Creating Audio Object-focused Acoustic Environments for Room-Scale Virtual Reality

Abstract: Room-scale Virtual Reality (VR) affordance in movement and interactivity causes new challenges in creating virtual acoustic environments for VR experiences. Such environments are typically constructed from virtual interactive objects that are accompanied by an Ambisonic bed and an off-screen ("invisible") music soundtrack, with the Ambisonic bed, music, and virtual acoustics describing the aural features of an area. This methodology can become problematic in room-scale VR as the player cannot approach or interact with such background sounds, contradicting the player’s motion aurally and limiting interactivity. Written from a sound designers perspective, the paper addresses these issues by proposing a musically inclusive novel methodology that reimagines an acoustic environment predominately using objects that are governed by multimodal rule-based systems and spatialized in six degrees of freedom using 3D-binaural audio exclusively while minimizing the use of Ambisonic beds and non-diegetic music. This methodology is implemented using off-the-shelf, creator-oriented tools and methods and is evaluated through the development of a standalone, narrative, prototype room-scale VR experience. The experience’s target platform is a mobile, untethered VR system based on head-mounted displays, inside-out tracking, head-mounted loudspeakers or headphones, and hand-held controllers. The authors apply their methodology to the generation of ambiances based on sound-based music, sound effects, and virtual acoustics. The proposed methodology benefits the interactivity and spatial behavior of virtual acoustic environments but may be constrained by platform and project limitations

Lightweight Procedural Animation with Believable Physical Interactions

I describe a procedural animation system that uses techniques from behavior-based robot control, combined with a minimalist physical simulation, to produce believable character motions in a dynamic world. Although less realistic than motion capture or full biomechanical simulation, the system produces compelling, responsive character behavior. It is also fast, supports believable physical interactions between characters such as hugging, and makes it easy to author new behaviors

Lightweight procedural animation with believable physical interactions

I describe a procedural animation system that uses techniques from behavior-based robot control, combined with a minimalist physical simulation, to produce believable character motions in a dynamic world. Although less realistic than motion capture or full biomechanical simulation, the system produces compelling, responsive character behavior. It is also fast, supports believable physical interactions between characters such as hugging, and makes it easy to author new behaviors. Overview 1 Versatile procedural animation is a necessary component for applications such as interactive drama, in which characters participate in complex interactions that cannot be preplanned at authoring time. Although there have been procedura

Procedural animation: towards studio solutions for believability

This thesis sets out to investigate the understanding of the relationship between key-frame movement performances and procedural animation. It is geared towards building a theory of practice that would help develop a succinct method for generating believable character animation using procedural animation. This research places an emphasis on a practical aproach to the theory of animation and movement, and investigates the historical development of character animation and the notion of believability. It uses Laban Movement Analysis as a method in the application of procedural animation. The study seeks to address the following objectives: (1) To examine what areas of procedural animation may enhance the believability of a key-framed movement performance; (2) To identify the areas of procedural animation that are or could be used within professional studio practice; (3) To examine the potential of procedural animation to help develop convincing and life-like character movements; (4) To identify where and how a keyframed character movement can be enhanced procedurally; (5) To carry out empirical studies in order to analyse the effects and possible benefits of procedural enhancements on a key-framed movement