diff dsp/mfcc/MFCC.h @ 250:a106e551e9a4

...

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dsp/mfcc/MFCC.h	Thu Jan 10 15:16:08 2008 +0000
@@ -0,0 +1,51 @@
+#ifndef _LIB_MFCC_H
+#define _LIB_MFCC_H
+
+#define MFCC    6
+
+typedef struct mfcc_t {
+	
+	/* Filter bank parameters */
+	double  lowestFrequency; 
+	int     linearFilters; 
+	double  linearSpacing;
+	int     logFilters;
+	double  logSpacing;
+	
+	/* FFT length */
+	int     fftSize;
+	
+	/* Analysis window length*/
+	int     windowSize;
+	
+	int     totalFilters;
+	
+	/* Misc. */
+	int     samplingRate;
+	int     nceps;
+	
+	/* MFCC vector */
+	double  *ceps;
+	
+	double  **mfccDCTMatrix;
+	double  **mfccFilterWeights;
+	
+	/* The analysis window */
+	double  *window;
+	
+	/* For the FFT */
+	double* imagIn;		// always zero
+	double* realOut;
+	double* imagOut;
+	
+	/* Set if user want C0 */
+	int WANT_C0;
+	
+} mfcc_t;
+
+extern mfcc_t* init_mfcc(int fftSize, int nceps , int samplingRate, int WANT_C0);
+extern int     do_mfcc(mfcc_t* mfcc_p, double* frame, int length);
+extern void    close_mfcc(mfcc_t* mfcc_p);
+
+#endif
+