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All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year Sort by creator [A → Z]' creator [Z → A]' publishing year ↑ (asc)' publishing year ↓ (desc)' title [A → Z]' title [Z → A]' Simple Search Page: 1 2 3 4 5 Hits 21 – 40 of 89 21 Advanced Audio Interface for Phonetic Speech Recognition in a High Noise Environment In: DTIC AND NTIS (2000) BASE Show details 22 The effects of symmetrical and asymmetrical sensorineural hearing loss on speech perception in noise Ostler, Dale Anthony, 1960-. - 2000 BASE Show details 23 Spatial Audio Displays for Speech Communications: A Comparison of Free Field and Virtual Acoustic Environments Nelson, W. T.; Bolia, Robert S.; Ericson, Mark A.... In: DTIC AND NTIS (1999) BASE Show details 24 Sound Basics: A Primer in Psychoacoustics Elias, Bartholomew In: DTIC AND NTIS (1998) BASE Show details 25 The Acoustic-to-Articulatory Mapping of Voiced and Fricated Speech Riegelsberger, Edward L. In: DTIC AND NTIS (1997) Abstract: Acoustic-to-articulatory mapping is the estimation of a time-varying vocal-tract shape from an acoustic waveform. While most research in acoustic-to-articulatory mapping considers only purely voiced speech, this dissertation investigates the problem for speech that includes fricatives. Aspects of fricative production and perception challenge many of the assumptions and techniques used in existing acoustic-to-articulatory mapping algorithms. This work investigates these issues and extends existing techniques for the acoustic-to-articulatory mapping of purely voiced speech to unvoiced and voiced fricatives in isolation and in continuous speech. Linked-codebooks are used to examine the acoustic-to-articulatory mapping of voiced and unvoiced static fricatives. Acoustic-to-articulatory mapping performance is evaluated by analyzing articulatory estimation error for a number of synthetic fricatives and phonetic class clustering for a collection of real fricatives. Scatter plots of acoustic-to-articulatory mapping results on unvoiced fricatives demonstrate good phonetic class clustering and inter-class separability. For equivalent performance on voiced fricatives, the acoustic features had to be modified to deemphasize frequencies below 1 kHz. Linked-codebook lookup, along with dynamic programming, is used to perform acoustic-to-articulatory mapping of continuous, purely voiced speech. Direct application of the algorithm to speech containing fricatives suggests that purely voiced acoustic-to-articulatory mapping provides contextual information that can improve fricative acoustic-to-articulatory mapping. A five step procedure is developed for the dynamic acoustic-to-articulatory mapping of continuous, voiced speech containing intervocalic fricatives. A collection of vowel-fricative-vowel tokens is used for development and testing. In most cases, the estimated articulatory ; Doctoral thesis Keyword: *ACOUSTIC WAVES; *SPEECH ANALYSIS; *SPEECH ARTICULATION; ACOUSTIC DATA; ACOUSTIC MAPPING; ACOUSTIC SCATTERING; ACOUSTIC SIGNALS; Acoustics; ALGORITHMS; AUDITORY PERCEPTION; DYNAMIC PROGRAMMING; Linguistics; PHONETICS; THESES; Voice Communications; WAVEFORMS URL: http://www.dtic.mil/docs/citations/ADA334781 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA334781 BASE Hide details 26 Perception of Auditory Events: Attentional Limitations Pastore, Richard In: DTIC AND NTIS (1997) BASE Show details 27 Fuzzy Controller for Acoustic Vehicle Target Intercept Guidance Bessaini, Anthony F; Pinkos, Robert F In: DTIC AND NTIS (1997) BASE Show details 28 Methods and Metrics of Voice Communications. Kanki, Barbara G.; Prinzo, O. V. In: DTIC AND NTIS (1996) BASE Show details 29 A Two-Phase Damped-Exponential Model for Speech Synthesis Arb, H. A. In: DTIC (1996) BASE Show details 30 Diphone-Based Speech Recognition Using Neural Networks. Cantrell, Mark E. In: DTIC AND NTIS (1996) BASE Show details 31 A Self-Organizing Neural Network Architecture for Auditory and Speech Perception with Applications to Acoustic and other Temporal Prediction Problems. Grossberg, Stephen In: DTIC AND NTIS (1995) BASE Show details 32 The Unsupervised Acquisition of a Lexicon from Continuous Speech. De Marcken, Carl In: DTIC AND NTIS (1995) BASE Show details 33 A Robust Loose Coupling for Speech Recognition and Natural Understanding. Ringger, Eric K. In: DTIC AND NTIS (1995) BASE Show details 34 Language Identification Through Parallel Phone Recognition. Chou, C. S.; Zissman, M. A. In: DTIC AND NTIS (1995) BASE Show details 35 MMN And P3 Auditory Evoked Potentials within and Across Phonetic Categories. Stokes, Martha A. In: DTIC AND NTIS (1995) BASE Show details 36 Training of Homoscedastic Hidden Markov Models For Automatic Speech Recognition. Luginbuhl, Tod E; Rosseau, Michael L In: DTIC AND NTIS (1995) BASE Show details 37 External/Internal Data Fusion Testbed: History, Components and Experimental Analysis. Parker, John G. In: DTIC AND NTIS (1995) BASE Show details 38 High-Order Modeling Techniques for Continuous Speech Recognition. Ostendorf, Mari In: DTIC AND NTIS (1995) BASE Show details 39 A Self-Organizing Neural Network Architecture for Auditory and Speech Perception with Applications to Acoustic and Other Temporal Prediction Problems. Cohen, Michael; Grossberg, Stephen In: DTIC AND NTIS (1994) BASE Show details 40 A Self-Organizing Neural Network Architecture for Auditory and Speech Perception with Applications to Acoustic and Other Temporal Prediction Problems Grossberg, Stephen; Cohen, Michael In: DTIC AND NTIS (1994) BASE Show details Page: 1 2 3 4 5

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