TY - GEN A1 - von Hoffmann, Alexander A1 - Thamm, Mathias T1 - Anwendungen Lichtsimulation und Designvisualisierungen Y1 - 2004 ER - TY - GEN A1 - von Hoffmann, Alexander T1 - Adaptive Scheinwerfer-Systeme Y1 - 2002 ER - TY - CHAP A1 - von Hoffmann, Alexander T1 - Anwendung von lichttechnischen Simulationen in der Automobilindustrie Y1 - 2003 ER - TY - CHAP A1 - von Hoffmann, Alexander T1 - Innovative Meßtechnik im VOLKSWAGEN Lichtlabor Y1 - 2004 ER - TY - GEN A1 - von Hoffmann, Alexander T1 - Limits of Light Measurement Y1 - 2004 ER - TY - GEN A1 - von Hoffmann, Alexander T1 - Trends in der Automobilbeleuchtung KW - Automobilbeleuchtung Y1 - 2003 ER - TY - CHAP A1 - Taranka, Alena A1 - Gebhard, Martin A1 - Heck, Bernhard A1 - von Hoffmann, Alexander T1 - LED Straßenbeleuchtung mit Lichtleitern N2 - Für eine moderne blendungsreduzierte LED-Straßenbeleuchtung mit Lichtleitern wurden zwei Methoden simulatorisch untersucht. Die für die Simulation benötigten BSDF Daten werden hierfür mit Hilfe eines BSDF Messgerätes aus eigener Konstruktion erfasst Y1 - 2014 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:0287-2014-B002-2 SN - 1614-8436 ER - TY - JOUR A1 - von Hoffmann, Alexander A1 - Barth, Andreas A1 - Kettlein, Bernd A1 - Höltkemeier, Karl-Ullrich T1 - Konstruktion von Beleuchtungseinrichtungen im Kraftfahrzeug JF - Konstruktionspraxis KW - Lichtsimulation Y1 - 2008 UR - https://www.konstruktionspraxis.vogel.de/konstruktion-von-beleuchtungseinrichtungen-im-kraftfahrzeug-a-117036/ PB - Vogel Communications Group ER - TY - GEN A1 - von Hoffmann, Alexander T1 - Simulations, status and future trends Y1 - 2013 UR - https://issuu.com/salomon.berner/docs/dvn_2013_us_workshop_booklet-final ER - TY - JOUR A1 - Schmid, Tom A1 - Hinterholzinger, Toni A1 - von Hoffmann, Alexander T1 - Analysis of the similarity of a virtualized historical square piano to its original and a modern grand piano JF - Applied Acoustics N2 - A very well preserved historic square piano built by Steinway and Sons in 1863 forms the basis of this study. This study is part of a research project focusing on the development of methods for the digital preservation of historic instruments. Part of the study is to investigate the spectral and temporal characteristics of this square piano in comparison to the virtual instrument under development and further to a modern Steinway B-211 piano. A solenoid is used to collect the necessary data sets from both real pianos. The spectral analysis includes the evaluation of the spectrogram, the spectral centroids and the spectral slope. The temporal analysis evaluates the correlation between velocity and loudness. These tests are used to validate the results of the project and to compare the historic square piano with a modern Steinway B-211 grand piano. The comparison shows deficits in the loudness curve of the virtual square piano. These deficits have to be compensated. Furthermore, the biggest difference between the Steinway B-211 and the square piano is the emphasis on the fundamental frequency. The lower emphasis on the fundamental frequency of the square piano results in a colder and harsher sound. KW - Historic instruments Spectral analysis Similarity Piano acoustics Y1 - 2023 U6 - https://doi.org/10.1016/j.apacoust.2023.109514 SN - 0003-682X VL - 211 PB - Elsevier ER - TY - GEN A1 - von Hoffmann, Alexander T1 - Methoden zur Gestaltung von UX-Sounds Y1 - 2023 UR - https://youtu.be/RnUGJdNEXEk?si=WDGKcPLRhl5pVhWG ER -