Title:
ESTIMATION METHOD, ESTIMATION PROGRAM, DEEP NEURAL NETWORK AND ESTIMATION DEVICE
Document Type and Number:
Japanese Patent JP2023030771
Kind Code:
A
Abstract:
To enable operations for acoustic signal restoration that take into account an algebraic structure of complex numbers.SOLUTION: A DNN consists of a plurality of gated complex convolution layers 1000-1002 and a complex convolution layer 1003 that performs convolution operations on an output of the gated complex convolution layer 1002. Each of the gated complex convolution layers 1000-1002 consists of a complex convolution layer 1004 that performs convolution operations of the complex spectrogram, an amplitude gating layer 1005 that selects out only regions that need correction of the complex spectrogram using the complex spectrogram and an amplitude spectrogram A of a desired acoustic signal as inputs, and a multiplication section 1006 that outputs a result of element-by-element multiplication of the output of the complex convolution layer 1004 and the output of the amplitude gating layer 1005.SELECTED DRAWING: Figure 1
Inventors:
KOIZUMI YUMA
YASUDA MASAHIRO
YATABE KOHEI
MASUYAMA YOSHIKI
YASUDA MASAHIRO
YATABE KOHEI
MASUYAMA YOSHIKI
Application Number:
JP2021136088A
Publication Date:
March 08, 2023
Filing Date:
August 24, 2021
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE
International Classes:
G10L25/03; G10L25/30
Attorney, Agent or Firm:
Shigeki Yamakawa
Yuzo Koike
Masaki Yamakawa
Motoyama Yasushi
Yuzo Koike
Masaki Yamakawa
Motoyama Yasushi