[src] Fix to bug in ivector extraction causing assert failure, thx: s…

…ray (#3364)
kaldi-asr · Jun 4, 2019 · b276d70 · b276d70
1 parent 9c734a5
commit b276d70
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/online2/online-ivector-feature.cc b/src/online2/online-ivector-feature.cc
@@ -195,6 +195,9 @@ void OnlineIvectorFeature::UpdateStatsForFrames(
   // Remove duplicates of frames.
   MergePairVectorSumming(&frame_weights);
 
+  if (frame_weights.empty())
+    return;
+
   int32 num_frames = static_cast<int32>(frame_weights.size());
   int32 feat_dim = lda_normalized_->Dim();
   Matrix<BaseFloat> feats(num_frames, feat_dim, kUndefined),