Sound Synthesis and Spatial Reproduction by Physical Modeling

Physical Modeling for Spatial Sound Synthesis

This contribution combines techniques for sound synthesis and spatial reproduction for a joint synthesis of the sound production and sound propagation properties of virtual string instruments. The generated sound field is reproduced on a massive multichannel loudspeaker system using wave field synthesis techniques. From physical descriptions of string vibrations and sound waves by partial diffe...

Spatial Sound Reproduction with Wave Field Synthesis

Stereophonic spatial sound reproduction systems with two, five, or more channels are designed for a certain listener position and work well in its vicinity, the so called sweet spot. For listeners at other positions, the quality of the spatial reproduction may be degraded. This contribution describes an advanced spatial reproduction technique called wave field synthesis. It is based on a physic...

Digital Sound Synthesis by Block-Based Physical Modeling

Different methods have been proposed for digital sound synthesis by physical modeling. Since musical instruments may consist of several components with quite different physical nature, there is no single best modeling paradigm. Choosing the optimal model for each component requires a common interconnection strategy, which leads to a computable algorithm with faithful sound reproduction. This co...

Analysis, Synthesis, and Perception of Spatial Sound – Binaural Localization Modeling and Multichannel Loudspeaker Reproduction

Directional audio coding - perception-based reproduction of spatial sound

Directional Audio Coding (DirAC) is a perceptually motivated technique for spatial audio processing. DirAC analyzes in short time windows the sound spectrum together with direction and diffuseness in frequency bands of human hearing, and uses this information in synthesis. It has applications in capturing, coding and resynthesis of spatial sound, in teleconferencing, in directional filtering, a...