fix decode bug, test=doc (#2655)

speechx/examples/u2pp_ol/wenetspeech/local/decode.sh

@@ -9,6 +9,7 @@ nj=20
 mkdir -p $exp
 ckpt_dir=./data/model
 model_dir=$ckpt_dir/asr1_chunk_conformer_u2pp_wenetspeech_static_1.3.0.model/
+text=$data/test/text
 
 utils/run.pl JOB=1:$nj $data/split${nj}/JOB/decoder.log \
 ctc_prefix_beam_search_decoder_main \
@@ -20,6 +21,6 @@ ctc_prefix_beam_search_decoder_main \
     --feature_rspecifier=scp:$data/split${nj}/JOB/fbank.scp \
     --result_wspecifier=ark,t:$data/split${nj}/JOB/result_decode.ark
 
-cat $data/split${nj}/*/result_decode.ark > $exp/${label_file}
-utils/compute-wer.py --char=1 --v=1 $text $exp/${label_file} > $exp/${wer}
-tail -n 7 $exp/${wer}
+cat $data/split${nj}/*/result_decode.ark > $exp/aishell.decode.rsl
+utils/compute-wer.py --char=1 --v=1 $text $exp/aishell.decode.rsl > $exp/aishell.decode.err
+tail -n 7 $exp/aishell.decode.err