Update text/__init__.py

text/__init__.py

@@ -27,6 +27,8 @@ def text_to_sequence(text, cleaner_names, ):
 
   clean_text = _clean_text(text, cleaner_names)
   for symbol in clean_text:
+    if symbol not in _symbol_to_id.keys():
+      coutinue
     symbol_id = _symbol_to_id[symbol]
     sequence += [symbol_id]
   return sequence