Create mfcc.h

Author: akriti-github

inference-app/src/mfcc.h

@@ -0,0 +1,29 @@
+#ifndef MFCC_H
+#define MFCC_H
+
+#include <stdint.h>
+#include <stddef.h>
+
+class MFCC {
+public:
+    MFCC(int num_mfcc_coeffs, int frame_size, int num_fft_points);
+    ~MFCC();
+
+    int init();
+    void extract_mfcc(const int16_t* input, float32_t* output);
+
+private:
+    int _num_mfcc_coeffs;
+    int _frame_size;
+    int _num_fft_points;
+    int16_t* _hanning_window;
+    int16_t* _mel_filterbank;
+
+    // Other private member variables and functions specific to the implementation
+
+    // Define any private functions used internally by the class
+    void apply_mel_filterbank(const int16_t* spectrum, float32_t* mel_energies);
+    void compute_mfcc(float32_t* mfcc_output, const float32_t* mel_energies);
+};
+
+#endif  // MFCC_H