Comparison of ASCII encodings of the International Phonetic Alphabet


The International Phonetic Alphabet 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. Systems devised before these revisions inevitably lack support of the additions they introduced.
Only language-neutral systems are discussed below because language-dependent ones do not allow for a systematic comparison.

General information

Symbols

Only the symbols in the latest IPA chart are included. The numbers in the leftmost column, according to which the symbols are sorted, are the IPA Numbers. Some of the IPA symbols to which a system lacks a corresponding symbol may still be represented in that system by use of a modifier, but such combinations are not included unless the documentation explicitly assigns one for the value.
#IPABrannerPHONASCIIPraatUPSIDUsenetWorldbetX-SAMPAValue
101ppppppppVoiceless bilabial stop
102bbbbbbbbVoiced bilabial stop
103ttttttttVoiceless alveolar stop
104ddddddddVoiced alveolar stop
105tr)tdnnj\njnjn^n~JVoiced palatal nasal
119ng)g~ng\ngNNNNVoiced velar nasal
120NNN\ncnUn"NqN\Voiced uvular nasal
121Bbb\bcb<trl>BB\Voiced bilabial trill
122rrrrrrr<trl>rrVoiced alveolar trill
123RRRR\rcRr"RR\Voiced uvular trill
124r"r*dt\fhr,ap\Uv]_aApical
410,lm\Dvefn|name=worldbet-proposedIPA|◌̜IPA|◌̴efn|name=mo-hyphenIPA|◌̝efn|name=mo-period|. represents either raised or palatalized in Millar & Oasa's system.IPA|◌̞IPA|◌̩IPA|◌̯efn|name=mo-asterisk|* represents either non-syllabic or extra-short in Millar & Oasa's system.IPA|◌͡◌efn|)) representing a tie bar is placed after both segments, as in ts)), in Branner's system.IPA|◌͜◌efn|)) representing a tie bar is placed after both segments, as in ts)), in Branner's system.IPA|ˈIPA|ˌIPA|ːIPA|ˑIPA|◌̆efn|name=mo-asteriskIPA|.IPA||IPA|‖IPA|‿IPA|↗IPA|↘IPA|◌̋IPA|◌́IPA|◌̄IPA|◌̀IPA|◌̏IPA|ꜛIPA|ꜜIPA|˥IPA|˦IPA|˧IPA|˨IPA|˩IPA|◌̌IPA|◌̂IPA|◌᷄IPA|◌᷅IPA|◌᷈

Coverage

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