question: public void writeIntoSPTKLF0File ( String sptkFileName ) throws IOException { LEDataOutputStream lf0Data = new LEDataOutputStream ( new BufferedOutputStream ( new FileOutputStream ( sptkFileName ) ) ) ; for ( int i = 0 ; i < this . contour . length ; i ++ ) { double f0Val = contour [ i ] ; if ( contour [ i ] == 0.0f ) { lf0Data . writeFloat ( NEGATIVE_MAXIMUM ) ; } else { lf0Data . writeFloat ( ( float ) Math . log ( contour [ i ] ) ) ; } } lf0Data . flush ( ) ; lf0Data . close ( ) ; }
target:  write contour into a lf0 file in SPTK format