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""" from https://github.com/keithito/tacotron """
import re
import sys
import urllib.request
from pathlib import Path
valid_symbols = [
'AA', 'AA0', 'AA1', 'AA2', 'AE', 'AE0', 'AE1', 'AE2', 'AH', 'AH0', 'AH1', 'AH2',
'AO', 'AO0', 'AO1', 'AO2', 'AW', 'AW0', 'AW1', 'AW2', 'AY', 'AY0', 'AY1', 'AY2',
'B', 'CH', 'D', 'DH', 'EH', 'EH0', 'EH1', 'EH2', 'ER', 'ER0', 'ER1', 'ER2', 'EY',
'EY0', 'EY1', 'EY2', 'F', 'G', 'HH', 'IH', 'IH0', 'IH1', 'IH2', 'IY', 'IY0', 'IY1',
'IY2', 'JH', 'K', 'L', 'M', 'N', 'NG', 'OW', 'OW0', 'OW1', 'OW2', 'OY', 'OY0',
'OY1', 'OY2', 'P', 'R', 'S', 'SH', 'T', 'TH', 'UH', 'UH0', 'UH1', 'UH2', 'UW',
'UW0', 'UW1', 'UW2', 'V', 'W', 'Y', 'Z', 'ZH'
]
_valid_symbol_set = set(valid_symbols)
class CMUDict:
'''Thin wrapper around CMUDict data. http://www.speech.cs.cmu.edu/cgi-bin/cmudict'''
def __init__(self, file_or_path=None, heteronyms_path=None, keep_ambiguous=True):
self._entries = {}
self.heteronyms = []
if file_or_path is not None:
self.initialize(file_or_path, heteronyms_path, keep_ambiguous)
def initialize(self, file_or_path, heteronyms_path, keep_ambiguous=True):
if isinstance(file_or_path, str):
if not Path(file_or_path).exists():
print("CMUdict missing. Downloading to data/cmudict/.")
self.download()
with open(file_or_path, encoding='latin-1') as f:
entries = _parse_cmudict(f)
else:
entries = _parse_cmudict(file_or_path)
if not keep_ambiguous:
entries = {word: pron for word, pron in entries.items() if len(pron) == 1}
self._entries = entries
if heteronyms_path is not None:
with open(heteronyms_path, encoding='utf-8') as f:
self.heteronyms = [l.rstrip() for l in f]
def __len__(self):
if len(self._entries) == 0:
raise ValueError("CMUDict not initialized")
return len(self._entries)
def lookup(self, word):
'''Returns list of ARPAbet pronunciations of the given word.'''
if len(self._entries) == 0:
raise ValueError("CMUDict not initialized")
return self._entries.get(word.upper())
def download(self):
url = 'https://github.com/Alexir/CMUdict/raw/master/cmudict-0.7b'
try:
Path('cmudict').mkdir(parents=False, exist_ok=True)
urllib.request.urlretrieve(url, filename='cmudict/cmudict-0.7b')
except:
print("Automatic download of CMUdict failed. Try manually with:")
print()
print(" bash scripts/download_cmudict.sh")
print()
print("and re-run the script.")
sys.exit(0)
_alt_re = re.compile(r'\([0-9]+\)')
def _parse_cmudict(file):
cmudict = {}
for line in file:
if len(line) and (line[0] >= 'A' and line[0] <= 'Z' or line[0] == "'"):
parts = line.split(' ')
word = re.sub(_alt_re, '', parts[0])
pronunciation = _get_pronunciation(parts[1])
if pronunciation:
if word in cmudict:
cmudict[word].append(pronunciation)
else:
cmudict[word] = [pronunciation]
return cmudict
def _get_pronunciation(s):
parts = s.strip().split(' ')
for part in parts:
if part not in _valid_symbol_set:
return None
return ' '.join(parts)
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