diff --git a/examples/advanced-ai-voice-changer.json b/examples/advanced-ai-voice-changer.json
index 2b9a6bf..657bbe0 100644
--- a/examples/advanced-ai-voice-changer.json
+++ b/examples/advanced-ai-voice-changer.json
@@ -1,340 +1,7 @@
 {
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@@ -433,155 +95,74 @@
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@@ -670,20 +405,15 @@
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+            83
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+          "shape": 3,
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+          "link": 79,
+          "widget": {
+            "name": "string2"
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+          "name": "STRING",
+          "type": "STRING",
+          "links": [
+            84
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+          "slot_index": 0
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@@ -753,46 +753,6 @@
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@@ -833,14 +793,6 @@
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@@ -850,12 +802,60 @@
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   "groups": [
@@ -884,8 +884,8 @@
     {
       "title": "Postprocess",
       "bounding": [
-        262,
-        -236,
+        256,
+        -193,
         712,
         529
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@@ -907,10 +907,10 @@
   "config": {},
   "extra": {
     "ds": {
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+        475.93439305141254,
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diff --git a/examples/complete-ai-voice-changer.json b/examples/complete-ai-voice-changer.json
index 0a4007c..3c33e27 100644
--- a/examples/complete-ai-voice-changer.json
+++ b/examples/complete-ai-voice-changer.json
@@ -1,245 +1,7 @@
 {
-  "last_node_id": 54,
-  "last_link_id": 168,
+  "last_node_id": 57,
+  "last_link_id": 173,
   "nodes": [
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@@ -258,7 +20,7 @@
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@@ -306,7 +68,7 @@
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@@ -349,11 +111,6 @@
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@@ -373,7 +130,7 @@
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@@ -474,16 +231,6 @@
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@@ -509,7 +256,7 @@
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@@ -558,7 +305,7 @@
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@@ -601,88 +348,6 @@
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@@ -702,7 +367,7 @@
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@@ -757,7 +422,7 @@
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@@ -812,7 +477,7 @@
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@@ -856,80 +521,6 @@
         "flac"
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@@ -942,7 +533,7 @@
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@@ -999,7 +590,7 @@
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@@ -1045,25 +636,25 @@
       ]
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     {
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+      "id": 55,
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+        252.92194524229842,
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@@ -1072,20 +663,76 @@
           "name": "vhs_audio",
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+            169,
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+        "Node name for S&R": "RVC-Studio.LoadAudio"
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       "widgets_values": [
-        "Monologue of Three.mp3",
+        "Midnight Memories.mp3",
         "None",
-        "image",
+        "image"
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@@ -1093,12 +740,165 @@
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+      "outputs": [
+        {
+          "name": "hubert_model",
+          "type": "HUBERT_MODEL",
+          "links": [
+            58
+          ],
+          "shape": 3
+        }
+      ],
+      "properties": {
+        "Node name for S&R": "LoadHubertModel"
+      },
+      "widgets_values": [
+        "content-vec-best.safetensors"
+      ]
+    },
     {
       "id": 31,
       "type": "JoinStrings",
       "pos": [
-        1379,
-        -786
+        1383,
+        -791
       ],
       "size": {
         "0": 315,
@@ -1107,7 +907,7 @@
       "flags": {
         "collapsed": true
       },
-      "order": 4,
+      "order": 7,
       "mode": 0,
       "inputs": [
         {
@@ -1121,7 +921,7 @@
         {
           "name": "string2",
           "type": "STRING",
-          "link": 168,
+          "link": 171,
           "widget": {
             "name": "string2"
           }
@@ -1132,7 +932,7 @@
           "name": "STRING",
           "type": "STRING",
           "links": [
-            64
+            173
           ],
           "shape": 3,
           "slot_index": 0
@@ -1146,6 +946,168 @@
         "",
         "\\"
       ]
+    },
+    {
+      "id": 46,
+      "type": "MergeAudioNode",
+      "pos": [
+        1294,
+        -753
+      ],
+      "size": [
+        315,
+        166
+      ],
+      "flags": {},
+      "order": 17,
+      "mode": 0,
+      "inputs": [
+        {
+          "name": "audio1",
+          "type": "VHS_AUDIO",
+          "link": 152
+        },
+        {
+          "name": "audio2",
+          "type": "VHS_AUDIO",
+          "link": 151
+        },
+        {
+          "name": "audio3_opt",
+          "type": "VHS_AUDIO",
+          "link": null,
+          "slot_index": 2
+        },
+        {
+          "name": "audio4_opt",
+          "type": "VHS_AUDIO",
+          "link": null
+        }
+      ],
+      "outputs": [
+        {
+          "name": "vhs_audio",
+          "type": "VHS_AUDIO",
+          "links": [
+            135
+          ],
+          "shape": 3,
+          "slot_index": 0
+        }
+      ],
+      "properties": {
+        "Node name for S&R": "MergeAudioNode"
+      },
+      "widgets_values": [
+        "None",
+        "median",
+        true,
+        {
+          "hidden": false,
+          "paused": false,
+          "params": {}
+        }
+      ]
+    },
+    {
+      "id": 6,
+      "type": "LoadPitchExtractionParams",
+      "pos": [
+        1297,
+        -499
+      ],
+      "size": {
+        "0": 315,
+        "1": 178
+      },
+      "flags": {},
+      "order": 2,
+      "mode": 0,
+      "outputs": [
+        {
+          "name": "pitch_extraction_params",
+          "type": "PITCH_EXTRACTION",
+          "links": [
+            59
+          ],
+          "shape": 3
+        }
+      ],
+      "properties": {
+        "Node name for S&R": "LoadPitchExtractionParams"
+      },
+      "widgets_values": [
+        "rmvpe+",
+        false,
+        0.75,
+        0,
+        0.25,
+        0.25
+      ]
+    },
+    {
+      "id": 4,
+      "type": "LoadRVCModelNode",
+      "pos": [
+        961,
+        -135
+      ],
+      "size": {
+        "0": 315,
+        "1": 102
+      },
+      "flags": {},
+      "order": 3,
+      "mode": 0,
+      "outputs": [
+        {
+          "name": "model",
+          "type": "RVC_MODEL",
+          "links": [
+            57
+          ],
+          "shape": 3
+        },
+        {
+          "name": "model_name",
+          "type": "STRING",
+          "links": [
+            66
+          ],
+          "shape": 3,
+          "slot_index": 1
+        }
+      ],
+      "properties": {
+        "Node name for S&R": "LoadRVCModelNode"
+      },
+      "widgets_values": [
+        "RVC/Sayano.pth",
+        "RVC/.index/added_IVF1063_Flat_nprobe_1_Sayano_v2.index"
+      ]
+    },
+    {
+      "id": 57,
+      "type": "Note",
+      "pos": [
+        -489,
+        -945
+      ],
+      "size": {
+        "0": 210,
+        "1": 58
+      },
+      "flags": {},
+      "order": 4,
+      "mode": 0,
+      "properties": {
+        "text": ""
+      },
+      "widgets_values": [
+        "Enjoy the complete AI song cover generator!"
+      ],
+      "color": "#432",
+      "bgcolor": "#653"
     }
   ],
   "links": [
@@ -1189,22 +1151,6 @@
       1,
       "VHS_AUDIO"
     ],
-    [
-      63,
-      33,
-      0,
-      39,
-      0,
-      "VHS_AUDIO"
-    ],
-    [
-      64,
-      31,
-      0,
-      39,
-      1,
-      "STRING"
-    ],
     [
       66,
       4,
@@ -1333,22 +1279,6 @@
       1,
       "VHS_AUDIO"
     ],
-    [
-      162,
-      53,
-      1,
-      11,
-      0,
-      "VHS_AUDIO"
-    ],
-    [
-      163,
-      53,
-      1,
-      44,
-      0,
-      "VHS_AUDIO"
-    ],
     [
       166,
       7,
@@ -1366,12 +1296,44 @@
       "VHS_AUDIO"
     ],
     [
-      168,
-      53,
+      169,
+      55,
+      1,
+      11,
+      0,
+      "VHS_AUDIO"
+    ],
+    [
+      170,
+      55,
+      1,
+      44,
+      0,
+      "VHS_AUDIO"
+    ],
+    [
+      171,
+      55,
       0,
       31,
       1,
       "STRING"
+    ],
+    [
+      172,
+      33,
+      0,
+      56,
+      0,
+      "VHS_AUDIO"
+    ],
+    [
+      173,
+      31,
+      0,
+      56,
+      1,
+      "STRING"
     ]
   ],
   "groups": [
@@ -1423,10 +1385,10 @@
   "config": {},
   "extra": {
     "ds": {
-      "scale": 0.9090909090909091,
+      "scale": 0.5131581182307068,
       "offset": [
-        -959.9219208282357,
-        981.1146284125558
+        779.5032540079666,
+        1177.1065437973318
       ]
     }
   },
diff --git a/examples/simple-ai-voice-changer.json b/examples/simple-ai-voice-changer.json
index 2fc4cf6..46edc02 100644
--- a/examples/simple-ai-voice-changer.json
+++ b/examples/simple-ai-voice-changer.json
@@ -1,6 +1,6 @@
 {
-  "last_node_id": 9,
-  "last_link_id": 15,
+  "last_node_id": 20,
+  "last_link_id": 25,
   "nodes": [
     {
       "id": 6,
@@ -38,37 +38,6 @@
         0.25
       ]
     },
-    {
-      "id": 5,
-      "type": "LoadHubertModel",
-      "pos": [
-        627,
-        12
-      ],
-      "size": {
-        "0": 315,
-        "1": 58
-      },
-      "flags": {},
-      "order": 1,
-      "mode": 0,
-      "outputs": [
-        {
-          "name": "hubert_model",
-          "type": "HUBERT_MODEL",
-          "links": [
-            4
-          ],
-          "shape": 3
-        }
-      ],
-      "properties": {
-        "Node name for S&R": "LoadHubertModel"
-      },
-      "widgets_values": [
-        "hubert_base.pt"
-      ]
-    },
     {
       "id": 4,
       "type": "LoadRVCModelNode",
@@ -78,10 +47,10 @@
       ],
       "size": {
         "0": 315,
-        "1": 78
+        "1": 102
       },
       "flags": {},
-      "order": 2,
+      "order": 1,
       "mode": 0,
       "outputs": [
         {
@@ -103,66 +72,8 @@
         "Node name for S&R": "LoadRVCModelNode"
       },
       "widgets_values": [
-        "RVC/Sayano.pth"
-      ]
-    },
-    {
-      "id": 3,
-      "type": "PreviewAudio",
-      "pos": [
-        1347,
-        132
-      ],
-      "size": [
-        315,
-        150
-      ],
-      "flags": {},
-      "order": 7,
-      "mode": 0,
-      "inputs": [
-        {
-          "name": "audio",
-          "type": "VHS_AUDIO",
-          "link": 10
-        },
-        {
-          "name": "filename",
-          "type": "STRING",
-          "link": 11,
-          "widget": {
-            "name": "filename"
-          }
-        }
-      ],
-      "outputs": [
-        {
-          "name": "output_path",
-          "type": "STRING",
-          "links": null,
-          "shape": 3
-        },
-        {
-          "name": "vhs_audio",
-          "type": "VHS_AUDIO",
-          "links": null,
-          "shape": 3
-        }
-      ],
-      "properties": {
-        "Node name for S&R": "PreviewAudio"
-      },
-      "widgets_values": [
-        "test",
-        "flac",
-        1,
-        true,
-        true,
-        {
-          "hidden": false,
-          "paused": false,
-          "params": {}
-        }
+        "RVC/Sayano.pth",
+        "None"
       ]
     },
     {
@@ -172,12 +83,12 @@
         621,
         122
       ],
-      "size": [
-        313.7279357910156,
-        166
-      ],
+      "size": {
+        "0": 313.7279357910156,
+        "1": 166
+      },
       "flags": {},
-      "order": 5,
+      "order": 6,
       "mode": 0,
       "inputs": [
         {
@@ -222,33 +133,170 @@
       "widgets_values": [
         0,
         "flac",
-        true,
+        true
+      ]
+    },
+    {
+      "id": 5,
+      "type": "LoadHubertModel",
+      "pos": [
+        627,
+        12
+      ],
+      "size": {
+        "0": 315,
+        "1": 58
+      },
+      "flags": {},
+      "order": 2,
+      "mode": 0,
+      "outputs": [
         {
-          "hidden": false,
-          "paused": false,
-          "params": {}
+          "name": "hubert_model",
+          "type": "HUBERT_MODEL",
+          "links": [
+            4
+          ],
+          "shape": 3
         }
+      ],
+      "properties": {
+        "Node name for S&R": "LoadHubertModel"
+      },
+      "widgets_values": [
+        "content-vec-best.safetensors"
+      ]
+    },
+    {
+      "id": 8,
+      "type": "MergeAudioNode",
+      "pos": [
+        981,
+        128
+      ],
+      "size": {
+        "0": 315,
+        "1": 166
+      },
+      "flags": {},
+      "order": 7,
+      "mode": 0,
+      "inputs": [
+        {
+          "name": "audio1",
+          "type": "VHS_AUDIO",
+          "link": 15
+        },
+        {
+          "name": "audio2",
+          "type": "VHS_AUDIO",
+          "link": 13
+        },
+        {
+          "name": "audio3_opt",
+          "type": "VHS_AUDIO",
+          "link": null
+        },
+        {
+          "name": "audio4_opt",
+          "type": "VHS_AUDIO",
+          "link": null
+        }
+      ],
+      "outputs": [
+        {
+          "name": "vhs_audio",
+          "type": "VHS_AUDIO",
+          "links": [
+            23
+          ],
+          "shape": 3,
+          "slot_index": 0
+        }
+      ],
+      "properties": {
+        "Node name for S&R": "MergeAudioNode"
+      },
+      "widgets_values": [
+        "None",
+        "mean",
+        true
+      ]
+    },
+    {
+      "id": 19,
+      "type": "RVC-Studio.PreviewAudio",
+      "pos": [
+        1413,
+        112
+      ],
+      "size": [
+        315,
+        174
+      ],
+      "flags": {},
+      "order": 8,
+      "mode": 0,
+      "inputs": [
+        {
+          "name": "audio",
+          "type": "VHS_AUDIO",
+          "link": 23
+        },
+        {
+          "name": "filename",
+          "type": "STRING",
+          "link": 25,
+          "widget": {
+            "name": "filename"
+          }
+        }
+      ],
+      "outputs": [
+        {
+          "name": "output_path",
+          "type": "STRING",
+          "links": null,
+          "shape": 3
+        },
+        {
+          "name": "vhs_audio",
+          "type": "VHS_AUDIO",
+          "links": null,
+          "shape": 3
+        }
+      ],
+      "properties": {
+        "Node name for S&R": "RVC-Studio.PreviewAudio"
+      },
+      "widgets_values": [
+        "test",
+        "flac",
+        1,
+        true,
+        true
       ]
     },
     {
       "id": 9,
       "type": "UVR5Node",
       "pos": [
-        243,
-        157
+        260,
+        172
       ],
       "size": {
         "0": 315,
         "1": 150
       },
       "flags": {},
-      "order": 4,
+      "order": 5,
       "mode": 0,
       "inputs": [
         {
           "name": "audio",
           "type": "VHS_AUDIO",
-          "link": 12
+          "link": 24,
+          "slot_index": 0
         }
       ],
       "outputs": [
@@ -282,86 +330,48 @@
       ]
     },
     {
-      "id": 8,
-      "type": "MergeAudioNode",
+      "id": 16,
+      "type": "Note",
       "pos": [
-        981,
-        128
-      ],
-      "size": [
-        315,
-        166
-      ],
-      "flags": {},
-      "order": 6,
-      "mode": 0,
-      "inputs": [
-        {
-          "name": "audio1",
-          "type": "VHS_AUDIO",
-          "link": 15
-        },
-        {
-          "name": "audio2",
-          "type": "VHS_AUDIO",
-          "link": 13
-        },
-        {
-          "name": "audio3_opt",
-          "type": "VHS_AUDIO",
-          "link": null
-        },
-        {
-          "name": "audio4_opt",
-          "type": "VHS_AUDIO",
-          "link": null
-        }
-      ],
-      "outputs": [
-        {
-          "name": "vhs_audio",
-          "type": "VHS_AUDIO",
-          "links": [
-            10
-          ],
-          "shape": 3,
-          "slot_index": 0
-        }
-      ],
-      "properties": {
-        "Node name for S&R": "MergeAudioNode"
-      },
-      "widgets_values": [
-        "None",
-        "mean",
-        true,
-        {
-          "hidden": false,
-          "paused": false,
-          "params": {}
-        }
-      ]
-    },
-    {
-      "id": 2,
-      "type": "LoadAudio",
-      "pos": [
-        -106,
-        162
+        -265,
+        1
       ],
       "size": {
-        "0": 315,
-        "1": 126
+        "0": 445.6835632324219,
+        "1": 100.08426666259766
       },
       "flags": {},
       "order": 3,
       "mode": 0,
+      "properties": {
+        "text": ""
+      },
+      "widgets_values": [
+        "Basic workflow for generating AI covers.\n\nThe nodes here use the legacy VHS_AUDIO format. You can use the converter from VHS (https://github.com/Kosinkadink/ComfyUI-VideoHelperSuite) if you want to use the built-in audio format."
+      ],
+      "color": "#432",
+      "bgcolor": "#653"
+    },
+    {
+      "id": 20,
+      "type": "RVC-Studio.LoadAudio",
+      "pos": [
+        -31,
+        171
+      ],
+      "size": {
+        "0": 210,
+        "1": 126
+      },
+      "flags": {},
+      "order": 4,
+      "mode": 0,
       "outputs": [
         {
           "name": "audio_name",
           "type": "STRING",
           "links": [
-            11
+            25
           ],
           "shape": 3,
           "slot_index": 0
@@ -370,22 +380,18 @@
           "name": "vhs_audio",
           "type": "VHS_AUDIO",
           "links": [
-            12
+            24
           ],
           "shape": 3
         }
       ],
       "properties": {
-        "Node name for S&R": "LoadAudio"
+        "Node name for S&R": "RVC-Studio.LoadAudio"
       },
       "widgets_values": [
-        "grimlight-ost-1st-trailer---wish-upon-a-star.mp3",
+        "FRIENDS.mp3",
         "None",
-        {
-          "hidden": false,
-          "paused": false,
-          "params": {}
-        }
+        "image"
       ]
     }
   ],
@@ -414,30 +420,6 @@
       3,
       "PITCH_EXTRACTION"
     ],
-    [
-      10,
-      8,
-      0,
-      3,
-      0,
-      "VHS_AUDIO"
-    ],
-    [
-      11,
-      2,
-      0,
-      3,
-      1,
-      "STRING"
-    ],
-    [
-      12,
-      2,
-      1,
-      9,
-      0,
-      "VHS_AUDIO"
-    ],
     [
       13,
       9,
@@ -461,16 +443,40 @@
       8,
       0,
       "VHS_AUDIO"
+    ],
+    [
+      23,
+      8,
+      0,
+      19,
+      0,
+      "VHS_AUDIO"
+    ],
+    [
+      24,
+      20,
+      1,
+      9,
+      0,
+      "VHS_AUDIO"
+    ],
+    [
+      25,
+      20,
+      0,
+      19,
+      1,
+      "STRING"
     ]
   ],
   "groups": [],
   "config": {},
   "extra": {
     "ds": {
-      "scale": 0.6830134553650706,
+      "scale": 0.683013455365071,
       "offset": [
-        531.5168724939232,
-        463.2073890439136
+        423.91524190043117,
+        577.965666728948
       ]
     }
   },