sandbox/pitch: script fix for pitch extraction

git-svn-id: https://svn.code.sf.net/p/kaldi/code/sandbox/pitch@3191 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8

src/featbin/compute-kaldi-pitch-feats.cc

@@ -98,7 +98,7 @@ int main(int argc, char *argv[]) {
       }
 
       double tot = features.Sum();
-      if (features.NumRows() != 2 || KALDI_ISINF(tot) || KALDI_ISNAN(tot)) {
+      if (features.NumCols() != 2 || KALDI_ISINF(tot) || KALDI_ISNAN(tot)) {
         KALDI_WARN << "Pitch extraction failed for utterance " << utt
                    << ", num-rows is " << features.NumRows() << ", total is "
                    << tot;