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# Copyright (c) 2023 Amphion.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
""" This code is modified from https://github.com/keithito/tacotron """
"""
Defines the set of symbols used in text input to the model.
The default is a set of ASCII characters that works well for English or text that has been run through Unidecode. For other data, you can modify _characters. See TRAINING_DATA.md for details. """
from text import cmudict, pinyin
_pad = "_"
_punctuation = "!'(),.:;? "
_special = "-"
_letters = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
_silences = ["@sp", "@spn", "@sil"]
# Prepend "@" to ARPAbet symbols to ensure uniqueness (some are the same as uppercase letters):
_arpabet = ["@" + s for s in cmudict.valid_symbols]
_pinyin = ["@" + s for s in pinyin.valid_symbols]
# Export all symbols:
symbols = (
[_pad]
+ list(_special)
+ list(_punctuation)
+ list(_letters)
+ _arpabet
+ _silences
# + _pinyin # for chinese
)
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