Sound Capture for Human/Machine Interfaces: Practical Aspects of Microphone Array Signal Processing

✍ Scribed by Wolfgang Herbordt (auth.)

• Publisher: Springer-Verlag Berlin Heidelberg
• Year: 2005
• Tongue: English
• Leaves: 277
• Series: Lecture Notes in Control and Information Science 315
• Edition: 1
• Category: Library

✦ Synopsis

With a continuously increasing desire for natural and comfortable human/machine interaction, the acoustic interface of any terminal for multimedia or telecommunication services is challenged to allow seamless and hands-free audio communication. Sound Capture for Human-Machine Interfaces introduces the practical aspects of microphone array signal processing and presents various combinations of beamforming and acoustic echo cancellation.

✦ Table of Contents

1 Introduction....Pages 1-4
2 Space-Time Signals....Pages 5-24
3 Optimum Linear Filtering....Pages 25-39
4 Optimum Beamforming for Wideband Non-stationary Signals....Pages 41-97
5 A Practical Audio Acquisition System Using a Robust GSC (RGSC)....Pages 99-132
6 Beamforming Combined with Multi-channel Acoustic Echo Cancellation....Pages 133-161
7 Efficient Real-Time Realization of an Acoustic Human/Machine Front-End....Pages 163-203
8 Summary and Conclusions....Pages 205-208
A Estimation of Signal-to-Interference-Plus-Noise Ratios (SINRs) Exploiting Non-stationarity....Pages 209-223
B Experimental Setups and Acoustic Environments....Pages 225-228
C Notations....Pages 229-250

✦ Subjects

Control Engineering;Signal, Image and Speech Processing;User Interfaces and Human Computer Interaction;Artificial Intelligence (incl. Robotics);Automation and Robotics;Acoustics