Presentation Transcript

1. Phonology:Contrast and complementary distribution LING 200 Spring 2006

2. Phonemic vs. phonetic representations • Phonetic representation • directly observable • contains measurable properties • Phonemic representation • inferred, not observed • abstract, streamlined representation of sound

3. In English, which of the following sounds are allophones of /p/? • [p] only • [ph] only • [p] and [ph] • [p], [ph] and [b]

4. In Witsuwit’en, [] is not considered a phoneme because • [] is in complementary distribution with [] • [] contrasts with [A] • [] contrasts with []

5. Inferring the phonemic representation • Primarily, use evidence from: • Minimal pairs/sets (‘contrast’) • Distributional properties of sounds (restricted distribution, such as ‘complementary distribution’)

6. Minimal pairs • Two words which differ in meaning and along only one phonetic parameter • A minimal pair for voicing • [kræbi] vs. [kræpi] • therefore, /p b/ in English • A minimal pair for labio-dental vs. interdental place • [TIn] vs. [fIn] • therefore, /T f/ in English • Minimal pairs • contain phonemes • are a guide to the phoneme inventory • the phonetic difference between the pair is not attributable to context

7. Minimal sets • A minimal set for vowel height • [hid] (heed) • [hId] (hid) • [hed] (hayed) • [hEd] (head) • [hæd] (had)

8. A near-minimal set • [tjd] (toyed) • [hAjd] (hide) • [hAwd] (how’d)

9. Evidence from restricted distribution • When aspects of pronunciation are predictable, most likely due to influence of • Neighboring sound • Position (within word, for example)

10. Mohawk • Iroquoian family; spoken in Quebec, Ontario, and New York

11. Voicing in Mohawk • Observation: [p t k b d g] are all sounds of Mohawk • Suspicion: there are no minimal or near-minimal pairs for voicing • Question: Is stop voicing phonemic or predictable?

12. Mohawk phonetic data [V:] = long vowel, [C] = voiceless consonant of interest: [p t k b d g]

13. Finding patterns in a mass of data • Often it is useful to • rearrange the data • simplify the data • eliminate likely extraneous elements by listing what immediately precedes and follows, including position

14. Stop distribution # = word edge

15. Summarized contexts • [p t k] and [b d g] are in complementary distribution in Mohawk.

16. The next step • Beyond complementary distribution: Writing a phonological rule • Which of the following rules? • Mohawk grammar1: Mohawk has /p t k/ and rule of Voicing (stops are voiced before vowels). or? • Mohawk grammar2: Mohawk has /b d g/ and rule of Devoicing (stops are voiceless word finally or before a consonant).

17. Writing the phonological rule • Choose Voicing. Why? • Voicing rule is simpler than Devoicing rule • Voicing: “...before vowels.” • Devoicing: “...word finally or before a consonant.” • (A second reason why a linguist would prefer Mohawk grammar1: If Voicing, then Mohawk consonant inventory contains /p t k/. If Devoicing, then /b d g/. But there are no languages with /b d g/ which lack /p t k/. I.e. voiced stops  voiceless stops (an implicational universal).)

18. A further thought • What about the voiced affricate []? • One example in this data set: • [iks]‘fly’ • Observation: like [b d g], the voiced palatal affricate occurs before a vowel. (Stops and affricates often pattern together.)

19. Mohawk consonant inventory Notice that Voicing applies to all of the stops and affricates in Mohawk (that can be voiced).

20. Revised rule • In Mohawk, • Stops and affricates are voiced before vowels, and voiceless elsewhere. (sentence formulation of rule) • /p t c k/  [b d  g] / ___ V • (  [p t ck] / …) • (‘arrow’ formulation of rule) … = elsewhere

21. Writing phonological rules • A common format /A/  B / C ___ D A = phoneme(s) which undergo the rule B = aspect of pronunciation changed (allophone created) / = in the context of ___ = location of phoneme in context C, D = conditioning elements of the context • = ‘A becomes or adds B when preceded by C and followed by D’

22. What kind of phonological rule is Mohawk Voicing? Hint: vowels are voiced (unless transcribed with diacritic for voicelessness, [V]. • Assimilation • Dissimilation • Epenthesis • Deletion

23. Ganda, a.k.a. Luganda

24. Ganda Liquids

25. Ganda transcription notes • [a] = low back unrounded vowel • [] = voiced palatal stop (cf. [c]) • [uu] = long [u] ([u:]) • [dd] = long [d] ([d:])

26. Ganda liquids • [r] and [l] are in complementary distribution in Ganda. State the conditions under which appears.

27. In Ganda, • /r/  [l] / back V __, # ___; [r] / … • /l/  [r] / front V___; [l] / … • None of the above.

28. Ganda liquids in loanword phonology • In loans from other languages, sometimes Ganda has [r] where the source language has [l], etc. • Why?

29. In borrowed words, why do Ganda speakers sometimes have [l] where the source language has [r], and vice versa? • Ganda speakers cannot pronounce liquids properly. • Ganda speakers pronounce liquids according to Ganda phonology. • The distribution is random. • Liquids in borrowed words are pronounced according to the phonology of the source language.