System and method for characterizing, synthesizing, and/or canceling out acoustic signals from inanimate sound sources
Abstract
A system and method for characterizing, synthesizing, and/or canceling out acoustic signals from inanimate sound sources is disclosed. Propagating wave electromagnetic sensors monitor excitation sources in sound producing systems, such as machines, musical instruments, and various other structures. Acoustical output from these sound producing systems is also monitored. From such information, a transfer function characterizing the sound producing system is generated. From the transfer function, acoustical output from the sound producing system may be synthesized or canceled. The methods disclosed enable accurate calculation of matched transfer functions relating specific excitations to specific acoustical outputs. Knowledge of such signals and functions can be used to effect various sound replication, sound source identification, and sound cancellation applications.
- Inventors:
-
- Berkeley, CA
- Livermore, CA
- Danville, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 918093
- Patent Number(s):
- 7283948
- Application Number:
- 10/165,565
- Assignee:
- The Regents of the University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01H - MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Holzrichter, John F, Burnett, Greg C, and Ng, Lawrence C. System and method for characterizing, synthesizing, and/or canceling out acoustic signals from inanimate sound sources. United States: N. p., 2007.
Web.
Holzrichter, John F, Burnett, Greg C, & Ng, Lawrence C. System and method for characterizing, synthesizing, and/or canceling out acoustic signals from inanimate sound sources. United States.
Holzrichter, John F, Burnett, Greg C, and Ng, Lawrence C. Tue .
"System and method for characterizing, synthesizing, and/or canceling out acoustic signals from inanimate sound sources". United States. https://www.osti.gov/servlets/purl/918093.
@article{osti_918093,
title = {System and method for characterizing, synthesizing, and/or canceling out acoustic signals from inanimate sound sources},
author = {Holzrichter, John F and Burnett, Greg C and Ng, Lawrence C},
abstractNote = {A system and method for characterizing, synthesizing, and/or canceling out acoustic signals from inanimate sound sources is disclosed. Propagating wave electromagnetic sensors monitor excitation sources in sound producing systems, such as machines, musical instruments, and various other structures. Acoustical output from these sound producing systems is also monitored. From such information, a transfer function characterizing the sound producing system is generated. From the transfer function, acoustical output from the sound producing system may be synthesized or canceled. The methods disclosed enable accurate calculation of matched transfer functions relating specific excitations to specific acoustical outputs. Knowledge of such signals and functions can be used to effect various sound replication, sound source identification, and sound cancellation applications.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 16 00:00:00 EDT 2007},
month = {Tue Oct 16 00:00:00 EDT 2007}
}
Works referenced in this record:
Study of selected properties of magnesium alloy AZ91 after heat treatment and forming
journal, December 2004
- Čížek, L.; Greger, M.; Pawlica, L.
- Journal of Materials Processing Technology, Vol. 157-158