Sedang is an Austro-Asiatic language spoken in eastern Laos

Laos

Laos Lao: ສາທາລະນະລັດ ປະຊາທິປະໄຕ ປະຊາຊົນລາວ Sathalanalat Paxathipatai Paxaxon Lao, officially the Lao People's Democratic Republic, is a landlocked country in Southeast Asia, bordered by Burma and China to the northwest, Vietnam to the east, Cambodia to the south and Thailand to the west...

 and the Kon Tum Province

Kon Tum Province

Kon Tum province lies in the Central Highlands region of Vietnam and shares borders with Laos and Cambodia. It has an area of 9,934 square km and a population of approximately 330,000. The economy is primarily agricultural.-Name:...

 in south central Vietnam

Vietnam

Vietnam – sometimes spelled Viet Nam , officially the Socialist Republic of Vietnam – is the easternmost country on the Indochina Peninsula in Southeast Asia. It is bordered by China to the north, Laos to the northwest, Cambodia to the southwest, and the South China Sea –...

. The Sedang language is the most populous of the North Bahnaric language

Bahnaric languages

The Bahnaric languages are a group of about thirty Mon–Khmer languages spoken by about 700,000 people in Vietnam, Cambodia, and Laos. Paul Sidwell notes that Austroasiatic/Mon–Khmer languages are lexically more similar to Bahnaric and Katuic the closer they are geographically, independently of...

 group, which are known for their range of vowel

Vowel

In phonetics, a vowel is a sound in spoken language, such as English ah! or oh! , pronounced with an open vocal tract so that there is no build-up of air pressure at any point above the glottis. This contrasts with consonants, such as English sh! , where there is a constriction or closure at some...

 phonation

Phonation

Phonation has slightly different meanings depending on the subfield of phonetics. Among some phoneticians, phonation is the process by which the vocal folds produce certain sounds through quasi-periodic vibration. This is the definition used among those who study laryngeal anatomy and physiology...

s.

Consonants

		Bilabial	Labio- dental	Alveolar Alveolar consonant Alveolar consonants are articulated with the tongue against or close to the superior alveolar ridge, which is called that because it contains the alveoli of the superior teeth...	Alveolo- Palatal Alveolo-palatal consonant In phonetics, alveolo-palatal consonants are palatalized postalveolar sounds, usually fricatives and affricates, articulated with the blade of the tongue behind the alveolar ridge, and the body of the tongue raised toward the palate...	Velar Velar consonant Velars are consonants articulated with the back part of the tongue against the soft palate, the back part of the roof of the mouth, known also as the velum)....	Glottal Glottal consonant Glottal consonants, also called laryngeal consonants, are consonants articulated with the glottis. Many phoneticians consider them, or at least the so-called fricative, to be transitional states of the glottis without a point of articulation as other consonants have; in fact, some do not consider...
Stop Stop consonant In phonetics, a plosive, also known as an occlusive or an oral stop, is a stop consonant in which the vocal tract is blocked so that all airflow ceases. The occlusion may be done with the tongue , lips , and &...	unaspirated	p		t	tɕ	k	ʔ
	aspirated Aspiration (phonetics) In phonetics, aspiration is the strong burst of air that accompanies either the release or, in the case of preaspiration, the closure of some obstruents. To feel or see the difference between aspirated and unaspirated sounds, one can put a hand or a lit candle in front of one's mouth, and say pin ...	pʰ		tʰ	tɕʰ	kʰ
	prenasalized Prenasalized consonant Prenasalized consonants are phonetic sequences of a nasal and an obstruent that behave phonologically like single consonants. The reasons for considering these sequences to be single consonants is in their behavior, not in their actual composition...	mb		nd	ndʑ	ŋɡ
Fricative	voiced VOICED Virtual Organization for Innovative Conceptual Engineering Design is a virtual organization that promotes innovation in engineering design. This project is the collaborative work of researchers at five universities across the United States, and is funded by the National Science Foundation...		f	s		x	h
	voiceless Voiceless In linguistics, voicelessness is the property of sounds being pronounced without the larynx vibrating. Phonologically, this is a type of phonation, which contrasts with other states of the larynx, but some object that the word "phonation" implies voicing, and that voicelessness is the lack of...		v	z		ɣ
Nasal Nasal consonant A nasal consonant is a type of consonant produced with a lowered velum in the mouth, allowing air to escape freely through the nose. Examples of nasal consonants in English are and , in words such as nose and mouth.- Definition :...		m		n	ɲ	ŋ
Approximant	central Central consonant A central or medial consonant is a consonant sound that is produced when air flows across the center of the mouth over the tongue. The class contrasts with lateral consonants, in which air flows over the sides of the tongue rather than down its center....	w			j
	lateral Lateral consonant A lateral is an el-like consonant, in which airstream proceeds along the sides of the tongue, but is blocked by the tongue from going through the middle of the mouth....			l

Vowels

	Front Front vowel A front vowel is a type of vowel sound used in some spoken languages. The defining characteristic of a front vowel is that the tongue is positioned as far in front as possible in the mouth without creating a constriction that would be classified as a consonant. Front vowels are sometimes also...	Central Central vowel A central vowel is a type of vowel sound used in some spoken languages. The defining characteristic of a central vowel is that the tongue is positioned halfway between a front vowel and a back vowel...	Back Back vowel A back vowel is a type of vowel sound used in spoken languages. The defining characteristic of a back vowel is that the tongue is positioned as far back as possible in the mouth without creating a constriction that would be classified as a consonant. Back vowels are sometimes also called dark...
High Close vowel A close vowel is a type of vowel sound used in many spoken languages. The defining characteristic of a close vowel is that the tongue is positioned as close as possible to the roof of the mouth without creating a constriction that would be classified as a consonant.This term is prescribed by the...	i		u
Upper Mid Close-mid vowel A close-mid vowel is a type of vowel sound used in some spoken languages. The defining characteristic of a close-mid vowel is that the tongue is positioned two-thirds of the way from a close vowel to a mid vowel...	e		o
Lower Mid Open-mid vowel An open-mid vowel is a type of vowel sound used in some spoken languages. The defining characteristic of an open-mid vowel is that the tongue is positioned two-thirds of the way from an open vowel to a mid vowel...	ɛ		ɔ
Low Open vowel An open vowel is defined as a vowel sound in which the tongue is positioned as far as possible from the roof of the mouth. Open vowels are sometimes also called low vowels in reference to the low position of the tongue...		a

Sedang itself has 24 pure vowels: 7 vowel qualities, all of which may be plain (ex. [a]), nasalized

Nasal vowel

A nasal vowel is a vowel that is produced with a lowering of the velum so that air escapes both through nose as well as the mouth. By contrast, oral vowels are ordinary vowels without this nasalisation...

 ([ã]), and creaky

Creaky voice

In linguistics, creaky voice , is a special kind of phonation in which the arytenoid cartilages in the larynx are drawn together; as a result, the vocal folds are compressed rather tightly, becoming relatively slack and compact...

 ([a̰]), and three of which -- /i a o/ -- may be both nasal and creaky ([ã̰]). While it doesn't have the length distinctions of other North Bahnaric languages, it does have more diphthong

Diphthong

A diphthong , also known as a gliding vowel, refers to two adjacent vowel sounds occurring within the same syllable. Technically, a diphthong is a vowel with two different targets: That is, the tongue moves during the pronunciation of the vowel...

s, for somewhere between 33 and 55 vowel sounds altogether. Because of this Sedang is sometimes claimed to have the largest vowel inventory in the world. Note however that other Bahnaric languages have larger numbers of vowel qualities (Bahnar, for example, has 9) in addition to phonemic vowel length, so the record holder depends closely on how the languages are described and distinct vowels are defined.

External links

• Sedang page on ethnologue.com
• Paul Sidwell's Mon–Khmer language information at the Australian National University.
• Sound sample showing the distinction between clear and creaky vowels, from the link above.
• Sedang page on the Rosetta Project.
• Smith's dissertation