This open access book provides a concise explanation of the fundamentals and background
of the surround sound recording and playback technology Ambisonics. It equips readers …

One solution to realize spatial sound reproduction without a large number of distributed
loudspeakers is to create virtual sources in the desired directions by using highly focusing …

A directional sound source can create auditory objects at distinct locations in a room by
varying its directivity pattern and orientation. Recent perceptual studies could show that the …

In spatial audio reproduction with sound projection, instead of placing loudspeakers in
specific directions, virtual sources are created by projecting sound on reflective boundaries …

The icosahedral loudspeaker array (IKO) uses strongly focused sound beams to
“orchestrate” reflecting surfaces resulting in the perception of auditory objects at distinct …

This habilitation outlines the scientific works and methods undertaken to free virtual acoustic
rendering based on the spherical harmonic basis functions (Ambisonics) from excessive …

This chapter introduces auditory objects that can be created by adjustable-directivity sources
in rooms. After showing basic positioning properties in distance and direction, we describe …

Abstract (EN) This thesis deals with optimization of sound projectors, based on knowledge
on the auditory perception. In sound projection it is desired that the lagging projected sound …

Sound projecting audio systems realize the reproduction of sound from different directions
via reflections paths using highly focusing sound sources. However, the limited focusing …