Title:
SIGNAL PROCESSING DEVICE AND METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2018/163810
Kind Code:
A1
Abstract:
The present technology relates to a signal processing device and method, and a program capable of improving noise canceling performance. The signal processing device includes: a noise detection unit for detecting the noise generated within a control region created by a microphone array; and a control unit for controlling the update of the filter coefficient for an adaptive filter used to generate the signal for a sound output from a speaker array on the basis of detecting noise generated within the control region to reduce the external noise generated by the speaker array toward a noise-canceling region. The present technology is applicable to a spatial noise control device.
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Inventors:
MAENO YU (JP)
MITSUFUJI YUHKI (JP)
MITSUFUJI YUHKI (JP)
Application Number:
PCT/JP2018/006112
Publication Date:
September 13, 2018
Filing Date:
February 21, 2018
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
G10K11/178; G10K11/34; H04R1/40
Foreign References:
| JP2016145963A | 2016-08-12 | |||
| JPH06102886A | 1994-04-15 |
Other References:
CHRISTIAN KLEINHENRICHDETLEF KRAHE: "The Reflection Equivalence Formulation for a circular ANC System", PROCEEDINGS OF INTER-NOISE 2016, 2016
MORGAN D.R.: "An analysis of multiple correlation cancellation loops with a filter in the auxiliary path", IEEE TRANS. ACOUST. SPEECH SIGNAL PROCESS., ASSP, vol. 28, no. 4, 1980, pages 454 - 467, XP000601783, doi:10.1109/TASSP.1980.1163430
MEYERJENSGARY ELKO: "Acoustics, Speech, and Signal Processing (ICASSP), 2002 IEEE International Conference", vol. 2, 2002, IEEE, article "A highly scalable spherical microphone array based on an orthonormal decomposition of the soundfield"
SAMARASINGHE, PRASANGA N. ET AL.: "2013 IEEE International Conference on Acoustics, Speech and Signal Processing", 2013, IEEE, article "3D soundfield reproduction using higher order loudspeakers"
See also references of EP 3594937A4
MORGAN D.R.: "An analysis of multiple correlation cancellation loops with a filter in the auxiliary path", IEEE TRANS. ACOUST. SPEECH SIGNAL PROCESS., ASSP, vol. 28, no. 4, 1980, pages 454 - 467, XP000601783, doi:10.1109/TASSP.1980.1163430
MEYERJENSGARY ELKO: "Acoustics, Speech, and Signal Processing (ICASSP), 2002 IEEE International Conference", vol. 2, 2002, IEEE, article "A highly scalable spherical microphone array based on an orthonormal decomposition of the soundfield"
SAMARASINGHE, PRASANGA N. ET AL.: "2013 IEEE International Conference on Acoustics, Speech and Signal Processing", 2013, IEEE, article "3D soundfield reproduction using higher order loudspeakers"
See also references of EP 3594937A4
Attorney, Agent or Firm:
NISHIKAWA Takashi et al. (JP)
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