transience entfernt

arduino_zauberstab/arduino_zauberstab.ino

@@ -65,7 +65,7 @@ int rounds = 0;
 
 void setup() {
 
-  Serial.begin(115200);
+  Serial.begin(250000);
   
   FastLED.addLeds<WS2812, LED_PIN, RGB>(leds, NUM_LEDS);
   FastLED.setMaxPowerInVoltsAndMilliamps(5, 300);

firmware/src/beat_detect.cpp

@@ -1,6 +1,9 @@
 #include "zauberstab.h"
 #include <algorithm>
 
+#undef NUM_LEDS
+#define NUM_LEDS 45
+
 #define SAMPLING_FREQUENCY_BP 40     // number of energy chunks per second
 #define SAMPLING_FREQUENCY_CONTROL 1 // check number of times per second if the current band pass is the best one
 #define Q 20.                        // quality factor of band pass filters
@@ -34,8 +37,6 @@ static float u1[n_BP];
 static float u2[n_BP];
 static float y[n_BP];
 static float y_fil[n_BP];
-static float y_fil_avg;
-static float transience = 0;
 
 static float angle;
 static float angle2;
@@ -45,14 +46,16 @@ static float angle2;
 static float pos_target = NUM_LEDS / 2;
 static float pos_target_filtered = NUM_LEDS / 2;
 
-static float microphone_offset = 675;
+static float microphone_offset = 1900;
 static long initial_time;
 
 static int active = 15;
 static int candidate = 15;
 static int rounds = 0;
 
-static float get_value(int pos, float pos0)
+static int n_samples = 0;
+
+static int get_value(int pos, float pos0)
 {
     if (abs(pos0 - pos) > 5)
     {
@@ -83,23 +86,27 @@ static void set_filter()
 void setup()
 {
     zauberstab_init();
-    Serial.begin(115200);
+    Serial.begin(250000);
     set_filter();
     initial_time = micros();
+
 }
 void loop()
 {
 
     int sample = int(analogRead(MIC_PIN) - microphone_offset);
     energy += abs(sample) * abs(sample);
+    n_samples++;
 
     if (micros() - last_us_bp > sampling_period_bp)
     {
-        Serial.println(sample);
+        Serial.println(n_samples);
+        n_samples = 0;
+
         microphone_offset += (analogRead(MIC_PIN) - microphone_offset) * 0.001;
         last_us_bp += sampling_period_bp;
         //energy_fil += (energy - energy_fil) * 0.01;
-        y_fil_avg = 0;
+
         for (int i = 0; i < n_BP; i++)
         {
             y[i] = (b0[i] / a0[i]) * energy + 0. + (b2[i] / a0[i]) * u2[i] - (a1[i] / a0[i]) * yy1[i] - (a2[i] / a0[i]) * yy2[i];
@@ -112,9 +119,8 @@ void loop()
             yy2[i] = yy1[i];
             yy1[i] = y[i];
             y_fil[i] += (abs(y[i]) - y_fil[i]) * 0.005; //linie der scheitelpunkte
-            y_fil_avg += y_fil[i];
+
         }
-        y_fil_avg /= n_BP;
 
         float delays = constrain(SAMPLING_FREQUENCY_BP * 0.25 / (1.75 + active * (2.4 - 1.75) / n_BP), 4., 6.);
 
@@ -152,15 +158,12 @@ void loop()
 
         energy = 0;
 
-        transience += ((y_fil[active]/y_fil_avg-1.6) - transience)*0.02;
-        transience = max(transience, 0.0f);
-        transience = min(transience, 1.0f);
-
         for (int i = 0; i < NUM_LEDS; i++)
         {
-            leds[i].g = int(get_value(i, pos_target_filtered)*transience);
+            leds[i].g = get_value(i, pos_target_filtered);
-            leds[i].r = int(get_value(i, pos_target_filtered+2)*transience);
+            leds[i].r = get_value(i, pos_target_filtered+2);
-            leds[i].b = int(get_value(i, pos_target_filtered-2)*transience);
+            leds[i].b = get_value(i, pos_target_filtered-2);
+
 
             //leds[i].setRGB(brightness_red, brightness_green, brightness_blue);
             //leds[i].setHSV(160, (rounds == 6) ? 0xFF : 0, brightness);