greek-phonology

Ancient Greek pronunciation tools: Greek text to IPA under four schemes (Modern, Koine, restored Attic, Erasmian), a guess at which scheme a speaker used from their IPA, syllables, accents, and an NT + LXX word list. Built with MoonBit; no dependencies. Playground · Source

npm install greek-phonology

import { ipa, g2p, phoneDistance, schemeId, detect, call, loadLexicon } from "greek-phonology";
ipa("ἐν ἀρχῇ ἦν ὁ λόγος", "koine");          // "ɛ n | a r kʰ e | e n | o | l o ɣ o s"
g2p("αι", "modern");                          // units that tile the typed word
phoneDistance("ð", "d", "koine", "gracious"); // tier, note, and advice
schemeId("attic-reconstructed");              // "attic"
detect("e n | a r x i", "ἐν ἀρχῇ").probs;    // { modern: …, koine: …, attic: …, erasmian: … }
call("accentuate_verb", "λυομεν");            // "λύομεν"
loadLexicon();                                 // optional: enables lookup() and accent restoration

Schemes: "modern", "koine", "attic", "erasmian". Phones are separated by spaces, words by |. g2p(text, scheme, flags) is the same reading split into grapheme units. alts and ctx are optional flags and default off; neither changes ipa(). Koine word-final αυ/ευ/ηυ is [v]. phoneDistance, phoneCredit, hearingCredit, unitHearingCredit, and distTable score a heard phone against a target. The learner goal (strict, gracious, lenient) changes acceptance and credit only. gracious is the default. creditLevel maps a combined credit to a display level (cutoffs 8, 30, 60, 85, and 95 percent). schemeId turns a long scheme id into modern, koine, attic, or erasmian. alignPhonesJson aligns a recognizer posterior to target phones (restarts, skips, repeats, stray sounds) and does not affect ipa(). The detector uses no audio data: a simple prior over recognizer confusions plus phone-bigram tables from SBLGNT and Rahlfs LXX word counts. greek-phonology.wasm (byte-buffer ABI, see the repo's docs/app.js) is included for browsers and other hosts.

Word list: SBL Greek New Testament (CC BY 4.0) and Rahlfs 1935 LXX forms. Code: MIT.