diff --git a/GPT_SoVITS/inference_webui.py b/GPT_SoVITS/inference_webui.py
index d2f3f94..2693647 100644
--- a/GPT_SoVITS/inference_webui.py
+++ b/GPT_SoVITS/inference_webui.py
@@ -16,6 +16,7 @@ logging.getLogger("asyncio").setLevel(logging.ERROR)
 logging.getLogger("charset_normalizer").setLevel(logging.ERROR)
 logging.getLogger("torchaudio._extension").setLevel(logging.ERROR)
 import pdb
+import torch
 
 if os.path.exists("./gweight.txt"):
     with open("./gweight.txt", 'r', encoding="utf-8") as file:
@@ -48,11 +49,11 @@ is_share = os.environ.get("is_share", "False")
 is_share = eval(is_share)
 if "_CUDA_VISIBLE_DEVICES" in os.environ:
     os.environ["CUDA_VISIBLE_DEVICES"] = os.environ["_CUDA_VISIBLE_DEVICES"]
-is_half = eval(os.environ.get("is_half", "True"))
+is_half = eval(os.environ.get("is_half", "True")) and not torch.backends.mps.is_available()
 import gradio as gr
 from transformers import AutoModelForMaskedLM, AutoTokenizer
 import numpy as np
-import librosa, torch
+import librosa
 from feature_extractor import cnhubert
 
 cnhubert.cnhubert_base_path = cnhubert_base_path