modify according to PR reviews

TTS/tts/datasets/preprocess.py

@@ -372,10 +372,15 @@ def _voxcel_x(root_path, meta_file, voxcel_idx):
 
 
 
+def baker(root_path: str, meta_file: str) ->  List[List[str]]:
+    """Normalizes the Baker meta data file to TTS format
 
-# ======================================== Baker (chinese mandarin single speaker) ===========================================
-def baker(root_path, meta_file):
-    """Normalizes the Baker meta data file to TTS format"""
+    Args:
+        root_path (str): path to the baker dataset
+        meta_file (str): name of the meta dataset containing names of wav to select and the transcript of the sentence  
+    Returns:
+        List[List[str]]: List of (text, wav_path, speaker_name) associated with each sentences
+    """
     txt_file = os.path.join(root_path, meta_file)
     items = []
     speaker_name = "baker"

TTS/tts/utils/chinese_mandarin/numbers.py

@@ -105,7 +105,7 @@ def _num2chinese(num :str, big=False, simp=True, o=False, twoalt=False) -> str:
 
 
 
-def _number_replace(match) -> str:
+def _number_replace(match: re.Match) -> str:
     """function to apply in a match, transform all numbers in a match by chinese characters
 
     Args:

TTS/tts/utils/synthesis.py

@@ -220,7 +220,6 @@ def synthesis(model,
                 model outputs.
             speaker_id (int): id of speaker
             style_wav (str | Dict[str, float]): Uses for style embedding of GST.
-            style_wav (str): Uses for style embedding of GST.
             truncated (bool): keep model states after inference. It can be used
                 for continuous inference at long texts.
             enable_eos_bos_chars (bool): enable special chars for end of sentence and start of sentence.

TTS/utils/synthesizer.py

@@ -127,7 +127,7 @@ class Synthesizer(object):
         gst_style_input = None
         if self.tts_config.use_gst:
             if self.tts_config.gst["gst_style_input"] not in ["", {}]:
-                style_wav = self.tts_config.gst["gst_style_input"]
+                gst_style_input = self.tts_config.gst["gst_style_input"]
 
         for sen in sens:
             # synthesize voice