diff --git a/lib/infer_pack/models.py b/lib/infer_pack/models.py
index ed72341..f94f5b1 100644
--- a/lib/infer_pack/models.py
+++ b/lib/infer_pack/models.py
@@ -414,13 +414,19 @@ class SourceModuleHnNSF(torch.nn.Module):
         self.l_tanh = torch.nn.Tanh()
 
     def forward(self, x, upp=None):
+        if hasattr(self,"ddtype")==False:
+            self.ddtype=self.l_linear.weight.dtype
         sine_wavs, uv, _ = self.l_sin_gen(x, upp)
-        if self.is_half:
-            sine_wavs = sine_wavs.half()
-        sine_merge = self.l_tanh(self.l_linear(sine_wavs.to(x)))
+        # 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.ddtype):
+            sine_wavs=sine_wavs.to(self.ddtype)
+        sine_merge = self.l_tanh(self.l_linear(sine_wavs))
         return sine_merge, None, None  # noise, uv
 
-
 class GeneratorNSF(torch.nn.Module):
     def __init__(
         self,