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IEEE Transactions on Acoustics, Speech, and Signal Processing

Issue 3 • June 1979

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Displaying Results 1 - 25 of 25
  • [Front cover and table of contents]

    Publication Year: 1979, Page(s): 0
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    Freely Available from IEEE
  • Reliable voiced/Unvoiced decision

    Publication Year: 1979, Page(s):263 - 267
    Cited by:  Papers (5)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (635 KB)

    A speech processing system has been developed which is capable of providing an accurate indication of whether or not a given speech segment is voiced or unvoiced. In comparison to other existing techniques, this one avails itself for easy implementation, and it offers a realiable voiced/unvoiced (V/UV) decision even in the presence of some competing speech and noise sources. In addition, the V/UV ... View full abstract»

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  • Comments on "Discrete Fourier transform via Walsh transform"

    Publication Year: 1979, Page(s):295 - 296
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (225 KB)

    It is pointed out that the method presented in our paper [1] is different from the methods referred to in the above paper, and our method has a small number of computations and inherently has no error. View full abstract»

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  • Comments on modern methods for spectrum estimation

    Publication Year: 1979, Page(s):298 - 299
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (285 KB)

    It is argued that several computation procedures commonly used in spectrum estimation are contrary to the basic idioms of statistical analysis. View full abstract»

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  • [Back cover]

    Publication Year: 1979, Page(s): c4
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    Freely Available from IEEE
  • A quantitative estimate of the possibility of confusion of Japanese phonemes

    Publication Year: 1979, Page(s):296 - 298
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB)

    The problem of quantitatively estimating the possibility of auditory confusion in Japanese phonemes is discussed. Using Mahalanobis' distance, the range of fluctuation in a phoneme is derived by grouping monosyllables into phoneme units. In the case of the stop consonant, over 80 percent of our estimates proved to have good correspondence with the actual data, and it was made clear that the direct... View full abstract»

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  • Acoustic surface waves

    Publication Year: 1979, Page(s):302 - 303
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    First Page of the Article
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  • Compensation of tissue absorption in emission tomography

    Publication Year: 1979, Page(s):213 - 218
    Cited by:  Papers (161)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (832 KB)

    This paper presents a technique for overcoming the problem of tissue absorption in emission tomography. Given a set of equispaced projections in the interval (0, 2π), it is possible to derive an exact formula for recovering the spectrum of the image. The formula is obtained by solving a linear partial-differential equation that links the derivatives of the spectrum with respect to absorption ... View full abstract»

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  • Spectral root homomorphic deconvolution system

    Publication Year: 1979, Page(s):223 - 233
    Cited by:  Papers (31)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (952 KB)

    In this paper, we develop a new homomorphic deconvolution system that is useful when the signal to be deconvolved is a convolution of two components, one of which is a train of pulses and for the other we have some a priori information on its approximate number of poles and zeros. The system that we develop is essentially the same as the logarithmic homomorphic deconvolution system (LHDS) [1]-[3] ... View full abstract»

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  • FFT algorithm for both input and output pruning

    Publication Year: 1979, Page(s):291 - 292
    Cited by:  Papers (44)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    When an input data sequence has a large number of zeros and the number of output samples required to be computed is small, significant time saving can be achieved by a judicious combination of the pruning algorithms for decimation-in-time (DIT) and decimation-in-frequency (DIF). It is shown that the complementary structure of the DIT and the DIF formulations makes possible the application of the p... View full abstract»

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  • Discrete Fourier transform via Walsh transform

    Publication Year: 1979, Page(s): 288
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (152 KB)

    The purpose of this correspondence is to point out a number of significant references, in the area of Walsh-Fourier transform conversion, that were missed in a recent paper [1]. View full abstract»

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  • Applications of digital signal processing

    Publication Year: 1979, Page(s):301 - 302
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    First Page of the Article
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  • Spectral sensitivity analysis of PARCOR parameters for speech data compression

    Publication Year: 1979, Page(s):273 - 280
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (792 KB)

    Spectral sensitivity analysis is introduced to measure the spectral deviation due to feature parameter perturbation in the linear prediction of speech. Using a 10 percent log sensitivity measure which is closely connected with the perception of spectral deviation, some factors influential on feature parameter sensitivity are evaluated. Three sensitivity reductions, 1) nonlinear transformation of P... View full abstract»

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  • Nonrecursive digital filter designs by means of Korovkin kernels

    Publication Year: 1979, Page(s):218 - 222
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (440 KB)

    In this paper, the general class of Korovkin kernels is introduced as window functions in the design of FIR digital filters. In particular, the utilization of the Jackson kernel in window designs is discussed in detail. The Jackson window is applied to the design of a low-pass filter with a transition region. The advantages and limitations of the Jackson window designs are discussed. View full abstract»

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  • On the use of symmetry in FFT computation

    Publication Year: 1979, Page(s):233 - 239
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB)

    It is well known that if a finite duration, N-point sequence x(n) possesses certain symmetries, the computation of its discrete Fourier transform (DFT) can be obtained from an FFT of size N/2 or smaller. This is accomplished by first preprocessing the sequence, taking the FFT of the processed sequence, and then postprocessing the results to give the desired transform. In this paper we show how a s... View full abstract»

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  • The complex adaptive lattice structure

    Publication Year: 1979, Page(s):292 - 295
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    The recursion equations are derived for the adaptive lattice structure in order to process complex data. An example is given to illustrate the convergence capability. View full abstract»

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  • Linear phase approximation for two-dimensional recursive digital filters

    Publication Year: 1979, Page(s):288 - 291
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (440 KB)

    A new technique is presented for the design of two-dimensional IIR digital filters with symmetrical amplitude response and linear phase specifications. The design method is described and an example illustrating the use of the technique is also included. View full abstract»

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  • Estimation of vocal-tract shapes from acoustical analysis of the speech wave: The state of the art

    Publication Year: 1979, Page(s):281 - 285
    Cited by:  Papers (23)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (536 KB)

    The state of the art of the method for estimating vocal-tract area functions based on the linear prediction of speech is discussed. Limitations and problems involved in this method are: 1) frequency band limitation of the signal, 2) source characteristics, 3) boundary conditions, 4) energy losses within the vocal tract, 5) vocal-tract length estimation, 6) dynamics of the vocal tract, and 7) evalu... View full abstract»

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  • Articulatory modeling and phonetics

    Publication Year: 1979, Page(s):299 - 300
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

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  • Statistical design of autoregressive-moving average digital filters

    Publication Year: 1979, Page(s):240 - 247
    Cited by:  Papers (38)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (800 KB)

    Procedures are presented for the systematic design of digital filters that contain poles and zeros. The procedures are simple, fast, and effective. All of the important algorithms are of the Levinson-type. The first key idea in the paper is that one may begin a design by posing a linear prediction problem for a stochastic sequence. The second is that a high-order "whitening" filter may be construc... View full abstract»

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  • High resolution spectral estimation for noisy signals

    Publication Year: 1979, Page(s):286 - 287
    Cited by:  Papers (39)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (216 KB)

    A spectral model containing poles and zeros is derived for the high resolution spectral estimation of data containing an auto-regressive (all-pole) signal, interference, and white noise. A computationally efficient method for computing the spectrum is introduced. Examples of some spectra calculated by this method are presented and compared with the autoregressive spectral estimator. View full abstract»

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  • Applied time series analysis

    Publication Year: 1979, Page(s):300 - 301
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

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  • Predictive coding of speech signals and subjective error criteria

    Publication Year: 1979, Page(s):247 - 254
    Cited by:  Papers (184)  |  Patents (37)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (768 KB)

    Predictive coding methods attempt to minimize the rms error in the coded signal. However, the human ear does not perceive signal distortion on the basis of rms error, regardless of its spectral shape relative to the signal spectrum. In designing a coder for speech signals, it is necessary to consider the spectrum of the quantization noise and its relation to the speech spectrum. The theory of audi... View full abstract»

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  • Automatic speaker identification for a large population

    Publication Year: 1979, Page(s):255 - 263
    Cited by:  Papers (9)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (904 KB)

    Design of speaker identification schemes for a small number of speakers (around 10) with a high degree of accuracy in a controlled environment is a practical proposition today. When the number of speakers is large (say, above 20 or 30), many of these schemes cannot be directly utilized as both recognition error and computation time increase monotonically with population size. A multistage classifi... View full abstract»

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  • Estimation of vocal-tract areas: The need for acoustical measurements

    Publication Year: 1979, Page(s):268 - 273
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (680 KB)

    It is well known that the transfer function of a lossless vocal tract (much less that of a tract with losses) does not uniquely specify its area function. Further, the speech wave does not uniquely specify the transfer function. In spite of this proven nonuniqueness, several investigators during the past few years have proposed methods for estimating area functions from the speech wave. In this pa... 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