Voiced bilabial flap
The voiced bilabial flap is an uncommon non-rhotic flap. It is usually, and perhaps always, an allophone of the labiodental flap, though it is the preferred allophone in a minority of languages such as Banda and some of its neighbors.
In Mono, the sound has been described as follows:
And, for allophony between the bilabial and dentolabial flap,
In the literature it has often been transcribed by a w modified by the extra-short diacritic,.
In 2005 the International Phonetic Association adopted the right hook v symbol to represent the labiodental flap. Since then, the received transcription of the bilabial flap involves employing the labiodental flap symbol modified by an advanced diacritic:. Since flaps are similar to brief stops, it could alternatively be transcribed as.Occurrence
