Revision Difference
DSP_Presets#562505
<cat>Dev.Ref</cat>⤶
<title>DSP Presets</title>⤶
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# DSP Presets⤶
DSP (Digital Signal Processing) is used to modify certain characteristics of a sound when it is played, such as reverb, delay, stereo effects, tone, etc.⤶
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It can be useful to make your sounds more convincing in certain situations, like giving your sound a 'small speaker' effect when it is being played through a radio.⤶
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Below is a detailed list of DSP presets created by Valve for Source engine games. The original list can be found on this [Valve Developer Community page](https://developer.valvesoftware.com/wiki/Dsp_presets).⤶
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<note>This list is **incomplete** because some effects lack a description. You can contribute by observing the preset and noting down how the effect changes the sound.</note>⤶
| Number | Name | Description |⤶
|--------|-------------|--------|⤶
|0 | NULL PRESET | The default, non-processed sound. Disables map-area-specific DSP effects. |⤶
|1 | AUTO PRESET | The default processing according to your position in the map. |⤶
|2 | Metallic S | Decreases stereo separation and has a slight echo. |⤶
|3 | Metallic M | Decreases stereo separation. Appears to have 2 delay effects, one quick and one slow. |⤶
|4 | Metallic L | Decreases stereo separation. Appears to have 2 delay effects, as well as a large reverb. Lower frequencies tend to 'bounce' much more. |⤶
|5 | Tunnel S | Small tunnel, such as an air vent. The sound 'bounces' very quickly, similar to Brite S, but with a more convincing effect. |⤶
|6 | Tunnel M | Medium tunnel, such as a narrow train tube. |⤶
|7 | Tunnel L | Large tunnel. Tends to have a 150hz ring. | ⤶
|8 | Chamber S | Clean sound with a slight reverb and long echo. |⤶
|9 | Chamber M | Same as Chamber S, with more noticeable effects. |⤶
|10 | Chamber L | Same as Chamber M, with cleaner, more direct sound. |⤶
|11 | Brite S | Small tunnel with thin metal walls. Tends to have a 100hz ring. Similar to HL1's air vent processing. |⤶
|12 | Brite M | Medium chamber with a 500hz ring. |⤶
|13 | Brite L | Powdery, suppressed effect with a 300hz ring. |⤶
|14 | Water S | Muffles higher frequencies as if underwater. |⤶
|15 | Water M | Muffles mid-to-high frequencies as if underwater. |⤶
|16 | Water L | Same as Water M, with much more echo. |⤶
|17 | Concrete S | Decreases stereo separation and gives the sound some bounce. |⤶
|18 | Concrete M | Decreases stereo separation and muffles lower frequencies. |⤶
|19 | Concrete L | Mostly indistinguishable from Concrete M. |⤶
|20 | Outside S | |⤶
|21 | Outside M | |⤶
|22 | Outside L | |⤶
|23 | Cavern S | |⤶
|24 | Cavern M | |⤶
|25 | Cavern L | |⤶
|26 | Weird 1 | Loud echo with increased high frequencies. |⤶
|27 | Weird 2 | The exact same as Weird 1. |⤶
|28 | Weird 3 | The exact same as Weird 1. |⤶
|29 | Weird 4 | The exact same as Weird 1. |⤶
|30 | Lowpass 1 | "FACING AWAY" Decreases high frequencies. |⤶
|31 | Lowpass 2 | "FACING AWAY + 80ms delay" Decreases high frequencies even more. Sound is delayed by 80ms |⤶
|32 | Explosion Ring 1 | Briefly muffles all noise and returns to the previous active preset after a short time. |⤶
|33 | Explosion Ring 2 | The exact same as Explosion Ring 1. |⤶
|34 | Explosion Ring 3 | The exact same as Explosion Ring 1. |⤶
|35 | Shock Muffle 1 | The high-pitched ringing noise heard when taking explosive damage. Returns to the previous active preset after a short time. |⤶
|36 | Shock Muffle 2 | The exact same as Shock Muffle 1. |⤶
|37 | Shock Muffle 3 | The exact same as Shock Muffle 1. |⤶
|38 | Distorted Speaker | Extreme distortion and compression, played through a cheap speaker. |⤶
|39 | Strider Pre-Fire | A brief, 1-second buzzing noise that muffles other sound and fades away. ⤶
|40 | Spatial Delay | "PLAYER SPATIAL (WALL) DELAY" Sound is delayed by 100ms. |⤶
|41 | Spatial 1 | No effect |⤶
|42 | Spatial 2 | No effect |⤶
|43 | Spatial 3 | No effect |⤶
|44 | Test Preset 1 | Speeds up all sound by 10% and has a slight bitcrushed tone. |⤶
|45 | Test Preset 2 | Slows down all sound by 10% and has a slight bitcrushed tone. |⤶
|46 | Test Preset 3 | All sound under a certain volume is muted. Sounds fade in slightly.|⤶
|47 | Test Preset 4 | All sounds are repeated a few times in quick succession. |⤶
|48 | Test Preset 5 | Similar to Test Preset 3, with a higher sound threshold and quicker fade-in. |⤶
|49 | Test Preset 6 | No effect |⤶
|50 | Unnamed | No effect |⤶
|51 | Unnamed | No effect |⤶
|52 | Unnamed | No effect |⤶
|53 | Unnamed | No effect |⤶
|54 | Unnamed | No effect |⤶
|55 | Seaker Louder | Mutes low-to-mid frequencies and applies distortion. |⤶
|56 | Speaker Very Small | Keeps only high frequencies and applies slight distortion. |⤶
|57 | Loudspeaker | Similar to Speaker Louder, with less distortion and more echo. |⤶
|58 | Speaker Small | Similar to Speaker Very Small, with slightly more mid frequencies. |⤶
|59 | Speaker Very Small | Almost the exact same as 56. |⤶
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Presets 60 through 99 have no effect and will not be listed here.⤶
# Internal Presets⤶
These presets were created as templates for automatic DSP creation. You can use them, but description for the effects are minimal.⤶
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| Number | Name |⤶
|--------|-------|⤶
|100 | Unnamed |⤶
|101 | Unnamed |⤶
|102 | ROOM EMPTY SMALL BRIGHT |⤶
|103 | ROOM EMPTY HUGE DULL |⤶
|104 | ROOM DIFFUSE SMALL BRIGHT |⤶
|105 | ROOM DIFFUSE HUGE DULL |⤶
|106 | DUCT EMPTY SMALL BRIGHT |⤶
|107 | DUCT EMPTY HUGE DULL |⤶
|108 | DUCT DIFFUSE SMALL BRIGHT |⤶
|109 | DUCT DIFFUSE HUGE DULL |⤶
|110 | HALL EMPTY SMALL BRIGHT |⤶
|111 | HALL EMPTY HUGE DULL |⤶
|112 | HALL DIFFUSE SMALL BRIGHT |⤶
|113 | HALL DIFFUSE HUGE DULL |⤶
|114 | TUNNEL EMPTY SMALL BRIGHT |⤶
|115 | TUNNEL EMPTY HUGE DULL |⤶
|116 | TUNNEL DIFFUSE SMALL BRIGHT |⤶
|117 | TUNNEL DIFFUSE HUGE DULL |⤶
|118 | STREET EMPTY SMALL BRIGHT |⤶
|119 | STREET EMPTY HUGE DULL |⤶
|120 | STREET DIFFUSE SMALL BRIGHT |⤶
|121 | STREET DIFFUSE HUGE DULL |⤶
|122 | ALLEY EMPTY SMALL BRIGHT |⤶
|123 | ALLEY EMPTY HUGE DULL |⤶
|124 | ALLEY DIFFUSE SMALL BRIGHT |⤶
|125 | ALLEY DIFFUSE HUGE DULL |⤶
|126 | COURTYARD EMPTY SMALL BRIGHT |⤶
|127 | COURTYARD EMPTY HUGE DULL |⤶
|128 | COURTYARD DIFFUSE SMALL BRIGHT |⤶
|129 | COURTYARD DIFFUSE HUGE DULL |⤶
|130 | OPENSPACE EMPTY SMALL BRIGHT |⤶
|131 | OPENSPACE EMPTY HUGE DULL |⤶
|132 | OPENSPACE DIFFUSE SMALL BRIGHT |⤶
|133 | OPENSPACE DIFFUSE HUGE DULL |
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