1.
Roundedness
–
In phonetics, vowel roundedness refers to the amount of rounding in the lips during the articulation of a vowel. It is labialization of a vowel, when a rounded vowel is pronounced, the lips form a circular opening, and unrounded vowels are pronounced with the lips relaxed. In most languages, front vowels tend to be unrounded, in the International Phonetic Alphabet vowel chart, rounded vowels are the ones that appear on the right in each pair of vowels. There are also diacritics, U+0339 ̹ COMBINING RIGHT HALF RING BELOW and U+031C ̜ COMBINING LEFT HALF RING BELOW, to greater and lesser degrees of rounding. The more and less rounded diacritics are also used with consonants to indicate degrees of labialization. There are two types of rounding, protrusion and compression. In protruded rounding, the corners of the mouth are drawn together, in compressed rounding, the corners of the mouth are drawn together, but the lips are also drawn together horizontally and do not protrude, with only their outer surface visible. That is, in protruded vowels the inner surfaces of the form the opening. Catford observes that back and central rounded vowels, such as German /o/ and /u/, are typically protruded, whereas front rounded vowels such as German /ø/ and /y/ are typically compressed. Back or central compressed vowels and front protruded vowels are uncommon, there are no dedicated IPA diacritics to represent the distinction, but the superscript IPA letter ⟨◌ᵝ⟩ can be used for compression and ⟨◌ʷ⟩, ⟨◌ᶣ⟩ or ⟨◌̫⟩ for protrusion. Compressed vowels may be pronounced either with the corners of the mouth drawn in, by some definitions rounded, or with the spread and, by the same definitions. The distinction may be transcribed ⟨ɨᵝ ɯᵝ⟩ and ⟨ʉᵝ uᵝ⟩, the distinction between protruded and compressed holds for the semivowels and as well as labialization. In Akan, for example, the is compressed, as are labio-palatalized consonants as in Twi Twi and adwuma work, whereas, in Japanese, the /w/ is compressed rather than protruded, paralleling the Japanese /u/. The distinction applies marginally to other consonants, some vowels transcribed with rounded IPA letters may not be rounded at all. An example is /ɒ/, which in English has very little if any rounding of the lips, the throaty sound of English /ɒ/ is instead accomplished with sulcalization, a furrowing of the back of the tongue also found in non-rhotic /ɜː/. It is possible to mimic the effect of rounded vowels by narrowing the cheeks, so-called cheek rounding. The technique is used by ventriloquists to mask the visible rounding of back vowels like and it is not clear if it is used by languages with rounded vowels that do not use visible rounding. Protruded rounding is the equivalent of consonantal labialization
2.
Tongue shape
–
In linguistics, tongue shape describes the shape that the tongue assumes when making a sound. Tongue shape is important for the sibilant sounds. Because these sounds have such a high prominence, small changes in tongue shape are easily audible. Usually, only one of these articulations can co-occur with a given sound. In addition, the quality of velarization and pharyngealization is very similar, as a result. The following varieties of tongue shapes are defined for sibilants, from sharpest and highest-pitched to dullest and lowest-pitched, Grooved and this groove channels a high-velocity jet of air into the teeth, which results in a high-pitched, piercing hissing sound. Because of the prominence of these sounds, they are the most common and they occur in English, where they are denoted with a letter s or z, as in soon or zone. Grooved palatalized, Combination of grooved shape with palatalization, alveolo-palatal, i. e. flat palatalized, with a convex, V-shaped tongue, and highly palatalized. Palato-alveolar, i. e. domed, with a domed tongue and these sounds occur in English, where they are denoted with letter combinations such as sh, ch, g, j or si, as in shin, chin, gin and vision. Retroflex, with a flat or concave tongue, and no palatalization and these sounds occur in a large number of varieties, some of which also go by other names. The subapical palatal or true retroflex sounds are the very dullest and lowest-pitched of all the sibilants, the latter three types of sounds are often known as hushing sounds because of their quality, as opposed to the hissing grooved sounds. Note that palatalization is an inherent part of the definition of the above varieties, and cannot normally be varied independently
3.
Articulatory phonetics
–
The field of articulatory phonetics is a subfield of phonetics. In studying articulation, phoneticians explain how humans produce speech sounds via the interaction of different physiological structures, generally, articulatory phonetics is concerned with the transformation of aerodynamic energy into acoustic energy. Aerodynamic energy refers to the airflow through the vocal tract and its potential form is air pressure, its kinetic form is the actual dynamic airflow. Acoustic energy is variation in the air pressure that can be represented as sound waves, the main air cavities present in the articulatory system are the supraglottal cavity and the subglottal cavity. They are so-named because the glottis, the space between the vocal folds internal to the larynx, separates the two cavities. The supraglottal cavity or the orinasal cavity is divided into an oral subcavity, the subglottal cavity consists of the trachea and the lungs. The atmosphere external to the stem may also be considered an air cavity whose potential connecting points with respect to the body are the nostrils. The term initiator refers to the fact that they are used to initiate a change in the volumes of air cavities, and, by Boyles Law, the term initiation refers to the change. Since changes in air pressures between connected cavities lead to airflow between the cavities, initiation is referred to as an airstream mechanism. The three pistons present in the system are the larynx, the tongue body, and the physiological structures used to manipulate lung volume. The lung pistons are used to initiate a pulmonic airstream, the larynx is used to initiate the glottalic airstream mechanism by changing the volume of the supraglottal and subglottal cavities via vertical movement of the larynx. Ejectives and implosives are made with this airstream mechanism, the tongue body creates a velaric airsteam by changing the pressure within the oral cavity, the tongue body changes the mouth subcavity. Click consonants use the velaric airstream mechanism, pistons are controlled by various muscles. Airflow occurs when an air valve is open and there is a difference between the connecting cavities. When an air valve is closed, there is no airflow, like the pistons, the air valves are also controlled by various muscles. To produce any kind of sound, there must be movement of air. To produce sounds that people today can interpret as words, the movement of air must pass through the chords, up through the throat and. Different sounds are formed by different positions of the mouth—or, as linguists call it, sounds of all languages fall under two categories, Consonants and Vowels
4.
Linguolabial consonant
–
Linguolabials or apicolabials are consonants articulated by placing the tongue tip or blade against the upper lip, which is drawn downward to meet the tongue. They represent one extreme of a coronal articulatory continuum which extends from linguolabial to subapical palatal places of articulation, cross-linguistically, linguolabial consonants are very rare, but they do not represent a particularly exotic combination of articulatory configurations, unlike click consonants or ejectives. They are found in a cluster of languages in Vanuatu, in the Kajoko dialect of Bijago in Guinea-Bissau, and in Umotína and they are also relatively common in disordered speech, and the diacritic is specifically provided for in the extensions to the IPA. Place of articulation List of phonetics topics Ladefoged, Peter, Maddieson, the Sounds of the Worlds Languages. In VICAL1, Oceanic Languages, Part II, Papers from the Fifth International Conference on Austronesian Linguistics, Auckland, New Zealand, January 1988, ed. by R. Harlow & R. Hooper, Auckland, Linguistic Society of New Zealand. Olson, Kenneth S. D. William Reiman, Fernando Sabio & Filipe Alberto da Silva, the voiced linguolabial plosive in Kajoko
5.
Retroflex consonant
–
A retroflex consonant is a coronal consonant where the tongue has a flat, concave, or even curled shape, and is articulated between the alveolar ridge and the hard palate. They are sometimes referred to as cerebral consonants, especially in Indology, other terms occasionally encountered are domal and cacuminal. The Latin-derived word retroflex means bent back, some consonants are pronounced with the tongue fully curled back so that articulation involves the underside of the tongue tip. These sounds are described as true retroflex consonants. Retroflex consonants, like other consonants, come in several varieties. The tongue may be flat or concave, or even with the tip curled back. The point of contact on the tongue may be with the tip, with the blade, the point of contact on the roof of the mouth may be with the alveolar ridge, the area behind the alveolar ridge, or the hard palate. Finally, both sibilant and nonsibilant consonants can have a retroflex articulation, the greatest variety of combinations occurs with sibilants, because for these, small changes in tongue shape and position cause significant changes in the resulting sound. Retroflex sounds in general have a duller, lower-pitched sound than other alveolar or postalveolar consonants, and especially the grooved alveolar sibilants. The farther back the point of contact with the roof of the mouth, the concave is the shape of the tongue. The main combinations normally observed are, Laminal post-alveolar, with a flat tongue and these occur, for example, in Polish cz, sz, ż, dż and Mandarin zh, ch, sh, r. Apical post-alveolar, with a somewhat concave tongue and these occur, for example, in Hindi and other Indo-Aryan languages. Subapical palatal, with a highly concave tongue and these occur particularly in the Dravidian languages. These are the dullest and lowest-pitched type, and when following a vowel often add strong r-coloring to the vowel and these are not a place of articulation, as the IPA chart implies, but a shape of the tongue analogous to laminal and apical. Apical alveolar, with a somewhat concave tongue and these occur, for example, in peninsular Spanish and Basque. These sounds dont quite fit on the front-to-back, laminal-to-subapical continuum, with a relatively dull, the subapical sounds are sometimes called true retroflex because of the curled-back shape of the tongue, while the other sounds sometimes go by other names. For example, Ladefoged and Maddieson prefer to call the laminal post-alveolar sounds flat post-alveolar, the retroflex approximant /ɻ/ is an allophone of the alveolar approximant /ɹ/ in many dialects of American English, particularly in the Midwestern United States. Polish and Russian possess retroflex sibilants, but no stops or liquids at this place of articulation, in African languages retroflex consonants are also very rare, reportedly occurring in a few Nilo-Saharan languages
6.
Place of articulation
–
Along with the manner of articulation and the phonation, it gives the consonant its distinctive sound. The terminology in this article has developed for precisely describing all the consonants in all the worlds spoken languages. No known language distinguishes all of the described here so less precision is needed to distinguish the sounds of a particular language. The human voice produces sounds in the manner, Air pressure from the lungs creates a steady flow of air through the trachea. The vocal folds in the larynx vibrate, creating fluctuations in air pressure, mouth and nose openings radiate the sound waves into the environment. The larynx or voice box is a framework of cartilage that serves to anchor the vocal folds. When the muscles of the vocal folds contract, the airflow from the lungs is impeded until the vocal folds are forced apart again by the air pressure from the lungs. The process continues in a cycle that is felt as a vibration. In singing, the frequency of the vocal folds determines the pitch of the sound produced. Voiced phonemes such as the vowels are, by definition. The lips of the mouth can be used in a way to create a similar sound. A rubber balloon, inflated but not tied off and stretched tightly across the neck produces a squeak or buzz, depending on the tension across the neck, similar actions with similar results occur when the vocal cords are contracted or relaxed across the larynx. k. a. The pharynx The epiglottis at the entrance to the windpipe, above the voice box The regions are not strictly separated. Likewise, the alveolar and post-alveolar regions merge into other, as do the hard and soft palate, the soft palate and the uvula. Terms like pre-velar, post-velar, and upper vs. lower pharyngeal may be used to more precisely where an articulation takes place. The articulatory gesture of the place of articulation involves the more mobile part of the vocal tract. That is unlike coronal gestures involving the front of the tongue, the epiglottis may be active, contacting the pharynx, or passive, being contacted by the aryepiglottal folds. Distinctions made in these areas are very difficult to observe and are the subject of ongoing investigation
7.
Alveolo-palatal consonant
–
In the official IPA chart, alveolo-palatals would appear between the retroflex and palatal consonants but for lack of space. These descriptions are equivalent, since the contact includes both the blade and body of the tongue. They are front enough that the fricatives and affricates are sibilants, the alveolo-palatal sibilants are often used in varieties of Chinese such as Mandarin, Hakka, and Wu, as well as other East Asian languages such as Japanese and Korean. Alveolo-palatal sibilants are also a feature of many Slavic languages, such as Polish, Russian, and Serbo-Croatian, the alveolo-palatal consonants included in the International Phonetic Alphabet are, The letters ⟨ɕ⟩ and ⟨ʑ⟩ are essentially equivalent to ⟨ ʃʲ⟩ and ⟨ʒʲ⟩. They are the sibilant homologues of the fricatives and. Symbols for alveolo-palatal stops, nasals and liquids are used in sinological circles. In standard IPA, they can be transcribed ⟨t̠ʲ d̠ʲ n̠ʲ l̠ʲ⟩ or ⟨c̟ ɟ̟ ɲ̟ ʎ̟⟩, an alternative transcription for the voiced alveolo-palatal stop and nasal is ⟨ɟ˖ ɲ˖⟩, but it is used only when ⟨ɟ̟ ɲ̟⟩ cannot be displayed properly. For example, the Polish nasal represented with the letter ń is a palatalized laminal alveolar nasal, the palatal consonants of Indigenous Australian languages are also often closer to alveolo-palatal in their articulation. The Sounds of the Worlds Languages
8.
Pharyngeal consonant
–
A pharyngeal consonant is a consonant that is articulated primarily in the pharynx. Stops and trills can be produced only at the epiglottis. When they are treated as distinct places of articulation, the term radical consonant may be used as a cover term, in many languages, pharyngeal consonants trigger advancement of neighboring vowels. Pharyngeals thus differ from uvulars, which nearly always trigger retraction, in addition, consonants and vowels may be secondarily pharyngealized. Also, strident vowels are defined by an accompanying epiglottal trill, pharyngeal/epiglottal consonants in the International Phonetic Alphabet, *A voiced epiglottal stop may not be possible. When an epiglottal stop becomes voiced intervocalically in Dahalo, for example, phonetically, however, voiceless vs voiced affricates or off-glides are attested. ** Although traditionally placed in the row of the IPA chart, is usually an approximant. Frication is difficult to produce or to distinguish because the voicing in the glottis, the IPA symbol is ambiguous, but no language distinguishes fricative and approximant at this place of articulation. For clarity, the diacritic may used to specify that the manner is approximant. The Hydaburg dialect of Haida has a trilled epiglottal and a trilled epiglottal affricate ~, because and occur at the same Pharyngeal/Epiglottal place of articulation, the logical phonetic distinction to make between them is in manner of articulation, trill versus fricative. Edmondson et al. distinguish several subtypes of pharyngeal consonant, pharyngeal or epiglottal stops and trills are usually produced by contracting the aryepiglottic folds of the larynx against the epiglottis. That articulation has been distinguished as aryepiglottal, in pharyngeal fricatives, the root of the tongue is retracted against the back wall of the pharynx. The IPA does not have diacritics to distinguish this articulation from standard aryepiglottals, Edmonson et al. use the ad hoc, somewhat misleading, transcriptions ⟨ʕ͡ʡ⟩, there are, however, several diacritics for subtypes of pharyngeal sound among the Voice Quality Symbols. Although upper-pharyngeal stops are not found in the languages, as far as is known. In Finnish, a weak pharyngeal fricative is the realization of /h/ after the vowels /ɑ/ or /æ/ in syllable-coda position, such as star, the approximant is more common, as it is the realization of /r/ in such European languages as Danish and Swabian German. According to the theory, Proto-Indo-European might have had pharyngeal consonants. The fricatives and trills are frequently conflated with pharyngeal fricatives in literature and that was the case for Dahalo and Northern Haida, for example, and it is likely to be true for many other languages. The distinction between these sounds was recognized by IPA only in 1989, and it was little investigated until the 1990s, pharyngealization Strident vowel Ayin Heth Guttural Ladefoged, Peter, Maddieson, Ian
9.
Voiceless bilabial fricative
–
The voiceless bilabial fricative is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is ⟨ɸ⟩, for English-speakers, it is easiest to think of the sound as an f-sound made only with the lips, instead of the upper teeth and lower lip, or a blowing sound. Its place of articulation is bilabial, which means it is articulated with both lips and its phonation is voiceless, which means it is produced without vibrations of the vocal cords. In some languages the vocal cords are separated, so it is always voiceless, in others the cords are lax. It is a consonant, which means air is allowed to escape through the mouth only. Because the sound is not produced with airflow over the tongue, the airstream mechanism is pulmonic, which means it is articulated by pushing air solely with the lungs and diaphragm, as in most sounds
