Fubos engine sound designer

While every other engine sound asset on Unity stitches together recorded samples, Fubos Engine Sound takes a different path. It's the first engine sound synthesizer for Unity built on additive resynthesis - a technique that has never been used in games. Sound is generated in real time, with no samples and no crossfades.

How it works

Feed the tool a single recording of an engine accelerating - your own or a recording from YouTube. The analyzer extracts the recording's harmonic structure and packs it into a compact .eng file. The synthesizer plays that profile back in real time, reshaping the sound to match the current RPM and load. Every cycle is unique, and transitions between RPMs stay smooth.

Key features

• Realistic sound extracted from a real recording
• Smooth RPM transitions, no audible seams or loops
• Sound varies naturally from cycle to cycle — no static "buzz-saw" feel
• Compact .eng format, easy to build a library of engines
• High-performance DSP - Burst-compiled, vectorized math, zero runtime allocations
• Support for 2-stroke and 4-stroke engines
• Full control through Unity's AudioSource
• Integrate in just a couple of lines of code - built for the simplest possible workflow
• Complete documentation covering every parameter with usage examples

What's in the box

• EngineForge Analyzer editor tool for extracting an engine profile from a WAV
• 9 ready-to-use engine presets - Italian V6, Italian V12, Japan I4, Japan I6, V8 and more
• Synthesizer for real-time playback of the profile
• Demo scene with a simple car and demo profiles
• PDF documentation

Support

Questions, feedback, or want to share what you've built? Join the Discord: https://discord.gg/QNzcnZeHJw