Spatial Sound and Virtual Acoustics

Synthesis of Directional Sources Using Wave Field Synthesis, Possibilities, and Limitations

The synthesis of directional sources using wave field synthesis is described. The proposed formulation relies on an ensemble of elementary directivity functions based on a subset of spherical harmonics. These ...

Authors: E. Corteel

Spatial Sound and Virtual Acoustics

Authors: Ville Pulkki, Christof Faller, Aki Härmä, Tapio Lokki and Werner de Bruijn

Virtual Reality System with Integrated Sound Field Simulation and Reproduction

A real-time audio rendering system is introduced which combines a full room-specific simulation, dynamic crosstalk cancellation, and multitrack binaural synthesis for virtual acoustical imaging. The system is ...

Authors: Tobias Lentz, Dirk Schröder, Michael Vorländer and Ingo Assenmacher

Interface for Barge-in Free Spoken Dialogue System Based on Sound Field Reproduction and Microphone Array

A barge-in free spoken dialogue interface using sound field control and microphone array is proposed. In the conventional spoken dialogue system using an acoustic echo canceller, it is indispensable to estimat...

Authors: Shigeki Miyabe, Yoichi Hinamoto, Hiroshi Saruwatari, Kiyohiro Shikano and Yosuke Tatekura

3D-Audio Matting, Postediting, and Rerendering from Field Recordings

We present a novel approach to real-time spatial rendering of realistic auditory environments and sound sources recorded live, in the field. Using a set of standard microphones distributed throughout a real-wo...

Authors: Emmanuel Gallo, Nicolas Tsingos and Guillaume Lemaitre

Extraction of 3D Information from Circular Array Measurements for Auralization with Wave Field Synthesis

The state of the art of wave field synthesis (WFS) systems is that they can reproduce sound sources and secondary (mirror image) sources with natural spaciousness in a horizontal plane, and thus perform satisf...

Authors: Diemer de Vries, Lars Hörchens and Peter Grond

Sound Field Analysis Based on Analytical Beamforming

The plane wave decomposition is an efficient analysis tool for multidimensional fields, particularly well fitted to the description of sound fields, whether these ones are continuous or discrete, obtained by a...

Authors: M. Guillaume and Y. Grenier

Fast Time-Domain Edge-Diffraction Calculations for Interactive Acoustic Simulations

The inclusion of edge diffraction has long been recognized as an improvement to geometrical-acoustics (GA) modeling techniques, particularly for acoustic simulations of complex environments that are represente...

Authors: Paul T Calamia and U Peter Svensson

Equalization of Loudspeaker and Room Responses Using Kautz Filters: Direct Least Squares Design

DSP-based correction of loudspeaker and room responses is becoming an important part of improving sound reproduction. Such response equalization (EQ) is based on using a digital filter in cascade with the repr...

Authors: Matti Karjalainen and Tuomas Paatero

Modelling and Order of Acoustic Transfer Functions Due to Reflections from Augmented Objects

It is commonly accepted that the sound reflections from real physical objects are much more complicated than what usually is and can be modelled by room acoustics modelling software. The main reason for this l...

Authors: Martin Kuster and Diemer de Vries

A Robust Statistical-Based Speaker's Location Detection Algorithm in a Vehicular Environment

This work presents a robust speaker's location detection algorithm using a single linear microphone array that is capable of detecting multiple speech sources under the assumption that there exist nonoverlappe...

Authors: Jwu-Sheng Hu, Chieh-Cheng Cheng and Wei-Han Liu