diff --git a/infer/modules/train/extract_f0_print.py b/infer/modules/train/extract_f0_print.py
index 87b6b14..d0c3c03 100644
--- a/infer/modules/train/extract_f0_print.py
+++ b/infer/modules/train/extract_f0_print.py
@@ -2,6 +2,7 @@ import os
 import sys
 import traceback
 from pathlib import Path
+import importlib.util
 
 from dotenv import load_dotenv
 
@@ -38,6 +39,8 @@ f0method = sys.argv[3]
 device = sys.argv[4]
 is_half = sys.argv[5] == "True"
 
+if importlib.util.find_spec("torch_directml") is not None:
+    import torch_directml # use side effect
 
 class FeatureInput(object):
     def __init__(self, is_half: bool, device="cpu", samplerate=16000, hop_size=160):
diff --git a/rvc/f0/f0.py b/rvc/f0/f0.py
index 0f615e6..c79c4f8 100644
--- a/rvc/f0/f0.py
+++ b/rvc/f0/f0.py
@@ -11,14 +11,14 @@ class F0Predictor(object):
         f0_min=50,
         f0_max=1100,
         sampling_rate=44100,
-        device: Optional[str] = None,
+        device: Optional[Union[str, torch.device]] = None,
     ):
         self.hop_length = hop_length
         self.f0_min = f0_min
         self.f0_max = f0_max
         self.sampling_rate = sampling_rate
-        if device is None:
-            device = "cuda:0" if torch.cuda.is_available() else "cpu"
+        if not device:
+            device = torch.device("cuda:0" if torch.cuda.is_available() else "cpu")
         self.device = device
 
     def compute_f0(
diff --git a/rvc/f0/mel.py b/rvc/f0/mel.py
index 2c06800..ee98b15 100644
--- a/rvc/f0/mel.py
+++ b/rvc/f0/mel.py
@@ -1,4 +1,4 @@
-from typing import Optional
+from typing import Optional, Union
 
 import torch
 import numpy as np
@@ -17,9 +17,9 @@ class MelSpectrogram(torch.nn.Module):
         hop_length: int,
         n_fft: Optional[int] = None,
         mel_fmin: int = 0,
-        mel_fmax: int = None,
+        mel_fmax: Optional[int] = None,
         clamp: float = 1e-5,
-        device=torch.device("cpu"),
+        device: Union[str, torch.device] = torch.device("cpu"),
     ):
         super().__init__()
         if n_fft is None:
diff --git a/rvc/f0/rmvpe.py b/rvc/f0/rmvpe.py
index 33eac0a..02d4f0c 100644
--- a/rvc/f0/rmvpe.py
+++ b/rvc/f0/rmvpe.py
@@ -1,6 +1,6 @@
 from io import BytesIO
 import os
-from typing import Any, Optional, Union
+from typing import Optional, Union
 
 import numpy as np
 import torch
diff --git a/rvc/layers/attentions.py b/rvc/layers/attentions.py
index 22b626d..3e1fd01 100644
--- a/rvc/layers/attentions.py
+++ b/rvc/layers/attentions.py
@@ -12,8 +12,8 @@ class MultiHeadAttention(nn.Module):
         channels: int,
         out_channels: int,
         n_heads: int,
+        window_size: int,
         p_dropout: float = 0.0,
-        window_size: Optional[int] = None,
         heads_share: bool = True,
         block_length: Optional[int] = None,
         proximal_bias: bool = False,
diff --git a/rvc/layers/encoders.py b/rvc/layers/encoders.py
index 1fc2478..eeaa3fd 100644
--- a/rvc/layers/encoders.py
+++ b/rvc/layers/encoders.py
@@ -42,8 +42,8 @@ class Encoder(nn.Module):
                     hidden_channels,
                     hidden_channels,
                     n_heads,
+                    window_size,
                     p_dropout=p_dropout,
-                    window_size=window_size,
                 )
             )
             self.norm_layers_1.append(LayerNorm(hidden_channels))
@@ -121,7 +121,7 @@ class TextEncoder(nn.Module):
     def __call__(
         self,
         phone: torch.Tensor,
-        pitch: torch.Tensor,
+        pitch: Optional[torch.Tensor],
         lengths: torch.Tensor,
         skip_head: Optional[int] = None,
     ) -> Tuple[torch.Tensor, torch.Tensor, torch.Tensor]:
@@ -135,7 +135,7 @@ class TextEncoder(nn.Module):
     def forward(
         self,
         phone: torch.Tensor,
-        pitch: torch.Tensor,
+        pitch: Optional[torch.Tensor],
         lengths: torch.Tensor,
         skip_head: Optional[int] = None,
     ) -> Tuple[torch.Tensor, torch.Tensor, torch.Tensor]:
diff --git a/rvc/layers/generators.py b/rvc/layers/generators.py
index 185f939..d78d6cd 100644
--- a/rvc/layers/generators.py
+++ b/rvc/layers/generators.py
@@ -46,6 +46,7 @@ class Generator(torch.nn.Module):
 
         self.resblocks = nn.ModuleList()
         resblock_module = ResBlock1 if resblock == "1" else ResBlock2
+        ch = 0
         for i in range(len(self.ups)):
             ch = upsample_initial_channel // (2 ** (i + 1))
             for k, d in zip(resblock_kernel_sizes, resblock_dilation_sizes):
diff --git a/rvc/layers/norms.py b/rvc/layers/norms.py
index 9418035..4b07143 100644
--- a/rvc/layers/norms.py
+++ b/rvc/layers/norms.py
@@ -30,7 +30,7 @@ class WN(torch.nn.Module):
         dilation_rate: int,
         n_layers: int,
         gin_channels: int = 0,
-        p_dropout: int = 0,
+        p_dropout: float = 0,
     ):
         super(WN, self).__init__()
         assert kernel_size % 2 == 1
diff --git a/rvc/layers/nsf.py b/rvc/layers/nsf.py
index 5e9e35a..22fd968 100644
--- a/rvc/layers/nsf.py
+++ b/rvc/layers/nsf.py
@@ -1,4 +1,4 @@
-from typing import Optional, List
+from typing import Optional, List, Union
 import math
 
 import torch
@@ -83,7 +83,7 @@ class NSFGenerator(torch.nn.Module):
         self.conv_pre = Conv1d(
             initial_channel, upsample_initial_channel, 7, 1, padding=3
         )
-        resblock = ResBlock1 if resblock == "1" else ResBlock2
+        resblockcls = ResBlock1 if resblock == "1" else ResBlock2
 
         self.ups = nn.ModuleList()
         for i, (u, k) in enumerate(zip(upsample_rates, upsample_kernel_sizes)):
@@ -114,12 +114,13 @@ class NSFGenerator(torch.nn.Module):
                 self.noise_convs.append(Conv1d(1, c_cur, kernel_size=1))
 
         self.resblocks = nn.ModuleList()
+        ch = 0
         for i in range(len(self.ups)):
-            ch: int = upsample_initial_channel // (2 ** (i + 1))
+            ch = upsample_initial_channel // (2 ** (i + 1))
             for j, (k, d) in enumerate(
                 zip(resblock_kernel_sizes, resblock_dilation_sizes)
             ):
-                self.resblocks.append(resblock(ch, k, d))
+                self.resblocks.append(resblockcls(ch, k, d))
 
         self.conv_post = Conv1d(ch, 1, 7, 1, padding=3, bias=False)
         self.ups.apply(call_weight_data_normal_if_Conv)
diff --git a/rvc/layers/residuals.py b/rvc/layers/residuals.py
index 4a135ce..45b3d11 100644
--- a/rvc/layers/residuals.py
+++ b/rvc/layers/residuals.py
@@ -20,7 +20,7 @@ class ResBlock1(torch.nn.Module):
         self,
         channels: int,
         kernel_size: int = 3,
-        dilation: List[int] = (1, 3, 5),
+        dilation: List[int] = [1, 3, 5],
     ):
         super(ResBlock1, self).__init__()
 
@@ -117,7 +117,7 @@ class ResBlock2(torch.nn.Module):
         self,
         channels: int,
         kernel_size=3,
-        dilation: List[int] = (1, 3),
+        dilation: List[int] = [1, 3],
     ):
         super(ResBlock2, self).__init__()
         self.convs = nn.ModuleList()
@@ -182,7 +182,7 @@ class ResidualCouplingLayer(nn.Module):
         kernel_size: int,
         dilation_rate: int,
         n_layers: int,
-        p_dropout: int = 0,
+        p_dropout: float = 0,
         gin_channels: int = 0,
         mean_only: bool = False,
     ):
diff --git a/rvc/layers/synthesizers.py b/rvc/layers/synthesizers.py
index 474781e..2bb7ea4 100644
--- a/rvc/layers/synthesizers.py
+++ b/rvc/layers/synthesizers.py
@@ -34,7 +34,7 @@ class SynthesizerTrnMsNSFsid(nn.Module):
         upsample_kernel_sizes: List[int],
         spk_embed_dim: int,
         gin_channels: int,
-        sr: Optional[Union[str, int]],
+        sr: Union[str, int],
         encoder_dim: int,
         use_f0: bool,
     ):
@@ -143,7 +143,7 @@ class SynthesizerTrnMsNSFsid(nn.Module):
                     torch.nn.utils.remove_weight_norm(self.enc_q)
         return self
 
-    @torch.jit.ignore
+    @torch.jit.ignore()
     def forward(
         self,
         phone: torch.Tensor,
@@ -155,18 +155,20 @@ class SynthesizerTrnMsNSFsid(nn.Module):
         pitchf: Optional[torch.Tensor] = None,
     ):  # 这里ds是id，[bs,1]
         # print(1,pitch.shape)#[bs,t]
-        g = self.emb_g(ds).unsqueeze(-1)  # [b, 256, 1]##1是t，广播的
+        embg = self.emb_g(ds).unsqueeze(-1)  # [b, 256, 1]##1是t，广播的
         m_p, logs_p, x_mask = self.enc_p(phone, pitch, phone_lengths)
-        z, m_q, logs_q, y_mask = self.enc_q(y, y_lengths, g=g)
-        z_p = self.flow(z, y_mask, g=g)
+        z, m_q, logs_q, y_mask = self.enc_q(y, y_lengths, g=embg)
+        z_p = self.flow(z, y_mask, g=embg)
         z_slice, ids_slice = rand_slice_segments_on_last_dim(
             z, y_lengths, self.segment_size
         )
-        if pitchf is not None:
+        if pitchf is not None and isinstance(self.dec, NSFGenerator):
             pitchf = slice_on_last_dim(pitchf, ids_slice, self.segment_size)
-            o = self.dec(z_slice, pitchf, g=g)
+            o = self.dec(z_slice, pitchf, g=embg) # type: ignore
+        elif isinstance(self.dec, Generator):
+            o = self.dec(z_slice, g=embg)
         else:
-            o = self.dec(z_slice, g=g)
+            raise KeyError(f"unknown dec type: {type(self.dec).__name__}")
         return o, ids_slice, x_mask, y_mask, (z, z_p, m_p, logs_p, m_q, logs_q)
 
     @torch.jit.export
@@ -201,15 +203,17 @@ class SynthesizerTrnMsNSFsid(nn.Module):
             z_p = (m_p + torch.exp(logs_p) * torch.randn_like(m_p) * 0.66666) * x_mask
             z = self.flow(z_p, x_mask, g=g, reverse=True)
         del z_p, m_p, logs_p
-        if pitchf is not None:
-            o = self.dec(
+        if pitchf is not None and isinstance(self.dec, NSFGenerator):
+           o = self.dec(
                 z * x_mask,
                 pitchf,
                 g=g,
                 n_res=return_length2,
             )
-        else:
+        elif isinstance(self.dec, Generator):
             o = self.dec(z * x_mask, g=g, n_res=return_length2)
+        else:
+            raise KeyError(f"unknown dec type: {type(self.dec).__name__}")
         del x_mask, z
         return o  # , x_mask, (z, z_p, m_p, logs_p)
 
@@ -326,7 +330,7 @@ class SynthesizerTrnMs256NSFsid_nono(SynthesizerTrnMsNSFsid):
         upsample_kernel_sizes: List[int],
         spk_embed_dim: int,
         gin_channels: int,
-        sr=None,
+        sr: Union[str, int],
     ):
         super().__init__(
             spec_channels,
@@ -346,6 +350,7 @@ class SynthesizerTrnMs256NSFsid_nono(SynthesizerTrnMsNSFsid):
             upsample_kernel_sizes,
             spk_embed_dim,
             gin_channels,
+            sr,
             256,
             False,
         )
@@ -371,7 +376,7 @@ class SynthesizerTrnMs768NSFsid_nono(SynthesizerTrnMsNSFsid):
         upsample_kernel_sizes: List[int],
         spk_embed_dim: int,
         gin_channels: int,
-        sr=None,
+        sr: Union[str, int],
     ):
         super().__init__(
             spec_channels,
@@ -391,6 +396,7 @@ class SynthesizerTrnMs768NSFsid_nono(SynthesizerTrnMsNSFsid):
             upsample_kernel_sizes,
             spk_embed_dim,
             gin_channels,
+            sr,
             768,
             False,
         )
diff --git a/rvc/layers/utils.py b/rvc/layers/utils.py
index 418578b..bf5a9ec 100644
--- a/rvc/layers/utils.py
+++ b/rvc/layers/utils.py
@@ -1,4 +1,4 @@
-from typing import List, Optional, Tuple, Iterator
+from typing import List, Optional, Tuple, Iterator, Union
 
 import torch
 
@@ -17,7 +17,7 @@ def get_padding(kernel_size: int, dilation=1) -> int:
 
 def slice_on_last_dim(
     x: torch.Tensor,
-    start_indices: List[int],
+    start_indices: Union[List[int], torch.Tensor],
     segment_size=4,
 ) -> torch.Tensor:
     new_shape = [*x.shape]
@@ -32,9 +32,9 @@ def slice_on_last_dim(
 
 def rand_slice_segments_on_last_dim(
     x: torch.Tensor,
-    x_lengths: int = None,
+    x_lengths: Optional[Union[int, torch.Tensor]] = None,
     segment_size=4,
-) -> Tuple[torch.Tensor, List[int]]:
+) -> Tuple[torch.Tensor, Union[List[int], torch.Tensor]]:
     b, _, t = x.size()
     if x_lengths is None:
         x_lengths = t
@@ -58,7 +58,7 @@ def activate_add_tanh_sigmoid_multiply(
 def sequence_mask(
     length: torch.Tensor,
     max_length: Optional[int] = None,
-) -> torch.BoolTensor:
+):
     if max_length is None:
         max_length = int(length.max())
     x = torch.arange(max_length, dtype=length.dtype, device=length.device)
diff --git a/rvc/onnx/synthesizer.py b/rvc/onnx/synthesizer.py
index e8bf516..9dafce8 100644
--- a/rvc/onnx/synthesizer.py
+++ b/rvc/onnx/synthesizer.py
@@ -1,4 +1,4 @@
-from typing import List, Optional, Union
+from typing import List, Union
 
 import torch
 
@@ -25,7 +25,7 @@ class SynthesizerTrnMsNSFsid(SynthesizerBase):
         upsample_kernel_sizes: List[int],
         spk_embed_dim: int,
         gin_channels: int,
-        sr: Optional[Union[str, int]],
+        sr: Union[str, int],
         encoder_dim: int,
     ):
         super().__init__(