Title:
MODE DECOMPOSITION DEVICE, MODE DECOMPOSITION METHOD, AND PROGRAM
Document Type and Number:
Japanese Patent JP2019159018
Kind Code:
A
Abstract:
To provide a mode decomposition device capable of mode decomposition satisfying causality and complete reconfigurability without changing an amplitude envelope.SOLUTION: The mode decomposition device is a least square problem concerning; a Hadamard product of an inverse characteristic of an amplitude response of a filter which decomposes a musical sound signal into each mode and a frequency component of each mode; and a frequency component of the musical sound signal. The musical sound signal is decomposed into each mode by solving a constrained least square problem with the restriction of satisfying a complete reconfigurability and causality.SELECTED DRAWING: Figure 1
Inventors:
OIKAWA YASUHIRO
YATABE KOHEI
KUSANO TSUBASA
MASUYAMA YOSHIKI
MIYAGI YUSUKE
TAKAHASHI TAKESHI
OISHI KOJI
YATABE KOHEI
KUSANO TSUBASA
MASUYAMA YOSHIKI
MIYAGI YUSUKE
TAKAHASHI TAKESHI
OISHI KOJI
Application Number:
JP2018043193A
Publication Date:
September 19, 2019
Filing Date:
March 09, 2018
Export Citation:
Assignee:
UNIV WASEDA
KORG INC
KORG INC
International Classes:
G10G1/00; G10L25/27; G10L25/48
Domestic Patent References:
| JP2008209549A | 2008-09-11 | |||
| JP2016123841A | 2016-07-11 | |||
| JPH0239197A | 1990-02-08 | |||
| JP2013250357A | 2013-12-12 |
Other References:
升山義紀 他: ""交互方向乗数法を用いたモード分解による楽器音の解析"", 日本音響学会2018年春季研究発表会講演論文集CD-ROM, JPN6021038067, 27 February 2018 (2018-02-27), pages 793 - 794, ISSN: 0004607380
Attorney, Agent or Firm:
Naoki Nakao
Yukio Nakamura
Yoshimura Munehiro
Yukio Nakamura
Yoshimura Munehiro