Title:
ACOUSTIC SIGNAL PROCESSING DEVICE, METHOD FOR ACOUSTIC SIGNAL PROCESSING, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2020/121860
Kind Code:
A1
Abstract:
Provided is an acoustic signal processing technology such that after signal conversion appropriate for desired signal processing (for example, sound source enhancement processing) is performed, desired signal processing is performed on a converted signal. An acoustic signal processing device performs signal processing M for a desired purpose on an input acoustic signal x. The acoustic signal processing device comprises: a conversion unit for performing conversion processing P on an acoustic signal x to obtain a first conversion coefficient X; a signal processing unit for performing signal processing M corresponding to a desired purpose on the first conversion coefficient X to obtain a second conversion coefficient ^S; and a reverse conversion unit for performing reverse conversion processing P-1 on the second conversion coefficient ^S to obtain an acoustic signal ^S that has been subjected to the signal processing for the desired purpose. The conversion processing P, the reverse conversion processing P-1, and the signal processing M are simultaneously optimized.
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Inventors:
KOIZUMI YUMA (JP)
HARADA NOBORU (JP)
HARADA NOBORU (JP)
Application Number:
PCT/JP2019/046934
Publication Date:
June 18, 2020
Filing Date:
December 02, 2019
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G10L21/0232; H03H17/00; G10L21/0264
Foreign References:
| JPH096391A | 1997-01-10 |
Other References:
KOIZUMI, YUMA ET AL.: "TRAINABLE ADAPTIVE WINDOW SWITCHING FOR SPEECH ENHANCEMENT", ARXIV.ORG, 5 November 2018 (2018-11-05), XP055718887, Retrieved from the Internet [retrieved on 20200206]
VENKATARAMANI, S. ET AL.: "END-TO-END SOURCE SEPARATION WITH ADAPTIVE FRONT-ENDS", ARXIV.ORG, 31 October 2017 (2017-10-31), XP055718891, Retrieved from the Internet [retrieved on 20200206]
VENKATARAMANI, S. ET AL.: "END-TO-END SOURCE SEPARATION WITH ADAPTIVE FRONT-ENDS", ARXIV.ORG, 31 October 2017 (2017-10-31), XP055718891, Retrieved from the Internet
Attorney, Agent or Firm:
NAKAO, Naoki et al. (JP)
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