MKSS(1)                                                   MKSS(1)



NAME
       mkss - compute average spectrum from mic input for SS

SYNOPSIS
       mkss [options..] filename

DESCRIPTION
       mkss  is a tool for estimating noise spectrum for spectral
       subtraction on Julius.  It reads a few  seconds  of  sound
       data from microphone input, and saves the average spectrum
       to a file.  The output file can be used as a  noise  spec-
       trum data in Julius (option "-ssload").

       Output format is RAW (no header), 16bit (signed short, big
       endian), monoral.  If the file already exist, it  will  be
       overridden.

OPTIONS
       -freq threshold
              Sampling frequency (Hz, default=16000)

       -len msec
              length to record in milliseconds (default: 3000).

       -fsize samplenum
              frame size in number of samples (default: 400).

       -fshift samplenum
              frame shift in number of samples (default: 160).

USAGE
       Start mkss and stay quiet for 3 seconds.  Then the average
       noise spectrum will be recorded  to  the  specified  file.
       When  you start Julius, specify option "-ssload thatfile",
       and you can use microphone input  with  spectral  subtrac-
       tion.

SEE ALSO
       julius(1)

AUTHORS
       LEE Akinobu (NAIST, Japan)
       contact: julius@kuis.kyoto-u.ac.jp

LICENSE
       Same as Julius.



                              LOCAL                       MKSS(1)
