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

APPENDIX B. PROGRAM LISTINGS 207
/*
Analysis.c
By Andrew Botros, 2001-2004
Modified by Paul Dickens, 2006
Listing B.5: Analysis.c
Analyses an acoustic impedance spectrum for playable
notes. See Analysis.h for interface details.
*/
#include
#include
#include
#include
#include "Note.h"
#include "Vector.h"
#include "ParseImpedance.h"
#include "Minima.h"
#include "Analysis.h"
#include "Point.h"
void Analysis(char* filename, int applypitchcorrection,
int displayharmonicity, AnalysisType at) {
Vector fileData = createVector(), seriesData, minv;
int midi;
Minimum m;
int i;
int series;
/* read and parse data file into a Vector of Vectors of Points */
if(!parseImpedanceFile(fileData, filename)) {
fprintf(stderr, "AnalyseNotes error: ");
fprintf(stderr, "AnalyseNotes failed to parse impedance file.\n");
return;
}
for (series = 0; series < sizeVector(fileData); series++) {
seriesData = (Vector)elementAt(fileData, series);
midi = *((int*)elementAt(seriesData, 0));
popFront(seriesData);
/* evaluate all minima in the data */
minv = minima(seriesData);
/* print MIDI number */
printf("%d\t", midi);
/* determine playable minima */
for(i = 0; i < sizeVector(minv); i++) {
m = (Minimum)elementAt(minv, i);
/* evaluate musical note from frequency (do not round) */
m->note = note(m->f, 0);
if(m->note->midi == midi)
analyseNote(m, applypitchcorrection, displayharmonicity,
at == NOTES);
}