diff --git a/infer/lib/infer_pack/models.py b/infer/lib/infer_pack/models.py
index 8b1f715..b7d7b9b 100644
--- a/infer/lib/infer_pack/models.py
+++ b/infer/lib/infer_pack/models.py
@@ -1,5 +1,4 @@
 import math
-import logging
 from typing import Optional, Tuple, List
 
 import torch
@@ -7,8 +6,9 @@ from torch import nn
 from torch.nn import Conv1d, Conv2d, ConvTranspose1d
 from torch.nn import functional as F
 from torch.nn.utils import remove_weight_norm, spectral_norm, weight_norm
-from infer.lib.infer_pack import modules
+from rvc import residuals
 
+from rvc.norms import WN
 from rvc.utils import (
     get_padding,
     call_weight_data_normal_if_Conv,
@@ -22,6 +22,26 @@ has_xpu = bool(hasattr(torch, "xpu") and torch.xpu.is_available())
 
 
 class ResidualCouplingBlock(nn.Module):
+    class Flip(nn.Module):
+        """
+        torch.jit.script() Compiled functions
+        can't take variable number of arguments or
+        use keyword-only arguments with defaults
+        """
+        def forward(
+            self,
+            x: torch.Tensor,
+            x_mask: torch.Tensor,
+            g: Optional[torch.Tensor] = None,
+            reverse: bool = False,
+        ) -> Tuple[torch.Tensor, Optional[torch.Tensor]]:
+            x = torch.flip(x, [1])
+            if not reverse:
+                logdet = torch.zeros(x.size(0)).to(dtype=x.dtype, device=x.device)
+                return x, logdet
+            else:
+                return x, torch.zeros([1], device=x.device)
+
     def __init__(
         self,
         channels,
@@ -44,7 +64,7 @@ class ResidualCouplingBlock(nn.Module):
         self.flows = nn.ModuleList()
         for i in range(n_flows):
             self.flows.append(
-                modules.ResidualCouplingLayer(
+                residuals.ResidualCouplingLayer(
                     channels,
                     hidden_channels,
                     kernel_size,
@@ -54,7 +74,7 @@ class ResidualCouplingBlock(nn.Module):
                     mean_only=True,
                 )
             )
-            self.flows.append(modules.Flip())
+            self.flows.append(self.Flip())
 
     def forward(
         self,
@@ -108,7 +128,7 @@ class PosteriorEncoder(nn.Module):
         self.gin_channels = gin_channels
 
         self.pre = nn.Conv1d(in_channels, hidden_channels, 1)
-        self.enc = modules.WN(
+        self.enc = WN(
             hidden_channels,
             kernel_size,
             dilation_rate,
@@ -167,7 +187,7 @@ class Generator(torch.nn.Module):
         self.conv_pre = Conv1d(
             initial_channel, upsample_initial_channel, 7, 1, padding=3
         )
-        resblock = modules.ResBlock1 if resblock == "1" else modules.ResBlock2
+        resblock = residuals.ResBlock1 if resblock == "1" else residuals.ResBlock2
 
         self.ups = nn.ModuleList()
         for i, (u, k) in enumerate(zip(upsample_rates, upsample_kernel_sizes)):
@@ -215,7 +235,7 @@ class Generator(torch.nn.Module):
             x = x + self.cond(g)
 
         for i in range(self.num_upsamples):
-            x = F.leaky_relu(x, modules.LRELU_SLOPE)
+            x = F.leaky_relu(x, residuals.LRELU_SLOPE)
             x = self.ups[i](x)
             xs = None
             for j in range(self.num_kernels):
@@ -382,33 +402,21 @@ class SourceModuleHnNSF(torch.nn.Module):
         sine_amp=0.1,
         add_noise_std=0.003,
         voiced_threshod=0,
-        is_half=True,
     ):
         super(SourceModuleHnNSF, self).__init__()
 
         self.sine_amp = sine_amp
         self.noise_std = add_noise_std
-        self.is_half = is_half
         # to produce sine waveforms
         self.l_sin_gen = SineGen(
             sampling_rate, harmonic_num, sine_amp, add_noise_std, voiced_threshod
         )
-
         # to merge source harmonics into a single excitation
         self.l_linear = torch.nn.Linear(harmonic_num + 1, 1)
         self.l_tanh = torch.nn.Tanh()
-        # self.ddtype:int = -1
 
     def forward(self, x: torch.Tensor, upp: int = 1):
-        # if self.ddtype ==-1:
-        #     self.ddtype = self.l_linear.weight.dtype
-        sine_wavs, uv, _ = self.l_sin_gen(x, upp)
-        # print(x.dtype,sine_wavs.dtype,self.l_linear.weight.dtype)
-        # if self.is_half:
-        #     sine_wavs = sine_wavs.half()
-        # sine_merge = self.l_tanh(self.l_linear(sine_wavs.to(x)))
-        # print(sine_wavs.dtype,self.ddtype)
-        # if sine_wavs.dtype != self.l_linear.weight.dtype:
+        sine_wavs, _, _ = self.l_sin_gen(x, upp)
         sine_wavs = sine_wavs.to(dtype=self.l_linear.weight.dtype)
         sine_merge = self.l_tanh(self.l_linear(sine_wavs))
         return sine_merge, None, None  # noise, uv
@@ -426,7 +434,6 @@ class GeneratorNSF(torch.nn.Module):
         upsample_kernel_sizes,
         gin_channels,
         sr,
-        is_half=False,
     ):
         super(GeneratorNSF, self).__init__()
         self.num_kernels = len(resblock_kernel_sizes)
@@ -434,13 +441,13 @@ class GeneratorNSF(torch.nn.Module):
 
         self.f0_upsamp = torch.nn.Upsample(scale_factor=math.prod(upsample_rates))
         self.m_source = SourceModuleHnNSF(
-            sampling_rate=sr, harmonic_num=0, is_half=is_half
+            sampling_rate=sr, harmonic_num=0
         )
         self.noise_convs = nn.ModuleList()
         self.conv_pre = Conv1d(
             initial_channel, upsample_initial_channel, 7, 1, padding=3
         )
-        resblock = modules.ResBlock1 if resblock == "1" else modules.ResBlock2
+        resblock = residuals.ResBlock1 if resblock == "1" else residuals.ResBlock2
 
         self.ups = nn.ModuleList()
         for i, (u, k) in enumerate(zip(upsample_rates, upsample_kernel_sizes)):
@@ -486,7 +493,7 @@ class GeneratorNSF(torch.nn.Module):
 
         self.upp = math.prod(upsample_rates)
 
-        self.lrelu_slope = modules.LRELU_SLOPE
+        self.lrelu_slope = residuals.LRELU_SLOPE
 
     def forward(
         self,
@@ -584,7 +591,6 @@ class SynthesizerTrnMs256NSFsid(nn.Module):
         spk_embed_dim: int,
         gin_channels: int,
         sr: str | int,
-        **kwargs
     ):
         super(SynthesizerTrnMs256NSFsid, self).__init__()
         if isinstance(sr, str):
@@ -631,7 +637,6 @@ class SynthesizerTrnMs256NSFsid(nn.Module):
             upsample_kernel_sizes,
             gin_channels=gin_channels,
             sr=sr,
-            is_half=kwargs["is_half"],
         )
         self.enc_q = PosteriorEncoder(
             spec_channels,
@@ -764,7 +769,6 @@ class SynthesizerTrnMs768NSFsid(SynthesizerTrnMs256NSFsid):
         spk_embed_dim,
         gin_channels,
         sr,
-        **kwargs
     ):
         super(SynthesizerTrnMs768NSFsid, self).__init__(
             spec_channels,
@@ -785,7 +789,6 @@ class SynthesizerTrnMs768NSFsid(SynthesizerTrnMs256NSFsid):
             spk_embed_dim,
             gin_channels,
             sr,
-            **kwargs
         )
         del self.enc_p
         self.enc_p = TextEncoder(
@@ -812,7 +815,7 @@ class SynthesizerTrnMs256NSFsid_nono(nn.Module):
         n_layers,
         kernel_size,
         p_dropout,
-        resblock,
+        resblock: str,
         resblock_kernel_sizes,
         resblock_dilation_sizes,
         upsample_rates,
@@ -1095,7 +1098,7 @@ class DiscriminatorS(torch.nn.Module):
 
         for l in self.convs:
             x = l(x)
-            x = F.leaky_relu(x, modules.LRELU_SLOPE)
+            x = F.leaky_relu(x, residuals.LRELU_SLOPE)
             fmap.append(x)
         x = self.conv_post(x)
         fmap.append(x)
@@ -1179,7 +1182,7 @@ class DiscriminatorP(torch.nn.Module):
 
         for l in self.convs:
             x = l(x)
-            x = F.leaky_relu(x, modules.LRELU_SLOPE)
+            x = F.leaky_relu(x, residuals.LRELU_SLOPE)
             fmap.append(x)
         x = self.conv_post(x)
         fmap.append(x)
diff --git a/infer/lib/infer_pack/models_onnx.py b/infer/lib/infer_pack/models_onnx.py
index d0c735a..34b25de 100644
--- a/infer/lib/infer_pack/models_onnx.py
+++ b/infer/lib/infer_pack/models_onnx.py
@@ -79,7 +79,6 @@ class SynthesizerTrnMsNSFsidM(nn.Module):
             upsample_kernel_sizes,
             gin_channels=gin_channels,
             sr=sr,
-            is_half=kwargs["is_half"],
         )
         self.enc_q = PosteriorEncoder(
             spec_channels,
diff --git a/infer/lib/infer_pack/modules.py b/infer/lib/infer_pack/modules.py
deleted file mode 100644
index 95ffbfe..0000000
--- a/infer/lib/infer_pack/modules.py
+++ /dev/null
@@ -1,548 +0,0 @@
-import math
-from typing import Optional, Tuple
-
-import torch
-from torch import nn
-from torch.nn import Conv1d
-from torch.nn import functional as F
-from torch.nn.utils import remove_weight_norm, weight_norm
-
-from rvc.utils import (
-    get_padding,
-    call_weight_data_normal_if_Conv,
-    activate_add_tanh_sigmoid_multiply,
-)
-from rvc.transforms import piecewise_rational_quadratic_transform
-from rvc.norms import LayerNorm
-
-LRELU_SLOPE = 0.1
-
-
-class DDSConv(nn.Module):
-    """
-    Dialted and Depth-Separable Convolution
-    """
-
-    def __init__(self, channels, kernel_size, n_layers, p_dropout=0.0):
-        super(DDSConv, self).__init__()
-        self.channels = channels
-        self.kernel_size = kernel_size
-        self.n_layers = n_layers
-        self.p_dropout = float(p_dropout)
-
-        self.drop = nn.Dropout(float(p_dropout))
-        self.convs_sep = nn.ModuleList()
-        self.convs_1x1 = nn.ModuleList()
-        self.norms_1 = nn.ModuleList()
-        self.norms_2 = nn.ModuleList()
-        for i in range(n_layers):
-            dilation = kernel_size**i
-            padding = (kernel_size * dilation - dilation) // 2
-            self.convs_sep.append(
-                nn.Conv1d(
-                    channels,
-                    channels,
-                    kernel_size,
-                    groups=channels,
-                    dilation=dilation,
-                    padding=padding,
-                )
-            )
-            self.convs_1x1.append(nn.Conv1d(channels, channels, 1))
-            self.norms_1.append(LayerNorm(channels))
-            self.norms_2.append(LayerNorm(channels))
-
-    def forward(self, x, x_mask, g: Optional[torch.Tensor] = None):
-        if g is not None:
-            x = x + g
-        for i in range(self.n_layers):
-            y = self.convs_sep[i](x * x_mask)
-            y = self.norms_1[i](y)
-            y = F.gelu(y)
-            y = self.convs_1x1[i](y)
-            y = self.norms_2[i](y)
-            y = F.gelu(y)
-            y = self.drop(y)
-            x = x + y
-        return x * x_mask
-
-
-class WN(torch.nn.Module):
-    def __init__(
-        self,
-        hidden_channels: int,
-        kernel_size,
-        dilation_rate,
-        n_layers,
-        gin_channels=0,
-        p_dropout=0,
-    ):
-        super(WN, self).__init__()
-        assert kernel_size % 2 == 1
-        self.hidden_channels = hidden_channels
-        self.kernel_size = (kernel_size,)
-        self.dilation_rate = dilation_rate
-        self.n_layers = n_layers
-        self.gin_channels = gin_channels
-        self.p_dropout = float(p_dropout)
-
-        self.in_layers = torch.nn.ModuleList()
-        self.res_skip_layers = torch.nn.ModuleList()
-        self.drop = nn.Dropout(float(p_dropout))
-
-        if gin_channels != 0:
-            cond_layer = torch.nn.Conv1d(
-                gin_channels, 2 * hidden_channels * n_layers, 1
-            )
-            self.cond_layer = torch.nn.utils.weight_norm(cond_layer, name="weight")
-
-        for i in range(n_layers):
-            dilation = dilation_rate**i
-            padding = int((kernel_size * dilation - dilation) / 2)
-            in_layer = torch.nn.Conv1d(
-                hidden_channels,
-                2 * hidden_channels,
-                kernel_size,
-                dilation=dilation,
-                padding=padding,
-            )
-            in_layer = torch.nn.utils.weight_norm(in_layer, name="weight")
-            self.in_layers.append(in_layer)
-
-            # last one is not necessary
-            if i < n_layers - 1:
-                res_skip_channels = 2 * hidden_channels
-            else:
-                res_skip_channels = hidden_channels
-
-            res_skip_layer = torch.nn.Conv1d(hidden_channels, res_skip_channels, 1)
-            res_skip_layer = torch.nn.utils.weight_norm(res_skip_layer, name="weight")
-            self.res_skip_layers.append(res_skip_layer)
-
-    def forward(
-        self, x: torch.Tensor, x_mask: torch.Tensor, g: Optional[torch.Tensor] = None
-    ):
-        output = torch.zeros_like(x)
-
-        if g is not None:
-            g = self.cond_layer(g)
-
-        for i, (in_layer, res_skip_layer) in enumerate(
-            zip(self.in_layers, self.res_skip_layers)
-        ):
-            x_in: torch.Tensor = in_layer(x)
-            if g is not None:
-                cond_offset = i * 2 * self.hidden_channels
-                g_l = g[:, cond_offset : cond_offset + 2 * self.hidden_channels, :]
-            else:
-                g_l = torch.zeros_like(x_in)
-
-            acts = activate_add_tanh_sigmoid_multiply(x_in, g_l, self.hidden_channels)
-            acts = self.drop(acts)
-
-            res_skip_acts = res_skip_layer(acts)
-            if i < self.n_layers - 1:
-                res_acts = res_skip_acts[:, : self.hidden_channels, :]
-                x = (x + res_acts) * x_mask
-                output = output + res_skip_acts[:, self.hidden_channels :, :]
-            else:
-                output = output + res_skip_acts
-        return output * x_mask
-
-    def remove_weight_norm(self):
-        if self.gin_channels != 0:
-            torch.nn.utils.remove_weight_norm(self.cond_layer)
-        for l in self.in_layers:
-            torch.nn.utils.remove_weight_norm(l)
-        for l in self.res_skip_layers:
-            torch.nn.utils.remove_weight_norm(l)
-
-    def __prepare_scriptable__(self):
-        if self.gin_channels != 0:
-            for hook in self.cond_layer._forward_pre_hooks.values():
-                if (
-                    hook.__module__ == "torch.nn.utils.weight_norm"
-                    and hook.__class__.__name__ == "WeightNorm"
-                ):
-                    torch.nn.utils.remove_weight_norm(self.cond_layer)
-        for l in self.in_layers:
-            for hook in l._forward_pre_hooks.values():
-                if (
-                    hook.__module__ == "torch.nn.utils.weight_norm"
-                    and hook.__class__.__name__ == "WeightNorm"
-                ):
-                    torch.nn.utils.remove_weight_norm(l)
-        for l in self.res_skip_layers:
-            for hook in l._forward_pre_hooks.values():
-                if (
-                    hook.__module__ == "torch.nn.utils.weight_norm"
-                    and hook.__class__.__name__ == "WeightNorm"
-                ):
-                    torch.nn.utils.remove_weight_norm(l)
-        return self
-
-
-class ResBlock1(torch.nn.Module):
-    def __init__(self, channels, kernel_size=3, dilation=(1, 3, 5)):
-        super(ResBlock1, self).__init__()
-        self.convs1 = nn.ModuleList(
-            [
-                weight_norm(
-                    Conv1d(
-                        channels,
-                        channels,
-                        kernel_size,
-                        1,
-                        dilation=dilation[0],
-                        padding=get_padding(kernel_size, dilation[0]),
-                    )
-                ),
-                weight_norm(
-                    Conv1d(
-                        channels,
-                        channels,
-                        kernel_size,
-                        1,
-                        dilation=dilation[1],
-                        padding=get_padding(kernel_size, dilation[1]),
-                    )
-                ),
-                weight_norm(
-                    Conv1d(
-                        channels,
-                        channels,
-                        kernel_size,
-                        1,
-                        dilation=dilation[2],
-                        padding=get_padding(kernel_size, dilation[2]),
-                    )
-                ),
-            ]
-        )
-        self.convs1.apply(call_weight_data_normal_if_Conv)
-
-        self.convs2 = nn.ModuleList(
-            [
-                weight_norm(
-                    Conv1d(
-                        channels,
-                        channels,
-                        kernel_size,
-                        1,
-                        dilation=1,
-                        padding=get_padding(kernel_size, 1),
-                    )
-                ),
-                weight_norm(
-                    Conv1d(
-                        channels,
-                        channels,
-                        kernel_size,
-                        1,
-                        dilation=1,
-                        padding=get_padding(kernel_size, 1),
-                    )
-                ),
-                weight_norm(
-                    Conv1d(
-                        channels,
-                        channels,
-                        kernel_size,
-                        1,
-                        dilation=1,
-                        padding=get_padding(kernel_size, 1),
-                    )
-                ),
-            ]
-        )
-        self.convs2.apply(call_weight_data_normal_if_Conv)
-        self.lrelu_slope = LRELU_SLOPE
-
-    def forward(self, x: torch.Tensor, x_mask: Optional[torch.Tensor] = None):
-        for c1, c2 in zip(self.convs1, self.convs2):
-            xt = F.leaky_relu(x, self.lrelu_slope)
-            if x_mask is not None:
-                xt = xt * x_mask
-            xt = c1(xt)
-            xt = F.leaky_relu(xt, self.lrelu_slope)
-            if x_mask is not None:
-                xt = xt * x_mask
-            xt = c2(xt)
-            x = xt + x
-        if x_mask is not None:
-            x = x * x_mask
-        return x
-
-    def remove_weight_norm(self):
-        for l in self.convs1:
-            remove_weight_norm(l)
-        for l in self.convs2:
-            remove_weight_norm(l)
-
-    def __prepare_scriptable__(self):
-        for l in self.convs1:
-            for hook in l._forward_pre_hooks.values():
-                if (
-                    hook.__module__ == "torch.nn.utils.weight_norm"
-                    and hook.__class__.__name__ == "WeightNorm"
-                ):
-                    torch.nn.utils.remove_weight_norm(l)
-        for l in self.convs2:
-            for hook in l._forward_pre_hooks.values():
-                if (
-                    hook.__module__ == "torch.nn.utils.weight_norm"
-                    and hook.__class__.__name__ == "WeightNorm"
-                ):
-                    torch.nn.utils.remove_weight_norm(l)
-        return self
-
-
-class ResBlock2(torch.nn.Module):
-    def __init__(self, channels, kernel_size=3, dilation=(1, 3)):
-        super(ResBlock2, self).__init__()
-        self.convs = nn.ModuleList(
-            [
-                weight_norm(
-                    Conv1d(
-                        channels,
-                        channels,
-                        kernel_size,
-                        1,
-                        dilation=dilation[0],
-                        padding=get_padding(kernel_size, dilation[0]),
-                    )
-                ),
-                weight_norm(
-                    Conv1d(
-                        channels,
-                        channels,
-                        kernel_size,
-                        1,
-                        dilation=dilation[1],
-                        padding=get_padding(kernel_size, dilation[1]),
-                    )
-                ),
-            ]
-        )
-        self.convs.apply(call_weight_data_normal_if_Conv)
-        self.lrelu_slope = LRELU_SLOPE
-
-    def forward(self, x, x_mask: Optional[torch.Tensor] = None):
-        for c in self.convs:
-            xt = F.leaky_relu(x, self.lrelu_slope)
-            if x_mask is not None:
-                xt = xt * x_mask
-            xt = c(xt)
-            x = xt + x
-        if x_mask is not None:
-            x = x * x_mask
-        return x
-
-    def remove_weight_norm(self):
-        for l in self.convs:
-            remove_weight_norm(l)
-
-    def __prepare_scriptable__(self):
-        for l in self.convs:
-            for hook in l._forward_pre_hooks.values():
-                if (
-                    hook.__module__ == "torch.nn.utils.weight_norm"
-                    and hook.__class__.__name__ == "WeightNorm"
-                ):
-                    torch.nn.utils.remove_weight_norm(l)
-        return self
-
-
-class Log(nn.Module):
-    def forward(
-        self,
-        x: torch.Tensor,
-        x_mask: torch.Tensor,
-        g: Optional[torch.Tensor] = None,
-        reverse: bool = False,
-    ) -> Tuple[torch.Tensor, Optional[torch.Tensor]]:
-        if not reverse:
-            y = torch.log(torch.clamp_min(x, 1e-5)) * x_mask
-            logdet = torch.sum(-y, [1, 2])
-            return y, logdet
-        else:
-            x = torch.exp(x) * x_mask
-            return x
-
-
-class Flip(nn.Module):
-    # torch.jit.script() Compiled functions \
-    # can't take variable number of arguments or \
-    # use keyword-only arguments with defaults
-    def forward(
-        self,
-        x: torch.Tensor,
-        x_mask: torch.Tensor,
-        g: Optional[torch.Tensor] = None,
-        reverse: bool = False,
-    ) -> Tuple[torch.Tensor, Optional[torch.Tensor]]:
-        x = torch.flip(x, [1])
-        if not reverse:
-            logdet = torch.zeros(x.size(0)).to(dtype=x.dtype, device=x.device)
-            return x, logdet
-        else:
-            return x, torch.zeros([1], device=x.device)
-
-
-class ElementwiseAffine(nn.Module):
-    def __init__(self, channels):
-        super(ElementwiseAffine, self).__init__()
-        self.channels = channels
-        self.m = nn.Parameter(torch.zeros(channels, 1))
-        self.logs = nn.Parameter(torch.zeros(channels, 1))
-
-    def forward(self, x, x_mask, reverse=False, **kwargs):
-        if not reverse:
-            y = self.m + torch.exp(self.logs) * x
-            y = y * x_mask
-            logdet = torch.sum(self.logs * x_mask, [1, 2])
-            return y, logdet
-        else:
-            x = (x - self.m) * torch.exp(-self.logs) * x_mask
-            return x
-
-
-class ResidualCouplingLayer(nn.Module):
-    def __init__(
-        self,
-        channels,
-        hidden_channels,
-        kernel_size,
-        dilation_rate,
-        n_layers,
-        p_dropout=0,
-        gin_channels=0,
-        mean_only=False,
-    ):
-        assert channels % 2 == 0, "channels should be divisible by 2"
-        super(ResidualCouplingLayer, self).__init__()
-        self.channels = channels
-        self.hidden_channels = hidden_channels
-        self.kernel_size = kernel_size
-        self.dilation_rate = dilation_rate
-        self.n_layers = n_layers
-        self.half_channels = channels // 2
-        self.mean_only = mean_only
-
-        self.pre = nn.Conv1d(self.half_channels, hidden_channels, 1)
-        self.enc = WN(
-            hidden_channels,
-            kernel_size,
-            dilation_rate,
-            n_layers,
-            p_dropout=float(p_dropout),
-            gin_channels=gin_channels,
-        )
-        self.post = nn.Conv1d(hidden_channels, self.half_channels * (2 - mean_only), 1)
-        self.post.weight.data.zero_()
-        self.post.bias.data.zero_()
-
-    def forward(
-        self,
-        x: torch.Tensor,
-        x_mask: torch.Tensor,
-        g: Optional[torch.Tensor] = None,
-        reverse: bool = False,
-    ):
-        x0, x1 = torch.split(x, [self.half_channels] * 2, 1)
-        h = self.pre(x0) * x_mask
-        h = self.enc(h, x_mask, g=g)
-        stats = self.post(h) * x_mask
-        if not self.mean_only:
-            m, logs = torch.split(stats, [self.half_channels] * 2, 1)
-        else:
-            m = stats
-            logs = torch.zeros_like(m)
-
-        if not reverse:
-            x1 = m + x1 * torch.exp(logs) * x_mask
-            x = torch.cat([x0, x1], 1)
-            logdet = torch.sum(logs, [1, 2])
-            return x, logdet
-        else:
-            x1 = (x1 - m) * torch.exp(-logs) * x_mask
-            x = torch.cat([x0, x1], 1)
-            return x, torch.zeros([1])
-
-    def remove_weight_norm(self):
-        self.enc.remove_weight_norm()
-
-    def __prepare_scriptable__(self):
-        for hook in self.enc._forward_pre_hooks.values():
-            if (
-                hook.__module__ == "torch.nn.utils.weight_norm"
-                and hook.__class__.__name__ == "WeightNorm"
-            ):
-                torch.nn.utils.remove_weight_norm(self.enc)
-        return self
-
-
-class ConvFlow(nn.Module):
-    def __init__(
-        self,
-        in_channels,
-        filter_channels,
-        kernel_size,
-        n_layers,
-        num_bins=10,
-        tail_bound=5.0,
-    ):
-        super(ConvFlow, self).__init__()
-        self.in_channels = in_channels
-        self.filter_channels = filter_channels
-        self.kernel_size = kernel_size
-        self.n_layers = n_layers
-        self.num_bins = num_bins
-        self.tail_bound = tail_bound
-        self.half_channels = in_channels // 2
-
-        self.pre = nn.Conv1d(self.half_channels, filter_channels, 1)
-        self.convs = DDSConv(filter_channels, kernel_size, n_layers, p_dropout=0.0)
-        self.proj = nn.Conv1d(
-            filter_channels, self.half_channels * (num_bins * 3 - 1), 1
-        )
-        self.proj.weight.data.zero_()
-        self.proj.bias.data.zero_()
-
-    def forward(
-        self,
-        x: torch.Tensor,
-        x_mask: torch.Tensor,
-        g: Optional[torch.Tensor] = None,
-        reverse=False,
-    ):
-        x0, x1 = torch.split(x, [self.half_channels] * 2, 1)
-        h: torch.Tensor = self.pre(x0)
-        h = self.convs(h, x_mask, g=g)
-        h = self.proj(h) * x_mask
-
-        b, c, t = x0.shape
-        h = h.reshape(b, c, -1, t).permute(0, 1, 3, 2)  # [b, cx?, t] -> [b, c, t, ?]
-
-        unnormalized_widths = h[..., : self.num_bins] / math.sqrt(self.filter_channels)
-        unnormalized_heights = h[..., self.num_bins : 2 * self.num_bins] / math.sqrt(
-            self.filter_channels
-        )
-        unnormalized_derivatives = h[..., 2 * self.num_bins :]
-
-        x1, logabsdet = piecewise_rational_quadratic_transform(
-            x1,
-            unnormalized_widths,
-            unnormalized_heights,
-            unnormalized_derivatives,
-            inverse=reverse,
-            tails="linear",
-            tail_bound=self.tail_bound,
-        )
-
-        x = torch.cat([x0, x1], 1) * x_mask
-        logdet = torch.sum(logabsdet * x_mask, [1, 2])
-        if not reverse:
-            return x, logdet
-        else:
-            return x
diff --git a/infer/lib/jit/synthesizer.py b/infer/lib/jit/synthesizer.py
index b117989..a27180a 100644
--- a/infer/lib/jit/synthesizer.py
+++ b/infer/lib/jit/synthesizer.py
@@ -15,12 +15,12 @@ def get_synthesizer_ckpt(cpt, device=torch.device("cpu")):
     version = cpt.get("version", "v1")
     if version == "v1":
         if if_f0 == 1:
-            net_g = SynthesizerTrnMs256NSFsid(*cpt["config"], is_half=False)
+            net_g = SynthesizerTrnMs256NSFsid(*cpt["config"])
         else:
             net_g = SynthesizerTrnMs256NSFsid_nono(*cpt["config"])
     elif version == "v2":
         if if_f0 == 1:
-            net_g = SynthesizerTrnMs768NSFsid(*cpt["config"], is_half=False)
+            net_g = SynthesizerTrnMs768NSFsid(*cpt["config"])
         else:
             net_g = SynthesizerTrnMs768NSFsid_nono(*cpt["config"])
     del net_g.enc_q
diff --git a/rvc/attentions.py b/rvc/attentions.py
index a6d34f8..b6db6b6 100644
--- a/rvc/attentions.py
+++ b/rvc/attentions.py
@@ -9,15 +9,15 @@ from torch.nn import functional as F
 class MultiHeadAttention(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 = None,
+        heads_share: bool = True,
+        block_length: int | None = None,
+        proximal_bias: bool = False,
+        proximal_init: bool = False,
     ):
         super(MultiHeadAttention, self).__init__()
         assert channels % n_heads == 0
@@ -60,19 +60,30 @@ class MultiHeadAttention(nn.Module):
                 self.conv_k.weight.copy_(self.conv_q.weight)
                 self.conv_k.bias.copy_(self.conv_q.bias)
 
+    def __call__(
+        self,
+        x: torch.Tensor,
+        c: torch.Tensor,
+        attn_mask: Optional[torch.Tensor] = None,
+    ) -> torch.Tensor:
+        return super().__call__(x, c, attn_mask=attn_mask)
+
     def forward(
-        self, x: torch.Tensor, c: torch.Tensor, attn_mask: Optional[torch.Tensor] = None
-    ):
+        self,
+        x: torch.Tensor,
+        c: torch.Tensor,
+        attn_mask: Optional[torch.Tensor] = None,
+    ) -> torch.Tensor:
         q = self.conv_q(x)
         k = self.conv_k(c)
         v = self.conv_v(c)
 
-        x, _ = self.attention(q, k, v, mask=attn_mask)
+        x, _ = self._attention(q, k, v, mask=attn_mask)
 
         x = self.conv_o(x)
         return x
 
-    def attention(
+    def _attention(
         self,
         query: torch.Tensor,
         key: torch.Tensor,
@@ -149,7 +160,7 @@ class MultiHeadAttention(nn.Module):
         return ret
 
     def _get_relative_embeddings(self, relative_embeddings, length: int):
-        max_relative_position = 2 * self.window_size + 1
+        # max_relative_position = 2 * self.window_size + 1
         # Pad first before slice to avoid using cond ops.
         pad_length: int = max(length - (self.window_size + 1), 0)
         slice_start_position = max((self.window_size + 1) - length, 0)
@@ -217,13 +228,13 @@ class MultiHeadAttention(nn.Module):
 class FFN(nn.Module):
     def __init__(
         self,
-        in_channels,
-        out_channels,
-        filter_channels,
-        kernel_size,
-        p_dropout=0.0,
-        activation: str = None,
-        causal=False,
+        in_channels: int,
+        out_channels: int,
+        filter_channels: int,
+        kernel_size: int,
+        p_dropout: float = 0.0,
+        activation: str | None = None,
+        causal: bool = False,
     ):
         super(FFN, self).__init__()
         self.in_channels = in_channels
@@ -234,32 +245,29 @@ class FFN(nn.Module):
         self.activation = activation
         self.causal = causal
         self.is_activation = True if activation == "gelu" else False
-        # if causal:
-        #     self.padding = self._causal_padding
-        # else:
-        #     self.padding = self._same_padding
 
         self.conv_1 = nn.Conv1d(in_channels, filter_channels, kernel_size)
         self.conv_2 = nn.Conv1d(filter_channels, out_channels, kernel_size)
         self.drop = nn.Dropout(p_dropout)
 
-    def padding(self, x: torch.Tensor, x_mask: torch.Tensor) -> torch.Tensor:
-        if self.causal:
-            padding = self._causal_padding(x * x_mask)
-        else:
-            padding = self._same_padding(x * x_mask)
-        return padding
+    def __call__(self, x: torch.Tensor, x_mask: torch.Tensor) -> torch.Tensor:
+        return super().__call__(x, x_mask)
 
-    def forward(self, x: torch.Tensor, x_mask: torch.Tensor):
-        x = self.conv_1(self.padding(x, x_mask))
+    def forward(self, x: torch.Tensor, x_mask: torch.Tensor) -> torch.Tensor:
+        x = self.conv_1(self._padding(x, x_mask))
         if self.is_activation:
             x = x * torch.sigmoid(1.702 * x)
         else:
             x = torch.relu(x)
         x = self.drop(x)
 
-        x = self.conv_2(self.padding(x, x_mask))
+        x = self.conv_2(self._padding(x, x_mask))
         return x * x_mask
+    
+    def _padding(self, x: torch.Tensor, x_mask: torch.Tensor) -> torch.Tensor:
+        if self.causal:
+            return self._causal_padding(x * x_mask)
+        return self._same_padding(x * x_mask)
 
     def _causal_padding(self, x):
         if self.kernel_size == 1:
diff --git a/rvc/norms.py b/rvc/norms.py
index d93ebca..3463fb2 100644
--- a/rvc/norms.py
+++ b/rvc/norms.py
@@ -1,7 +1,10 @@
+from typing import Optional
+
 import torch
 from torch import nn
 from torch.nn import functional as F
 
+from .utils import activate_add_tanh_sigmoid_multiply
 
 class LayerNorm(nn.Module):
     def __init__(self, channels: int, eps: float = 1e-5):
@@ -16,3 +19,128 @@ class LayerNorm(nn.Module):
         x = x.transpose(1, -1)
         x = F.layer_norm(x, (self.channels,), self.gamma, self.beta, self.eps)
         return x.transpose(1, -1)
+
+class WN(torch.nn.Module):
+    def __init__(
+        self,
+        hidden_channels: int,
+        kernel_size: int,
+        dilation_rate: int,
+        n_layers: int,
+        gin_channels: int = 0,
+        p_dropout: int = 0,
+    ):
+        super(WN, self).__init__()
+        assert kernel_size % 2 == 1
+        self.hidden_channels = hidden_channels
+        self.kernel_size = (kernel_size,)
+        self.dilation_rate = dilation_rate
+        self.n_layers = n_layers
+        self.gin_channels = gin_channels
+        self.p_dropout = float(p_dropout)
+
+        self.in_layers = torch.nn.ModuleList()
+        self.res_skip_layers = torch.nn.ModuleList()
+        self.drop = nn.Dropout(float(p_dropout))
+
+        if gin_channels != 0:
+            cond_layer = torch.nn.Conv1d(
+                gin_channels, 2 * hidden_channels * n_layers, 1
+            )
+            self.cond_layer = torch.nn.utils.weight_norm(cond_layer, name="weight")
+
+        for i in range(n_layers):
+            dilation = dilation_rate**i
+            padding = int((kernel_size * dilation - dilation) / 2)
+            in_layer = torch.nn.Conv1d(
+                hidden_channels,
+                2 * hidden_channels,
+                kernel_size,
+                dilation=dilation,
+                padding=padding,
+            )
+            in_layer = torch.nn.utils.weight_norm(in_layer, name="weight")
+            self.in_layers.append(in_layer)
+
+            # last one is not necessary
+            if i < n_layers - 1:
+                res_skip_channels = 2 * hidden_channels
+            else:
+                res_skip_channels = hidden_channels
+
+            res_skip_layer = torch.nn.Conv1d(hidden_channels, res_skip_channels, 1)
+            res_skip_layer = torch.nn.utils.weight_norm(res_skip_layer, name="weight")
+            self.res_skip_layers.append(res_skip_layer)
+
+    def __call__(
+        self,
+        x: torch.Tensor,
+        x_mask: torch.Tensor,
+        g: Optional[torch.Tensor] = None,
+    ) -> torch.Tensor:
+        return super().__call__(x, x_mask, g=g)
+
+    def forward(
+        self,
+        x: torch.Tensor,
+        x_mask: torch.Tensor,
+        g: Optional[torch.Tensor] = None,
+    ) -> torch.Tensor:
+        output = torch.zeros_like(x)
+
+        if g is not None:
+            g = self.cond_layer(g)
+
+        for i, (in_layer, res_skip_layer) in enumerate(
+            zip(self.in_layers, self.res_skip_layers)
+        ):
+            x_in: torch.Tensor = in_layer(x)
+            if g is not None:
+                cond_offset = i * 2 * self.hidden_channels
+                g_l = g[:, cond_offset : cond_offset + 2 * self.hidden_channels, :]
+            else:
+                g_l = torch.zeros_like(x_in)
+
+            acts = activate_add_tanh_sigmoid_multiply(x_in, g_l, self.hidden_channels)
+            acts: torch.Tensor = self.drop(acts)
+
+            res_skip_acts: torch.Tensor = res_skip_layer(acts)
+            if i < self.n_layers - 1:
+                res_acts = res_skip_acts[:, : self.hidden_channels, :]
+                x = (x + res_acts) * x_mask
+                output = output + res_skip_acts[:, self.hidden_channels :, :]
+            else:
+                output = output + res_skip_acts
+        return output * x_mask
+
+    def remove_weight_norm(self):
+        if self.gin_channels != 0:
+            torch.nn.utils.remove_weight_norm(self.cond_layer)
+        for l in self.in_layers:
+            torch.nn.utils.remove_weight_norm(l)
+        for l in self.res_skip_layers:
+            torch.nn.utils.remove_weight_norm(l)
+
+    def __prepare_scriptable__(self):
+        if self.gin_channels != 0:
+            for hook in self.cond_layer._forward_pre_hooks.values():
+                if (
+                    hook.__module__ == "torch.nn.utils.weight_norm"
+                    and hook.__class__.__name__ == "WeightNorm"
+                ):
+                    torch.nn.utils.remove_weight_norm(self.cond_layer)
+        for l in self.in_layers:
+            for hook in l._forward_pre_hooks.values():
+                if (
+                    hook.__module__ == "torch.nn.utils.weight_norm"
+                    and hook.__class__.__name__ == "WeightNorm"
+                ):
+                    torch.nn.utils.remove_weight_norm(l)
+        for l in self.res_skip_layers:
+            for hook in l._forward_pre_hooks.values():
+                if (
+                    hook.__module__ == "torch.nn.utils.weight_norm"
+                    and hook.__class__.__name__ == "WeightNorm"
+                ):
+                    torch.nn.utils.remove_weight_norm(l)
+        return self
diff --git a/rvc/onnx/infer.py b/rvc/onnx/infer.py
index 80bbb6a..c9576a9 100644
--- a/rvc/onnx/infer.py
+++ b/rvc/onnx/infer.py
@@ -38,9 +38,9 @@ class ContentVec(Model):
         super().__init__(vec_path, device)
 
     def __call__(self, wav: np.ndarray[typing.Any, np.dtype]):
-        return self.__forward(wav)
+        return self.forward(wav)
 
-    def __forward(self, wav: np.ndarray[typing.Any, np.dtype]):
+    def forward(self, wav: np.ndarray[typing.Any, np.dtype]):
         if wav.ndim == 2:  # double channels
             wav = wav.mean(-1)
         assert wav.ndim == 1, wav.ndim
diff --git a/rvc/residuals.py b/rvc/residuals.py
new file mode 100644
index 0000000..09d6d02
--- /dev/null
+++ b/rvc/residuals.py
@@ -0,0 +1,260 @@
+from typing import Optional
+
+import torch
+from torch import nn
+from torch.nn import Conv1d
+from torch.nn import functional as F
+from torch.nn.utils import remove_weight_norm, weight_norm
+
+from .norms import WN
+from .utils import (
+    get_padding,
+    call_weight_data_normal_if_Conv,
+)
+
+LRELU_SLOPE = 0.1
+
+class ResBlock1(torch.nn.Module):
+    def __init__(self, channels, kernel_size=3, dilation=(1, 3, 5)):
+        super(ResBlock1, self).__init__()
+        self.convs1 = nn.ModuleList(
+            [
+                weight_norm(
+                    Conv1d(
+                        channels,
+                        channels,
+                        kernel_size,
+                        1,
+                        dilation=dilation[0],
+                        padding=get_padding(kernel_size, dilation[0]),
+                    )
+                ),
+                weight_norm(
+                    Conv1d(
+                        channels,
+                        channels,
+                        kernel_size,
+                        1,
+                        dilation=dilation[1],
+                        padding=get_padding(kernel_size, dilation[1]),
+                    )
+                ),
+                weight_norm(
+                    Conv1d(
+                        channels,
+                        channels,
+                        kernel_size,
+                        1,
+                        dilation=dilation[2],
+                        padding=get_padding(kernel_size, dilation[2]),
+                    )
+                ),
+            ]
+        )
+        self.convs1.apply(call_weight_data_normal_if_Conv)
+
+        self.convs2 = nn.ModuleList(
+            [
+                weight_norm(
+                    Conv1d(
+                        channels,
+                        channels,
+                        kernel_size,
+                        1,
+                        dilation=1,
+                        padding=get_padding(kernel_size, 1),
+                    )
+                ),
+                weight_norm(
+                    Conv1d(
+                        channels,
+                        channels,
+                        kernel_size,
+                        1,
+                        dilation=1,
+                        padding=get_padding(kernel_size, 1),
+                    )
+                ),
+                weight_norm(
+                    Conv1d(
+                        channels,
+                        channels,
+                        kernel_size,
+                        1,
+                        dilation=1,
+                        padding=get_padding(kernel_size, 1),
+                    )
+                ),
+            ]
+        )
+        self.convs2.apply(call_weight_data_normal_if_Conv)
+        self.lrelu_slope = LRELU_SLOPE
+
+    def forward(self, x: torch.Tensor, x_mask: Optional[torch.Tensor] = None):
+        for c1, c2 in zip(self.convs1, self.convs2):
+            xt = F.leaky_relu(x, self.lrelu_slope)
+            if x_mask is not None:
+                xt = xt * x_mask
+            xt = c1(xt)
+            xt = F.leaky_relu(xt, self.lrelu_slope)
+            if x_mask is not None:
+                xt = xt * x_mask
+            xt = c2(xt)
+            x = xt + x
+        if x_mask is not None:
+            x = x * x_mask
+        return x
+
+    def remove_weight_norm(self):
+        for l in self.convs1:
+            remove_weight_norm(l)
+        for l in self.convs2:
+            remove_weight_norm(l)
+
+    def __prepare_scriptable__(self):
+        for l in self.convs1:
+            for hook in l._forward_pre_hooks.values():
+                if (
+                    hook.__module__ == "torch.nn.utils.weight_norm"
+                    and hook.__class__.__name__ == "WeightNorm"
+                ):
+                    torch.nn.utils.remove_weight_norm(l)
+        for l in self.convs2:
+            for hook in l._forward_pre_hooks.values():
+                if (
+                    hook.__module__ == "torch.nn.utils.weight_norm"
+                    and hook.__class__.__name__ == "WeightNorm"
+                ):
+                    torch.nn.utils.remove_weight_norm(l)
+        return self
+
+
+class ResBlock2(torch.nn.Module):
+    def __init__(self, channels, kernel_size=3, dilation=(1, 3)):
+        super(ResBlock2, self).__init__()
+        self.convs = nn.ModuleList(
+            [
+                weight_norm(
+                    Conv1d(
+                        channels,
+                        channels,
+                        kernel_size,
+                        1,
+                        dilation=dilation[0],
+                        padding=get_padding(kernel_size, dilation[0]),
+                    )
+                ),
+                weight_norm(
+                    Conv1d(
+                        channels,
+                        channels,
+                        kernel_size,
+                        1,
+                        dilation=dilation[1],
+                        padding=get_padding(kernel_size, dilation[1]),
+                    )
+                ),
+            ]
+        )
+        self.convs.apply(call_weight_data_normal_if_Conv)
+        self.lrelu_slope = LRELU_SLOPE
+
+    def forward(self, x, x_mask: Optional[torch.Tensor] = None):
+        for c in self.convs:
+            xt = F.leaky_relu(x, self.lrelu_slope)
+            if x_mask is not None:
+                xt = xt * x_mask
+            xt = c(xt)
+            x = xt + x
+        if x_mask is not None:
+            x = x * x_mask
+        return x
+
+    def remove_weight_norm(self):
+        for l in self.convs:
+            remove_weight_norm(l)
+
+    def __prepare_scriptable__(self):
+        for l in self.convs:
+            for hook in l._forward_pre_hooks.values():
+                if (
+                    hook.__module__ == "torch.nn.utils.weight_norm"
+                    and hook.__class__.__name__ == "WeightNorm"
+                ):
+                    torch.nn.utils.remove_weight_norm(l)
+        return self
+
+
+class ResidualCouplingLayer(nn.Module):
+    def __init__(
+        self,
+        channels,
+        hidden_channels,
+        kernel_size,
+        dilation_rate,
+        n_layers,
+        p_dropout=0,
+        gin_channels=0,
+        mean_only=False,
+    ):
+        assert channels % 2 == 0, "channels should be divisible by 2"
+        super(ResidualCouplingLayer, self).__init__()
+        self.channels = channels
+        self.hidden_channels = hidden_channels
+        self.kernel_size = kernel_size
+        self.dilation_rate = dilation_rate
+        self.n_layers = n_layers
+        self.half_channels = channels // 2
+        self.mean_only = mean_only
+
+        self.pre = nn.Conv1d(self.half_channels, hidden_channels, 1)
+        self.enc = WN(
+            hidden_channels,
+            kernel_size,
+            dilation_rate,
+            n_layers,
+            p_dropout=float(p_dropout),
+            gin_channels=gin_channels,
+        )
+        self.post = nn.Conv1d(hidden_channels, self.half_channels * (2 - mean_only), 1)
+        self.post.weight.data.zero_()
+        self.post.bias.data.zero_()
+
+    def forward(
+        self,
+        x: torch.Tensor,
+        x_mask: torch.Tensor,
+        g: Optional[torch.Tensor] = None,
+        reverse: bool = False,
+    ):
+        x0, x1 = torch.split(x, [self.half_channels] * 2, 1)
+        h = self.pre(x0) * x_mask
+        h = self.enc(h, x_mask, g=g)
+        stats = self.post(h) * x_mask
+        if not self.mean_only:
+            m, logs = torch.split(stats, [self.half_channels] * 2, 1)
+        else:
+            m = stats
+            logs = torch.zeros_like(m)
+
+        if not reverse:
+            x1 = m + x1 * torch.exp(logs) * x_mask
+            x = torch.cat([x0, x1], 1)
+            logdet = torch.sum(logs, [1, 2])
+            return x, logdet
+        else:
+            x1 = (x1 - m) * torch.exp(-logs) * x_mask
+            x = torch.cat([x0, x1], 1)
+            return x, torch.zeros([1])
+
+    def remove_weight_norm(self):
+        self.enc.remove_weight_norm()
+
+    def __prepare_scriptable__(self):
+        for hook in self.enc._forward_pre_hooks.values():
+            if (
+                hook.__module__ == "torch.nn.utils.weight_norm"
+                and hook.__class__.__name__ == "WeightNorm"
+            ):
+                torch.nn.utils.remove_weight_norm(self.enc)
+        return self