fix normalizer bug

be3a2a50 · Yang Zhou · 6c2158e8 · be3a2a50
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speechx/speechx/frontend/normalizer.cc speechx/speechx/frontend/normalizer.cc +1 -1

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--- a/speechx/speechx/frontend/normalizer.cc
+++ b/speechx/speechx/frontend/normalizer.cc
@@ -107,7 +107,7 @@ void CMVN::Accept(const kaldi::VectorBase<kaldi::BaseFloat>& inputs) {
 }

 bool CMVN::Read(kaldi::Vector<BaseFloat>* feats) {
-    if (base_extractor_->Read(feats) == false) {
+    if (base_extractor_->Read(feats) == false || feats->Dim() == 0) {
        return false;
    }
    Compute(feats);