diff --git a/UI.hpp b/UI.hpp
index 3061c47..472bfca 100644
--- a/UI.hpp
+++ b/UI.hpp
@@ -17,7 +17,7 @@
   const uint8_t MAX_SCREENS = 14; ///< @note Default: 14
 
   /// Configures the number of available menus per menus system.
-  const uint8_t MAX_MENUS = 41; ///< @note Default: 8
+  const uint8_t MAX_MENUS = 40; ///< @note Default: 8
 
 */
 
@@ -36,7 +36,7 @@ int32_t encoder_value[NUM_ENCODER];
 Bounce but[NUM_ENCODER] = {Bounce(BUT_L_PIN, BUT_DEBOUNCE_MS), Bounce(BUT_R_PIN, BUT_DEBOUNCE_MS)};
 elapsedMillis back_to_main;
 
-#define NUM_MENUS 41
+#define NUM_MENUS 40
 
 #define MAIN 0
 /*************************************/
@@ -700,7 +700,7 @@ LiquidSystem menu_system;
 /******************************************
    LOAD SOUND CALLBACKS
  ******************************************/
-void callback_load_sound_function() {
+void callback_load_sound_function(void) {
 #ifdef DEBUG
   Serial.println(F("callback_load_sound_function"));
 #endif
@@ -714,7 +714,7 @@ void callback_load_sound_function() {
 /******************************************
    EDIT SOUND CALLBACKS
  ******************************************/
-void callback_edit_sound_function()
+void callback_edit_sound_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_edit_sound_function"));
@@ -737,7 +737,7 @@ void callback_edit_sound_function()
   menu_system.update();
 }
 
-void callback_decay_function()
+void callback_decay_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_decay_function"));
@@ -749,7 +749,7 @@ void callback_decay_function()
   menu_system.update();
 }
 
-void callback_release_function()
+void callback_release_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_release_function"));
@@ -761,7 +761,7 @@ void callback_release_function()
   menu_system.update();
 }
 
-void callback_hardness_function()
+void callback_hardness_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_hardness_function"));
@@ -773,7 +773,7 @@ void callback_hardness_function()
   menu_system.update();
 }
 
-void callback_treble_function()
+void callback_treble_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_treble_function"));
@@ -785,7 +785,7 @@ void callback_treble_function()
   menu_system.update();
 }
 
-void callback_stereo_function()
+void callback_stereo_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_stereo_function"));
@@ -797,7 +797,7 @@ void callback_stereo_function()
   menu_system.update();
 }
 
-void callback_transpose_function()
+void callback_transpose_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_transpose_function"));
@@ -809,7 +809,7 @@ void callback_transpose_function()
   menu_system.update();
 }
 
-void callback_tune_function()
+void callback_tune_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_tune_function"));
@@ -821,7 +821,7 @@ void callback_tune_function()
   menu_system.update();
 }
 
-void callback_detune_function()
+void callback_detune_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_detune_function"));
@@ -833,7 +833,7 @@ void callback_detune_function()
   menu_system.update();
 }
 
-void callback_velocity_sense_function()
+void callback_velocity_sense_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_velocity_sense_function"));
@@ -848,7 +848,7 @@ void callback_velocity_sense_function()
 /******************************************
    EFFECTS CALLBACKS
  ******************************************/
-void callback_effect_function()
+void callback_effect_function(void)
 {
 #ifdef DEBUG
   Serial.print(F("callback_effect_function, focus position: "));
@@ -872,7 +872,7 @@ void callback_effect_function()
   menu_system.update();
 }
 
-void callback_pan_trem_frequency_function()
+void callback_pan_trem_frequency_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_pan_trem_frequency_function"));
@@ -884,7 +884,7 @@ void callback_pan_trem_frequency_function()
   menu_system.update();
 }
 
-void callback_pan_trem_level_function()
+void callback_pan_trem_level_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_pan_trem_level_function"));
@@ -896,7 +896,7 @@ void callback_pan_trem_level_function()
   menu_system.update();
 }
 
-void callback_overdrive_function()
+void callback_overdrive_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_overdrive_function"));
@@ -908,7 +908,7 @@ void callback_overdrive_function()
   menu_system.update();
 }
 
-void callback_comp_gain_function()
+void callback_comp_gain_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_comp_gain_function"));
@@ -920,7 +920,7 @@ void callback_comp_gain_function()
   menu_system.update();
 }
 
-void callback_comp_response_function()
+void callback_comp_response_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_comp_response_function"));
@@ -932,7 +932,7 @@ void callback_comp_response_function()
   menu_system.update();
 }
 
-void callback_comp_limit_function()
+void callback_comp_limit_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_comp_limit_function"));
@@ -944,7 +944,7 @@ void callback_comp_limit_function()
   menu_system.update();
 }
 
-void callback_comp_threshold_function()
+void callback_comp_threshold_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_comp_threshold_function"));
@@ -956,7 +956,7 @@ void callback_comp_threshold_function()
   menu_system.update();
 }
 
-void callback_comp_attack_function()
+void callback_comp_attack_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_comp_attack_function"));
@@ -968,7 +968,7 @@ void callback_comp_attack_function()
   menu_system.update();
 }
 
-void callback_comp_decay_function()
+void callback_comp_decay_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_comp_decay_function"));
@@ -980,7 +980,7 @@ void callback_comp_decay_function()
   menu_system.update();
 }
 
-void callback_reverb_roomsize_function()
+void callback_reverb_roomsize_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_reverb_roomsize_function"));
@@ -992,7 +992,7 @@ void callback_reverb_roomsize_function()
   menu_system.update();
 }
 
-void callback_reverb_damping_function()
+void callback_reverb_damping_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_reverb_damping_function"));
@@ -1004,7 +1004,7 @@ void callback_reverb_damping_function()
   menu_system.update();
 }
 
-void callback_reverb_level_function()
+void callback_reverb_level_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_reverb_level_function"));
@@ -1016,7 +1016,7 @@ void callback_reverb_level_function()
   menu_system.update();
 }
 
-void callback_chorus_frequency_function()
+void callback_chorus_frequency_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_chorus_frequency_function"));
@@ -1034,7 +1034,7 @@ void callback_chorus_frequency_function()
   Serial.println("5");
 }
 
-void callback_chorus_delay_function()
+void callback_chorus_delay_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_chorus_delay_function"));
@@ -1046,7 +1046,7 @@ void callback_chorus_delay_function()
   menu_system.update();
 }
 
-void callback_chorus_level_function()
+void callback_chorus_level_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_chorus_level_function"));
@@ -1058,7 +1058,7 @@ void callback_chorus_level_function()
   menu_system.update();
 }
 
-void callback_bass_lr_level_function()
+void callback_bass_lr_level_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_bass_lr_level_function"));
@@ -1070,7 +1070,7 @@ void callback_bass_lr_level_function()
   menu_system.update();
 }
 
-void callback_bass_mono_level_function()
+void callback_bass_mono_level_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_bass_mono_level_function"));
@@ -1082,7 +1082,7 @@ void callback_bass_mono_level_function()
   menu_system.update();
 }
 
-void callback_eq_bass_function()
+void callback_eq_bass_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_eq_bass_function"));
@@ -1094,7 +1094,7 @@ void callback_eq_bass_function()
   menu_system.update();
 }
 
-void callback_eq_treble_function()
+void callback_eq_treble_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_eq_treble_function"));
@@ -1109,21 +1109,22 @@ void callback_eq_treble_function()
 /******************************************
    SAVE SOUND CALLBACKS
  ******************************************/
-void callback_save_sound_function() {
+void callback_save_sound_function(void)
+{
 #ifdef DEBUG
   Serial.println(F("callback_save_sound_function"));
 #endif
   menu_system.change_menu(save_sound_menu);
   menu_position[MAIN] = encoder_value[RIGHT_ENCODER];
   encoder_value[RIGHT_ENCODER] = sound;
-  enc[RIGHT_ENCODER].write(sound, 1, 99);
+  enc[RIGHT_ENCODER].write(sound, 1, MAX_SOUNDS);
   menu_system.update();
 }
 
 /******************************************
    SYSTEM MENU CALLBACKS
  ******************************************/
-void callback_system_function()
+void callback_system_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_system_function"));
@@ -1146,7 +1147,7 @@ void callback_system_function()
   menu_system.update();
 }
 
-void callback_loudness_function()
+void callback_loudness_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_loudness_function"));
@@ -1158,7 +1159,7 @@ void callback_loudness_function()
   menu_system.update();
 }
 
-void callback_midi_channel_function()
+void callback_midi_channel_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_midi_channel_function"));
@@ -1170,7 +1171,7 @@ void callback_midi_channel_function()
   menu_system.update();
 }
 
-void callback_midi_soft_thru_function()
+void callback_midi_soft_thru_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_midi_soft_thru_function"));
@@ -1182,7 +1183,7 @@ void callback_midi_soft_thru_function()
   menu_system.update();
 }
 
-void callback_max_poly_function()
+void callback_max_poly_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_max_poly_function"));
@@ -1197,7 +1198,7 @@ void callback_max_poly_function()
 /******************************************
    INFO MENU CALLBACKS
  ******************************************/
-void callback_info_function()
+void callback_info_function(void)
 {
 #ifdef DEBUG
   Serial.println(F("callback_info_function"));
@@ -2462,9 +2463,9 @@ void handle_ui(void)
             if (menu_system.get_currentScreen() == &edit_sound_screen)
               menu_callback_offset = NUM_MAIN_MENUS;
             else if (menu_system.get_currentScreen() == &effects_screen)
-              menu_callback_offset = NUM_MAIN_MENUS + NUM_LOAD_SOUNDS_MENUS + NUM_EDIT_SOUND_MENUS;
+              menu_callback_offset = NUM_MAIN_MENUS + NUM_EDIT_SOUND_MENUS;
             else if (menu_system.get_currentScreen() == &system_screen)
-              menu_callback_offset = NUM_MAIN_MENUS + NUM_LOAD_SOUNDS_MENUS + NUM_EDIT_SOUND_MENUS + NUM_EFFECTS_MENUS; // + NUM_SAVE_SOUNDS_MENUS;
+              menu_callback_offset = NUM_MAIN_MENUS + NUM_EDIT_SOUND_MENUS + NUM_EFFECTS_MENUS;
 #ifdef DEBUG
             Serial.print(F("Starting callback number "));
             Serial.println(encoder_value[RIGHT_ENCODER] + 1 + menu_callback_offset, DEC);
diff --git a/config.h b/config.h
index 748bdd5..43bfaa5 100644
--- a/config.h
+++ b/config.h
@@ -97,7 +97,7 @@
   30: 1.22 Volts p-p
   31: 1.16 Volts p-p
 */
-#define SGTL5000_LINEOUT_LEVEL 29
+#define SGTL5000_LINEOUT_LEVEL 30
 //#define SDCARD_CS_PIN    10
 //#define SDCARD_MOSI_PIN  7
 //#define SDCARD_SCK_PIN   14