Doppler: Pitch-Shift and Motion Effect Plugin by Waves

Doppler gives you direct control over the track curve, center time, pitch, and start and end points of a movement. Waves says the intuitive display makes it clear how the sound travels, which helps when you are building fly-bys or passing movements across an effect.

The reverb tail generator adds reflections that emulate the surroundings, and Air Damp simulates high-frequency loss as the sound moves away. Sweeps can be triggered as one-shot or continuous events, either manually or by threshold, so movement can follow the audio itself.

Doppler includes a bypass for pitch-shifting, which lets you keep the tempo of rhythmic instruments while still adding motion through the reverb and other processing. This is useful when you want movement on drums, hi-hats or other timed parts without shifting their groove.

The plugin ships with 20 presets for common sound design movements, which give you a starting point before you adjust the curve and timing to suit your track.