Bernd Geiser – Publications

Dr.-Ing. Bernd Geiser

Scientist

Room:: 303
Phone:: +49 241 80-26979
Fax:: +49 241 80-22254
E-mail:: geiser@iks.rwth-aachen.de

Geiser, B., Krüger, H., Vary, P., and Wiese, D.:

A Differential Microphone Array with Input Level Alignment, Directional Equalization and Fast Notch Adaptation for Handsfree Communication,
in: ITG-Fachtagung Sprachkommunikation, (Erlangen, Germany, 24.-26.9.2014), Sept. 2014.
Krüger, H., Geiser, B., and Vary, P.:

On Reverse Waterfilling in Closed-Loop LPC with Noise Shaping,
in: ITG-Fachtagung Sprachkommunikation, (Erlangen, Germany, 24.-26.9.2014), Sept. 2014.
Krüger, H., Geiser, B., and Vary, P.:

On Noise Propagation in Closed-Loop Linear Predictive Coding,
in: Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), (Florence, Italy, 4.-9.5.2014), Piscataway, NJ, USA, May 2014, pp. 3718–3722.
Geiser, B. and Vary, P.:

Artificial Bandwidth Extension of Wideband Speech by Pitch-Scaling of Higher Frequencies,
in: Workshop Audiosignal- und Sprachverarbeitung (WASP), (Koblenz, 16.-20.9.2013), ed. by Horbach, M., vol. 220, Sept. 2013, pp. 2892–2901, ISBN: 978-3-88579-614-5.
– Workshop im Rahmen der 43. Jahrestagung der Gesellschaft für Informatik –.
Gómez, A. M., Pérez-Córdoba, J. L., and Geiser, B.:

Backwards-Compatible Error Propagation Recovery for the AMR Codec over Erasure Channels,
in: Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), (Vancouver, BC, Canada, 26.-31.5.2013), Piscataway, NJ, USA, May 2013.
Geiser, B. and Vary, P.:

Speech Bandwidth Extension Based on In-Band Transmission of Higher Frequencies,
in: Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), (Vancouver, BC, Canada, 26.-31.5.2013), Piscataway, NJ, USA, May 2013.
López-Oller, D., Gómez, A. M., Pérez-Córdoba, J. L., Geiser, B., and Vary, P.:

Steganographic Pulse-Based Recovery for Robust ACELP Transmission over Erasure Channels,
in: Proceedings of IberSPEECH, (Madrid, Spain, 21.-23.11.2012), Nov. 2012, pp. 257–266, DOI: 10.1007/978-3-642-35292-8_27.
– also available in: "Advances in Speech and Language Technologies for Iberian Languages", Series "Communications in Computer and Information Science", ISBN 978-3-642-35291-1, Springer, Berlin –.
Geiser, B.:

Paths toward HD-Voice Communication,
in: Proceedings of International Workshop on Acoustic Signal Enhancement (IWAENC), (Aachen, Germany, 4.-6.9.2012), Sept. 2012.
– Keynote talk –.
Geiser, B.:

High-Definition Telephony over Heterogeneous Networks,
Dissertation, no. 33 in Aachener Beiträge zu Digitalen Nachrichtensystemen (ABDN) ed. by Vary, P., Aachen: Verlag Mainz in Aachen, June 2012, ISBN: 978-3-86130-339-8.
Heese, F., Geiser, B., and Vary, P.:

Intelligibility Assessment of a System for Artifical Bandwidth Extension of Telephone Speech,
in: Proceedings of German Annual Conference on Acoustics (DAGA), (19.-22.3.2012), Mar. 2012, pp. 905–906.
Geiser, B., Schäfer, M., and Vary, P.:

Binaural Wideband Telephony Using Steganography,
in: Konferenz Elektronische Sprachsignalverarbeitung (ESSV), (Aachen, Germany, 28.-30.9.2011), vol. 61, Dresden, Germany: TuDPress Verlag der Wissenschaften GmbH, Sept. 2011, pp. 132–137, ISBN: 978-3-94271-037-4.
Schäfer, M., Schnelling, C., Geiser, B., and Vary, P.:

A Listening Test Environment for Subjective Assessment of Speech and Audio Signal Processing Algorithms,
in: Konferenz Elektronische Sprachsignalverarbeitung (ESSV), (Aachen, Germany, 28.-30.9.2011), vol. 61, Dresden, Germany: TUDpress Verlag der Wissenschaften GmbH, Sept. 2011, pp. 237–244, ISBN: 978-3-94271-037-4.
Krüger, H., Geiser, B., Vary, P., Li, H. T., and Zhang, D.:

A Fast Indexing Method for Shells of the Gosset Lattice,
in: Konferenz Elektronische Sprachsignalverarbeitung (ESSV), (Aachen, Germany, 28.-30.9.2011), vol. 61, Dresden, Germany: TuDPress Verlag der Wissenschaften GmbH, Sept. 2011, pp. 205–212, ISBN: 978-3-94271-037-4.
Krüger, H., Geiser, B., Vary, P., Li, H. T., and Zhang, D.:

Gosset Lattice Spherical Vector Quantization with Low Complexity,
in: Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), (Prague, Czech Republic, 22.-27.5.2011), Piscataway, NJ, USA, May 2011, pp. 485–488, ISBN: 978-1-45770-539-7, DOI: 10.1109/ICASSP.2011.5946446.
Krüger, H., Geiser, B., and Vary, P.:

Gosset Low Complexity Vector Quantization with Application to Audio Coding,
in: ITG-Fachtagung Sprachkommunikation, (Bochum, Germany, 6.-8.10.2010), Berlin: VDE Verlag GmbH, Oct. 2010, ISBN: 978-3-80073-300-2.
Heese, F., Esch, T., Geiser, B., and Vary, P.:

Noise Reduction for Wideband Speech Exploiting Spectral Dependencies Based on Conditional Estimation,
in: ITG-Fachtagung Sprachkommunikation, (Bochum, Germany, 6.-8.10.2010), Berlin: VDE Verlag GmbH, Oct. 2010, ISBN: 978-3-80073-300-2.
Geiser, B., Roggendorf, M., and Vary, P.:

Multi-Band Pre-Echo Control Using a Filterbank Equalizer,
in: Proceedings of European Signal Processing Conference (EUSIPCO), (Aalborg, Denmark, 23.-27.8.2010), Leuven, Belgium, Aug. 2010, pp. 244–248.
Esch, T., Heese, F., Geiser, B., and Vary, P.:

Wideband Noise Suppression Supported by Artificial Bandwidth Extension Techniques,
in: Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), (Dallas, TX, USA), Mar. 2010, pp. 4790–4793.
Thomas, M. R. P., Geiser, B., Gudnason, J., Naylor, P. A., and Vary, P.:

Voice Source Estimation for Artificial Bandwidth Extension of Telephone Speech,
in: Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), (Dallas, TX, USA), Mar. 2010, pp. 4794–4797.
Geiser, B., Krüger, H., and Vary, P.:

Super-Wideband Bandwidth Extension for Wideband Audio Codecs Using Switched Spectral Replication and Pitch Synthesis,
in: Proceedings of German Annual Conference on Acoustics (DAGA), (Berlin, Germany, 15.-18.3.2010), Berlin, Mar. 2010, pp. 663–664.
Geiser, B., Kraemer, S., Weinstock, J., Heese, F., Jeub, M., Esch, T., Leupers, R., and Vary, P.:

Matlab and the GNU Debugger: A Powerful Duo for Implementing DSP Algorithms?,
in: IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), (Dallas, TX, USA), Mar. 2010.
– Show and Tell Demonstration –.
Löllmann, H. W., Hildenbrand, M., Geiser, B., and Vary, P.:

IIR QMF-Bank Design for Speech and Audio Subband Coding,
in: Proceedings of IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA), (New Paltz, NY, USA, 18.-21.10.2009), Oct. 2009, pp. 269–272, ISBN: 978-1-42443-679-8.
Geiser, B., Kraemer, S., Weinstock, J., Leupers, R., and Vary, P.:

An Integrated Algorithm and Software Debugging Tool for Signal Processing Applications,
in: Proceedings of System, Software, SoC and Silicon Debug Conference (S4D), (Sophia Antipolis, France), Sept. 2009.
Krüger, H., Schumacher, T., Esch, T., Geiser, B., and Vary, P.:

RTPROC: Rapid Real-Time Prototyping for Audio Signal Processing,
in: Konferenz Elektronische Sprachsignalverarbeitung (ESSV), (Dresden, Germany, 21.-23.9.2009), vol. 1, TUDpress Verlag der WIssenschaften, Sept. 2009, pp. 158–166, ISBN: 978-3-94129-831-6.
Geiser, B. and Vary, P.:

Joint Pre-Echo Control and Frame Erasure Concealment for VoIP Audio Codecs,
in: Proceedings of European Signal Processing Conference (EUSIPCO), (Glasgow, Scotland), Aug. 2009, pp. 1259–1263.
Geiser, B., Krüger, H., Löllmann, H. W., Vary, P., Zhang, D., Wan, H., Li, H. T., and Zhang, L. B.:

Candidate Proposal for ITU-T Super-Wideband Speech and Audio Coding,
in: Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), (Taipei, Taiwan), Apr. 2009, pp. 4121–4124, ISBN: 978-1-42442-354-5.
Krüger, H., Schreiber, R., Geiser, B., and Vary, P.:

On Logarithmic Spherical Vector Quantization,
in: Proceedings of International Symposium on Information Theory and its Applications (ISITA), (Auckland, New Zealand), Dec. 2008, pp. 600–605, ISBN: 978-1-42442-069-8.
Geiser, B., Mertz, F., and Vary, P.:

Steganographic Packet Loss Concealment for Wireless VoIP,
in: ITG-Fachtagung Sprachkommunikation, (Aachen, Germany), VDE Verlag GmbH, Oct. 2008, ISBN: 978-3-80073-120-6.
Geiser, B. and Vary, P.:

Beyond Wideband Telephony - Bandwidth Extension for Super-Wideband Speech,
in: Proceedings of German Annual Conference on Acoustics (DAGA), (Dresden, Germany), Mar. 2008, pp. 635–636, ISBN: 978-3-98086-594-4.
– Special Session "Wideband Speech Revisited" –.
Geiser, B. and Vary, P.:

High Rate Data Hiding in ACELP Speech Codecs,
in: Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), (Las Vegas, NV, USA), Mar. 2008, pp. 4005–4008, ISBN: 978-1-42441-483-3.
Geiser, B., Ragot, S., and Taddei, H.:

Embedded Speech Coding: From G.711 to G.729.1,
in: Advances in Digital Speech Transmission, ed. by Martin, R., Heute, U., and Antweiler, C., Chichester, UK: John Wiley & Sons, Ltd., Jan. 2008, ch. 8, p. 201–247, ISBN: 978-0-47051-739-0.
Geiser, B., Jax, P., Vary, P., Taddei, H., Schandl, S., Gartner, M., Guillaumé, C., and Ragot, S.:

Bandwidth Extension for Hierarchical Speech and Audio Coding in ITU-T Rec. G.729.1,
in: IEEE Transactions on Audio, Speech, and Language Processing, vol. 15, no. 8, Nov. 2007, pp. 2496–2509, ISSN: 1558-7916.
Vary, P. and Geiser, B.:

Steganographic Wideband Telephony Using Narrowband Speech Codecs,
in: Conference Record of Asilomar Conference on Signals, Systems, and Computers (ACSSC), (Pacific Grove, CA, USA), Nov. 2007, pp. 1475–1479.
– Invited Talk –.
Geiser, B., Taddei, H., and Vary, P.:

Artificial Bandwidth Extension without Side Information for ITU-T G.729.1,
in: Proceedings of European Conference on Speech Communication and Technology (INTERSPEECH), (Antwerp, Belgium, 27.-31.8.2007), Aug. 2007, pp. 2493–2496.
Geiser, B. and Vary, P.:

Estimation of Bandwidth Extension Parameters in ITU-T G.729.1,
in: Proceedings of ETSI Workshop on Speech and Noise in Wideband Communication, (Sophia Antipolis, France), May 2007.
Ragot, S., Kövesi, B., Trilling, R., Virette, D., Duc, N., Massaloux, D., Proust, S., Geiser, B., Gartner, M., Schandl, S., Taddei, H., Gao, Y., Shlomot, E., Ehara, H., Yoshida, K., Vaillancourt, T., Salami, R., Lee, M. S., and Kim, D. Y.:

ITU-T G.729.1: An 8-32 kbit/s Scalable Coder Interoperable with G.729 for Wideband Telephony and Voice over IP,
in: Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), (Honolulu, Hawai'i, USA), vol. IV, Apr. 2007, pp. 529–532.
Geiser, B. and Vary, P.:

Backwards Compatible Wideband Telephony in Mobile Networks: CELP Watermarking and Bandwidth Extension,
in: Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), (Honolulu, Hawai'i, USA), vol. IV, Apr. 2007, pp. 533–536.
– Awarded with the "2007 IEEE Spoken Language Processing Grant" –.
Geiser, B., Jax, P., Vary, P., Taddei, H., Gartner, M., and Schandl, S.:

A Qualified ITU-T G.729EV Codec Candidate for Hierarchical Speech and Audio Coding,
in: Proceedings of IEEE International Workshop on Multimedia Signal Processing (MMSP), (Victoria, BC, Canada), Oct. 2006, pp. 114–118.
Jax, P., Geiser, B., Schandl, S., Taddei, H., and Vary, P.:

An Embedded Scalable Wideband Codec based on the GSM EFR Codec,
in: Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), (Toulouse, France), vol. I, May 2006, pp. 5–8.
Jax, P., Geiser, B., Schandl, S., Taddei, H., and Vary, P.:

A Scalable Wideband "Add-On" for the G.729 Speech Codec,
in: ITG-Fachtagung Sprachkommunikation, (Kiel, Germany), Apr. 2006.
Geiser, B., Jax, P., and Vary, P.:

Artificial Bandwidth Extension of Speech Supported by Watermark-Transmitted Side Information,
in: Proceedings of European Conference on Speech Communication and Technology (INTERSPEECH), (Lisbon, Portugal), Sept. 2005, pp. 1497–1500.
Geiser, B., Jax, P., and Vary, P.:

Robust Wideband Enhancement of Speech by Combined Coding and Artificial Bandwidth Extension,
in: Proceedings of International Workshop on Acoustic Echo and Noise Control (IWAENC), (Eindhoven, The Netherlands), Sept. 2005, pp. 21–24.
Geiser, B., Jax, P., and Vary, P.:

Backwards-Compatible Wideband Speech Coding,
in: Sitzung der ITG-Fachgruppe "Angewandte Informationstheorie", (Aachen, Germany), Apr. 2005.