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Kirshenbaum , sometimes called ASCII-IPA or erkIPA, is a system used to represent the
International Phonetic Alphabet The International Phonetic Alphabet (IPA) is an alphabetic system of phonetic notation based primarily on the Latin script. It was devised by the International Phonetic Association in the late 19th century as a standardized representation ...
(IPA) in
ASCII ASCII ( ), abbreviated from American Standard Code for Information Interchange, is a character encoding standard for electronic communication. ASCII codes represent text in computers, telecommunications equipment, and other devices. Because ...
. This way it allows typewriting IPA-symbols by regular keyboard. It was developed for
Usenet Usenet () is a worldwide distributed discussion system available on computers. It was developed from the general-purpose Unix-to-Unix Copy (UUCP) dial-up network architecture. Tom Truscott and Jim Ellis conceived the idea in 1979, and it wa ...
, notably the newsgroups sci.lang and alt.usage.english. It is named after Evan Kirshenbaum, who led the collaboration that created it. The
eSpeak eSpeakNG is a free and open-source, cross-platform, compact, software speech synthesizer. It uses a formant synthesis method, providing many languages in a relatively small file size. Much of the programming for eSpeakNG's language support is ...
open source software
speech synthesizer Speech synthesis is the artificial production of human speech. A computer system used for this purpose is called a speech synthesizer, and can be implemented in software or hardware products. A text-to-speech (TTS) system converts normal languag ...
uses the Kirshenbaum scheme.


Comparison of Kirshenbaum with X-SAMPA

The system uses almost all lower-case letters to represent the directly corresponding IPA character, but unlike
X-SAMPA The Extended Speech Assessment Methods Phonetic Alphabet (X-SAMPA) is a variant of SAMPA developed in 1995 by John C. Wells, professor of phonetics at University College London. It is designed to unify the individual language SAMPA alphabets, a ...
, has the notable exception of the letter 'r'. Examples where the two systems have a different mapping between characters and sounds are: {, class=wikitable ! Sound !! IPA !! X-SAMPA !! Kirshenbaum , - ,
alveolar trill The voiced alveolar trill is a type of consonantal sound used in some spoken languages. The symbol in the International Phonetic Alphabet that represents dental, alveolar, and postalveolar trills is , and the equivalent X-SAMPA symbol is ...
, , , , r , , r<trl> , - ,
alveolar approximant The voiced alveolar approximant is a type of consonantal sound used in some spoken languages. The symbol in the International Phonetic Alphabet that represents the alveolar and postalveolar approximants is , a lowercase letter ''r'' rotated 180 ...
, , , , r\ , , r , - , near-open front unrounded vowel , , , , { , , & , - ,
open back rounded vowel The open back rounded vowel, or low back rounded vowel, is a type of vowel sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is . It is called "turned script ''a''", being a rotated ...
, , , , Q , , A. , - ,
open-mid central unrounded vowel The open-mid central unrounded vowel, or low-mid central unrounded vowel, is a type of vowel sound, used in some spoken languages. The symbol in the International Phonetic Alphabet The International Phonetic Alphabet (IPA) is an alphab ...
, , , , 3 , , V" , - , primary stress , , , , " , , ' , - ,
secondary stress Secondary stress (or obsolete: secondary accent) is the weaker of two degrees of Stress (linguistics), stress in the pronunciation of a word, the stronger degree of stress being called ''primary''. The International Phonetic Alphabet symbol for ...
, , , , % , , ,


Kirshenbaum charts of consonants and vowels

''This chart is based on information provided in the Kirshenbaum specification. It may also be helpful to compare it to the SAMPA chart or X-SAMPA chart.''


Consonant chart

{, class="wikitable" style="text-align: center" , + Kirshenbaum chart of
consonant In articulatory phonetics, a consonant is a speech sound that is articulated with complete or partial closure of the vocal tract. Examples are and pronounced with the lips; and pronounced with the front of the tongue; and pronounced wi ...
s (the paired signs are voiceless/voiced consonants) , - style="vertical-align: center; font-size: x-small; height: 2em" , rowspan=2 style="font-size: 90%;" ,
Place of articulation In articulatory phonetics, the place of articulation (also point of articulation) of a consonant is a location along the vocal tract where its production occurs. It is a point where a constriction is made between an active and a passive articula ...
→ ! colspan=2 , Labial ! colspan=4 , Coronal ! colspan=4 ,
Dorsal Dorsal (from Latin ''dorsum'' ‘back’) may refer to: * Dorsal (anatomy), an anatomical term of location referring to the back or upper side of an organism or parts of an organism * Dorsal, positioned on top of an aircraft's fuselage * Dorsal c ...
! colspan=2 , Laryngeal ! colspan=1 rowspan=3 style="width: 4em;" , Alveolar laterals , - style="vertical-align: center; font-size: x-small; height: 3em" ! rowspan=2 style="width: 4em;" ,
Bilabial In phonetics, a bilabial consonant is a labial consonant articulated with both lips. Frequency Bilabial consonants are very common across languages. Only around 0.7% of the world's languages lack bilabial consonants altogether, including Tli ...
! rowspan=2 style="width: 4em;" , Labio‐
dental
! rowspan=2 style="width: 4em;" , Dental ! rowspan=2 style="width: 4em;" , Alveolar ! rowspan=2 style="width: 4em;" , Retro‐
flex
! rowspan=2 style="width: 4em;" , Palato‐
alveolar
! rowspan=2 style="width: 4em;" ,
Palatal 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 separ ...
! rowspan=2 style="width: 4em;" ,
Velar Velars are consonants articulated with the back part of the tongue (the dorsum) against the soft palate, the back part of the roof of the mouth (known also as the velum). Since the velar region of the roof of the mouth is relatively extensive a ...
! rowspan=2 style="width: 4em;" ,
Uvular Uvulars are consonants articulated with the back of the tongue against or near the uvula, that is, further back in the mouth than velar consonants. Uvulars may be stops, fricatives, nasals, trills, or approximants, though the IPA does not prov ...
! rowspan=2 style="width: 4em;" , Labio‐
velar
! rowspan=2 style="width: 4em;" , Pharyn‐
geal
! colspan=1 rowspan=2 style="width: 4em;" , Glottal , - style="vertical-align: center; font-size: x-small; height: 3em" , style="font-size: 90%;" , Manner of articulation ↓ , - !style="font-size:x-small;text-align:center",
Nasals In phonetics, a nasal, also called a nasal occlusive or nasal stop in contrast with an oral stop or nasalized consonant, is an occlusive consonant produced with a lowered velum, allowing air to escape freely through the nose. The vast majorit ...
, m , M , n n , n. , , n^ , N , n" , n<lbv> , , , , - !style="font-size:x-small;text-align:center", Stop consonant, Stops , p b , , t[ d[ , t d , t. d. , , c J , k g , q G , t<lbv> d<lbv> , , ? , , - !style="font-size:x-small;text-align:center", Fricative consonant, Fricatives , P B , f v , T D , s z , s. z. , S Z , C C<vcd> , x Q , X g" , w<vls> w , H H<vcd> , h , s z , - !style="font-size:x-small;text-align:center",
Approximants Approximants are speech sounds that involve the articulators approaching each other but not narrowly enough nor with enough articulatory precision to create turbulent airflow. Therefore, approximants fall between fricatives, which do produce a ...
, , r<lbd> , r[ , r , r. , , j , j<vel> , g" , w , , h , , - !style="font-size:x-small;text-align:center", Lateral consonant, Laterals , , , l[ , l , l. , , l^ , L , , , , , - !style="font-size:x-small;text-align:center", Trill consonant, Trills , b<trl> , , , r<trl> , , , , , r" , , , , , - !style="font-size:x-small;text-align:center", Flaps , , , ,   * ,   *. , , , , , , , , *<lat> , - !style="font-size:x-small;text-align:center",
Ejectives In phonetics, ejective consonants are usually voiceless consonants that are pronounced with a glottalic egressive airstream. In the phonology of a particular language, ejectives may contrast with aspirated, voiced and tenuis consonants. Some l ...
, p` , , t t` , , , c` , k` , q` , , , , , - !style="font-size:x-small;text-align:center", Implosive consonant, Implosives , b` , , d` , d` , , , J` , g` , G` , , , , , - !style="font-size:x-small;text-align:center", Click consonant, Clicks , p! , , t! , c!Kirshenbaum assigned to IPA , which it used indifferently for both alveolar and palatal clicks. , , , c! , k! , , , , , l! The IPA consonant chart, for comparison, uses many symbols that are less widely supported:


Vowel chart

{, class="wikitable" style="text-align:center;" , - , colspan=5 , Kirshenbaum simplified chart of
vowel A vowel is a syllabic speech sound pronounced without any stricture in the vocal tract. Vowels are one of the two principal classes of speech sounds, the other being the consonant. Vowels vary in quality, in loudness and also in quantity (leng ...
s
''(the paired signs are unrounded/rounded vowels; symbols in parentheses designate vowels that exist in some
oral language A spoken language is a language produced by articulate sounds or (depending on one's definition) manual gestures, as opposed to a written language. An oral language or vocal language is a language produced with the vocal tract in contrast with a si ...
s, but do not have IPA signs)'' , - ! ! width=20% , Front ! width=20% , Central ! width=20% ,
Back The human back, also called the dorsum, is the large posterior area of the human body, rising from the top of the buttocks to the back of the neck. It is the surface of the body opposite from the chest and the abdomen. The vertebral column runs ...
! width=20% , Rhotic , - ,
Close Close may refer to: Music * ''Close'' (Kim Wilde album), 1988 * ''Close'' (Marvin Sapp album), 2017 * ''Close'' (Sean Bonniwell album), 1969 * "Close" (Sub Focus song), 2014 * "Close" (Nick Jonas song), 2016 * "Close" (Rae Sremmurd song), 201 ...
, i y , i" u" , u- u , , - , Near-close , I I. , , (U-) U , , - , Close-mid , e Y , @<umd> @. , o- o , R<umd> , - , Mid , , @ , , R , - , Open-mid , E W , V" O" , V O , , - , Near-open , & , &" , ''(no symbols)'' , , - ,
Open Open or OPEN may refer to: Music * Open (band), Australian pop/rock band * The Open (band), English indie rock band * ''Open'' (Blues Image album), 1969 * ''Open'' (Gotthard album), 1999 * ''Open'' (Cowboy Junkies album), 2001 * ''Open'' ( ...
, a a. , (a" A".) , A A. , The IPA vowel chart, by comparison, uses many symbols that are less widely supported:


Vowel modifiers and diacritics

Modifiers and diacritics follow the symbol they modify. {, class="wikitable" style="text-align:center;" , - ! Modifier/diacritic ! Meaning , - , ~ ,
Nasalized In phonetics, nasalization (or nasalisation) is the production of a sound while the velum is lowered, so that some air escapes through the nose during the production of the sound by the mouth. An archetypal nasal sound is . In the Internationa ...
, - , : ,
Long Long may refer to: Measurement * Long, characteristic of something of great duration * Long, characteristic of something of great length * Longitude (abbreviation: long.), a geographic coordinate * Longa (music), note value in early music mens ...
, - , - ,
Unrounded In phonetics, vowel roundedness is 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 pro ...
, - , . , Rounded , - , " , Centralized , - , <?> , Murmured , - , <r> , Rhoticized Stress is indicated by ' for primary stress, and , for secondary stress, placed before the stressed syllable.


Background

The Kirshenbaum system started developing in August 1992 through a
usenet Usenet () is a worldwide distributed discussion system available on computers. It was developed from the general-purpose Unix-to-Unix Copy (UUCP) dial-up network architecture. Tom Truscott and Jim Ellis conceived the idea in 1979, and it wa ...
group, after "being fed up with describing the sound of words by using other words". It should be usable for both phonemic and narrow phonetic transcription. * It should be possible to represent all symbols and diacritics in the IPA. * The previous guideline notwithstanding, it is expected that (as in the past) most use will be in transcribing English, so where tradeoffs are necessary, decisions should be made in favor of ease of representation of phonemes which are common in English. * The representation should be readable. * It should be possible to mechanically translate from the representation to a character set which includes IPA. The reverse would also be nice. The developers decided to use the existing IPA alphabet, mapping each ''segment'' to a single keyboard character, and adding extra ASCII characters optionally for IPA ''diacritics''. An early (1993), different set in ASCII was derived from the pronunciation guide in Merriam-Webster's New Collegiate Dictionary, which uses straight letters to describe the sound. Kirshenbaum's document, ''Representing IPA phonetics in ASCII'', is commonly used as an example of an "IPA ASCII" system. The
eSpeak eSpeakNG is a free and open-source, cross-platform, compact, software speech synthesizer. It uses a formant synthesis method, providing many languages in a relatively small file size. Much of the programming for eSpeakNG's language support is ...
software
speech synthesizer Speech synthesis is the artificial production of human speech. A computer system used for this purpose is called a speech synthesizer, and can be implemented in software or hardware products. A text-to-speech (TTS) system converts normal languag ...
uses the Kirshenbaum scheme to represent
phonemes In phonology and linguistics, a phoneme () is a unit of sound that can distinguish one word from another in a particular language. For example, in most dialects of English, with the notable exception of the West Midlands and the north-west ...
with ascii characters.


Encoding

IETF language tag An IETF BCP 47 language tag is a standardized code or tag that is used to identify human languages in the Internet. The tag structure has been standardized by the Internet Engineering Task Force (IETF) in ''Best Current Practice (BCP) 47''; the s ...
s have registered as a variant subtag identifying text as transcribed in this convention.


Notes and references


Notes


References


External links


Kirshenbaum specification
( PDF file)
Tutorial and guide with sound samples


{{IPA navigation Phonetic alphabets ASCII International Phonetic Alphabet