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IEEE Transactions on Acoustics, Speech, and Signal Processing

Issue 3 • Date June 1974

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Displaying Results 1 - 14 of 14
  • [Front cover and table of contents]

    Publication Year: 1974, Page(s): 0
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    Freely Available from IEEE
  • Editorial

    Publication Year: 1974, Page(s): 163
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    Freely Available from IEEE
  • [Back cover]

    Publication Year: 1974, Page(s): c4
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    Freely Available from IEEE
  • A spectral-flatness measure for studying the autocorrelation method of linear prediction of speech analysis

    Publication Year: 1974, Page(s):207 - 217
    Cited by:  Papers (59)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1176 KB)

    The purpose of this paper is to introduce a spectral-flatness measure into the study of linear prediction analysis of speech. A spectral-flatness measure is introduced to give a quantitative measure of "whiteness," of a spectrum. It is shown that maximizing the spectral flatness of an inverse filter output or linear predictor error is equivalent to the autocorrelation method of linear prediction. ... View full abstract»

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  • An on-line speech intelligibility measurement system

    Publication Year: 1974, Page(s):203 - 206
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB)

    A speech intelligibility measurement system is described that uses a computer to administer the test, record the listener response, and automatically evaluate it on-line. This makes the intelligibility testing conditions uniform at all times and the test more efficient compared to conventional methods. The test words are presented in random scramblings by using a shuffling algorithm. The listener'... View full abstract»

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  • Design method for stable second-order digital filters

    Publication Year: 1974, Page(s):196 - 202
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (744 KB)

    The impulse-invariant equivalent digital versions of second-order bandpass analog filters are stable only for coefficients within specific ranges. The quantization of these coefficients may thus cause an originally stable filter to become unstable; the sensitivity of the digital filter to such changes is found to depend on the sampling frequency. Analytic and graphical design techniques are develo... View full abstract»

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  • Statistical design of nonrecursive digital filters

    Publication Year: 1974, Page(s):188 - 196
    Cited by:  Papers (48)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1032 KB)

    The problem of designing a finite duration impulse response (FIR) digital filter to approximate a desired spectral response is treated in this paper. The philosophy adopted is that for a given FIR filter structure, the filter coefficients can be designed to provide a minimum mean-squared error (MMSE) estimate of a random signal sequence (the design-signal) imbedded in a random noise sequence. By t... View full abstract»

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  • An improved fast Fourier transform

    Publication Year: 1974, Page(s):226 - 227
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB)

    This correspondence presents an improved implementation of the fast Fourier transform without sorting. View full abstract»

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  • A programming system for studies in speech synthesis

    Publication Year: 1974, Page(s):217 - 225
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (888 KB)

    This paper describes a speech synthesis system which is particularly suitable for experimental investigations. The synthesis is accomplished in two stages. The concatenation stage generates a schematized spectrographic representation corresponding to the symbolic input. The second stage consists in generating the corresponding acoustic signal. The steady state characterization of each phoneme is s... View full abstract»

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  • An APL program for bilinear transformations

    Publication Year: 1974, Page(s):225 - 226
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (224 KB)

    An efficient APL [1], [2] computer program is presented for the calculation of the bilinear transformations Z = (S + 1)/(S - 1) or S = (Z + 1)/(Z - 1) using the Q -matrix of Fielder [6]. The program utilizes the extremely efficient matrix manipulation and computational properties aff... View full abstract»

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  • Picture processing using one-dimensional implementations of discrete planar filters

    Publication Year: 1974, Page(s):164 - 173
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (952 KB)

    The problem of implementing a two-dimensional recursive filter as a one-dimensional recursive filter is examined. The results of the present paper show that the exact one-dimensional implementation of a planar recursive filter is a time-varying filter. However, planar filters may be approximated by one-dimensional time-invariant recursive filters. The frequency response, stability, and storage req... View full abstract»

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  • A technique for precision estimation in analog cross-spectrum measurements

    Publication Year: 1974, Page(s):186 - 188
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    The precision of an analog cross-spectrum measurement can be estimated if the product of the two signals is integrated by a voltage-to-frequency converter having separate pulse outputs for positive and negative inputs. The difference between the two pulse counts gives the spectrum reading, while their ratio is used in estimating the precision. Coherence may also be estimated in this way. View full abstract»

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  • Positivity and stability tests for multidimensional filters (discrete-continuous)

    Publication Year: 1974, Page(s):174 - 180
    Cited by:  Papers (47)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (744 KB)

    In this paper, a systematic procedure to test for stability of three-dimensional filters (discrete and continuous) is presented. The test is based on repeated applications of an extended Hermite or Schur-Cohn formulation, and use of Sturm's theorem to determine the content of a system of polynomial inequalities in a single indeterminate. The need for generating a constructive algorithm for stabili... View full abstract»

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  • Time-domain design of frequency-sampling digital filters for pulse shaping using linear programming techniques

    Publication Year: 1974, Page(s):180 - 185
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (664 KB)

    The use of time-domain specifications is demonstrated for designing frequency-sampling digital filters that generate data pulses for transmission over an ideal band-limited channel. Desired characteristics of the transmitted pulse are used to formulate the set of constraint equations and objective function used in linear programming to obtain an optimum set of filter coefficients, i.e., frequency ... 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