diff --git a/rvc/infer/infer.py b/rvc/infer/infer.py
index 483ade96..4d314250 100644
--- a/rvc/infer/infer.py
+++ b/rvc/infer/infer.py
@@ -313,7 +313,9 @@ def convert_audio(
                     print(f"Converted audio chunk {len(converted_chunks)}")
 
             if split_audio:
-                audio_opt = merge_audio(chunks, converted_chunks, intervals, 16000, self.tgt_sr)
+                audio_opt = merge_audio(
+                    chunks, converted_chunks, intervals, 16000, self.tgt_sr
+                )
             else:
                 audio_opt = converted_chunks[0]
 
diff --git a/rvc/lib/algorithm/generators/refinegan.py b/rvc/lib/algorithm/generators/refinegan.py
index b27db8ed..c2aba01d 100644
--- a/rvc/lib/algorithm/generators/refinegan.py
+++ b/rvc/lib/algorithm/generators/refinegan.py
@@ -222,11 +222,11 @@ def __init__(
         self.dim = self.harmonic_num + 1
         self.sampling_rate = samp_rate
         self.voiced_threshold = voiced_threshold
-        
+
         self.merge = nn.Sequential(
             nn.Linear(self.dim, 1, bias=False),
             nn.Tanh(),
-        )        
+        )
 
     def _f02uv(self, f0):
         # generate uv signal
@@ -275,11 +275,12 @@ def forward(self, f0):
             noise = noise_amp * torch.randn_like(sine_waves)
 
             sine_waves = sine_waves * uv + noise
-        # correct DC offset    
+        # correct DC offset
         sine_waves = sine_waves - sine_waves.mean(dim=1, keepdim=True)
-        # merge with grad	
+        # merge with grad
         return self.merge(sine_waves)
-        
+
+
 class RefineGANGenerator(nn.Module):
     """
     RefineGAN generator for audio synthesis.
@@ -309,7 +310,7 @@ def __init__(
         num_mels: int = 128,
         start_channels: int = 16,
         gin_channels: int = 256,
-        checkpointing: bool =False,
+        checkpointing: bool = False,
     ):
         super().__init__()
         self.downsample_rates = downsample_rates
@@ -328,7 +329,7 @@ def __init__(
                 kernel_size=7,
                 stride=1,
                 padding=3,
-                bias=False
+                bias=False,
             )
         )
 
@@ -373,9 +374,7 @@ def __init__(
         for rate in upsample_rates:
             new_channels = channels // 2
 
-            self.upsample_blocks.append(
-                nn.Upsample(scale_factor=rate, mode="linear")
-            )
+            self.upsample_blocks.append(nn.Upsample(scale_factor=rate, mode="linear"))
 
             self.upsample_conv_blocks.append(
                 ParallelResBlock(
@@ -400,8 +399,10 @@ def __init__(
         )
 
     def forward(self, mel: torch.Tensor, f0: torch.Tensor, g: torch.Tensor = None):
-        
-        f0 = F.interpolate(f0.unsqueeze(1), size=mel.shape[-1] * self.upp, mode="linear")
+
+        f0 = F.interpolate(
+            f0.unsqueeze(1), size=mel.shape[-1] * self.upp, mode="linear"
+        )
         har_source = self.m_source(f0.transpose(1, 2)).transpose(1, 2)
 
         # expanding pitch source to 16 channels