This research describes a method to auralize the effect of a three-dimensional directional pattern of an acoustic source in a reverberant environment using real acoustic measurements of laser sparks. Laser-induced breakdown (LIB) produces a massless and point-like acoustic source. The authors demonstrate the performance of a volumetric array of LIBs for synthesizing arbitrary radiation patterns, auralize the radiation pattern of a loudspeaker and compare the measured and synthesized impulse responses in a reverberant room, and evaluate the method using listening tests. The synthesized room response matched the target response both in room response reconstruction and in listening tests. The proposed method requires no previous knowledge about the room characteristics; auralization is performed by convolving a sound signal with the synthesized room impulse responses using the cloud of laser sparks. The quality of the synthesized version was rated to be excellent.
Delikaris-Manias, Symeon; Bolaños, Javier Gómez; Eskelinen, Joona; Huhtakallio, Ilkka; Hæggström, Edward; Pulkki, Ville
Affiliations: Department of Signal Processing and Acoustics, Aalto University, Espoo, Finland; Department of Physics, University of Helsinki, Helsinki, Finland(See document for exact affiliation information.)
JAES Volume 64 Issue 10 pp. 720-730; October 2016
Publication Date: October 25, 2016
No AES members have commented on this paper yet.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.