Angebote zu "Binaural" (8 Treffer)

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Signal Enhancement with Variable Span Linear Fi...
120,36 € *
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This book introduces readers to the novelconcept of variable span speech enhancement filters, and demonstrates how itcan be used for effective noise reduction in various ways. Further, the bookprovides the accompanying Matlab code, allowing readers to easily implement themain ideas discussed. Variable span filters combine the ideas of optimal linearfilters with those of subspace methods, as they involve the jointdiagonalization of the correlation matrices of the desired signal and thenoise. The book shows how some well-known filter designs, e.g. the minimumdistortion, maximum signal-to-noise ratio, Wiener, and tradeoff filters (includingtheir new generalizations) can be obtained using the variable span filterframework. It then illustrates how the variable span filters can be applied invarious contexts, namely in single-channel STFT-based enhancement, inmultichannel enhancement in both the time and STFT domains, and, lastly, intime-domain binaural enhancement. In these contexts, the properties of thesefilters are analyzed in terms of their noise reduction capabilities and desiredsignal distortion, and the analyses are validated and further explored insimulations.

Anbieter: Dodax
Stand: 07.07.2020
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Fundamentals of Speech Enhancement
78,90 CHF *
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This book presents and develops several important concepts of speech enhancement in a simple but rigorous way. Many of the ideas are new; not only do they shed light on this old problem but they also offer valuable tips on how to improve on some well-known conventional approaches. The book unifies all aspects of speech enhancement, from single channel, multichannel, beamforming, time domain, frequency domain and time–frequency domain, to binaural in a clear and flexible framework. It starts with an exhaustive discussion on the fundamental best (linear and nonlinear) estimators, showing how they are connected to various important measures such as the coefficient of determination, the correlation coefficient, the conditional correlation coefficient, and the signal-to-noise ratio (SNR). It then goes on to show how to exploit these measures in order to derive all kinds of noise reduction algorithms that can offer an accurate and versatile compromise between noise reduction and speech distortion.

Anbieter: Orell Fuessli CH
Stand: 07.07.2020
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A Conceptual Framework for Noise Reduction
68,90 CHF *
ggf. zzgl. Versand

Though noise reduction and speech enhancement problems have been studied for at least five decades, advances in our understanding and the development of reliable algorithms are more important than ever, as they support the design of tailored solutions for clearly defined applications. In this work, the authors propose a conceptual framework that can be applied to the many different aspects of noise reduction, offering a uniform approach to monaural and binaural noise reduction problems, in the time domain and in the frequency domain, and involving a single or multiple microphones. Moreover, the derivation of optimal filters is simplified, as are the performance measures used for their evaluation.

Anbieter: Orell Fuessli CH
Stand: 07.07.2020
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Speech and Audio Processing in Adverse Environm...
233,90 CHF *
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The book reflects the state of the art in important areas of speech and audio signal processing. It presents topics which are missed so far and most recent findings in the field. Leading international experts report on their field of work and their new results. Considerable amount of space is covered by multi-microphone systems, specific approaches for noise reduction, and evaluations of speech signals and speech processing systems. Multi-microphone systems include automatic calibration of microphones, localisation of sound sources, and source separation procedures. Also covered are recent approaches to the problem of adaptive echo and noise suppression. A novel solution allows the design of filter banks exhibiting bands spaced according to the Bark scale und especially short delay times. Furthermore, a method for engine noise reduction and proposals for improving the signal/noise ratio based on partial signal reconstruction or using a noise reference are reported. A number of contributions deal with speech quality. Besides basic considerations for quality evaluation specific methods for bandwidth extension of telephone speech are described. Procedures to reduce the reverberation of audio signals can help to increase speech intelligibility and speech recognition rates. In addition, solutions for specific applications in speech and audio signal processing are reported including, e.g., the enhancement of audio signal reproduction in automobiles and the automatic evaluation of hands-free systems and hearing aids. TOC:TRINICON-based Blind System Identification for Source Localization in Reverberant Environments.- Microphone Calibration for Multi-Channel Signal Processing.- Sound Control Algorithms in Automobiles.- Evaluation of Hands-free Terminals.- Joint Dereverberation and Acoustic Echo Cancellation in a Noisy Environment.- Speech Quality in Communication Systems.- Nonlinear Echo Cancellation Based on Spectral Shaping.- Bandwidth Extension of Telephony Speech.- Model-Based Speech Enhancement.- Low Delay Filter-Banks for Speech Processing.- A Pre-Filter for Hands-Free Car Phone Noise Reduction: Suppression of Harmonic Engine Noise Components.- Binaural Sound Segregation.- Correlation-Based TDOA-Estimation for Multiple Speech Sources.- Towards Robust Automatic Speech Recognition (ASR) in Reverberant Environments.- Spatio-Temporal Adaptive Filtering in the Wave Domain.- Low Distortion Noise Cancellation - Revival of a Classical Technique.- Virtual Hearing: A Hearing Simulation Package for Hearing Aid Design.

Anbieter: Orell Fuessli CH
Stand: 07.07.2020
Zum Angebot
Fundamentals of Speech Enhancement
55,99 € *
ggf. zzgl. Versand

This book presents and develops several important concepts of speech enhancement in a simple but rigorous way. Many of the ideas are new; not only do they shed light on this old problem but they also offer valuable tips on how to improve on some well-known conventional approaches. The book unifies all aspects of speech enhancement, from single channel, multichannel, beamforming, time domain, frequency domain and time–frequency domain, to binaural in a clear and flexible framework. It starts with an exhaustive discussion on the fundamental best (linear and nonlinear) estimators, showing how they are connected to various important measures such as the coefficient of determination, the correlation coefficient, the conditional correlation coefficient, and the signal-to-noise ratio (SNR). It then goes on to show how to exploit these measures in order to derive all kinds of noise reduction algorithms that can offer an accurate and versatile compromise between noise reduction and speech distortion.

Anbieter: Thalia AT
Stand: 07.07.2020
Zum Angebot
Speech and Audio Processing in Adverse Environm...
198,00 € *
ggf. zzgl. Versand

The book reflects the state of the art in important areas of speech and audio signal processing. It presents topics which are missed so far and most recent findings in the field. Leading international experts report on their field of work and their new results. Considerable amount of space is covered by multi-microphone systems, specific approaches for noise reduction, and evaluations of speech signals and speech processing systems. Multi-microphone systems include automatic calibration of microphones, localisation of sound sources, and source separation procedures. Also covered are recent approaches to the problem of adaptive echo and noise suppression. A novel solution allows the design of filter banks exhibiting bands spaced according to the Bark scale und especially short delay times. Furthermore, a method for engine noise reduction and proposals for improving the signal/noise ratio based on partial signal reconstruction or using a noise reference are reported. A number of contributions deal with speech quality. Besides basic considerations for quality evaluation specific methods for bandwidth extension of telephone speech are described. Procedures to reduce the reverberation of audio signals can help to increase speech intelligibility and speech recognition rates. In addition, solutions for specific applications in speech and audio signal processing are reported including, e.g., the enhancement of audio signal reproduction in automobiles and the automatic evaluation of hands-free systems and hearing aids. TOC:TRINICON-based Blind System Identification for Source Localization in Reverberant Environments.- Microphone Calibration for Multi-Channel Signal Processing.- Sound Control Algorithms in Automobiles.- Evaluation of Hands-free Terminals.- Joint Dereverberation and Acoustic Echo Cancellation in a Noisy Environment.- Speech Quality in Communication Systems.- Nonlinear Echo Cancellation Based on Spectral Shaping.- Bandwidth Extension of Telephony Speech.- Model-Based Speech Enhancement.- Low Delay Filter-Banks for Speech Processing.- A Pre-Filter for Hands-Free Car Phone Noise Reduction: Suppression of Harmonic Engine Noise Components.- Binaural Sound Segregation.- Correlation-Based TDOA-Estimation for Multiple Speech Sources.- Towards Robust Automatic Speech Recognition (ASR) in Reverberant Environments.- Spatio-Temporal Adaptive Filtering in the Wave Domain.- Low Distortion Noise Cancellation - Revival of a Classical Technique.- Virtual Hearing: A Hearing Simulation Package for Hearing Aid Design.

Anbieter: Thalia AT
Stand: 07.07.2020
Zum Angebot
A Conceptual Framework for Noise Reduction
60,50 € *
ggf. zzgl. Versand

Though noise reduction and speech enhancement problems have been studied for at least five decades, advances in our understanding and the development of reliable algorithms are more important than ever, as they support the design of tailored solutions for clearly defined applications. In this work, the authors propose a conceptual framework that can be applied to the many different aspects of noise reduction, offering a uniform approach to monaural and binaural noise reduction problems, in the time domain and in the frequency domain, and involving a single or multiple microphones. Moreover, the derivation of optimal filters is simplified, as are the performance measures used for their evaluation.

Anbieter: Thalia AT
Stand: 07.07.2020
Zum Angebot