---
_id: '11913'
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.
author:
- first_name: Dang Hai
full_name: Tran Vu, Dang Hai
last_name: Tran Vu
- first_name: Reinhold
full_name: Haeb-Umbach, Reinhold
id: '242'
last_name: Haeb-Umbach
citation:
ama: 'Tran Vu DH, Haeb-Umbach R. Blind speech separation employing directional statistics
in an Expectation Maximization framework. In: IEEE International Conference
on Acoustics, Speech and Signal Processing (ICASSP 2010). ; 2010:241-244.
doi:10.1109/ICASSP.2010.5495994'
apa: Tran Vu, D. H., & Haeb-Umbach, R. (2010). Blind speech separation employing
directional statistics in an Expectation Maximization framework. In IEEE International
Conference on Acoustics, Speech and Signal Processing (ICASSP 2010) (pp. 241–244).
https://doi.org/10.1109/ICASSP.2010.5495994
bibtex: '@inproceedings{Tran Vu_Haeb-Umbach_2010, title={Blind speech separation
employing directional statistics in an Expectation Maximization framework}, DOI={10.1109/ICASSP.2010.5495994},
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} }'
chicago: Tran Vu, Dang Hai, and Reinhold Haeb-Umbach. “Blind Speech Separation Employing
Directional Statistics in an Expectation Maximization Framework.” In IEEE International
Conference on Acoustics, Speech and Signal Processing (ICASSP 2010), 241–44,
2010. https://doi.org/10.1109/ICASSP.2010.5495994.
ieee: D. H. Tran Vu and R. Haeb-Umbach, “Blind speech separation employing directional
statistics in an Expectation Maximization framework,” 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.” IEEE International
Conference on Acoustics, Speech and Signal Processing (ICASSP 2010), 2010,
pp. 241–44, doi:10.1109/ICASSP.2010.5495994.
short: 'D.H. Tran Vu, R. Haeb-Umbach, in: IEEE International Conference on Acoustics,
Speech and Signal Processing (ICASSP 2010), 2010, pp. 241–244.'
date_created: 2019-07-12T05:30:40Z
date_updated: 2022-01-06T06:51:12Z
department:
- _id: '54'
doi: 10.1109/ICASSP.2010.5495994
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
main_file_link:
- open_access: '1'
url: https://groups.uni-paderborn.de/nt/pubs/2010/DaHa10-2.pdf
oa: '1'
page: 241-244
publication: IEEE International Conference on Acoustics, Speech and Signal Processing
(ICASSP 2010)
status: public
title: Blind speech separation employing directional statistics in an Expectation
Maximization framework
type: conference
user_id: '44006'
year: '2010'
...
---
_id: '17253'
author:
- first_name: Anna-Lisa
full_name: Vollmer, Anna-Lisa
last_name: Vollmer
- first_name: Karola
full_name: Pitsch, Karola
last_name: Pitsch
- first_name: Katrin Solveig
full_name: Lohan, Katrin Solveig
last_name: Lohan
- first_name: Jannik
full_name: Fritsch, Jannik
last_name: Fritsch
- first_name: Katharina
full_name: Rohlfing, Katharina
id: '50352'
last_name: Rohlfing
- first_name: Britta
full_name: Wrede, Britta
last_name: Wrede
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: Development and Learning (ICDL), 2010 IEEE 9th International Conference
on Development and Learning. ; 2010:76-81.'
apa: 'Vollmer, A.-L., Pitsch, K., Lohan, K. S., Fritsch, J., Rohlfing, K., &
Wrede, B. (2010). Developing feedback: How children of different age contribute
to a tutoring interaction with adults. Development and Learning (ICDL), 2010
IEEE 9th International Conference on Development and Learning, 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} }'
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 Development and Learning
(ICDL), 2010 IEEE 9th International Conference on Development and Learning,
76–81, 2010.'
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 Development and Learning (ICDL), 2010 IEEE 9th International
Conference on Development and Learning, 2010, pp. 76–81.'
mla: 'Vollmer, Anna-Lisa, et al. “Developing Feedback: How Children of Different
Age Contribute to a Tutoring Interaction with Adults.” Development and Learning
(ICDL), 2010 IEEE 9th International Conference on Development and Learning,
2010, pp. 76–81.'
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.'
date_created: 2020-06-24T13:02:20Z
date_updated: 2023-02-01T13:00:15Z
department:
- _id: '749'
keyword:
- tutoring interaction
- social interaction
- video signal processing
- robot systems
- paediatrics
- neurophysiology
- Learning
- infant
- feedback
- biology computing
- cognitive capabilities
- cognition
- children
language:
- iso: eng
page: 76-81
publication: Development and Learning (ICDL), 2010 IEEE 9th International Conference
on Development and Learning
status: public
title: 'Developing feedback: How children of different age contribute to a tutoring
interaction with adults'
type: conference
user_id: '14931'
year: '2010'
...
---
_id: '11935'
abstract:
- lang: eng
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.
author:
- first_name: Ernst
full_name: Warsitz, Ernst
last_name: Warsitz
- first_name: Alexander
full_name: Krueger, Alexander
last_name: Krueger
- first_name: Reinhold
full_name: Haeb-Umbach, Reinhold
id: '242'
last_name: Haeb-Umbach
citation:
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: IEEE International Conference on Acoustics, Speech and Signal Processing
(ICASSP 2008). ; 2008:73-76. doi:10.1109/ICASSP.2008.4517549'
apa: Warsitz, E., Krueger, A., & Haeb-Umbach, R. (2008). Speech enhancement
with a new generalized eigenvector blocking matrix for application in a generalized
sidelobe canceller. In IEEE International Conference on Acoustics, Speech and
Signal Processing (ICASSP 2008) (pp. 73–76). https://doi.org/10.1109/ICASSP.2008.4517549
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={10.1109/ICASSP.2008.4517549},
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} }'
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 IEEE International Conference on Acoustics, Speech
and Signal Processing (ICASSP 2008), 73–76, 2008. https://doi.org/10.1109/ICASSP.2008.4517549.
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 IEEE International Conference on Acoustics, Speech and Signal
Processing (ICASSP 2008), 2008, pp. 73–76.
mla: Warsitz, Ernst, et al. “Speech Enhancement with a New Generalized Eigenvector
Blocking Matrix for Application in a Generalized Sidelobe Canceller.” IEEE
International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008),
2008, pp. 73–76, doi:10.1109/ICASSP.2008.4517549.
short: 'E. Warsitz, A. Krueger, R. Haeb-Umbach, in: IEEE International Conference
on Acoustics, Speech and Signal Processing (ICASSP 2008), 2008, pp. 73–76.'
date_created: 2019-07-12T05:31:06Z
date_updated: 2022-01-06T06:51:12Z
department:
- _id: '54'
doi: 10.1109/ICASSP.2008.4517549
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
main_file_link:
- open_access: '1'
url: https://groups.uni-paderborn.de/nt/pubs/2008/WaKrHa08.pdf
oa: '1'
page: 73-76
publication: IEEE International Conference on Acoustics, Speech and Signal Processing
(ICASSP 2008)
status: public
title: Speech enhancement with a new generalized eigenvector blocking matrix for application
in a generalized sidelobe canceller
type: conference
user_id: '44006'
year: '2008'
...
---
_id: '17278'
abstract:
- lang: eng
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.
author:
- first_name: Manja
full_name: Lohse, Manja
last_name: Lohse
- first_name: Katharina
full_name: Rohlfing, Katharina
id: '50352'
last_name: Rohlfing
- first_name: Britta
full_name: Wrede, Britta
last_name: Wrede
- first_name: Gerhard
full_name: Sagerer, Gerhard
last_name: Sagerer
citation:
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:10.1109/ROBOT.2008.4543743'
apa: Lohse, M., Rohlfing, K., Wrede, B., & Sagerer, G. (2008). “Try something
else!” — When users change their discursive behavior in human-robot interaction.
3481–3486. https://doi.org/10.1109/ROBOT.2008.4543743
bibtex: '@inproceedings{Lohse_Rohlfing_Wrede_Sagerer_2008, title={“Try something
else!” — When users change their discursive behavior in human-robot interaction},
DOI={10.1109/ROBOT.2008.4543743},
author={Lohse, Manja and Rohlfing, Katharina and Wrede, Britta and Sagerer, Gerhard},
year={2008}, pages={3481–3486} }'
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. https://doi.org/10.1109/ROBOT.2008.4543743.
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: 10.1109/ROBOT.2008.4543743.'
mla: Lohse, Manja, et al. “Try Something Else!” — When Users Change Their Discursive
Behavior in Human-Robot Interaction. 2008, pp. 3481–86, doi:10.1109/ROBOT.2008.4543743.
short: 'M. Lohse, K. Rohlfing, B. Wrede, G. Sagerer, in: 2008, pp. 3481–3486.'
date_created: 2020-06-24T13:02:49Z
date_updated: 2023-02-01T13:08:20Z
department:
- _id: '749'
doi: 10.1109/ROBOT.2008.4543743
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
language:
- iso: eng
page: 3481-3486
publication_identifier:
isbn:
- 1050-4729
status: public
title: “Try something else!” — When users change their discursive behavior in human-robot
interaction
type: conference
user_id: '14931'
year: '2008'
...
---
_id: '11927'
abstract:
- lang: eng
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.
author:
- first_name: Ernst
full_name: Warsitz, Ernst
last_name: Warsitz
- first_name: Reinhold
full_name: Haeb-Umbach, Reinhold
id: '242'
last_name: Haeb-Umbach
citation:
ama: Warsitz E, Haeb-Umbach R. Blind Acoustic Beamforming Based on Generalized Eigenvalue
Decomposition. IEEE Transactions on Audio, Speech, and Language Processing.
2007;15(5):1529-1539. doi:10.1109/TASL.2007.898454
apa: Warsitz, E., & Haeb-Umbach, R. (2007). Blind Acoustic Beamforming Based
on Generalized Eigenvalue Decomposition. IEEE Transactions on Audio, Speech,
and Language Processing, 15(5), 1529–1539. https://doi.org/10.1109/TASL.2007.898454
bibtex: '@article{Warsitz_Haeb-Umbach_2007, title={Blind Acoustic Beamforming Based
on Generalized Eigenvalue Decomposition}, volume={15}, DOI={10.1109/TASL.2007.898454},
number={5}, journal={IEEE Transactions on Audio, Speech, and Language Processing},
author={Warsitz, Ernst and Haeb-Umbach, Reinhold}, year={2007}, pages={1529–1539}
}'
chicago: 'Warsitz, Ernst, and Reinhold Haeb-Umbach. “Blind Acoustic Beamforming
Based on Generalized Eigenvalue Decomposition.” IEEE Transactions on Audio,
Speech, and Language Processing 15, no. 5 (2007): 1529–39. https://doi.org/10.1109/TASL.2007.898454.'
ieee: E. Warsitz and R. Haeb-Umbach, “Blind Acoustic Beamforming Based on Generalized
Eigenvalue Decomposition,” IEEE Transactions on Audio, Speech, and Language
Processing, vol. 15, no. 5, pp. 1529–1539, 2007.
mla: Warsitz, Ernst, and Reinhold Haeb-Umbach. “Blind Acoustic Beamforming Based
on Generalized Eigenvalue Decomposition.” IEEE Transactions on Audio, Speech,
and Language Processing, vol. 15, no. 5, 2007, pp. 1529–39, doi:10.1109/TASL.2007.898454.
short: E. Warsitz, R. Haeb-Umbach, IEEE Transactions on Audio, Speech, and Language
Processing 15 (2007) 1529–1539.
date_created: 2019-07-12T05:30:57Z
date_updated: 2022-01-06T06:51:12Z
department:
- _id: '54'
doi: 10.1109/TASL.2007.898454
intvolume: ' 15'
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
main_file_link:
- open_access: '1'
url: https://groups.uni-paderborn.de/nt/pubs/2007/WaHa07.pdf
oa: '1'
page: 1529-1539
publication: IEEE Transactions on Audio, Speech, and Language Processing
status: public
title: Blind Acoustic Beamforming Based on Generalized Eigenvalue Decomposition
type: journal_article
user_id: '44006'
volume: 15
year: '2007'
...
---
_id: '6073'
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'
author:
- first_name: Ingrid
full_name: Scharlau, Ingrid
id: '451'
last_name: Scharlau
orcid: 0000-0003-2364-9489
- first_name: Ulrich
full_name: Ansorge, Ulrich
last_name: Ansorge
- first_name: Gernot
full_name: Horstmann, Gernot
last_name: Horstmann
citation:
ama: 'Scharlau I, Ansorge U, Horstmann G. Latency facilitation in temporal-order
judgments: Time course of facilitation as a function of judgment type. Acta
Psychologica. 2006;122(2):129-159.'
apa: 'Scharlau, I., Ansorge, U., & Horstmann, G. (2006). Latency facilitation
in temporal-order judgments: Time course of facilitation as a function of judgment
type. Acta Psychologica, 122(2), 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}
}'
chicago: 'Scharlau, Ingrid, Ulrich Ansorge, and Gernot Horstmann. “Latency Facilitation
in Temporal-Order Judgments: Time Course of Facilitation as a Function of Judgment
Type.” Acta Psychologica 122, no. 2 (2006): 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.,” Acta
Psychologica, vol. 122, no. 2, pp. 129–159, 2006.'
mla: 'Scharlau, Ingrid, et al. “Latency Facilitation in Temporal-Order Judgments:
Time Course of Facilitation as a Function of Judgment Type.” Acta Psychologica,
vol. 122, no. 2, 2006, pp. 129–59.'
short: I. Scharlau, U. Ansorge, G. Horstmann, Acta Psychologica 122 (2006) 129–159.
date_created: 2018-12-10T07:04:39Z
date_updated: 2022-06-07T00:24:32Z
department:
- _id: '424'
extern: '1'
intvolume: ' 122'
issue: '2'
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)
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://kw.uni-paderborn.de/fileadmin/fakultaet/Institute/psychologie/Kognitive_Psychologie/Publikationen/ScharlauAnsorgeHorstmann2006TimeCourse.pdf
oa: '1'
page: 129 - 159
publication: Acta Psychologica
publication_identifier:
issn:
- 0001-6918
publication_status: published
status: public
title: 'Latency facilitation in temporal-order judgments: Time course of facilitation
as a function of judgment type.'
type: journal_article
user_id: '42165'
volume: 122
year: '2006'
...
---
_id: '11930'
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.
author:
- first_name: Ernst
full_name: Warsitz, Ernst
last_name: Warsitz
- first_name: Reinhold
full_name: Haeb-Umbach, Reinhold
id: '242'
last_name: Haeb-Umbach
citation:
ama: 'Warsitz E, Haeb-Umbach R. Acoustic filter-and-sum beamforming by adaptive
principal component analysis. In: IEEE International Conference on Acoustics,
Speech and Signal Processing (ICASSP 2005). Vol 4. ; 2005:iv/797-iv/800 Vol.
4. doi:10.1109/ICASSP.2005.1416129'
apa: Warsitz, E., & Haeb-Umbach, R. (2005). Acoustic filter-and-sum beamforming
by adaptive principal component analysis. In IEEE International Conference
on Acoustics, Speech and Signal Processing (ICASSP 2005) (Vol. 4, p. iv/797-iv/800
Vol. 4). https://doi.org/10.1109/ICASSP.2005.1416129
bibtex: '@inproceedings{Warsitz_Haeb-Umbach_2005, title={Acoustic filter-and-sum
beamforming by adaptive principal component analysis}, volume={4}, DOI={10.1109/ICASSP.2005.1416129},
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} }'
chicago: Warsitz, Ernst, and Reinhold Haeb-Umbach. “Acoustic Filter-and-Sum Beamforming
by Adaptive Principal Component Analysis.” In IEEE International Conference
on Acoustics, Speech and Signal Processing (ICASSP 2005), 4:iv/797-iv/800
Vol. 4, 2005. https://doi.org/10.1109/ICASSP.2005.1416129.
ieee: E. Warsitz and R. Haeb-Umbach, “Acoustic filter-and-sum beamforming by adaptive
principal component analysis,” in IEEE International Conference on Acoustics,
Speech and Signal Processing (ICASSP 2005), 2005, vol. 4, p. iv/797-iv/800
Vol. 4.
mla: Warsitz, Ernst, and Reinhold Haeb-Umbach. “Acoustic Filter-and-Sum Beamforming
by Adaptive Principal Component Analysis.” IEEE International Conference on
Acoustics, Speech and Signal Processing (ICASSP 2005), vol. 4, 2005, p. iv/797-iv/800
Vol. 4, doi:10.1109/ICASSP.2005.1416129.
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.'
date_created: 2019-07-12T05:31:00Z
date_updated: 2022-01-06T06:51:12Z
department:
- _id: '54'
doi: 10.1109/ICASSP.2005.1416129
intvolume: ' 4'
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
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://groups.uni-paderborn.de/nt/pubs/2005/WaHa05.pdf
oa: '1'
page: iv/797-iv/800 Vol. 4
publication: IEEE International Conference on Acoustics, Speech and Signal Processing
(ICASSP 2005)
status: public
title: Acoustic filter-and-sum beamforming by adaptive principal component analysis
type: conference
user_id: '44006'
volume: 4
year: '2005'
...
---
_id: '11931'
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.
author:
- first_name: Ernst
full_name: Warsitz, Ernst
last_name: Warsitz
- first_name: Reinhold
full_name: Haeb-Umbach, Reinhold
id: '242'
last_name: Haeb-Umbach
citation:
ama: 'Warsitz E, Haeb-Umbach R. Robust speaker direction estimation with particle
filtering. In: IEEE Workshop on Multimedia Signal Processing (MMSP 2004).
; 2004:367-370. doi:10.1109/MMSP.2004.1436569'
apa: Warsitz, E., & Haeb-Umbach, R. (2004). Robust speaker direction estimation
with particle filtering. In IEEE Workshop on Multimedia Signal Processing (MMSP
2004) (pp. 367–370). https://doi.org/10.1109/MMSP.2004.1436569
bibtex: '@inproceedings{Warsitz_Haeb-Umbach_2004, title={Robust speaker direction
estimation with particle filtering}, DOI={10.1109/MMSP.2004.1436569},
booktitle={IEEE Workshop on Multimedia Signal Processing (MMSP 2004)}, author={Warsitz,
Ernst and Haeb-Umbach, Reinhold}, year={2004}, pages={367–370} }'
chicago: Warsitz, Ernst, and Reinhold Haeb-Umbach. “Robust Speaker Direction Estimation
with Particle Filtering.” In IEEE Workshop on Multimedia Signal Processing
(MMSP 2004), 367–70, 2004. https://doi.org/10.1109/MMSP.2004.1436569.
ieee: E. Warsitz and R. Haeb-Umbach, “Robust speaker direction estimation with particle
filtering,” in IEEE Workshop on Multimedia Signal Processing (MMSP 2004),
2004, pp. 367–370.
mla: Warsitz, Ernst, and Reinhold Haeb-Umbach. “Robust Speaker Direction Estimation
with Particle Filtering.” IEEE Workshop on Multimedia Signal Processing (MMSP
2004), 2004, pp. 367–70, doi:10.1109/MMSP.2004.1436569.
short: 'E. Warsitz, R. Haeb-Umbach, in: IEEE Workshop on Multimedia Signal Processing
(MMSP 2004), 2004, pp. 367–370.'
date_created: 2019-07-12T05:31:01Z
date_updated: 2022-01-06T06:51:12Z
department:
- _id: '54'
doi: 10.1109/MMSP.2004.1436569
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
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://groups.uni-paderborn.de/nt/pubs/2004/WaHa04.pdf
oa: '1'
page: 367-370
publication: IEEE Workshop on Multimedia Signal Processing (MMSP 2004)
status: public
title: Robust speaker direction estimation with particle filtering
type: conference
user_id: '44006'
year: '2004'
...
---
_id: '6072'
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 '
author:
- first_name: Ulrich
full_name: Ansorge, Ulrich
last_name: Ansorge
- first_name: Manfred
full_name: Heumann, Manfred
last_name: Heumann
- first_name: Ingrid
full_name: Scharlau, Ingrid
id: '451'
last_name: Scharlau
orcid: 0000-0003-2364-9489
citation:
ama: 'Ansorge U, Heumann M, Scharlau I. Influences of visibility, intentions, and
probability in a peripheral cuing task. Consciousness and Cognition: An International
Journal. 2002;11(4):528-545.'
apa: 'Ansorge, U., Heumann, M., & Scharlau, I. (2002). Influences of visibility,
intentions, and probability in a peripheral cuing task. Consciousness and Cognition:
An International Journal, 11(4), 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}
}'
chicago: 'Ansorge, Ulrich, Manfred Heumann, and Ingrid Scharlau. “Influences of
Visibility, Intentions, and Probability in a Peripheral Cuing Task.” Consciousness
and Cognition: An International Journal 11, no. 4 (2002): 528–45.'
ieee: 'U. Ansorge, M. Heumann, and I. Scharlau, “Influences of visibility, intentions,
and probability in a peripheral cuing task.,” Consciousness and Cognition:
An International Journal, vol. 11, no. 4, pp. 528–545, 2002.'
mla: 'Ansorge, Ulrich, et al. “Influences of Visibility, Intentions, and Probability
in a Peripheral Cuing Task.” Consciousness and Cognition: An International
Journal, 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.'
date_created: 2018-12-10T07:04:28Z
date_updated: 2022-06-06T20:13:20Z
department:
- _id: '424'
extern: '1'
intvolume: ' 11'
issue: '4'
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
page: 528 - 545
publication: 'Consciousness and Cognition: An International Journal'
publication_identifier:
issn:
- 1053-8100
publication_status: published
status: public
title: Influences of visibility, intentions, and probability in a peripheral cuing
task.
type: journal_article
user_id: '42165'
volume: 11
year: '2002'
...
---
_id: '2433'
author:
- first_name: Christian
full_name: Plessl, Christian
id: '16153'
last_name: Plessl
orcid: 0000-0001-5728-9982
- first_name: Simon
full_name: Maurer, Simon
last_name: Maurer
citation:
ama: Plessl C, Maurer S. Hardware/Software Codesign in Speech Compression Applications.
Computer Engineering and Networks Lab, ETH Zurich, Switzerland; 2000.
apa: Plessl, C., & Maurer, S. (2000). Hardware/Software Codesign in Speech
Compression Applications. 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} }'
chicago: Plessl, Christian, and Simon Maurer. Hardware/Software Codesign in Speech
Compression Applications. Computer Engineering and Networks Lab, ETH Zurich,
Switzerland, 2000.
ieee: C. Plessl and S. Maurer, Hardware/Software Codesign in Speech Compression
Applications. Computer Engineering and Networks Lab, ETH Zurich, Switzerland,
2000.
mla: Plessl, Christian, and Simon Maurer. Hardware/Software Codesign in Speech
Compression Applications. 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.
date_created: 2018-04-17T15:56:00Z
date_updated: 2022-01-06T06:56:17Z
department:
- _id: '518'
keyword:
- co-design
- speech processing
publisher: Computer Engineering and Networks Lab, ETH Zurich, Switzerland
status: public
title: Hardware/Software Codesign in Speech Compression Applications
type: mastersthesis
user_id: '24135'
year: '2000'
...
---
_id: '39477'
abstract:
- lang: eng
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.
author:
- first_name: Wolfgang
full_name: Müller, Wolfgang
id: '16243'
last_name: Müller
- first_name: F.
full_name: Ullmann, F.
last_name: Ullmann
citation:
ama: 'Müller W, Ullmann F. Scalable System for 3D Audio Raytracing. In: Proceedings
IEEE International Conference on Multimedia Computing and Systems. ; 1999.
doi:10.1109/MMCS.1999.778592'
apa: Müller, W., & Ullmann, F. (1999). Scalable System for 3D Audio Raytracing.
Proceedings IEEE International Conference on Multimedia Computing and Systems.
https://doi.org/10.1109/MMCS.1999.778592
bibtex: '@inproceedings{Müller_Ullmann_1999, place={Florence, Italy}, title={Scalable
System for 3D Audio Raytracing}, DOI={10.1109/MMCS.1999.778592},
booktitle={ Proceedings IEEE International Conference on Multimedia Computing
and Systems}, author={Müller, Wolfgang and Ullmann, F.}, year={1999} }'
chicago: Müller, Wolfgang, and F. Ullmann. “Scalable System for 3D Audio Raytracing.”
In Proceedings IEEE International Conference on Multimedia Computing and Systems.
Florence, Italy, 1999. https://doi.org/10.1109/MMCS.1999.778592.
ieee: 'W. Müller and F. Ullmann, “Scalable System for 3D Audio Raytracing,” 1999,
doi: 10.1109/MMCS.1999.778592.'
mla: Müller, Wolfgang, and F. Ullmann. “Scalable System for 3D Audio Raytracing.”
Proceedings IEEE International Conference on Multimedia Computing and Systems,
1999, doi:10.1109/MMCS.1999.778592.
short: 'W. Müller, F. Ullmann, in: Proceedings IEEE International Conference on
Multimedia Computing and Systems, Florence, Italy, 1999.'
date_created: 2023-01-24T11:24:14Z
date_updated: 2023-01-24T11:24:18Z
department:
- _id: '672'
doi: 10.1109/MMCS.1999.778592
keyword:
- Ray tracing
- Loudspeakers
- Motion pictures
- Acoustic reflection
- Ear
- Digital filters
- Parallel processing
- Humans
- Physics
- Crosstalk
language:
- iso: eng
place: Florence, Italy
publication: ' Proceedings IEEE International Conference on Multimedia Computing and
Systems'
publication_identifier:
isbn:
- 0-7695-0253-9
status: public
title: Scalable System for 3D Audio Raytracing
type: conference
user_id: '5786'
year: '1999'
...