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import re |
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import unicodedata |
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import pyopenjtalk |
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from num2words import num2words |
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from transformers import AutoTokenizer |
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from common.log import logger |
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from text import punctuation |
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from text.japanese_mora_list import ( |
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mora_kata_to_mora_phonemes, |
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mora_phonemes_to_mora_kata, |
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) |
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COSONANTS = set( |
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[ |
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cosonant |
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for cosonant, _ in mora_kata_to_mora_phonemes.values() |
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if cosonant is not None |
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] |
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) |
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VOWELS = {"a", "i", "u", "e", "o"} |
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rep_map = { |
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":": ",", |
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";": ",", |
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",": ",", |
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"。": ".", |
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"!": "!", |
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"?": "?", |
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"\n": ".", |
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".": ".", |
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"…": "...", |
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"···": "...", |
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"・・・": "...", |
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"·": ",", |
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"・": ",", |
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"、": ",", |
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"$": ".", |
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"“": "'", |
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"”": "'", |
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'"': "'", |
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"‘": "'", |
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"’": "'", |
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"(": "'", |
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")": "'", |
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"(": "'", |
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")": "'", |
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"《": "'", |
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"》": "'", |
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"【": "'", |
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"】": "'", |
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"[": "'", |
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"]": "'", |
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"—": "-", |
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"−": "-", |
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"~": "-", |
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"「": "'", |
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"」": "'", |
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} |
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def text_normalize(text): |
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""" |
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日本語のテキストを正規化する。 |
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結果は、ちょうど次の文字のみからなる: |
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- ひらがな |
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- カタカナ(全角長音記号「ー」が入る!) |
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- 漢字 |
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- 半角アルファベット(大文字と小文字) |
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- ギリシャ文字 |
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- `.` (句点`。`や`…`の一部や改行等) |
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- `,` (読点`、`や`:`等) |
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- `?` (疑問符`?`) |
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- `!` (感嘆符`!`) |
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- `'` (`「`や`」`等) |
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- `-` (`―`(ダッシュ、長音記号ではない)や`-`等) |
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注意点: |
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- 三点リーダー`…`は`...`に変換される(`なるほど…。` → `なるほど....`) |
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- 数字は漢字に変換される(`1,100円` → `千百円`、`52.34` → `五十二点三四`) |
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- 読点や疑問符等の位置・個数等は保持される(`??あ、、!!!` → `??あ,,!!!`) |
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""" |
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res = unicodedata.normalize("NFKC", text) |
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res = japanese_convert_numbers_to_words(res) |
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res = res.replace("~", "ー") |
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res = res.replace("~", "ー") |
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res = replace_punctuation(res) |
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res = res.replace("\u3099", "") |
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res = res.replace("\u309A", "") |
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return res |
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def replace_punctuation(text: str) -> str: |
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"""句読点等を「.」「,」「!」「?」「'」「-」に正規化し、OpenJTalkで読みが取得できるもののみ残す: |
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漢字・平仮名・カタカナ、アルファベット、ギリシャ文字 |
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""" |
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pattern = re.compile("|".join(re.escape(p) for p in rep_map.keys())) |
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replaced_text = pattern.sub(lambda x: rep_map[x.group()], text) |
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replaced_text = re.sub( |
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r"[^\u3040-\u309F\u30A0-\u30FF\u4E00-\u9FFF\u3400-\u4DBF\u3005" |
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+ r"\u0041-\u005A\u0061-\u007A" |
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+ r"\uFF21-\uFF3A\uFF41-\uFF5A" |
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+ r"\u0370-\u03FF\u1F00-\u1FFF" |
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+ "".join(punctuation) + r"]+", |
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"", |
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replaced_text, |
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) |
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return replaced_text |
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_NUMBER_WITH_SEPARATOR_RX = re.compile("[0-9]{1,3}(,[0-9]{3})+") |
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_CURRENCY_MAP = {"$": "ドル", "¥": "円", "£": "ポンド", "€": "ユーロ"} |
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_CURRENCY_RX = re.compile(r"([$¥£€])([0-9.]*[0-9])") |
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_NUMBER_RX = re.compile(r"[0-9]+(\.[0-9]+)?") |
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def japanese_convert_numbers_to_words(text: str) -> str: |
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res = _NUMBER_WITH_SEPARATOR_RX.sub(lambda m: m[0].replace(",", ""), text) |
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res = _CURRENCY_RX.sub(lambda m: m[2] + _CURRENCY_MAP.get(m[1], m[1]), res) |
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res = _NUMBER_RX.sub(lambda m: num2words(m[0], lang="ja"), res) |
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return res |
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def g2p(norm_text: str) -> tuple[list[str], list[int], list[int]]: |
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""" |
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他で使われるメインの関数。`text_normalize()`で正規化された`norm_text`を受け取り、 |
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- phones: 音素のリスト(ただし`!`や`,`や`.`等punctuationが含まれうる) |
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- tones: アクセントのリスト、0(低)と1(高)からなり、phonesと同じ長さ |
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- word2ph: 元のテキストの各文字に音素が何個割り当てられるかを表すリスト |
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のタプルを返す。 |
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ただし`phones`と`tones`の最初と終わりに`_`が入り、応じて`word2ph`の最初と最後に1が追加される。 |
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""" |
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phone_tone_list_wo_punct = g2phone_tone_wo_punct(norm_text) |
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sep_text, sep_kata = text2sep_kata(norm_text) |
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sep_phonemes = handle_long([kata2phoneme_list(i) for i in sep_kata]) |
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phone_w_punct: list[str] = [] |
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for i in sep_phonemes: |
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phone_w_punct += i |
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phone_tone_list = align_tones(phone_w_punct, phone_tone_list_wo_punct) |
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sep_tokenized: list[list[str]] = [] |
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for i in sep_text: |
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if i not in punctuation: |
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sep_tokenized.append(tokenizer.tokenize(i)) |
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else: |
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sep_tokenized.append([i]) |
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word2ph = [] |
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for token, phoneme in zip(sep_tokenized, sep_phonemes): |
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phone_len = len(phoneme) |
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word_len = len(token) |
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word2ph += distribute_phone(phone_len, word_len) |
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phone_tone_list = [("_", 0)] + phone_tone_list + [("_", 0)] |
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word2ph = [1] + word2ph + [1] |
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phones = [phone for phone, _ in phone_tone_list] |
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tones = [tone for _, tone in phone_tone_list] |
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assert len(phones) == sum(word2ph), f"{len(phones)} != {sum(word2ph)}" |
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return phones, tones, word2ph |
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def g2kata_tone(norm_text: str) -> list[tuple[str, int]]: |
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phones, tones, _ = g2p(norm_text) |
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return phone_tone2kata_tone(list(zip(phones, tones))) |
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def phone_tone2kata_tone(phone_tone: list[tuple[str, int]]) -> list[tuple[str, int]]: |
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"""phone_toneをのphone部分をカタカナに変換する。ただし最初と最後の("_", 0)は無視""" |
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phone_tone = phone_tone[1:] |
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phones = [phone for phone, _ in phone_tone] |
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tones = [tone for _, tone in phone_tone] |
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result: list[tuple[str, int]] = [] |
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current_mora = "" |
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for phone, next_phone, tone, next_tone in zip(phones, phones[1:], tones, tones[1:]): |
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if phone in punctuation: |
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result.append((phone, tone)) |
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continue |
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if phone in COSONANTS and phone != "n": |
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assert current_mora == "", f"Unexpected {phone} after {current_mora}" |
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assert tone == next_tone, f"Unexpected {phone} tone {tone} != {next_tone}" |
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current_mora = phone |
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elif phone == "n": |
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assert current_mora == "", f"Unexpected {phone} after {current_mora}" |
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if next_phone not in VOWELS: |
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result.append(("ン", tone)) |
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else: |
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assert ( |
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tone == next_tone |
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), f"Unexpected {phone} tone {tone} != {next_tone}" |
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current_mora = "n" |
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else: |
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current_mora += phone |
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result.append((mora_phonemes_to_mora_kata[current_mora], tone)) |
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current_mora = "" |
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return result |
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def kata_tone2phone_tone(kata_tone: list[tuple[str, int]]) -> list[tuple[str, int]]: |
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"""`phone_tone2kata_tone()`の逆。""" |
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result: list[tuple[str, int]] = [("_", 0)] |
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for mora, tone in kata_tone: |
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if mora in punctuation: |
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result.append((mora, tone)) |
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else: |
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cosonant, vowel = mora_kata_to_mora_phonemes[mora] |
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if cosonant is None: |
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result.append((vowel, tone)) |
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else: |
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result.append((cosonant, tone)) |
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result.append((vowel, tone)) |
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result.append(("_", 0)) |
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return result |
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def g2phone_tone_wo_punct(text: str) -> list[tuple[str, int]]: |
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""" |
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テキストに対して、音素とアクセント(0か1)のペアのリストを返す。 |
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ただし「!」「.」「?」等の非音素記号(punctuation)は全て消える(ポーズ記号も残さない)。 |
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非音素記号を含める処理は`align_tones()`で行われる。 |
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また「っ」は「q」に、「ん」は「n」に変換される。 |
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例: "こんにちは、世界ー。。元気?!" → |
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[('k', 0), ('o', 0), ('n', 1), ('n', 1), ('i', 1), ('ch', 1), ('i', 1), ('w', 1), ('a', 1), ('s', 1), ('e', 1), ('k', 0), ('a', 0), ('i', 0), ('i', 0), ('g', 1), ('e', 1), ('n', 0), ('k', 0), ('i', 0)] |
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""" |
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prosodies = pyopenjtalk_g2p_prosody(text, drop_unvoiced_vowels=True) |
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result: list[tuple[str, int]] = [] |
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current_phrase: list[tuple[str, int]] = [] |
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current_tone = 0 |
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for i, letter in enumerate(prosodies): |
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if letter == "^": |
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assert i == 0, "Unexpected ^" |
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elif letter in ("$", "?", "_", "#"): |
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result.extend(fix_phone_tone(current_phrase)) |
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if letter in ("$", "?"): |
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assert i == len(prosodies) - 1, f"Unexpected {letter}" |
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current_phrase = [] |
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current_tone = 0 |
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elif letter == "[": |
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current_tone = current_tone + 1 |
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elif letter == "]": |
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current_tone = current_tone - 1 |
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else: |
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if letter == "cl": |
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letter = "q" |
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elif letter == "N": |
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letter = "n" |
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current_phrase.append((letter, current_tone)) |
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return result |
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def text2sep_kata(norm_text: str) -> tuple[list[str], list[str]]: |
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""" |
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`text_normalize`で正規化済みの`norm_text`を受け取り、それを単語分割し、 |
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分割された単語リストとその読み(カタカナor記号1文字)のリストのタプルを返す。 |
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単語分割結果は、`g2p()`の`word2ph`で1文字あたりに割り振る音素記号の数を決めるために使う。 |
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例: |
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`私はそう思う!って感じ?` → |
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["私", "は", "そう", "思う", "!", "って", "感じ", "?"], ["ワタシ", "ワ", "ソー", "オモウ", "!", "ッテ", "カンジ", "?"] |
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""" |
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parsed = pyopenjtalk.run_frontend(norm_text) |
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sep_text: list[str] = [] |
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sep_kata: list[str] = [] |
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for parts in parsed: |
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word, yomi = replace_punctuation(parts["string"]), parts["pron"].replace( |
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"’", "" |
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) |
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""" |
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ここで`yomi`の取りうる値は以下の通りのはず。 |
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- `word`が通常単語 → 通常の読み(カタカナ) |
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(カタカナからなり、長音記号も含みうる、`アー` 等) |
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- `word`が`ー` から始まる → `ーラー` や `ーーー` など |
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- `word`が句読点や空白等 → `、` |
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- `word`が`?` → `?`(全角になる) |
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他にも`word`が読めないキリル文字アラビア文字等が来ると`、`になるが、正規化でこの場合は起きないはず。 |
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また元のコードでは`yomi`が空白の場合の処理があったが、これは起きないはず。 |
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処理すべきは`yomi`が`、`の場合のみのはず。 |
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""" |
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assert yomi != "", f"Empty yomi: {word}" |
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if yomi == "、": |
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if word not in ( |
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".", |
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",", |
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"!", |
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"'", |
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"-", |
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): |
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raise ValueError(f"Cannot read: {word} in:\n{norm_text}") |
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yomi = word |
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elif yomi == "?": |
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assert word == "?", f"yomi `?` comes from: {word}" |
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yomi = "?" |
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sep_text.append(word) |
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sep_kata.append(yomi) |
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return sep_text, sep_kata |
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def pyopenjtalk_g2p_prosody(text: str, drop_unvoiced_vowels: bool = True) -> list[str]: |
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"""Extract phoneme + prosoody symbol sequence from input full-context labels. |
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The algorithm is based on `Prosodic features control by symbols as input of |
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sequence-to-sequence acoustic modeling for neural TTS`_ with some r9y9's tweaks. |
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Args: |
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text (str): Input text. |
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drop_unvoiced_vowels (bool): whether to drop unvoiced vowels. |
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Returns: |
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List[str]: List of phoneme + prosody symbols. |
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Examples: |
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>>> from espnet2.text.phoneme_tokenizer import pyopenjtalk_g2p_prosody |
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>>> pyopenjtalk_g2p_prosody("こんにちは。") |
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['^', 'k', 'o', '[', 'N', 'n', 'i', 'ch', 'i', 'w', 'a', '$'] |
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.. _`Prosodic features control by symbols as input of sequence-to-sequence acoustic |
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modeling for neural TTS`: https://doi.org/10.1587/transinf.2020EDP7104 |
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""" |
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labels = pyopenjtalk.make_label(pyopenjtalk.run_frontend(text)) |
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N = len(labels) |
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phones = [] |
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for n in range(N): |
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lab_curr = labels[n] |
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p3 = re.search(r"\-(.*?)\+", lab_curr).group(1) |
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if drop_unvoiced_vowels and p3 in "AEIOU": |
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p3 = p3.lower() |
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if p3 == "sil": |
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assert n == 0 or n == N - 1 |
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if n == 0: |
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phones.append("^") |
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elif n == N - 1: |
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e3 = _numeric_feature_by_regex(r"!(\d+)_", lab_curr) |
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if e3 == 0: |
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phones.append("$") |
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elif e3 == 1: |
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phones.append("?") |
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continue |
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elif p3 == "pau": |
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phones.append("_") |
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continue |
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else: |
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phones.append(p3) |
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a1 = _numeric_feature_by_regex(r"/A:([0-9\-]+)\+", lab_curr) |
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a2 = _numeric_feature_by_regex(r"\+(\d+)\+", lab_curr) |
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a3 = _numeric_feature_by_regex(r"\+(\d+)/", lab_curr) |
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f1 = _numeric_feature_by_regex(r"/F:(\d+)_", lab_curr) |
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a2_next = _numeric_feature_by_regex(r"\+(\d+)\+", labels[n + 1]) |
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if a3 == 1 and a2_next == 1 and p3 in "aeiouAEIOUNcl": |
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phones.append("#") |
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elif a1 == 0 and a2_next == a2 + 1 and a2 != f1: |
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phones.append("]") |
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elif a2 == 1 and a2_next == 2: |
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phones.append("[") |
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return phones |
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def _numeric_feature_by_regex(regex, s): |
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match = re.search(regex, s) |
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if match is None: |
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return -50 |
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return int(match.group(1)) |
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def fix_phone_tone(phone_tone_list: list[tuple[str, int]]) -> list[tuple[str, int]]: |
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""" |
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`phone_tone_list`のtone(アクセントの値)を0か1の範囲に修正する。 |
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例: [(a, 0), (i, -1), (u, -1)] → [(a, 1), (i, 0), (u, 0)] |
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""" |
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tone_values = set(tone for _, tone in phone_tone_list) |
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if len(tone_values) == 1: |
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assert tone_values == {0}, tone_values |
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return phone_tone_list |
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elif len(tone_values) == 2: |
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if tone_values == {0, 1}: |
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return phone_tone_list |
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elif tone_values == {-1, 0}: |
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return [ |
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(letter, 0 if tone == -1 else 1) for letter, tone in phone_tone_list |
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] |
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else: |
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raise ValueError(f"Unexpected tone values: {tone_values}") |
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else: |
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raise ValueError(f"Unexpected tone values: {tone_values}") |
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def distribute_phone(n_phone: int, n_word: int) -> list[int]: |
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""" |
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左から右に1ずつ振り分け、次にまた左から右に1ずつ増やし、というふうに、 |
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音素の数`n_phone`を単語の数`n_word`に分配する。 |
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""" |
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phones_per_word = [0] * n_word |
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for _ in range(n_phone): |
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min_tasks = min(phones_per_word) |
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min_index = phones_per_word.index(min_tasks) |
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phones_per_word[min_index] += 1 |
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return phones_per_word |
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def handle_long(sep_phonemes: list[list[str]]) -> list[list[str]]: |
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for i in range(len(sep_phonemes)): |
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if sep_phonemes[i][0] == "ー": |
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sep_phonemes[i][0] = sep_phonemes[i - 1][-1] |
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if "ー" in sep_phonemes[i]: |
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for j in range(len(sep_phonemes[i])): |
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if sep_phonemes[i][j] == "ー": |
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sep_phonemes[i][j] = sep_phonemes[i][j - 1][-1] |
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return sep_phonemes |
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tokenizer = AutoTokenizer.from_pretrained("./bert/deberta-v2-large-japanese-char-wwm") |
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def align_tones( |
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phones_with_punct: list[str], phone_tone_list: list[tuple[str, int]] |
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) -> list[tuple[str, int]]: |
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""" |
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例: |
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…私は、、そう思う。 |
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phones_with_punct: |
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[".", ".", ".", "w", "a", "t", "a", "sh", "i", "w", "a", ",", ",", "s", "o", "o", "o", "m", "o", "u", "."] |
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phone_tone_list: |
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[("w", 0), ("a", 0), ("t", 1), ("a", 1), ("sh", 1), ("i", 1), ("w", 1), ("a", 1), ("_", 0), ("s", 0), ("o", 0), ("o", 1), ("o", 1), ("m", 1), ("o", 1), ("u", 0))] |
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Return: |
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[(".", 0), (".", 0), (".", 0), ("w", 0), ("a", 0), ("t", 1), ("a", 1), ("sh", 1), ("i", 1), ("w", 1), ("a", 1), (",", 0), (",", 0), ("s", 0), ("o", 0), ("o", 1), ("o", 1), ("m", 1), ("o", 1), ("u", 0), (".", 0)] |
|
""" |
|
result: list[tuple[str, int]] = [] |
|
tone_index = 0 |
|
for phone in phones_with_punct: |
|
if tone_index >= len(phone_tone_list): |
|
|
|
result.append((phone, 0)) |
|
elif phone == phone_tone_list[tone_index][0]: |
|
|
|
result.append((phone, phone_tone_list[tone_index][1])) |
|
|
|
tone_index += 1 |
|
elif phone in punctuation: |
|
|
|
result.append((phone, 0)) |
|
else: |
|
logger.debug(f"phones: {phones_with_punct}") |
|
logger.debug(f"phone_tone_list: {phone_tone_list}") |
|
logger.debug(f"result: {result}") |
|
logger.debug(f"tone_index: {tone_index}") |
|
logger.debug(f"phone: {phone}") |
|
raise ValueError(f"Unexpected phone: {phone}") |
|
return result |
|
|
|
|
|
def kata2phoneme_list(text: str) -> list[str]: |
|
""" |
|
原則カタカナの`text`を受け取り、それをそのままいじらずに音素記号のリストに変換。 |
|
注意点: |
|
- punctuationが来た場合(punctuationが1文字の場合がありうる)、処理せず1文字のリストを返す |
|
- 冒頭に続く「ー」はそのまま「ー」のままにする(`handle_long()`で処理される) |
|
- 文中の「ー」は前の音素記号の最後の音素記号に変換される。 |
|
例: |
|
`ーーソーナノカーー` → ["ー", "ー", "s", "o", "o", "n", "a", "n", "o", "k", "a", "a", "a"] |
|
`?` → ["?"] |
|
""" |
|
if text in punctuation: |
|
return [text] |
|
|
|
if re.fullmatch(r"[\u30A0-\u30FF]+", text) is None: |
|
raise ValueError(f"Input must be katakana only: {text}") |
|
sorted_keys = sorted(mora_kata_to_mora_phonemes.keys(), key=len, reverse=True) |
|
pattern = "|".join(map(re.escape, sorted_keys)) |
|
|
|
def mora2phonemes(mora: str) -> str: |
|
cosonant, vowel = mora_kata_to_mora_phonemes[mora] |
|
if cosonant is None: |
|
return f" {vowel}" |
|
return f" {cosonant} {vowel}" |
|
|
|
spaced_phonemes = re.sub(pattern, lambda m: mora2phonemes(m.group()), text) |
|
|
|
|
|
long_pattern = r"(\w)(ー*)" |
|
long_replacement = lambda m: m.group(1) + (" " + m.group(1)) * len(m.group(2)) |
|
spaced_phonemes = re.sub(long_pattern, long_replacement, spaced_phonemes) |
|
return spaced_phonemes.strip().split(" ") |
|
|
|
|
|
if __name__ == "__main__": |
|
tokenizer = AutoTokenizer.from_pretrained("./bert/deberta-v2-large-japanese") |
|
text = "hello,こんにちは、世界ー!……" |
|
from text.japanese_bert import get_bert_feature |
|
|
|
text = text_normalize(text) |
|
print(text) |
|
|
|
phones, tones, word2ph = g2p(text) |
|
bert = get_bert_feature(text, word2ph) |
|
|
|
print(phones, tones, word2ph, bert.shape) |
|
|