Kelabit language

Kelabit is one of the most remote languages of Borneo, on the Sarawak–North Kalimantan border.

It is spoken by one of the smallest ethnicities in Borneo, the Kelabit people.

All consonants but the aspirated voiced stops are lengthened after stressed /ə/.

Kelabit is notable for having "a typologically rare series of true voiced aspirates" (that is, not breathy voice/murmured consonants; for some speakers they are prevoiced) along with modally voiced and tenuis consonants but without an accompanying series of voiceless aspirates.

The aspirated voiced series only occurs intervocalically, and may have arisen from geminate consonants.