Features

Built-in Interfaces

Velocity Interface

The Velocity interface provides movement information to your sounds:

• LinearSpeed: How fast the sound is moving (in units/second)
• AngularSpeed: How fast the sound is rotating (in radians/second)

This is perfect for creating:

• Simple engine sounds
• Wind effects that intensify with movement
• Footsteps that adjust to walking/running pace
• Equipment rattles that respond to movement

Creative Applications

Movement-Reactive Sounds

Vehicle Engine Example:

1. Add the Velocity interface to your engine MetaSound
2. Connect LinearSpeed to:
   • Engine pitch (higher pitch at higher speeds)
   • Filter cutoff (more high frequencies at higher speeds)
   • Layer crossfades (transition between idle and high RPM samples)

Vehicle engine example

Character Movement Example:

1. Add the Velocity interface to footstep and cloth sounds
2. Connect LinearSpeed to:
   • A timer triggering footsteps
   • Wave selection - walk/run/sprint
   • Cloth rustling intensity
3. Connect AngularSpeed to equipment jostling sounds

Equipment Rattling

Interactive Sound Design

Every sound using an interface gets its own calculated values based on its specific situation. This means:

• Multiple vehicles each get their own unique engine sounds
• Different characters' footsteps respond to their individual movements
• Sound effects react appropriately based on their location and movement