Diff: main.cpp

Revision:

0:534d6a8e9c27

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Apr 29 19:57:04 2020 +0000
@@ -0,0 +1,40 @@
+#include "mbed.h"
+#include "mfcc.h"
+
+#define SAMP_FREQ 16000
+#define MFCC_DEC_BITS 2
+#define FRAME_SHIFT_MS 40
+#define FRAME_SHIFT ((int16_t)(SAMP_FREQ * 0.001 * FRAME_SHIFT_MS))
+#define NUM_FRAMES 25
+#define NUM_MFCC_COEFFS 10
+#define MFCC_BUFFER_SIZE (NUM_FRAMES*NUM_MFCC_COEFFS)
+#define FRAME_LEN_MS 40
+#define FRAME_LEN ((int16_t)(SAMP_FREQ * 0.001 * FRAME_LEN_MS))
+
+DigitalOut led(LED1);
+
+int main()
+{
+    Serial pc (USBTX, USBRX);
+    pc.baud(9600);
+    
+    MFCC* mfcc = new MFCC(NUM_MFCC_COEFFS, FRAME_LEN, MFCC_DEC_BITS);
+    
+    q7_t* mfcc_buffer = new q7_t[NUM_FRAMES*NUM_MFCC_COEFFS];
+    
+    int16_t* audio_data = new int16_t[FRAME_LEN*NUM_FRAMES];
+      
+    //int32_t mfcc_buffer_head = (num_frames-recording_win)*num_mfcc_features;
+    int32_t mfcc_buffer_head = 0;
+    
+    for (uint16_t f = 0; f < FRAME_LEN * NUM_FRAMES; f++) {
+        mfcc->mfcc_compute(audio_data,&mfcc_buffer[mfcc_buffer_head]);
+        mfcc_buffer_head += NUM_MFCC_COEFFS;
+    }
+
+    while(1) {
+        wait(1); // 1 second
+        led = !led; // Toggle LED
+        printf("%d.2", &mfcc_buffer);
+    }
+}