Management of Speech and Video Telephony Quality in Heterogeneous Wireless Networks - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Management of Speech and Video Telephony Quality in Heterogeneous Wireless Networks write by Błażej Lewcio. This book was released on 2013-11-20. Management of Speech and Video Telephony Quality in Heterogeneous Wireless Networks available in PDF, EPUB and Kindle. This book shows how networking research and quality engineering can be combined to successfully manage the transmission quality when speech and video telephony is delivered in heterogeneous wireless networks. Nomadic use of services requires intelligent management of ongoing transmission, and to make the best of available resources many fundamental trade-offs must be considered. Network coverage versus throughput and reliability of a connection is one key aspect, efficiency versus robustness of signal compression is another. However, to successfully manage services, user-perceived Quality of Experience (QoE) in heterogeneous networks must be known, and the perception of quality changes must be understood. These issues are addressed in this book, in particular focusing on the perception of quality changes due to switching between diverse networks, speech and video codecs, and encoding bit rates during active calls.
Audiovisual Quality Assessment and Prediction for Videotelephony
Audiovisual Quality Assessment and Prediction for Videotelephony - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Audiovisual Quality Assessment and Prediction for Videotelephony write by Benjamin Belmudez. This book was released on 2014-12-27. Audiovisual Quality Assessment and Prediction for Videotelephony available in PDF, EPUB and Kindle. The work presented in this book focuses on modeling audiovisual quality as perceived by the users of IP-based solutions for video communication like videotelephony. It also extends the current framework for the parametric prediction of audiovisual call quality. The book addresses several aspects related to the quality perception of entire video calls, namely, the quality estimation of the single audio and video modalities in an interactive context, the audiovisual quality integration of these modalities and the temporal pooling of short sample-based quality scores to account for the perceptual quality impact of time-varying degradations.
Quality of Experience
Quality of Experience - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Quality of Experience write by Sebastian Möller. This book was released on 2014-07-08. Quality of Experience available in PDF, EPUB and Kindle. This pioneering book develops definitions and concepts related to Quality of Experience in the context of multimedia- and telecommunications-related applications, systems and services and applies these to various fields of communication and media technologies. The editors bring together numerous key-protagonists of the new discipline “Quality of Experience” and combine the state-of-the-art knowledge in one single volume.
Neural Correlates of Quality Perception for Complex Speech Signals
Neural Correlates of Quality Perception for Complex Speech Signals - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Neural Correlates of Quality Perception for Complex Speech Signals write by Jan-Niklas Antons. This book was released on 2015-02-11. Neural Correlates of Quality Perception for Complex Speech Signals available in PDF, EPUB and Kindle. This book interconnects two essential disciplines to study the perception of speech: Neuroscience and Quality of Experience, which to date have rarely been used together for the purposes of research on speech quality perception. In five key experiments, the book demonstrates the application of standard clinical methods in neurophysiology on the one hand and of methods used in fields of research concerned with speech quality perception on the other. Using this combination, the book shows that speech stimuli with different lengths and different quality impairments are accompanied by physiological reactions related to quality variations, e.g., a positive peak in an event-related potential. Furthermore, it demonstrates that – in most cases – quality impairment intensity has an impact on the intensity of physiological reactions.
Voice over IP in Wireless Heterogeneous Networks
Voice over IP in Wireless Heterogeneous Networks - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Voice over IP in Wireless Heterogeneous Networks write by Hanane Fathi. This book was released on 2008-10-20. Voice over IP in Wireless Heterogeneous Networks available in PDF, EPUB and Kindle. The focus of this book is on mechanisms that affect the VoIP user satisfaction while not explicitly involved in the media session. The book thus investigates and proposes cross-layer techniques for realizing time-efficient control mechanisms for VoIP.
