.\"     Title: 
    mkss
  
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.71.0 <http://docbook.sf.net/>
.\"      Date: 10/02/2008
.\"    Manual: 
.\"    Source: 
.\"
.TH "MKSS" "1" "10/02/2008" "" ""
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.SH "NAME"

    mkss
   \- calculate average spectrum for spectral subtraction
.SH "SYNOPSIS"
.HP 5
\fBmkss\fR [\fIoptions\fR...] {filename}
.SH "DESCRIPTION"
.PP

\fBmkss\fR
is a tool to estimate noise spectrum for spectral subtraction on Julius. It reads a few seconds of sound data from microphone input, calculate the average spectrum and save it to a file. The output file can be used as a noise spectrum data in Julius (option "\fB\-ssload\fR").
.PP
The recording will start immediately after startup. Sampling format is 16bit, monoral. If outpue file already exist, it will be overridden.
.SH "OPTIONS"
.PP
\fB \-freq \fR \fIHz\fR
.RS 3n
Sampling frequency in Hz (default: 16,000)
.RE
.PP
\fB \-len \fR \fImsec\fR
.RS 3n
capture length in milliseconds (default: 3000)
.RE
.PP
\fB \-fsize \fR \fIsample_num\fR
.RS 3n
frame size in number of samples (default: 400)
.RE
.PP
\fB \-fshift \fR \fIsample_num\fR
.RS 3n
frame shift in number of samples (default: 160)
.RE
.SH "SEE ALSO"
.PP

\fB julius \fR( 1 )
.SH "COPYRIGHT"
.PP
Copyright (c) 1997\-2000 Information\-technology Promotion Agency, Japan
.PP
Copyright (c) 1991\-2008 Kawahara Lab., Kyoto University
.PP
Copyright (c) 2000\-2005 Shikano Lab., Nara Institute of Science and Technology
.PP
Copyright (c) 2005\-2008 Julius project team, Nagoya Institute of Technology
.SH "LICENSE"
.PP
The same as Julius.