adding chyperacoustic filtering

src/default_bus_layout.tres

@@ -1,4 +1,9 @@
-[gd_resource type="AudioBusLayout" load_steps=2 format=3 uid="uid://djkwd76o033io"]
+[gd_resource type="AudioBusLayout" load_steps=3 format=3 uid="uid://djkwd76o033io"]
+
+[sub_resource type="AudioEffectEQ" id="AudioEffectEQ_e1rh3"]
+resource_name = "EQ"
+band_db/3200_hz = -30.0
+band_db/10000_hz = -60.0
 
 [sub_resource type="AudioEffectLowPassFilter" id="AudioEffectLowPassFilter_5p17k"]
 resource_name = "LowPassFilter"
@@ -6,6 +11,8 @@ resonance = 0.52
 
 [resource]
 bus/0/volume_db = 0.0672607
+bus/0/effect/0/effect = SubResource("AudioEffectEQ_e1rh3")
+bus/0/effect/0/enabled = false
 bus/1/name = &"text"
 bus/1/solo = false
 bus/1/mute = false

src/logic-scenes/main menu/acessability_settings.gd

@@ -15,6 +15,7 @@ var has_stage:bool = false:
 @onready var screenreader_check: CheckBox = %Screenreader
 @onready var disable_rendering_check: CheckBox = %DisableRendering
 @onready var simplify_controls_check: CheckBox = %SimplyifyControls
+@onready var hyperacoustics_check: CheckBox = %HyperacusticsFilter
 @onready var font_picker: OptionButton = %FontSeettings
 @onready var subtitle_picker: OptionButton = %SubtitleSettings
 @onready var scale_slider: HSlider = %UIScaleSlider
@@ -33,6 +34,7 @@ func _ready() -> void:
 	screenreader_check.pressed.connect(func(value): State.screen_reader_enabled = value)
 	disable_rendering_check.pressed.connect(func(value): State.rendering_disabled = value)
 	simplify_controls_check.pressed.connect(func(value): State.use_simplified_navigation = value)
+	hyperacoustics_check.pressed.connect(func(value): State.enable_hyperacoustic_filter = value)
 	font_picker.item_selected.connect(func(value): State.font_style = value)
 	subtitle_picker.item_selected.connect(func(value): State.subtitles = value)
 	scale_slider.drag_ended.connect(_on_scale_slider_dragged)
@@ -47,6 +49,7 @@ func update_ui_from_state():
 	screenreader_check.button_pressed = State.screen_reader_enabled
 	disable_rendering_check.button_pressed = State.rendering_disabled
 	simplify_controls_check.button_pressed = State.use_simplified_navigation
+	hyperacoustics_check.button_pressed = State.enable_hyperacoustic_filter
 	font_picker.selected = State.font_style
 	subtitle_picker.selected = State.subtitles
 	scale_slider.value = State.ui_scaling

src/logic-scenes/main menu/acessability_settings.tscn

@@ -52,6 +52,11 @@ layout_mode = 2
 disabled = true
 text = "simplified Controls"
 
+[node name="HyperacusticsFilter" type="CheckBox" parent="Container2"]
+unique_name_in_owner = true
+layout_mode = 2
+text = "Hyperacoustics Filter"
+
 [node name="margin" type="MarginContainer" parent="Container2"]
 visible = false
 layout_mode = 2

src/singletons/global_state.gd

@@ -10,6 +10,11 @@ extends Node
 @export var screen_reader_enabled:bool = false
 @export var rendering_disabled: bool = false
 @export var use_simplified_navigation:bool = false
+@export var enable_hyperacoustic_filter: bool = false:
+	set(value):
+		enable_hyperacoustic_filter = value
+		if enable_hyperacoustic_filter:
+			AudioServer.set_bus_effect_enabled(0, 0, enable_hyperacoustic_filter)
 @export var show_navigation_buttons: bool = false
 @export_enum("handwriting", "serif", "legible", "system") var font_style: int = 0
 @export_enum("disabled", "text", "cc") var subtitles: int = false