Audio Modding: Redmod

Summary

Last documented update: June 06 2025 by Lizzie Kieser

REDmod allows you to add new and override existing audio events. Note that any events added or overridden will use a different Wwise event, removing any special parameters and Wwise logic attached (e.g. overriding a gun sound event will result in it no longer receiving time-dilation effects processing).

Audio Modding - WolvenKit Integration

The REDmod sound import tool can be used in a WolvenKit project.

• Add the .wav sound files you wish to import to your /customSounds folder in your mod project

• Click Tools > Sound Modding Tool

• In the Sound Modding Tool, choose which event to mod from the list of game sound events

• Adjust the parameters in the bottom right

• Click Save

Audio Modding - Manually

Place raw .wav audio files inside <Cyberpunk 2077>/mods/<name>/customSounds. Include a info.json file with your mod (<Cyberpunk 2077>/mods/<name>/customSounds/info.json) where you sepcify how to use your custom sounds. You may use nested folders with \\ (see last entry in example).

Example

{
  "name": "newmodtest",
  "version": "1.0.0",
  "customSounds": [
    {
      "name": "amb_bl_eq_medical_electronics_small",
      "type": "mod_skip"
    },
    {
      "name": "w_gun_revol_power_overture_fire_suppressor",
      "type": "mod_skip"
    },
    {
      "name": "w_gun_npc_dian_reload",
      "type": "mod_sfx_2d",
      "file": "are_you_sure_about_that.wav",
      "gain": 1.0,
      "pitch": 0.1
    }
    {
      "name": "my_new_sound",
      "type": "mod_sfx_room",
      "file": "mysounds\\new_sound.wav",
      "gain": 0.4,
      "pitch": 0.05
    },
  ]
}

Parameters

• name - String The game audio event to override.

• type - String The sound type. Options are:

  • mod_skip: Do not play this sound event

  • mod_sfx_2d: Will be played without any positions / attenuation

  • mod_sfx_city: Has a longer attenuation that is suitable for city sounds

  • mod_sfx_low_occlusion: Has a long attenuation that isn't occluded much e.g. a VO or quest sound that you don't want to be muffled

  • mod_sfx_occlusion: Medium attenuation with normal occlusion

  • mod_sfx_radio: Needs to be tuned to a broadcast channel (e.g. radio)

  • mod_sfx_room: Has a shorter attenuation suitable for something that can be heard across a room

  • mod_sfx_street: Has a medium attenuation, good for something to be heard down a street

  • mod_sfx_ui: For menu and UI sound replacement

• file - String The .wav file to use (inside /customSounds)

• gain - Float How loud the sound is; ranges from 0 to 1.

• pitch - Float The amount of pitch variance applied to the sound; ranges from 0 to 1.