User:Nuvolet/sandbox

Phonology
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Vowels
Vowels:
 * Stressed /i, u/ → [i̞, u̞] or [ɪ̝, ʊ̝] (depending on the case)
 * Unstressed /i, u/ → [ɪ, ʊ] (they often stay unchanged from stressed /i, u/ due to vowel harmony)
 * Stressed /e, o/ (in final open syllables, and in the suffix -or) → [e̞, o̞]
 * Unstressed /e/ → [ɘ/ɵ ~ ɜ/ɞ ~ ɐ ~ (e̠)] (in Eastern Catalan) and [e̠ ~ (/a/: ɐ, æ̈, ʌ̞̈) ~ (/i/: ɪ)] (in Western Catalan)
 * Unstressed /o/ → [ʊ ~ (o̟)] (unstressed [o̟] is found more frequently in Western dialects and Majorcan)
 * Stressed /ɛ, ɔ/ → [ɛ, ɔ] or [æ, ɒ] (depending on the dialect/environment)
 * Stressed /ɛ/ (in final closed syllables, especially before liquids) → [æ̠]
 * Stressed /a/ → [a/æ̞] (found in contact with palatals) and [ɑ] (found in contact with velars).
 * Unstressed /a/ → [ɘ/ɵ ~ ɜ/ɞ ~ ɐ ~ (ä̝)] (Eastern Catalan) and [ɐ/ä̝ ~ (ʌ̞̈/ɑ̝̈) ~ (ɛ̞̈/æ̈) ~ (ɔ̞̈/ɒ̝̈)] (Western Catalan)
 * Examples of vowel harmony with /a/: /CV1(C)CV2/ → [CV1(C)CV1], /CV1(C)CV2CV3/ → [CV1(C)CV2CV2], /CV1CCV2C/ → [CV2CCV2C], /V1CV2(C)CV1/ → [V2CV2(C)CV2], /CV1CV2CV3CV2/ → [CV3CV3CV3CV3], etc.
 * /aa, ee, etc./ → [ɐ:/a:, ɘ:/e:, etc.]
 * /aN, eN, etc./ → [ɐ̃N, ẽN, etc.]

Comparison between dialects
List of sound variation by dialect. There are probably many mistakes, it needs to be checked with sources and references.