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GfK e.V.
RWTH Aachen University
Thomas Lotter – Publications
Dr.-Ing. Thomas Lotter (2004)
Former scientific co-worker
Current Employer:
Siemens AG, Erlangen
E-mail:
Lotter, T.
and
Vary, P.
:
Dual-Channel Speech Enhancement by Superdirective Beamforming
,
in:
EURASIP Journal on Applied Signal Processing
, 2006.
Lotter, T.
:
Single and Multimicrophone Spectral Amplitude Estimation using a Super-Gaussian Speech Model
,
in:
Speech Enhancement
, ed. by Benesty, J., Makino, S., and Chen, J., Springer Verlag, 2005.
Lotter, T.
,
Sauert, B.
, and
Vary, P.
:
A Stereo Input-Output Superdirective Beamformer for Dual Channel Noise Reduction
,
in:
Proceedings of European Conference on Speech Communication and Technology (INTERSPEECH)
, (Lisboa, Portugal, 4.9.2005-8.9.2009), Sept. 2005, pp. 2285–2288.
Beaugeant, C., Varga, I.,
Lotter, T.
,
Jax, P.
, and
Vary, P.
:
Noise Reduction Preprocessing for the Adaptive Multi-Rate Wideband (AMR-WB) Speech Codec
,
in:
Proceedings of ETSI Workshop on Wideband Speech Quality in Terminals and Networks
, (Mainz, Germany), June 2005.
Lotter, T.
and
Vary, P.
:
Speech Enhancement by MAP Spectral Amplitude Estimation using a Super-Gaussian Speech Model
,
in:
EURASIP Journal on Applied Signal Processing
, vol. 2005, no. 7, May 2005, pp. 1110–1126.
Lotter, T.
:
Single and Multimicrophone Speech Enhancement for Hearing Aids
,
Dissertation, no. 18 in Aachener Beiträge zu Digitalen Nachrichtensystemen (ABDN) ed. by
Vary, P.
, Aachen, Germany: Verlag Mainz, 2004.
Lotter, T.
and
Vary, P.
:
Noise Reduction by Joint Maximum a Posteriori Spectral Amplitude and Phase Estimation with Super-Gaussian Speech Modelling
,
in:
Proceedings of European Signal Processing Conference (EUSIPCO)
, (Vienna, Austria), Sept. 2004, pp. 1457–1460.
Krüger, H.
,
Lotter, T.
, and
Vary, P.
:
A Versatile DSP-System for Student-Projects on Embedded Real-Time Audio Signal Processing
,
in:
Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
, (Montreal, Canada), May 2004.
Krüger, H.
,
Lotter, T.
,
Enzner, G.
, and
Vary, P.
:
A PC based Platform for Multichannel Real-time Audio Processing
,
in:
Proceedings of International Workshop on Acoustic Echo and Noise Control (IWAENC)
, (Kyoto, Japan), Sept. 2003.
Lotter, T.
, Benien, C., and
Vary, P.
:
Multichannel Direction-Independent Speech Enhancement using Spectral Amplitude Estimation
,
in:
EURASIP Journal on Applied Signal Processing
, Sept. 2003, pp. 1147–1157.
– Special Issue on Signal Processing for Acoustic Communication Systems –.
Lotter, T.
and
Vary, P.
:
Noise Reduction by Maximum a Posteriori Spectral Amplitude Estimation with Supergaussian Speech Modeling
,
in:
Proceedings of International Workshop on Acoustic Echo and Noise Control (IWAENC)
, (Kyoto, Japan), Sept. 2003.
Lotter, T.
and
Vary, P.
:
MAP Estimation of Magnitude and Magnitude-Squared DFT Coefficients for Microphone Arrays
,
in:
Workshop on Microphone Array Systems
, (Erlangen, Germany), May 2003.
Lotter, T.
, Benien, C., and
Vary, P.
:
Multichannel Speech Enhancement using Bayesian Spectral Amplitude Estimation
,
in:
Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
, (Hong Kong, China), Apr. 2003.
Lotter, T.
,
Löllmann, H. W.
, and
Vary, P.
:
Robust Direction of Arrival Estimation for Speech Enhancement in Noisy Reverberant Rooms
,
in:
Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
, (Orlando, Florida, USA), May 2002.
Martin, R.
and
Lotter, T.
:
Optimal recursive smoothing of non-stationary periodograms
,
in:
Proceedings of International Workshop on Acoustic Echo and Noise Control (IWAENC)
, (Darmstadt, Germany), Sept. 2001.
Martin, R.
, Petrovsky, A., and
Lotter, T.
:
Planar Superdirective Microphone Arrays for Speech Acquisition in the Car
,
in:
Proceedings of European Conference on Speech Communication and Technology (INTERSPEECH)
, (Aalborg, Denmark), Sept. 2001.