fix (#4071)

zxcd · web-flow · commit e154b8f92647 · 2025-05-14T19:02:10.000+08:00
diff --git a/paddlespeech/t2s/modules/tacotron2/attentions.py b/paddlespeech/t2s/modules/tacotron2/attentions.py
@@ -173,6 +173,8 @@ def forward(
             att_prev = 1.0 - make_pad_mask(enc_hs_len)
             att_prev = att_prev / enc_hs_len.unsqueeze(-1).astype(
                 att_prev.dtype)
+        else:
+            att_prev.unsqueeze(-1)
 
         # att_prev: (utt, frame) -> (utt, 1, 1, frame)
         # -> (utt, att_conv_chans, 1, frame)
