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IEEE Communications Magazine

Issue 1 • Jan. 1990

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Displaying Results 1 - 6 of 6
  • High-quality coding of telephone speech and wideband audio

    Publication Year: 1990, Page(s):10 - 20
    Cited by:  Papers (16)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (835 KB)

    Digital speech technology is reviewed, with the emphasis on applications demanding high-quality reproduction of the speech signal. Examples of such applications are network telephony, ISDN terminals for audio teleconferencing, and systems for the storage of audio signals, which include the important subclass of wideband speech. Depending on the application, the bandwidth of input speech can vary f... View full abstract»

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  • Speech coding technology for ATM networks

    Publication Year: 1990, Page(s):21 - 27
    Cited by:  Papers (12)  |  Patents (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (709 KB)

    A type of speech coding for asynchronous transfer mode (ATM) is described. Cell processing, which improves service quality, is taken into account. Missing-cell recovery methods are discussed, and the distinctive features of missing-cell recovery methods used with low-bit-rate coding are examined. An example of the speech quality obtained using speech coding techniques in the ATM networks is descri... View full abstract»

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  • A perspective on speech recognition

    Publication Year: 1990, Page(s):28 - 34
    Cited by:  Papers (8)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (866 KB)

    The authors outline the science behind speech recognition technology and describe briefly the contributions of engineering, computer science, and mathematics to it. They discuss the state-of-the-art in both technique and performance, including some examples of successful applications. This is followed by a critical evaluation of the technology with respect to technical, commercial, and societal cr... View full abstract»

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  • Speech synthesis from text

    Publication Year: 1990, Page(s):35 - 41
    Cited by:  Papers (4)  |  Patents (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (664 KB)

    Text analysis for speech synthesis is described in relation to the information needed in speech production. This includes a pronouncing dictionary and letter-to-sound rules, morphological analysis and accent assignment, and syntactic analysis. Prosody control rules (fundamental frequency control and segmental duration control) are examined. Speech units for synthesis and parametric representation ... View full abstract»

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  • Speaker verification: a tutorial

    Publication Year: 1990, Page(s):42 - 48
    Cited by:  Papers (46)  |  Patents (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (765 KB)

    The task of speaker verification, a subset of the general problem of speaker recognition is defined. The feature selection and pattern matching steps of the recognition procedure are examined. Speaker verification system design and performance are discussed, and databases for evaluating them are briefly considered. An example of a speaker verification system is described. An overview of industry r... View full abstract»

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  • Echo cancellation and applications

    Publication Year: 1990, Page(s):49 - 55
    Cited by:  Papers (29)  |  Patents (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (699 KB)

    Practical echo cancellation techniques, in particular, those used in telecommunications, are reviewed. The various situations in which echoes are generated are examined. Echo path modeling techniques and adaptive algorithms for coefficient control are reviewed. Current international standardization activities are discussed, and echo canceler implementation considerations are set forth. These inclu... View full abstract»

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Aims & Scope

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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Editor-in-Chief
Osman Gebizlioglu
Huawei Technologies