Changed to 104 bands (12 bands per octave)

gearsincorg · Nov 26, 2021 · 95b73f6 · 95b73f6
1 parent 500dddc
commit 95b73f6
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Showing 3 changed files with 10 additions and 12 deletions.
diff --git a/FFT-Band-Bin calculator-108B-9x12.xlsx b/FFT-Band-Bin calculator-108B-9x12.xlsx
diff --git a/VisualEar.ino b/VisualEar.ino
@@ -32,8 +32,8 @@
 #include "FastLED.h"
 
 // -- LED Display Constants
-#define START_NOISE_FLOOR   80                    // Frequency Bin Magnitudes below this value will not get summed into Bands. (Initial high value)
-#define BASE_NOISE_FLOOR    40                    // Frequency Bin Magnitudes below this value will not get summed into Bands. (Final minimumm value)
+#define START_NOISE_FLOOR   80  // Frequency Bin Magnitudes below this value will not get summed into Bands. (Initial high value)
+#define BASE_NOISE_FLOOR    40  // Frequency Bin Magnitudes below this value will not get summed into Bands. (Final minimumm value)
 
 #define UI_HOLD_MS      3000
 #define UI_STEP_MS       200
@@ -45,12 +45,11 @@ const int myInput = AUDIO_INPUT_LINEIN;
 float     upGainAccumulator   = 0;
 float     downGainAccumulator = 0;
 
-
 // -- LED Display Data
 uint32_t  bandValues[NUM_BANDS];
-uint16_t  LO_bandBins[NUM_LO_BANDS + 1] = {17,18,19,20,21,22,23,24,25,26,27,28,30,31,32,34,35,37,38,40,42,44,46,48,50,52,54,57,59,62,64,67,70,73,77,80,84};
-uint16_t  MD_bandBins[NUM_MD_BANDS + 1] = {42,44,46,48,50,52,54,57,59,62,64,67,70,73,77,80,84,87,91,95,99,104,108,113,118,123,129,135,141,147,153,160,167,174,182,190,199,207,217,226,236,247,258,269,281,293,306,320,334};
-uint16_t  HI_bandBins[NUM_HI_BANDS + 1] = {42,44,46,48,50,52,54,57,59,62,64,67,70,73,77,80,84,87,91,95,99,104,108,113,118,123,129,135,141,147,153,160,167,174,182,190,199,207,217,226,236,247,258,269,281,293,306,320,334,349,364,381,397};
+uint16_t  LO_bandBins[NUM_LO_BANDS + 1] = {13,14,15,16,17,18,20,21,22,23,25,26,28,29,31,33,35,37,39,41,44,46,49,52,55,58};
+uint16_t  MD_bandBins[NUM_MD_BANDS + 1] = {29,31,33,35,37,39,41,44,46,49,52,55,58,62,66,70,74,78,83,88,93,98,104,110,117,124,131,139,147,156,165,175};
+uint16_t  HI_bandBins[NUM_HI_BANDS + 1] = {25,27,28,30,32,33,35,37,40,42,45,47,50,53,56,60,63,67,71,75,79,84,89,94,100,106,112,119,126,134,142,150,159,168,178,189,200,212,225,238,252,267,283,300,318,337,357,378,400};
 
 // Create the Audio components.  These should be created in the
 AudioInputI2S          audioInput;     // audio shield: mic or line-in
@@ -129,7 +128,7 @@ void  runUI() {
       pressReset();
     }
 
-    // Look for button release.  Bump gain up unless we were already going down (holding)
+    // Look for button release.  Bump mode
     if (!UIButton && lastUIButton) {
       if (!UIHolding) {
         bumpMode();
@@ -182,8 +181,7 @@ void  runAGC(){
   Serial.print(", Gain Number ");
   Serial.println(gainNumber);
   */
-
-  }
+}
 
 void  bumpGain(int step ) {
   buttonStart = millis();

diff --git a/devconf.h b/devconf.h
@@ -4,9 +4,9 @@
 #define FLIP_LED_ORDER      true
 #define NUM_MODES 4
 
-#define NUM_LO_BANDS        37                    // Number of LOW frequency bands  
-#define NUM_MD_BANDS        48                    // Number of MID frequency bands  
-#define NUM_HI_BANDS        52                    // Number of HIGH frequency bands
+#define NUM_LO_BANDS        25                    // Number of LOW frequency bands  
+#define NUM_MD_BANDS        31                    // Number of MID frequency bands  
+#define NUM_HI_BANDS        48                    // Number of HIGH frequency bands
 #define NUM_BANDS           (NUM_LO_BANDS + NUM_MD_BANDS + NUM_HI_BANDS)    // Total Number of frequency bands being displayed
 
 #define NUM_LEDS            NUM_BANDS             // One LED per Band