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History of the English Phonetic Asociation

The evolution of the English Phonetic Association (IPA) has seen numerous changes since its formation in 1887. Major revisions took place in 1900 and 1932, with additional modifications in 1993 and 1994, including the adoption of new letters and extensions.

History  of the English 
Phonetic Asociation

History of the English Phonetic Asociation

Brackets and Phonemes

It used for phonetic details of pronunciation
Phonemes
Briad transcription
Narrow description
Brackets
Angle brackets
Double slashes
Slashes
Square brackets

Symbols and Sound

107 letters represent consonats and vowels: 31 diacritics are use to modify them 19 aditional signs indicate suprasegmentak qualities as length, tone,stress and information.
Symbols
Rotation
Cursive form
Diacritic
Capital lettes
Sounds
Vowels
Voiceless
Unaspirated
Non-Silent
Hard

Letterforms

Sistemiticy
Nasal
Implosion
Retroflex
Inspirated
Derived

History

2005-Letter labiodental
1994-Adoptes extensions
1993-Addition and removal letters
1900- Extension to the IPA
1989- IPA Kiel Convention
1900 & 1932- Great Revisions
1888-The IPA is revised
1987 -Formation if IPA