Creaky voice

Creaky voice

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In linguistics
Linguistics
Linguistics is the scientific study of human language. Linguistics can be broadly broken into three categories or subfields of study: language form, language meaning, and language in context....

, creaky voice (sometimes called laryngealisation, pulse phonation, vocal fry, or glottal fry), is a special kind of 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...

 in which the arytenoid cartilage
Arytenoid cartilage
The arytenoid cartilages are a pair of small three-sided pyramids which form part of the larynx, to which the vocal folds are attached...

s in the larynx
Larynx
The larynx , commonly called the voice box, is an organ in the neck of amphibians, reptiles and mammals involved in breathing, sound production, and protecting the trachea against food aspiration. It manipulates pitch and volume...

 are drawn together; as a result, the vocal folds
Vocal folds
The vocal folds, also known commonly as vocal cords, are composed of twin infoldings of mucous membrane stretched horizontally across the larynx...

 are compressed rather tightly, becoming relatively slack and compact. They vibrate irregularly at 20–50 pulses per second, about two octaves below the frequency of normal voicing, and the airflow through the glottis
Glottis
The glottis is defined as the combination of the vocal folds and the space in between the folds .-Function:...

 is very slow. However, although creaky voice may occur with very low pitch, as at the end of a long intonation unit, it can occur with any pitch.

A slight degree of laryngealisation, occurring in some Korean
Korean language
Korean is the official language of the country Korea, in both South and North. It is also one of the two official languages in the Yanbian Korean Autonomous Prefecture in People's Republic of China. There are about 78 million Korean speakers worldwide. In the 15th century, a national writing...

 consonants for example, is called "stiff voice
Stiff voice
The term stiff voice describes the pronunciation of consonants or vowels with a glottal opening narrower, and the vocal cords stiffer, than what occurs in modal voice. Although there is no specific IPA diacritic for stiff voice, the voicing diacritic may be used in conjunction with the symbol for...

". The Danish
Danish language
Danish is a North Germanic language spoken by around six million people, principally in the country of Denmark. It is also spoken by 50,000 Germans of Danish ethnicity in the northern parts of Schleswig-Holstein, Germany, where it holds the status of minority language...

 prosodic
Prosody (linguistics)
In linguistics, prosody is the rhythm, stress, and intonation of speech. Prosody may reflect various features of the speaker or the utterance: the emotional state of the speaker; the form of the utterance ; the presence of irony or sarcasm; emphasis, contrast, and focus; or other elements of...

 feature stød
Stød
Stød is a suprasegmental unit of Danish phonology, which in its most common form is a kind of creaky voice , but may also be realized as a glottal stop, above all in emphatic pronunciation...

is an example of a form of laryngealisation that has a phonemic
Phoneme
In a language or dialect, a phoneme is the smallest segmental unit of sound employed to form meaningful contrasts between utterances....

 function. Creaky voice is also prevalent in English as spoken in the Pacific Northwest
Pacific Northwest
The Pacific Northwest is a region in northwestern North America, bounded by the Pacific Ocean to the west and, loosely, by the Rocky Mountains on the east. Definitions of the region vary and there is no commonly agreed upon boundary, even among Pacific Northwesterners. A common concept of the...

 of the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

.

In the International Phonetic Alphabet
International Phonetic Alphabet
The International Phonetic Alphabet "The acronym 'IPA' strictly refers [...] to the 'International Phonetic Association'. But it is now such a common practice to use the acronym also to refer to the alphabet itself that resistance seems pedantic...

, creaky voice of a phone is represented by a diacritic
Diacritic
A diacritic is a glyph added to a letter, or basic glyph. The term derives from the Greek διακριτικός . Diacritic is both an adjective and a noun, whereas diacritical is only an adjective. Some diacritical marks, such as the acute and grave are often called accents...

al tilde
Tilde
The tilde is a grapheme with several uses. The name of the character comes from Portuguese and Spanish, from the Latin titulus meaning "title" or "superscription", though the term "tilde" has evolved and now has a different meaning in linguistics....

0330 for example [d̰].