diff --git a/.gitignore b/.gitignore
index f6e4cf2b..8e643496 100644
--- a/.gitignore
+++ b/.gitignore
@@ -141,7 +141,7 @@ cython_debug/
 
 # additional files
 tests/**/*.wav
-!tests/dataset_raw/44k/34j/**/*.wav
+!tests/dataset_raw/34j/**/*.wav
 tests/**/*.npy
 tests/**/*.pt
 tests/**/*.txt
diff --git a/notebooks/so-vits-svc-fork-4.0.ipynb b/notebooks/so-vits-svc-fork-4.0.ipynb
index 5d5c7c82..3125e1de 100644
--- a/notebooks/so-vits-svc-fork-4.0.ipynb
+++ b/notebooks/so-vits-svc-fork-4.0.ipynb
@@ -80,7 +80,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "!mkdir -p \"dataset_raw/44k\""
+    "!mkdir -p \"dataset_raw\""
    ]
   },
   {
@@ -89,7 +89,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "#!rm -r \"dataset_raw/44k\"\n",
+    "#!rm -r \"dataset_raw\"\n",
     "#!rm -r \"dataset/44k\""
    ]
   },
@@ -101,7 +101,7 @@
    "source": [
     "#@title Copy your dataset\n",
     "DATASET_NAME = \"kiritan\" #@param {type: \"string\"}\n",
-    "!cp -R /content/drive/MyDrive/so-vits-svc-fork/dataset/{DATASET_NAME}/ -t \"dataset_raw/44k/\""
+    "!cp -R /content/drive/MyDrive/so-vits-svc-fork/dataset/{DATASET_NAME}/ -t \"dataset_raw/\""
    ]
   },
   {
@@ -114,7 +114,7 @@
     "#@markdown Make sure you agree to the license when using this dataset.\n",
     "# !wget https://tyc.rei-yumesaki.net/files/sozai-tyc-corpus1.zip\n",
     "# !unzip sozai-tyc-corpus1.zip\n",
-    "# !mv \"/content/つくよみちゃんコーパス Vol.1 声優統計コーパス（JVSコーパス準拠）/おまけ：WAV（+12dB増幅＆高音域削減）/WAV（+12dB増幅＆高音域削減）\" \"dataset_raw/44k/tsukuyomi\""
+    "# !mv \"/content/つくよみちゃんコーパス Vol.1 声優統計コーパス（JVSコーパス準拠）/おまけ：WAV（+12dB増幅＆高音域削減）/WAV（+12dB増幅＆高音域削減）\" \"dataset_raw/tsukuyomi\""
    ]
   },
   {
diff --git a/src/so_vits_svc_fork/__main__.py b/src/so_vits_svc_fork/__main__.py
index b247ccb6..2fac2469 100644
--- a/src/so_vits_svc_fork/__main__.py
+++ b/src/so_vits_svc_fork/__main__.py
@@ -371,7 +371,7 @@ def vc(
     "-i",
     "--input-dir",
     type=click.Path(exists=True),
-    default=Path("./dataset_raw/44k"),
+    default=Path("./dataset_raw"),
     help="path to source dir",
 )
 @click.option(
diff --git a/src/so_vits_svc_fork/preprocess_resample.py b/src/so_vits_svc_fork/preprocess_resample.py
index 188d957f..c3302444 100644
--- a/src/so_vits_svc_fork/preprocess_resample.py
+++ b/src/so_vits_svc_fork/preprocess_resample.py
@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+import warnings
 from logging import getLogger
 from pathlib import Path
 from typing import Iterable
@@ -35,6 +36,17 @@ def _get_unique_filename(path: Path, existing_paths: Iterable[Path]) -> Path:
         i += 1
 
 
+def is_relative_to(path: Path, *other):
+    """Return True if the path is relative to another path or False.
+    Python 3.9+ has Path.is_relative_to() method, but we need to support Python 3.8.
+    """
+    try:
+        path.relative_to(*other)
+        return True
+    except ValueError:
+        return False
+
+
 def preprocess_resample(
     input_dir: Path | str, output_dir: Path | str, sampling_rate: int
 ) -> None:
@@ -71,6 +83,17 @@ def preprocess_one(input_path: Path, output_path: Path) -> None:
     out_paths = []
     for in_path in input_dir.rglob("*.*"):
         in_path_relative = in_path.relative_to(input_dir)
+        if not in_path.is_absolute() and is_relative_to(
+            in_path, Path("dataset_raw") / "44k"
+        ):
+            new_in_path_relative = in_path_relative.relative_to("44k")
+            warnings.warn(
+                f"Recommended folder structure has changed since v1.0.0. "
+                "Please move your dataset directly under dataset_raw folder. "
+                f"Recoginzed {in_path_relative} as {new_in_path_relative}"
+            )
+            in_path_relative = new_in_path_relative
+
         if len(in_path_relative.parts) < 2:
             continue
         speaker_name = in_path_relative.parts[0]
diff --git a/tests/dataset_raw/44k/34j/1.wav b/tests/dataset_raw/34j/nested/1.wav
similarity index 100%
rename from tests/dataset_raw/44k/34j/1.wav
rename to tests/dataset_raw/34j/nested/1.wav
diff --git a/tests/dataset_raw/44k/34j/nested/10.wav b/tests/dataset_raw/34j/nested/10.wav
similarity index 100%
rename from tests/dataset_raw/44k/34j/nested/10.wav
rename to tests/dataset_raw/34j/nested/10.wav
diff --git a/tests/dataset_raw/44k/34j/nested/2.wav b/tests/dataset_raw/34j/nested/2.wav
similarity index 100%
rename from tests/dataset_raw/44k/34j/nested/2.wav
rename to tests/dataset_raw/34j/nested/2.wav
diff --git a/tests/dataset_raw/44k/34j/nested/3.wav b/tests/dataset_raw/34j/nested/3.wav
similarity index 100%
rename from tests/dataset_raw/44k/34j/nested/3.wav
rename to tests/dataset_raw/34j/nested/3.wav
diff --git a/tests/dataset_raw/44k/34j/nested/4.wav b/tests/dataset_raw/34j/nested/4.wav
similarity index 100%
rename from tests/dataset_raw/44k/34j/nested/4.wav
rename to tests/dataset_raw/34j/nested/4.wav
diff --git a/tests/dataset_raw/44k/34j/nested/5.wav b/tests/dataset_raw/34j/nested/5.wav
similarity index 100%
rename from tests/dataset_raw/44k/34j/nested/5.wav
rename to tests/dataset_raw/34j/nested/5.wav
diff --git a/tests/dataset_raw/44k/34j/nested/6.wav b/tests/dataset_raw/34j/nested/6.wav
similarity index 100%
rename from tests/dataset_raw/44k/34j/nested/6.wav
rename to tests/dataset_raw/34j/nested/6.wav
diff --git a/tests/dataset_raw/44k/34j/nested/7.wav b/tests/dataset_raw/34j/nested/7.wav
similarity index 100%
rename from tests/dataset_raw/44k/34j/nested/7.wav
rename to tests/dataset_raw/34j/nested/7.wav
diff --git a/tests/dataset_raw/44k/34j/nested/8.wav b/tests/dataset_raw/34j/nested/8.wav
similarity index 100%
rename from tests/dataset_raw/44k/34j/nested/8.wav
rename to tests/dataset_raw/34j/nested/8.wav
diff --git a/tests/dataset_raw/44k/34j/nested/9.wav b/tests/dataset_raw/34j/nested/9.wav
similarity index 100%
rename from tests/dataset_raw/44k/34j/nested/9.wav
rename to tests/dataset_raw/34j/nested/9.wav
diff --git a/tests/dataset_raw/44k/34j/11.wav b/tests/dataset_raw/44k/34j/11.wav
deleted file mode 100644
index 49dbbdd9..00000000
Binary files a/tests/dataset_raw/44k/34j/11.wav and /dev/null differ
diff --git a/tests/dataset_raw/44k/34j/12.wav b/tests/dataset_raw/44k/34j/12.wav
deleted file mode 100644
index 16ebe39b..00000000
Binary files a/tests/dataset_raw/44k/34j/12.wav and /dev/null differ
diff --git a/tests/dataset_raw/44k/34j/13.wav b/tests/dataset_raw/44k/34j/13.wav
deleted file mode 100644
index 117b3067..00000000
Binary files a/tests/dataset_raw/44k/34j/13.wav and /dev/null differ
diff --git a/tests/dataset_raw/44k/34j/14.wav b/tests/dataset_raw/44k/34j/14.wav
deleted file mode 100644
index 835d0087..00000000
Binary files a/tests/dataset_raw/44k/34j/14.wav and /dev/null differ
diff --git a/tests/dataset_raw/44k/34j/15.wav b/tests/dataset_raw/44k/34j/15.wav
deleted file mode 100644
index f5faa6a2..00000000
Binary files a/tests/dataset_raw/44k/34j/15.wav and /dev/null differ
diff --git a/tests/dataset_raw/44k/34j/16.wav b/tests/dataset_raw/44k/34j/16.wav
deleted file mode 100644
index 2a1d8d28..00000000
Binary files a/tests/dataset_raw/44k/34j/16.wav and /dev/null differ
diff --git a/tests/dataset_raw/44k/34j/17.wav b/tests/dataset_raw/44k/34j/17.wav
deleted file mode 100644
index c2d976c4..00000000
Binary files a/tests/dataset_raw/44k/34j/17.wav and /dev/null differ
diff --git a/tests/dataset_raw/44k/34j/18.wav b/tests/dataset_raw/44k/34j/18.wav
deleted file mode 100644
index cda8627f..00000000
Binary files a/tests/dataset_raw/44k/34j/18.wav and /dev/null differ
diff --git a/tests/dataset_raw/44k/34j/19.wav b/tests/dataset_raw/44k/34j/19.wav
deleted file mode 100644
index d3043f8e..00000000
Binary files a/tests/dataset_raw/44k/34j/19.wav and /dev/null differ
diff --git a/tests/dataset_raw/44k/34j/20.wav b/tests/dataset_raw/44k/34j/20.wav
deleted file mode 100644
index e1af9aec..00000000
Binary files a/tests/dataset_raw/44k/34j/20.wav and /dev/null differ
diff --git a/tests/dataset_raw/44k/34j/nested/1.wav b/tests/dataset_raw/44k/34j/nested/1.wav
deleted file mode 100644
index 1c12ee00..00000000
Binary files a/tests/dataset_raw/44k/34j/nested/1.wav and /dev/null differ
diff --git a/tests/dataset_raw/44k/34j/nested2/1.wav b/tests/dataset_raw/44k/34j/nested2/1.wav
deleted file mode 100644
index 1c12ee00..00000000
Binary files a/tests/dataset_raw/44k/34j/nested2/1.wav and /dev/null differ
diff --git a/tests/test_main.py b/tests/test_main.py
index 0e9a351f..87b26ee5 100644
--- a/tests/test_main.py
+++ b/tests/test_main.py
@@ -22,14 +22,13 @@ def test_infer(self):
             raise SkipTest("Skip inference test on CI")
         from so_vits_svc_fork.inference_main import infer  # noqa
 
-        # infer("tests/dataset_raw/44k/34j/1.wav", "tests/configs/config.json", "tests/logs/44k")
+        # infer("tests/dataset_raw/34j/1.wav", "tests/configs/config.json", "tests/logs/44k")
 
     def test_preprocess(self):
         from so_vits_svc_fork.preprocess_resample import preprocess_resample
 
-        preprocess_resample("tests/dataset_raw/44k", "tests/dataset/44k", 44100)
+        preprocess_resample("tests/dataset_raw", "tests/dataset/44k", 44100)
 
-    def test_preprocess_config(self):
         from so_vits_svc_fork.preprocess_flist_config import preprocess_config
 
         preprocess_config(
@@ -40,9 +39,8 @@ def test_preprocess_config(self):
             "tests/configs/config.json",
         )
 
-    def test_preprocess_hubert(self):
         if IS_CI:
-            raise SkipTest("Skip preprocessing test on CI")
+            raise SkipTest("Skip hubert and f0 test on CI")
         from so_vits_svc_fork.preprocess_hubert_f0 import preprocess_hubert_f0
 
         preprocess_hubert_f0("tests/dataset/44k", "tests/configs/44k/config.json")