March 2018 – Present
Erlangen, Germany

Postdoctoral Researcher

International Audio Laboratories Erlangen

Reserach topics include:

  • Binaural Reproduction
  • 6-Degrees-of-Freedom
  • Virtual and Augmented Reality
August 2010 – Present
Erlangen, Germany

Research Consultant

Fraunhofer Institute for Integrated Circuits

Lead developer of IIS 3D Reverb audio plugin for multichannel post-production

Selected Publications

In this contribution, it is shown that the FDN is lossless for any set of delays, if all irreducible components of the feedback matrix are diagonally similar to a unitary matrix.
IEEE Trans. Signal Process., 2017

It is shown that the echo density of FDNs follows a polynomial function, whereby the polynomial coefficients can be derived from the lengths of the delays for which an explicit method is given. The mixing time of impulse responses can be predicted from the echo density, and conversely, a desired mixing time can be achieved by a derived mean delay length.
IEEE/ACM Trans. Audio, Speech, Lang. Proc., 2017

This paper proposes alternatively time-varying mixing matrices, which is an efficient algorithm corresponding to symmetric up and down frequency shifting.
J. Acoust. Soc. Amer., 2016

Recent Publications

More Publications

The minimum audible angle has been studied with a stationary listener and a stationary or a moving sound source. The study at hand …

Virtual reality systems with multimodal stimulation and up to six degrees-of-freedom movement pose novel challenges to audio quality …

First-order Ambisonics (FOA) recordings can be processed and reproduced over headphones. They can be rotated to account for the …

Recent Posts

More Posts

Reproduction of All About Audio Equalization: Solutions and Frontiers by V. Välimäki and J. Reiss

Algorithm from Computing real logarithm of a real matrix by Sherif, N., & Morsy, E. in International Journal of Algebra, 2008



Dense Reverberation with Delay Feedback Matrices

This paper proposes delay feedback matrices to create dense artificial reverberation.

Modal Decomposition of Feedback Delay Networks

This paper proposes a method to determine the modes of a Feedback Delay Network (FDN).

Optimized velvet-noise decorrelator

This paper proposes a method to optimize the decorrelation properties of a sparse noise sequence, called velvet noise, to generate short sparse FIR decorrelation filters.

Reproduce In Code

This is a collection of posts which aims at reproducing plots and data from papers.

Sign-Agnostic Matrix Design for Spatial Artificial Reverberation with Feedback Delay Networks

A central topic in the design of spatial FDNs is the choice of the feedback matrix that governs the interaction between spatially distributed elements and therefore the spatial impression.