Add compute encoder accuracy in a function

TTS/bin/eval_encoder.py

@@ -8,6 +8,49 @@ from TTS.config import load_config
 from TTS.tts.datasets import load_tts_samples
 from TTS.tts.utils.speakers import SpeakerManager
 
+def compute_encoder_accuracy(dataset_items, encoder_manager):
+
+    class_name_key = encoder_manager.speaker_encoder_config.class_name_key
+    map_classid_to_classname = getattr(encoder_manager.speaker_encoder_config, 'map_classid_to_classname', None)
+
+    class_acc_dict = {}
+
+    # compute embeddings for all wav_files
+    for item in tqdm(dataset_items):
+        class_name = item[class_name_key]
+        wav_file = item["audio_file"]
+
+        # extract the embedding
+        embedd = encoder_manager.compute_d_vector_from_clip(wav_file)
+        if encoder_manager.speaker_encoder_criterion is not None and map_classid_to_classname is not None:
+            embedding = torch.FloatTensor(embedd).unsqueeze(0)
+            if encoder_manager.use_cuda:
+                embedding = embedding.cuda()
+
+            class_id = encoder_manager.speaker_encoder_criterion.softmax.inference(embedding).item()
+            predicted_label = map_classid_to_classname[str(class_id)]
+        else:
+            predicted_label = None
+
+        if class_name is not None and predicted_label is not None:
+            is_equal = int(class_name == predicted_label)
+            if class_name not in class_acc_dict:
+                class_acc_dict[class_name] = [is_equal]
+            else:
+                class_acc_dict[class_name].append(is_equal)
+        else:
+            raise RuntimeError("Error: class_name or/and predicted_label are None")
+
+    acc_avg = 0
+    for key, values in class_acc_dict.items():
+        acc = sum(values)/len(values)
+        print("Class", key, "Accuracy:", acc)
+        acc_avg += acc
+
+    print("Average Accuracy:", acc_avg/len(class_acc_dict))
+
+
+if __name__ == "__main__":
     parser = argparse.ArgumentParser(
         description="""Compute the accuracy of the encoder.\n\n"""
         """
@@ -36,51 +79,10 @@ args = parser.parse_args()
     c_dataset = load_config(args.config_dataset_path)
 
     meta_data_train, meta_data_eval = load_tts_samples(c_dataset.datasets, eval_split=args.eval)
-wav_files = meta_data_train + meta_data_eval
+    items = meta_data_train + meta_data_eval
 
-encoder_manager = SpeakerManager(
+    enc_manager = SpeakerManager(
         encoder_model_path=args.model_path, encoder_config_path=args.config_path, use_cuda=args.use_cuda
     )
 
-class_name_key = encoder_manager.speaker_encoder_config.class_name_key
+    compute_encoder_accuracy(items, enc_manager)
-
-map_classid_to_classname = getattr(encoder_manager.speaker_encoder_config, 'map_classid_to_classname', None)
-
-# compute speaker embeddings
-class_acc_dict = {}
-
-for idx, wav_file in enumerate(tqdm(wav_files)):
-    if isinstance(wav_file, dict):
-        class_name = wav_file[class_name_key]
-        wav_file = wav_file["audio_file"]
-    else:
-        class_name = None
-
-    # extract the embedding
-    embedd = encoder_manager.compute_d_vector_from_clip(wav_file)
-    if encoder_manager.speaker_encoder_criterion is not None and map_classid_to_classname is not None:
-        embedding = torch.FloatTensor(embedd).unsqueeze(0)
-        if args.use_cuda:
-            embedding = embedding.cuda()
-
-        class_id = encoder_manager.speaker_encoder_criterion.softmax.inference(embedding).item()
-        predicted_label = map_classid_to_classname[str(class_id)]
-    else:
-        predicted_label = None
-
-    if class_name is not None and predicted_label is not None:
-        is_equal = int(class_name == predicted_label)
-        if class_name not in class_acc_dict:
-            class_acc_dict[class_name] = [is_equal]
-        else:
-            class_acc_dict[class_name].append(is_equal)
-    else:
-        raise RuntimeError("Error: class_name or/and predicted_label are None")
-
-acc_avg = 0
-for key, values in class_acc_dict.items():
-    acc = sum(values)/len(values)
-    print("Class", key, "Accuracy:", acc)
-    acc_avg += acc
-
-print("Average Accuracy:", acc_avg/len(class_acc_dict))