fix pad_sequence, test=asr

paddlespeech/s2t/utils/tensor_utils.py

@@ -82,7 +82,7 @@ def pad_sequence(sequences: List[paddle.Tensor],
     max_size = sequences[0].size()
     # (TODO Hui Zhang): slice not supprot `end==start`
     # trailing_dims = max_size[1:]
-    trailing_dims = max_size[1:] if max_size.ndim >= 2 else ()
+    trailing_dims = tuple(max_size[1:].numpy().tolist()) if sequences[0].ndim >= 2 else ()
     max_len = max([s.shape[0] for s in sequences])
     if batch_first:
         out_dims = (len(sequences), max_len) + trailing_dims