Assessment And Prediction Of Speech Quality In Telecommunications

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Assessment and Prediction of Speech Quality in Telecommunications

Sebastian Möller
Assessment and Prediction of Speech Quality in Telecommunications Book PDF

Author : Sebastian Möller
Publisher : Springer Science & Business Media
Page : 253 pages
File Size : 50,9 Mb
Release : 2012-12-06
Category : Science
ISBN : 9781475731170

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Assessment and Prediction of Speech Quality in Telecommunications by Sebastian Möller Pdf

The quality of a telecommunication voice service is largely inftuenced by the quality of the transmission system. Nevertheless, the analysis, synthesis and prediction of quality should take into account its multidimensional aspects. Quality can be regarded as a point where the perceived characteristics and the desired or expected ones meet. A schematic is presented which classifies different entities which contribute to the quality of a service, taking into account conversational, user as weIl as service related contributions. Starting from this concept, perceptively relevant constituents of speech communication quality are identified. The perceptive factors result from ele ments of the transmission configuration. A simulation model is developed and implemented which allows the most relevant parameters of traditional trans mission configurations to be manipulated, in real time and for the conversation situation. Inputs into the simulation are instrumentally measurable quality elements commonly used in transmission planning of telephone networks. A reduced set of these quality elements forms a basis for models which aim at predicting mouth-to-ear quality as it would be perceived by a user of the sys tem. These models are an important tool for the planner of telecommunication networks, as they allow the expected quality to be estimated in advance, even before the network has been set up. Two well-known models (the SUBMOD and the E-model) are analyzed in more detail, with an emphasis on the psy choacoustic and psychophysical backgrounds.

Speech Quality of VoIP

Alexander Raake
Speech Quality of VoIP Book PDF

Author : Alexander Raake
Publisher : John Wiley & Sons
Page : 336 pages
File Size : 48,8 Mb
Release : 2007-01-11
Category : Technology & Engineering
ISBN : 9780470032992

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Speech Quality of VoIP by Alexander Raake Pdf

Finally a comprehensive overview of speech quality in VoIP from the user's perspective! Speech Quality of VoIP is an essential guide to assessing the speech quality of VoIP networks, whilst addressing the implications for the design of VoIP networks and systems. This book bridges the gap between the technical network-world and the psychoacoustic world of quality perception. Alexander Raake’s unique perspective combines awareness of the technical characteristics of VoIP networks and original research concerning the perception of speech transmitted across them. Starting from the network designer’s point of view, the different characteristics of the network are addressed, and then linked to features perceived by users. This book provides an overview of the available knowledge on the principal, relevant aspects of speech and speech quality perception, of speech quality assessment, and of transmission properties of telephone and VoIP networks, and of the related perceptual features and resulting speech quality. Discussing new research into the specific time-varying degradations VoIP brings along, but also the considerable potential of quality improvement to be achieved with wideband speech transmission, Alexander Raake demonstrates how network and service characteristics impact on the users perception of quality. Speech Quality of VoIP: Offers an insight into speech quality of VoIP from a user's perspective. Presents an overview of different modelling approaches and a parametric network-planning model for quality prediction in VoIP networks. Draws on innovative new research on the quality degradation characteristic of VoIP. Explains in detail how telephone speech quality can be greatly enhanced with VoIP’s wideband speech transmission capability. Assesses the vast collection of references into the technical and scientific literature related to VoIP quality. Illustrates concepts throughout with mathematical models, algorithms and simulations. Speech Quality of VoIP is the definitive guide for researchers, engineers and network planners working in the field of VoIP, Quality of Service, and speech communication processing in telecommunications. Advanced undergraduate and graduate students on telecommunication and networking courses will also find this text an invaluable resource.

Integral and Diagnostic Intrusive Prediction of Speech Quality

Nicolas Côté
Integral and Diagnostic Intrusive Prediction of Speech Quality Book PDF

Author : Nicolas Côté
Publisher : Springer Science & Business Media
Page : 255 pages
File Size : 42,9 Mb
Release : 2011-05-06
Category : Technology & Engineering
ISBN : 9783642184635

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Integral and Diagnostic Intrusive Prediction of Speech Quality by Nicolas Côté Pdf

This work deals with the instrumental measurement methods for the perceived quality of transmitted speech. These measures simulate the speech perception process employed by human subjects during auditory experiments. The measure standardized by the International Telecommunication Union (ITU), called “Wideband-Perceptual Speech Quality Evaluation (WB-PESQ)”, is not able to quantify all these perceived characteristics on a unidimensional quality scale, the Mean Opinion Score (MOS) scale. Recent experimental studies showed that subjects make use of several perceptual dimensions to judge about the quality of speech signals. In order to represent the signal at a higher stage of perception, a new model, called “Diagnostic Instrumental Assessment of Listening quality (DIAL)”, has been developed. It includes a perceptual and a cognitive model which simulate the whole quality judgment process. Except for strong discontinuities, DIAL predicts very well speech quality of different speech processing and transmission systems, and it outperforms the WB-PESQ.

Quality of Telephone-Based Spoken Dialogue Systems

Sebastian Möller
Quality of Telephone Based Spoken Dialogue Systems Book PDF

Author : Sebastian Möller
Publisher : Springer Science & Business Media
Page : 480 pages
File Size : 42,9 Mb
Release : 2005-12-28
Category : Technology & Engineering
ISBN : 9780387231860

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Quality of Telephone-Based Spoken Dialogue Systems by Sebastian Möller Pdf

Quality of Telephone-Based Spoken Dialogue Systems is a systematic overview of assessment, evaluation, and prediction methods for the quality of services such as travel and touristic information, phone-directory and messaging, or telephone-banking services. A new taxonomy of quality-of-service is presented which serves as a tool for classifying assessment and evaluation methods, for planning and interpreting evaluation experiments, and for estimating quality. A broad overview of parameters and evaluation methods is given, both on a system-component level and for a fully integrated system. Three experimental investigations illustrate the relationships between system characteristics and perceived quality. The resulting information is needed in all phases of system specification, design, implementation, and operation. Although Quality of Telephone-Based Spoken Dialogue Systems is written from the perspective of an engineer in telecommunications, it is an invaluable source of information for professionals in signal processing, communication acoustics, computational linguistics, speech and language sciences, human factor design and ergonomics

Human Information Processing in Speech Quality Assessment

Stefan Uhrig
Human Information Processing in Speech Quality Assessment Book PDF

Author : Stefan Uhrig
Publisher : Springer Nature
Page : 169 pages
File Size : 54,8 Mb
Release : 2021-06-03
Category : Technology & Engineering
ISBN : 9783030713898

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Human Information Processing in Speech Quality Assessment by Stefan Uhrig Pdf

This book provides a new multi-method, process-oriented approach towards speech quality assessment, which allows readers to examine the influence of speech transmission quality on a variety of perceptual and cognitive processes in human listeners. Fundamental concepts and methodologies surrounding the topic of process-oriented quality assessment are introduced and discussed. The book further describes a functional process model of human quality perception, which theoretically integrates results obtained in three experimental studies. This book’s conceptual ideas, empirical findings, and theoretical interpretations should be of particular interest to researchers working in the fields of Quality and Usability Engineering, Audio Engineering, Psychoacoustics, Audiology, and Psychophysiology.

Deep Learning Based Speech Quality Prediction

Gabriel Mittag
Deep Learning Based Speech Quality Prediction Book PDF

Author : Gabriel Mittag
Publisher : Springer Nature
Page : 171 pages
File Size : 51,6 Mb
Release : 2022-02-24
Category : Technology & Engineering
ISBN : 9783030914790

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Deep Learning Based Speech Quality Prediction by Gabriel Mittag Pdf

This book presents how to apply recent machine learning (deep learning) methods for the task of speech quality prediction. The author shows how recent advancements in machine learning can be leveraged for the task of speech quality prediction and provides an in-depth analysis of the suitability of different deep learning architectures for this task. The author then shows how the resulting model outperforms traditional speech quality models and provides additional information about the cause of a quality impairment through the prediction of the speech quality dimensions of noisiness, coloration, discontinuity, and loudness.

Simulating Conversations for the Prediction of Speech Quality

Thilo Michael
Simulating Conversations for the Prediction of Speech Quality Book PDF

Author : Thilo Michael
Publisher : Springer Nature
Page : 157 pages
File Size : 46,8 Mb
Release : 2023-06-30
Category : Technology & Engineering
ISBN : 9783031318443

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Simulating Conversations for the Prediction of Speech Quality by Thilo Michael Pdf

This book discusses the simulation of conversations through a novel approach of predicting speech quality based on the interactions of two simulated interlocutors. The author describes the setup of a simulation environment that is capable of simulating human dialogue on the speech level. The impact of delay and bursty packet loss on VoIP conversations is investigated and modeled for the use in the simulation. Based on parameters extracted from simulated conversations, the author proposes extensions to the E-model, a parametric model standardized by the International Telecommunications Union, in order to predict the quality of the simulated conversations. The author shows that predictions based on the simulated conversations outperform models that rely on the transmission parameters alone.

Audiovisual Quality Assessment and Prediction for Videotelephony

Benjamin Belmudez
Audiovisual Quality Assessment and Prediction for Videotelephony Book PDF

Author : Benjamin Belmudez
Publisher : Springer
Page : 184 pages
File Size : 54,5 Mb
Release : 2014-12-27
Category : Technology & Engineering
ISBN : 9783319141664

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Audiovisual Quality Assessment and Prediction for Videotelephony by Benjamin Belmudez Pdf

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.

Communication Acoustics

Jens Blauert
Communication Acoustics Book PDF

Author : Jens Blauert
Publisher : Springer Science & Business Media
Page : 379 pages
File Size : 42,8 Mb
Release : 2005-12-05
Category : Technology & Engineering
ISBN : 9783540274377

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Communication Acoustics by Jens Blauert Pdf

Communication Acoustics deals with the fundamentals of those areas of acoustics which are related to modern communication technologies. Due to the advent of digital signal processing and recording in acoustics, these areas have enjoyed an enormous upswing during the last 4 decades. The book chapters represent review articles covering the most relevant areas of the field. They are written with the goal of providing students with comprehensive introductions. Further they offer a supply of numerous references to the relevant literature. Besides its usefulness as a textbook, this will make the book a source of valuable information for those who want to improve or refresh their knowledge in the field of communication acoustics – and to work their way deeper into it. Due to its interdisciplinary character Communication Acoustics is bound to attract readers from many different areas, such as: acoustics, cognitive science, speech science, and communication technology.

Quality Engineering

Sebastian Möller
Quality Engineering Book PDF

Author : Sebastian Möller
Publisher : Springer Nature
Page : 202 pages
File Size : 43,8 Mb
Release : 2023-05-23
Category : Technology & Engineering
ISBN : 9783662656150

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Quality Engineering by Sebastian Möller Pdf

Der Begriff der Qualität und der Gebrauchstauglichkeit hat in der Informations- und Kommunikationstechnik sowie der Informatik eine herausragende Bedeutung. Der Autor führt in diese Thematik ein, indem er zunächst die Fachbegriffe und die Grundlagen der Psychophysik und Psychometrie erläutert. Darauf aufbauend wird der Kreislauf einer menschenorientierten Systementwicklung vorgestellt. Die Messung und Vorhersage von Qualität und Gebrauchstauglichkeit wird anhand von Beispielen veranschaulicht, u. a. für Sprach- und multimodale Dialogsysteme.

Handbook of Research on Mobile Multimedia, Second Edition

Khalil, Ismail
Handbook of Research on Mobile Multimedia Second Edition Book PDF

Author : Khalil, Ismail
Publisher : IGI Global
Page : 1154 pages
File Size : 49,5 Mb
Release : 2008-09-30
Category : Computers
ISBN : 9781605660479

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Handbook of Research on Mobile Multimedia, Second Edition by Khalil, Ismail Pdf

"The book is intended to clarify the hype, which surrounds the concept of mobile multimedia through introducing the idea in a clear and understandable way, with a strong focus on mobile solutions and applications"--Provided by publisher.

Voice and Speech Quality Perception

Ute Jekosch
Voice and Speech Quality Perception Book PDF

Author : Ute Jekosch
Publisher : Springer Science & Business Media
Page : 208 pages
File Size : 46,6 Mb
Release : 2005-12-16
Category : Science
ISBN : 9783540288602

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Voice and Speech Quality Perception by Ute Jekosch Pdf

Foundations of Voice and Speech Quality Perception starts out with the fundamental question of: "How do listeners perceive voice and speech quality and how can these processes be modeled?" Any quantitative answers require measurements. This is natural for physical quantities but harder to imagine for perceptual measurands. This book approaches the problem by actually identifying major perceptual dimensions of voice and speech quality perception, defining units wherever possible and offering paradigms to position these dimensions into a structural skeleton of perceptual speech and voice quality. The emphasis is placed on voice and speech quality assessment of systems in artificial scenarios. Many scientific fields are involved. This book bridges the gap between two quite diverse fields, engineering and humanities, and establishes the new research area of Voice and Speech Quality Perception.

Quality of Experience

Sebastian Möller,Alexander Raake
Quality of Experience Book PDF

Author : Sebastian Möller,Alexander Raake
Publisher : Springer
Page : 431 pages
File Size : 41,6 Mb
Release : 2014-07-08
Category : Technology & Engineering
ISBN : 9783319026817

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Quality of Experience by Sebastian Möller,Alexander Raake Pdf

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.

Dimension-based Quality Modeling of Transmitted Speech

Marcel Wältermann
Dimension based Quality Modeling of Transmitted Speech Book PDF

Author : Marcel Wältermann
Publisher : Springer Science & Business Media
Page : 208 pages
File Size : 47,5 Mb
Release : 2013-01-03
Category : Technology & Engineering
ISBN : 9783642350191

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Dimension-based Quality Modeling of Transmitted Speech by Marcel Wältermann Pdf

In this book, speech transmission quality is modeled on the basis of perceptual dimensions. The author identifies those dimensions that are relevant for today's public-switched and packet-based telecommunication systems, regarding the complete transmission path from the mouth of the speaker to the ear of the listener. Both narrowband (300-3400 Hz) as well as wideband (50-7000 Hz) speech transmission is taken into account. A new analytical assessment method is presented that allows the dimensions to be rated by non-expert listeners in a direct way. Due to the efficiency of the test method, a relatively large number of stimuli can be assessed in auditory tests. The test method is applied in two auditory experiments. The book gives the evidence that this test method provides meaningful and reliable results. The resulting dimension scores together with respective overall quality ratings form the basis for a new parametric model for the quality estimation of transmitted speech based on the perceptual dimensions. In a two-step model approach, instrumental dimension models estimate dimension impairment factors in a first step. The resulting dimension estimates are combined by a Euclidean integration function in a second step in order to provide an estimate of the total impairment.

Management of Speech and Video Telephony Quality in Heterogeneous Wireless Networks

Błażej Lewcio
Management of Speech and Video Telephony Quality in Heterogeneous Wireless Networks Book PDF

Author : Błażej Lewcio
Publisher : Springer Science & Business Media
Page : 161 pages
File Size : 45,9 Mb
Release : 2013-11-20
Category : Technology & Engineering
ISBN : 9783319021027

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Management of Speech and Video Telephony Quality in Heterogeneous Wireless Networks by Błażej Lewcio Pdf

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.