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Percussive Consonant
In phonetics, the airstream mechanism is the method by which airflow is created in the vocal tract. Along with phonation and articulation, it is one of three main components of speech production. The airstream mechanism is mandatory for most sound production and constitutes the first part of this process, which is called initiation. The organ generating the airstream is called the ''initiator'' and there are three initiators used phonemically in non-disordered human oral languages: * the diaphragm together with the ribs and lungs ''(pulmonic'' mechanisms), * the glottis ''(glottalic'' mechanisms), and * the tongue ''(lingual'' or ''"velaric"'' mechanisms). There are also methods of making sounds that do not require the glottis. These mechanisms are collectively called alaryngeal speech mechanisms (none of these speech mechanisms are used in non-disordered speech): * the cheeks ''(buccal'' mechanisms, notated in VoQS). See buccal speech. * after a laryngectomy, the esophagus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phonetics
Phonetics is a branch of linguistics that studies how humans produce and perceive sounds or, in the case of sign languages, the equivalent aspects of sign. Linguists who specialize in studying the physical properties of speech are phoneticians. The field of phonetics is traditionally divided into three sub-disciplines on questions involved such as how humans plan and execute movements to produce speech (articulatory phonetics), how various movements affect the properties of the resulting sound (acoustic phonetics) or how humans convert sound waves to linguistic information (auditory phonetics). Traditionally, the minimal linguistic unit of phonetics is the phone (phonetics), phone—a speech sound in a language which differs from the phonological unit of phoneme; the phoneme is an abstract categorization of phones and it is also defined as the smallest unit that discerns meaning between sounds in any given language. Phonetics deals with two aspects of human speech: production ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palate
The palate () is the roof of the mouth in humans and other mammals. It separates the oral cavity from the nasal cavity. A similar structure is found in crocodilians, but in most other tetrapods, the oral and nasal cavities are not truly separated. The palate is divided into two parts, the anterior, bony hard palate and the posterior, fleshy soft palate (or velum). Structure Innervation The maxillary nerve branch of the trigeminal nerve supplies sensory innervation to the palate. Development The hard palate forms before birth. Variation If the fusion is incomplete, a cleft palate results. Function in humans When functioning in conjunction with other parts of the mouth, the palate produces certain sounds, particularly velar, palatal, palatalized, postalveolar, alveolopalatal, and uvular consonants. History Etymology The English synonyms palate and palatum, and also the related adjective palatine (as in palatine bone), are all from the Latin ''palatum' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Egressive Sound
In human speech, egressive sounds are sounds in which the air stream is created by pushing air out through the mouth or nose. The three types of egressive sounds are pulmonic egressive (from the lungs), glottalic egressive (from the glottis), and lingual (velaric) egressive (from the tongue). The opposite of an egressive sound is an ingressive sound, in which the airstream flows inward through the mouth or nose. Pulmonic egressive Pulmonic egressive sounds are those in which the air stream is created by the lung The lungs are the primary Organ (biology), organs of the respiratory system in many animals, including humans. In mammals and most other tetrapods, two lungs are located near the Vertebral column, backbone on either side of the heart. Their ...s, ribs, and diaphragm. The majority of sounds in most languages, such as , are both pulmonic and egressive. Pulmonic egressive sounds are found in all spoken languages. Glottalic egressive Glottalic egressive so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ingressive Sound
In phonetics, ingressive sounds are sounds by which the airstream flows inward through the mouth or nose. The three types of ingressive sounds are lingual ingressive or velaric ingressive (from the tongue and the velum), glottalic ingressive (from the glottis), and pulmonic ingressive (from the lungs). The opposite of an ingressive sound is an egressive sound, by which the air stream is created by pushing air out through the mouth or nose. The majority of sounds in most languages, such as /b/, are both pulmonic and egressive. Lingual ingressive Lingual ingressive, or velaric ingressive, describes an airstream mechanism in which a sound is produced by closing the vocal tract at two places of articulation in the mouth. This rarefies the air in the enclosed space by lowering the tongue and then releasing both closures. Such sounds are called " clicks". Glottalic ingressive Glottal ingressive is the term generally applied to the implosive consonants, which actually use a mixed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandawe Language
Sandawe is a language spoken by about 60,000 Sandawe people in the Dodoma Region of Tanzania. Sandawe's use of click consonants, a rare feature shared with only two other languages of East Africa, Hadza language, Hadza and Dahalo language, Dahalo, had been the basis of its classification as a member of the defunct Khoisan languages, Khoisan family of Southern Africa since Albert Drexel in the 1920s. It has been suggested, however, that Sandawe may be related to the Khoe languages, Khoe family, regardless of the validity of Khoisan as a whole (Güldemann 2010). A discussion of the linguistic classification of Sandawe can be found in Sands (1998). Language use is vigorous among both adults and children, with people in some areas monolingual. Sandawe has two dialects, northwest and southeast. Differences include speaking speed, vowel dropping, some word taboo, and minor lexical and grammatical differences. Some Alagwa people, Alagwa have shifted to Sandawe, and are considered a Sanda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Percussive Click Release
The alveolar or postalveolar clicks are a family of click consonants found only in Africa and in the Damin ritual jargon of Australia. The tongue is more or less concave (depending on the language), and is pulled down rather than back as in the palatal clicks, making a hollower sound than those consonants. The symbol in the International Phonetic Alphabet that represents the place of articulation of these sounds is . The symbol is not an exclamation mark in origin, but rather a vertical bar with a subscript dot, the dot being the old diacritic for retroflex consonants. Prior to 1989, (stretched c) was the IPA letter for the alveolar clicks, and this is still preferred by some phoneticians. The tail of may be the tail of retroflex consonants in the IPA, and thus analogous to the underdot of . Either letter may be combined with a second letter to indicate the manner of articulation, though this is commonly omitted for tenuis clicks. Alveolar click consonants and their tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Percussive Consonant
In phonetics, the airstream mechanism is the method by which airflow is created in the vocal tract. Along with phonation and articulation, it is one of three main components of speech production. The airstream mechanism is mandatory for most sound production and constitutes the first part of this process, which is called initiation. The organ generating the airstream is called the ''initiator'' and there are three initiators used phonemically in non-disordered human oral languages: * the diaphragm together with the ribs and lungs ''(pulmonic'' mechanisms), * the glottis ''(glottalic'' mechanisms), and * the tongue ''(lingual'' or ''"velaric"'' mechanisms). There are also methods of making sounds that do not require the glottis. These mechanisms are collectively called alaryngeal speech mechanisms (none of these speech mechanisms are used in non-disordered speech): * the cheeks ''(buccal'' mechanisms, notated in VoQS). See buccal speech. * after a laryngectomy, the esophagus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Click Consonant
Click consonants, or clicks, are speech sounds that occur as consonants in many languages of Southern Africa and in three languages of East Africa. Examples familiar to English-speakers are the '' tut-tut'' (British spelling) or '' tsk! tsk!'' (American spelling) used to express disapproval or pity (IPA ), the '' tchick!'' used to spur on a horse (IPA ), and the '' clip-clop!'' sound children make with their tongue to imitate a horse trotting (IPA ). However, these paralinguistic sounds in English are not full click consonants, as they only involve the front of the tongue, without the release of the back of the tongue that is required for clicks to combine with vowels and form syllables. Anatomically, clicks are obstruents articulated with two closures (points of contact) in the mouth, one forward and one at the back. The enclosed pocket of air is rarefied by a sucking action of the tongue (in technical terminology, clicks have a lingual ingressive airstream mechanism). Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Implosive Consonant
Implosive consonants are a group of stop consonants (and possibly also some affricates) with a mixed glottalic ingressive and pulmonic egressive airstream mechanism. That is, the airstream is controlled by moving the glottis downward in addition to expelling air from the lungs. Therefore, unlike the purely glottalic ejective consonants, implosives can be modified by phonation. Contrastive implosives are found in approximately 13% of the world's languages. In the International Phonetic Alphabet, implosives are indicated by modifying the top of a letter (voiced stop) with a rightward-facing hook: . Articulation During the occlusion of the stop, pulling the glottis downward rarefies the air in the vocal tract. The stop is then released. In languages whose implosives are particularly salient, that may result in air rushing into the mouth before it flows out again with the next vowel. To take in air sharply in that way is to implode a sound. However, probably more typically, there ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ejective Consonant
In phonetics, ejective consonants are usually voiceless consonants that are pronounced with a Airstream mechanism#Glottalic initiation, glottalic egressive airstream. In the phonology of a particular language, ejectives may contrast with Aspirated consonant, aspirated, voiced and tenuis consonants. Some languages have glottalized sonorants with creaky voice that pattern with ejectives phonologically, and other languages have ejectives that pattern with Implosive consonant, implosives, which has led to phonologists positing a phonological class of glottalic consonants, which includes ejectives. Description In producing an ejective, the stylohyoid muscle and digastric muscle contract, causing the hyoid bone and the connected glottis to rise, and the forward articulation (at the velum in the case of ) is held, raising air pressure greatly in the mouth so when the oral articulators separate, there is a dramatic burst of air. The Adam's apple may be seen moving when the sound is prono ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glottalic Consonant
In phonetics, a glottalic consonant is a consonant produced with some important contribution (movement or closure) of the glottis. Glottalic sounds may involve motion of the larynx upward or downward, as the initiator of an egressive or ingressive glottalic airstream mechanism respectively. An egressive glottalic airstream produces ''ejective consonants'', while an ingressive glottalic airstream produces ''implosive consonants''. Ejectives are almost always voiceless stops (plosives) or affricates, while implosives are almost always voiced stops. However, when a sound is said to be '' glottalized'', this is often not what is meant. Rather, glottalization usually means that a normal pulmonic airstream is partially or completely interrupted by closure of the glottis. Sonorants (including vowels) may be glottalized in this fashion. There are three ways this can be represented in the International Phonetic Alphabet: (a) with an apostrophe; (b) with a superscript glottal stop; or ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diaphragm (anatomy)
The thoracic diaphragm, or simply the diaphragm (; ), is a sheet of internal skeletal muscle in humans and other mammals that extends across the bottom of the thoracic cavity. The diaphragm is the most important muscle of respiration, and separates the thoracic cavity, containing the heart and lungs, from the abdominal cavity: as the diaphragm contracts, the volume of the thoracic cavity increases, creating a negative pressure there, which draws air into the lungs. Its high oxygen consumption is noted by the many mitochondria and capillaries present; more than in any other skeletal muscle. The term ''diaphragm'' in anatomy, created by Gerard of Cremona, can refer to other flat structures such as the urogenital diaphragm or Pelvic floor, pelvic diaphragm, but "the diaphragm" generally refers to the thoracic diaphragm. In humans, the diaphragm is slightly asymmetric—its right half is higher up (superior) to the left half, since the large liver rests beneath the right half of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
