diff --git a/funasr/models/pooling/statistic_pooling.py b/funasr/models/pooling/statistic_pooling.py
index dc8c98f0d..f49347075 100644
--- a/funasr/models/pooling/statistic_pooling.py
+++ b/funasr/models/pooling/statistic_pooling.py
@@ -82,13 +82,16 @@ def windowed_statistic_pooling(
     tt = xs_pad.shape[2]
     num_chunk = int(math.ceil(tt / pooling_stride))
     pad = pooling_size // 2
-    features = F.pad(xs_pad, (0, 0, pad, pad), "reflect")
+    if len(xs_pad.shape == 4):
+        features = F.pad(xs_pad, (0, 0, pad, pad), "reflect")
+    else:
+        features = F.pad(xs_pad, (pad, pad), "reflect")
     stat_list = []
 
     for i in range(num_chunk):
         # B x C
         st, ed = i*pooling_stride, i*pooling_stride+pooling_size
-        stat = statistic_pooling(features[:, :, st: ed, :], pooling_dim=pooling_dim)
+        stat = statistic_pooling(features[:, :, st: ed], pooling_dim=pooling_dim)
         stat_list.append(stat.unsqueeze(2))
 
     # B x C x T