diff --git a/egs/multi_en/s5/local/ami_ihm_data_prep.sh b/egs/multi_en/s5/local/ami_ihm_data_prep.sh
index 55f8bb22d41..ed1c882e862 100755
--- a/egs/multi_en/s5/local/ami_ihm_data_prep.sh
+++ b/egs/multi_en/s5/local/ami_ihm_data_prep.sh
@@ -78,7 +78,7 @@ sed -e 's?.*/??' -e 's?.wav??' $dir/wav.flist | \
 awk '{print $2}' $dir/segments | sort -u | join - $dir/wav1.scp >  $dir/wav2.scp
 
 #replace path with an appropriate sox command that select single channel only
-awk '{print $1" sox -c 1 -t wavpcm -s "$2" -r 8000 -t wavpcm - |"}' $dir/wav2.scp > $dir/wav.scp
+awk '{print $1" sox -c 1 -t wavpcm -e signed-integer "$2" -r 8000 -t wavpcm - |"}' $dir/wav2.scp > $dir/wav.scp
 
 # (1d) reco2file_and_channel
 cat $dir/wav.scp \
diff --git a/egs/multi_en/s5/local/chain/tuning/run_tdnn_lstm_1a.sh b/egs/multi_en/s5/local/chain/tuning/run_tdnn_lstm_1a.sh
index 62266334962..194592a822a 100755
--- a/egs/multi_en/s5/local/chain/tuning/run_tdnn_lstm_1a.sh
+++ b/egs/multi_en/s5/local/chain/tuning/run_tdnn_lstm_1a.sh
@@ -107,7 +107,7 @@ lang=data/${multi}/lang_${gmm}_chain
 lang_dir=data/lang_${multi}_${gmm}_fsh_sw1_tg
 rescore_lang_dir=data/lang_${multi}_${gmm}_fsh_sw1_fg
 
-local/nnet3/run_ivector_common.sh --stage $stage --nnet3-affix "$nnet3_affix" \
+local/nnet3/run_ivector_common.sh --stage $stage \
   --multi $multi \
   --gmm $gmm \
   --speed-perturb $speed_perturb || exit 1