Voiceless uvular trill

The voiceless uvular trill is a type of consonantal sound, used in some dialects of some spoken languages. It is less common than its voiced counterpart.

Features

Features of the voiceless uvular trill:

Its manner of articulation is trill, which means it is produced by directing air over an articulator so that it vibrates.
Its place of articulation is uvular, which means it is articulated with the back of the tongue (the dorsum) at the uvula.
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.
The airstream mechanism is pulmonic, which means it is articulated by pushing air solely with the intercostal muscles and diaphragm, as in most sounds.

Language		Word	IPA	Meaning	Notes
Baïnounk Gubëeher	Some speakers[1]				Word-final allophone of /ɾ/.
French	Belgian[2]	triste	[t̪ʀ̥is̪t̪œ]	'sad'	Allophone of /ʁ/ after voiceless consonants; can be a fricative [χ] instead.[2] See French phonology
German	Standard[3]	treten	[ˈtʀ̥eːtn̩]	'to step'	Possible allophone of /r/ after voiceless consonants for speakers that realize /r/ as a uvular trill [ʀ].[3] See Standard German phonology
German	Chemnitz dialect[4]	Rock	[ʀ̥ɔkʰ]	'skirt'	In free variation with [ʁ̞], [ʁ], [χ] and [q]. Does not occur in the coda.[4]
Limburgish	Hasselt dialect[5]	geer	[ɣeːʀ̥]	'odour'	Possible word-final allophone of /ʀ/; may be alveolar [r̥] instead.[6] See Hasselt dialect phonology
Spanish	Ponce dialect[7]	perro	[ˈpe̞ʀ̥o̞]	'dog'	This and [χ] are the primary realizations of /r/ in this dialect.[7] See Spanish phonology

Cobbinah (2013), p. 166.
Demolin (2001), pp. 65, 67–68, 70–71.
Krech et al. (2009), p. 86.
Khan & Weise (2013), p. 235.
Peters (2006).
While Peters (2006) does not state that explicitly, he uses the symbol ⟨r̥⟩ for many instances of the word-final /r/.
"The Spanish of Ponce, Puerto Rico: A phonetic, phonological, and intonational analysis". October 2010. Archived from the original on 2014-05-24. Retrieved 2023-09-07.

Cobbinah, Alexander Yao (2013), Nominal classification and verbal nouns in Baïnounk Gubëeher (PDF), University of London
Demolin, Didier (2001). "Some phonetic and phonological observations concerning /ʀ/ in Belgian French". In van de Velde, Hans; van Hout, Roeland (eds.). 'r-atics. pp. 61–73. ISSN 0777-3692. {{cite book}}: |journal= ignored (help)
Khan, Sameer ud Dowla; Weise, Constanze (2013), "Upper Saxon (Chemnitz dialect)" (PDF), Journal of the International Phonetic Association, 43 (2): 231–241, doi:10.1017/S0025100313000145
Krech, Eva Maria; Stock, Eberhard; Hirschfeld, Ursula; Anders, Lutz-Christian (2009), Deutsches Aussprachewörterbuch, Berlin, New York: Walter de Gruyter, ISBN 978-3-11-018202-6
Peters, Jörg (2006), "The dialect of Hasselt", Journal of the International Phonetic Association, 36 (1): 117–124, doi:10.1017/S0025100306002428
Verhoeven, Jo (2005), "Belgian Standard Dutch", Journal of the International Phonetic Association, 35 (2): 243–247, doi:10.1017/S0025100305002173

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The letter R
General	Rhotic consonants (R-like sounds) Perception of English /r/ and /l/ by Japanese speakers Pronunciation of English /r/ Rhoticity in English R-colored vowel Rhotacism Guttural R Linking and intrusive R
Pronunciations	Voiceless alveolar trill [r̥] Voiced alveolar trill [r] Voiced alveolar or postalveolar approximant [ɹ] Voiceless alveolar tap [ɾ̥] Voiced alveolar tap [ɾ] Voiced alveolar lateral flap [ɺ] Voiced retroflex approximant [ɻ] Voiced retroflex flap [ɽ] Voiced retroflex trill [ɽr] Voiced velar approximant [ɰ] Voiced velar bunched approximant [ɹ̈] Voiceless velar fricative [x] Voiced velar fricative [ɣ] Voiceless uvular trill [ʀ̥] Voiced uvular trill [ʀ] Voiceless uvular fricative [χ] Voiced uvular fricative [ʁ] Voiced pharyngeal fricative [ʕ] Voiceless glottal fricative [h] Voiced glottal fricative [ɦ]
Variations	Ꝛꝛ (R rotunda) Ꞃꞃ (Insular) Ɽɽ (R with tail) Ɍɍ (R with stroke) Ʀʀ Ȑȑ Ŕŕ Ŗŗ Řř Ȓȓ R̃r̃ Ṙṙ Ṛṛ R̄r̄ Ṝṝ Ṟṟ Rd Rh Rl Rm Rn Rp Rr Rs Rt Rw Rz Rnd ᚱ (Raidô) ℝ (Real number) ® (Registered trademark symbol) Ⓡ (Enclosed R) ℞ (Medical prescription)