diff --git a/tortoise/api.py b/tortoise/api.py
index 8a010c2..7188a4d 100644
--- a/tortoise/api.py
+++ b/tortoise/api.py
@@ -285,7 +285,7 @@ class TextToSpeech:
                 sample = torchaudio.functional.resample(sample, 22050, 24000)
                 sample = pad_or_truncate(sample, 102400)
                 cond_mel = wav_to_univnet_mel(sample.to(self.device), do_normalization=False,
-                                              device=self.device, stft=self.stft)
+                                              device=self.device)
                 diffusion_conds.append(cond_mel)
             diffusion_conds = torch.stack(diffusion_conds, dim=1)