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6 Beamforming Combined with Multi-channel Acoustic Echo Cancellation
For audio signal acquisition, beamforming microphone arrays can be efficiently used for enhancing a desired signal while suppressing...
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4 Optimum Beamforming for Wideband Non-stationary Signals
Array processing techniques strive for extraction of maximum information from a propagating wave field using groups of sensors, which are located at...
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B Experimental Setups and Acoustic Environments
In this chapter, the experimental setup and the acoustic environments are described, which are used in this work for illustrating the properties of...
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5 A Practical Audio Acquisition System Using a Robust GSC (RGSC)
In the preceding chapter, we have seen that data-dependent beamformers can be efficiently realized in GSC structures. However, GSCs, or more general...
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3 Optimum Linear Filtering
In this chapter, we introduce the concept of optimum linear filtering for multiple-input multiple-output (MIMO) digital systems for solving...
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8 Summary and Conclusions
Convenient human/machine interaction requires acoustic front-ends which allow seamless and hands-free audio communication. For suppressing...
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A Estimation of Signal-to-Interference-Plus-Noise Ratios (SINRs) Exploiting Non-stationarity
Our discussion about optimum data-dependent beamforming has shown that the second-order statistics of the sensor signals w.r.t. the desired signal...
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C Notations
The following conventions are used: Lower case boldface denotes vectors, upper case boldface denotes matrices. The subscript (⋅) f...
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7 Efficient Real-Time Realization of an Acoustic Human/Machine Front-End
In the previous chapters, we discussed options for data-dependent optimum beamforming for acoustic human/machine front-ends on cost-sensitive...
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2 Space-Time Signals
In single-channel techniques for hands-free acoustic human/machine interfaces, we deal with waveforms which are functions of the continuous time. The...
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1 Introduction
With a continuously increasing desire for natural and comfortable human/machine interaction, the acoustic interface of any terminal for multimedia or...
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Real-Time Intraoperative Sensorimotor Cortex Localization and Consciousness Assessment with the Spatial and Spectral Profile of the Median Nerve Somatosensory Evoked Potentials
Map** the sensorimotor cortex is a critical first step in various applications, including awake craniotomies and invasive brain-computer interface...
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Brain-Computer Interface Research: A State-of-the-Art Summary 11
With brain-computer interfaces (BCIs), people can send information directly from their brains to computers. People can use BCIs to send messages or...
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A Summary of the 2022 BCI Award with Discussion of BCI Trends
The first chapter of this book readers introduced BCIs, the BCI Award Foundation and 2022 jury, the procedures and criteria of the awards, and the 12...
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Kee** Our Eyes on the Prize; Are We Losing Sight of the ‘Why’ in BCI for Neurorehabilitation?
Studies using BCIs based upon non-invasive, scalp recorded electroencephalography (EEG) have consistently demonstrated utility, both as scientific...
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Lecture 1—Introduction
During this lecture, we are going to first ponder about the nature of Virtual reality trying to determine a suitable definition of this concept. We...
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Characterising the Mechanism of Cell Failure Due to Shear Using a Combined Numerical and Analytical Approach
The treatment of tissue damage caused by pressure ulcers (also known as bed sores) and urinary tract infections costs the global medical industry...
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A Digital-Twin Assisted Performance Prediction Model for Industrial Gas Turbines
Performance degradation of gas path components in industrial gas turbines increases the risk of the gas turbine failure. Accurate prediction of gas...
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Vibration Structural Damage Diagnosis Based on Modal Parameters
Vibration structural damage diagnosis is crucial for ensuring the safety and reliability of structures. Based on different diagnostic objectives, the...