// file: $SPEECH_HOMEWORK4/hw4/class/snr_ratio/v1.0/signal_noise_ratio_constants.h
//
 
// make sure the definitions are made only once
//
#ifndef __ISIP_SNR_RATIO_CONSTANTS
#define __ISIP_SNR_RATIO_CONSTANTS

// isip include files
//
#ifndef __ISIP_INTEGRAL_CONSTANTS
#include <integral_constants.h>
#endif

// define the class name
//
#define SIGNAL_CLASS_NAME (char_1*)"Signal"

// define default values
//
#define SIGNAL_DEFAULT_NUM_CHANNELS (int_4)1
#define SIGNAL_DEFAULT_NUM_BYTES (int_4)2
#define SIGNAL_DEFAULT_SAMPLE_FREQUENCY (float_4)8000.0
#define SIGNAL_DEFAULT_SIGNAL_THRESHOLD (float_4)0.80
#define SIGNAL_DEFAULT_NOISE_THRESHOLD (float_4)0.20
#define SIGNAL_DEFAULT_FRAME_DURATION (float_4)5   // in msec
#define SIGNAL_DEFAULT_WINDOW_DURATION (float_4)30 // in msec
#define SIGNAL_DEFAULT_WINDOW_METHOD (int_4)1
#define SIGNAL_DEFAULT_PRE_EMPHASIZE (logical_1)ISIP_TRUE
#define SIGNAL_DEFAULT_PRE_EMPHASIZE_VALUE (float_4)0.95
#define SIGNAL_DEFAULT_NUM_BINS (int_4)10000
#define SIGNAL_DEFAULT_LP_ORDER (int_4)10
#define SIGNAL_DEFAULT_WINDOW_CENTER (float_4)15

// define value names
#define SIGNAL_NUM_CHANNELS_NAME (char_1*)"num_channels"
#define SIGNAL_NUM_BYTES_NAME (char_1*)"num_bytes"
#define SIGNAL_SAMPLE_FREQUENCY_NAME (char_1*)"sample_frequency"
#define SIGNAL_SIGNAL_THRESHOLD_NAME (char_1*)"signal_threshold"
#define SIGNAL_NOISE_THRESHOLD_NAME (char_1*)"noise_threshold"
#define SIGNAL_FRAME_DURATION_NAME (char_1*)"frame_duration"
#define SIGNAL_WINDOW_DURATION_NAME (char_1*)"window_duration"
#define SIGNAL_WINDOW_METHOD_NAME (char_1*)"window_method"
#define SIGNAL_PRE_EMPHASIZE_NAME (char_1*)"pre_emphasize"
#define SIGNAL_PRE_EMPHASIZE_VALUE_NAME (char_1*)"pre_emphasize_value"
#define SIGNAL_NUM_BINS_NAME (char_1*)"num_bins"
#define SIGNAL_DEBUG_LEVEL (char_1*)"debug_level"
#define SIGNAL_LP_ORDER_NAME (char_1*)"lp_order"
#define SIGNAL_WINDOW_CENTER (char_1*)"window_center"

// define windowing methods
//
#define SIGNAL_WINDOW_METHOD_NONE (int_4)0
#define SIGNAL_WINDOW_METHOD_HAMMING (int_4)1
#define SIGNAL_WINDOW_METHOD_RECTANGULAR (int_4)2
#define SIGNAL_WINDOW_METHOD_HAMMING_NAME (char_1*)"hamming"
#define SIGNAL_WINDOW_METHOD_RECTANGULAR_NAME (char_1*)"rectangular"
#define SIGNAL_WINDOW_METHOD_HAMMING_COEFF (float_4)0.54

// define pre_emphasize
//
#define SIGNAL_PRE_EMPHASIZE_ON (logical_1)ISIP_TRUE
#define SIGNAL_PRE_EMPHASIZE_OFF (logical_1)ISIP_FALSE
#define SIGNAL_PRE_EMPHASIZE_ON_STRING (char_1*)"on"
#define SIGNAL_PRE_EMPHASIZE_OFF_STRING (char_1*)"off"

// define some constants values
//
#define SIGNAL_NUMBER_MSEC_PER_SEC (int_4)1000
#define SIGNAL_BYTES_PER_SAMPLE (int_4)2

// define the comment character
//
#define SIGNAL_COMMENT (char_1)#

// end of file
//
#endif