Time-Domain Beamforming and Blind Source Separation

Speech Input in the Car Environment
2009. Auflage 2009
ISBN: 978-0-387-68835-0
Verlag: Springer Us

Buch, Englisch, Band 3, 225 Seiten, Format (B × H): 159 mm x 241 mm, Gewicht: 1140 g

Reihe: Lecture Notes in Electrical Engineering

Time-domain Beamforming and Convolutive Blind Source Separation addresses the problem of separating spontaneous multi-party speech by way of microphone arrays (beamformers) and adaptive signal processing techniques. While existing techniques requires a Double-Talk Detector (DTD) that interrupts the adaptation when the target is active, the described method addresses the separation problem using continuous, uninterrupted adaptive algorithms. The advantage of such an approach is twofold: Firstly, the algorithm development is much simpler since no detection mechanism needs to be designed and no threshold to be tuned. Secondly, the performance can be improved due to the adaptation during periods of double-talk.

Zielgruppe

Research

Autoren/Hrsg.

Bourgeois, Julien

Minker, Wolfgang

Fachgebiete

• Technische Wissenschaften Verkehrstechnik | Transportgewerbe Fahrzeugtechnik
• Mathematik | Informatik EDV | Informatik Informatik Künstliche Intelligenz Spracherkennung, Sprachverarbeitung
• Technische Wissenschaften Elektronik | Nachrichtentechnik Nachrichten- und Kommunikationstechnik

Inhaltsverzeichnis

Account for Random Microstructure in Multiscale Models.- Multiscale Modeling of Tensile Failure in Fiber-Reinforced Composites.- Adaptive Concurrent Multi-Level Model for Multiscale Analysis of Composite Materials Including Damage.- Multiscale and Multi-Level Modeling of Composites.- A Micro-Mechanics-Based Notion of Stress for use in the Determination of Continuum-Level Mechanical Properties via Molecular Dynamics.- Multiscale Modeling and Simulation of Deformation in Nanoscale Metallic Multilayered Composites.- Multiscale Modeling of Composites Using Analytical Methods.- Nested Nonlinear Multiscale Frameworks for the Analysis of Thick-Section Composite Materials and Sructures.- Predicting Thermooxidative Degradation and Performance of High-Temperature Polymer Matrix Composites.- Modeling of Stiffness, Strength, and Structure-Property Relationship in Crosslinked Silica Aerogel.- Multiscale Modeling of the Evolution of Damage in Heterogeneous Viscoelastic Solids.- Multiscale Modeling for Damage Analysis.- Hierarchical Modeling of Deformation of Materials from the Atomic to the Continuum Scale.