Topic 3: Phones, Phonemes, and Allophones Place of Articulation Manner of Articulation Definitions of phones and phonemes Vowel Nasalization in English as an Illustration of Allophones Allophones of /t/ Discussant: Irish Claire Espiña
What is required for sound production ?
Sound production requires two things: Power/energy source Vibrating element
WHAT IS ARTICULATION ?
ARTICULATION It is the act of expressing something in a coherent verbal form , or an aspect of pronunciation involving the articulatory organs
Place of Articulation Classification of Consonant Sounds by Place of Articulation
BILABIAL Both lips come together. Consonant Sounds Produced: [b ] [p] [m] [w] b oy p eo p le m an w et
LABIODENTAL: Lower lip and upper teeth make contact. Consonant Sounds Produced: [v] [f] v el v et f ence
ALVEOLAR: The tongue makes contact with the alveolar ridge. Consonant Sounds Produced: [t] [d] [s] [z] [n] [l] t op d eer s oap z ip n ap l ap
DENTALS/ INTERDENTALS Made by placing the tongue against or between the teeth. Consonant Sounds Produced: [ th ] [ ð] eth [ θ ] theta th at th is loa th e ba th e
PALATAL: Made when the center of the tongue approaches the palate.
Voiceless Sounds: [ tʃ ]= / ch / [ʃ ] = / sh / ch erry ch alk sh ip sh oe Voiced Sound: [g] r ou g e jud g e G eor g e Palatal Glide: [j] = yod y ou c u be on i on y et
VELAR Made when the back of the tongue touches the velum. Consonant Sounds Produced: [k] [g] [ŋ ]= engma k id g o rolli ng su ng
GLOTTAL Primary constriction is at the glottis. Consonant Sounds Produced: [h] h at h arp h unt
MANNER OF ARTICULATION Classification of Consonants by Manner of Articulation
STOPS Also called the “Plosives” produced by complete closure of the lips and subsequent release [p] [b] p en b ed
FRICATIVES Produced by almost blocking the airstream [f] [v] [ð] [s] [ θ ] [z] [ʃ] [ʒ] [h] f is h th o se sh oe ca s ual
AFFRICATES Can be describe as “STOPS” + “FRICATIVES” Consonant Sounds Produced: ch =[ tʃ ] j=[ dʒ ] ch urch ch apter lun ch g erm e dg e j ournal
NASALS Produced when the vellum is lowered and the airstream is allowed to flow out through the nose Consonant Sounds Produced : [m] [n] [ ŋ] m orni ng kn itti ng n ame
LIQUIDS & GLIDES Both terms describe articulations that are mid-way between true consonants and vowels [l] [r] l ife l ike r ed r est
What’s the difference between phones and phonemes?
PHONES vs. PHONEMES PHONES A ny distinct speech sound or gesture, regardless of whether the exact sound is critical to the meanings of words. Transcribed within brackets [m] [n] PHONEMES A minimal unit that serves to distinguish between word meanings Transcribed within slashes /m/ /n/
PHONES Example: A. pin B. spin The change never affects the meaning of a word in English so they are classified as phones and not phonemes . ASPIRATED [ pʰ ] UN-ASPIRATED [ p ʰ I n ] remains as [ s p I n ]
PHONEMES Consider the following sentence: (1) / ðə kæt ɪz ɒn ðə mæt / the cat is on the mat If we change the first consonant of the noun cat and insert /h/ instead we get the sentence: (2) / ðə hæt ɪz ɒn ðə mæt / the hat is on the mat. which does not have the same meaning. The two strings of sound [ kæt ], and [ hæt ] differ only because of their initial sound and thus are potentially two different words. T he substitution of one sound for another changes the meaning completely .
PHONEMES Now if we say: (3) a. the cat is on the mat b. the mat is on the cat Is there a difference in sound? Is there a difference in meaning? Obviously the set of sounds uttered in (3a) and (3b) is identical . So the difference lies in the order in which these sounds appear: /k/ and /m/ permute in (3b). We see that the order of appearance can alter meaning . In (3a) and (3b) the relationship between the cat and the mat is inverted. In our examples we produce a change in meaning through a substitution of segments in a string of sounds. These segments are called phonemes.
Vowel Nasalization in English as an Illustration of Allophones English Vowels
Vowel Nasalization in English as an Illustration of Allophones Vowels become nasalized when followed by nasals. WHAT ARE THESE NASALS? [m] [n] [ ŋ ]
WORDS be [bi] bead [b i d ] bean [ b ĩ n ] lay [le] lace [l e s ] lame [ l ẽ m ] baa [bæ] bad [b æ d ] bang [b æ ̃ ŋ ] Vowel Nasalization in English as an Illustration of Allophones Oral vowels Non nasal consonants Nasalized vowels Nasal consonants Oral vowels occur before non nasal consonants . Nasalized vowels occur before nasal consonants .
Whether you speak or hear the vowel in bean with or without nasalization does not matter. bean pronounced [ bĩn ] and bean pronounced [bin] would convey the same word, because nasalization is an inessential difference insofar as what the word actually is, we tend to be unaware of it . Contrast this situation with a change in vowel height. For example , the words bead and bad. The [i] in bead and the [æ] in bad are sounds from different phonemes. Substitute one for another and you get a different word (or no word). Vowel Nasalization in English as an Illustration of Allophones
ENGLISH VOWEL SOUNDS
ENGLISH VOWEL SOUNDS
NOTE:
ALLOPHONES OF /T/ Allophone is a phonetic variant of a phoneme . Aspirated [ t ʰ ] Phonemes /t/ Un-aspirated [t] Allophones Flap[ɾ ] The aspirated [ tʰ ] occurs at the beginning of a word or a stressed syllable tick [ tʰɪk ] The un-aspirated [t] occurs directly before or after /s / stick [ stɪk ] The flap [ɾ] occurs between a stressed vowel and an unstressed vowel. bitter [ bɪɾər ]
Examples: letter = [ le t̬ ər ] get in = [ ɡet ̬ ɪn ] thirty = [ θ ɜrt̬i ] f lutter = [ flʌt ̬ ər ] ASPIRATED UN-ASPIRATED FLAP [ɾ] s top = [ stap ] stew = [ stu ] s tep = [step] steer = [ stɪr ] t op = [ t ʰ ap ] t an = [ t ʰ æ n ] t ip = [ t ʰ ɪ p ] t en = [ t ʰ e n ]