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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; Marquardt, Torsten. - : Institute of Electrical and Electronics Engineers, 2014 Abstract: Cochlear implants (CIs) are devices capable of restoring hearing function in profoundly-deaf patients to an acceptable degree of performance. An essential processing step in any cochlear implant is frequency analysis, which is usually performed via banks of filters. Here, we simulate and test the suitability of different filters and filterbank architectures for CIs with respect to their performance in speech intelligibility. Four different filters were implemented in an established model of CI hearing, the tone-excited vocoder, namely: GTF (Gammatone Filter), DAPGF (Differentiated All-Pole GTF), OZGF (One-Zero GTF) and BUTF (Butterworth). Three filterbank parameters, the filter order ( N), the filter quality factor ( Q) and the number of channels ( Ch), and their combinations were tested using objective and subjective metrics. Simulation results show that all filters tested are suitable for CI implementation, but that the choice of Q and N parameter values is crucial. For most conditions, optimal ( N,Q) combinations were within few units away from the combination (2, 4). ; 7 page(s) Keyword: Cochlear implants; Filter transfer functions; Speech; Vocoders URL: http://hdl.handle.net/1959.14/1029957 BASE Hide 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) BASE Show 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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