[fix] better solution for handling empty result (#1796)

Xingchen Song(宋星辰)

2024-06-11 0bd1a4d6a9893e45438505514a063d9deee91f21

 funasr/models/specaug/time_warp.py

@@ -1,4 +1,5 @@
"""Time warp module."""

import torch

from funasr.models.transformer.utils.nets_utils import pad_list