Showing papers in "Speech Communication in 1985"

TL;DR: In this article, the authors report the results of three projects concerned with auditory word recognition and the structure of the lexicon, including the use of the Cohort Theory of word recognition.

TL;DR: Close shadowing not only provides a continuous reflection of the outcome of the process of language comprehension, but also does so relatively unaffected by post-perceptual processes, which provides us with uniquely privileged access to the properties of the system.

TL;DR: Major syntactic boundaries seemed to have little effect on the degree of co-articulation except in the slow rate of utterance, where for three of the four subjects the onset of the anterior movement for /l/ was consistently delayed.

TL;DR: Some of the implications of Ludmilla Chistovich's “spectral center of gravity” (SCG) effect for a model of the auditory representation of American English vowels are described and a model incorporating these perceptual effects is described.

TL;DR: This study compared several different spectral distortion measures including the Itakura-Saito distortion measure, the log likelihood ratio and weighted slope metric distortion measures, and two proposed perceptually based distortion measures in terms of their effects on the performance of standard dynamic time warping (DTW) based, isolated word, speech recognizer.

TL;DR: A new stochastic model for generating speech signals suitable for coding at low bit rates is described, in which the speech waveform is represented as a zero mean Gaussian process with slowly-varying power spectrum.

TL;DR: Empirical evidence of loose satisfaction of these properties with real speech will be presented, allowing the assumption of a “loose metric space” structure in the set of parametric representations of words in a given vocabulary.

TL;DR: It is demonstrated through analysis of both natural and synthetic speech that psychoacoustic concepts of spectral auditory integration in vowel perception, namely the F 1, F 2′ concept of Carlson and Fant and the 3.5 Bark auditory integration concept of Chistovich, are well modeled by the PLP method.

TL;DR: In this article, two sets of stimuli were synthesized: whispered exemplars of "Bet", "Debt" and "Get" (the initial set) and ''Bib'', "Bid" and ''Big'' (the final set).

TL;DR: A simple cumulative model of auditory processing of the speech signal turns out to be inadequate, and so too do those models which rely on the rate-of-change itself as a trigger for the spectral comparison process.

TL;DR: Both subjects showed clear evidence of nonlinearities in the stimulus-response mapping of preferred response formant frequencies, though strictly categorical responses were generally absent, and vowel imitation responses presumably reflect the joint influences of perceptual and articulatory factors that need to be disentangled in future research.

TL;DR: This work is based on results secured with a peripheral-hearing model previously tested for reliability, broken up into mutually independent parts for the specific function each fulfils between the external ear and the nerve fiber endings.

TL;DR: A significant shift in the F 1 boundary was found not only when the two harmonics closest to the formant peak were boosted, but also when more remote harmonics were boosted.

TL;DR: The acoustical and perceptual bases for several phonetic distinctions that appear to be signalled by manipulating the degree of prominence of a peak in the spectrum are reviewed.

TL;DR: Some of the more recent speech research at the Pavlov Institute in Leningrad is reviewed which suggests an affirmative answer to the second question about speech sound discrimination and an unique modulation-analyzing model of speech perception is considered.

TL;DR: How syntactic, semantic and pragmatic knowledge is used for implementing a question-answer-type dialog, and the main advantages and drawbacks of the methods chosen are discussed are discussed.

TL;DR: A model of speech production processes was used to generate stimuli along an articulatory continuum, the degree of abduction of the vocal folds for the fricatives in English words “hiss” and “his”.

TL;DR: A sampling of results serves to illustrate the connections between the psychoacoustics of speech and nonspeech, and to suggest guidelines for future work on non-speech temporal patterns, with the goal of a more complete psychophysics of complex sounds.

TL;DR: F Fant's idea that the distance between F 2 ′ and F 1 along the Bark scale serves to differentiate between front vowels of different degrees of openness was tested in matching experiments, suggesting that the subjects “know” the absolute frequency of the second formant.

TL;DR: A review of research on speech-motor perceptual and auditory processing, based particularly on studies at the I.P. Pavlov Institute of Physiology in Leningrad, finds the use of spoken responses to speech stimuli, i.e. shadowing and mimicking, is given particular emphasis.

TL;DR: The proposed VE measure permits the detection at the acoustic level of types of pathologies which do not lead to increased perturbation or noise in the speech signal and permitted discrimination between normal and dysphonic speakers.

TL;DR: A model of auditory perception by man, represented as a multilevel hierarchical automaton, with system of speech signal features based on the psychoacoustic masking effect, which makes it possible to withdraw from each speech signal spectrum all the spectral components masked by more powerful adjoining components.

TL;DR: The experiment recreates the first part of W.E. Cooper's experiment to what extent selective adaptation applies to the detection of place of articulation for French stops and shows that selective adaptation is limited by the nature of the unambiguous stimuli used as adapters.

TL;DR: The invention provides a process for the preparation of an emulsion concentrate for soft drinks by emulsifying in an aqueous extract of crushed defatted seeds from edible fruit a flavor mixture which contains an essential oil of the peel of at least one citrus fruit and/or an organoleptically neutral oil.

TL;DR: A preliminary set of results showing how the internal representation of a one-formant static sound is modified by the emergence of a second formant or by the value of the lateral slopes of the formant suggests smoothing of the spectrum due to non-infinite frequency selectivity dominates the lateral suppression effects.

TL;DR: The research group on interaction and communication was established in 1973 by Prof. Kiaus R. Scherer and focuses on multichannel studies of nonverbal behavior, i.e., vocal, gestural, and facial behavior as well as psycho-physiological reactions.