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Approximant consonant

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Approximant consonant
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{{Manner of articulation}}{{IPA notice}}Approximants are speech sounds that involve the articulators approaching each other but not narrowly enough{{Harvcoltxt|Ladefoged|1975|p=277}} nor with enough articulatory precision{{Harvcoltxt|Martínez-Celdrán|2004|p=201}}, citing {{Harvcoltxt|Ladefoged|Maddieson|1996}} to create turbulent airflow. Therefore, approximants fall between fricatives, which do produce a turbulent airstream, and vowels, which produce no turbulence.{{sfnp|Martínez-Celdrán|2004|p=201}} This class is composed of sounds like {{IPA|[ɹ]}} (as in rest) and semivowels like {{IPA|[j]}} and {{IPA|[w]}} (as in yes and west, respectively), as well as lateral approximants like {{IPA|[l]}} (as in less).{{sfnp|Martínez-Celdrán|2004|p=201}}

Terminology

Before Peter Ladefoged coined the term "approximant" in the 1960s,{{Harvcoltxt|Martínez-Celdrán|2004|p=201}}, pointing to {{Harvcoltxt|Ladefoged|1964|p=25}} the term "frictionless continuant" referred to non-lateral approximants.In phonology, "approximant" is also a distinctive feature that encompasses all oral sonorants, including vowels and liquids such as taps and trills.{{sfnp|Hall|2007|p=316}}

Semivowels

Some approximants resemble vowels in acoustic and articulatory properties and the terms semivowel and glide are often used for these non-syllabic vowel-like segments. The correlation between semivowels and vowels is strong enough that cross-language differences between semivowels correspond with the differences between their related vowels.{{Harvcoltxt|Ladefoged|Maddieson|1996|p=323}}, citing {{Harvcoltxt|Maddieson|Emmorey|1985}}Vowels and their corresponding semivowels alternate in many languages depending on the phonological environment, or for grammatical reasons, as is the case with Indo-European ablaut. Similarly, languages often avoid configurations where a semivowel precedes its corresponding vowel.{{Harvcoltxt|Rubach|2002|p=680}}, citing {{Harvcoltxt|Kawasaki|1982}} A number of phoneticians distinguish between semivowels and approximants by their location in a syllable. Although he uses the terms interchangeably, {{Harvcoltxt|Montreuil|2004|p=104}} remarks that, for example, the final glides of English par and buy differ from French par ('through') and baille ('tub') in that, in the latter pair, the approximants appear in the syllable coda, whereas, in the former, they appear in the syllable nucleus. This means that opaque (if not minimal) contrasts can occur in languages like Italian (with the i-like sound of piede 'foot', appearing in the nucleus: {{IPA|[ˈpi̯ɛˑde]}}, and that of piano 'slow', appearing in the syllable onset: {{IPA|[ˈpjaˑno]}}){{Harvcoltxt|Montreuil|2004|p=104}} and Spanish (with a near minimal pair being abyecto {{IPA|[aβˈjekto]}} 'abject' and abierto {{IPA|[aˈβi̯erto]}} 'opened').{{Harvcoltxt|Saporta|1956|p=288}}
{|class="wikitable" border="1"
Martínez-Celdrán|2004|p=202}}{{Harvcoltxt|Ladefoged|Maddieson|1996|p=323}}! Vowel! Correspondingapproximant! Place of articulation! Example
i}} {{IPA| Spanish amplío ('I extend') vs. amplió ('he extended')
y}} {{IPA| French aigu ('sharp') vs. aiguille ('needle')
ɯ}} {{IPAdate=August 2016}}
u}} {{IPA| Spanish continúo ('I continue') vs. continuó ('he continued')
É‘}} {{IPAdate=January 2010}}
Éš}} {{IPARetroflex|English waiter vs. waitress
{{note|Retroflex|*}} Because of the articulatory complexities of the American English rhotic, there is some variation in its phonetic description. A transcription with the IPA character for an alveolar approximant ({{IPA|[ɹ]}}) is common, though the sound is more postalveolar. Actual retroflexion may occur as well and both occur as variations of the same sound.{{Harvcoltxt|Hallé|Best|Levitt|1999|p=283}} citing {{Harvcoltxt|Delattre|Freeman|1968}}, {{Harvcoltxt|Zawadzki|Kuehn|1980}}, and {{Harvcoltxt|Boyce|Espy-Wilson|1997}} However, {{Harvcoltxt|Catford|1988|p=161f}} makes a distinction between the vowels of American English (which he calls "rhotacized") and vowels with "retroflexion" such as those that appear in Badaga; {{Harvcoltxt|Trask|1996|p=310}}, on the other hand, labels both as r-colored and notes that both have a lowered third formant.Both cited in {{Harvcoltxt|Hamann|2003|pp=25–26}} {{note|Retroflex|**}} Because the vowels {{IPA|[i ɯ]}} are articulated with spread lips, spreading is implied for their approximant analogues, {{IPA|[j ɰ]}}. However, these sounds generally have little or no lip-spreading. The fricative letters with a lowering diacritic, {{angbr IPA|ʝ˕ ɣ˕}}, may therefore be justified for a neutral articulation between spread {{IPA|[j ɰ]}} and rounded {{IPA|[ɥ w]}}.John Esling (2010) "Phonetic Notation", in Hardcastle, Laver & Gibbon (eds) The Handbook of Phonetic Sciences, 2nd ed., p 699.
In articulation and often diachronically, palatal approximants correspond to front vowels, velar approximants to back vowels, and labialized approximants to rounded vowels. In American English, the rhotic approximant corresponds to the rhotic vowel. This can create alternations (as shown in the above table).In addition to alternations, glides can be inserted to the left or the right of their corresponding vowels when they occur next to a hiatus.{{Harvcoltxt|Rubach|2002|p=672}} For example, in Ukrainian, medial {{IPA|/i/}} triggers the formation of an inserted {{IPA|[j]}} that acts as a syllable onset so that when the affix {{IPA|/-ist/}} is added to футбол ('football') to make футболіст 'football player', it is pronounced {{IPA|[futbo̞ˈlist]}}, but маоїст ('Maoist'), with the same affix, is pronounced {{IPA|[mao̞ˈjist]}} with a glide.{{Harvcoltxt|Rubach|2002|pp=675–676}} Dutch for many speakers has a similar process that extends to mid vowels:{{Harvcoltxt|Rubach|2002|pp=677–678}}
  • bioscoop → {{IPA|[bijÉ”skoːp]}} ('cinema')
  • zee + en → {{IPA|[zeːjÉ™(n)]}} ('seas')
  • fluor → {{IPA|[flyɥɔr]}} ('fluor')
  • reu + en → {{IPA|[røɥə(n)]}} ('male dogs')
  • Rwanda → {{IPA|[ruÊ‹andɐ]}} ('Rwanda')There is dialectal and allophonic variation in the realization of {{IPA|/Ê‹/}}. For speakers who realize it as {{IPA|[Ê‹]}}, {{Harvcoltxt|Rubach|2002|p=683}} postulates an additional rule that changes any occurrence of {{IPA|[w]}} from glide insertion into {{IPA|[Ê‹]}}.
  • Boaz → {{IPA|[boÊ‹as]}} ('Boaz')
Similarly, vowels can be inserted next to their corresponding glide in certain phonetic environments. Sievers' law describes this behaviour for Germanic.Non-high semivowels also occur. In colloquial Nepali speech, a process of glide-formation occurs, where one of two adjacent vowels becomes non-syllabic; the process includes mid vowels so that {{IPA|[dʱo̯a]}} ('cause to wish') features a non-syllabic mid vowel.{{Harvcoltxt|Ladefoged|Maddieson|1996|pp=323–324}} Spanish features a similar process and even nonsyllabic {{IPA|/a/}} can occur so that ahorita ('right away') is pronounced {{IPA|[a̯o̞ˈɾita]}}.{{Harvcoltxt|Martínez-Celdrán|Fernández-Planas|Carrera-Sabaté|2003|pp=256–257}} It is not often clear, however, whether such sequences involve a semivowel (a consonant) or a diphthong (a vowel), and in many cases, it may not be a meaningful distinction.Although many languages have central vowels {{IPA|[ɨ, ʉ]}}, which lie between back/velar {{IPA|[ɯ, u]}} and front/palatal {{IPA|[i, y]}}, there are few cases of a corresponding approximant {{IPA|[ ȷ̈]}}. One is in the Korean diphthong {{IPA|[ ȷ̈i]}} or {{IPA|[ɨ̯i]}}WEB,weblink Ahn & Iverson (2006), 2010-12-31,weblink 2011-07-20, dead, though it is more frequently analyzed as velar (as in the table above), and Mapudungun may be another, with three high vowel sounds, {{IPA|/i/}}, {{IPA|/u/}}, {{IPA|/ɨ/}} and three corresponding consonants, {{IPA|/j/}}, and {{IPA|/w/}}, and a third one is often described as a voiced unrounded velar fricative; some texts note a correspondence between this approximant and {{IPA|/ɨ/}} that is parallel to {{IPA|/j/}}–{{IPA|/i/}} and {{IPA|/w/}}–{{IPA|/u/}}. An example is liq {{IPA|/ˈliɣ/}} ({{IPA|[ˈliɨ̯]}}?) ('white').Listen to a recording {{webarchive |url=https://web.archive.org/web/20060226053417weblink |date=February 26, 2006 }}

Approximants versus fricatives

In addition to less turbulence, approximants also differ from fricatives in the precision required to produce them.{{Harvcoltxt|Boersma|1997|p=12}} When emphasized, approximants may be slightly fricated (that is, the airstream may become slightly turbulent), which is reminiscent of fricatives. For example, the Spanish word ayuda ('help') features a palatal approximant that is pronounced as a fricative in emphatic speech.{{Harvcoltxt|Martínez-Celdrán|2004|p=204}} Spanish can be analyzed as having a meaningful distinction between fricative, approximant, and intermediate {{IPA|/ʝ ʝ˕ j/}}.Martínez-Celdrán, E. (2004) Problems in the classification of approximants. Journal of the International Phonetic Association, 34, 201–10. However, such frication is generally slight and intermittent, unlike the strong turbulence of fricative consonants.Because voicelessness has comparatively reduced resistance to air flow from the lungs, the increased air flow creates more turbulence, making acoustic distinctions between voiceless approximants (which are extremely rare cross-linguistically{{Harvcoltxt|Blevins|2006|p=13}}) and voiceless fricatives difficult.{{Harvcoltxt|Ohala|2005|p=276}} This is why, for example, no language is known to contrast the voiceless labialized velar approximant {{IPA|[w̥]}} (also transcribed with the special letter {{angbr IPA|ʍ}}) with a voiceless labialized velar fricative {{IPA|[xʷ]}}.{{Harvcoltxt|Ladefoged|Maddieson|1996|p=326}} Similarly, Standard Tibetan has a voiceless lateral approximant, {{IPA|[l̥]}}, and Welsh has a voiceless lateral fricative {{IPA|[ɬ]}}, but the distinction is not always clear from descriptions of these languages. Again, no language is known to contrast the two. Iaai is reported to have an unusually large number of voiceless approximants, with {{IPA|/l̥ ɥ̊ w̥/}}.For places of articulation further back in the mouth, languages do not contrast voiced fricatives and approximants. Therefore, the IPA allows the symbols for the voiced fricatives to double for the approximants, with or without a lowering diacritic. {{citation needed|date=June 2019}}Occasionally, the glottal "fricatives" are called approximants, since {{IPA|[h]}} typically has no more frication than voiceless approximants, but they are often phonations of the glottis without any accompanying manner or place of articulation.

Central approximants

Lateral approximants

In lateral approximants, the center of tongue makes solid contact with the roof of the mouth. However, the defining location is the side of the tongue, which only approaches the teeth.

Coarticulated approximants with dedicated IPA symbols

Voiceless approximants

Voiceless approximants are rarely distinguished from voiceless fricatives. Iaai has an unusually large number of them, with {{IPA|/l̥ ɥ̊ w̥/}} contrasting with {{IPA|/l ɥ w/}} (as well as a large number of voiceless nasals). Attested voiceless approximants are:Bickford & Floyd (2006), augmented by sources at individual articles for the glottal approximants

Nasal approximants

(Not to be confused with 'nasal continuant', which is a synonym for nasal consonant)Examples are: In Portuguese, the nasal glides {{IPA|[j̃]}} and {{IPA|[w̃]}} historically became {{IPA|/ɲ/}} and {{IPA|/m/}} in some words. In Edo, the nasalized allophones of the approximants {{IPA|/j/}} and {{IPA|/w/}} are nasal occlusives, {{IPA|[ɲ]}} and {{IPA|[ŋʷ]}}.What are transcribed as nasal approximants may include non-syllabic elements of nasal vowels or diphthongs.

See also

{{Wiktionary|approximant}}

Notes

{{Reflist}}

References

  • {{citation|last=Blevins|first=Juliette|year=2006|title=New perspectives on English sound patterns: "natural" and "unnatural" in evolutionary phonology|journal=Journal of English Linguistics|volume=34|pages=6–25|doi=10.1177/0075424206287585
}}
  • {hide}citation|last=Boersma|first=Paul|year=1997|chapter=Sound change in functional phonology|title=Functional Phonology: Formalizing the Interactions Between Articulatory and Perceptual Drives|place=The Hague|publisher=Holland Academic Graphics
{edih}
  • {{citation|last=Boyce|first=S.|last2=Espy-Wilson|first2=C.|year=1997|title= Coarticulatory stability in American English /r/|journal=Journal of the Acoustical Society of America|volume=101|issue=6|pages=3741–3753|doi=10.1121/1.418333|pmid=9193061|bibcode=1997ASAJ..101.3741B|citeseerx=10.1.1.16.4174
}}
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}}
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}}
  • {{citation|last=Hallé|first=Pierre A.|last2=Best|first2=Catherine T.|last3=Levitt|first3=Andrea|last4=Andrea|year=1999|title=Phonetic vs. phonological influences on French listeners' perception of American English approximants|journal=Journal of Phonetics|volume=27|issue=3|pages=281–306|doi=10.1006/jpho.1999.0097
}}
  • {{Citation|last=Hamann|first=Silke|year=2003|title=The Phonetics and Phonology of Retroflexes|place=Utrecht|isbn=90-76864-39-X|postscript=|url=http://dspace.library.uu.nl:8080/handle/1874/627
}}{{Dead link|date=October 2019 |bot=InternetArchiveBot |fix-attempted=yes }}
  • {hide}citation|last=Kawasaki|first=Haruko|year=1982|title=An acoustical basis for universal constraints on sound sequences (doctoral dissertation)|publisher=University of California, Berkeley
{edih}
  • {hide}Citation|last=Ladefoged|first=Peter|authorlink=Peter Ladefoged|year=1964|title=A Phonetic Study of West African Languages|place=Cambridge|publisher=Cambridge University Press|postscript=
{edih}
  • {hide}Citation|last=Ladefoged|first=Peter|year=1975|title=A Course in Phonetics|place=New York|publisher=Harcourt Brace Jovanovich|postscript=
{edih}
  • {{SOWL}}
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}}
  • {{citation|last=Martínez-Celdrán|first=Eugenio|year=2004|title=Problems in the classification of approximants|journal=Journal of the International Phonetic Association|volume=34|issue=2|pages=201–210|doi=10.1017/S0025100304001732
}}
  • {{citation|last=Martínez-Celdrán|first=Eugenio |last2=Fernández-Planas|first2=Ana Ma.|last3=Carrera-Sabaté|first3=Josefina |year=2003|title=Castilian Spanish|journal=Journal of the International Phonetic Association|volume=33|issue=2|pages=255–259|doi=10.1017/S0025100303001373|url=https://www.academia.edu/11365507/Castilian_Spanish
}}
  • {{citation|last=Montreuil|first=Jean-Pierre|year=2004|title=From velar codas to high nuclei: phonetic and structural change in OT|journal=Probus|volume=16|pages=91–111|doi=10.1515/prbs.2004.005
}}
  • {{citation|last=Rubach|first=Jerzy|year=2002|title=Against subsegmental glides|journal=Linguistic Inquiry|volume=33|issue=4|pages=672–687|doi=10.1162/ling.2002.33.4.672
}}
  • {{citation|last=Ohala|first=John|year=2005|title=Phonetic Explanations for Sound Patterns: Implications for Grammars of Competence|journal=UC Berkeley PhonLab Annual Report|volume=1|pages=269–288|url=https://escholarship.org/content/qt5m77t155/qt5m77t155.pdf
}}
  • {{citation|last=Saporta|first=Sol|year=1956|title=A Note on Spanish Semivowels|journal=Language|volume=32|issue=2|pages=287–290|doi = 10.2307/411006|jstor=411006
}}
  • {{Citation|last=Trask|first=Robert L.|year=1996|title=A Dictionary of Phonetics and Phonology|place=London|publisher=Routledge|postscript=
}}
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}}{{IPA navigation}}

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