Biography

Jens Ahrens has received a Master of Science with distinction in Electrical Engineering/Sound Engineering from Graz University of Technology and University of Music and Dramatic Arts Graz and the Doctoral Degree (Dr.-Ing.) with distinction from University of Technology Berlin. From 2006 to 2011 he was member of the Audio Technology Group at Deutsche Telekom Laboratories/TU Berlin where he worked on the topic of sound field synthesis. He joined MSR in fall 2011.

Research Interests

Spatial audio capture and presentation
Sound field synthesis
Microphone and loudspeaker array signal processing
Psychoacoustics

Projects

Selected Publications

Jens Ahrens, Mark R.P. Thomas, and Ivan Tashev, HRTF Magnitude Modeling Using a Non-Regularized Least-Squares Fit of Spherical Harmonics Coefficients on Incomplete Data, in APSIPA Annual Summit and Conference, Hollywood, CA, USA, 4 December 2012
Mark R. P. Thomas, Jens Ahrens, and Ivan Tashev, Beamformer Design Using Measured Microphone Directivity Patterns: Robustness to Modelling Error, in APSIPA Annual Summit and Conference, Hollywood, CA, USA, December 2012
Mark R. P. Thomas, Jens Ahrens, and Ivan Tashev, Optimal 3D Beamforming Using Measured Microphone Directivity Patterns, Proc. Intl. Workshop Acoust. Signal Enhancement (IWAENC), Aachen, Germany, 4 September 2012
Jens Ahrens and Sascha Spors, Wave field synthesis of a sound field described by spherical harmonics expansion coefficients, in JASA, vol. 131, no. 3, pp. 2190-2199, Acoustical Society of America, March 2012
Jens Ahrens and Sascha Spors, Applying the ambisonics approach to planar and linear distributions of secondary sources and combinations thereof, in Acta Acustica utd. With Acustica, vol. 98, no. 1, pp. 28-36, January 2012
Jens Ahrens, Analytic Methods of Sound Field Synthesis, Springer Verlag, 2012
Jens Ahrens and Sascha Spors, Wave field synthesis of moving virtual sound sources with complex radiation properties, in JASA, vol. 130, no. 5, pp. 2807-2816, Acoustical Society of America, November 2011
Jens Ahrens and Sascha Spors, Sound Field Reproduction Using Planar and Linear Arrays of Loudspeakers, in IEEE Transactions on Audio, Speech, and Language Processing, vol. 18, no. 8, IEEE, November 2010
Matthias Geier, Jens Ahrens, and Sascha Spors, Object-based Audio Reproduction and the Audio Scene Description Format, in Organized Sound, vol. 15, no. 3, 2010
Jens Ahrens and Sascha Spors, An Analytical Approach to Sound Field Reproduction Using Circular and Spherical Loudspeaker Distributions, in Acta Acustica utd. with Acustica, vol. 94, no. 6, November 2008

Contact Info

E-mail: jeahrens--at--microsoft--dot--com
Postal Mail: Jens Ahrens, Microsoft Corporation, One Microsoft Way, Redmond WA, 98052-6399, USA
Tel: +1 (425) 421-2164
Fax: +1 (425) 936-7329 (This is the main Microsoft fax number. Make sure to send documents to my attention.)