Institut für Informationsverarbeitung (TNT)

Stephan Preihs received his Dipl.-Ing. degree in electrical engineering, with an emphasis on communications engineering and high frequency technology, from the Gottfried Wilhelm Leibniz Universität Hannover in 2010.

Since August of 2010, he has been working as a research assistant towards a doctoral degree (Dr.-Ing.) at the Institut für Informationsverarbeitung (TNT) of the Gottfried Wilhelm Leibniz Universität Hannover where he graduated in September of 2016.

Research Interests

Low-delay scalable audio coding
Design of low-delay filterbanks
Predictive coding with ADPCM
Error-concealment techniques
Signal detection and classification

Supervised Theses and Student Works

Low Delay Error Concealment for Audio Signals (Verzögerungsarme Fehlerverschleierung für Audiosignale), 2011/2012
Untersuchung verschiedener Verfahren für den Entwurf von Filterbankstrukturen mit geringer Latenz, 2012
Detektion und Klassifikation von Schallereignissen in Rotorblättern von Windenergieanlagen, 2013
Fehlerrobuste ADPCM zur Audiocodierung mit geringer Latenz, 2014/2015
Vektorquantisierung für die Audiocodierung mit geringer Latenz, 2015
Several Research Assistants (RA) (>5) supervised (2010-today)

Projekte

FG Audio Processing

Transform and subband coding

Damage Detection

Error Concealment

Publications

Show recent publications only

Conference Contributions
- Stephan Preihs, Timm Lamprecht, Jörn Ostermann
  Error Robust Low Delay Audio Coding Using Spherical Logarithmic Quantization
  2016 European Signal Processing Conference (EUSIPCO), Budapest, August 2016
  (DOI) BibTeX
- Stephan Preihs, Christoph Wacker, Jörn Ostermann
  Adaptive Pre- and Post-Filtering for a Subband ADPCM-based Low Delay Audio Codec
  2015 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA), New Paltz, October 2015
  (DOI) BibTeX
- Stephan Preihs, Jörn Ostermann
  Using Cascaded Global Optimization for Filter Bank Design in Low Delay Audio Coding
  139th AES Convention [peer-reviewed], New York, October 2015
  BibTeX
- Thomas Krause, Stephan Preihs, Jörn Ostermann
  Acoustic Emission Damage Detection for Wind Turbine Rotor Blades Using Airborne Sound
  10th International Workshop on Structural Health Monitoring (IWSHM) , September 2015
  (pdfLink) BibTeX
- Stephan Preihs, Jörn Ostermann
  Globally Optimized Dynamic Bit-Allocation Strategy for Subband ADPCM-Based Low Delay Audio Coding
  40th IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Brisbane, Australia, April 2015
  (DOI) BibTeX
- Thomas Krause, Stephan Preihs, Jörn Ostermann
  Airborne Sound Based Damage Detection for Wind Turbine Rotor Blades Using Impulse Detection in Frequency Bands
  1st International Wind Engineering Conference (IWEC), September 2014
  (pdf) BibTeX
- Thomas Krause, Stephan Preihs, Jörn Ostermann
  Detection of Impulse-Like Airborne Sound for Damage Identification in Rotor Blades of Wind Turbines
  7th European Workshop on Structural Health Monitoring (EWSHM), July 2014
  (PDF) BibTeX
- Stephan Preihs, Thomas Krause, Jörn Ostermann
  Comparison of Filter Bank Design Algorithms for use in Low Delay Audio Coding
  133rd AES Convention, San Francisco, October 2012
  BibTeX
- Stephan Preihs, Fabian-Robert Stöter, Jörn Ostermann
  Low Delay Error Concealment for Audio Signals
  46th AES Conference on Audio Forensics, Denver, June 2012
  (pdf) BibTeX
- Stephan Preihs, Jörn Ostermann
  Error Robust Low Delay Audio Coding based on Subband ADPCM
  131st AES Convention, New York, October 2011
  BibTeX
- C. Orlob, Kornek D., S. Preihs, I. Rolfes
  Characterization of Electromagnetic Properties of Molded Interconnect Device Materials
  German Microwave Conference 2009 (GeMiC 2009), pp. 1--4, Munich, Germany, March 2009
  BibTeX
- C. Orlob, S. Preihs, D. Kornek, I. Rolfes
  Comparison of Methods for Permittivity Measurements
  Kleinheubacher Tagung 2008, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Milternbert, Germany, September 2008
  BibTeX
Journals
- C. Orlob, D. Kornek, S. Preihs, I. Rolfes
  Comparison of methods for broadband electromagnetic characterization of Molded Interconnect Device materials
  Advances in Radio Science, Vol. 7, pp. 11--15, 2009
  (Link) BibTeX
Standardisation Contributions
- Holger Meuel, Stephan Preihs, Jörn Ostermann
  On Light-field Cameras using the Example of Lytro Illum
  ISO/IEC JTC1/SC29/WG11 Document M36169, 112th MPEG-Meeting, Warsaw, PL, June 2015
  (pdf) BibTeX

Other activities

Former Web-Admin
Former employee representative (3 times reelected)
Former teacher for lecture Digitale Signalverarbeitung
Former teacher for lecture Mathevorkurs
Former supervisor of student practical training Abtastung und Quantisierung, as part of the Information Processing Laboratory

Standardization contributions

Holger Meuel, Stephan Preihs, Jörn Ostermann: "On Light-field Cameras using the Example of Lytro Illum",
ISO/IEC JTC1/SC29/WG11 Document M36169, 112th MPEG-Meeting: Warsaw, PL, June 2015