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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 Hits 1 – 20 of 55 1 Cochlear implant filterbank design and optimization : a simulation study Cosentino, Stefano; Falk, Tiago H; McAlpine, David. - : Institute of Electrical and Electronics Engineers, 2014 BASE Show details 2 Towards objective measures of speech intelligibility for Cochlear Implant users in reverberant environments Cosentino, Stefano; Marquardt, Torsten; McAlpine, David. - : Piscataway, NJ : IEEE, 2012 BASE Show details 3 Objective Measurement of the Speech Transmission Quality of Vocoders by Means of the Speech Transmission Index van Gils, Bastiaan J.; van Wijngaarden, Sander J. In: DTIC (2005) Abstract: Nearly all types of military speech communication involve the use of so-called (narrow band) voice coders or vocoders. Usually the Speech Transmission Index (STI) uses artificial test signals, which can not be reproduced by vocoders with the usual fidelity. Therefore the STI is not able to evaluate vocoders at this time. Although it is theoretically feasible to measure the Speech Transmission Index with natural speech instead of the usual artificial test signals, each of the various speech-based STI measurement methods proposed in the literature has its own shortcomings and inaccuracies. A new procedure is proposed for estimating a speech based modulation transfer function (MTF), on which the STI is based, that approaches the accuracy of conventional STI implementations based on artificial signals. The new method enables evaluation of vocoders by means of the STI. Applying the method to a voice coder database shows promising results, giving an average squared correlation coefficient R2 of 0.87 between the subjective CVC scores and the calculated STI for male speech. ; See also ADM001856, New Directions for Improving Audio Effectiveness (Nouvelles orientations pour l'amelioration des techniques audio)., The original document contains color images. Published in RTO-MP-HFM-123. Keyword: *CODERS; *NARROWBAND; *SPEECH TRANSMISSION; *VOCODERS; ACCURACY; Anatomy and Physiology; COMPONENT REPORTS; Cybernetics; DATA BASES; FOREIGN REPORTS; INDEXES; MALES; MEASUREMENT; METHODOLOGY; MTF(MODULATION TRANSFER FUNCTION); NATO FURNISHED; NETHERLANDS; QUALITY; REPRODUCTION; SIGNALS; SPEECH; STI(SPEECH TRANSMISSION INDEX); SYMPOSIA; TEST AND EVALUATION; VOICE COMMUNICATIONS URL: http://www.dtic.mil/docs/citations/ADA454435 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA454435 BASE Hide details 4 Speech Analysis and Synthesis Based on Pitch-Synchronous Segmentation of the Speech Waveform. Kang, George S.; Fransen, Lawrence J. In: DTIC AND NTIS (1994) BASE Show details 5 The Intelligibility of Natural and LPC-Vocoded Words and Sentences Presented to Native and Non-Native Speakers of English Mack, M.; Tierney, J.; Boyle, M. E. In: DTIC AND NTIS (1990) BASE Show details 6 Vocabulary Synthesis Based on Line Spectrum Pairs Everett, Stephanie S. In: DTIC AND NTIS (1989) BASE Show details 7 The Intelligibility of Natural and Vocoded Semantically Anomalous Sentences: A Comparative Analysis of English Monolinguals and German-English Bilinguals. Mack, Molly; Tierney, Joseph In: DTIC AND NTIS (1987) BASE Show details 8 Hopfield Model Applied to Vowel and Consonant Discrimination Gold, Bernard In: DTIC AND NTIS (1986) BASE Show details 9 The Intelligibility of Non-Vocoded and Vocoded Semantically Anomalous Sentences. Mack,M A; Gold,B In: DTIC AND NTIS (1985) BASE Show details 10 A Comparative Analysis of Whispered and Normally Phonated Speech Using an LPC-10 Vocoder Wilson,Johnny B; Mosko,James D In: DTIC AND NTIS (1985) BASE Show details 11 Intelligibility Performance of the LPC-10 and APC/SQ Speech Algorithms in a Fading Environment. Trebaol,George O; Heckman,Randy L In: DTIC AND NTIS (1985) BASE Show details 12 Automatic Speaker Recognition over Military Communication Systems. A Feasibility Evaluation. Everett,S S In: DTIC AND NTIS (1985) BASE Show details 13 Subjective and Objective Evaluation of Pitch Extractors for LPC and Harmonic Deviations Vocoders. Viswanathan,V R; Russell,W H In: DTIC AND NTIS (1984) BASE Show details 14 A Recursive Linear Predictive Vocoder. Janssen,W A In: DTIC AND NTIS (1983) BASE Show details 15 Vector/Matrix Quantization for Narrow-Bandwidth Digital Speech Compression. Wong,David Y In: DTIC AND NTIS (1982) BASE Show details 16 Research on Narrowband Communications. Roucos,Salim; Schwartz,Richard; Makhoul,John In: DTIC AND NTIS (1982) BASE Show details 17 Research on Narrowband Communications Makhoul, John; Roukos, Salim; Schwartz, Richard In: DTIC AND NTIS (1981) BASE Show details 18 Research on Narrowband Communications Makhoul, John; Roukos, Salim; Schwartz, Richard In: DTIC AND NTIS (1981) BASE Show details 19 Research on Narrowband Communications Makhoul, John; Krasner, Michael; Roukos, Salim... In: DTIC AND NTIS (1981) BASE Show details 20 Research on Narrowband Communications Makhoul, John; Roukos, Salim; Krasner, Micheal... In: DTIC AND NTIS (1981) BASE Show details Page: 1 2 3

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