Voiced labiodental stop

Voiced labiodental stop
b̪
b͆
IPA number	102 408
Encoding
Entity (decimal)	b​̪
Unicode (hex)	U+0062 U+032A
X-SAMPA	b_d
Kirshenbaum	b[
Braille

The voiced labiodental stop is a consonant sound produced like a [b], but with the lower lip contacting the upper teeth, as in [v]. This can be represented in the IPA as ⟨b̪⟩. A separate symbol that is sometimes seen, especially in Bantu linguistics but not recognized by the IPA, is the db ligature ⟨ȸ⟩.

The voiced labiodental stop is not known to be phonemic in any language. However, it does occur allophonically:

In the Austronesian language Sika, this sound occurs as an allophone of the labiodental flap in careful pronunciation.

The XiNkuna dialect of Tsonga has affricates, [p̪͡f] (voiceless labiodental affricate) and [b̪͡v] (voiced labiodental affricate) (that is, [ȹ͡f] and [ȸ͡v]), which unlike the bilabial-labiodental affricate [p͡f] of German are purely labiodental.

Features of the "voiced labiodental stop":

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