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Italian Lipsync #54

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e7af09a
Create lipsync-it.mjs
lupettohf Aug 5, 2024
09d7c7b
Fix for lipsync-it.mjs
lupettohf Aug 6, 2024
bf18d7d
Update talkinghead.mjs
lupettohf Dec 4, 2024
c7a8d8e
Revert "Fix for lipsync-it.mjs"
lupettohf Dec 5, 2024
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272 changes: 272 additions & 0 deletions modules/lipsync-it.mjs
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/**
* @class Italian lip-sync processor
* @autor Andrea Santaniello <andrea@monocul.us>
*/

class LipsyncIt {

/**
* @constructor
*/
constructor() {
this.rules = {
'A': [
"[A] =aa", "[AN] =aa nn", "[AM] =aa mm", "[AR] =aa rr", "[A]LL =aa",
" [ARE] =aa rr", "[AR]I=aa rr I", "[AT]O=aa tt O", "[AU] =aa U", "[AV]O=aa v O"
],
'B': [
" [B]=bb", "[B]R=bb rr", "[B]L=bb ll"
],
'C': [
"[CH]=k", "[C]A=kk aa", "[C]O=kk O", "[C]U=kk U", "[CI]=ch I", "[CE]=ch E"
],
'D': [
" [D]=dd", "[D]I=dd I", "[D]O=dd O", "[DI]A=dd I aa", "[DI]O=dd I O"
],
'E': [
"[E]=E", "[ER]=E rr", "[E]L=E ll", "[EM]=E mm", "[EN]=E nn", "[ES]=E ss"
],
'F': [
" [F]=ff", "[F]I=ff I", "[F]O=ff O", "[F]U=ff U", "[FR]=ff rr", "[FL]=ff ll"
],
'G': [
"[GH]=g", "[G]A=g aa", "[G]O=g O", "[G]U=g U", "[GI]=j I", "[GE]=j E"
],
'H': [
" [H]=h", "[H]O=h O", "[H]A=h aa", "[H]U=h U"
],
'I': [
"[I]=I", "[IN]=I nn", "[IM]=I mm", "[IR]=I rr"
],
'L': [
" [L]=ll", "[L]A=ll aa", "[L]O=ll O", "[L]U=ll U", "[LI]=ll I", "[LE]=ll E"
],
'M': [
" [M]=mm", "[M]A=mm aa", "[M]O=mm O", "[M]U=mm U", "[MI]=mm I", "[ME]=mm E"
],
'N': [
" [N]=nn", "[N]A=nn aa", "[N]O=nn O", "[N]U=nn U", "[NI]=nn I", "[NE]=nn E"
],
'O': [
"[O]=O", "[OR]=O rr", "[ON]=O nn", "[OM]=O mm", "[OS]=O ss"
],
'P': [
" [P]=pp", "[P]A=pp aa", "[P]O=pp O", "[P]U=pp U", "[PI]=pp I", "[PE]=pp E"
],
'Q': [
" [Q]=kw", "[Q]A=kw aa", "[Q]O=kw O", "[Q]U=kw U", "[QI]=kw I", "[QE]=kw E"
],
'R': [
" [R]=rr", "[R]A=rr aa", "[R]O=rr O", "[R]U=rr U", "[RI]=rr I", "[RE]=rr E"
],
'S': [
" [S]=ss", "[S]A=ss aa", "[S]O=ss O", "[S]U=ss U", "[SI]=ss I", "[SE]=ss E"
],
'T': [
" [T]=tt", "[T]A=tt aa", "[T]O=tt O", "[T]U=tt U", "[TI]=tt I", "[TE]=tt E"
],
'U': [
"[U]=U", "[UN]=U nn", "[UM]=U mm", "[UR]=U rr", "[US]=U ss"
],
'V': [
" [V]=vv", "[V]A=vv aa", "[V]O=vv O", "[V]U=vv U", "[VI]=vv I", "[VE]=vv E"
],
'Z': [
" [Z]=zz", "[Z]A=zz aa", "[Z]O=zz O", "[Z]U=zz U", "[ZI]=zz I", "[ZE]=zz E"
]
};

const ops = {
'#': '[AEIOUY]+', // One or more vowels AEIOUY
'.': '[BDVGJLMNRWZ]', // One voiced consonant BDVGJLMNRWZ
'%': '(?:ER|E|ES|ED|ING|ELY)', // One of ER, E, ES, ED, ING, ELY
'&': '(?:[SCGZXJ]|CH|SH)', // One of S, C, G, Z, X, J, CH, SH
'@': '(?:[TSRDLZNJ]|TH|CH|SH)', // One of T, S, R, D, L, Z, N, J, TH, CH, SH
'^': '[BCDFGHJKLMNPQRSTVWXZ]', // One consonant BCDFGHJKLMNPQRSTVWXZ
'+': '[EIY]', // One of E, I, Y
':': '[BCDFGHJKLMNPQRSTVWXZ]*', // Zero or more consonants BCDFGHJKLMNPQRSTVWXZ
' ': '\\b' // Start/end of the word
};

Object.keys(this.rules).forEach(key => {
this.rules[key] = this.rules[key].map(rule => {
const posL = rule.indexOf('[');
const posR = rule.indexOf(']');
const posE = rule.indexOf('=');
const strLeft = rule.substring(0, posL);
const strLetters = rule.substring(posL + 1, posR);
const strRight = rule.substring(posR + 1, posE);
const strVisemes = rule.substring(posE + 1);

const o = { regex: '', move: 0, visemes: [] };

let exp = '';
exp += [...strLeft].map(x => ops[x] || x).join('');
const ctxLetters = [...strLetters];
ctxLetters[0] = ctxLetters[0].toLowerCase();
exp += ctxLetters.join('');
o.move = ctxLetters.length;
exp += [...strRight].map(x => ops[x] || x).join('');
o.regex = new RegExp(exp);

if (strVisemes.length) {
strVisemes.split(' ').forEach(viseme => {
o.visemes.push(viseme);
});
}

return o;
});
});

this.visemeDurations = {
'aa': 0.95, 'E': 0.90, 'I': 0.92, 'O': 0.96, 'U': 0.95, 'PP': 1.08,
'SS': 1.23, 'TH': 1, 'DD': 1.05, 'FF': 1.00, 'kk': 1.21, 'nn': 0.88,
'RR': 0.88, 'DD': 1.05, 'sil': 1
};

this.specialDurations = { ' ': 1, ',': 3, '-': 0.5, "'": 0.5 };

this.digits = ['zero', 'uno', 'due', 'tre', 'quattro', 'cinque', 'sei', 'sette', 'otto', 'nove'];
this.ones = ['', 'uno', 'due', 'tre', 'quattro', 'cinque', 'sei', 'sette', 'otto', 'nove'];
this.tens = ['', '', 'venti', 'trenta', 'quaranta', 'cinquanta', 'sessanta', 'settanta', 'ottanta', 'novanta'];
this.teens = ['dieci', 'undici', 'dodici', 'tredici', 'quattordici', 'quindici', 'sedici', 'diciassette', 'diciotto', 'diciannove'];

this.symbols = {
'%': 'percento', '€': 'euro', '&': 'e', '+': 'più', '$': 'dollari', '-': 'meno', '/': 'diviso', '*': 'per', ':': 'due punti', ';': 'punto e virgola'
};
this.symbolsReg = /[%€&\+\$]/g;
}

convert_digit_by_digit(num) {
num = String(num).split("");
let numWords = "";
for (let m = 0; m < num.length; m++) {
numWords += this.digits[num[m]] + " ";
}
numWords = numWords.substring(0, numWords.length - 1);
return numWords;
}

convert_sets_of_two(num) {
let firstNumHalf = String(num).substring(0, 2);
let secondNumHalf = String(num).substring(2, 4);
let numWords = this.convert_tens(firstNumHalf);
numWords += " " + this.convert_tens(secondNumHalf);
return numWords;
}

convert_millions(num) {
if (num >= 1000000) {
return this.convert_millions(Math.floor(num / 1000000)) + " milioni " + this.convert_thousands(num % 1000000);
} else {
return this.convert_thousands(num);
}
}

convert_thousands(num) {
if (num >= 1000) {
return this.convert_hundreds(Math.floor(num / 1000)) + " mila " + this.convert_hundreds(num % 1000);
} else {
return this.convert_hundreds(num);
}
}

convert_hundreds(num) {
if (num > 99) {
return this.ones[Math.floor(num / 100)] + " cento " + this.convert_tens(num % 100);
} else {
return this.convert_tens(num);
}
}

convert_tens(num) {
if (num < 10) return this.ones[num];
else if (num >= 10 && num < 20) {
return this.teens[num - 10];
} else {
return this.tens[Math.floor(num / 10)] + " " + this.ones[num % 10];
}
}

convertNumberToWords(num) {
if (num == 0) {
return "zero";
} else if ((num < 1000 && num > 99) || (num > 10000 && num < 1000000)) {
return this.convert_digit_by_digit(num);
} else if ((num > 1000 && num < 2000) || (num > 2009 && num < 3000)) {
return this.convert_sets_of_two(num);
} else {
return this.convert_millions(num);
}
}

/**
* Preprocess text:
* - convert symbols to words
* - convert numbers to words
* - filter out characters that should be left unspoken
* @param {string} s Text
* @return {string} Pre-processsed text.
*/
preProcessText(s) {
return s.replace('/[#_*\":;]/g', '')
.replace(this.symbolsReg, (symbol) => {
return ' ' + this.symbols[symbol] + ' ';
})
.replace(/(\d)\,(\d)/g, '$1 punto $2') // Number separator
.replace(/\d+/g, this.convertNumberToWords.bind(this)) // Numbers to words
.replace(/(\D)\1\1+/g, "$1$1") // max 2 repeating chars
.replaceAll(' ', ' ') // Only one repeating space
.normalize('NFD').replace(/[\u0300-\u036f]/g, '').normalize('NFC') // Remove non-Italian diacritics
.trim();
}

/**
* Convert word to Oculus LipSync Visemes and durations
* @param {string} w Text
* @return {Object} Oculus LipSync Visemes and durations.
*/
wordsToVisemes(w) {
let o = { words: w.toUpperCase(), visemes: [], times: [], durations: [], i: 0 };
let t = 0;

const chars = [...o.words];
while (o.i < chars.length) {
const c = chars[o.i];
const ruleset = this.rules[c];
if (ruleset) {
for (let i = 0; i < ruleset.length; i++) {
const rule = ruleset[i];
const test = o.words.substring(0, o.i) + c.toLowerCase() + o.words.substring(o.i + 1);
let matches = test.match(rule.regex);
if (matches) {
rule.visemes.forEach(viseme => {
if (o.visemes.length && o.visemes[o.visemes.length - 1] === viseme) {
const d = 0.7 * (this.visemeDurations[viseme] || 1);
o.durations[o.durations.length - 1] += d;
t += d;
} else {
const d = this.visemeDurations[viseme] || 1;
o.visemes.push(viseme);
o.times.push(t);
o.durations.push(d);
t += d;
}
})
o.i += rule.move;
break;
}
}
} else {
o.i++;
t += this.specialDurations[c] || 0;
}
}

return o;
}

}

export { LipsyncIt };
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