The voiced bilabial plosive or stop is a type of consonantal sound used in many spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is ⟨b⟩, and the equivalent X-SAMPA symbol is b. The voiced bilabial stop occurs in English, and it is the sound denoted by the letter ⟨b⟩ in obey[oʊˈbeɪ].
Features
Features of the voiced bilabial stop:
Its manner of articulation is occlusive, which means it is produced by obstructing airflow in the vocal tract. Since the consonant is also oral, with no nasal outlet, the airflow is blocked entirely, and the consonant is a plosive.
Its place of articulation is bilabial, which means it is articulated with both lips.
Its phonation is voiced, which means the vocal cords vibrate during the articulation.
It is an oral consonant, which means air is allowed to escape through the mouth only.
Because the sound is not produced with airflow over the tongue, the central–lateral dichotomy does not apply.
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.
Abrahams, Henrik (1949), Études phonétiques sur les tendances évolutives des occlusives germaniques, Aarhus University Press
Carbonell, Joan F.; Llisterri, Joaquim (1992), "Catalan", Journal of the International Phonetic Association, 22 (1–2): 53–56, doi:10.1017/S0025100300004618, S2CID 249411809
Cruz-Ferreira, Madalena (1995), "European Portuguese", Journal of the International Phonetic Association, 25 (2): 90–94, doi:10.1017/S0025100300005223, S2CID 249414876
Danyenko, Andrii; Vakulenko, Serhii (1995), Ukrainian, Lincom Europa, ISBN 9783929075083
Dum-Tragut, Jasmine (2009), Armenian: Modern Eastern Armenian, Amsterdam: John Benjamins Publishing Company
Fischer-Jørgensen, Eli (1952), "Om stemtheds assimilation", in Bach, H.; et al. (eds.), Festskrift til L. L. Hammerich, Copenhagen: G. E. C. Gad, pp. 116–129
Fougeron, Cecile; Smith, Caroline L (1993), "Illustrations of the IPA:French", Journal of the International Phonetic Association, 23 (2): 73–76, doi:10.1017/S0025100300004874, S2CID 249404451
Gilles, Peter; Trouvain, Jürgen (2013), "Luxembourgish", Journal of the International Phonetic Association, 43 (1): 67–74, doi:10.1017/S0025100312000278
Goblirsch, Kurt (2018), Gemination, Lenition, and Vowel Lengthening: On the History of Quantity in Germanic, Cambridge University Press, ISBN 978-1-107-03450-1
Gussenhoven, Carlos (1992), "Dutch", Journal of the International Phonetic Association, 22 (2): 45–47, doi:10.1017/S002510030000459X, S2CID 243772965
Jassem, Wiktor (2003), "Polish", Journal of the International Phonetic Association, 33 (1): 103–107, doi:10.1017/S0025100303001191
Landau, Ernestina; Lončarić, Mijo; Horga, Damir; Škarić, Ivo (1999), "Croatian", Handbook of the International Phonetic Association: A guide to the use of the International Phonetic Alphabet, Cambridge: Cambridge University Press, pp. 66–69, ISBN 978-0-521-65236-0
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
Okada, Hideo (1999), "Japanese", in International Phonetic Association (ed.), Handbook of the International Phonetic Association: A Guide to the Use of the International Phonetic Alphabet, Cambridge University Press, pp. 117–119, ISBN 978-0-52163751-0
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
Puggaard-Rode, Rasmus; Horslund, Camilla Søballe; Jørgensen, Henrik (2022), "The rarity of intervocalic voicing of stops in Danish spontaneous speech", Laboratory Phonology, 13 (1), doi:10.16995/labphon.6449, hdl:1887/3304670
Rogers, Derek; d'Arcangeli, Luciana (2004), "Italian", Journal of the International Phonetic Association, 34 (1): 117–121, doi:10.1017/S0025100304001628
Shosted, Ryan K.; Chikovani, Vakhtang (2006), "Standard Georgian" (PDF), Journal of the International Phonetic Association, 36 (2): 255–264, doi:10.1017/S0025100306002659
Thelwall, Robin (1990), "Illustrations of the IPA: Arabic", Journal of the International Phonetic Association, 20 (2): 37–41, doi:10.1017/S0025100300004266, S2CID 243640727