Impulse Response for 3D Surround Sound System

To meet the new 3D sound standards, we have decided to create matching impulse responses for reverb programs for our new surround sound archive. The idea to quickly develop some impulse responses unfortunately turned out to be much more complex and complicated than originally thought. Read more about creating impulse responses in our detailed tutorial

3D Sounds Systems, A Brief Overview

3D sound formats not only include the traditional 5.1 surround sound setup, they also add more channels for 3D sound effects. Like Dolby Atmos, the Auro-3D® 11.1 system also requires additional height channels. While Dolby Atmos can be fitted with many multiples of channels (up to 128 or more, according to the documentation from Dolby...), the Auro-3D® 11.1 system features a mere 11.1 channels. These 11 channels, however, are more than enough for the moment, so we will deal with the setup for Auro-3D® 11.1 first. Of course, the impulse responses can also be used for the Dolby system.

Auro-3D® 11.1

Auro-3D® 11.1 multichannel cinema setup

The Auro-3D system by Belgian developers Van Baelen includes a total of 11.1 channels. In addition to the original 5.1 channels, Auro adds another 5.0 system on top - as well as a 'Voice of God' channel embedded in the ceiling.

Auro-3D® 11.1: Channel Layout

Main LayerUpper Layer
Surround LeftSurround Left
Surround RightSurround Right
LFEVoice of God (VOG)