diff --git a/paddlespeech/t2s/datasets/get_feats.py b/paddlespeech/t2s/datasets/get_feats.py
index 6365dd7fc..ea273e245 100644
--- a/paddlespeech/t2s/datasets/get_feats.py
+++ b/paddlespeech/t2s/datasets/get_feats.py
@@ -138,7 +138,7 @@ class Pitch():
                       input: np.ndarray,
                       use_continuous_f0: bool=True,
                       use_log_f0: bool=True) -> np.ndarray:
-        input = input.astype(np.float32)
+        input = input.astype(np.float)
         frame_period = 1000 * self.hop_length / self.sr
         f0, timeaxis = pyworld.dio(
             input,