Eric Kurz

Graz University of Technology | TU Graz · Signal Processing and Speech Communication Laboratory

Porous acoustic absorbers have excellent properties in the low-frequency range when positioned in room edges, therefore they are a common method for reducing low-frequency reverberation. However, standard room acoustic simulation methods such as ray tracing and mirror sources are invalid for low frequencies in general which is a consequence of usin...

Conventional room acoustic investigations are mostly based on spatially sparse sampled measurements of single-channel room impulse responses, measured with omnidirectional microphones. Furthermore, these investigations are usually performed under the assumption of a diffuse sound field with isotropic energy distribution. However, to carry out a mor...

Die gute Absorptionswirkung von Kantenabsorbern bei tiefen Frequenzen ist empirisch umfangreich belegt und liefert wohl den Grund dafür, dass dieser Absorbertyp auch weitläufig als Bassfalle bekannt ist. Aufgrund eines fehlenden einfachen Berechnungsmodells für Kantenabsorber, kommen diese in der raumakustischen Planung allerdings relativ selten zu...

Nowadays, the use of quadcopter UAVs is becoming increasingly popular in a wide range of civil applications. Another promising application for quadcopter UAVs would be to perform automated room acoustic measurements with high spatial resolution. Obviously, the flight noise of a quadcopter UAV has a considerable influence on the quality of a room ac...

In recent years, the Inffeldgasse campus has become one of the most popular venues for open-air events for TU Graz students. The use of electro-acoustic sound systems at these very events often results in complaints from local residents. For this reason, a noise monitoring station was installed in cooperation with the Graz Environmental Office, whi...

Zusammenfassung Das heutige Wissen über den akustischen Einfluss von Kantenabsorbern auf ein Schallfeld basiert hauptsächlich auf empirischen Erfahrungen. Da es kein rechnerisches Modell für Kantenabsorber gibt, wird diese Art von Absorbern leider nur zögerlich in der raumakustischen Planung eingesetzt. Dieser Beitrag untersucht das Absorptionsverh...

Nowadays, knowledge about the acoustical influence of edge absorbers (EA) on a sound field is mainly based on empirical experience. Unfortunately, there is no computational model for the EA. Hence, this type of absorber is used hesitantly in the room acoustical design process. This contribution investigates the absorption behaviour of EAs systemati...

The acoustic condition in open-plan offices can significantly affect the work performance and job satisfaction.The main problem in this case is mostly the noise caused by co-workers and intensified by suboptimal roomacoustics. To fully assess this complex acoustic scene and to relate it to subjective perception, it is importantto use aurally-accura...

For some time, Higher-Order Ambisonics is a research topic in reproducing three-dimensional sound fields. Among others objectives, research aims at sound field reproduction over a large listening area. For predicting the spatial quality of reproduced sound the so-called energy vector (rE-vector) is a commonly used tool. At the central listening pos...