diff --git a/configs/config.py b/configs/config.py
index bfa7873..d259160 100644
--- a/configs/config.py
+++ b/configs/config.py
@@ -1,6 +1,7 @@
 import argparse
 import os
 import sys
+import json
 from multiprocessing import cpu_count
 
 import torch
@@ -10,23 +11,13 @@ import logging
 logger = logging.getLogger(__name__)
 
 
-def use_fp32_config():
-    for config_file in [
-        "v1/32k.json",
-        "v1/40k.json",
-        "v1/48k.json",
-        "v2/48k.json",
-        "v2/32k.json",
-    ]:
-        with open(f"configs/{config_file}", "r") as f:
-            strr = f.read().replace("true", "false")
-        with open(f"configs/{config_file}", "w") as f:
-            f.write(strr)
-    with open("infer/modules/train/preprocess.py", "r") as f:
-        strr = f.read().replace("3.7", "3.0")
-    with open("infer/modules/train/preprocess.py", "w") as f:
-        f.write(strr)
-
+version_config_list = [
+    "v1/32k.json",
+    "v1/40k.json",
+    "v1/48k.json",
+    "v2/48k.json",
+    "v2/32k.json",
+]
 
 def singleton_variable(func):
     def wrapper(*args, **kwargs):
@@ -45,6 +36,7 @@ class Config:
         self.is_half = True
         self.n_cpu = 0
         self.gpu_name = None
+        self.json_config = self.load_config_json()
         self.gpu_mem = None
         (
             self.python_cmd,
@@ -57,6 +49,14 @@ class Config:
         self.instead = ""
         self.x_pad, self.x_query, self.x_center, self.x_max = self.device_config()
 
+    @staticmethod
+    def load_config_json() -> dict:
+        d = {}
+        for config_file in version_config_list:
+            with open(f"configs/{config_file}", "r") as f:
+                d[config_file] = json.load(f)
+        return d
+
     @staticmethod
     def arg_parse() -> tuple:
         exe = sys.executable or "python"
@@ -101,6 +101,10 @@ class Config:
             return True
         except Exception:
             return False
+    
+    def use_fp32_config(self):
+        for config_file in version_config_list:
+            self.json_config[config_file]["train"]["fp16_run"] = False
 
     def device_config(self) -> tuple:
         if torch.cuda.is_available():
@@ -116,7 +120,7 @@ class Config:
             ):
                 logger.info("Found GPU %s, force to fp32", self.gpu_name)
                 self.is_half = False
-                use_fp32_config()
+                self.use_fp32_config()
             else:
                 logger.info("Found GPU %s", self.gpu_name)
             self.gpu_mem = int(
@@ -135,12 +139,12 @@ class Config:
             logger.info("No supported Nvidia GPU found")
             self.device = self.instead = "mps"
             self.is_half = False
-            use_fp32_config()
+            self.use_fp32_config()
         else:
             logger.info("No supported Nvidia GPU found")
             self.device = self.instead = "cpu"
             self.is_half = False
-            use_fp32_config()
+            self.use_fp32_config()
 
         if self.n_cpu == 0:
             self.n_cpu = cpu_count()
diff --git a/gui_v1.py b/gui_v1.py
index 4add169..f178633 100644
--- a/gui_v1.py
+++ b/gui_v1.py
@@ -358,7 +358,7 @@ if __name__ == "__main__":
                     )
                 if event == "start_vc" and self.flag_vc == False:
                     if self.set_values(values) == True:
-                        logger.info("Use CUDA: %b", torch.cuda.is_available())
+                        logger.info("Use CUDA: %s", torch.cuda.is_available())
                         self.start_vc()
                         settings = {
                             "pth_path": values["pth_path"],
diff --git a/infer-web.py b/infer-web.py
index 61ecfdb..f263384 100644
--- a/infer-web.py
+++ b/infer-web.py
@@ -10,6 +10,8 @@ import warnings
 from random import shuffle
 from subprocess import Popen
 from time import sleep
+import json
+import pathlib
 
 import fairseq
 import faiss
@@ -200,20 +202,15 @@ def if_done_multi(done, ps):
     done[0] = True
 
 
-def get_quoted_python_cmd():
-    return f'"{config.python_cmd}"'
-
-
 def preprocess_dataset(trainset_dir, exp_dir, sr, n_p):
     sr = sr_dict[sr]
     os.makedirs("%s/logs/%s" % (now_dir, exp_dir), exist_ok=True)
     f = open("%s/logs/%s/preprocess.log" % (now_dir, exp_dir), "w")
     f.close()
+    per = 3.0 if config.is_half else 3.7
     cmd = (
-        get_quoted_python_cmd()
-        + ' infer/modules/train/preprocess.py "%s" %s %s "%s/logs/%s" '
-        % (trainset_dir, sr, n_p, now_dir, exp_dir)
-        + str(config.noparallel)
+        '"%s" infer/modules/train/preprocess.py "%s" %s %s "%s/logs/%s" %s %.1f'
+        % (config.python_cmd, trainset_dir, sr, n_p, now_dir, exp_dir, config.noparallel, per)
     )
     logger.info(cmd)
     p = Popen(cmd, shell=True)  # , stdin=PIPE, stdout=PIPE,stderr=PIPE,cwd=now_dir
@@ -247,9 +244,9 @@ def extract_f0_feature(gpus, n_p, f0method, if_f0, exp_dir, version19, gpus_rmvp
     if if_f0:
         if f0method != "rmvpe_gpu":
             cmd = (
-                get_quoted_python_cmd()
-                + ' infer/modules/train/extract/extract_f0_print.py "%s/logs/%s" %s %s'
+                '"%s" infer/modules/train/extract/extract_f0_print.py "%s/logs/%s" %s %s'
                 % (
+                    config.python_cmd,
                     now_dir,
                     exp_dir,
                     n_p,
@@ -275,7 +272,8 @@ def extract_f0_feature(gpus, n_p, f0method, if_f0, exp_dir, version19, gpus_rmvp
                 leng = len(gpus_rmvpe)
                 ps = []
                 for idx, n_g in enumerate(gpus_rmvpe):
-                    cmd = get_quoted_python_cmd() + ' infer/modules/train/extract/extract_f0_rmvpe.py %s %s %s "%s/logs/%s" %s ' % (
+                    cmd = '"%s" infer/modules/train/extract/extract_f0_rmvpe.py %s %s %s "%s/logs/%s" %s ' % (
+                        config.python_cmd,
                         leng,
                         idx,
                         n_g,
@@ -335,7 +333,8 @@ def extract_f0_feature(gpus, n_p, f0method, if_f0, exp_dir, version19, gpus_rmvp
     leng = len(gpus)
     ps = []
     for idx, n_g in enumerate(gpus):
-        cmd = get_quoted_python_cmd() + ' infer/modules/train/extract_feature_print.py %s %s %s %s "%s/logs/%s" %s' % (
+        cmd = '"%s" infer/modules/train/extract_feature_print.py %s %s %s %s "%s/logs/%s" %s' % (
+            config.python_cmd,
             config.device,
             leng,
             idx,
@@ -516,8 +515,18 @@ def click_train(
         logger.info("No pretrained Generator")
     if pretrained_D15 == "":
         logger.info("No pretrained Discriminator")
+    if version19 == "v1" or sr2 == "40k":
+        config_path = "v1/%s.json" % sr2
+    else:
+        config_path = "v2/%s.json" % sr2
+    config_save_path = os.path.join(exp_dir, "config.json")
+    if not pathlib.Path(config_save_path).exists():
+        with open(config_save_path, "w", encoding="utf-8") as f:
+            json.dump(config.json_config[config_path], f, ensure_ascii=False, indent=4, sort_keys=True)
+            f.write("\n")
     if gpus16:
-        cmd = get_quoted_python_cmd() + ' infer/modules/train/train.py -e "%s" -sr %s -f0 %s -bs %s -g %s -te %s -se %s %s %s -l %s -c %s -sw %s -v %s' % (
+        cmd = '"%s" infer/modules/train/train.py -e "%s" -sr %s -f0 %s -bs %s -g %s -te %s -se %s %s %s -l %s -c %s -sw %s -v %s' % (
+            config.python_cmd,
             exp_dir1,
             sr2,
             1 if if_f0_3 else 0,
@@ -534,9 +543,9 @@ def click_train(
         )
     else:
         cmd = (
-            config.python_cmd
-            + ' infer/modules/train/train.py -e "%s" -sr %s -f0 %s -bs %s -te %s -se %s %s %s -l %s -c %s -sw %s -v %s'
+            '"%s" infer/modules/train/train.py -e "%s" -sr %s -f0 %s -bs %s -te %s -se %s %s %s -l %s -c %s -sw %s -v %s'
             % (
+                config.python_cmd,
                 exp_dir1,
                 sr2,
                 1 if if_f0_3 else 0,
diff --git a/infer/lib/train/utils.py b/infer/lib/train/utils.py
index c80d800..a19c662 100644
--- a/infer/lib/train/utils.py
+++ b/infer/lib/train/utils.py
@@ -5,7 +5,7 @@ import logging
 import os
 import subprocess
 import sys
-import traceback
+import shutil
 
 import numpy as np
 import torch
@@ -297,7 +297,6 @@ def get_hparams(init=True):
       -c不要了
     """
     parser = argparse.ArgumentParser()
-    # parser.add_argument('-c', '--config', type=str, default="configs/40k.json",help='JSON file for configuration')
     parser.add_argument(
         "-se",
         "--save_every_epoch",
@@ -360,23 +359,9 @@ def get_hparams(init=True):
     name = args.experiment_dir
     experiment_dir = os.path.join("./logs", args.experiment_dir)
 
-    if not os.path.exists(experiment_dir):
-        os.makedirs(experiment_dir)
-
-    if args.version == "v1" or args.sample_rate == "40k":
-        config_path = "configs/v1/%s.json" % args.sample_rate
-    else:
-        config_path = "configs/v2/%s.json" % args.sample_rate
     config_save_path = os.path.join(experiment_dir, "config.json")
-    if init:
-        with open(config_path, "r") as f:
-            data = f.read()
-        with open(config_save_path, "w") as f:
-            f.write(data)
-    else:
-        with open(config_save_path, "r") as f:
-            data = f.read()
-    config = json.loads(data)
+    with open(config_save_path, "r") as f:
+        config = json.load(f)
 
     hparams = HParams(**config)
     hparams.model_dir = hparams.experiment_dir = experiment_dir
diff --git a/infer/modules/train/preprocess.py b/infer/modules/train/preprocess.py
index c57b5dc..fbe8130 100644
--- a/infer/modules/train/preprocess.py
+++ b/infer/modules/train/preprocess.py
@@ -12,6 +12,7 @@ sr = int(sys.argv[2])
 n_p = int(sys.argv[3])
 exp_dir = sys.argv[4]
 noparallel = sys.argv[5] == "True"
+per = float(sys.argv[6])
 import multiprocessing
 import os
 import traceback
@@ -36,7 +37,7 @@ def println(strr):
 
 
 class PreProcess:
-    def __init__(self, sr, exp_dir):
+    def __init__(self, sr, exp_dir, per=3.7):
         self.slicer = Slicer(
             sr=sr,
             threshold=-42,
@@ -47,7 +48,7 @@ class PreProcess:
         )
         self.sr = sr
         self.bh, self.ah = signal.butter(N=5, Wn=48, btype="high", fs=self.sr)
-        self.per = 3.0
+        self.per = per
         self.overlap = 0.3
         self.tail = self.per + self.overlap
         self.max = 0.9
@@ -134,8 +135,8 @@ class PreProcess:
             println("Fail. %s" % traceback.format_exc())
 
 
-def preprocess_trainset(inp_root, sr, n_p, exp_dir):
-    pp = PreProcess(sr, exp_dir)
+def preprocess_trainset(inp_root, sr, n_p, exp_dir, per):
+    pp = PreProcess(sr, exp_dir, per)
     println("start preprocess")
     println(sys.argv)
     pp.pipeline_mp_inp_dir(inp_root, n_p)
@@ -143,4 +144,4 @@ def preprocess_trainset(inp_root, sr, n_p, exp_dir):
 
 
 if __name__ == "__main__":
-    preprocess_trainset(inp_root, sr, n_p, exp_dir)
+    preprocess_trainset(inp_root, sr, n_p, exp_dir, per)
diff --git a/infer/modules/vc/modules.py b/infer/modules/vc/modules.py
index 530fb8b..774f741 100644
--- a/infer/modules/vc/modules.py
+++ b/infer/modules/vc/modules.py
@@ -210,12 +210,12 @@ class VC:
             if self.tgt_sr != resample_sr >= 16000:
                 self.tgt_sr = resample_sr
             index_info = (
-                "Using index:%s." % file_index
+                "Index:\n%s." % file_index
                 if os.path.exists(file_index)
                 else "Index not used."
             )
             return (
-                f"Success.\n {index_info}\nTime:\n npy:{times[0]}s, f0:{times[1]}s, infer:{times[2]}s",
+                "Success.\n%s\nTime:\nnpy: %.2fs, f0: %.2fs, infer: %.2fs." % (index_info, *times),
                 (self.tgt_sr, audio_opt),
             )
         except:
diff --git a/run.sh b/run.sh
index 24ae3e2..704c9ff 100755
--- a/run.sh
+++ b/run.sh
@@ -53,5 +53,9 @@ fi
 # Download models
 ./tools/dlmodels.sh
 
+if [[ $? -ne 0 ]]; then
+  exit 1
+fi
+
 # Run the main script
 python3 infer-web.py --pycmd python3
diff --git a/tools/dlmodels.sh b/tools/dlmodels.sh
index 212f21c..5fba0ed 100755
--- a/tools/dlmodels.sh
+++ b/tools/dlmodels.sh
@@ -39,6 +39,7 @@ VR_DeEchoAggressive="VR-DeEchoAggressive.pth"
 VR_DeEchoDeReverb="VR-DeEchoDeReverb.pth"
 VR_DeEchoNormal="VR-DeEchoNormal.pth"
 onnx_dereverb="vocals.onnx"
+rmvpe="rmvpe.pt"
 
 dlhp2_all="https://huggingface.co/lj1995/VoiceConversionWebUI/resolve/main/uvr5_weights/HP2_all_vocals.pth"
 dlhp3_all="https://huggingface.co/lj1995/VoiceConversionWebUI/resolve/main/uvr5_weights/HP3_all_vocals.pth"
@@ -47,6 +48,7 @@ dlVR_DeEchoAggressive="https://huggingface.co/lj1995/VoiceConversionWebUI/resolv
 dlVR_DeEchoDeReverb="https://huggingface.co/lj1995/VoiceConversionWebUI/resolve/main/uvr5_weights/VR-DeEchoDeReverb.pth"
 dlVR_DeEchoNormal="https://huggingface.co/lj1995/VoiceConversionWebUI/resolve/main/uvr5_weights/VR-DeEchoNormal.pth"
 dlonnx_dereverb="https://huggingface.co/lj1995/VoiceConversionWebUI/resolve/main/uvr5_weights/onnx_dereverb_By_FoxJoy/vocals.onnx"
+dlrmvpe="https://huggingface.co/lj1995/VoiceConversionWebUI/resolve/main/rmvpe.pt"
 
 hb="hubert_base.pt"
 
@@ -523,6 +525,25 @@ else
     fi
 fi
 
+echo checking $rmvpe
+if [ -f "./assets/rmvpe/$rmvpe" ]; then
+    echo $rmvpe in ./assets/rmvpe checked.
+else
+    echo failed. starting download from huggingface.
+    if command -v aria2c &> /dev/null; then
+        aria2c --console-log-level=error -c -x 16 -s 16 -k 1M $dlrmvpe -d ./assets/rmvpe -o $rmvpe
+        if [ -f "./assets/rmvpe/$rmvpe" ]; then
+            echo download successful.
+        else
+            echo please try again!
+            exit 1
+        fi
+    else
+        echo aria2c command not found. Please install aria2c and try again.
+        exit 1
+    fi
+fi
+
 echo checking $hb
 if [ -f "./assets/hubert/$hb" ]; then
     echo $hb in ./assets/hubert/pretrained checked.