vocal cords vibrate when we produce a sound, the sound is called voiced. If there isn’t a vibration, it is a voiceless sound. All vowels are voiced, while consonants can be both voiced or voiceless.
Explain what happens when the outgoing airstream makes the two cavities (oral and nasal) vibrate
This generates an acoustic phenomenon named resonance. The higher or lower level of resonance produced when a sound is uttered results into a higher or lower degree of prominence or sonority and leads to a major distinction between two classes of consonants: sonorants (higher degree of sonority and resonance) and obstruents (lower sonority and lower, if any, resonance). Sonorants (vowel-like sounds) hold the highest position on a sonority scale, while the obstruents are those sounds having predominantly consonantal features. In English, all sonorants are voiced, while obstruents may be voiced or voiceless.
What are the seven types of consonants according to the place of articulation?
Explain BILABIALS (type of consonants according to the place of articulation)
The articulators are the two lips. [p] (voiceless), and [b] and [m] (voiced). Sometimes [w] (way, walk and world)
Explain LABIO-DENTALS (type of consonants according to the place of articulation)
The lower lip is the active articulator and the upper teeth are the passive articulator. [f] (voiceless), [v] (voiced)
Explain DENTALS (type of consonants according to the place of articulation)
They involve the upper teeth as the passive articulator. The active articulator may be either the tongue tip or (usually) the tongue blade. [θ] (voiceless), [ð] (voiced)
Explain ALVEOLARS (type of consonants according to the place of articulation)
They involve the alveolar ridge as the passive articulator. The active articulator may be either the tongue blade or (usually) the tongue tip. [t] and [s] (voiceless), [d], [z] and [n] (voiced). [l] and [r] are sometimes alveolars, too.
Explain POST-ALVEOLARS OR ALVEO-PALATALS (type of consonants according to the place of articulation)
They involve the area just behind the alveolar ridge as the passive articulator. The active articulator may be either the tongue tip or (usually) the tongue blade. [ ʃ ] and [ tʃ ] (voiceless). [dʒ] and [ʒ] (voiced).