diff --git a/examples/pipeline_tacotron2/text/__init__.py b/examples/pipeline_tacotron2/text/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/examples/pipeline_tacotron2/text/numbers.py b/examples/pipeline_tacotron2/text/numbers.py
new file mode 100644
index 0000000000..3a0b141dd0
--- /dev/null
+++ b/examples/pipeline_tacotron2/text/numbers.py
@@ -0,0 +1,95 @@
+# *****************************************************************************
+# Copyright (c) 2017 Keith Ito
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+# *****************************************************************************
+"""
+Modified from https://github.com/keithito/tacotron
+"""
+
+import inflect
+import re
+
+
+_inflect = inflect.engine()
+_comma_number_re = re.compile(r'([0-9][0-9\,]+[0-9])')
+_decimal_number_re = re.compile(r'([0-9]+\.[0-9]+)')
+_pounds_re = re.compile(r'£([0-9\,]*[0-9]+)')
+_dollars_re = re.compile(r'\$([0-9\.\,]*[0-9]+)')
+_ordinal_re = re.compile(r'[0-9]+(st|nd|rd|th)')
+_number_re = re.compile(r'[0-9]+')
+
+
+def _remove_commas(m: re.Match) -> str:
+ return m.group(1).replace(',', '')
+
+
+def _expand_decimal_point(m: re.Match) -> str:
+ return m.group(1).replace('.', ' point ')
+
+
+def _expand_dollars(m: re.Match) -> str:
+ match = m.group(1)
+ parts = match.split('.')
+ if len(parts) > 2:
+ return match + ' dollars' # Unexpected format
+ dollars = int(parts[0]) if parts[0] else 0
+ cents = int(parts[1]) if len(parts) > 1 and parts[1] else 0
+ if dollars and cents:
+ dollar_unit = 'dollar' if dollars == 1 else 'dollars'
+ cent_unit = 'cent' if cents == 1 else 'cents'
+ return '%s %s, %s %s' % (dollars, dollar_unit, cents, cent_unit)
+ elif dollars:
+ dollar_unit = 'dollar' if dollars == 1 else 'dollars'
+ return '%s %s' % (dollars, dollar_unit)
+ elif cents:
+ cent_unit = 'cent' if cents == 1 else 'cents'
+ return '%s %s' % (cents, cent_unit)
+ else:
+ return 'zero dollars'
+
+
+def _expand_ordinal(m: re.Match) -> str:
+ return _inflect.number_to_words(m.group(0))
+
+
+def _expand_number(m: re.Match) -> str:
+ num = int(m.group(0))
+ if num > 1000 and num < 3000:
+ if num == 2000:
+ return 'two thousand'
+ elif num > 2000 and num < 2010:
+ return 'two thousand ' + _inflect.number_to_words(num % 100)
+ elif num % 100 == 0:
+ return _inflect.number_to_words(num // 100) + ' hundred'
+ else:
+ return _inflect.number_to_words(num, andword='', zero='oh', group=2).replace(', ', ' ')
+ else:
+ return _inflect.number_to_words(num, andword='')
+
+
+def normalize_numbers(text: str) -> str:
+ text = re.sub(_comma_number_re, _remove_commas, text)
+ text = re.sub(_pounds_re, r'\1 pounds', text)
+ text = re.sub(_dollars_re, _expand_dollars, text)
+ text = re.sub(_decimal_number_re, _expand_decimal_point, text)
+ text = re.sub(_ordinal_re, _expand_ordinal, text)
+ text = re.sub(_number_re, _expand_number, text)
+ return text
diff --git a/examples/pipeline_tacotron2/text/test_text.py b/examples/pipeline_tacotron2/text/test_text.py
new file mode 100644
index 0000000000..61ff451668
--- /dev/null
+++ b/examples/pipeline_tacotron2/text/test_text.py
@@ -0,0 +1,22 @@
+import unittest
+
+from parameterized import parameterized
+
+from .text_preprocessing import text_to_sequence
+
+
+class TestTextPreprocessor(unittest.TestCase):
+
+ @parameterized.expand(
+ [
+ ["dr. Strange?", [15, 26, 14, 31, 26, 29, 11, 30, 31, 29, 12, 25, 18, 16, 10]],
+ ["ML, is fun.", [24, 23, 6, 11, 20, 30, 11, 17, 32, 25, 7]],
+ ["I love torchaudio!", [20, 11, 23, 26, 33, 16, 11, 31, 26, 29, 14, 19, 12, 32, 15, 20, 26, 2]],
+ # 'one thousand dollars, twenty cents'
+ ["$1,000.20", [26, 25, 16, 11, 31, 19, 26, 32, 30, 12, 25, 15, 11, 15, 26, 23, 23,
+ 12, 29, 30, 6, 11, 31, 34, 16, 25, 31, 36, 11, 14, 16, 25, 31, 30]],
+ ]
+ )
+ def test_text_to_sequence(self, sent, seq):
+
+ assert (text_to_sequence(sent) == seq)
diff --git a/examples/pipeline_tacotron2/text/text_preprocessing.py b/examples/pipeline_tacotron2/text/text_preprocessing.py
new file mode 100644
index 0000000000..cd8bc622d6
--- /dev/null
+++ b/examples/pipeline_tacotron2/text/text_preprocessing.py
@@ -0,0 +1,85 @@
+# *****************************************************************************
+# Copyright (c) 2017 Keith Ito
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+# *****************************************************************************
+"""
+Modified from https://github.com/keithito/tacotron
+"""
+
+from typing import List
+import re
+
+from unidecode import unidecode
+
+from .numbers import normalize_numbers
+
+
+# Regular expression matching whitespace:
+_whitespace_re = re.compile(r'\s+')
+
+# List of (regular expression, replacement) pairs for abbreviations:
+_abbreviations = [(re.compile('\\b%s\\.' % x[0], re.IGNORECASE), x[1]) for x in [
+ ('mrs', 'misess'),
+ ('mr', 'mister'),
+ ('dr', 'doctor'),
+ ('st', 'saint'),
+ ('co', 'company'),
+ ('jr', 'junior'),
+ ('maj', 'major'),
+ ('gen', 'general'),
+ ('drs', 'doctors'),
+ ('rev', 'reverend'),
+ ('lt', 'lieutenant'),
+ ('hon', 'honorable'),
+ ('sgt', 'sergeant'),
+ ('capt', 'captain'),
+ ('esq', 'esquire'),
+ ('ltd', 'limited'),
+ ('col', 'colonel'),
+ ('ft', 'fort'),
+]]
+
+_pad = '_'
+_punctuation = '!\'(),.:;? '
+_special = '-'
+_letters = 'abcdefghijklmnopqrstuvwxyz'
+
+symbols = [_pad] + list(_special) + list(_punctuation) + list(_letters)
+_symbol_to_id = {s: i for i, s in enumerate(symbols)}
+
+
+def text_to_sequence(sent: str) -> List[int]:
+ r'''Converts a string of text to a sequence of IDs corresponding to the symbols in the text.
+
+ Args:
+ sent (str): The input sentence to convert to a sequence.
+
+ Returns:
+ List of integers corresponding to the symbols in the sentence.
+ '''
+ sent = unidecode(sent) # convert to ascii
+ sent = sent.lower() # lower case
+ sent = normalize_numbers(sent) # expand numbers
+ for regex, replacement in _abbreviations: # expand abbreviations
+ sent = re.sub(regex, replacement, sent)
+ sent = re.sub(_whitespace_re, ' ', sent) # collapse whitespace
+
+ return [_symbol_to_id[s] for s in sent if s in _symbol_to_id]