Approaching Spatial Audio Processing by Means of Decorrelation and Ring Modulation in Ambisonics

This paper presents an approach to spatial audio processing in ambisonics as a part of musical practice. We present the control of two treatments - the decorrelation and ring modulation in ambisonic - to express how the design of digital objects feeds into the composition of spatial attributes of sound and the musical idea of space. The decorrelation factor gives the possibilities rangy from localizable sources to diffuse sound field, and the modulation factor enables the variation between static situations to complex movement in space. These parameters encapsulate a multitude of operations on the signal as well as ways to think about interactions with spatial attributes of sound. Based on an experimental methodology of research-creation combining audio experiments with development, this approach shows how rich it is to explore different layers of our compositional environments to propose new paradigms of spatial audio. This has resulted in a new version of the decorrelation and ring modulation inside the Faust library abc