addhtkheader.pl

#!/usr/bin/perl
# ----------------------------------------------------------------- #
#           The HMM-Based Speech Synthesis System (HTS)             #
#           developed by HTS Working Group                          #
#           http://hts.sp.nitech.ac.jp/                             #
# ----------------------------------------------------------------- #
#                                                                   #
#  Copyright (c) 2001-2011  Nagoya Institute of Technology          #
#                           Department of Computer Science          #
#                                                                   #
#                2001-2008  Tokyo Institute of Technology           #
#                           Interdisciplinary Graduate School of    #
#                           Science and Engineering                 #
#                                                                   #
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# conditions are met:                                               #
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if ( @ARGV < 5 ) {
   print "addhtkheader.pl sampling_rate frame_shift byte_per_frame HTK_feature_type infile\n";
   exit(0);
}

$samprate   = $ARGV[0];
$frameshift = $ARGV[1];
$byte       = $ARGV[2];
$type       = $ARGV[3];
$infile     = $ARGV[4];

# make HTK header
open( INPUT, "$infile" ) || die "Cannot open file: $infile";
@STAT = stat(INPUT);
read( INPUT, $DATA, $STAT[7] );
$nframe = $STAT[7] / $byte;
close(INPUT);

# number of frames in long
$NFRAME = pack( "l", $nframe );

# frame shift in long
$frameshift = 10000000 * $frameshift / $samprate;
$FRAMESHIFT = pack( "l", $frameshift );

# bytes of each frame in short
$BYTE = pack( "s", $byte );

# HTK feature type in short
$TYPE = pack( "s", $type );

# output header and data
print $NFRAME;
print $FRAMESHIFT;
print $BYTE;
print $TYPE;
print $DATA;