IEEE Communications Magazine

Issue 11 • Nov. 1993

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Displaying Results 1 - 8 of 8
  • Speech synthesis in telecommunications

    Publication Year: 1993, Page(s):46 - 53
    Cited by:  Papers (7)  |  Patents (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1241 KB)

    A text-to-speech synthesis system that synthesizes speech from unrestricted text is discussed. The text analysis system, which includes text preprocessing, phrasing and intonation, and letter-to-phoneme conversion, is described. The analyzed text is represented by phonetic characters, stress values, minor- and major-phrase markers, and intonational descriptors. The synthesizer uses this informatio... View full abstract»

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  • Standardizing speech-coding technology for network applications

    Publication Year: 1993, Page(s):26 - 33
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1560 KB)

    The different approaches to the standardization of speech coding technology applications are reviewed. The activities of the International Telephone and Telegraph Consultative Committee (CCITT) are highlighted, although other standards setting bodies often follow a similar process. Standardization of speech coding involves the interaction of various experts, who define performance requirements, de... View full abstract»

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  • Wideband speech and audio coding

    Publication Year: 1993, Page(s):34 - 44
    Cited by:  Papers (48)  |  Patents (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1954 KB)

    Typical parameters of wideband speech and audio signals, including digitized versions of each, potential applications, and available transmission media, are described. Facts about human auditory perception that are exploited in audio coding and quality measures that play an important role in coder evaluations and designs are reviewed. Techniques for efficient coding of wideband speech and audio si... View full abstract»

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  • Whither speech recognition: the next 25 years

    Publication Year: 1993, Page(s):54 - 62
    Cited by:  Papers (9)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1178 KB)

    The fundamentals of speech recognition are reviewed. The dimensions of the speech recognition task, speech feature analysis, pattern classification using hidden Markov models, language processing, and the current accuracy of speech recognition systems are discussed. The applications of speech recognition in telecommunications, voice dictation, speech understanding for data retrieval, and consumer ... View full abstract»

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  • Tools for real-time signal-processing research

    Publication Year: 1993, Page(s):64 - 74
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2310 KB)

    The use of digital signal processing (DSP) devices for real-time communication applications is discussed. The authors comment on distinguishing aspects of DSP architecture, describing not so much individual processors as those features common to DSPs and distinct from modern general-purpose processors. They describe three DSP32xx-based machines that support DSP algorithm implementation: SURF-board... View full abstract»

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  • Speech codecs for personal communications

    Publication Year: 1993, Page(s):76 - 83
    Cited by:  Papers (11)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1020 KB)

    Some of the many factors that go into the design of a personal communications system (PCS) are considered. The ways in which these factors affect the speech codec are discussed. Cell size, multiple access methods, and the trade-offs in PCS design are examined. Possible future designs of PCSs and their codecs are described.<> View full abstract»

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  • A synchronous digital hierarchy network management system

    Publication Year: 1993, Page(s):84 - 90
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1884 KB)

    The critical issues in multivendor environments and operation systems of telecommunication networks essential to speeding up the handling of service orders and service restoration after failures are discussed. To overcome these problems as the software backlog grows, the authors propose the application of a telecommunications management network (TMN) architecture together with an object-oriented n... View full abstract»

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  • Defining, designing, and evaluating digital communication systems

    Publication Year: 1993, Page(s):91 - 101
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1383 KB)

    The fundamental relationships in defining, designing, and evaluating digital communication system performance are reviewed. The concept of bandwidth-limited and power-limited systems and how such conditions influence the design when the choices are confined to M-ary phase-shift keying (MPSK) and M-ary frequency-shift keying (MFSK) modulation are examined. The definitions and computations involved ... View full abstract»

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IEEE Communications Magazine, considered by most to be their most important member benefit, provides timely information on all aspects of communications: monthly feature articles describe technology, systems, services, market trends, development methods, regulatory and policy issues, and significant global events.

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Osman Gebizlioglu
Huawei Technologies