› › Improved Techniques For Low Bit Rate Speech Coding

Digital Speech

Author : A. M. Kondoz

Publisher : John Wiley & Sons

Page : 458 pages

File Size : 10,2 MB

Release : 2005-06-14

Category : Technology & Engineering

ISBN : 0470870095

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Book Description

Building on the success of the first edition Digital Speech offers extensive new, updated and revised material based upon the latest research. This Second Edition continues to provide the fundamental technical background required for low bit rate speech coding and the hottest developments in digital speech coding techniques that are applicable to evolving communication systems. Features new chapters on Pitch Estimation and Voice-Unvoiced Classification of Speech, Harmonic Speech Coding and Multimode Speech Coding Presents a comprehensively revised chapter entitled Analysis by Synthesis LPC Coding including specific examples of popular speech coders such as CELP (Code-Excited Linear Predictive) Coding Contains an updated chapter on Efficient LPC Quantization Methods including MSVQ and anti-aliasing filtering Discusses Voice Activity Detection (VAD) methods Offers expanded coverage of speech enhancement techniques such as echo cancellation and noise suppression Written by a well-known, highly respected academic, this authoritative volume will be invaluable to practising engineers, network designers, computer scientists and advanced students in communications, electrical and electronic engineering.



Ultra Low Bit-Rate Speech Coding

Author : V. Ramasubramanian

Publisher : Springer

Page : 156 pages

File Size : 10,79 MB

Release : 2014-10-24

Category : Technology & Engineering

ISBN : 1493913417

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Book Description

"Ultra Low Bit-Rate Speech Coding" focuses on the specialized topic of speech coding at very low bit-rates of 1 Kbits/sec and less, particularly at the lower ends of this range, down to 100 bps. The authors set forth the fundamental results and trends that form the basis for such ultra low bit-rates to be viable and provide a comprehensive overview of various techniques and systems in literature to date, with particular attention to their work in the paradigm of unit-selection based segment quantization. The book is for research students, academic faculty and researchers, and industry practitioners in the areas of speech processing and speech coding.



Speech Coding Algorithms

Author : Wai C. Chu

Publisher : John Wiley & Sons

Page : 584 pages

File Size : 46,14 MB

Release : 2004-03-04

Category : Computers

ISBN : 0471668877

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Book Description

Speech coding is a highly mature branch of signal processing deployed in products such as cellular phones, communication devices, and more recently, voice over internet protocol This book collects many of the techniques used in speech coding and presents them in an accessible fashion Emphasizes the foundation and evolution of standardized speech coders, covering standards from 1984 to the present The theory behind the applications is thoroughly analyzed and proved



Advances in Speech Coding

Author : Bishnu S. Atal

Publisher : Springer Science & Business Media

Page : 376 pages

File Size : 44,28 MB

Release : 2012-12-06

Category : Technology & Engineering

ISBN : 1461532663

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Book Description

Speech coding has been an ongoing area of research for several decades, yet the level of activity and interest in this area has expanded dramatically in the last several years. Important advances in algorithmic techniques for speech coding have recently emerged and excellent progress has been achieved in producing high quality speech at bit rates as low as 4.8 kb/s. Although the complexity of the newer more sophisticated algorithms greatly exceeds that of older methods (such as ADPCM), today's powerful programmable signal processor chips allow rapid technology transfer from research to product development and permit many new cost-effective applications of speech coding. In particular, low bit rate voice technology is converging with the needs of the rapidly evolving digital telecom munication networks. The IEEE Workshop on Speech Coding for Telecommunications was held in Vancouver, British Columbia, Canada, from September 5 to 8, 1989. The objective of the workshop was to provide a forum for discussion of recent developments and future directions in speech coding. The workshop attracted over 130 researchers from several countries and its technical program included 51 papers.



Principles of Speech Coding

Author : Tokunbo Ogunfunmi

Publisher : CRC Press

Page : 386 pages

File Size : 23,23 MB

Release : 2010-04-29

Category : Technology & Engineering

ISBN : 1439882541

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Book Description

It is becoming increasingly apparent that all forms of communication-including voice-will be transmitted through packet-switched networks based on the Internet Protocol (IP). Therefore, the design of modern devices that rely on speech interfaces, such as cell phones and PDAs, requires a complete and up-to-date understanding of the basics of speech





Intelligent Speech Signal Processing

Author : Nilanjan Dey

Publisher : Academic Press

Page : 210 pages

File Size : 48,8 MB

Release : 2019-04-02

Category : Technology & Engineering

ISBN : 0128181303

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Book Description

Intelligent Speech Signal Processing investigates the utilization of speech analytics across several systems and real-world activities, including sharing data analytics, creating collaboration networks between several participants, and implementing video-conferencing in different application areas. Chapters focus on the latest applications of speech data analysis and management tools across different recording systems. The book emphasizes the multidisciplinary nature of the field, presenting different applications and challenges with extensive studies on the design, development and management of intelligent systems, neural networks and related machine learning techniques for speech signal processing.



Springer Handbook of Speech Processing

Author : Jacob Benesty

Publisher : Springer

Page : 1170 pages

File Size : 31,77 MB

Release : 2007-11-22

Category : Technology & Engineering

ISBN : 3540491279

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Book Description

This handbook plays a fundamental role in sustainable progress in speech research and development. With an accessible format and with accompanying DVD-Rom, it targets three categories of readers: graduate students, professors and active researchers in academia, and engineers in industry who need to understand or implement some specific algorithms for their speech-related products. It is a superb source of application-oriented, authoritative and comprehensive information about these technologies, this work combines the established knowledge derived from research in such fast evolving disciplines as Signal Processing and Communications, Acoustics, Computer Science and Linguistics.



Audio Signal Processing and Coding

Author : Andreas Spanias

Publisher : John Wiley & Sons

Page : 544 pages

File Size : 27,48 MB

Release : 2006-09-11

Category : Technology & Engineering

ISBN : 047004196X

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Book Description

An in-depth treatment of algorithms and standards for perceptual coding of high-fidelity audio, this self-contained reference surveys and addresses all aspects of the field. Coverage includes signal processing and perceptual (psychoacoustic) fundamentals, details on relevant research and signal models, details on standardization and applications, and details on performance measures and perceptual measurement systems. It includes a comprehensive bibliography with over 600 references, computer exercises, and MATLAB-based projects for use in EE multimedia, computer science, and DSP courses. An ftp site containing supplementary material such as wave files, MATLAB programs and workspaces for the students to solve some of the numerical problems and computer exercises in the book can be found at ftp://ftp.wiley.com/public/sci_tech_med/audio_signal



Introduction to Digital Speech Processing

Author : Lawrence R. Rabiner

Publisher : Now Publishers Inc

Page : 212 pages

File Size : 25,68 MB

Release : 2007

Category : Computers

ISBN : 1601980701

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Book Description

Provides the reader with a practical introduction to the wide range of important concepts that comprise the field of digital speech processing. Students of speech research and researchers working in the field can use this as a reference guide.