diff --git a/gui.py b/gui.py
index e1d3a4a..43aa71a 100644
--- a/gui.py
+++ b/gui.py
@@ -623,7 +623,14 @@ if __name__ == "__main__":
                             # "use_jit": values["use_jit"],
                             "use_jit": False,
                             "use_pv": values["use_pv"],
-                            "f0method": ["pm", "dio", "harvest", "crepe", "rmvpe", "fcpe"][
+                            "f0method": [
+                                "pm",
+                                "dio",
+                                "harvest",
+                                "crepe",
+                                "rmvpe",
+                                "fcpe",
+                            ][
                                 [
                                     values["pm"],
                                     values["dio"],
@@ -728,7 +735,14 @@ if __name__ == "__main__":
             self.gui_config.rms_mix_rate = values["rms_mix_rate"]
             self.gui_config.index_rate = values["index_rate"]
             self.gui_config.n_cpu = values["n_cpu"]
-            self.gui_config.f0method = ["pm", "dio", "harvest", "crepe", "rmvpe", "fcpe"][
+            self.gui_config.f0method = [
+                "pm",
+                "dio",
+                "harvest",
+                "crepe",
+                "rmvpe",
+                "fcpe",
+            ][
                 [
                     values["pm"],
                     values["dio"],
diff --git a/infer/lib/rtrvc.py b/infer/lib/rtrvc.py
index 1a07b7d..b55a69b 100644
--- a/infer/lib/rtrvc.py
+++ b/infer/lib/rtrvc.py
@@ -307,7 +307,8 @@ class RVC:
                 self.f0_max,
                 self.sr,
             )
-        if filter_radius is None: filter_radius=3
+        if filter_radius is None:
+            filter_radius = 3
         f0 = self.harvest.compute_f0(x.cpu().numpy(), filter_radius=filter_radius)
         return self._get_f0_post(f0, f0_up_key)
 
@@ -342,7 +343,8 @@ class RVC:
                 device=self.device,
                 use_jit=self.use_jit,
             )
-        if filter_radius is None: filter_radius=0.03
+        if filter_radius is None:
+            filter_radius = 0.03
         return self._get_f0_post(
             self.rmvpe.compute_f0(x, filter_radius=filter_radius),
             f0_up_key,
diff --git a/rvc/layers/nsf.py b/rvc/layers/nsf.py
index 2d06a0c..5e9e35a 100644
--- a/rvc/layers/nsf.py
+++ b/rvc/layers/nsf.py
@@ -153,7 +153,9 @@ class NSFGenerator(torch.nn.Module):
         if n_res is not None:
             n_res = int(n_res)
             if n_res * self.upp != har_source.shape[-1]:
-                har_source = F.interpolate(har_source, size=n_res * self.upp, mode="linear")
+                har_source = F.interpolate(
+                    har_source, size=n_res * self.upp, mode="linear"
+                )
             if n_res != x.shape[-1]:
                 x = F.interpolate(x, size=n_res, mode="linear")
 
diff --git a/rvc/layers/synthesizers.py b/rvc/layers/synthesizers.py
index 7a9c704..474781e 100644
--- a/rvc/layers/synthesizers.py
+++ b/rvc/layers/synthesizers.py
@@ -186,7 +186,8 @@ class SynthesizerTrnMsNSFsid(nn.Module):
             head = int(skip_head)
             length = int(return_length)
             flow_head = head - 24
-            if flow_head < 0: flow_head = 0
+            if flow_head < 0:
+                flow_head = 0
             dec_head = head - flow_head
             m_p, logs_p, x_mask = self.enc_p(phone, pitch, phone_lengths, flow_head)
             z_p = (m_p + torch.exp(logs_p) * torch.randn_like(m_p) * 0.66666) * x_mask
@@ -208,11 +209,7 @@ class SynthesizerTrnMsNSFsid(nn.Module):
                 n_res=return_length2,
             )
         else:
-            o = self.dec(
-                z * x_mask,
-                g=g,
-                n_res=return_length2
-            )
+            o = self.dec(z * x_mask, g=g, n_res=return_length2)
         del x_mask, z
         return o  # , x_mask, (z, z_p, m_p, logs_p)