[{"date_updated":"2022-01-06T06:51:12Z","oa":"1","author":[{"first_name":"Dang Hai","full_name":"Tran Vu, Dang Hai","last_name":"Tran Vu"},{"last_name":"Haeb-Umbach","id":"242","full_name":"Haeb-Umbach, Reinhold","first_name":"Reinhold"}],"date_created":"2019-07-12T05:30:40Z","title":"Blind speech separation employing directional statistics in an Expectation Maximization framework","main_file_link":[{"url":"https://groups.uni-paderborn.de/nt/pubs/2010/DaHa10-2.pdf","open_access":"1"}],"doi":"10.1109/ICASSP.2010.5495994","year":"2010","citation":{"apa":"Tran Vu, D. H., &#38; Haeb-Umbach, R. (2010). Blind speech separation employing directional statistics in an Expectation Maximization framework. In <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2010)</i> (pp. 241–244). <a href=\"https://doi.org/10.1109/ICASSP.2010.5495994\">https://doi.org/10.1109/ICASSP.2010.5495994</a>","bibtex":"@inproceedings{Tran Vu_Haeb-Umbach_2010, title={Blind speech separation employing directional statistics in an Expectation Maximization framework}, DOI={<a href=\"https://doi.org/10.1109/ICASSP.2010.5495994\">10.1109/ICASSP.2010.5495994</a>}, booktitle={IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2010)}, author={Tran Vu, Dang Hai and Haeb-Umbach, Reinhold}, year={2010}, pages={241–244} }","short":"D.H. Tran Vu, R. Haeb-Umbach, in: IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2010), 2010, pp. 241–244.","mla":"Tran Vu, Dang Hai, and Reinhold Haeb-Umbach. “Blind Speech Separation Employing Directional Statistics in an Expectation Maximization Framework.” <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2010)</i>, 2010, pp. 241–44, doi:<a href=\"https://doi.org/10.1109/ICASSP.2010.5495994\">10.1109/ICASSP.2010.5495994</a>.","ieee":"D. H. Tran Vu and R. Haeb-Umbach, “Blind speech separation employing directional statistics in an Expectation Maximization framework,” in <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2010)</i>, 2010, pp. 241–244.","chicago":"Tran Vu, Dang Hai, and Reinhold Haeb-Umbach. “Blind Speech Separation Employing Directional Statistics in an Expectation Maximization Framework.” In <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2010)</i>, 241–44, 2010. <a href=\"https://doi.org/10.1109/ICASSP.2010.5495994\">https://doi.org/10.1109/ICASSP.2010.5495994</a>.","ama":"Tran Vu DH, Haeb-Umbach R. Blind speech separation employing directional statistics in an Expectation Maximization framework. In: <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2010)</i>. ; 2010:241-244. doi:<a href=\"https://doi.org/10.1109/ICASSP.2010.5495994\">10.1109/ICASSP.2010.5495994</a>"},"page":"241-244","_id":"11913","user_id":"44006","department":[{"_id":"54"}],"keyword":["array signal processing","blind source separation","blind speech separation","complex vector space","complex Watson distribution","directional statistics","expectation-maximisation algorithm","expectation maximization algorithm","Fourier transform","Fourier transforms","generalized sidelobe canceller","interference suppression","maximum signal-to-noise ratio beamformer","microphone signal","probabilistic model","spatial aliasing","spatial beamforming configuration","speech enhancement","statistical distributions"],"language":[{"iso":"eng"}],"type":"conference","publication":"IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2010)","abstract":[{"lang":"eng","text":"In this paper we propose to employ directional statistics in a complex vector space to approach the problem of blind speech separation in the presence of spatially correlated noise. We interpret the values of the short time Fourier transform of the microphone signals to be draws from a mixture of complex Watson distributions, a probabilistic model which naturally accounts for spatial aliasing. The parameters of the density are related to the a priori source probabilities, the power of the sources and the transfer function ratios from sources to sensors. Estimation formulas are derived for these parameters by employing the Expectation Maximization (EM) algorithm. The E-step corresponds to the estimation of the source presence probabilities for each time-frequency bin, while the M-step leads to a maximum signal-to-noise ratio (MaxSNR) beamformer in the presence of uncertainty about the source activity. Experimental results are reported for an implementation in a generalized sidelobe canceller (GSC) like spatial beamforming configuration for 3 speech sources with significant coherent noise in reverberant environments, demonstrating the usefulness of the novel modeling framework."}],"status":"public"},{"citation":{"ama":"Vollmer A-L, Pitsch K, Lohan KS, Fritsch J, Rohlfing K, Wrede B. Developing feedback: How children of different age contribute to a tutoring interaction with adults. In: <i>Development and Learning (ICDL), 2010 IEEE 9th International Conference on Development and Learning</i>. ; 2010:76-81.","ieee":"A.-L. Vollmer, K. Pitsch, K. S. Lohan, J. Fritsch, K. Rohlfing, and B. Wrede, “Developing feedback: How children of different age contribute to a tutoring interaction with adults,” in <i>Development and Learning (ICDL), 2010 IEEE 9th International Conference on Development and Learning</i>, 2010, pp. 76–81.","chicago":"Vollmer, Anna-Lisa, Karola Pitsch, Katrin Solveig Lohan, Jannik Fritsch, Katharina Rohlfing, and Britta Wrede. “Developing Feedback: How Children of Different Age Contribute to a Tutoring Interaction with Adults.” In <i>Development and Learning (ICDL), 2010 IEEE 9th International Conference on Development and Learning</i>, 76–81, 2010.","short":"A.-L. Vollmer, K. Pitsch, K.S. Lohan, J. Fritsch, K. Rohlfing, B. Wrede, in: Development and Learning (ICDL), 2010 IEEE 9th International Conference on Development and Learning, 2010, pp. 76–81.","bibtex":"@inproceedings{Vollmer_Pitsch_Lohan_Fritsch_Rohlfing_Wrede_2010, title={Developing feedback: How children of different age contribute to a tutoring interaction with adults}, booktitle={Development and Learning (ICDL), 2010 IEEE 9th International Conference on Development and Learning}, author={Vollmer, Anna-Lisa and Pitsch, Karola and Lohan, Katrin Solveig and Fritsch, Jannik and Rohlfing, Katharina and Wrede, Britta}, year={2010}, pages={76–81} }","mla":"Vollmer, Anna-Lisa, et al. “Developing Feedback: How Children of Different Age Contribute to a Tutoring Interaction with Adults.” <i>Development and Learning (ICDL), 2010 IEEE 9th International Conference on Development and Learning</i>, 2010, pp. 76–81.","apa":"Vollmer, A.-L., Pitsch, K., Lohan, K. S., Fritsch, J., Rohlfing, K., &#38; Wrede, B. (2010). Developing feedback: How children of different age contribute to a tutoring interaction with adults. <i>Development and Learning (ICDL), 2010 IEEE 9th International Conference on Development and Learning</i>, 76–81."},"page":"76-81","year":"2010","date_created":"2020-06-24T13:02:20Z","author":[{"first_name":"Anna-Lisa","last_name":"Vollmer","full_name":"Vollmer, Anna-Lisa"},{"first_name":"Karola","last_name":"Pitsch","full_name":"Pitsch, Karola"},{"last_name":"Lohan","full_name":"Lohan, Katrin Solveig","first_name":"Katrin Solveig"},{"last_name":"Fritsch","full_name":"Fritsch, Jannik","first_name":"Jannik"},{"first_name":"Katharina","last_name":"Rohlfing","full_name":"Rohlfing, Katharina","id":"50352"},{"full_name":"Wrede, Britta","last_name":"Wrede","first_name":"Britta"}],"date_updated":"2023-02-01T13:00:15Z","title":"Developing feedback: How children of different age contribute to a tutoring interaction with adults","type":"conference","publication":"Development and Learning (ICDL), 2010 IEEE 9th International Conference on Development and Learning","status":"public","user_id":"14931","department":[{"_id":"749"}],"_id":"17253","language":[{"iso":"eng"}],"keyword":["tutoring interaction","social interaction","video signal processing","robot systems","paediatrics","neurophysiology","Learning","infant","feedback","biology computing","cognitive capabilities","cognition","children"]},{"title":"Speech enhancement with a new generalized eigenvector blocking matrix for application in a generalized sidelobe canceller","main_file_link":[{"url":"https://groups.uni-paderborn.de/nt/pubs/2008/WaKrHa08.pdf","open_access":"1"}],"doi":"10.1109/ICASSP.2008.4517549","oa":"1","date_updated":"2022-01-06T06:51:12Z","author":[{"last_name":"Warsitz","full_name":"Warsitz, Ernst","first_name":"Ernst"},{"first_name":"Alexander","full_name":"Krueger, Alexander","last_name":"Krueger"},{"first_name":"Reinhold","full_name":"Haeb-Umbach, Reinhold","id":"242","last_name":"Haeb-Umbach"}],"date_created":"2019-07-12T05:31:06Z","year":"2008","citation":{"mla":"Warsitz, Ernst, et al. “Speech Enhancement with a New Generalized Eigenvector Blocking Matrix for Application in a Generalized Sidelobe Canceller.” <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008)</i>, 2008, pp. 73–76, doi:<a href=\"https://doi.org/10.1109/ICASSP.2008.4517549\">10.1109/ICASSP.2008.4517549</a>.","bibtex":"@inproceedings{Warsitz_Krueger_Haeb-Umbach_2008, title={Speech enhancement with a new generalized eigenvector blocking matrix for application in a generalized sidelobe canceller}, DOI={<a href=\"https://doi.org/10.1109/ICASSP.2008.4517549\">10.1109/ICASSP.2008.4517549</a>}, booktitle={IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008)}, author={Warsitz, Ernst and Krueger, Alexander and Haeb-Umbach, Reinhold}, year={2008}, pages={73–76} }","short":"E. Warsitz, A. Krueger, R. Haeb-Umbach, in: IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008), 2008, pp. 73–76.","apa":"Warsitz, E., Krueger, A., &#38; Haeb-Umbach, R. (2008). Speech enhancement with a new generalized eigenvector blocking matrix for application in a generalized sidelobe canceller. In <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008)</i> (pp. 73–76). <a href=\"https://doi.org/10.1109/ICASSP.2008.4517549\">https://doi.org/10.1109/ICASSP.2008.4517549</a>","ama":"Warsitz E, Krueger A, Haeb-Umbach R. Speech enhancement with a new generalized eigenvector blocking matrix for application in a generalized sidelobe canceller. In: <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008)</i>. ; 2008:73-76. doi:<a href=\"https://doi.org/10.1109/ICASSP.2008.4517549\">10.1109/ICASSP.2008.4517549</a>","ieee":"E. Warsitz, A. Krueger, and R. Haeb-Umbach, “Speech enhancement with a new generalized eigenvector blocking matrix for application in a generalized sidelobe canceller,” in <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008)</i>, 2008, pp. 73–76.","chicago":"Warsitz, Ernst, Alexander Krueger, and Reinhold Haeb-Umbach. “Speech Enhancement with a New Generalized Eigenvector Blocking Matrix for Application in a Generalized Sidelobe Canceller.” In <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008)</i>, 73–76, 2008. <a href=\"https://doi.org/10.1109/ICASSP.2008.4517549\">https://doi.org/10.1109/ICASSP.2008.4517549</a>."},"page":"73-76","keyword":["adaptive interference canceller","adaptive signal processing","array signal processing","beamforming method","eigenvalues and eigenfunctions","generalized eigenvector blocking matrix","generalized sidelobe canceller","interference suppression","matrix algebra","noise suppression","speech enhancement","transfer function estimation","transfer functions"],"language":[{"iso":"eng"}],"_id":"11935","user_id":"44006","department":[{"_id":"54"}],"abstract":[{"text":"The generalized sidelobe canceller by Griffith and Jim is a robust beamforming method to enhance a desired (speech) signal in the presence of stationary noise. Its performance depends to a high degree on the construction of the blocking matrix which produces noise reference signals for the subsequent adaptive interference canceller. Especially in reverberated environments the beamformer may suffer from signal leakage and reduced noise suppression. In this paper a new blocking matrix is proposed. It is based on a generalized eigenvalue problem whose solution provides an indirect estimation of the transfer functions from the source to the sensors. The quality of the new generalized eigenvector blocking matrix is studied in simulated rooms with different reverberation times and is compared to alternatives proposed in the literature.","lang":"eng"}],"status":"public","type":"conference","publication":"IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008)"},{"status":"public","abstract":[{"text":"This paper investigates the influence of feedback provided by an autonomous robot (BIRON) on users’ discursive behavior. A user study is described during which users show objects to the robot. The results of the experiment indicate, that the robot’s verbal feedback utterances cause the humans to adapt their own way of speaking. The changes in users’ verbal behavior are due to their beliefs about the robots knowledge and abilities. In this paper they are identified and grouped. Moreover, the data implies variations in user behavior regarding gestures. Unlike speech, the robot was not able to give feedback with gestures. Due to the lack of feedback, users did not seem to have a consistent mental representation of the robot’s abilities to recognize gestures. As a result, changes between different gestures are interpreted to be unconscious variations accompanying speech.","lang":"eng"}],"type":"conference","language":[{"iso":"eng"}],"keyword":["discursive behavior","autonomous robot","BIRON","man-machine systems","robot abilities","robot knowledge","user gestures","robot verbal feedback utterance","speech processing","user verbal behavior","service robots","human-robot interaction","human computer interaction","gesture recognition"],"user_id":"14931","department":[{"_id":"749"}],"_id":"17278","citation":{"mla":"Lohse, Manja, et al. <i>“Try Something Else!” — When Users Change Their Discursive Behavior in Human-Robot Interaction</i>. 2008, pp. 3481–86, doi:<a href=\"https://doi.org/10.1109/ROBOT.2008.4543743\">10.1109/ROBOT.2008.4543743</a>.","short":"M. Lohse, K. Rohlfing, B. Wrede, G. Sagerer, in: 2008, pp. 3481–3486.","bibtex":"@inproceedings{Lohse_Rohlfing_Wrede_Sagerer_2008, title={“Try something else!” — When users change their discursive behavior in human-robot interaction}, DOI={<a href=\"https://doi.org/10.1109/ROBOT.2008.4543743\">10.1109/ROBOT.2008.4543743</a>}, author={Lohse, Manja and Rohlfing, Katharina and Wrede, Britta and Sagerer, Gerhard}, year={2008}, pages={3481–3486} }","apa":"Lohse, M., Rohlfing, K., Wrede, B., &#38; Sagerer, G. (2008). <i>“Try something else!” — When users change their discursive behavior in human-robot interaction</i>. 3481–3486. <a href=\"https://doi.org/10.1109/ROBOT.2008.4543743\">https://doi.org/10.1109/ROBOT.2008.4543743</a>","ama":"Lohse M, Rohlfing K, Wrede B, Sagerer G. “Try something else!” — When users change their discursive behavior in human-robot interaction. In: ; 2008:3481-3486. doi:<a href=\"https://doi.org/10.1109/ROBOT.2008.4543743\">10.1109/ROBOT.2008.4543743</a>","chicago":"Lohse, Manja, Katharina Rohlfing, Britta Wrede, and Gerhard Sagerer. “‘Try Something Else!’ — When Users Change Their Discursive Behavior in Human-Robot Interaction,” 3481–86, 2008. <a href=\"https://doi.org/10.1109/ROBOT.2008.4543743\">https://doi.org/10.1109/ROBOT.2008.4543743</a>.","ieee":"M. Lohse, K. Rohlfing, B. Wrede, and G. Sagerer, “‘Try something else!’ — When users change their discursive behavior in human-robot interaction,” 2008, pp. 3481–3486, doi: <a href=\"https://doi.org/10.1109/ROBOT.2008.4543743\">10.1109/ROBOT.2008.4543743</a>."},"page":"3481-3486","year":"2008","publication_identifier":{"isbn":["1050-4729"]},"doi":"10.1109/ROBOT.2008.4543743","title":"“Try something else!” — When users change their discursive behavior in human-robot interaction","date_created":"2020-06-24T13:02:49Z","author":[{"first_name":"Manja","last_name":"Lohse","full_name":"Lohse, Manja"},{"full_name":"Rohlfing, Katharina","id":"50352","last_name":"Rohlfing","first_name":"Katharina"},{"first_name":"Britta","last_name":"Wrede","full_name":"Wrede, Britta"},{"first_name":"Gerhard","last_name":"Sagerer","full_name":"Sagerer, Gerhard"}],"date_updated":"2023-02-01T13:08:20Z"},{"title":"Blind Acoustic Beamforming Based on Generalized Eigenvalue Decomposition","date_created":"2019-07-12T05:30:57Z","year":"2007","issue":"5","keyword":["acoustic signal processing","arbitrary transfer function","array signal processing","blind acoustic beamforming","direction-of-arrival","direction-of-arrival estimation","eigenvalues and eigenfunctions","generalized eigenvalue decomposition","gradient ascent adaptation algorithm","microphone arrays","microphones","narrowband array beamforming","sensor array","single-channel post-filter","spatially colored noise","transfer functions"],"language":[{"iso":"eng"}],"abstract":[{"text":"Maximizing the output signal-to-noise ratio (SNR) of a sensor array in the presence of spatially colored noise leads to a generalized eigenvalue problem. While this approach has extensively been employed in narrowband (antenna) array beamforming, it is typically not used for broadband (microphone) array beamforming due to the uncontrolled amount of speech distortion introduced by a narrowband SNR criterion. In this paper, we show how the distortion of the desired signal can be controlled by a single-channel post-filter, resulting in a performance comparable to the generalized minimum variance distortionless response beamformer, where arbitrary transfer functions relate the source and the microphones. Results are given both for directional and diffuse noise. A novel gradient ascent adaptation algorithm is presented, and its good convergence properties are experimentally revealed by comparison with alternatives from the literature. A key feature of the proposed beamformer is that it operates blindly, i.e., it neither requires knowledge about the array geometry nor an explicit estimation of the transfer functions from source to sensors or the direction-of-arrival.","lang":"eng"}],"publication":"IEEE Transactions on Audio, Speech, and Language Processing","doi":"10.1109/TASL.2007.898454","main_file_link":[{"open_access":"1","url":"https://groups.uni-paderborn.de/nt/pubs/2007/WaHa07.pdf"}],"date_updated":"2022-01-06T06:51:12Z","oa":"1","volume":15,"author":[{"first_name":"Ernst","last_name":"Warsitz","full_name":"Warsitz, Ernst"},{"first_name":"Reinhold","last_name":"Haeb-Umbach","id":"242","full_name":"Haeb-Umbach, Reinhold"}],"intvolume":"        15","page":"1529-1539","citation":{"ama":"Warsitz E, Haeb-Umbach R. Blind Acoustic Beamforming Based on Generalized Eigenvalue Decomposition. <i>IEEE Transactions on Audio, Speech, and Language Processing</i>. 2007;15(5):1529-1539. doi:<a href=\"https://doi.org/10.1109/TASL.2007.898454\">10.1109/TASL.2007.898454</a>","chicago":"Warsitz, Ernst, and Reinhold Haeb-Umbach. “Blind Acoustic Beamforming Based on Generalized Eigenvalue Decomposition.” <i>IEEE Transactions on Audio, Speech, and Language Processing</i> 15, no. 5 (2007): 1529–39. <a href=\"https://doi.org/10.1109/TASL.2007.898454\">https://doi.org/10.1109/TASL.2007.898454</a>.","ieee":"E. Warsitz and R. Haeb-Umbach, “Blind Acoustic Beamforming Based on Generalized Eigenvalue Decomposition,” <i>IEEE Transactions on Audio, Speech, and Language Processing</i>, vol. 15, no. 5, pp. 1529–1539, 2007.","apa":"Warsitz, E., &#38; Haeb-Umbach, R. (2007). Blind Acoustic Beamforming Based on Generalized Eigenvalue Decomposition. <i>IEEE Transactions on Audio, Speech, and Language Processing</i>, <i>15</i>(5), 1529–1539. <a href=\"https://doi.org/10.1109/TASL.2007.898454\">https://doi.org/10.1109/TASL.2007.898454</a>","bibtex":"@article{Warsitz_Haeb-Umbach_2007, title={Blind Acoustic Beamforming Based on Generalized Eigenvalue Decomposition}, volume={15}, DOI={<a href=\"https://doi.org/10.1109/TASL.2007.898454\">10.1109/TASL.2007.898454</a>}, number={5}, journal={IEEE Transactions on Audio, Speech, and Language Processing}, author={Warsitz, Ernst and Haeb-Umbach, Reinhold}, year={2007}, pages={1529–1539} }","mla":"Warsitz, Ernst, and Reinhold Haeb-Umbach. “Blind Acoustic Beamforming Based on Generalized Eigenvalue Decomposition.” <i>IEEE Transactions on Audio, Speech, and Language Processing</i>, vol. 15, no. 5, 2007, pp. 1529–39, doi:<a href=\"https://doi.org/10.1109/TASL.2007.898454\">10.1109/TASL.2007.898454</a>.","short":"E. Warsitz, R. Haeb-Umbach, IEEE Transactions on Audio, Speech, and Language Processing 15 (2007) 1529–1539."},"_id":"11927","department":[{"_id":"54"}],"user_id":"44006","status":"public","type":"journal_article"},{"author":[{"first_name":"Ingrid","orcid":"0000-0003-2364-9489","last_name":"Scharlau","id":"451","full_name":"Scharlau, Ingrid"},{"first_name":"Ulrich","full_name":"Ansorge, Ulrich","last_name":"Ansorge"},{"full_name":"Horstmann, Gernot","last_name":"Horstmann","first_name":"Gernot"}],"date_created":"2018-12-10T07:04:39Z","volume":122,"date_updated":"2022-06-07T00:24:32Z","oa":"1","main_file_link":[{"url":"https://kw.uni-paderborn.de/fileadmin/fakultaet/Institute/psychologie/Kognitive_Psychologie/Publikationen/ScharlauAnsorgeHorstmann2006TimeCourse.pdf","open_access":"1"}],"title":"Latency facilitation in temporal-order judgments: Time course of facilitation as a function of judgment type.","issue":"2","publication_status":"published","publication_identifier":{"issn":["0001-6918"]},"citation":{"apa":"Scharlau, I., Ansorge, U., &#38; Horstmann, G. (2006). Latency facilitation in temporal-order judgments: Time course of facilitation as a function of judgment type. <i>Acta Psychologica</i>, <i>122</i>(2), 129–159.","short":"I. Scharlau, U. Ansorge, G. Horstmann, Acta Psychologica 122 (2006) 129–159.","bibtex":"@article{Scharlau_Ansorge_Horstmann_2006, title={Latency facilitation in temporal-order judgments: Time course of facilitation as a function of judgment type.}, volume={122}, number={2}, journal={Acta Psychologica}, author={Scharlau, Ingrid and Ansorge, Ulrich and Horstmann, Gernot}, year={2006}, pages={129–159} }","mla":"Scharlau, Ingrid, et al. “Latency Facilitation in Temporal-Order Judgments: Time Course of Facilitation as a Function of Judgment Type.” <i>Acta Psychologica</i>, vol. 122, no. 2, 2006, pp. 129–59.","ieee":"I. Scharlau, U. Ansorge, and G. Horstmann, “Latency facilitation in temporal-order judgments: Time course of facilitation as a function of judgment type.,” <i>Acta Psychologica</i>, vol. 122, no. 2, pp. 129–159, 2006.","chicago":"Scharlau, Ingrid, Ulrich Ansorge, and Gernot Horstmann. “Latency Facilitation in Temporal-Order Judgments: Time Course of Facilitation as a Function of Judgment Type.” <i>Acta Psychologica</i> 122, no. 2 (2006): 129–59.","ama":"Scharlau I, Ansorge U, Horstmann G. Latency facilitation in temporal-order judgments: Time course of facilitation as a function of judgment type. <i>Acta Psychologica</i>. 2006;122(2):129-159."},"intvolume":"       122","page":"129 - 159","year":"2006","user_id":"42165","department":[{"_id":"424"}],"_id":"6073","language":[{"iso":"eng"}],"extern":"1","keyword":["latency facilitation","temporal order judgments","visual processing","priming","conscious perception","visual mask","Adult","Attention","Female","Humans","Judgment","Male","Perceptual Masking","Reaction Time","Space Perception","Time Perception","Visual Perception","Consciousness States","Judgment","Priming","Visual Masking","Temporal Order (Judgment)"],"type":"journal_article","publication":"Acta Psychologica","status":"public","abstract":[{"lang":"eng","text":"The paper is concerned with two models of early visual processing which predict that priming of a visual mask by a preceding masked stimulus speeds up conscious perception of the mask (perceptual latency priming). One model ascribes this speed-up to facilitation by visuo-spatial attention [Scharlau, I., & Neumann, O. (2003a). Perceptual latency priming by masked and unmasked stimuli: Evidence for an attentional explanation. Psychological Research 67, 184-197], the other attributes it to nonspecific upgrading mediated by retino-thalamic and thalamo-cortical pathways [Bachmann, T. (1994). Psychophysiology of visual masking: The fine structure of conscious experience. Commack, NY: Nova Science Publishers]. The models make different predictions about the time course of perceptual latency priming. Four experiments test these predictions. The results provide more support for the attentional than for the upgrading model. The experiments further demonstrate that testing latency facilitation w"}]},{"language":[{"iso":"eng"}],"keyword":["acoustic filter-and-sum beamforming","acoustic room impulses","acoustic signal processing","adaptive principal component analysis","adaptive signal processing","architectural acoustics","constrained optimization problem","cross power spectral density","deterministic algorithm","deterministic algorithms","distant-talking environments","eigenvalues and eigenfunctions","eigenvector","enhanced signal","filter-and-sum beamformer","FIR filter coefficients","FIR filter coefficients","FIR filters","gradient methods","human-machine interfaces","iterative estimation","iterative methods","largest eigenvalue","microphone signals","multichannel signal processing","optimisation","principal component analysis","spectral analysis","stochastic gradient ascent algorithm","stochastic processes"],"department":[{"_id":"54"}],"user_id":"44006","_id":"11930","status":"public","abstract":[{"lang":"eng","text":"For human-machine interfaces in distant-talking environments multichannel signal processing is often employed to obtain an enhanced signal for subsequent processing. In this paper we propose a novel adaptation algorithm for a filter-and-sum beamformer to adjust the coefficients of FIR filters to changing acoustic room impulses, e.g. due to speaker movement. A deterministic and a stochastic gradient ascent algorithm are derived from a constrained optimization problem, which iteratively estimates the eigenvector corresponding to the largest eigenvalue of the cross power spectral density of the microphone signals. The method does not require an explicit estimation of the speaker location. The experimental results show fast adaptation and excellent robustness of the proposed algorithm."}],"publication":"IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2005)","type":"conference","doi":"10.1109/ICASSP.2005.1416129","main_file_link":[{"url":"https://groups.uni-paderborn.de/nt/pubs/2005/WaHa05.pdf","open_access":"1"}],"title":"Acoustic filter-and-sum beamforming by adaptive principal component analysis","volume":4,"date_created":"2019-07-12T05:31:00Z","author":[{"last_name":"Warsitz","full_name":"Warsitz, Ernst","first_name":"Ernst"},{"last_name":"Haeb-Umbach","full_name":"Haeb-Umbach, Reinhold","id":"242","first_name":"Reinhold"}],"oa":"1","date_updated":"2022-01-06T06:51:12Z","page":"iv/797-iv/800 Vol. 4","intvolume":"         4","citation":{"ama":"Warsitz E, Haeb-Umbach R. Acoustic filter-and-sum beamforming by adaptive principal component analysis. In: <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2005)</i>. Vol 4. ; 2005:iv/797-iv/800 Vol. 4. doi:<a href=\"https://doi.org/10.1109/ICASSP.2005.1416129\">10.1109/ICASSP.2005.1416129</a>","ieee":"E. Warsitz and R. Haeb-Umbach, “Acoustic filter-and-sum beamforming by adaptive principal component analysis,” in <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2005)</i>, 2005, vol. 4, p. iv/797-iv/800 Vol. 4.","chicago":"Warsitz, Ernst, and Reinhold Haeb-Umbach. “Acoustic Filter-and-Sum Beamforming by Adaptive Principal Component Analysis.” In <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2005)</i>, 4:iv/797-iv/800 Vol. 4, 2005. <a href=\"https://doi.org/10.1109/ICASSP.2005.1416129\">https://doi.org/10.1109/ICASSP.2005.1416129</a>.","apa":"Warsitz, E., &#38; Haeb-Umbach, R. (2005). Acoustic filter-and-sum beamforming by adaptive principal component analysis. In <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2005)</i> (Vol. 4, p. iv/797-iv/800 Vol. 4). <a href=\"https://doi.org/10.1109/ICASSP.2005.1416129\">https://doi.org/10.1109/ICASSP.2005.1416129</a>","bibtex":"@inproceedings{Warsitz_Haeb-Umbach_2005, title={Acoustic filter-and-sum beamforming by adaptive principal component analysis}, volume={4}, DOI={<a href=\"https://doi.org/10.1109/ICASSP.2005.1416129\">10.1109/ICASSP.2005.1416129</a>}, booktitle={IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2005)}, author={Warsitz, Ernst and Haeb-Umbach, Reinhold}, year={2005}, pages={iv/797-iv/800 Vol. 4} }","short":"E. Warsitz, R. Haeb-Umbach, in: IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2005), 2005, p. iv/797-iv/800 Vol. 4.","mla":"Warsitz, Ernst, and Reinhold Haeb-Umbach. “Acoustic Filter-and-Sum Beamforming by Adaptive Principal Component Analysis.” <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2005)</i>, vol. 4, 2005, p. iv/797-iv/800 Vol. 4, doi:<a href=\"https://doi.org/10.1109/ICASSP.2005.1416129\">10.1109/ICASSP.2005.1416129</a>."},"year":"2005"},{"citation":{"apa":"Warsitz, E., &#38; Haeb-Umbach, R. (2004). Robust speaker direction estimation with particle filtering. In <i>IEEE Workshop on Multimedia Signal Processing (MMSP 2004)</i> (pp. 367–370). <a href=\"https://doi.org/10.1109/MMSP.2004.1436569\">https://doi.org/10.1109/MMSP.2004.1436569</a>","bibtex":"@inproceedings{Warsitz_Haeb-Umbach_2004, title={Robust speaker direction estimation with particle filtering}, DOI={<a href=\"https://doi.org/10.1109/MMSP.2004.1436569\">10.1109/MMSP.2004.1436569</a>}, booktitle={IEEE Workshop on Multimedia Signal Processing (MMSP 2004)}, author={Warsitz, Ernst and Haeb-Umbach, Reinhold}, year={2004}, pages={367–370} }","mla":"Warsitz, Ernst, and Reinhold Haeb-Umbach. “Robust Speaker Direction Estimation with Particle Filtering.” <i>IEEE Workshop on Multimedia Signal Processing (MMSP 2004)</i>, 2004, pp. 367–70, doi:<a href=\"https://doi.org/10.1109/MMSP.2004.1436569\">10.1109/MMSP.2004.1436569</a>.","short":"E. Warsitz, R. Haeb-Umbach, in: IEEE Workshop on Multimedia Signal Processing (MMSP 2004), 2004, pp. 367–370.","ieee":"E. Warsitz and R. Haeb-Umbach, “Robust speaker direction estimation with particle filtering,” in <i>IEEE Workshop on Multimedia Signal Processing (MMSP 2004)</i>, 2004, pp. 367–370.","chicago":"Warsitz, Ernst, and Reinhold Haeb-Umbach. “Robust Speaker Direction Estimation with Particle Filtering.” In <i>IEEE Workshop on Multimedia Signal Processing (MMSP 2004)</i>, 367–70, 2004. <a href=\"https://doi.org/10.1109/MMSP.2004.1436569\">https://doi.org/10.1109/MMSP.2004.1436569</a>.","ama":"Warsitz E, Haeb-Umbach R. Robust speaker direction estimation with particle filtering. In: <i>IEEE Workshop on Multimedia Signal Processing (MMSP 2004)</i>. ; 2004:367-370. doi:<a href=\"https://doi.org/10.1109/MMSP.2004.1436569\">10.1109/MMSP.2004.1436569</a>"},"page":"367-370","year":"2004","main_file_link":[{"url":"https://groups.uni-paderborn.de/nt/pubs/2004/WaHa04.pdf","open_access":"1"}],"doi":"10.1109/MMSP.2004.1436569","title":"Robust speaker direction estimation with particle filtering","date_created":"2019-07-12T05:31:01Z","author":[{"first_name":"Ernst","last_name":"Warsitz","full_name":"Warsitz, Ernst"},{"last_name":"Haeb-Umbach","id":"242","full_name":"Haeb-Umbach, Reinhold","first_name":"Reinhold"}],"oa":"1","date_updated":"2022-01-06T06:51:12Z","status":"public","abstract":[{"lang":"eng","text":"The paper is concerned with binaural signal processing for a bimodal human-robot interface with hearing and vision. The two microphone signals are processed to obtain an enhanced single-channel input signal for the subsequent speech recognizer and to localize the acoustic source, an important information for establishing a natural human-robot communication. We utilize a robust adaptive algorithm for filter-and-sum beamforming (FSB) and extract speaker direction information from the resulting FIR filter coefficients. Further, particle filtering is applied which conducts a nonlinear Bayesian tracking of speaker movement. Good location accuracy can be achieved even in highly reverberant environments. The results obtained outperform the conventional generalized cross correlation (GCC) method."}],"type":"conference","publication":"IEEE Workshop on Multimedia Signal Processing (MMSP 2004)","language":[{"iso":"eng"}],"keyword":["bimodal human-robot interface","binaural signal processing","enhanced single-channel input signal","filter-and-sum beamforming","filtering theory","FIR filter coefficient","generalized cross correlation method","microphones","microphone signal","nonlinear Bayesian tracking","particle filtering","robust adaptive algorithm","robust speaker direction estimation","signal processing","speech enhancement","speech recognition","speech recognizer","user interfaces"],"user_id":"44006","department":[{"_id":"54"}],"_id":"11931"},{"date_updated":"2022-06-06T20:13:20Z","volume":11,"author":[{"first_name":"Ulrich","full_name":"Ansorge, Ulrich","last_name":"Ansorge"},{"first_name":"Manfred","last_name":"Heumann","full_name":"Heumann, Manfred"},{"id":"451","full_name":"Scharlau, Ingrid","last_name":"Scharlau","orcid":"0000-0003-2364-9489","first_name":"Ingrid"}],"publication_identifier":{"issn":["1053-8100"]},"publication_status":"published","intvolume":"        11","page":"528 - 545","citation":{"ieee":"U. Ansorge, M. Heumann, and I. Scharlau, “Influences of visibility, intentions, and probability in a peripheral cuing task.,” <i>Consciousness and Cognition: An International Journal</i>, vol. 11, no. 4, pp. 528–545, 2002.","chicago":"Ansorge, Ulrich, Manfred Heumann, and Ingrid Scharlau. “Influences of Visibility, Intentions, and Probability in a Peripheral Cuing Task.” <i>Consciousness and Cognition: An International Journal</i> 11, no. 4 (2002): 528–45.","ama":"Ansorge U, Heumann M, Scharlau I. Influences of visibility, intentions, and probability in a peripheral cuing task. <i>Consciousness and Cognition: An International Journal</i>. 2002;11(4):528-545.","mla":"Ansorge, Ulrich, et al. “Influences of Visibility, Intentions, and Probability in a Peripheral Cuing Task.” <i>Consciousness and Cognition: An International Journal</i>, vol. 11, no. 4, 2002, pp. 528–45.","short":"U. Ansorge, M. Heumann, I. Scharlau, Consciousness and Cognition: An International Journal 11 (2002) 528–545.","bibtex":"@article{Ansorge_Heumann_Scharlau_2002, title={Influences of visibility, intentions, and probability in a peripheral cuing task.}, volume={11}, number={4}, journal={Consciousness and Cognition: An International Journal}, author={Ansorge, Ulrich and Heumann, Manfred and Scharlau, Ingrid}, year={2002}, pages={528–545} }","apa":"Ansorge, U., Heumann, M., &#38; Scharlau, I. (2002). Influences of visibility, intentions, and probability in a peripheral cuing task. <i>Consciousness and Cognition: An International Journal</i>, <i>11</i>(4), 528–545."},"_id":"6072","department":[{"_id":"424"}],"user_id":"42165","extern":"1","type":"journal_article","status":"public","date_created":"2018-12-10T07:04:28Z","title":"Influences of visibility, intentions, and probability in a peripheral cuing task.","issue":"4","year":"2002","keyword":["active intentions","cues","direct parameter specification","nonconscious processing ability","Adult","Consciousness","Female","Humans","Male","Mental Processes","Perceptual Masking","Photic Stimulation","Visual Perception","Awareness","Cognitive Processes","Cues","Intention","Consciousness States","Probability"],"language":[{"iso":"eng"}],"publication":"Consciousness and Cognition: An International Journal","abstract":[{"lang":"eng","text":"According to the concept of direct parameter specification, nonconsciously registered information can be processed to the extent that it matches currently active intentions of a person. This prediction was tested and confirmed in the current study. Masked visual information provided by peripheral cues led to reaction time (RT) effects only if the information specified one of the required responses (Experiments 1 and 3). Information delivered by the same masked cues that did not match the intentions was not used. However, the same information influenced RT if it was provided by visible cues (Experiments 2 and 3). The results suggest that the processing of nonconsciously registered information is flexible because it is susceptible to the changing intentions of a person. Yet, these processes are apparently restricted as nonconsciously registered information cannot be used as easily for purposes not corresponding to the currently active intentions as better visible information. (PsycINFO "}]},{"status":"public","type":"mastersthesis","keyword":["co-design","speech processing"],"user_id":"24135","department":[{"_id":"518"}],"_id":"2433","citation":{"ama":"Plessl C, Maurer S. <i>Hardware/Software Codesign in Speech Compression Applications</i>. Computer Engineering and Networks Lab, ETH Zurich, Switzerland; 2000.","ieee":"C. Plessl and S. Maurer, <i>Hardware/Software Codesign in Speech Compression Applications</i>. Computer Engineering and Networks Lab, ETH Zurich, Switzerland, 2000.","chicago":"Plessl, Christian, and Simon Maurer. <i>Hardware/Software Codesign in Speech Compression Applications</i>. Computer Engineering and Networks Lab, ETH Zurich, Switzerland, 2000.","apa":"Plessl, C., &#38; Maurer, S. (2000). <i>Hardware/Software Codesign in Speech Compression Applications</i>. Computer Engineering and Networks Lab, ETH Zurich, Switzerland.","bibtex":"@book{Plessl_Maurer_2000, title={Hardware/Software Codesign in Speech Compression Applications}, publisher={Computer Engineering and Networks Lab, ETH Zurich, Switzerland}, author={Plessl, Christian and Maurer, Simon}, year={2000} }","mla":"Plessl, Christian, and Simon Maurer. <i>Hardware/Software Codesign in Speech Compression Applications</i>. Computer Engineering and Networks Lab, ETH Zurich, Switzerland, 2000.","short":"C. Plessl, S. Maurer, Hardware/Software Codesign in Speech Compression Applications, Computer Engineering and Networks Lab, ETH Zurich, Switzerland, 2000."},"year":"2000","title":"Hardware/Software Codesign in Speech Compression Applications","author":[{"last_name":"Plessl","orcid":"0000-0001-5728-9982","full_name":"Plessl, Christian","id":"16153","first_name":"Christian"},{"first_name":"Simon","full_name":"Maurer, Simon","last_name":"Maurer"}],"date_created":"2018-04-17T15:56:00Z","publisher":"Computer Engineering and Networks Lab, ETH Zurich, Switzerland","date_updated":"2022-01-06T06:56:17Z"},{"status":"public","abstract":[{"text":"Though several approaches in sound processing are denoted as 3D audio very few of them generate high quality 3D audio information which allows listeners to exactly locate sound sources in three dimensional space. We present an approach to enhance sound by high quality 3D audio information through acoustic ray tracing where 3D audio is offline processed with digital filters of a head-related transfer function. The basic approach computes a fixed sound source for fixed listener. This approach is extended to generate 3D audio for moving listeners in interactive environments.","lang":"eng"}],"publication":" Proceedings IEEE International Conference on Multimedia Computing and Systems","type":"conference","language":[{"iso":"eng"}],"keyword":["Ray tracing","Loudspeakers","Motion pictures","Acoustic reflection","Ear","Digital filters","Parallel processing","Humans","Physics","Crosstalk"],"department":[{"_id":"672"}],"user_id":"5786","_id":"39477","citation":{"bibtex":"@inproceedings{Müller_Ullmann_1999, place={Florence, Italy}, title={Scalable System for 3D Audio Raytracing}, DOI={<a href=\"https://doi.org/10.1109/MMCS.1999.778592\">10.1109/MMCS.1999.778592</a>}, booktitle={ Proceedings IEEE International Conference on Multimedia Computing and Systems}, author={Müller, Wolfgang and Ullmann, F.}, year={1999} }","short":"W. Müller, F. Ullmann, in:  Proceedings IEEE International Conference on Multimedia Computing and Systems, Florence, Italy, 1999.","mla":"Müller, Wolfgang, and F. Ullmann. “Scalable System for 3D Audio Raytracing.” <i> Proceedings IEEE International Conference on Multimedia Computing and Systems</i>, 1999, doi:<a href=\"https://doi.org/10.1109/MMCS.1999.778592\">10.1109/MMCS.1999.778592</a>.","apa":"Müller, W., &#38; Ullmann, F. (1999). Scalable System for 3D Audio Raytracing. <i> Proceedings IEEE International Conference on Multimedia Computing and Systems</i>. <a href=\"https://doi.org/10.1109/MMCS.1999.778592\">https://doi.org/10.1109/MMCS.1999.778592</a>","ieee":"W. Müller and F. Ullmann, “Scalable System for 3D Audio Raytracing,” 1999, doi: <a href=\"https://doi.org/10.1109/MMCS.1999.778592\">10.1109/MMCS.1999.778592</a>.","chicago":"Müller, Wolfgang, and F. Ullmann. “Scalable System for 3D Audio Raytracing.” In <i> Proceedings IEEE International Conference on Multimedia Computing and Systems</i>. Florence, Italy, 1999. <a href=\"https://doi.org/10.1109/MMCS.1999.778592\">https://doi.org/10.1109/MMCS.1999.778592</a>.","ama":"Müller W, Ullmann F. Scalable System for 3D Audio Raytracing. In: <i> Proceedings IEEE International Conference on Multimedia Computing and Systems</i>. ; 1999. doi:<a href=\"https://doi.org/10.1109/MMCS.1999.778592\">10.1109/MMCS.1999.778592</a>"},"place":"Florence, Italy","year":"1999","publication_identifier":{"isbn":["0-7695-0253-9"]},"doi":"10.1109/MMCS.1999.778592","title":"Scalable System for 3D Audio Raytracing","date_created":"2023-01-24T11:24:14Z","author":[{"first_name":"Wolfgang","last_name":"Müller","full_name":"Müller, Wolfgang","id":"16243"},{"first_name":"F.","full_name":"Ullmann, F.","last_name":"Ullmann"}],"date_updated":"2023-01-24T11:24:18Z"}]