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Author :
Publisher :
ISBN 13 :
Total Pages : 270 pages
Book Rating : 4.3/5 (21 download)
Download or read book ITU News written by and published by . This book was released on 2002 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Avi Perry
Publisher : Cambridge University Press
ISBN 13 : 0521855950
Total Pages : 19 pages
Book Rating : 4.5/5 (218 download)
Download or read book Fundamentals of Voice-Quality Engineering in Wireless Networks written by Avi Perry and published by Cambridge University Press. This book was released on 2007 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publisher description
Author : International Telegraph and Telephone Consultative Committee. Plenary Assembly
Publisher :
ISBN 13 :
Total Pages : 448 pages
Book Rating : 4.3/5 (243 download)
Download or read book Blue Book written by International Telegraph and Telephone Consultative Committee. Plenary Assembly and published by . This book was released on 1989 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Marcel Wältermann
Publisher : Springer Science & Business Media
ISBN 13 : 3642350194
Total Pages : 208 pages
Book Rating : 4.6/5 (423 download)
Download or read book Dimension-based Quality Modeling of Transmitted Speech written by Marcel Wältermann and published by Springer Science & Business Media. This book was released on 2013-01-03 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author : Nick Zacharov
Publisher : CRC Press
ISBN 13 : 0429769911
Total Pages : 581 pages
Book Rating : 4.4/5 (297 download)
Download or read book Sensory Evaluation of Sound written by Nick Zacharov and published by CRC Press. This book was released on 2018-12-07 with total page 581 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sensory Evaluation of Sound provides a detailed review of the latest sensory evaluation techniques, specifically applied to the evaluation of sound and audio. This three-part book commences with an introduction to the fundamental role of sound and hearing, which is followed by an overview of sensory evaluation methods and associated univariate and multivariate statistical analysis techniques. The final part of the book provides several chapters with concrete real-world applications of sensory evaluation ranging from telecommunications, hearing aids design and binaural sound, via the latest research in concert hall acoustics through to audio-visual interaction. Aimed at the engineer, researcher, university student or manager the book gives insight into the advanced methods for the sensory evaluation with many application examples. Introduces the fundamental of hearing and the value of sound Provides a firm theoretical basis for advanced techniques in sensory evaluation of sound that are then illustrated with concrete examples from university research through to industrial product development Includes chapters on sensory evaluation practices and methods as well as univariate and multivariate statistical analysis Six application chapters covering a wide range of concrete sensory evaluation study examples including insight into audio-visual assessment Includes data analysis with several associated downloadable datasets Provides extensive references to the existing research literature, text books and standards
Author : Sivannarayana Nagireddi
Publisher : John Wiley & Sons
ISBN 13 : 0470377860
Total Pages : 592 pages
Book Rating : 4.4/5 (73 download)
Download or read book VoIP Voice and Fax Signal Processing written by Sivannarayana Nagireddi and published by John Wiley & Sons. This book was released on 2008-10-03 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: A complete and systematic treatment of signal processing for VoIP voice and fax This book presents a consolidated view and basic approach to signal processing for VoIP voice and fax solutions. It provides readers with complete coverage of the topic, from how things work in voice and fax modules, to signal processing aspects, implementation, and testing. Beginning with an overview of VoIP infrastructure, interfaces, and signals, the book systematically covers: Voice compression Packet loss concealment techniques DTMF detection, generation, and rejection Wideband voice modules operation VoIP Voice-Network bit rate calculations VoIP voice testing Fax over IP and modem over IP Country deviations of PSTN mapped to VoIP VoIP on different processors and architectures Generic VAD-CNG for waveform codecs Echo cancellation Caller ID features in VoIP Packetization—RTP, RTCP, and jitter buffer Clock sources for VoIP applications Fax operation on PSTN, modulations, and fax messages Fax over IP payload formats and bit rate calculations Voice packets jitter with large data packets VoIP voice quality Over 100 questions and answers on voice and more than seventy questions and answers on fax are provided at the back of the book to reinforce the topics covered throughout the text. Additionally, several clarification, interpretation, and discussion sections are included in selected chapters to aide in readers' comprehension. VoIP Voice and Fax Signal Processing is an indispensable resource for professional electrical engineers, voice and fax solution developers, product and deployment support teams, quality assurance and test engineers, and computer engineers. It also serves as a valuable textbook for graduate-level students in electrical engineering and computer engineering courses.
Author :
Publisher :
ISBN 13 :
Total Pages : 616 pages
Book Rating : 4.3/5 (227 download)
Download or read book Telecommunication Journal written by and published by . This book was released on 1988 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sebastian Möller
Publisher : Springer Science & Business Media
ISBN 13 : 1475731175
Total Pages : 253 pages
Book Rating : 4.4/5 (757 download)
Download or read book Assessment and Prediction of Speech Quality in Telecommunications written by Sebastian Möller and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author : International Telecommunication Union
Publisher :
ISBN 13 :
Total Pages : 176 pages
Book Rating : 4.3/5 (243 download)
Download or read book Report on the Activities of the International Telecommunication Union in ... written by International Telecommunication Union and published by . This book was released on 1994 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jude Hemanth
Publisher : Springer
ISBN 13 : 9811391297
Total Pages : 335 pages
Book Rating : 4.8/5 (113 download)
Download or read book Artificial Intelligence written by Jude Hemanth and published by Springer. This book was released on 2019-07-04 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the Second International Conference, SLAAI-ICAI 2018, held in Moratuwa, Sri Lanka, in December 2018. The 32 revised full papers presented were carefully reviewed and selected from numerous submissions. The papers are organized in the following topical sections: intelligence systems; neural networks; game theory; ontology engineering; natural language processing; agent based system; signal and image processing.
Author : International Telecommunication Union
Publisher :
ISBN 13 :
Total Pages : 178 pages
Book Rating : 4.F/5 ( download)
Download or read book Financial Operating Report written by International Telecommunication Union and published by . This book was released on 1995 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sebastian Möller
Publisher : Springer Nature
ISBN 13 : 3662656159
Total Pages : 202 pages
Book Rating : 4.6/5 (626 download)
Download or read book Quality Engineering written by Sebastian Möller and published by Springer Nature. This book was released on 2023-05-23 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author : Mario Montagud
Publisher : Springer
ISBN 13 : 9783319658391
Total Pages : 0 pages
Book Rating : 4.6/5 (583 download)
Download or read book MediaSync written by Mario Montagud and published by Springer. This book was released on 2018-04-10 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an approachable overview of the most recent advances in the fascinating field of media synchronization (mediasync), gathering contributions from the most representative and influential experts. Understanding the challenges of this field in the current multi-sensory, multi-device, and multi-protocol world is not an easy task. The book revisits the foundations of mediasync, including theoretical frameworks and models, highlights ongoing research efforts, like hybrid broadband broadcast (HBB) delivery and users’ perception modeling (i.e., Quality of Experience or QoE), and paves the way for the future (e.g., towards the deployment of multi-sensory and ultra-realistic experiences). Although many advances around mediasync have been devised and deployed, this area of research is getting renewed attention to overcome remaining challenges in the next-generation (heterogeneous and ubiquitous) media ecosystem. Given the significant advances in this research area, its current relevance and the multiple disciplines it involves, the availability of a reference book on mediasync becomes necessary. This book fills the gap in this context. In particular, it addresses key aspects and reviews the most relevant contributions within the mediasync research space, from different perspectives. Mediasync: Handbook on Multimedia Synchronization is the perfect companion for scholars and practitioners that want to acquire strong knowledge about this research area, and also approach the challenges behind ensuring the best mediated experiences, by providing the adequate synchronization between the media elements that constitute these experiences.
Author : Michael Vorländer
Publisher : Springer Science & Business Media
ISBN 13 : 3540488308
Total Pages : 341 pages
Book Rating : 4.5/5 (44 download)
Download or read book Auralization written by Michael Vorländer and published by Springer Science & Business Media. This book was released on 2007-10-27 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first focused and detailed textbook on acoustic virtual reality. Auralization is the creation of audible acoustic sceneries from computer-generated data. The term "auralization" is to be understood as being analogue to the well-known technique of "visualization". In visual illustration of scenes, data or any other meaningful information, in movie animation and in computer graphics, we describe the process of "making visible" as visualization. In acoustics, auralization is taking place when acoustic effects, primary sound signals or means of sound reinforcement or sound transmission, are processed to be presented by using electro-acoustic equipment. This book is organized as a comprehensive collection of basics, methodology and strategies of acoustic simulation and auralization.
Author : International Telegraph and Telephone Consultative Committee. Plenary Assembly
Publisher :
ISBN 13 :
Total Pages : 300 pages
Book Rating : 4.3/5 (91 download)
Download or read book Red Book written by International Telegraph and Telephone Consultative Committee. Plenary Assembly and published by . This book was released on 1985 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 454 pages
Book Rating : 4.:/5 (89 download)
Download or read book Newsletter of the International Telecommunication Union written by and published by . This book was released on 1994 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ernst Biersack
Publisher : Springer
ISBN 13 : 3642367844
Total Pages : 370 pages
Book Rating : 4.6/5 (423 download)
Download or read book Data Traffic Monitoring and Analysis written by Ernst Biersack and published by Springer. This book was released on 2013-03-02 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was prepared as the Final Publication of COST Action IC0703 "Data Traffic Monitoring and Analysis: theory, techniques, tools and applications for the future networks". It contains 14 chapters which demonstrate the results, quality,and the impact of European research in the field of TMA in line with the scientific objective of the Action. The book is structured into three parts: network and topology measurement and modelling, traffic classification and anomaly detection, quality of experience.
