The reference, with one thing made explicit: the vowels i and u disappear between voiceless consonants and at the end of a word after s. 'Desu' is 'des', 'shita' is 'shta'. It is the feature that makes Tokyo Japanese sound clipped, and the one Kansai does not do.
Où: Tokyo and the standard
La porte d’entrée: Whisper every u after s: 'desu', 'masu' become des, mas.
Essayez un mot
Tout ce que le moteur d’orthographe sait transcrire, l’accent sait le déplacer. Ralentissez pour entendre la forme.
Pitch accent, not stress: each word has one place where the pitch drops, and that place is the word's identity. 橋 hashi falls after ha, 箸 hashi falls after shi. Sentences are level with a fall at the end; the question particle ka rises.
Ce qui bouge, règle par règle
Dans l’ordre où la bouche les applique. Chaque avant/après est écoutable — cliquez sur l’API. Le motif est la règle telle que le moteur l’exécute, pour les curieux.
Voyelles
u drops after s at the end of a word
([sɕ])ɯ(?=$| ) → $1
Quand: after s or sh, at the end of a word
Comment: Say the s and stop. Do not voice anything after it.
Vowel devoicing. The mouth still shapes the u, but the vocal cords do not turn on, so nothing is heard. The spelling keeps it; the ear does not.
Mot
Référence
Accent
desu
masu
arimasu
i and u go silent between voiceless consonants
([kstɕɸçhp])[iɯ](?=[kstɕɸçhp]) → $1
Quand: between two of k, s, t, sh, f, h, p
Comment: Whisper the vowel or skip it entirely — either is native.
The same devoicing inside a word. 'Shita' has two syllables on paper and sounds like one and a half.