Sound and Music: Difference between revisions
m (Added Soundscripts link in 'articles' section. One of the most important articles for knowledge about sound in the Source Engine was entirely missing...) |
m (Removed misleading and misplaced line about how to play a sound as "music". That was incomplete to the point of falsehood and this page is *not* the place to tell a reader how to do that.) |
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'''Sound''' in Source can be processed in many ways. It can emit from a location in the world, have its pitch or volume altered, trigger behaviours from NPCs, and be lip synced. | '''Sound''' in Source can be processed in many ways. It can emit from a location in the world, have its pitch or volume altered, trigger behaviours from NPCs, and be lip synced. | ||
== Entities == | == Entities == | ||
Revision as of 15:57, 8 August 2022
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Sound in Source can be processed in many ways. It can emit from a location in the world, have its pitch or volume altered, trigger behaviours from NPCs, and be lip synced.
Entities
- ambient_generic — this is the basic entity to play a specific sound, including music
- ambient_music —
audio in the music layer, overriding music queued by the AI Director. - env_soundscape plays background noises (see Soundscapes)
- env_soundscape_proxy Point entity that acts like a soundscape but gets all of its sound parameters from another env_soundscape entity.
- env_soundscape_triggerable Point entity just like env_soundscape except that it works in conjunction with the trigger_soundscape entity to determine when a player hears it.
- trigger_soundscape Brush-based soundscape trigger. Does not need outputs, as it automatically triggers the soundscape specified by its Soundscape property.
- env_microphone — detects sounds
- env_speaker — plays sounds based on a set of Response System rules
- scripted_sentence — used to make an NPC speak an idea
- sound_mix_layer — used to set a mix layer to a specific value.
- logic_choreographed_scene — used for conversations and other sequences. See Category:Choreography.
Articles
- Category:Sound System — how sound works in Source
- Soundscripts
- Hammer Sound Browser — documents the Hammer user interface for browsing sounds
- Soundscapes — background sounds in a map
- Sound sensitive trigger — how to trigger an event based on the loudness
- Startup Music — one way to add music to a mod's title screen (alternatively, put it in a Menu Background Map)
AI sounds
- AI sounds are not audible to the player; they are purely an AI construction. They can be placed in-map with the ai_sound entity.
Music
- Music Composition - software synthesizers and other audio tools
Materials
To specify the set of sounds for a custom material (the noises produced in response to hits, scrapes, etc), see Material surface properties.
Notes
- To play music, use Hammer Sound Browser to search for keyword
music. - Many entities can have sounds assigned to them. For example, prop_door_rotating can be assigned sounds for opening, closing, swinging, being locked, and being unlocked. See the individual entities for details.