Kayan language (Borneo)

Kayan is a dialect cluster spoken by the Kayan people of Borneo. It is a cluster of closely related dialects with limited mutual intelligibility, and is itself part of the Kayan-Murik group of Austronesian languages.
Baram Kayan is a local trade language. Bahau is part of the dialect cluster, but is not ethnically Kayan.

Internal classification

v4.8 classifies the Kayan dialect cluster as follows:

Phonology

The following is based on the Baram dialect:

Consonants

can be heard as either a tap or a trill in free variation.
can be heard as when in free fluctuation with in word-medial position.
can be realized as more fronted when preceding high vocoids.
may also be heard as a palatalized stop in free fluctuation.
may also be heard as in free variation, and may also fluctuate to a stop sound.

Vowels

Length is said to occur in free variation or in word-final position.
can be heard as in initial or medial positions, or in free variation with.
can also be heard as in word-medial position.
can be heard as before a medial or final or.
can be heard as when before a or, or in fluctuation with.