Flute acoustics: measurement, modelling and design - School of ...

APPENDIX B. PROGRAM LISTINGS 293
/*
PlayedImpedance.c
By Paul Dickens, 2006
Listing B.22: PlayedImpedance.c
Physical model of the acoustic impedance of a played flute.
*/
#include
#include
#include
#include
#include "Vector.h"
#include "ParseXML.h"
int parseCommandLine(int argc, char** argv, double* flo, double* fhi,
double* fres, char** input_filename, char** xml_filename);
int parseInputFile(Vector midiv, Vector holestringv,
char* input_filename);
/* Default spectrum range and resolution */
#define FLO 200.0
#define FHI 4000.0
#define FRES 2.0
int main(int argc, char** argv) {
double f, flo, fhi, fres;
char* input_filename;
char* xml_filename;
Vector midiv = createVector();
Vector holestringv = createVector();
Woodwind instrument;
int i;
int midi;
char* holestring;
double z_dB;
/* check correct usage */
if(!parseCommandLine(argc, argv, &flo, &fhi, &fres, &input_filename,
&xml_filename)) {
fprintf(stderr,
"Usage: PlayedImpedance [OPTIONS] \n\n");
fprintf(stderr, " Options:\n");
fprintf(stderr, "\t-l (default 200.0)\n");
fprintf(stderr, "\t-h (default 4000.0)\n");
fprintf(stderr, "\t-r (default 2.0)\n\n");
fprintf(stderr, " :\n");
fprintf(stderr,
"\t- Must be a tab-delimited list of midi numbers and\n");
fprintf(stderr, "\t holestrings, one set per line.\n\n");
return -1;
}
/* parse input file */
if(!parseInputFile(midiv, holestringv, input_filename)) {