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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 Hits 1 – 5 of 5 1 The Multi-Session Audio Research Project (MARP) Corpus: Goals, Design and Initial Findings Lawson, A. D.; Stauffer, A. R.; Cupples, E. J.... In: DTIC (2009) BASE Show details 2 Long Term Examination of Intra-Session and Inter-Session Speaker Variability Lawson, A. D.; Stauffer, A. R.; Smolenski, B. Y.... In: DTIC (2009) BASE Show details 3 Perturbation and Pitch Normalization as Enhancements to Speaker Recognition Lawson, A; Linderman, M; Leonard, M; Stauffer, A; Pokines, B; Carlin, M In: DTIC (2009) Abstract: This study proposes an approach to improving speaker recognition through the process of minute vocal tract length perturbation of training files, coupled with pitch normalization for both train and test data. The notion of perturbation as a method for improving the robustness of training data for supervised classification is taken from the field of optical character recognition, where distorting characters within a certain range has shown strong improvements across disparate conditions. This paper demonstrates that acoustic perturbation, in this case analysis, distortion, and resynthesis of vocal tract length for a given speaker, significantly improves speaker recognition when the resulting files are used to augment or replace the training data. A pitch length normalization technique is also discussed, which is combined with perturbation to improve open-set speaker recognition from an EER of 20% to 6.7%. ; See also ADM002314. IEEE International Conference on Acoustics, Speech and Signal Processing (34th) held in Taipei, Taiwan on 19-24 April 2009. U.S. Government or Federal Purpose Rights License, The original document contains color images. Keyword: *PERTURBATIONS; *SPEECH ANALYSIS; Acoustics; CLASSIFICATION; COMPONENT REPORTS; PITCH NORMALIZATION; RECOGNITION; SOUND PITCH; SPEAKER RECOGNITION; SPEECH; SPEECH SYNTHESIS; SYMPOSIA; Voice Communications URL: http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA555288 http://www.dtic.mil/docs/citations/ADA555288 BASE Hide details 4 Long Term Examination of Intra-Session and Inter-Session Speaker Variability Lawson, A. D.; Staufer, A. R.; Smolenski, B. Y.... In: DTIC (2009) BASE Show details 5 Australian Literature to 1900 - a Guide to Information-Sources - Andrews,bg, Wilde,wh Lawson, A.. - : Modern Humanities Research Association, 1983 BASE Show details

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