diff --git a/rvc/lib/algorithm/attentions.py b/rvc/lib/algorithm/attentions.py
index 37367ada..5e991039 100644
--- a/rvc/lib/algorithm/attentions.py
+++ b/rvc/lib/algorithm/attentions.py
@@ -21,15 +21,15 @@ class MultiHeadAttention(torch.nn.Module):
 
     def __init__(
         self,
-        channels,
-        out_channels,
-        n_heads,
-        p_dropout=0.0,
-        window_size=None,
-        heads_share=True,
-        block_length=None,
-        proximal_bias=False,
-        proximal_init=False,
+        channels: int,
+        out_channels: int,
+        n_heads: int,
+        p_dropout: float = 0.0,
+        window_size: int = None,
+        heads_share: bool = True,
+        block_length: int = None,
+        proximal_bias: bool = False,
+        proximal_init: bool = False,
     ):
         super().__init__()
         assert (
@@ -201,13 +201,13 @@ class FFN(torch.nn.Module):
 
     def __init__(
         self,
-        in_channels,
-        out_channels,
-        filter_channels,
-        kernel_size,
-        p_dropout=0.0,
-        activation=None,
-        causal=False,
+        in_channels = int,
+        out_channels = int,
+        filter_channels = int,
+        kernel_size = int,
+        p_dropout: float = 0.0,
+        activation: str = None,
+        causal: bool = False,
     ):
         super().__init__()
         self.padding_fn = self._causal_padding if causal else self._same_padding
diff --git a/rvc/lib/algorithm/discriminators.py b/rvc/lib/algorithm/discriminators.py
index 99251ad6..04f78110 100644
--- a/rvc/lib/algorithm/discriminators.py
+++ b/rvc/lib/algorithm/discriminators.py
@@ -20,7 +20,7 @@ class MultiPeriodDiscriminator(torch.nn.Module):
             Defaults to False.
     """
 
-    def __init__(self, version, use_spectral_norm=False):
+    def __init__(self, version: str, use_spectral_norm: bool = False):
         super(MultiPeriodDiscriminator, self).__init__()
         periods = (
             [2, 3, 5, 7, 11, 17] if version == "v1" else [2, 3, 5, 7, 11, 17, 23, 37]
@@ -59,7 +59,7 @@ class DiscriminatorS(torch.nn.Module):
     convolutional layers that are applied to the input signal.
     """
 
-    def __init__(self, use_spectral_norm=False):
+    def __init__(self, use_spectral_norm: bool =False):
         super(DiscriminatorS, self).__init__()
         norm_f = spectral_norm if use_spectral_norm else weight_norm
         self.convs = torch.nn.ModuleList(
@@ -103,14 +103,12 @@ class DiscriminatorP(torch.nn.Module):
 
     Args:
         period (int): Period of the discriminator.
-        kernel_size (int): Kernel size of the convolutional layers.
-            Defaults to 5.
+        kernel_size (int): Kernel size of the convolutional layers. Defaults to 5.
         stride (int): Stride of the convolutional layers. Defaults to 3.
-        use_spectral_norm (bool): Whether to use spectral normalization.
-            Defaults to False.
+        use_spectral_norm (bool): Whether to use spectral normalization. Defaults to False.
     """
 
-    def __init__(self, period, kernel_size=5, stride=3, use_spectral_norm=False):
+    def __init__(self, period: int, kernel_size: int = 5, stride: int = 3, use_spectral_norm: bool = False):
         super(DiscriminatorP, self).__init__()
         self.period = period
         norm_f = spectral_norm if use_spectral_norm else weight_norm
diff --git a/rvc/lib/algorithm/encoders.py b/rvc/lib/algorithm/encoders.py
index d2fa8765..e742378a 100644
--- a/rvc/lib/algorithm/encoders.py
+++ b/rvc/lib/algorithm/encoders.py
@@ -24,13 +24,13 @@ class Encoder(torch.nn.Module):
 
     def __init__(
         self,
-        hidden_channels,
-        filter_channels,
-        n_heads,
-        n_layers,
-        kernel_size=1,
-        p_dropout=0.0,
-        window_size=10,
+        hidden_channels: int,
+        filter_channels: int,
+        n_heads: int,
+        n_layers: int,
+        kernel_size: int = 1,
+        p_dropout: float = 0.0,
+        window_size: int = 10,
     ):
         super().__init__()
         self.hidden_channels = hidden_channels
@@ -101,15 +101,15 @@ class TextEncoder(torch.nn.Module):
 
     def __init__(
         self,
-        out_channels,
-        hidden_channels,
-        filter_channels,
-        n_heads,
-        n_layers,
-        kernel_size,
-        p_dropout,
-        embedding_dim,
-        f0=True,
+        out_channels: int,
+        hidden_channels: int,
+        filter_channels: int,
+        n_heads: int,
+        n_layers: int,
+        kernel_size: int,
+        p_dropout: float,
+        embedding_dim: int,
+        f0: bool = True,
     ):
         super(TextEncoder, self).__init__()
         self.out_channels = out_channels
@@ -166,13 +166,13 @@ class PosteriorEncoder(torch.nn.Module):
 
     def __init__(
         self,
-        in_channels,
-        out_channels,
-        hidden_channels,
-        kernel_size,
-        dilation_rate,
-        n_layers,
-        gin_channels=0,
+        in_channels: int,
+        out_channels: int,
+        hidden_channels: int,
+        kernel_size: int,
+        dilation_rate: int,
+        n_layers: int,
+        gin_channels: int = 0,
     ):
         super(PosteriorEncoder, self).__init__()
         self.in_channels = in_channels
diff --git a/rvc/lib/algorithm/generators.py b/rvc/lib/algorithm/generators.py
index d4aea83c..e0c0ebbc 100644
--- a/rvc/lib/algorithm/generators.py
+++ b/rvc/lib/algorithm/generators.py
@@ -24,14 +24,13 @@ class Generator(torch.nn.Module):
 
     def __init__(
         self,
-        initial_channel,
-        resblock,
-        resblock_kernel_sizes,
-        resblock_dilation_sizes,
-        upsample_rates,
-        upsample_initial_channel,
-        upsample_kernel_sizes,
-        gin_channels=0,
+        initial_channel: int,
+        resblock_kernel_sizes: list,
+        resblock_dilation_sizes: list,
+        upsample_rates: list,
+        upsample_initial_channel: int,
+        upsample_kernel_sizes: list,
+        gin_channels: int = 0,
     ):
         super(Generator, self).__init__()
         self.num_kernels = len(resblock_kernel_sizes)
diff --git a/rvc/lib/algorithm/modules.py b/rvc/lib/algorithm/modules.py
index 8a2dad1a..55454abb 100644
--- a/rvc/lib/algorithm/modules.py
+++ b/rvc/lib/algorithm/modules.py
@@ -16,12 +16,12 @@ class WaveNet(torch.nn.Module):
 
     def __init__(
         self,
-        hidden_channels,
-        kernel_size,
+        hidden_channels: int,
+        kernel_size: int,
         dilation_rate,
-        n_layers,
-        gin_channels=0,
-        p_dropout=0,
+        n_layers: int,
+        gin_channels: int = 0,
+        p_dropout: int = 0,
     ):
         super().__init__()
         assert kernel_size % 2 == 1, "Kernel size must be odd for proper padding."
diff --git a/rvc/lib/algorithm/normalization.py b/rvc/lib/algorithm/normalization.py
index 878ec09d..a2a898cb 100644
--- a/rvc/lib/algorithm/normalization.py
+++ b/rvc/lib/algorithm/normalization.py
@@ -9,7 +9,7 @@ class LayerNorm(torch.nn.Module):
         eps (float, optional): Epsilon value for numerical stability. Defaults to 1e-5.
     """
 
-    def __init__(self, channels, eps=1e-5):
+    def __init__(self, channels: int, eps: float = 1e-5):
         super().__init__()
         self.eps = eps
         self.gamma = torch.nn.Parameter(torch.ones(channels))
diff --git a/rvc/lib/algorithm/nsf.py b/rvc/lib/algorithm/nsf.py
index 30bedf8c..ac3f1a42 100644
--- a/rvc/lib/algorithm/nsf.py
+++ b/rvc/lib/algorithm/nsf.py
@@ -24,12 +24,12 @@ class SourceModuleHnNSF(torch.nn.Module):
 
     def __init__(
         self,
-        sample_rate,
-        harmonic_num=0,
-        sine_amp=0.1,
-        add_noise_std=0.003,
-        voiced_threshod=0,
-        is_half=True,
+        sample_rate: int,
+        harmonic_num: int = 0,
+        sine_amp: float = 0.1,
+        add_noise_std: float = 0.003,
+        voiced_threshod: float = 0,
+        is_half: bool = True,
     ):
         super(SourceModuleHnNSF, self).__init__()
 
@@ -69,16 +69,15 @@ class GeneratorNSF(torch.nn.Module):
 
     def __init__(
         self,
-        initial_channel,
-        resblock,
-        resblock_kernel_sizes,
-        resblock_dilation_sizes,
-        upsample_rates,
-        upsample_initial_channel,
-        upsample_kernel_sizes,
-        gin_channels,
-        sr,
-        is_half=False,
+        initial_channel : int,
+        resblock_kernel_sizes: list,
+        resblock_dilation_sizes: list,
+        upsample_rates: list,
+        upsample_initial_channel: int,
+        upsample_kernel_sizes: list,
+        gin_channels: int,
+        sr: int,
+        is_half: bool = False,
     ):
         super(GeneratorNSF, self).__init__()
 
@@ -157,13 +156,13 @@ def forward(self, x, f0, g: Optional[torch.Tensor] = None):
         for i, (ups, noise_convs) in enumerate(zip(self.ups, self.noise_convs)):
             x = torch.nn.functional.leaky_relu(x, self.lrelu_slope)
             x = ups(x)
-            x += noise_convs(har_source) 
+            x += noise_convs(har_source)
 
             xs = sum(
                 self.resblocks[j](x)
                 for j in range(i * self.num_kernels, (i + 1) * self.num_kernels)
             )
-            x = xs / self.num_kernels 
+            x = xs / self.num_kernels
 
         x = torch.nn.functional.leaky_relu(x)
         x = torch.tanh(self.conv_post(x))
diff --git a/rvc/lib/algorithm/residuals.py b/rvc/lib/algorithm/residuals.py
index c82612a4..6b1bf5ed 100644
--- a/rvc/lib/algorithm/residuals.py
+++ b/rvc/lib/algorithm/residuals.py
@@ -1,4 +1,4 @@
-from typing import Optional
+from typing import Optional, Tuple
 import torch
 from torch.nn.utils import remove_weight_norm
 from torch.nn.utils.parametrizations import weight_norm
@@ -27,7 +27,7 @@ def apply_mask(tensor, mask):
 
 
 class ResBlockBase(torch.nn.Module):
-    def __init__(self, channels, kernel_size, dilations):
+    def __init__(self, channels: int, kernel_size: int, dilations: Tuple[int]):
         super(ResBlockBase, self).__init__()
         self.convs1 = torch.nn.ModuleList(
             [create_conv1d_layer(channels, kernel_size, d) for d in dilations]
@@ -55,7 +55,7 @@ def remove_weight_norm(self):
 
 
 class ResBlock(ResBlockBase):
-    def __init__(self, channels, kernel_size=3, dilation=(1, 3, 5)):
+    def __init__(self, channels: int, kernel_size: int = 3, dilation: Tuple[int] = (1, 3, 5)):
         super(ResBlock, self).__init__(channels, kernel_size, dilation)
 
 
@@ -95,13 +95,13 @@ class ResidualCouplingBlock(torch.nn.Module):
 
     def __init__(
         self,
-        channels,
-        hidden_channels,
-        kernel_size,
-        dilation_rate,
-        n_layers,
-        n_flows=4,
-        gin_channels=0,
+        channels: int,
+        hidden_channels: int,
+        kernel_size: int,
+        dilation_rate: int,
+        n_layers: int,
+        n_flows: int = 4,
+        gin_channels: int = 0,
     ):
         super(ResidualCouplingBlock, self).__init__()
         self.channels = channels
@@ -176,14 +176,14 @@ class ResidualCouplingLayer(torch.nn.Module):
 
     def __init__(
         self,
-        channels,
-        hidden_channels,
-        kernel_size,
-        dilation_rate,
-        n_layers,
-        p_dropout=0,
-        gin_channels=0,
-        mean_only=False,
+        channels: int,
+        hidden_channels: int,
+        kernel_size: int,
+        dilation_rate: int,
+        n_layers: int,
+        p_dropout: float = 0,
+        gin_channels: int = 0,
+        mean_only: bool = False,
     ):
         assert channels % 2 == 0, "channels should be divisible by 2"
         super().__init__()
@@ -210,7 +210,7 @@ def __init__(
         self.post.weight.data.zero_()
         self.post.bias.data.zero_()
 
-    def forward(self, x, x_mask, g=None, reverse=False):
+    def forward(self, x: torch.Tensor, x_mask: torch.Tensor, g: Optional[torch.Tensor] = None, reverse: bool = False):
         """Forward pass.
 
         Args:
diff --git a/rvc/lib/algorithm/synthesizers.py b/rvc/lib/algorithm/synthesizers.py
index 8920beae..e69f08eb 100644
--- a/rvc/lib/algorithm/synthesizers.py
+++ b/rvc/lib/algorithm/synthesizers.py
@@ -37,26 +37,25 @@ class Synthesizer(torch.nn.Module):
 
     def __init__(
         self,
-        spec_channels,
-        segment_size,
-        inter_channels,
-        hidden_channels,
-        filter_channels,
-        n_heads,
-        n_layers,
-        kernel_size,
-        p_dropout,
-        resblock,
-        resblock_kernel_sizes,
-        resblock_dilation_sizes,
-        upsample_rates,
-        upsample_initial_channel,
-        upsample_kernel_sizes,
-        spk_embed_dim,
-        gin_channels,
-        sr,
-        use_f0,
-        text_enc_hidden_dim=768,
+        spec_channels: int,
+        segment_size: int,
+        inter_channels: int,
+        hidden_channels: int,
+        filter_channels: int,
+        n_heads: int,
+        n_layers: int,
+        kernel_size: int,
+        p_dropout: float,
+        resblock_kernel_sizes: list,
+        resblock_dilation_sizes: list,
+        upsample_rates: list,
+        upsample_initial_channel: int,
+        upsample_kernel_sizes: list,
+        spk_embed_dim: int,
+        gin_channels: int,
+        sr: int,
+        use_f0: bool,
+        text_enc_hidden_dim: int = 768,
         **kwargs,
     ):
         super().__init__()
@@ -79,7 +78,6 @@ def __init__(
         if use_f0:
             self.dec = GeneratorNSF(
                 inter_channels,
-                resblock,
                 resblock_kernel_sizes,
                 resblock_dilation_sizes,
                 upsample_rates,
@@ -92,7 +90,6 @@ def __init__(
         else:
             self.dec = Generator(
                 inter_channels,
-                resblock,
                 resblock_kernel_sizes,
                 resblock_dilation_sizes,
                 upsample_rates,