Add `base_model` field to `forward_tts` configs

TTS/trainer.py

@@ -1182,7 +1182,6 @@ def process_args(args, config=None):
         args.restore_path, best_model = get_last_checkpoint(args.continue_path)
         if not args.best_path:
             args.best_path = best_model
-
     # init config if not already defined
     if config is None:
         if args.config_path:

TTS/tts/configs/fast_pitch_config.py

@@ -18,6 +18,10 @@ class FastPitchConfig(BaseTTSConfig):
         model (str):
             Model name used for selecting the right model at initialization. Defaults to `fast_pitch`.
 
+        base_model (str):
+            Name of the base model being configured as this model so that 🐸 TTS knows it needs to initiate
+            the base model rather than searching for the `model` implementation. Defaults to `forward_tts`.
+
         model_args (Coqpit):
             Model class arguments. Check `FastPitchArgs` for more details. Defaults to `FastPitchArgs()`.
 
@@ -94,9 +98,11 @@ class FastPitchConfig(BaseTTSConfig):
             Maximum input sequence length to be used at training. Larger values result in more VRAM usage.
     """
 
-    model: str = "forward_tts"
+    model: str = "fast_pitch"
+    base_model: str = "forward_tts"
+
     # model specific params
-    model_args: ForwardTTSArgs = field(default_factory=ForwardTTSArgs)
+    model_args: ForwardTTSArgs = ForwardTTSArgs()
 
     # multi-speaker settings
     use_speaker_embedding: bool = False

TTS/tts/configs/speedy_speech_config.py

@@ -16,7 +16,11 @@ class SpeedySpeechConfig(BaseTTSConfig):
 
      Args:
         model (str):
-            Model name used for selecting the right model at initialization. Defaults to `fast_pitch`.
+            Model name used for selecting the right model at initialization. Defaults to `speedy_speech`.
+
+        base_model (str):
+            Name of the base model being configured as this model so that 🐸 TTS knows it needs to initiate
+            the base model rather than searching for the `model` implementation. Defaults to `forward_tts`.
 
         model_args (Coqpit):
             Model class arguments. Check `FastPitchArgs` for more details. Defaults to `FastPitchArgs()`.
@@ -91,7 +95,8 @@ class SpeedySpeechConfig(BaseTTSConfig):
             Maximum input sequence length to be used at training. Larger values result in more VRAM usage.
     """
 
-    model: str = "forward_tts"
+    model: str = "speedy_speech"
+    base_model: str = "forward_tts"
 
     # set model args as SpeedySpeech
     model_args: ForwardTTSArgs = ForwardTTSArgs(

TTS/tts/models/__init__.py

@@ -4,7 +4,11 @@ from TTS.utils.generic_utils import find_module
 
 def setup_model(config):
     print(" > Using model: {}".format(config.model))
-    MyModel = find_module("TTS.tts.models", config.model.lower())
+    # fetch the right model implementation.
+    if "base_model" in config and config["base_model"] is not None:
+        MyModel = find_module("TTS.tts.models", config.base_model.lower())
+    else:
+        MyModel = find_module("TTS.tts.models", config.model.lower())
     # define set of characters used by the model
     if config.characters is not None:
         # set characters from config