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)

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

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