Andy Meyer
ABSTRACT
This paper describes a method to visualize sound using beamforming (Acoustic Camera). After a short introduction the simplest beamforming method (delay and sum) will be illustrated. Furthermore, the transition from the two-dimensional to the three-dimensional acoustic mapping will be described. Prerequisite for this is a 3D-model which can be created quickly and cost-efficiently with a 3D-scanner.
- D. H. Johnson, D. E. Dudgeon: Array Signal Processing. Concepts and Techniques, PTR Prentice Hall, 1993 Google Scholar
Digital Library
- P. S. Naidu: Sensor Array Signal Processing, CRC Press LLC, 2001 Google ScholarDigital Library
- D. Döbler, A. Meyer: Dreidimensionale akustische Kartierungen mit kugelförmigen Mikrofonarrays, Proceedings of the DAGA 2007, Stuttgart, Germany, 2007Google Scholar
- O. Jaeckel: Strengths and Weaknesses of calculating Beamforming in the time domain, Proceedings of the BeBeC 2006, Berlin, Germany, 2006Google Scholar
- A. Meyer, D. Döbler: Noise source localization within a car interior using 3D-microphone arrays, Proceedings of the BeBeC 2006, Berlin, Germany, 2006Google Scholar
- G. Heilmann, A. Meyer, D. Döbler: Time-domain beamforming using 3D-microphone arrays, Proceedings of the BeBeC 2008, Berlin, Germany, 2008Google Scholar
- J. Feierabend, A. Iwainsky, R. Schröder, H. Iwainsky: Einsatz der Akustischen Kamera für die Untersuchung von Lärmemissionen von Schienenfahrzeugen, Bahntechnik aktuell (19/2009), Berlin, Germany, 2009Google Scholar
Index Terms
- Acoustic mapping on three-dimensional models
Recommendations
Mapping of Acoustic Noise and Microwave Radiation
AbstractPassive sensor systems are attractive for monitoring due to the absence of probing emissions. Two passive systems: an acoustic camera, manufactured by Brüel & Kjær Sound and Vibration Measurement A/S and a microwave radiometer are considered in ...
Predictive Acoustic Tracking with an Adaptive Neural Mechanism
Tracking an acoustic signal in motion is pertinent in several domains such as human-robot interaction and search-and-rescue robotics. Conventional approaches to acoustic tracking acquire time-of-arrival-difference signals from multi-microphone arrays ...
Theory and perceptual evaluation of the binaural reproduction and beamforming tradeoff in the generalized spherical array beamformer
Microphone arrays are widely used in speech enhancement systems for noisy and reverberant environments. Recently, a generalized spherical array beamforming approach was developed incorporating binaural sound reproduction in the beamforming process. This ...
Comments