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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 59 1 Impact of Naturalistic Field Acoustic Environments on Forensic Text-independent Speaker Verification System ... Wang, Zhenyu; Hansen, John H. L.. - : arXiv, 2022 BASE Show details 2 Speech variability: A cross-language study on acoustic variations of speaking versus untrained singing Hansen, John H. L.; Bokshi, Marigona; Khorram, Soheil In: J Acoust Soc Am (2020) BASE Show details 3 A speech perturbation strategy based on “Lombard effect” for enhanced intelligibility for cochlear implant listeners Hansen, John H. L.; Lee, Jaewook; Ali, Hussnain; Saba, Juliana N. In: J Acoust Soc Am (2020) Abstract: The goal of this study is to determine potential intelligibility benefits from Lombard speech for cochlear implant (CI) listeners in speech-in-noise conditions. “Lombard effect” (LE) is the natural response of adjusting speech production via auditory feedback due to noise exposure within acoustic environments. To evaluate intelligibility performance of natural and artificially induced Lombard speech, a corpus was generated to create natural LE from large crowd noise (LCN) exposure at 70, 80, and 90 dB sound pressure level (SPL). Clean speech was mixed with 15 and 10 dB SNR LCN and presented to five CI users. First, speech intelligibility was analyzed as a function of increasing LE and decreasing SNR. Results indicate significant improvements (p < 0.05) with Lombard speech intelligibility in noise conditions for 80 and 90 dB SPL. Next, an offline perturbation strategy was formulated to modify/perturb neutral speech so as to mimic LE through amplification of highly intelligible segments, uniform time stretching, and spectral mismatch filtering. This process effectively introduces aspects of LE into the neutral speech, with the hypothesis that this would benefit intelligibility for CI users. Significant (p < 0.01) intelligibility improvements of 13% and 16% percentage points were observed for 15 and 10 dB SNR conditions respectively for CI users. The results indicate how LE and LE-inspired acoustic and frequency-based modifications can be leveraged within signal processing to improve intelligibility of speech for CI users. Keyword: Speech Communication URL: https://doi.org/10.1121/10.0000690 http://www.ncbi.nlm.nih.gov/pubmed/32237802 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7054124/ BASE Hide details 4 Leveraging native language information for improved accented speech recognition ... Ghorbani, Shahram; Hansen, John H. L.. - : arXiv, 2019 BASE Show details 5 Quantifying Cochlear Implant Users’ Ability for Speaker Identification using CI Auditory Stimuli Mamun, Nursadul; Ghosh, Ria; Hansen, John H. L. In: Interspeech (2019) BASE Show details 6 Advancing Multi-Accented LSTM-CTC Speech Recognition using a Domain Specific Student-Teacher Learning Paradigm ... Ghorbani, Shahram; Bulut, Ahmet E.; Hansen, John H. L.. - : arXiv, 2018 BASE Show details 7 UTD-CRSS Submission for MGB-3 Arabic Dialect Identification: Front-end and Back-end Advancements on Broadcast Speech ... Bulut, Ahmet E.; Zhang, Qian; Zhang, Chunlei. - : arXiv, 2017 BASE Show details 8 Robust Harmonic Features for Classification-Based Pitch Estimation Wang, Dongmei; Yu, Chengzhu; Hansen, John H. L.. - 2017 BASE Show details 9 The Lombard effect observed in speech produced by cochlear implant users in noisy environments: A naturalistic study Lee, Jaewook; Ali, Hussnain; Ziaei, Ali. - : Acoustical Society of America, 2017 BASE Show details 10 KU-ISPL Language Recognition System for NIST 2015 i-Vector Machine Learning Challenge ... Shon, Suwon; Mun, Seongkyu; Hansen, John H. L.. - : arXiv, 2016 BASE Show details 11 Multivariate cepstral feature compensation on band-limited data for robust speech recognition Morales Mombiela, Nicolás; Toledano, Doroteo T.; Hansen, John H. L.. - : University of Tartu, 2015 BASE Show details 12 Evaluation and analysis of whispered speech for cochlear implant users: Gender identification and intelligibility Hazrati, Oldooz; Ali, Hussnain; Hansen, John H. L.. - : Acoustical Society of America, 2015 BASE Show details 13 Environment mismatch compensation using average eigenspace-based methods for robust speech recognition Hansen, John H. L.; Kumar, Abhishek; Angkititrakul, Pongtep In: International journal of speech technology. - Boston, Mass. [u.a.] : Kluwer Acad. Publ. 17 (2014) 4, 353-364 OLC Linguistik Show details 14 Car noise verification and applications Krishnamurthy, Nitish; Hansen, John H. L. In: International journal of speech technology. - Boston, Mass. [u.a.] : Kluwer Acad. Publ. 17 (2014) 2, 167-181 OLC Linguistik Show details 15 Effective background data selection for SVM-based speaker recognition with unseen test environments: more is not always better Hansen, John H. L.; Suh, Jun-Won; Angkititrakul, Pongtep... In: International journal of speech technology. - Boston, Mass. [u.a.] : Kluwer Acad. Publ. 17 (2014) 3, 211-221 OLC Linguistik Show details 16 Evaluation of the importance of time-frequency contributions to speech intelligibility in noise Yu, Chengzhu; Wójcicki, Kamil K.; Loizou, Philipos C.. - : Acoustical Society of America, 2014 BASE Show details 17 Environment dependent noise tracking for speech enhancement Krishnamurthy, Nitish; Hansen, John H. L. In: International journal of speech technology. - Boston, Mass. [u.a.] : Kluwer Acad. Publ. 16 (2013) 3, 303-312 OLC Linguistik Show details 18 TEO-based speaker stress assessment using hybrid classification and tracking schemes Hansen, John H. L.; Meyerhoff, James; Ruzanski, Evan... In: International journal of speech technology. - Boston, Mass. [u.a.] : Kluwer Acad. Publ. 15 (2012) 3, 295-311 BLLDB OLC Linguistik Show details 19 Automatic analysis of Mandarin accented English using phonological features Sangwan, Abhijeet; Hansen, John H. L. In: Speech communication. - Amsterdam [u.a.] : Elsevier 54 (2012) 1, 40-54 BLLDB OLC Linguistik Show details 20 A study on universal background model training in speaker verification Hansen, John H. L.; Hasan, Taufiq In: Institute of Electrical and Electronics Engineers. IEEE transactions on audio, speech and language processing. - New York, NY : Inst. 19 (2011) 7, 1890-1899 BLLDB OLC Linguistik Show details Page: 1 2 3

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