Consonant Voicing and Devoicing
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Consonant Voicing and Devoicing
Sound change and alternation
Fortition
Dissimilation

In phonology, voicing (or sonorization) is a sound change where a voiceless consonant becomes voiced due to the influence of its phonological environment; shift in the opposite direction is referred to as devoicing or desonorization. Most commonly, the change is a result of sound assimilation with an adjacent sound of opposite voicing, but it can also occur word-finally or in contact with a specific vowel.

For example, the English suffix -s is pronounced [s] when it follows a voiceless phoneme (cats), and [z] when it follows a voiced phoneme (dogs).[1] This type of assimilation is called progressive, where the second consonant assimilates to the first; regressive assimilation goes in the opposite direction, as can be seen in have to [hæft?].

English

English no longer has a productive process of voicing stem-final fricatives when forming noun-verb pairs or plural nouns, but there are still examples of voicing from earlier in the history of English:

  • belief - believe
  • life - live
  • proof - prove
  • strife - strive
  • thief - thieve
  • bath ([?]) - bathe ([ð])
  • breath ([?]) - breathe ([ð])
  • mouth ([?], n.) - mouth ([ð], vb.)
  • sheath ([?]) - sheathe ([ð])
  • wreath ([?]) - wreathe ([ð])
  • house ([s], n.) - house ([z], vb.)
  • use ([s], n.) - use ([z], vb.)

Synchronically, the assimilation at morpheme boundaries is still productive, such as in:[2]

  • cat + s -> cats
  • dog + s -> dogs ([?z])
  • miss + ed -> missed ([st])
  • whizz + ed -> whizzed ([zd])

The voicing alternation found in plural formation is losing ground in the modern language,[]. Of the alternations listed below many speakers retain only the [f-v] pattern, which is supported by the orthography. This voicing of /f/ is a relic of Old English, at a time when the unvoiced consonants between voiced vowels were 'colored' by an allophonic voicing (lenition) rule /f/ -> [v]. As the language became more analytic and less inflectional, final vowels or syllables stopped being pronounced. For example, modern knives is a one syllable word instead of a two syllable word, with the vowel e not pronounced and no longer part of the word's structure. The voicing alternation between [f] and [v] occurs now as realizations of separate phonemes /f/ and /v/. The alternation pattern is well maintained for the items listed immediately below, but its loss as a productive allophonic rule permits its abandonment for new usages of even well-established terms: while leaf~leaves in reference to 'outgrowth of plant stem' remains vigorous, the Toronto ice hockey team is uncontroversially named the Maple Leafs.

  • knife - knives
  • leaf - leaves
  • wife - wives
  • wolf - wolves

The following mutations are optional:[]

  • bath ([?]) - baths ([ð])
  • mouth ([?]) - mouths ([ð])
  • oath ([?]) - oaths ([ð])
  • path ([?]) - paths ([ð])
  • youth ([?]) - youths ([ð])
  • house ([s]) - houses ([z])

Sonorants (/l r w j/) following aspirated fortis plosives (that is, /p t k/ in the onsets of stressed syllables unless preceded by /s/) are devoiced such as in please, crack, twin, and pewter.[3]

In other languages

Voicing assimilation

In many languages including Polish and Russian, there is anticipatory assimilation of unvoiced obstruents immediately before voiced obstruents. For example, Russian 'request' is pronounced /'proz?b?/ (instead of */'pros?b?/) and Polish pro?ba 'request' is pronounced /'prba/ (instead of */'prba/). This process can cross word boundaries as well, for example Russian ? /'dod b?/ 'daughter would'. The opposite type of anticipatory assimilation happens to voiced obstruents before unvoiced ones: ?? /?p'sp?t?/.

Final devoicing

Final devoicing is a systematic phonological process occurring in languages such as German, Dutch, Polish, and Russian, among others. In these languages, voiced obstruents in the syllable coda or at the end of a word become voiceless.

Initial voicing

Initial voicing is a process of historical sound change where voiceless consonants become voiced at the beginning of a word. For example, modern German sagen ['za:?n?], Yiddish ['zn?], and Dutch zeggen ['z] (all "say") all begin with [z], which derives from [s] in an earlier stage of Germanic, as still attested in English say, Swedish säga ['s?j:a], and Icelandic segja ['sei:ja]. Some English dialects were affected by this as well, but it is rare in Modern English. One example is fox (with the original consonant) compared to vixen (with a voiced consonant).

Notes

References

  • Roach, Peter (2004), "British English: Received Pronunciation", Journal of the International Phonetic Association, 34 (2): 239-245, doi:10.1017/S0025100304001768
  • Grijzenhout, Janet (2000), Voicing and devoicing in English, German, and Dutch; evidence for domain-specific identity constraints (PDF), archived from the original (PDF) on 2011-07-19, retrieved

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.

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