Sound Particles Doppler + Air Plug-ins Perpetual is a bundle of professional audio plugins (AAX Native, AU, VST and VST3), which may be used for sound design and audio post-production. They are perfect for simulating the physical behavior of sound moving through the air, turning your mix into an incredibly immersive sonic experience.

Doppler simulates the behavior of objects moving through air, providing audio with highly accurate characteristics of sounds passing-by. With control of all parameters that physically affect pitch, level, and EQ in a real-world situation, Doppler gives you the most natural-sounding emulation for your work.

Air simulates the natural dampening that happens to higher frequencies from sounds as they travel through air, providing perfectly simulated frequency responses to dialogue or effects that you want to sound naturally distant.