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IEEE Transactions on Acoustics, Speech, and Signal Processing

Issue 1 • Date February 1977

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Displaying Results 1 - 22 of 22
  • [Front cover and table of contents]

    Publication Year: 1977, Page(s): 0
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    Freely Available from IEEE
  • Editorial: Words of thanks

    Publication Year: 1977, Page(s): 1
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    Freely Available from IEEE
  • Comments on "On the stability of the least mean-square inverse process in two-dimensional digital filters"

    Publication Year: 1977, Page(s):92 - 93
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (186 KB)

    Simple counterexamples show that the main result in the above paper is false. View full abstract»

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  • [Back cover]

    Publication Year: 1977, Page(s): c4
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    Freely Available from IEEE
  • The use of time-domain selection for improved linear prediction

    Publication Year: 1977, Page(s):34 - 39
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (472 KB)

    We show by theoretical argument and by experiment with both synthetic and real data that selection of an undriven segment of voiced speech for analysis by linear predictive coding (LPC) gives more accurate estimates of the poles of the vocal-tract model. In the case of voiced nasal phonemes, this technique provides a simple algorithm for separately determining the poles and the zeros in the model ... View full abstract»

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  • Automatic generation of time efficient digital signal processing software

    Publication Year: 1977, Page(s):74 - 79
    Cited by:  Papers (26)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (704 KB)

    Optimal use of high-speed programmable digital signal processors generally demands familiarity with machine architectural features and hence, production of programs whose structure reflects and exploits those features. In contrast, it is apparent that little effort has been made to develop programming techniques which fully realize the signal processing computational capability of standard minicom... View full abstract»

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  • A study of techniques for finding the zeros of linear phase FIR digital filters

    Publication Year: 1977, Page(s):96 - 98
    Cited by:  Papers (27)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    Since the majority of the zeros of standard finite-duration impulse-response (FIR) linear phase digital filters (e.g., low pass, band-pass, etc.) are located on the unit circle in the z-plane, it is possible to exploit this information in devising an efficient method for accurately solving for the locations of these zeros. To perform this task, three standard algorithms for finding the roots of a ... View full abstract»

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  • Comparison of optimal quantizations of speech reflection coefficients

    Publication Year: 1977, Page(s):9 - 23
    Cited by:  Papers (26)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1384 KB)

    Four quantization schemes for the reflection coefficients obtained from linear prediction speech analysis are theoretically compared. The asymptotic performance of each scheme is developed and compared using various definitions of "optimal." If the coefficients are treated as independent parameters, it is shown that a fixed bit rate minimum deviation quantization without noiseless source coding ca... View full abstract»

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  • On the use of autocorrelation analysis for pitch detection

    Publication Year: 1977, Page(s):24 - 33
    Cited by:  Papers (135)  |  Patents (25)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (968 KB)

    One of the most time honored methods of detecting pitch is to use some type of autocorrelation analysis on speech which has been appropriately preprocessed. The goal of the speech preprocessing in most systems is to whiten, or spectrally flatten, the signal so as to eliminate the effects of the vocal tract spectrum on the detailed shape of the resulting autocorrelation function. The purpose of thi... View full abstract»

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  • Degrees of freedom for projection imaging

    Publication Year: 1977, Page(s):63 - 73
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1208 KB)

    This paper presents the use of the gramian as an aid in defining the degrees of freedom (DOF) in projection imaging systems. The gramian is developed for a general continuous-discrete imaging model and is then applied to the specific case of projection imaging. The theoretical development shows the general structure of the gramian to be quite well behaved and indicates where redundant data are ach... View full abstract»

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  • Digital filtering using pseudo fermat number transforms

    Publication Year: 1977, Page(s):79 - 83
    Cited by:  Papers (23)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (512 KB)

    In this paper pseudo Fermat number transforms (FNT's) are discussed. These transforms are defined in a ring of integers modulo an integer submultiple of a pseudo Fermat number, and can be computed without multiplications while allowing a great flexibility in word length selection. Complex pseudo FNT's are then introduced and are shown to relieve some of the length limitations of conventional Ferma... View full abstract»

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  • Selected papers in digital signal processing

    Publication Year: 1977, Page(s): 103
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (160 KB)

    First Page of the Article
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  • Some new results on discrete system stability

    Publication Year: 1977, Page(s):101 - 102
    Cited by:  Papers (28)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (168 KB)

    New properties of the denominator polynomial of a stable discrete system transfer function are introduced along with two forms of stability test for such systems. View full abstract»

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  • Speech analysis homomorphic prediction

    Publication Year: 1977, Page(s):40 - 49
    Cited by:  Papers (39)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1048 KB)

    Linear prediction is a generally accepted method for obtaining all-pole speech representations. However, in many situations (e.g., nasalization studies) spectral zeros are important and a more general modeling procedure is required. Unfortunately, the need for pitch synchronization has limited the success of available techniques. This paper explores a novel approach to pole-zero analysis, called h... View full abstract»

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  • Analog discrete-time filter for speech synthesis

    Publication Year: 1977, Page(s):50 - 55
    Cited by:  Papers (4)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1224 KB)

    A controllable analog discrete-time filter is described that can act as an all-pole or all-pass filter and is especially useful for predictive speech synthesis. It is based on a piecewise-uniform transmission line structure as in a "wave digital filter." The control parameters are the \tanh ^{-1} function of the reflection coefficients of this line, also kno... View full abstract»

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  • On reflection coefficients and the Cholesky decomposition

    Publication Year: 1977, Page(s):93 - 96
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (480 KB)

    The autocorrelation and covariance methods are the two most popular analysis techniques for linear predictive coding of speech. Recent work on the covariance method has utilized the Cholesky decomposition for solving the normal equations. A set of intermediate parameters in the Cholesky approach closely resembles the reflection coefficients in the autocorrelation method, and some workers have trea... View full abstract»

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  • The theory of transient intermodulation distortion

    Publication Year: 1977, Page(s):2 - 8
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (632 KB)

    The existing theory of transient intermodulation distortion (TIM) is extended to cover the calculation of the duration of intermodulation bursts. It is shown that feedback values in excess of some 40 dB will cause large internal overshoots within the amplifier. The clipping of these overshoots due to the limited dynamic margins of the amplifier driver stages is shown to give rise to long periods d... View full abstract»

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  • On the sensitivity of charge-coupled device transversal filter response to charge-transfer inefficiency

    Publication Year: 1977, Page(s):98 - 101
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    The design of charge-coupled device (CCD) transversal discrete-time filters with approximately linear phase and satisfying general magnitude constraints is considered. The charge-transfer inefficiency of the CCD is included in the problem formulation and an effective sensitivity analysis procedure is given for the charge-transfer inefficiency parameter. View full abstract»

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  • Waveform quantization and coding

    Publication Year: 1977, Page(s):103 - 104
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB)

    First Page of the Article
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  • Power spectra of ADPCM

    Publication Year: 1977, Page(s):56 - 62
    Cited by:  Papers (5)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    We consider the power spectra of signals modulated by adaptive differential pulse-code modulators (ADPCM) and adaptive delta modulators (ADM). A technique for computing these spectra without the significant use of hardware multipliers is presented. A fast Fourier transform (FFT) implementation is then described that uses an ADPCM signal as input and accomplishes the necessary code conversion and c... View full abstract»

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  • Generalized phase spectrum

    Publication Year: 1977, Page(s):84 - 90
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (624 KB)

    The generalized discrete transform (GT)rand its modified version (MGT)rhave been defined and their properties have been developed. The phase or position spectra and the shift-invariant power spectra for these transforms have been developed. For the (GT)rfamily, these transforms range from the Walsh-Hadamard transform (WHT) to the discrete Fourier transform (DFT) wh... View full abstract»

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  • Receiver operating characteristics for a linearly thresholded coherence estimation detector

    Publication Year: 1977, Page(s):90 - 92
    Cited by:  Papers (26)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    A method is presented for establishing a threshold so that in the absence of a coherent source only a specified percentage of coherence estimates exceeds the threshold. Also presented is an algorithm for computing the probability that a coherence estimate exceeds the established threshold for a given coherent source level. View full abstract»

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Aims & Scope

This Transactions ceased production in 1990. The current retitled publication is IEEE Transactions on Signal Processing.

Full Aims & Scope