refactor: only use keyword args in Synthesizer

TTS/bin/synthesize.py

@@ -407,18 +407,18 @@ def main():
 
         # load models
         synthesizer = Synthesizer(
-            tts_path,
-            tts_config_path,
-            speakers_file_path,
-            language_ids_file_path,
-            vocoder_path,
-            vocoder_config_path,
-            encoder_path,
-            encoder_config_path,
-            vc_path,
-            vc_config_path,
-            model_dir,
-            args.voice_dir,
+            tts_checkpoint=tts_path,
+            tts_config_path=tts_config_path,
+            tts_speakers_file=speakers_file_path,
+            tts_languages_file=language_ids_file_path,
+            vocoder_checkpoint=vocoder_path,
+            vocoder_config=vocoder_config_path,
+            encoder_checkpoint=encoder_path,
+            encoder_config=encoder_config_path,
+            vc_checkpoint=vc_path,
+            vc_config=vc_config_path,
+            model_dir=model_dir,
+            voice_dir=args.voice_dir,
         ).to(device)
 
         # query speaker ids of a multi-speaker model.

TTS/utils/synthesizer.py

@@ -28,6 +28,7 @@ logger = logging.getLogger(__name__)
 class Synthesizer(nn.Module):
     def __init__(
         self,
+        *,
         tts_checkpoint: str = "",
         tts_config_path: str = "",
         tts_speakers_file: str = "",

tests/inference_tests/test_synthesizer.py

@@ -23,7 +23,7 @@ class SynthesizerTest(unittest.TestCase):
         tts_root_path = get_tests_input_path()
         tts_checkpoint = os.path.join(tts_root_path, "checkpoint_10.pth")
         tts_config = os.path.join(tts_root_path, "dummy_model_config.json")
-        synthesizer = Synthesizer(tts_checkpoint, tts_config, None, None)
+        synthesizer = Synthesizer(tts_checkpoint=tts_checkpoint, tts_config_path=tts_config)
         synthesizer.tts("Better this test works!!")
 
     def test_split_into_sentences(self):