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→Audio buses, routing and mixer
=== Audio buses, routing and mixer ===
The definition of the sound buses and their routing is very important part of the Master Bank.
* Master Bus<Br>The master bus creates the final submix of all buses routed to it before outputting audio to the speaker channels.<br>All buses, return buses, and events not assigned to a group are routed into the master bus.
* Bus<br>The bus is object which helps to collect specific sounds to groups and centaly control their volume or mute state.<br>Any sound event in the game should be assigned to the corresponding prepared audio bus.
* Routing<br>Routing the events and buses by the mixer helps to control specific sounds in groups and applying effects (as a reverb) for the whole group of the sounds together.
Current table describes mixer principles in our Master Bank:
{| class="wikitable"
|-
! Bus !! Routing to... !! Using for sounds... !! Remark
|-
| master || || ''- none -'' || Target for the central mixing of all other audio buses.<br>"Master" volume and mute state (from application settings) is applied to the bus.
|-
| <--- cabin || ''master'' || ''- none -'' ||
|-
| .....<--- interior || ''cabin'' || Individual truck interior sounds as for example:<br>air warning, blinkers, sticks, park brake, wipers, windows, seat noise... ||
|-
| .....<--- window_left || ''cabin'' || ''- none -'' ||
|-
| .....<--- window_right || ''cabin'' || ''- none -'' ||
|-
| .....<--- window_out || ''cabin'' || ''- none -'' ||
|-
| <--- outside || ''master'' || ''- none -'' || The bus should not contents any sounds. It is only technically group to collect all sounds from the outer world.
|-
| ...<--- exterior || ''outside'' || ''- none -'' || The bus should not contents any sounds. It is only technically group to collect all exterior sounds.
|-
| .....<--- traffic || ''exterior'' || Sounds of the traffic system. ||
|-
| .....<--- trailer || ''exterior'' || Player's trailer sounds. ||
|-
| .....<--- truck_effects || ''exterior'' || Player's truck effects<br>(air cutoff, air gear, hook, horns, reverse, ...). ||
|-
| .....<--- truck_engine || ''exterior'' || Player's truck engine.<br>([[Documentation/Engine/Sound/TruckEngine|see: Sounds - Truck Engine]]) ||
|-
| .....<--- truck_exhaust || ''exterior'' || Player's truck exhaust.<br>([[Documentation/Engine/Sound/TruckEngine|see: Sounds - Truck Engine]]) ||
|-
| .....<--- truck_noise || ''exterior'' || Player's truck noise<br>(aero noise, suspension noise, ...). ||
|-
| .....<--- world || ''exterior'' || Prefab sounds, sounds of animations...||
|-
| ...<--- unprocessed || ''outside'' || ''- none -'' || The bus should not contents any sounds. It is only technically group to collect all exterior sounds which are not affected by sound processing (like reverb).
|-
| .....<--- ambient || ''unprocessed'' || Ambient and environmental sounds and effects. ||
|-
| <--- game || ''master'' || ''- none -'' ||
|-
| .....<--- music || ''game'' || In-game music (as a 'hurry up' melody). ||
|-
| .....<--- navigation || ''game'' || Voice navigation output. ||
|-
| .....<--- ui || ''game'' || Sounds of the user interface<br>(click, mail, reward, camera, ...). ||
|-
| .....<--- ui_music || ''game'' || Music for UI (menu, garage, service, ...). ||
|-
| .....<--- voiceover || ''game'' || Reserved for the future use. ||
|-
| <--- radio || ''master'' || Output for the in-game radio (user music) player. ||
|}
