Dr.-Ing. Thomas Lotter

In 2004 former scientific co-worker

Current Employer:Siemens AG, Erlangen

E-Mail: thomas.lotter(at)gmx.de

Publications

Lotter, T. and Vary, P.: Dual-Channel Speech Enhancement by Superdirective Beamforming, in (EURASIP ASP), 2006


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), pp. 2285-2288, Sep. 2005


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), Jun. 2005


Lotter, T. and Vary, P.: Speech Enhancement by MAP Spectral Amplitude Estimation using a Super-Gaussian Speech Model, in (EURASIP ASP), Vol. 2005, No. 7, pp. 1110-1126, May. 2005


Lotter, T.: Single and Multimicrophone Spectral Amplitude Estimation using a Super-Gaussian Speech Model, in Speech Enhancement, Springer Verlag, 2005


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), pp. 1457-1460, Sep. 2004


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


Lotter, T.: Single and Multimicrophone Speech Enhancement for Hearing Aids, Ph. D. Dissertation IND, RWTH Aachen, Aachener Beiträge zu Digitalen Nachrichtensystemen (ABDN), 18, 2004


Lotter, T., Benien, C. and Vary, P.: Multichannel Direction-Independent Speech Enhancement using Spectral Amplitude Estimation, in (EURASIP ASP), pp. 1147-1157, Sep. 2003


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), Sep. 2003


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), Sep. 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 ©2002 IEEE


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), Sep. 2001


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), Sep. 2001