Characterizing, synthesizing, and/or canceling out acoustic signals from sound sources
- Berkeley, CA
- Danville, CA
A system for characterizing, synthesizing, and/or canceling out acoustic signals from inanimate and animate sound sources. Electromagnetic sensors monitor excitation sources in sound producing systems, such as animate sound sources such as the human voice, or from 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 systems disclosed enable accurate calculation of 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.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-7405-ENG-48
- Assignee:
- The Regents of the University of California (Oakland, CA)
- Patent Number(s):
- 7,191,105
- Application Number:
- 10/350,393
- OSTI ID:
- 902631
- Country of Publication:
- United States
- Language:
- English
Active Noise Control
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book | April 1997 |
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System and method for characterizing synthesizing and/or canceling out acoustic signals from inanimate sound sources
System and method for characterizing, synthesizing, and/or canceling out acoustic signals from inanimate sound sources