// file: calculate_lpc_constants.h
//
// this is the constant file containing default parameters and
// command line options
//

// make sure definitions are made only once
//
#ifndef __CALCULATE_LPC_CONSTANTS
#define __CALCULATE_LPC_CONSTANTS

#ifndef __GLOBAL_CONSTANTS
#define __GLOBAL_CONSTANTS
#include "global_constants.h"
#endif

// the help file
//
#define CLPC_HELP_FILE "calculate_lpc.help"

// commandline identifiers
//
#define CLPC_HELP_OPT              "-h"
#define CLPC_INPUTFILE_OPT         "-i"
#define CLPC_WIN_SIZE_OPT          "-w"
#define CLPC_FRAME_SIZE_OPT        "-f"
#define CLPC_WIN_CENTER_OPT        "-c"
#define CLPC_SAMPLE_FREQ_OPT       "-s"
#define CLPC_NUM_CHANS_OPT         "-n"
#define CLPC_PREEMP_VAL_OPT        "-p"
#define CLPC_WIN_TYPE_OPT          "-t"
#define CLPC_LP_ORDER_OPT          "-lp"
#define CLPC_DFT_ORDER_OPT         "-dft"
#define CLPC_DEBUG_MODE_OPT        "-d"

// type of windows
//
#define CLPC_HAMMING_WIN           0
#define CLPC_RCTGL_WIN             1

#define CLPC_RCTGL_CONST           1

// default values
//
#define CLPC_DEFAULT_FRAME_SIZE    20    // msec
#define CLPC_DEFAULT_WIN_SIZE      30    // msec
#define CLPC_DEFAULT_WIN_CENTER    15    // msec
#define CLPC_DEFAULT_SAMPLE_FREQ   8000  // Hz
#define CLPC_DEFAULT_NUM_CHANS     1
#define CLPC_DEFAULT_PREEMP_VAL    0.95
#define CLPC_DEFAULT_WIN_TYPE      CLPC_HAMMING_WIN
#define CLPC_DEFAULT_LP_ORDER      16
#define CLPC_DEFAULT_DFT_ORDER     (int) (CLPC_DEFAULT_WIN_SIZE * CLPC_DEFAULT_SAMPLE_FREQ * CLPC_MSEC_TO_SEC)
#define CLPC_DEFAULT_DEBUG_MODE    DEBUG_NONE

// number of bytes per sample
//
#define CLPC_BYTES_PER_SAMPLE 2

// conversion factor
//
#define CLPC_MSEC_TO_SEC 0.001

// end of file
//
#endif