Doppler + Air audio post-production plugin interface by Sound Particles

Doppler + Air: Doppler and Air Absorption Audio Plugins by Sound Particles Free Download

Rated 4.7/5 on Plugin Boutique (43 ratings)

Doppler + Air is a bundle of audio post-production effect plugins from Sound Particles that simulate how sound moves and dampens through air. It is available as VST3, VST2, AU and AAX plugins for Windows and macOS.

VST3VST2AUAAXWindowsmacOS

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Free trial available from the developer

01Overview

Doppler + Air combines two plugins built for sound design and audio post-production. Doppler reproduces the pitch, level and EQ changes of a sound passing by, using the same engine Sound Particles says is used in many Hollywood studios. Air models the high-frequency loss that happens as sound travels through air, so dialogue or effects can sound naturally distant. Both plugins work with immersive formats, from stereo to Dolby Atmos beds and Ambisonics.

Best for

Passing vehicle sound design
Dialogue for distant characters
Immersive Atmos post-production
Ambisonics sound design
Film and video sound effects

Developer: Sound Particles
Category: Multi-Effects
Store: Plugin Boutique

02Key features

What you get

Doppler effect with pitch, level and EQ control
Distance EQ based on air dampening over distance
Mono, stereo, 5.1, 7.1, 9.1 Dolby Atmos and Ambisonics input options
Ambisonics support up to 3rd order
Peak timing control to sync Doppler with picture
Air location presets from Antarctica to Death Valley
Custom air dampening values
Live frequency response display in Air
Metric and imperial unit support
Control surface support, including AVID S6

03In depth

Doppler: Accurate Pitch, Level and Distance EQ

Doppler controls every parameter that physically affects a passing sound: pitch, level and frequency response. Sound Particles says the plugin uses the same engine it developed for Hollywood post-production work.

You can set the time at which the Doppler peak occurs, and the other parameters adjust to keep the effect in sync with the picture. Distance EQ applies the frequency response a sound would gain from air dampening over distance, in addition to volume and pitch changes.

Units can be switched between meters and feet, and between mph and km/h, so the plugin fits either measurement convention.

Air: Frequency Response for Distant Sounds

Air simulates the dampening of higher frequencies as sound travels through air. The plugin includes location presets, from Antarctica to Death Valley, and you can enter custom values.

Air shows the frequency response being applied to the sound, and its Distance Attenuation parameter controls volume over distance. Sound Particles describes the model as more accurate than a simple low-pass filter because it uses exact air dampening response values.

Both plugins support control surfaces such as the AVID S6 for editing parameters.

04Specs

Will it run?

Formats, systems and requirements as listed by Plugin Boutique. Missing details are left out, not guessed.

Developer	Sound Particles
Type	Plugin
Category	Multi Effect
Formats	VST3, VST2, AU, AAX
Operating systems	Windows, macOS
Free trial	Yes

05FAQ

Questions, answered

What formats does Doppler + Air support?

Doppler + Air is available as VST3, VST2, AU and AAX plugins. It runs on Windows and macOS.

What do I need to run Doppler + Air?

On macOS, the plugins require OS X 10.9 or higher and support Intel and native Apple Silicon Macs. On Windows, they require Windows 7, 8 or 10. The minimum is a 2-core CPU, 4 GB of RAM and 600 MB of disk space; the recommended setup is a 4-core CPU, 8 GB of RAM and 600 MB of disk space.