modified decode_tri1 to generate lattices

git-svn-id: https://svn.code.sf.net/p/kaldi/code/trunk@261 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8

egs/wsj/s1/steps/decode_tri1_latgen.sh

+#!/bin/bash
+# Copyright 2010-2011 Microsoft Corporation
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+# THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
+# WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
+# MERCHANTABLITY OR NON-INFRINGEMENT.
+# See the Apache 2 License for the specific language governing permissions and
+# limitations under the License.
+
+
+# This script does the decoding of a single batch of test data (on one core).
+# It requires arguments.  It takes the graphdir and decoding directory,
+# and the job number which can actually be any string (even ""); it expects
+# a file $decode_dir/test${job_number}.scp to exist, and puts its output in
+# $decode_dir/${job_number}.tra
+
+
+if [ $# != 3 ]; then
+   echo "Usage: scripts/decode_tri1.sh <graph> <decode-dir> <job-number>"
+   exit 1;
+fi
+
+. path.sh || exit 1;
+
+acwt=0.0625
+beam=13.0
+max_active=7000
+model=exp/tri1/final.mdl
+graph=$1
+dir=$2
+job=$3
+scp=$dir/$job.scp
+feats="ark:add-deltas --print-args=false scp:$scp ark:- |"
+
+filenames="$scp $model $graph data/words.txt"
+for file in $filenames; do
+  if [ ! -f $file ] ; then
+    echo "No such file $file";
+    exit 1;
+  fi
+done
+
+echo running on `hostname` > $dir/decode${job}.log
+gmm-latgen-simple --beam=$beam --acoustic-scale=$acwt --word-symbol-table=data/words.txt $model $graph "$feats" ark,t:$dir/$job.lats ark,t:$dir/$job.tra ark,t:$dir/$job.ali 2>>$dir/decode${job}.log 
+