[scripts] 'steps/nnet3/make_bottleneck_features.sh', add online-cmvn support (kaldi-asr#4023)

Author: KarelVesely84

egs/wsj/s5/steps/nnet3/decode.sh

@@ -80,7 +80,7 @@ done
 
 sdata=$data/split$nj;
 if [ -f $srcdir/cmvn_opts ]; then
-    cmvn_opts=`cat $srcdir/cmvn_opts` 
+    cmvn_opts=`cat $srcdir/cmvn_opts`
 else
     cmvn_opts="--norm-means=false --norm-vars=false"
 fi
@@ -105,9 +105,10 @@ if [ -f $srcdir/online_cmvn ]; then online_cmvn=true
 else online_cmvn=false; fi
 
 if ! $online_cmvn; then
-echo "$0: feature type is raw"
+  echo "$0: feature type is raw"
   feats="ark,s,cs:apply-cmvn $cmvn_opts --utt2spk=ark:$sdata/JOB/utt2spk scp:$sdata/JOB/cmvn.scp scp:$sdata/JOB/feats.scp ark:- |"
 else
+  echo "$0: feature type is raw (apply-cmvn-online)"
   feats="ark,s,cs:apply-cmvn-online $cmvn_opts --spk2utt=ark:$sdata/JOB/spk2utt $srcdir/global_cmvn.stats scp:$sdata/JOB/feats.scp ark:- |"
 fi
 

egs/wsj/s5/steps/nnet3/make_bottleneck_features.sh

@@ -94,7 +94,17 @@ if [ ! -z "$ivector_dir" ];then
   steps/nnet2/check_ivectors_compatible.sh $nnetdir $ivector_dir || exit 1;
 fi
 
-feats="ark,s,cs:apply-cmvn $cmvn_opts --utt2spk=ark:$sdata/JOB/utt2spk scp:$sdata/JOB/cmvn.scp scp:$sdata/JOB/feats.scp ark:- |"
+## Set up features.
+if [ -f $nnetdir/online_cmvn ]; then online_cmvn=true
+else online_cmvn=false; fi
+
+if ! $online_cmvn; then
+  echo "$0: feature type is raw"
+  feats="ark,s,cs:apply-cmvn $cmvn_opts --utt2spk=ark:$sdata/JOB/utt2spk scp:$sdata/JOB/cmvn.scp scp:$sdata/JOB/feats.scp ark:- |"
+else
+  echo "$0: feature type is raw (apply-cmvn-online)"
+  feats="ark,s,cs:apply-cmvn-online $cmvn_opts --spk2utt=ark:$sdata/JOB/spk2utt $srcdir/global_cmvn.stats scp:$sdata/JOB/feats.scp ark:- |"
+fi
 ivector_feats="scp:utils/filter_scp.pl $sdata/JOB/utt2spk $ivector_dir/ivector_online.scp |"
 
 if [ $stage -le 1 ]; then