Dirk Olszewski
Daimler AG
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Featured researches published by Dirk Olszewski.
internaltional ultrasonics symposium | 2006
Dirk Olszewski; Klaus Linhard
Ultrasound loudspeakers use parametric arrays to produce highly directional audible sound beams. For this purpose, high power ultrasound emitters with large apertures compared to ultrasound wavelengths are needed. They are commonly built from large film transducers or from small emitter capsules arranged to an array. Instead of using large film emitters, this work focuses on building ultrasound source arrays from cheap standard piezomorphs although common literature disadvises this approach. Therefore, a guideline is given how to nevertheless obtain good results. Since emitter distribution and arrangement within the source array have great influence on ultrasound beam characteristics, the generated audio beam is consequently affected significantly. This work examines different emitter and array configurations to determine optimum setups
conference of the international speech communication association | 2005
Dirk Olszewski; Fransiskus Prasetyo; Klaus Linhard
Archive | 2014
Dirk Olszewski
conference of the international speech communication association | 2006
Dirk Olszewski; Klaus Linhard
conference of the international speech communication association | 2005
Gunilla Svanfeldt; Dirk Olszewski
Archive | 2014
Lütze, Lars, Dipl.-Ing.; Necker, Marc, Dr.-Ing.; Dirk Olszewski; Xue, Wei, Dipl.-Ing.
Archive | 2014
Christian Gruenler; Wilhelm Wilke; Tobias Tropper; Adam Schatton; Markus Hammori; Lars Luetze; Marc Necker; Dirk Olszewski
Archive | 2014
Christian Grünler; Wilhelm Wilke; Tobias Tropper; Adam Schatton; Markus Hammori; Qing Rao; Lars Lütze; Marc Necker; Dirk Olszewski
Archive | 2014
Christian Grünler; Necker, Marc, Dr.-Ing.; Dirk Olszewski; Lütze, Lars, Dipl.-Ing.
Archive | 2013
Linhard, Klaus, Dr.-Ing.; Dirk Olszewski; Martin Schießl; Schnepp, Harald, Dipl.-Ing.