wrap checking for metadata when adding a voice in case it throws an error

src/utils.py

@@ -490,6 +490,17 @@ def stop_training():
 	training_process.kill()
 	return "Training cancelled"
 
+def convert_to_halfp():
+	autoregressive_model_path = get_model_path('autoregressive.pth')
+	model = torch.load(autoregressive_model_path)
+	for k in model:
+		if re.findall(r'\.weight$', k):
+			print(f"Converting: {k}")
+			model[k] = model[k].half()
+
+	torch.save(model, './models/tortoise/autoregressive_half.pth')
+	print('Converted model to half precision: ./models/tortoise/autoregressive_half.pth')
+
 def prepare_dataset( files, outdir, language=None, progress=None ):
 	unload_tts()
 
@@ -961,6 +972,7 @@ def read_generate_settings(file, read_latents=True):
 	if isinstance(file, list) and len(file) == 1:
 		file = file[0]
 
+	try:
 		if file is not None:
 			if hasattr(file, 'name'):
 				file = file.name
@@ -972,6 +984,8 @@ def read_generate_settings(file, read_latents=True):
 			elif file[-5:] == ".json":
 				with open(file, 'r') as f:
 					j = json.load(f)
+	except Exception as e:
+		pass
 
 	if j is None:
 		print("No metadata found in audio file to read")