KOSP Project — Full Soundscape
KOSP Project is a comprehensive FMOD sound replacement for the ToLiss A319, A320, and A321 aircraft families in X-Plane 12. It replaces the default sound banks with over 900 audio files covering engine sounds, cockpit interactions, system sounds, and environmental audio.
Background
- Developer: Nguyen Duc Binh (also sound designer for the FlightFactor 777v2)
- Compatibility: X-Plane 12
- Current version: 1.7 (December 2025)
Features
- 4 engine variants: CFM56, IAE V2500, LEAP-1A, PW1000G — all in one package
- Cockpit sounds: Switches, buttons, rotary knobs, doors — recorded on a real A320
- System sounds: APU, PTU, hydraulics, landing gear, blower, cabin acoustics
- Environmental: Environmental sounds, ambient noise, ground roll
- 100% surround sound since v1.2
- C plugin (since v1.6) with in-sim menu for mixer, equalizer, speaker/headset configuration
Supported Aircraft
| Aircraft | Engine Variants |
|---|---|
| ToLiss A319 | CFM56, IAE V2500 |
| ToLiss A320 CEO | CFM56, IAE V2500 |
| ToLiss A320 NEO | LEAP-1A, PW1000G |
| ToLiss A321 CEO | CFM56 |
| ToLiss A321 NEO | LEAP-1A |
A330 and A340 are not supported.
Installation
Replace the fmod/ folder contents in the ToLiss aircraft directory:
- Back up the original
fmod/folder - Extract the KOSP archive
- Copy the FMOD bank files into the aircraft's
fmod/folder (e.g.,Aircraft/ToLissA321/fmod/) - Replace existing files when prompted
The included C plugin provides an in-simulator menu for volume, mixer, and equalizer adjustments.