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Title: 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:
 [1];  [2];  [3]
  1. (Berkeley, CA)
  2. (Livermore, CA)
  3. (Danville, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
875145
Patent Number(s):
6542857
Assignee:
The Regents of the University of California (Oakland, CA) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; characterizing; synthesizing; andor; canceling; acoustic; signals; inanimate; sound; sources; disclosed; propagating; wave; electromagnetic; sensors; monitor; excitation; producing; systems; machines; musical; instruments; structures; acoustical; output; monitored; information; transfer; function; generated; synthesized; canceled; methods; enable; accurate; calculation; matched; functions; relating; specific; excitations; outputs; knowledge; effect; replication; source; identification; cancellation; applications; acoustic signal; /703/704/702/

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., 2003. 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. Wed . "System and method for characterizing synthesizing and/or canceling out acoustic signals from inanimate sound sources". United States. https://www.osti.gov/servlets/purl/875145.
@article{osti_875145,
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 = {2003},
month = {1}
}

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