Comparison of ASCII encodings of the International Phonetic Alphabet
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The International Phonetic Alphabet (IPA) consists of more than 100 letters and diacritics. Before Unicode became widely available, several ASCII-based encoding systems of the IPA were proposed. The alphabet went through a large revision at the Kiel Convention of 1989, and the vowel symbols again in 1993.[1] Systems devised before these revisions inevitably lack support for the additions they introduced.
This article contains phonetic transcriptions in the International Phonetic Alphabet (IPA). For an introductory guide on IPA symbols, see Help:IPA. For the distinction between [ ], / / and ⟨ ⟩, see IPA § Brackets and transcription delimiters.
Only language-neutral systems are discussed below because language-dependent ones (such as ARPABET) do not allow for a systematic comparison.