Sound focusing in rooms. II. The spatio-temporal inverse filter

Journal of the Acoustical Society of America

Volumn 114, Issue 6, 2003, Pages 3044-3052

  Yon, Sylvain ^a   Tanter, Mickaël ^a   Fink, Mathias ^a  

^a INSTITUT LANGEVIN   (France)

Author keywords

[No Author keywords available]

Indexed keywords

ACOUSTIC WAVE PROPAGATION; ACOUSTIC WAVE REFLECTION; ANTENNAS; BANDWIDTH; LOUDSPEAKERS; MICROPHONES;

INVERSE FILTERS; SPATIO-TEMPORAL INVERSE FILTERING;

ACOUSTIC WAVES;

ACOUSTICS;

ACOUSTICS; ANTENNA; ARTICLE; COMPARATIVE STUDY; CONTROLLED STUDY; FILTER; FREQUENCY MODULATION; MICROPHONE; PRIORITY JOURNAL; SOUND; SOUND TRANSMISSION; SPACE; THEORY;

EID: 0347478240     PISSN: 00014966     EISSN: None     Source Type: Journal    
DOI: 10.1121/1.1628247     Document Type: Article

References (15)

1. Control points correspond to a set of measurement points whose signals allow a reconstruction of the sound field in the zone of interest.
2. V. Martin, P. Vignassa, and B. Peseux, "Numerical Vibro-acoustic modelling of aircraft for the active acoustic control of interior noise," J. Sound Vib. 176(3), 307-332 (1994).
3. O. Kirkeby and P. A. Nelson, "Digital Filter Design for Inversion Problems in Sound Reproduction," J. Audio Eng. Soc. 47(7/8), 583-595 (1999).
4. Y. Kahana, P. A. Nelson, O. Kirkeby, and H. Hamada, "A multiple microphone recording technique for the generation of virtual acoustic images," J. Acoust. Soc. Am. 105, 1503-1516 (1999).
5. S. Yon and M. Fink, "Sound focusing in reverberating rooms and through walls: the time reversal approach," J. Acoust. Soc. Am. accepted in November 2002.
6. M. Fink, "Time-reversed Acoustics," Phys. Today 50(3), 34-40 (1997).
7. M. Tanter, J.-L. Thomas, and M. Fink, "Time reversal and the Inverse filter," J. Acoust. Soc. Am. 108, 223-234 (2000).
8. C. Dorme and M. Fink, "Focusing in transmit-receive mode through inhomogeneous media: the time reversal matched filter approach," J. Acoust. Soc. Am. 98, 1155-1162 (1995).
9. M. Tanter, J.-F. Aubry, J. Gerber, J.-L. Thomas, and M. Fink, "Optimal focusing by spatio-temporal inverse filter, Part I: Basic principles," J. Acoust. Soc. Am. 101, 37-47 (2001).
10. P. Roux and M. Fink, "Time reversal in a waveguide: Study of the temporal and spatial focusing," J. Acoust. Soc. Am. 107, 2418-2429 (2000).
11. A. Derode, P. Roux, and M. Fink, "Robust acoustic time reversal with high-order multiple scattering," Phys. Rev. Lett. 75(23), 4206-4209 (1995).
12. J.-F. Aubry, M. Tanter, J. Gerber, J.-L. Thomas, and M. Fink, "Optimal focusing by spatio-temporal inverse filter. Part II. Experiments," J. Acoust. Soc. Am. 101, 48-58 (2001).
13. P. Blomgren, G. Papanicolaou, and H. Zhao, "Super-resolution in time reversal acoustics," J. Acoust. Soc. Am. 111, 230-248 (2000).
14. C. Prada and M. Fink, "Eigenmodes of the time reversal operator: a solution to selective focusing in multiple target media," Wave Motion 20, 151-163 (1994).
15. 2 are the mean sound levels measured in each room, for a white noise.