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DTSTART;TZID=Europe/Berlin:20220114T110000
DTEND;TZID=Europe/Berlin:20220114T120000
DTSTAMP:20260426T030347
CREATED:20220107T085907Z
LAST-MODIFIED:20220107T085907Z
UID:1324-1642158000-1642161600@blog.rwth-aachen.de
SUMMARY:Lachenmayr: Applied room acoustics - How to build a concert hall
DESCRIPTION:The building of a concert hall is a process of many aspects and stages – some of which have to do with acoustics. In this talk we will share insights from Müller-BBMs’ extensive experience in the topic by means of a project case study: Musikzentrum Bochum. The various acoustic planning stages within a given project framework are explained and the process up to a new cultural complex with an excellent symphonic hall is followed. With the aid of acoustic planning tools such as parametric design and measurement tools such as model absorption tests we increase the degree of detail and quality step by step. Finally\, inauguration day reveals the acoustic achievements. Listening\, measuring\, assisting the performers and some politics are key components here. The talk concludes with playback of in situ audio recordings and the question “How will you help to shape the future concert hall?”. \nMelden Sie sich hier an um die Einladung zu dem Vortrag per E-Mail zu erhalten.\nRegister here to receive the invitation to this talk via E-Mail. \nZoom-Meeting-ID: 958 1243 7205\nPasswort: 533726
URL:https://blog.rwth-aachen.de/akustik/event/lachenmayr-applied-room-acoustics-how-to-build-a-concert-hall/
LOCATION:Zoom-Meeting
CATEGORIES:Vortrag
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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220121T110000
DTEND;TZID=Europe/Berlin:20220121T120000
DTSTAMP:20260426T030347
CREATED:20211125T091421Z
LAST-MODIFIED:20211229T150826Z
UID:1826-1642762800-1642766400@blog.rwth-aachen.de
SUMMARY:Witew: Measurements in room acoustics - Uncertainties and influence of the measurement position
DESCRIPTION:Regardless of the field\, measurements are essential for the validation of theories and for making well-founded decisions. A criterion for the validity and comparability of measured values is their uncertainty. The „Guide to the Expression of Uncertainty in Measurement“ (GUM) provides a standardized framework for determining and interpreting measurement uncertainty. In room acoustic measurements\, the application of these rules is not yet widespread. On the one hand\, this is due to the fact that well established 2-CH-FFT correlation techniques rely on a complex principle\, which is not covered by the classical guide. In addition\, the effect of input variables on a measurement can only be determined in individual cases after considerable effort. An example are fluctuations of room acoustic quantities over smallest distances between measurement locations in concert halls. This change of the sound field over the location is sometimes considerable and can only be predicted in relatively simple boundary value problems. This raises the question of the validity and interpretability of room acoustics measurements. \nThe goal of this thesis is to provide a GUM-compliant discussion of uncertainties in measuring room acoustic single-number quantities. This starts with a structured search of variables that potentially influence the measurement of room impulse responses. In a second step\, this uncertainty is propagated through the algorithm for determining room acoustic single-number quantities. \nFurther emphasis is placed on the investigation of spatial fluctuations of the sound field in auditoria. The influence of an uncertain measurement position on the overall measurement uncertainty is discussed. To reach general conclusions\, the relation between changes in the measurement location and the corresponding changes in room acoustics quantities is investigated empirically in extensive measurement series. To this purpose\, a measurement apparatus was designed that allows automatic\, high-resolution sampling of sound fields over large areas. The collected data sets the foundation to propagate the uncertainty using a Monte Carlo method. \nThis study shows how precisely a measurement position must be defined to ensure a given uncertainty of room acoustical single-number quantities. The presented methods form a foundation that can be flexibly extended in future investigations to include additional influences on the measurement uncertainty. \nMelden Sie sich hier an um die Einladung zu dem Vortrag per E-Mail zu erhalten.\nRegister here to receive the invitation to this talk via E-Mail. \nZoom-Meeting-ID: 988 8623 3992\nPasswort: 804114
URL:https://blog.rwth-aachen.de/akustik/event/witew-measurements-room-acoustics/
LOCATION:IHTA Seminarraum (60 Persons) and Zoom-Meeting (Hybrid)\, Kopernikusstr. 5\, Aachen\, 52074\, Deutschland
CATEGORIES:Verteidigung Dissertation
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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220128T110000
DTEND;TZID=Europe/Berlin:20220128T113000
DTSTAMP:20260426T030347
CREATED:20220123T203916Z
LAST-MODIFIED:20220123T203953Z
UID:1860-1643367600-1643369400@blog.rwth-aachen.de
SUMMARY:Wenzel: Internship with Drägerwerk
DESCRIPTION:Drägerwerk\, short Dräger\, is a leading company in the fields of both medical and safety technology. Based in Lübeck\, the company has employees and customers around the globe and is well-known for lifesaving equipment like ventilators\, anaesthesia machines and respiratory protection.\nThe internship took place in the Research and Development department within the business unit Hospital Consumables and Accessoires. The main task was the development of a wireless device capable of fulfilling the tasks of an existing\, wire-bound product. This included conceptualization of both hardware and software\, as well as building a simple prototype with a microcontroller and sensors.\n \nMelden Sie sich hier an um die Einladung zu dem Vortrag per E-Mail zu erhalten.\nRegister here to receive the invitation to this talk via E-Mail. \nZoom-Meeting-ID: 923 7007 2337\nPasswort: 516566
URL:https://blog.rwth-aachen.de/akustik/event/wenzel-internship-with-draegerwerk/
LOCATION:Zoom-Meeting
CATEGORIES:Vortrag Praxissemester
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