Reduced chorus delaylines from 20.0ms to 15.0ms.

Removed change_disp_sd().

MicroDexed.ino

@@ -658,9 +658,6 @@ void setup()
 #endif
 
   // Start SD card
-#ifdef DISPLAY_LCD_SPI
-  change_disp_sd(false);
-#endif
   sd_card = check_sd_cards();
 
   if (sd_card < 1)
@@ -691,10 +688,6 @@ void setup()
   // Load initial Performance or the last used one
   initial_values(false);
 
-#ifdef DISPLAY_LCD_SPI
-  change_disp_sd(true);
-#endif
-
   // Initialize processor and memory measurements
   AudioProcessorUsageMaxReset();
   AudioMemoryUsageMaxReset();
@@ -1430,13 +1423,8 @@ void handleProgramChange(byte inChannel, byte inProgram)
     if (checkMidiChannel(inChannel, instance_id))
     {
       configuration.dexed[instance_id].voice = constrain(inProgram, 0, MAX_VOICES - 1);
-#ifdef DISPLAY_LCD_SPI
-      change_disp_sd(false);
-#endif
       load_sd_voice(configuration.dexed[instance_id].bank, configuration.dexed[instance_id].voice, instance_id);
-#ifdef DISPLAY_LCD_SPI
+
-      change_disp_sd(true);
-#endif
       if (LCDML.FUNC_getID() == LCDML.OTHER_getIDFromFunction(UI_func_voice_select))
       {
         LCDML.OTHER_updateFunc();
@@ -2752,17 +2740,6 @@ void generate_version_string(char* buffer, uint8_t len)
 #endif
 }
 
-#ifdef DISPLAY_LCD_SPI
-void change_disp_sd(bool disp)
-{
-  if (sd_card > 0)
-  {
-    digitalWrite(sd_card, disp);
-    digitalWrite(U8X8_CS_PIN, !disp);
-  }
-}
-#endif
-
 uint8_t check_sd_cards(void)
 {
   uint8_t ret = 0;

UI.hpp

@@ -87,10 +87,6 @@ uint8_t seq_active_function = 99;
 uint8_t activesample;
 #endif
 
-#ifdef DISPLAY_LCD_SPI
-extern void change_disp_sd(bool d);
-#endif
-
 #ifdef SGTL5000_AUDIO_ENHANCE
 #include "control_sgtl5000plus.h"
 extern AudioControlSGTL5000Plus       sgtl5000;
@@ -7565,13 +7561,7 @@ void UI_func_voice_select(uint8_t param)
               memset(g_bank_name[selected_instance_id], 0, BANK_NAME_LEN);
               bank_tmp = constrain(configuration.dexed[selected_instance_id].bank - ENCODER[ENC_R].speed(), 0, MAX_BANKS - 1);
               configuration.dexed[selected_instance_id].bank = bank_tmp;
-#ifdef DISPLAY_LCD_SPI
-              change_disp_sd(false);
-#endif
               load_sd_voice(configuration.dexed[selected_instance_id].bank, configuration.dexed[selected_instance_id].voice, selected_instance_id);
-#ifdef DISPLAY_LCD_SPI
-              change_disp_sd(true);
-#endif
               break;
             case MENU_VOICE_SOUND:
               memset(g_voice_name[selected_instance_id], 0, VOICE_NAME_LEN);
@@ -7588,14 +7578,7 @@ void UI_func_voice_select(uint8_t param)
               if (voice_tmp < 0)
                 voice_tmp = MAX_VOICES + voice_tmp;
               configuration.dexed[selected_instance_id].voice = constrain(voice_tmp, 0, MAX_VOICES - 1);
-
-#ifdef DISPLAY_LCD_SPI
-              change_disp_sd(false);
-#endif
               load_sd_voice(configuration.dexed[selected_instance_id].bank, configuration.dexed[selected_instance_id].voice, selected_instance_id);
-#ifdef DISPLAY_LCD_SPI
-              change_disp_sd(true);
-#endif
               break;
           }
         }
@@ -7603,39 +7586,20 @@ void UI_func_voice_select(uint8_t param)
           if (configuration.sys.favorites == 1)
           {
             locate_previous_favorite();
-#ifdef DISPLAY_LCD_SPI
-            change_disp_sd(false);
-#endif
             load_sd_voice(configuration.dexed[selected_instance_id].bank, configuration.dexed[selected_instance_id].voice, selected_instance_id);
-#ifdef DISPLAY_LCD_SPI
-            change_disp_sd(true);
-#endif
           }
           else  //only non-Favs
             if (configuration.sys.favorites == 2)
             {
               locate_previous_non_favorite();
-#ifdef DISPLAY_LCD_SPI
-              change_disp_sd(false);
-#endif
               load_sd_voice(configuration.dexed[selected_instance_id].bank, configuration.dexed[selected_instance_id].voice, selected_instance_id);
-#ifdef DISPLAY_LCD_SPI
-              change_disp_sd(true);
-#endif
               //break;
 
             } else  //random non-Favs
               if (configuration.sys.favorites == 3)
               {
                 locate_random_non_favorite();
-
-#ifdef DISPLAY_LCD_SPI
-                change_disp_sd(false);
-#endif
                 load_sd_voice(configuration.dexed[selected_instance_id].bank, configuration.dexed[selected_instance_id].voice, selected_instance_id);
-#ifdef DISPLAY_LCD_SPI
-                change_disp_sd(true);
-#endif
               }
       }  //end UP
       else if (LCDML.BT_checkDown())
@@ -7649,13 +7613,7 @@ void UI_func_voice_select(uint8_t param)
               memset(g_bank_name[selected_instance_id], 0, BANK_NAME_LEN);
               bank_tmp = constrain(configuration.dexed[selected_instance_id].bank + ENCODER[ENC_R].speed(), 0, MAX_BANKS - 1);
               configuration.dexed[selected_instance_id].bank = bank_tmp;
-#ifdef DISPLAY_LCD_SPI
-              change_disp_sd(false);
-#endif
               load_sd_voice(configuration.dexed[selected_instance_id].bank, configuration.dexed[selected_instance_id].voice, selected_instance_id);
-#ifdef DISPLAY_LCD_SPI
-              change_disp_sd(true);
-#endif
               break;
             case MENU_VOICE_SOUND:
               memset(g_voice_name[selected_instance_id], 0, VOICE_NAME_LEN);
@@ -7671,14 +7629,7 @@ void UI_func_voice_select(uint8_t param)
                 voice_tmp = MAX_VOICES - 1;
               }
               configuration.dexed[selected_instance_id].voice =  constrain(voice_tmp, 0, MAX_VOICES - 1);
-
-#ifdef DISPLAY_LCD_SPI
-              change_disp_sd(false);
-#endif
               load_sd_voice(configuration.dexed[selected_instance_id].bank, configuration.dexed[selected_instance_id].voice, selected_instance_id);
-#ifdef DISPLAY_LCD_SPI
-              change_disp_sd(true);
-#endif
               break;
           }
         }
@@ -7687,39 +7638,20 @@ void UI_func_voice_select(uint8_t param)
           {
 
             locate_next_favorite();
-
-#ifdef DISPLAY_LCD_SPI
-            change_disp_sd(false);
-#endif
             load_sd_voice(configuration.dexed[selected_instance_id].bank, configuration.dexed[selected_instance_id].voice, selected_instance_id);
-#ifdef DISPLAY_LCD_SPI
-            change_disp_sd(true);
-#endif
             //break;
           }
           else  //only non-Favs
             if (configuration.sys.favorites == 2)
             {
               locate_next_non_favorite();
-#ifdef DISPLAY_LCD_SPI
-              change_disp_sd(false);
-#endif
               load_sd_voice(configuration.dexed[selected_instance_id].bank, configuration.dexed[selected_instance_id].voice, selected_instance_id);
-#ifdef DISPLAY_LCD_SPI
-              change_disp_sd(true);
-#endif
               //break;
             } else  //random non-Favs
               if (configuration.sys.favorites == 3)
               {
                 locate_random_non_favorite();
-#ifdef DISPLAY_LCD_SPI
-                change_disp_sd(false);
-#endif
                 load_sd_voice(configuration.dexed[selected_instance_id].bank, configuration.dexed[selected_instance_id].voice, selected_instance_id);
-#ifdef DISPLAY_LCD_SPI
-                change_disp_sd(true);
-#endif
               }
 
       }

config.h

@@ -144,7 +144,7 @@
 #endif
 
 // CHORUS parameters
-#define MOD_DELAY_SAMPLE_BUFFER int32_t(TIME_MS2SAMPLES(20.0)) // 20.0 ms delay buffer. 
+#define MOD_DELAY_SAMPLE_BUFFER int32_t(TIME_MS2SAMPLES(15.0)) // 15.0 ms delay buffer. 
 #define MOD_WAVEFORM WAVEFORM_TRIANGLE // WAVEFORM_SINE WAVEFORM_TRIANGLE WAVEFORM_SAWTOOTH WAVEFORM_SAWTOOTH_REVERSE
 #define MOD_FILTER_OUTPUT MOD_BUTTERWORTH_FILTER_OUTPUT // MOD_LINKWITZ_RILEY_FILTER_OUTPUT MOD_BUTTERWORTH_FILTER_OUTPUT MOD_NO_FILTER_OUTPUT
 #define MOD_FILTER_CUTOFF_HZ 2000