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Voiceless velar fricative
x
IPA number	140
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Entity (decimal)	x
Unicode (hex)	U+0078
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The voiceless velar fricative is a type of consonantal sound used in some spoken languages. It was part of the consonant inventory of Old English and can still be found in some dialects of English, most notably in Scottish English, e.g. in loch, broch or saugh (willow).

The symbol in the International Phonetic Alphabet that represents this sound is ⟨x⟩, the Latin letter x. It is also used in broad transcription instead of the symbol ⟨χ⟩, the Greek chi, for the voiceless uvular fricative.

There is also a voiceless post-velar fricative (also called pre-uvular) in some languages, which can be transcribed as or . For voiceless pre-velar fricative (also called post-palatal), see voiceless palatal fricative.

Some scholars also posit the voiceless velar approximant distinct from the fricative, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is ⟨ɰ̊⟩, but this symbol is not suitable in case of the voiceless velar approximant that is unspecified for rounding (the sound represented by the symbol ⟨ɰ̊⟩ is specified as unrounded), which is best transcribed as ⟨x̞⟩, ⟨ɣ̞̊⟩ or ⟨ɣ̊˕⟩ - see voiced velar approximant. The velar approximant can in many cases be considered the semivocalic equivalent of the voiceless variant of the close back unrounded vowel ⟨ɯ̊⟩.

Features

Features of the voiceless velar fricative:

• Its manner of articulation is fricative, which means it is produced by constricting air flow through a narrow channel at the place of articulation, causing turbulence.
• Its place of articulation is velar, which means it is articulated with the back of the tongue (the dorsum) at the soft palate.
• Its phonation is voiceless, which means it is produced without vibrations of the vocal cords. In some languages the vocal cords are actively separated, so it is always voiceless; in others the cords are lax, so that it may take on the voicing of adjacent sounds.
• It is an oral consonant, which means air is allowed to escape through the mouth only.
• It is a central consonant, which means it is produced by directing the airstream along the center of the tongue, rather than to the sides.
• Its airstream mechanism is pulmonic, which means it is articulated by pushing air solely with the intercostal muscles and abdominal muscles, as in most sounds.

Varieties

Occurrence

The voiceless velar fricative and its labialized variety are postulated to have occurred in Proto-Germanic, the ancestor of the Germanic languages, as the reflex of the Proto-Indo-European voiceless palatal and velar stops and the labialized voiceless velar stop. Thus Proto-Indo-European *ḱr̥nom "horn" and *kʷód "what" became Proto-Germanic *hurnan and *hwat, where *h and *hw were likely and . This sound change is part of Grimm's law.

In Modern Greek, the voiceless velar fricative (with its allophone, the voiceless palatal fricative [ç], occurring before front vowels) originated from the Ancient Greek voiceless aspirated stop /kʰ/ in a sound change that lenited Greek aspirated stops into fricatives.

Related consonants

See also

• Guttural
• Index of phonetics articles

Notes

1. Watson (2002), pp. 17, 19–20, 35–36 and 38.
2. ^ Hualde & Ortiz de Urbina (2003), pp. 16 and 26.
3. Hualde & Ortiz de Urbina (2003), p. 16.
4. "Blackfoot Pronunciation and Spelling Guide". Native-Languages.org. Retrieved 2007-04-10.
5. Bhadriraju Krishnamurti (2003), p. 100.
6. Ternes, Elmer; Vladimirova-Buhtz, Tatjana (1999). "Bulgarian". Handbook of the International Phonetic Association. Cambridge University Press. p. 55. ISBN 978-0-521-63751-0.
7. Verhoeven (2005:243)
8. ^ Collins & Mees (2003:191)
9. Gussenhoven (1999:74)
10. "Annexe 4: Linguistic Variables". Archived from the original on 2021-02-25. Retrieved 2014-12-03.
11. "University of Essex :: Department of Language and Linguistics :: Welcome". Essex.ac.uk. Retrieved 2013-08-01.
12. Wells (1982:373)
13. Shosted & Chikovani (2006), p. 255.
14. Okada, Hideo (December 1991). "Japanese". Journal of the International Phonetic Association. 21 (2): 94–96. doi:10.1017/S002510030000445X. S2CID 242782215. Retrieved 14 July 2022.
15. Bhadriraju Krishnamurti (2003), p. 74.
16. Gussenhoven & Aarts (1999:159)
17. Peters (2006:119)
18. ^ Vanvik (1979), p. 40.
19. ^ "Nordavinden og sola: Opptak og transkripsjoner av norske dialekter". Archived from the original on 4 March 2016. Retrieved 13 April 2015.
20. Jassem (2003), p. 103.
21. Barbosa & Albano (2004), pp. 5–6.
22. Padgett (2003), p. 42.
23. Oftedal, M. (1956) The Gaelic of Leurbost. Oslo. Norsk Tidskrift for Sprogvidenskap.
24. Martínez-Celdrán, Fernández-Planas & Carrera-Sabaté (2003), p. 255.
25. ^ Chen (2007), p. 13.
26. Hamond (2001:?), cited in Scipione & Sayahi (2005:128)
27. ^ Lyons (1981), p. 76.
28. Harris & Vincent (1988), p. 83.
29. ^ Wetzels & Mascaró (2001), p. 224.
30. Bhadriraju Krishnamurti (2003), p. 149.
31. ^ Göksel & Kerslake (2005:6)
32. ^ Sjoberg (1963), pp. 11–12.
33. Thompson (1959), pp. 458–461.
34. Merrill (2008), p. 109.

References

• Arvaniti, Amalia (2007), "Greek Phonetics: The State of the Art" (PDF), Journal of Greek Linguistics, 8: 97–208, CiteSeerX 10.1.1.692.1365, doi:10.1075/jgl.8.08arv, archived from the original (PDF) on 2013-12-11
• Barbosa, Plínio A.; Albano, Eleonora C. (2004), "Brazilian Portuguese", Journal of the International Phonetic Association, 34 (2): 227–232, doi:10.1017/S0025100304001756
• Chen, Yudong (2007), A Comparison of Spanish Produced by Chinese L2 Learners and Native Speakers---an Acoustic Phonetics Approach, ISBN 9780549464037
• Collins, Beverley; Mees, Inger M. (2003) , The Phonetics of English and Dutch (5th ed.), Leiden: Brill Publishers, ISBN 978-9004103405
• Göksel, Asli; Kerslake, Celia (2005), Turkish: a comprehensive grammar, Routledge, ISBN 978-0415114943
• Gussenhoven, Carlos (1999), "Dutch", Handbook of the International Phonetic Association: A guide to the use of the International Phonetic Alphabet, Cambridge: Cambridge University Press, pp. 74–77, ISBN 978-0-521-65236-0
• Gussenhoven, Carlos; Aarts, Flor (1999), "The dialect of Maastricht" (PDF), Journal of the International Phonetic Association, 29 (2): 155–166, doi:10.1017/S0025100300006526, S2CID 145782045
• Hamond, Robert M. (2001), The Sounds of Spanish: Analysis and Application, Cascadilla Press, ISBN 978-1-57473-018-0
• Harris, Martin; Vincent, Nigel (1988), "Spanish", The Romance Languages, Taylor & Francis, pp. 79–130, ISBN 978-0-415-16417-7
• Hualde, José Ignacio; Ortiz de Urbina, Jon (2003), A Grammar of Basque, Berlin: Mouton de Gruyter, ISBN 978-3-11-017683-4
• Jassem, Wiktor (2003), "Polish", Journal of the International Phonetic Association, 33 (1): 103–107, doi:10.1017/S0025100303001191
• Bhadriraju Krishnamurti (2003). The Dravidian languages. Oxford University Press.
• Lyons, John (1981), Language and Linguistics: An Introduction, Cambridge University Press, ISBN 978-0-521-54088-9
• Martínez-Celdrán, Eugenio; Fernández-Planas, Ana Ma.; Carrera-Sabaté, Josefina (2003), "Castilian Spanish", Journal of the International Phonetic Association, 33 (2): 255–259, doi:10.1017/S0025100303001373
• Merrill, Elizabeth (2008), "Tilquiapan Zapotec" (PDF), Journal of the International Phonetic Association, 38 (1): 107–114, doi:10.1017/S0025100308003344
• Padgett, Jaye (2003), "Contrast and Post-Velar Fronting in Russian", Natural Language & Linguistic Theory, 21 (1): 39–87, doi:10.1023/A:1021879906505, S2CID 13470826
• Peters, Jörg (2006), "The dialect of Hasselt", Journal of the International Phonetic Association, 36 (1): 117–124, doi:10.1017/S0025100306002428
• Scipione, Ruth; Sayahi, Lotfi (2005), "Consonantal Variation of Spanish in Northern Morocco" (PDF), in Sayahi, Lotfi; Westmoreland, Maurice (eds.), Selected Proceedings of the Second Workshop on Spanish Sociolinguistics, Somerville, MA: Cascadilla Proceedings Project
• Shosted, Ryan K.; Chikovani, Vakhtang (2006), "Standard Georgian" (PDF), Journal of the International Phonetic Association, 36 (2): 255–264, doi:10.1017/S0025100306002659
• Sjoberg, Andrée F. (1963), Uzbek Structural Grammar, Uralic and Altaic Series, vol. 18, Bloomington: Indiana University
• Thompson, Laurence (1959), "Saigon phonemics", Language, 35 (3): 454–476, doi:10.2307/411232, JSTOR 411232
• Vanvik, Arne (1979), Norsk fonetikk, Oslo: Universitetet i Oslo, ISBN 978-82-990584-0-7
• Verhoeven, Jo (2005), "Belgian Standard Dutch", Journal of the International Phonetic Association, 35 (2): 243–247, doi:10.1017/S0025100305002173
• Watson, Kevin (2007), "Liverpool English" (PDF), Journal of the International Phonetic Association, 37 (3): 351–360, doi:10.1017/s0025100307003180
• Watson, Janet C. E. (2002), The Phonology and Morphology of Arabic, New York: Oxford University Press
• Wells, J.C. (1982), Accents of English 2: The British Isles, Cambridge: Cambridge University Press
• Wetzels, W. Leo; Mascaró, Joan (2001), "The Typology of Voicing and Devoicing" (PDF), Language, 77 (2): 207–244, doi:10.1353/lan.2001.0123, S2CID 28948663

External links

• List of languages with [x] on PHOIBLE

v t e International Phonetic Alphabet (chart)
IPA topics IPA International Phonetic Association History of the alphabet Extensions for disordered speech (extIPA) Voice Quality Symbols (VoQS) Journal of the IPA (JIPA) Special topics Cursive forms Case variants Obsolete and nonstandard symbols Naming conventions Sinological extensions World Orthography IPA chart for English dialects Encodings ASCII encodings SAMPA X-SAMPA Kirshenbaum TIPA Phonetic symbols in Unicode IPA number IPA Braille
Consonants Pulmonic consonants Place → Labial Coronal Dorsal Laryngeal Manner ↓ Bi­labial Labio­dental Linguo­labial Dental Alveolar Post­alveolar Retro­flex Palatal Velar Uvular Pharyn­geal/epi­glottal Glottal Nasal m̥ m ɱ̊ ɱ n̼ n̥ n ɳ̊ ɳ ɲ̊ ɲ ŋ̊ ŋ ɴ̥ ɴ Plosive p b p̪ b̪ t̼ d̼ t d ʈ ɖ c ɟ k ɡ q ɢ ʡ ʔ Sibilant affricate ts dz t̠ʃ d̠ʒ tʂ dʐ tɕ dʑ Non-sibilant affricate pɸ bβ p̪f b̪v t̪θ d̪ð tɹ̝̊ dɹ̝ t̠ɹ̠̊˔ d̠ɹ̠˔ cç ɟʝ kx ɡɣ qχ ɢʁ ʡʜ ʡʢ ʔh Sibilant fricative s z ʃ ʒ ʂ ʐ ɕ ʑ Non-sibilant fricative ɸ β f v θ̼ ð̼ θ ð θ̠ ð̠ ɹ̠̊˔ ɹ̠˔ ɻ̊˔ ɻ˔ ç ʝ x ɣ χ ʁ ħ ʕ h ɦ Approximant ʋ ɹ ɻ j ɰ ʔ̞ Tap/flap ⱱ̟ ⱱ ɾ̼ ɾ̥ ɾ ɽ̊ ɽ ɢ̆ ʡ̆ Trill ʙ̥ ʙ r̥ r ɽ̊r̥ ɽr ʀ̥ ʀ ʜ ʢ Lateral affricate tɬ dɮ tꞎ d𝼅 c𝼆 ɟʎ̝ k𝼄 ɡʟ̝ Lateral fricative ɬ ɮ ꞎ 𝼅 𝼆 ʎ̝ 𝼄 ʟ̝ Lateral approximant l ɭ ʎ ʟ ʟ̠ Lateral tap/flap ɺ̥ ɺ 𝼈̥ 𝼈 ʎ̆ ʟ̆ IPA help  audio full chart template Symbols to the right in a cell are voiced, to the left are voiceless. Shaded areas denote articulations judged impossible. Non-pulmonic consonants BL LD D A PA RF P V U EG Ejective Stop pʼ tʼ ʈʼ cʼ kʼ qʼ ʡʼ Affricate p̪fʼ t̪θʼ tsʼ t̠ʃʼ tʂʼ tɕʼ kxʼ qχʼ Fricative ɸʼ fʼ θʼ sʼ ʃʼ ʂʼ ɕʼ xʼ χʼ Lateral affricate tɬʼ c𝼆ʼ k𝼄ʼ q𝼄ʼ Lateral fricative ɬʼ Click (top: velar; bottom: uvular) Tenuis kʘ qʘ kǀ qǀ kǃ qǃ k𝼊 q𝼊 kǂ qǂ Voiced ɡʘ ɢʘ ɡǀ ɢǀ ɡǃ ɢǃ ɡ𝼊 ɢ𝼊 ɡǂ ɢǂ Nasal ŋʘ ɴʘ ŋǀ ɴǀ ŋǃ ɴǃ ŋ𝼊 ɴ𝼊 ŋǂ ɴǂ ʞ   Tenuis lateral kǁ qǁ Voiced lateral ɡǁ ɢǁ Nasal lateral ŋǁ ɴǁ Implosive Voiced ɓ ɗ ᶑ ʄ ɠ ʛ Voiceless ɓ̥ ɗ̥ ᶑ̊ ʄ̊ ɠ̊ ʛ̥ IPA help  audio full chart template Co-articulated consonants Nasal n͡m Labial–alveolar ɳ͡m Labial–retroflex ŋ͡m Labial–velar Plosive t͡pd͡b Labial–alveolar ʈ͡pɖ͡b Labial–retroflex k͡pɡ͡b Labial–velar q͡ʡ Uvular–epiglottal q͡p Labial–uvular Fricative/approximant ɥ̊ɥ Labial–palatal ʍw Labial–velar ɧ Sj-sound (variable) Lateral approximant ɫ Velarized alveolar Implosive ɠ̊͜ɓ̥ ɠ͡ɓ Labial–velar Ejective t͡pʼ Labial–alveolar IPA help full chart template Other Nasal labial–velar approximant Nasal palatal approximant Voiceless bidental fricative Voiceless bilabially post-trilled dental stop Voiceless nasal glottal approximant
Vowels Front Central Back Close i y ɨ ʉ ɯ u Near-close ɪ ʏ ʊ Close-mid e ø ɘ ɵ ɤ o Mid e̞ ø̞ ə ɤ̞ o̞ Open-mid ɛ œ ɜ ɞ ʌ ɔ Near-open æ ɐ Open a ɶ ä ɑ ɒ IPA help  audio full chart template Legend: unrounded • rounded

• Fricative consonants
• Velar consonants
• Pulmonic consonants
• Voiceless oral consonants
• Central consonants
• Voiceless approximants