consonants part ii

21
Consonants Part II A Course in Phonetics Ladefoged & Johnson Chapter 3

Upload: brand

Post on 07-Feb-2016

75 views

Category:

Documents


0 download

DESCRIPTION

Consonants Part II. A Course in Phonetics Ladefoged & Johnson Chapter 3. Fricatives. Vowels before voiceless fricatives are shorter than before voiced fricatives strife[straɪf]strive [straɪv] teeth [tiɵ]teethe [tið] rice [raɪs]rise [raɪz] - PowerPoint PPT Presentation

TRANSCRIPT

Page 1: Consonants Part II

ConsonantsPart II

A Course in PhoneticsLadefoged & Johnson

Chapter 3

Page 2: Consonants Part II

Fricatives

• Vowels before voiceless fricatives are shorter than before voiced fricatives– strife [straɪf] strive [straɪv]– teeth [tiɵ] teethe [tið]– rice [raɪs] rise [raɪz]– mission [mɪʃnˌ] vision [viʒnˌ]

Page 3: Consonants Part II

Fricatives

• Voiceless fricative at the end of a word is longer than a voiced fricative at the end of a word.– Safe [seɪf] save [seɪv]– Lace [leɪs] laze [leɪz]

Page 4: Consonants Part II

Stops and FricativesSimilarities1. Vowels before voiceless stops and fricatives

are shorter than before voiced.2. Final voiceless stops and fricatives are longer

than voiced.3. Final voiced stops and fricatives aren not

actually voiced throughout the articulation unless adjacent sounds are also voiced.

4. Stops and fricatives are also known as obstruents, since they do obstruct the airflow in some way.

Page 5: Consonants Part II

Labialization

• Action of the lips are added to the articulation of the fricatives. strongly labialized /ʃ/ /ʒ/

mildly labialized /s/ /z/

Page 6: Consonants Part II

Affricates

/ʧ/ and /ʤ/• Combination of a stop immediately

followed by a fricative.• These are the only two affricates in

English.• May occur at the beginning and end of

words.judge [ʤʌʤ] church [ʧɝʧ]

Page 7: Consonants Part II

Nasals

• Together with /r , l/ can be syllabic when they occur at the end of a word.

• This is marked by /ˌ/ under the symbol.– Sadden [sædnˌ]– Table [tæblˌ]– Jack and Kate [ʤæk nˌ keɪt]

Page 8: Consonants Part II

Nasals

/ŋ/• No English word can begin with /ŋ/• It can only be preceded by the vowels

/ɪ, ɛ, æ, ʌ, ɑ/• It can not be syllabic. Except in

Jack and Kate [ʤæk ŋˌ keɪt]

Page 9: Consonants Part II

Change over time

sing [sɪng] [sɪŋg] [sɪŋ]

sink [sɪnk] [sɪŋk] singer [sɪŋɝ] finger [fɪŋgɝ] New York = [sɪŋgɝ]

Page 10: Consonants Part II

Approximants

/w, r, l/ whack [wæk] rack [ræk] lack [læk]• They are largely voiceless when they

follow a voiceless stop /p, t, k/• Play [pl˳eɪ] twice [tw˳aɪs] clay [kl˳eɪ]/j/ yak [ jæk] • Can also occur in consonant clusters• Pew [pju] cue [kju]

Page 11: Consonants Part II

Velarization

• The tip of the tongue touches the alveolar ridge, the center of the tongue is pulled down and the back is arched upward. /l/

• The alveolar ridge = primary articulation• Arched back of the tongue = secondary

articulation• The mark for velarization is [~] through the

middle of the symbol / ɫ / [ ɫif ]

Page 12: Consonants Part II

/ h /

• In most instances it can only occur before stressed vowels or before the approximant / j / as in hue [hju].

• Sometimes there is a /h/ before /w/ so that which [hwɪʧ] and witch [wɪʧ] are contrasted.

• This is sometimes represented by an inverted w /ʍ/

• This is disappearing in American English.

Page 13: Consonants Part II

Rules for English Consonant Allophones

1. Consonants are longer when at the end of a phrase.

• bib, did, don, nod

2. Voiceless stops are aspirated when they are initial sounds.

• Pip [pʰɪp test [tʰɛst] kick [kʰɪk]

3. Obstruents – (stops and fricatives) voiced and slightly obstruct the airflow.

Page 14: Consonants Part II

Rules for English Consonant Allophones

4. Voiced stops and fricatives /b, d, g, ʤ/ are voiceless when syllable initial, except when preceded by a voiced sound (a day)

5. Voiceless stops / p, t, k/ are unaspirated after / s / (spew, stew, skew)

6. Voiceless obstruents / p, t, k, ʧ, f, ɵ, s, ʃ / are longer than the voiced obstruents /b, d, g, ʤ, v, ð, z, ʒ /

Page 15: Consonants Part II

Rules for English Consonant Allophones

7. The approximants / w, r, j, l / are at least partially voiceless when they occur after initial / p, t, k / as in play, twin, cue.

8. The gestures for consecutive stops overlap, so that stops are unexploded when they occur before another stop

• Apt [æp̚ t] rubbed [ rʌb̚ d]

Page 16: Consonants Part II

Rules for English Consonant Allophones

9. In many accents of English, final syllable / p, t, k/ are accompanied by an overlapping glottal stop gesture

• Tip [tɪʔp] pit [pɪʔt] kick [kɪʔk]

10. In many accents of English, / t / is replaced by a glottal stop when it occurs before an alveolar nasal in the same word . Beaten [biʔnˌ]

Page 17: Consonants Part II

Rules for English Consonant Allophones

11.Nasals are syllabic at the end of a word when immediately after an obstruent.

• leaden [lɛdnˌ] chasm [ʧæzmˌ]

12.The lateral / l / is syllabic at the end of a word when immediately after a consonant.

• whistle [wɪslˌ] kennel [kɛnlˌ]

Page 18: Consonants Part II

Rules for English Consonant Allophones

13.Alveolar stops become voiced taps when they occur between two vowels, the second of which is unstressed.

• City [sɪʕi]

14.Alveolar consonants become dentals before dental consonants.

• Eighth [eɪt̪ɵ] tenth [tɛn̪ɵ] wealth [wɛl̪ɵ]

Page 19: Consonants Part II

Rules for English Consonant Allophones

15. Alveolar stops are reduced or omitted when between two consonants.

• Most people [moʊs ‘piplˌ] • Send papers [sɛn peɪpɝz]

16.A consonant is shortened when it is before an identical consonant.

• Cap, kept, kit, key• Gap, get, give, geese

Page 20: Consonants Part II

Rules for English Consonant Allophones

18.Velar stops become more front before front vowels.

1. Gap, get, give, geese

19.The lateral / l / is velarized when after a vowel or before a consonant at the end of a word.

1. Life [laɪf] file [faɪɫ]2. Clap [klæp]talc [tæɫk]3. Feeling [filɪŋ] feel [fiɫ]

Page 21: Consonants Part II

Diacritics

• Some diacritics modify the value of a symbol

• / ˳ / Voiceless• /ʰ / aspirated• / ̪ / Dental• / ˜ / Nasalized• / ~ / Velarized• / ˌ / Syllabic