Title:
SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2019/239723
Kind Code:
A1
Abstract:
The present invention heightens the accuracy of compensation pertaining to clip compensation when an echo cancellation process is applied to signals from a plurality of microphones. A signal processing device according to the present feature is provided with: an echo cancellation unit that applies, to signals from a plurality of microphones, an echo cancellation process for canceling an output signal component attributable to a speaker; a clip detection unit that detects clipping in the signals from the plurality of microphones; and a clip compensation unit that compensates a clipped-microphone signal after the echo cancellation process on the basis of unclipped-microphone signals.
Inventors:
TATEISHI KAZUYA (JP)
TAKAHASHI SHUSUKE (JP)
TAKAHASHI AKIRA (JP)
OCHIAI KAZUKI (JP)
OIKAWA YOSHIAKI (JP)
TAKAHASHI SHUSUKE (JP)
TAKAHASHI AKIRA (JP)
OCHIAI KAZUKI (JP)
OIKAWA YOSHIAKI (JP)
Application Number:
PCT/JP2019/017047
Publication Date:
December 19, 2019
Filing Date:
April 22, 2019
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
H04R3/02; G10L15/20; G10L15/28; G10L21/0208; H04R1/40; H04R3/00
Foreign References:
| JP2017011541A | 2017-01-12 | |||
| JP2012093641A | 2012-05-17 | |||
| JP2010245657A | 2010-10-28 | |||
| JP2005065217A | 2005-03-10 | |||
| US20160205263A1 | 2016-07-14 | |||
| JP2010245657A | 2010-10-28 |
Other References:
See also references of EP 3806489A4
Attorney, Agent or Firm:
IWATA, Masanobu et al. (JP)
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