Title:
ECHO SUPPRESSION DEVICE, ECHO SUPPRESSION METHOD, AND ECHO SUPPRESSION PROGRAM
Document Type and Number:
WIPO Patent Application WO/2020/203258
Kind Code:
A1
Abstract:
The present invention can suppress the occurrence of non-linear echos and can also suppress voice degradation. An echo suppression device that suppresses echoes that occur as a result of a voice signal that is outputted from a speaker being inputted into a microphone, wherein a compressor that compresses the portion of a received speech signal that is greater than a first threshold value when a double talk state has been detected is provided on a speech-reception-side signal path that transmits the received speech signal to the speaker.
Inventors:
SATOMI YUKI (JP)
Application Number:
PCT/JP2020/011726
Publication Date:
October 08, 2020
Filing Date:
March 17, 2020
Export Citation:
Assignee:
TRANSTRON INC (JP)
International Classes:
H04R3/02; H04B3/20; H04M1/60
Foreign References:
| US20120307980A1 | 2012-12-06 | |||
| US20150030168A1 | 2015-01-29 | |||
| US20040120271A1 | 2004-06-24 | |||
| US20150011266A1 | 2015-01-08 | |||
| JP2013187810A | 2013-09-19 | |||
| JP2018201147A | 2018-12-20 |
Other References:
See also references of EP 3952335A4
Attorney, Agent or Firm:
SAKATA Yukari (JP)
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