Exponential smoothing FFT:n arvoille. Rauhoittaa piikkien pomppimista.

src/fft.cpp

@@ -71,7 +71,8 @@ void compute_fft(float* time_data, float* freq_out) {
 
     for (int i = 0; i < FFT_SIZE / 2; ++i) {
         float mag = sqrtf(real[i] * real[i] + imag[i] * imag[i]) / FFT_SIZE;
-
+        //float db = 20.0f * log10f(mag + 1e-6f); // Decibels
+        //float normalized = (db + 60.0f) / 60.0f; // [0,1]
         freq_out[i] = mag;
     }
 }