title: Benefits and applications of laser-induced sparks in real scale model measurements.
abstract: The characteristics of using a laser-induced spark as a monopole source in scale model measurements were assessed by comparison with an electric spark and a miniature spherical loudspeaker. Room impulse responses of first order directivity sources were synthesized off-line using six spatially distributed sparks. The source steering direction was scanned across the horizontal and vertical plane to assess the origin of early reflections. The results confirm that the characteristics of the laser-induced spark outperform those of typical sources. Its monopole characteristics enable the authors to synthesize room responses of directional sources, e.g., to obtain directional information about reflections inside scale models.
authors.affiliation: Department of Signal Processing and Acoustics, Aalto University, P.O. Box 13000, Espoo FI-00076, Finland javier.gomez.bolanos@aalto.fi, symeon.delikaris-manias@aalto.fi, ville.pulkki@aalto.fi.
authors.forename: Javier
authors.initials: J
authors.lastname: Gómez-Bolaños
authors.affiliation: Department of Signal Processing and Acoustics, Aalto University, P.O. Box 13000, Espoo FI-00076, Finland javier.gomez.bolanos@aalto.fi, symeon.delikaris-manias@aalto.fi, ville.pulkki@aalto.fi.
authors.forename: Symeon
authors.initials: S
authors.lastname: Delikaris-Manias
authors.affiliation: Department of Signal Processing and Acoustics, Aalto University, P.O. Box 13000, Espoo FI-00076, Finland javier.gomez.bolanos@aalto.fi, symeon.delikaris-manias@aalto.fi, ville.pulkki@aalto.fi.
authors.forename: Ville
authors.initials: V
authors.lastname: Pulkki
authors.affiliation: Department of Physics, University of Helsinki, P.O. Box 64, Helsinki FI-00014, Finland joona.eskelinen@helsinki.fi, edward.haeggstrom@helsinki.fi.
authors.forename: Joona
authors.initials: J
authors.lastname: Eskelinen
authors.affiliation: Department of Physics, University of Helsinki, P.O. Box 64, Helsinki FI-00014, Finland joona.eskelinen@helsinki.fi, edward.haeggstrom@helsinki.fi.
authors.forename: Edward
authors.initials: E
authors.lastname: Hæggström
authors.affiliation: Department of Electrical Engineering, Technical University of Denmark, Ørsteds Plads, Building 352, Lyngby, Denmark chj@elektro.dtu.dk.
authors.forename: Cheol-Ho
authors.initials: CH
authors.lastname: Jeong