Fixing parametric EQ.

MicroDexed.ino

@@ -634,10 +634,6 @@ void setup()
   audio_thru_mixer_l.gain(3, 0.0);
 #endif
 
-#ifdef SGTL5000_AUDIO_ENHANCE
-  //setup_sgtl5000_graphic_7band_eq();
-#endif
-
 #ifdef DEBUG
   Serial.println(F("<setup end>"));
 #endif

UI.hpp

@@ -7720,6 +7720,8 @@ void UI_func_eq_1(uint8_t param)
     sgtl5000.setEQGain(1, mapfloat(configuration.fx.eq_1, EQ_1_MIN, EQ_1_MAX, -9.9, 9.9));
     sgtl5000.commitFilter(1);
 #ifdef DEBUG
+    Serial.print("!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
+    Serial.println(mapfloat(configuration.fx.eq_1, EQ_1_MIN, EQ_1_MAX, -9.9, 9.9), 3);
     sgtl5000.show_params(1);
 #endif
   }

control_sgtl5000plus.cpp

@@ -28,8 +28,8 @@
 
 void AudioControlSGTL5000Plus::init_parametric_eq(void)
 {
-  //eqSelect(PARAMETRIC_EQUALIZER);
-  //eqFilterCount(num_bands);
+  eqSelect(PARAMETRIC_EQUALIZER);
+  eqFilterCount(num_bands);
 
   filter_type = new uint8_t[num_bands];
   Fc = new float[num_bands];
@@ -115,15 +115,24 @@ void AudioControlSGTL5000Plus::setEQFc(uint8_t band, float frq)
   }
 }
 
-void AudioControlSGTL5000Plus::setEQQ(uint8_t band, float q)
+// Calculate Q: http://www.sengpielaudio.com/calculator-bandwidth.htm
+/* void AudioControlSGTL5000Plus::setEQQ(uint8_t band, float q)
   {
   if (Q)
   {
     band = constrain(band, 1, num_bands);
     Q[band - 1] = q;
   }
-}
+  }*/
 
+void setEQBandwidth(uint8_t band, float bw);
+{
+  if (Q && Fc)
+  {
+    band = constrain(band, 1, num_bands);
+    //Q[band - 1] = ;
+  }
+}
 void AudioControlSGTL5000Plus::setEQGain(uint8_t band, float gain)
 {
   if (peakGainDB)

control_sgtl5000plus.h

@@ -30,31 +30,31 @@
 
 #define EQ_TYPE_0 FILTER_HIPASS
 #define EQ_CENTER_FRQ_0 50.0
-#define EQ_Q_0 0.5
+#define EQ_Q_0 0.126984
 
 #define EQ_TYPE_1 FILTER_PARAEQ
 #define EQ_CENTER_FRQ_1 120.0
-#define EQ_Q_1 0.5
+#define EQ_Q_1 0.126984
 
 #define EQ_TYPE_2 FILTER_PARAEQ
 #define EQ_CENTER_FRQ_2 220.0
-#define EQ_Q_2 0.5
+#define EQ_Q_2 0.126984
 
 #define EQ_TYPE_3 FILTER_PARAEQ
 #define EQ_CENTER_FRQ_3 1000.0
-#define EQ_Q_3 0.5
+#define EQ_Q_3 0.126984
 
 #define EQ_TYPE_4 FILTER_PARAEQ
 #define EQ_CENTER_FRQ_4 2000.0
-#define EQ_Q_4 0.5
+#define EQ_Q_4 0.126984
 
 #define EQ_TYPE_5 FILTER_PARAEQ
 #define EQ_CENTER_FRQ_5 7000.0
-#define EQ_Q_5 0.5
+#define EQ_Q_5 0.126984
 
 #define EQ_TYPE_6 FILTER_LOPASS
 #define EQ_CENTER_FRQ_6 10000.0
-#define EQ_Q_6 0.5
+#define EQ_Q_6 0.126984
 
 class AudioControlSGTL5000Plus : public AudioControlSGTL5000
 {
@@ -66,6 +66,7 @@ class AudioControlSGTL5000Plus : public AudioControlSGTL5000
     void setEQType(uint8_t band, uint8_t ft);
     void setEQFc(uint8_t band, float frq);
     void setEQQ(uint8_t band, float q);
+    //void setEQBandwidth(uint8_t band, float bw);
     void setEQGain(uint8_t band, float gain);
     void commitFilter(uint8_t band);
     void show_params(uint8_t band);