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123-590: John Christopher Wells (born 11 March 1939) is a British phonetician and Esperantist . Wells is a professor emeritus at University College London , where until his retirement in 2006 he held the departmental chair in phonetics. He is known for his work on the Esperanto language and his invention of the standard lexical sets and the X-SAMPA phonetic script system. Wells earned his bachelor's degree at Trinity College, Cambridge and his master's degree and his PhD at

246-670: A delegito , a 'delegate', who serves as a local contact person for Esperanto and UEA members in their town. A ĉefdelegito (chief delegate) is someone installed also by the UEA headquarters, but with the task to collect and remit membership fees in a given country. TEJO , the World Esperanto Youth Organization, is the youth section of the UEA. Similar to the World Congress, TEJO organizes an International Youth Congress of Esperanto ( Internacia Junulara Kongreso ) each year in

369-446: A board with the name Estraro was established.) Hodler was still the owner and publisher of his magazine Esperanto , published every second week. From the beginning, UEA had a Yearbook — Jarlibro — with basic information about the association and with the addresses of the delegates. Esperanto speakers are divided by different subjects they are interested in. In those early years, some specialist organizations developed — for example,

492-591: A catastrophic financial situation and decided in early 1936 to depart Geneva for London. In London, the capable activist Cecil C. Goldsmith wanted to become the new director (secretary), and for certain currency reasons UEA could exist significantly more cheaply in Britain than in Switzerland. A hastily organized and secret campaign, led by former president Stettler, made it impossible for the Bastien-led board to legally move

615-470: A complete reform of the movement. In 1933, at the Cologne congress, UEA and the national organizations made UEA the common or umbrella organization of the international Esperanto movement. In 1934 the UEA members accepted new UEA statutes. The 'new UEA', as it was called, was (and still is) a federation of national associations but also of individual members directly administered by UEA. The highest organ of UEA

738-432: A constriction, and include dental, alveolar, and post-alveolar locations. Tongue postures using the tip of the tongue can be apical if using the top of the tongue tip, laminal if made with the blade of the tongue, or sub-apical if the tongue tip is curled back and the bottom of the tongue is used. Coronals are unique as a group in that every manner of articulation is attested. Australian languages are well known for

861-425: A diacritic implicitly placing them in the coronal category. They exist in a number of languages indigenous to Vanuatu such as Tangoa . Labiodental consonants are made by the lower lip rising to the upper teeth. Labiodental consonants are most often fricatives while labiodental nasals are also typologically common. There is debate as to whether true labiodental plosives occur in any natural language, though

984-510: A different location. The IJK is a week-long event of concerts, presentations, excursions attended by hundreds of young people from all over the world. The youth section has a Komitato and national and specialist affiliated organizations, just as the UEA itself. A TEJO volunteer works at the Rotterdam headquarters. The first national Esperanto organization was founded in 1898 in France, originally as

1107-564: A given locality, e.g. a town, were supposed to have UEA member conventions and elect a delegito (plural delegitoj ), a delegate. The delegate was tasked with collecting membership fees and sending them to the Geneva headquarters, and was expected to represent the other local members on the international level. The totality of delegates held referendums, and they elected the Komitato. The Komitato board initially had eight (since 1910: ten) members, with

1230-480: A given point in time a model of the vowel pronounced reverses the filtering of the mouth producing the spectrum of the glottis. A computational model of the unfiltered glottal signal is then fitted to the inverse filtered acoustic signal to determine the characteristics of the glottis. Visual analysis is also available using specialized medical equipment such as ultrasound and endoscopy. Legend: unrounded  •  rounded Vowels are broadly categorized by

1353-437: A glottal stop. If the vocal folds are held slightly further apart than in modal voicing, they produce phonation types like breathy voice (or murmur) and whispery voice. The tension across the vocal ligaments ( vocal cords ) is less than in modal voicing allowing for air to flow more freely. Both breathy voice and whispery voice exist on a continuum loosely characterized as going from the more periodic waveform of breathy voice to

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1476-661: A long vowel in book, look , etc.). His book also included transcriptions of foreign words in their native languages and local pronunciations of place names in the English-speaking world. Wells was the president of the World Esperanto Association (UEA) from 1989 to 1995. He has also been the president of the Esperanto Academy (2007–2013) and the Esperanto Association of Britain (2011–2013). Wells

1599-403: A number of languages are reported to have labiodental plosives including Zulu , Tonga , and Shubi . Coronal consonants are made with the tip or blade of the tongue and, because of the agility of the front of the tongue, represent a variety not only in place but in the posture of the tongue. The coronal places of articulation represent the areas of the mouth where the tongue contacts or makes

1722-587: A potential international association. In 1903 the second one followed, in Switzerland. Within a couple of years, many of the still existing national organizations came into existence. Since 1933-1934 they have sent representatives to the UEA Komitato , making it a federation of national organizations. In Esperanto these were initially termed as Naciaj Societoj (national societies), but they have subsequently become known as Landaj Asocioj (country associations). When UEA accepted national organizations in 1933-1934 for

1845-401: A president and a vice-president. One of the board members served as director; from 1908 to 1920 this was Hector Hodler. The director installed delegates in towns with fewer than 20 members. These were 94 percent of the delegates, so the UEA was not so much a democracy but a circular, self-renewing system of cooptation . (Since 1920, the Komitato was enlarged, becoming a kind of parliament, and

1968-532: A pronunciation dictionary published in the United Kingdom since 1977, when Alfred C. Gimson published his last (the 14th) edition of English Pronouncing Dictionary . The book by Wells had a much greater scope, including American pronunciations as well as RP pronunciations and including non-RP pronunciations widespread in Great Britain (such as use of a short vowel in the words bath, chance, last , etc. and of

2091-419: A segment is voiced or not, the simplest being to feel the larynx during speech and note when vibrations are felt. More precise measurements can be obtained through acoustic analysis of a spectrogram or spectral slice. In a spectrographic analysis, voiced segments show a voicing bar, a region of high acoustic energy, in the low frequencies of voiced segments. In examining a spectral splice, the acoustic spectrum at

2214-471: A sound wave. The modification is done by the articulators, with different places and manners of articulation producing different acoustic results. For example, the words tack and sack both begin with alveolar sounds in English, but differ in how far the tongue is from the alveolar ridge. This difference has large effects on the air stream and thus the sound that is produced. Similarly, the direction and source of

2337-441: A three-way backness distinction include Nimboran and Norwegian . In most languages, the lips during vowel production can be classified as either rounded or unrounded (spread), although other types of lip positions, such as compression and protrusion, have been described. Lip position is correlated with height and backness: front and low vowels tend to be unrounded whereas back and high vowels are usually rounded. Paired vowels on

2460-424: A unitary, truly international association, and UEA members should found separate organizations on national and local levels. The national (and local) associations initially saw the UEA not as a supporting resource but as a threat, as undesirable competition. They were afraid of a division in the movement between the traditional groups on the one hand and the UEA members on the other. Also, propaganda and lessons were

2583-433: A velar stop. Because both velars and vowels are made using the tongue body, they are highly affected by coarticulation with vowels and can be produced as far forward as the hard palate or as far back as the uvula. These variations are typically divided into front, central, and back velars in parallel with the vowel space. They can be hard to distinguish phonetically from palatal consonants, though are produced slightly behind

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2706-557: A very critical review of the Linguistic Atlas of England , which was the principal output of the Survey of English Dialects . He argued that the methodology was outdated, that the sample was not representative of the population and that it was not possible to "discover with any certainty the synchronic vowel-system in each of the localities investigated". KM Petyt noted in his review of Accents of English that Wells had made abundant use of

2829-468: A voicing distinction for some consonants, but all languages use voicing to some degree. For example, no language is known to have a phonemic voicing contrast for vowels with all known vowels canonically voiced. Other positions of the glottis, such as breathy and creaky voice, are used in a number of languages, like Jalapa Mazatec , to contrast phonemes while in other languages, like English, they exist allophonically. There are several ways to determine if

2952-744: Is Prof. Duncan Charters . The magazine Esperanto is the main publication to inform UEA members about everything happening in the Esperanto community. The UEA was founded in 1908 by the Swiss journalist Hector Hodler and others and is now headquartered in Rotterdam , Netherlands. The organization has official relations with the United Nations and has an office at the United Nations headquarters in New York City . According to its 1980 statutes (Statuto de UEA),

3075-489: Is a dental stop, and the stop will usually be apical if it is an alveolar stop, though for example Temne and Bulgarian do not follow this pattern. If a language has both an apical and laminal stop, then the laminal stop is more likely to be affricated like in Isoko , though Dahalo show the opposite pattern with alveolar stops being more affricated. Retroflex consonants have several different definitions depending on whether

3198-415: Is a gesture that represents a group of "functionally equivalent articulatory movement patterns that are actively controlled with reference to a given speech-relevant goal (e.g., a bilabial closure)." These groups represent coordinative structures or "synergies" which view movements not as individual muscle movements but as task-dependent groupings of muscles which work together as a single unit. This reduces

3321-566: Is a set of words (named with a designated element) that share a special characteristic. For example, words belonging to lexical set BATH have the /æ/ phoneme in the United States and /ɑː/ phoneme in Received Pronunciation . In addition, Wells is acknowledged as the source of the term rhotic to describe accents where the letter r in spelling is always pronounced phonetically. Before writing Accents of English , Wells had written

3444-609: Is controlled by the muscles of the larynx, and languages make use of more acoustic detail than binary voicing. During phonation, the vocal folds vibrate at a certain rate. This vibration results in a periodic acoustic waveform comprising a fundamental frequency and its harmonics. The fundamental frequency of the acoustic wave can be controlled by adjusting the muscles of the larynx, and listeners perceive this fundamental frequency as pitch. Languages use pitch manipulation to convey lexical information in tonal languages, and many languages use pitch to mark prosodic or pragmatic information. For

3567-505: Is equal to about atmospheric pressure . However, because articulations—especially consonants—represent constrictions of the airflow, the pressure in the cavity behind those constrictions can increase resulting in a higher supraglottal pressure. According to the lexical access model two different stages of cognition are employed; thus, this concept is known as the two-stage theory of lexical access. The first stage, lexical selection, provides information about lexical items required to construct

3690-501: Is the result of a decades-long process of several attempts to give the Esperanto movement a sound foundation. The first Esperanto associations were local clubs, of which the one in Nuremberg, Germany , is considered the first (1888). From 1898, national Esperanto associations were found in several countries, with the French one being the first. In 1903 followed the Swiss association; then in 1904

3813-633: The COVID-19 pandemic . Congresses are scheduled for Arusha , Tanzania in 2024 and Brno , Czech Republic in 2025. Twice a year, in spring and autumn, UEA headquarters in Rotterdam holds an Open Day. In addition to the UN and UNESCO, UEA also has consultative relations with UNICEF and the Council of Europe , and a general working relationship with the Organization of American States . It works in an official capacity with

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3936-585: The Hector Hodler Library . The organisation has a network of local representatives from around the world, the Delegita Reto , who are available to provide information about their geographical area or professional field. The yearly World Esperanto Congress ( Universala Kongreso de Esperanto ), which attracts 1,500–3,000 people to a different city each year, is held under the direction of UEA. The first congress took place in 1905, and since 1933–1934

4059-683: The IPA Certificate of Proficiency in the Phonetics of English is awarded. From 2003 to 2007 he was president of the International Phonetic Association . He is also a member of the six-man Academic Advisory Committee at Linguaphone . Wells has long been a pioneer of new technology. He is the inventor of the X-SAMPA ASCII phonetic alphabet for use in digital computers that could not handle IPA symbols. He learned HTML during

4182-613: The International Organization for Standardization (ISO) as an A-liaison to ISO/TC37 . UEA is active in public information in the European Union and, as necessary, at other interstate and international organizations and conferences. The organisation is a member of the European Language Council , a common forum of universities and language associations for the awareness of languages and cultures inside and outside

4305-497: The Universala Medicina Esperanto-Asocio of 1908. Hodler tried to give those 'specialists' a home in the UEA. Instead of founding specialized associations of their own, with separate bulletins and conventions, he wanted them to be UEA members and have 'fakoj' (compartments). He also thought of partner organizations — for example, hotels which would give a discount to UEA members in exchange for an advertisement in

4428-722: The University of London . Wells is known for his book and cassette Accents of English , the book and CD The Sounds of the IPA , Lingvistikaj Aspektoj de Esperanto , and the Longman Pronunciation Dictionary . He is the author of the most widely used English-Esperanto dictionary. Until his retirement, Wells directed a two-week summer course in phonetics for University College London , focusing on practical and theoretical phonetics, as well as aspects of teaching phonetics. The course ends with written and oral examinations, for which

4551-502: The hero of Montevideo . After having served for more than 30 years on the board of UEA, Lapenna left the association in 1974 and created a rival organization ( Neŭtrala Esperanto-Movado ). During the Cold War , UEA had to deal with the difficulty of having national organizations and individual members in communist countries. Additionally, the work of Esperanto organizations in Western countries

4674-500: The vocal folds , are notably common in the world's languages. While many languages use them to demarcate phrase boundaries, some languages like Arabic and Huatla Mazatec have them as contrastive phonemes. Additionally, glottal stops can be realized as laryngealization of the following vowel in this language. Glottal stops, especially between vowels, do usually not form a complete closure. True glottal stops normally occur only when they are geminated . The larynx, commonly known as

4797-404: The "voice box", is a cartilaginous structure in the trachea responsible for phonation . The vocal folds (chords) are held together so that they vibrate, or held apart so that they do not. The positions of the vocal folds are achieved by movement of the arytenoid cartilages . The intrinsic laryngeal muscles are responsible for moving the arytenoid cartilages as well as modulating the tension of

4920-424: The 1950s reshaped the association significantly. The office moved from Heronsgate to Rotterdam, the board since then has a general secretary , the Esperanto editor is a paid position. After 1956, the association in 1980 was again (and since then for the last time) given new statutes. In the decades after the war, the staff grew. Before the war, it was common to have a director with only one or two assistants. After

5043-597: The British, in 1906 the German and Swedish, etc. The founder of Esperanto, L. L. Zamenhof , wished for an international association to come into existence, but the first world congress of 1905 produced only a general manifesto about the essence and neutrality of the movement. The organizing team passed the torch to organizers of a next congress the year after, which eventually created a Konstanta Kongresa Komitato (Permanent Congress Committee). It consisted of two members representing

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5166-698: The European Union. In May 2011, UEA officially became an Associate Member of the International Information Centre for Terminology (Infoterm) . The Grabowski Prize is a prize awarded to young authors writing in Esperanto by the Antoni Grabowski Foundation , part of the Universal Esperanto Association (UEA). It is named after Antoni Grabowski, who has been called "the father of Esperanto poetry". The awards for

5289-590: The Geneva world congress, Zamenhof created a Lingva Komitato (Language Committee), the basis of the later Akademio de Esperanto . It consisted of some eminent speakers from several countries and was intended to safeguard the evolution of the Esperanto language; members were elected for a nine-year term. In 1908, a group of young Esperanto speakers founded an international association based on individual, direct membership: Universala Esperanto-Asocio , based in Geneva. According to Hector Hodler and his followers, an international cause such as Esperanto must be supported by

5412-614: The IPA chart have the spread vowel on the left and the rounded vowel on the right. World Esperanto Association The Universal Esperanto Association ( Esperanto : Universala Esperanto-Asocio , UEA ), also known as the World Esperanto Association , is the largest international organization of Esperanto speakers, with 5,501 individual members in 121 countries and 9,215 through national associations (in 2015) in 214 countries. In addition to individual members, 70 national Esperanto organizations are affiliated with UEA. Its current president

5535-500: The UEA delegitoj ); an Internacia Unuiĝo de Esperantistaj Societoj (International Union of Esperanto associations, 1913-1914) was a second attempt. This evolutionary thread ceased in 1914 with the breakout of World War I , which forced the movement as a whole to pause many of its activities, and the Congresses planned for 1916, 1917, 1918 and 1919 were cancelled. The original UEA was purely based on individual membership. The members in

5658-457: The UEA Yearbook. Hodler projected an organization fit to contain tens or hundreds of thousands of members, the so-called esperantianoj (UEA members, in opposition to the simple esperantistoj , Esperanto speakers). In fact, UEA never exceeded a membership of 10,000. The association adopted several new statutes until 1920. In 1920, the Esperanto movement gathered again for the first time since

5781-505: The UEA has had responsibility for the annual event. Since 2009, World Congresses have been held in Białystok, Poland , the hometown of L. L. Zamenhof , the creator and guiding spirit of Esperanto , as well as in Havana , Copenhagen , Hanoi , Reykjavík , Buenos Aires , Lille , Nitra , Seoul , Lisbon , Lahti , Montreal and Turin . In 2020 and 2021 the Congresses were held virtually due to

5904-502: The Universal Esperanto Association has two kinds of members: The UEA's supervisory board, the Komitato , has members ( komitatanoj ) elected in three different ways: The Komitato serves as a sort of parliament and elects a board, the Estraro . The Estraro installs a general director and sometimes a director as well. The general director and staff work at the UEA headquarters, Oficejo de UEA , in Rotterdam. Individual members can become

6027-510: The accent of the area and how it contrasted with the Received Pronunciation that was spoken in his home in his book Accents of English; vol. 2: the British Isles . He attended St John's School, Leatherhead , studied languages and taught himself Gregg shorthand . Having learned Welsh , he was interviewed in Welsh on radio; according to his CV , he has a reasonable knowledge of ten languages. He

6150-458: The acoustic signal. Some models of speech production take this as the basis for modeling articulation in a coordinate system that may be internal to the body (intrinsic) or external (extrinsic). Intrinsic coordinate systems model the movement of articulators as positions and angles of joints in the body. Intrinsic coordinate models of the jaw often use two to three degrees of freedom representing translation and rotation. These face issues with modeling

6273-505: The airstream can affect the sound. The most common airstream mechanism is pulmonic (using the lungs) but the glottis and tongue can also be used to produce airstreams. Language perception is the process by which a linguistic signal is decoded and understood by a listener. To perceive speech, the continuous acoustic signal must be converted into discrete linguistic units such as phonemes , morphemes and words . To correctly identify and categorize sounds, listeners prioritize certain aspects of

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6396-480: The area of prototypical palatal consonants. Uvular consonants are made by the tongue body contacting or approaching the uvula. They are rare, occurring in an estimated 19 percent of languages, and large regions of the Americas and Africa have no languages with uvular consonants. In languages with uvular consonants, stops are most frequent followed by continuants (including nasals). Consonants made by constrictions of

6519-451: The area of the mouth in which they are produced, but because they are produced without a constriction in the vocal tract their precise description relies on measuring acoustic correlates of tongue position. The location of the tongue during vowel production changes the frequencies at which the cavity resonates, and it is these resonances—known as formants —which are measured and used to characterize vowels. Vowel height traditionally refers to

6642-499: The cavity between the glottis and epiglottis being too small to permit voicing. Glottal consonants are those produced using the vocal folds in the larynx. Because the vocal folds are the source of phonation and below the oro-nasal vocal tract, a number of glottal consonants are impossible such as a voiced glottal stop. Three glottal consonants are possible, a voiceless glottal stop and two glottal fricatives, and all are attested in natural languages. Glottal stops , produced by closing

6765-756: The core services of the association, such as the Yearbook, were still reserved to individual members. UEA since then is the legal heir of the former Helsinki organizations, such as the International Central Committee. The association since then also organizes the annual World Congress of Esperanto . Although in 1933-1934 it first seemed that the transition could happen in harmony, at the 1934 congress in Stockholm some UEA functionaries were not re-elected. In anger, UEA president Eduard Stettler and others resigned. The new board with president Louis Bastien faced

6888-514: The data from the Survey of English Dialects in some sections of the work whilst criticising the survey in other parts of the same work. Wells was part of the committee of the Atlas Linguarum Europae for England and Wales, but never played a large role. Wells was appointed by Longman to write its pronunciation dictionary, the first edition of which was published in 1990. There had not been

7011-451: The degrees of freedom in articulation planning, a problem especially in intrinsic coordinate models, which allows for any movement that achieves the speech goal, rather than encoding the particular movements in the abstract representation. Coarticulation is well described by gestural models as the articulations at faster speech rates can be explained as composites of the independent gestures at slower speech rates. Speech sounds are created by

7134-401: The delegates. Since 1947, one speaks of the komitatanoj A (from the national organizations), the komitatanoj B (from the delegates, later members) and the komitatanoj C (those indirectly elected). As the representatives of the national organizations by far outnumbered the others, it is right to call UEA in essence a federation. But all officeholders of UEA had to be individual members, and

7257-630: The development of an influential phonetic alphabet based on articulatory positions by Alexander Melville Bell . Known as visible speech , it gained prominence as a tool in the oral education of deaf children . Before the widespread availability of audio recording equipment, phoneticians relied heavily on a tradition of practical phonetics to ensure that transcriptions and findings were able to be consistent across phoneticians. This training involved both ear training—the recognition of speech sounds—as well as production training—the ability to produce sounds. Phoneticians were expected to learn to recognize by ear

7380-400: The ears). Sign languages, such as Australian Sign Language (Auslan) and American Sign Language (ASL), have a manual-visual modality, producing speech manually (using the hands) and perceiving speech visually. ASL and some other sign languages have in addition a manual-manual dialect for use in tactile signing by deafblind speakers where signs are produced with the hands and perceived with

7503-427: The expression (of consonants), Balancing (Saman) and connection (of sounds), So much about the study of Shiksha. || 1 | Taittiriya Upanishad 1.2, Shikshavalli, translated by Paul Deussen . Advancements in phonetics after Pāṇini and his contemporaries were limited until the modern era, save some limited investigations by Greek and Roman grammarians. In the millennia between Indic grammarians and modern phonetics,

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7626-486: The first three winners are $ 700, $ 300 and $ 150 respectively. Ulrich Becker, a publisher of literature in and about Esperanto and of interlinguistic literature in general, was awarded the Grabowski Prize ( Premio Grabowski ) in 2005 for his achievements in publishing in Esperanto. Among other works, he is the publisher of the thrice-yearly periodical of Esperanto belles-lettres , Beletra Almanako . The modern UEA

7749-542: The first time, it required them to Especially the last prerequisite caused serious problems, e.g. to the German national association submitting to Nazi Party rule. Decades later, in 1959, the Cuban association was refused because its statutes respected the leading role of the Communist Party of Cuba . In 1980, the UEA statutes were altered to specify that while a national organization need not be neutral itself, it must respect

7872-538: The focus shifted from the difference between spoken and written language, which was the driving force behind Pāṇini's account, and began to focus on the physical properties of speech alone. Sustained interest in phonetics began again around 1800 CE with the term "phonetics" being first used in the present sense in 1841. With new developments in medicine and the development of audio and visual recording devices, phonetic insights were able to use and review new and more detailed data. This early period of modern phonetics included

7995-424: The force from air moving through the aperture (opening between the lips) may cause the lips to separate faster than they can come together. Unlike most other articulations, both articulators are made from soft tissue, and so bilabial stops are more likely to be produced with incomplete closures than articulations involving hard surfaces like the teeth or palate. Bilabial stops are also unusual in that an articulator in

8118-434: The functional-level representation. These items are retrieved according to their specific semantic and syntactic properties, but phonological forms are not yet made available at this stage. The second stage, retrieval of wordforms, provides information required for building the positional level representation. When producing speech, the articulators move through and contact particular locations in space resulting in changes to

8241-450: The glottis required for voicing is estimated at 1 – 2 cm H 2 O (98.0665 – 196.133 pascals). The pressure differential can fall below levels required for phonation either because of an increase in pressure above the glottis (superglottal pressure) or a decrease in pressure below the glottis (subglottal pressure). The subglottal pressure is maintained by the respiratory muscles . Supraglottal pressure, with no constrictions or articulations,

8364-490: The grammar are considered "primitives" in that they are the basis for his theoretical analysis rather than the objects of theoretical analysis themselves, and the principles can be inferred from his system of phonology. The Sanskrit study of phonetics is called Shiksha , which the 1st-millennium BCE Taittiriya Upanishad defines as follows: Om! We will explain the Shiksha. Sounds and accentuation, Quantity (of vowels) and

8487-419: The hands as well. Language production consists of several interdependent processes which transform a non-linguistic message into a spoken or signed linguistic signal. After identifying a message to be linguistically encoded, a speaker must select the individual words—known as lexical items —to represent that message in a process called lexical selection. During phonological encoding, the mental representation of

8610-656: The headquarters away from Switzerland. After several months of discussions and a referendum, the Bastien board members and the Komitato members left the UEA altogether and established, in September 1936, a new association, the Internacia Esperanto-Ligo (IEL). Nearly all national organizations and individual members followed. In Geneva there remained a near-deserted shell of the UEA, in which the old leaders once again took power,

8733-491: The higher formants. Articulations taking place just behind the alveolar ridge, known as post-alveolar consonants , have been referred to using a number of different terms. Apical post-alveolar consonants are often called retroflex, while laminal articulations are sometimes called palato-alveolar; in the Australianist literature, these laminal stops are often described as 'palatal' though they are produced further forward than

8856-430: The highest point of the tongue during articulation. The height parameter is divided into four primary levels: high (close), close-mid, open-mid, and low (open). Vowels whose height are in the middle are referred to as mid. Slightly opened close vowels and slightly closed open vowels are referred to as near-close and near-open respectively. The lowest vowels are not just articulated with a lowered tongue, but also by lowering

8979-547: The jaw. While the IPA implies that there are seven levels of vowel height, it is unlikely that a given language can minimally contrast all seven levels. Chomsky and Halle suggest that there are only three levels, although four levels of vowel height seem to be needed to describe Danish and it is possible that some languages might even need five. Vowel backness is dividing into three levels: front, central and back. Languages usually do not minimally contrast more than two levels of vowel backness. Some languages claimed to have

9102-412: The large number of coronal contrasts exhibited within and across languages in the region. Dental consonants are made with the tip or blade of the tongue and the upper teeth. They are divided into two groups based upon the part of the tongue used to produce them: apical dental consonants are produced with the tongue tip touching the teeth; interdental consonants are produced with the blade of the tongue as

9225-411: The mid-1990s, and he created a Web page that compiled media references to Estuary English , although he was sceptical of the concept. After retirement, Wells ran a regular blog on phonetic topics from March 2006 to April 2013. He announced the end of his blog on 22 April 2013 saying, "if I have nothing new to say, then the best plan is to stop talking." A considerable part of Wells's research focuses on

9348-474: The modification of an airstream which results in a sound wave. The modification is done by the articulators, with different places and manners of articulation producing different acoustic results. Because the posture of the vocal tract, not just the position of the tongue can affect the resulting sound, the manner of articulation is important for describing the speech sound. The words tack and sack both begin with alveolar sounds in English, but differ in how far

9471-607: The money and how it should decide on spending the money. In 1906, the French Gen. Hyppolyte Sebert created his Esperantista Centra Oficejo (Central Office of the Esperantists) in Paris. It collected information on the movement and published an Oficiala Gazeto . In spite of this 'official' name, the office was a purely private enterprise of Sebert, but he tried to engender support from the various national associations. One year later, at

9594-493: The more noisy waveform of whispery voice. Acoustically, both tend to dampen the first formant with whispery voice showing more extreme deviations. Holding the vocal folds more tightly together results in a creaky voice. The tension across the vocal folds is less than in modal voice, but they are held tightly together resulting in only the ligaments of the vocal folds vibrating. The pulses are highly irregular, with low pitch and frequency amplitude. Some languages do not maintain

9717-406: The muscle and joint locations which produce the observed path or acoustic signal. The arm, for example, has seven degrees of freedom and 22 muscles, so multiple different joint and muscle configurations can lead to the same final position. For models of planning in extrinsic acoustic space, the same one-to-many mapping problem applies as well, with no unique mapping from physical or acoustic targets to

9840-436: The muscle movements required to achieve them. Concerns about the inverse problem may be exaggerated, however, as speech is a highly learned skill using neurological structures which evolved for the purpose. The equilibrium-point model proposes a resolution to the inverse problem by arguing that movement targets be represented as the position of the muscle pairs acting on a joint. Importantly, muscles are modeled as springs, and

9963-510: The neutrality of UEA. Specialist organizations are similar to the national organizations. They are divided into two groups: The youth section TEJO has two affiliated specialist groups, the Esperantist cyclists and Esperantist rock music fans. UEA publishes Esperanto , the most important Esperanto periodical . It was started in 1905 by Paul Berthelot, three years before UEA was founded. UEA founder Hector Hodler took it over in 1907 and made it

10086-552: The official UEA magazine in 1908. In 1920 he left the magazine to the association. Since the 1950s it has had a paid editor-in-chief. Next to Esperanto , the Yearbook ( Jarlibro de UEA ) which published for 108 years, was the oldest continuous publication of the association. UEA publishes books and has the largest mail-order Esperanto bookstore in the world (with over 6,000 book titles, CDs and other items). It also maintains an information centre and an important Esperanto library , called

10209-405: The palate region typically described as palatal. Because of individual anatomical variation, the precise articulation of palato-alveolar stops (and coronals in general) can vary widely within a speech community. Dorsal consonants are those consonants made using the tongue body rather than the tip or blade and are typically produced at the palate, velum or uvula. Palatal consonants are made using

10332-402: The part of the tongue used to produce them: most languages with dental stops have laminal dentals, while languages with apical stops usually have apical stops. Languages rarely have two consonants in the same place with a contrast in laminality, though Taa (ǃXóõ) is a counterexample to this pattern. If a language has only one of a dental stop or an alveolar stop, it will usually be laminal if it

10455-417: The phonetic description of varieties of English . In 1982, Cambridge University Press published his three volumes of Accents of English that described accents all over the English-speaking world in phonetic terminology. This applied consistent terminology to accents that had previously been analysed in isolation. Accents of English defined the concept of lexical sets, a concept in wide usage. A lexical set

10578-418: The position of the tongue or the position on the roof of the mouth is given prominence. In general, they represent a group of articulations in which the tip of the tongue is curled upwards to some degree. In this way, retroflex articulations can occur in several different locations on the roof of the mouth including alveolar, post-alveolar, and palatal regions. If the underside of the tongue tip makes contact with

10701-460: The previous congress, two for the current one, and two for the next following congress. Esperantists agreed that the whole movement must support two common international tasks: international documentation, propaganda in countries without movements of their own, lobbying at international organizations, organizing the world congresses, etc. Esperantists did disagree on which or what organization should be responsible for these tasks, how it should collect

10824-455: The process of language production occurs in a series of stages (serial processing) or whether production processes occur in parallel. After identifying a message to be linguistically encoded, a speaker must select the individual words—known as lexical items —to represent that message in a process called lexical selection. The words are selected based on their meaning, which in linguistics is called semantic information. Lexical selection activates

10947-469: The roof of the mouth, it is sub-apical though apical post-alveolar sounds are also described as retroflex. Typical examples of sub-apical retroflex stops are commonly found in Dravidian languages , and in some languages indigenous to the southwest United States the contrastive difference between dental and alveolar stops is a slight retroflexion of the alveolar stop. Acoustically, retroflexion tends to affect

11070-546: The same subjects: the Komitato of UEA, the Ko-Ro of the national associations and the six members of the ICK. From 1929, they all had a joint gathering called Ĝenerala Estraro (general board). A number of proposals came up in the movement to reform the organization. The final blow to the Helsinki system came in 1932 when UEA did not pay its contributions for the common budget, and the same

11193-514: The signal that can reliably distinguish between linguistic categories. While certain cues are prioritized over others, many aspects of the signal can contribute to perception. For example, though oral languages prioritize acoustic information, the McGurk effect shows that visual information is used to distinguish ambiguous information when the acoustic cues are unreliable. Modern phonetics has three branches: The first known study of phonetics phonetic

11316-555: The so-called Genevan UEA. The international Esperanto movement survived World War II with its IEL headquarters in Heronsgate , near London. Hans Jakob, from the Genevan UEA, tricked the IEL board into a merger of IEL and the rump Genevan UEA, falsely stating that the wealthy Eduard Stettler had left a huge sum to the UEA. Ivo Lapenna , a London law professor originally coming from Croatia, in

11439-421: The sounds [s] and [ʃ] are both coronal, but they are produced in different places of the mouth. To account for this, more detailed places of articulation are needed based upon the area of the mouth in which the constriction occurs. Articulations involving the lips can be made in three different ways: with both lips (bilabial), with one lip and the teeth, so they have the lower lip as the active articulator and

11562-563: The target is the equilibrium point for the modeled spring-mass system. By using springs, the equilibrium point model can easily account for compensation and response when movements are disrupted. They are considered a coordinate model because they assume that these muscle positions are represented as points in space, equilibrium points, where the spring-like action of the muscles converges. Gestural approaches to speech production propose that articulations are represented as movement patterns rather than particular coordinates to hit. The minimal unit

11685-414: The task of the national associations (often federations of local groups). They did not like the perspective that new Esperantists, created by the traditional groups, would be picked up by UEA. The national associations then tried to build up an international organizational level of their own. A first attempt took the form of rajtigitaj delegitoj to the congresses in 1911 and 1912 (not to be confused with

11808-416: The throat are pharyngeals, and those made by a constriction in the larynx are laryngeal. Laryngeals are made using the vocal folds as the larynx is too far down the throat to reach with the tongue. Pharyngeals however are close enough to the mouth that parts of the tongue can reach them. Radical consonants either use the root of the tongue or the epiglottis during production and are produced very far back in

11931-520: The tip of the tongue sticks out in front of the teeth. No language is known to use both contrastively though they may exist allophonically . Alveolar consonants are made with the tip or blade of the tongue at the alveolar ridge just behind the teeth and can similarly be apical or laminal. Crosslinguistically, dental consonants and alveolar consonants are frequently contrasted leading to a number of generalizations of crosslinguistic patterns. The different places of articulation tend to also be contrasted in

12054-485: The tongue are called lingual. Constrictions made with the tongue can be made in several parts of the vocal tract, broadly classified into coronal, dorsal and radical places of articulation. Coronal articulations are made with the front of the tongue, dorsal articulations are made with the back of the tongue, and radical articulations are made in the pharynx . These divisions are not sufficient for distinguishing and describing all speech sounds. For example, in English

12177-408: The tongue body against the hard palate on the roof of the mouth. They are frequently contrasted with velar or uvular consonants, though it is rare for a language to contrast all three simultaneously, with Jaqaru as a possible example of a three-way contrast. Velar consonants are made using the tongue body against the velum . They are incredibly common cross-linguistically; almost all languages have

12300-451: The tongue in a particular location. These phonemes are then coordinated into a sequence of muscle commands that can be sent to the muscles, and when these commands are executed properly the intended sounds are produced. Thus the process of production from message to sound can be summarized as the following sequence: Sounds which are made by a full or partial constriction of the vocal tract are called consonants . Consonants are pronounced in

12423-428: The tongue is from the alveolar ridge. This difference has large effects on the air stream and thus the sound that is produced. Similarly, the direction and source of the airstream can affect the sound. The most common airstream mechanism is pulmonic—using the lungs—but the glottis and tongue can also be used to produce airstreams. A major distinction between speech sounds is whether they are voiced. Sounds are voiced when

12546-642: The tongue which, unlike joints of the jaw and arms, is a muscular hydrostat —like an elephant trunk—which lacks joints. Because of the different physiological structures, movement paths of the jaw are relatively straight lines during speech and mastication, while movements of the tongue follow curves. Straight-line movements have been used to argue articulations as planned in extrinsic rather than intrinsic space, though extrinsic coordinate systems also include acoustic coordinate spaces, not just physical coordinate spaces. Models that assume movements are planned in extrinsic space run into an inverse problem of explaining

12669-550: The upper section of the vocal tract actively moves downward, as the upper lip shows some active downward movement. Linguolabial consonants are made with the blade of the tongue approaching or contacting the upper lip. Like in bilabial articulations, the upper lip moves slightly towards the more active articulator. Articulations in this group do not have their own symbols in the International Phonetic Alphabet, rather, they are formed by combining an apical symbol with

12792-431: The upper teeth as the passive articulator (labiodental), and with the tongue and the upper lip (linguolabial). Depending on the definition used, some or all of these kinds of articulations may be categorized into the class of labial articulations . Bilabial consonants are made with both lips. In producing these sounds the lower lip moves farthest to meet the upper lip, which also moves down slightly, though in some cases

12915-682: The various sounds on the International Phonetic Alphabet and the IPA still tests and certifies speakers on their ability to accurately produce the phonetic patterns of English (though they have discontinued this practice for other languages). As a revision of his visible speech method, Melville Bell developed a description of vowels by height and backness resulting in 9 cardinal vowels . As part of their training in practical phonetics, phoneticians were expected to learn to produce these cardinal vowels to anchor their perception and transcription of these phones during fieldwork. This approach

13038-525: The vocal folds begin to vibrate in the process of phonation. Many sounds can be produced with or without phonation, though physical constraints may make phonation difficult or impossible for some articulations. When articulations are voiced, the main source of noise is the periodic vibration of the vocal folds. Articulations like voiceless plosives have no acoustic source and are noticeable by their silence, but other voiceless sounds like fricatives create their own acoustic source regardless of phonation. Phonation

13161-447: The vocal folds closer together results in creaky voice. The normal phonation pattern used in typical speech is modal voice, where the vocal folds are held close together with moderate tension. The vocal folds vibrate as a single unit periodically and efficiently with a full glottal closure and no aspiration. If they are pulled farther apart, they do not vibrate and so produce voiceless phones. If they are held firmly together they produce

13284-454: The vocal folds to vibrate, they must be in the proper position and there must be air flowing through the glottis. Phonation types are modeled on a continuum of glottal states from completely open (voiceless) to completely closed (glottal stop). The optimal position for vibration, and the phonation type most used in speech, modal voice, exists in the middle of these two extremes. If the glottis is slightly wider, breathy voice occurs, while bringing

13407-445: The vocal folds. If the vocal folds are not close or tense enough, they will either vibrate sporadically or not at all. If they vibrate sporadically it will result in either creaky or breathy voice, depending on the degree; if do not vibrate at all, the result will be voicelessness . In addition to correctly positioning the vocal folds, there must also be air flowing across them or they will not vibrate. The difference in pressure across

13530-430: The vocal tract, usually in the mouth, and the location of this constriction affects the resulting sound. Because of the close connection between the position of the tongue and the resulting sound, the place of articulation is an important concept in many subdisciplines of phonetics. Sounds are partly categorized by the location of a constriction as well as the part of the body doing the constricting. For example, in English

13653-479: The vocal tract. Pharyngeal consonants are made by retracting the root of the tongue far enough to almost touch the wall of the pharynx . Due to production difficulties, only fricatives and approximants can be produced this way. Epiglottal consonants are made with the epiglottis and the back wall of the pharynx. Epiglottal stops have been recorded in Dahalo . Voiced epiglottal consonants are not deemed possible due to

13776-525: The war, at The Hague congress. The discussions eventually created the so-called Helsinki system, on which UEA and the national associations agreed at the congress of 1922 in the Finnish capital . This system defined the movement to consist of these 'official' entities: This Helsinki system lasted for only a couple of years. The heads of the movement saw that at the world congresses there was considerable overlap, and three separate groups were discussing essentially

13899-545: The war, the UEA at times employed ten or more people (e.g. a congress manager, a book seller, a librarian.) Lapenna introduced a prestige policy , for which he was willing to spend considerable funds. This included signature campaigns for Esperanto and efforts to make UNESCO support Esperanto in a moral way, which Lapenna accomplished in 1954 at the UNESCO conference in Montevideo, Uruguay. This made him famous in Esperanto circles as

14022-445: The word's lemma , which contains both semantic and grammatical information about the word. After an utterance has been planned, it then goes through phonological encoding. In this stage of language production, the mental representation of the words are assigned their phonological content as a sequence of phonemes to be produced. The phonemes are specified for articulatory features which denote particular goals such as closed lips or

14145-412: The words fought and thought are a minimal pair differing only in the organ making the construction rather than the location of the construction. The "f" in fought is a labiodental articulation made with the bottom lip against the teeth. The "th" in thought is a linguodental articulation made with the tongue against the teeth. Constrictions made by the lips are called labials while those made with

14268-486: The words are assigned their phonological content as a sequence of phonemes to be produced. The phonemes are specified for articulatory features which denote particular goals such as closed lips or the tongue in a particular location. These phonemes are then coordinated into a sequence of muscle commands that can be sent to the muscles and when these commands are executed properly the intended sounds are produced. These movements disrupt and modify an airstream which results in

14391-480: Was apparently approached by the Home Office to work on speaker identification but turned down the offer as it was still considered unacceptable to be gay at the time, and he feared that the security check would make his sexual orientation public. In September 2006 he signed a civil partnership with Gabriel Parsons, a native of Montserrat and his partner since 1968. Wells is a member of London Gay Men's Chorus and

14514-458: Was critiqued by Peter Ladefoged in the 1960s based on experimental evidence where he found that cardinal vowels were auditory rather than articulatory targets, challenging the claim that they represented articulatory anchors by which phoneticians could judge other articulations. Language production consists of several interdependent processes which transform a nonlinguistic message into a spoken or signed linguistic signal. Linguists debate whether

14637-524: Was featured in their It Gets Better video. He is also a player of the melodeon and has uploaded videos of his playing to YouTube. Phonetics Phonetics deals with two aspects of human speech: production (the ways humans make sounds) and perception (the way speech is understood). The communicative modality of a language describes the method by which a language produces and perceives languages. Languages with oral-aural modalities such as English produce speech orally and perceive speech aurally (using

14760-511: Was president of the Spelling Society , which advocates spelling reform, from 2003 to 2013. He was criticised in a speech by David Cameron for advocating tolerance of text spelling . His father was originally from South Africa, and his mother was English; he has two younger brothers. Wells grew up in Up Holland , Lancashire, born to the vicar of the parish, Philip Wells. He has commented on

14883-415: Was the Komitato. It gathered representatives from the national organizations; the numbers depended on the size of the national organization. Other representatives were elected by the delegates, depending on the number of delegates. A third group of representatives was elected by the two first groups; this opened the possibility to include 'experts' who were not linked to a national organization or popular among

15006-399: Was true for some of the national associations. The British, German and French associations, the largest ones, took up the initiative to found a new organization, Universala Federacio Esperantista (World Federation of Esperantists), as a federation of national associations. This new organization had scarcely come into existence when in early 1933 the UEA and the national organizations agreed on

15129-641: Was undertaken by Sanskrit grammarians as early as the 6th century BCE. The Hindu scholar Pāṇini is among the most well known of these early investigators. His four-part grammar, written c.  350 BCE , is influential in modern linguistics and still represents "the most complete generative grammar of any language yet written". His grammar formed the basis of modern linguistics and described several important phonetic principles, including voicing. This early account described resonance as being produced either by tone, when vocal folds are closed, or noise, when vocal folds are open. The phonetic principles in

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