Title:
推定装置、その方法、およびプログラム
Document Type and Number:
Japanese Patent JP7120573
Kind Code:
B2
Abstract:
To provide an estimation device for restoring a consistent phase spectrum from only an amplitude spectrum by using statistical property of a signal to be restored.SOLUTION: An estimation device comprises an estimation section for estimating a phase spectrogram obtained by bringing an amplitude spectrogram A close to a desired sound signal by associating (i) processing for converting a complex spectrogram in which a phase conflicts with an amplitude into a time waveform and converting the converted time waveform into a complex spectrogram in which the phase does not conflict with the amplitude, (ii) processing for converting the amplitude into a size of the amplitude spectrogram A of the desired sound signal, and (iii) processing for bringing the phase spectrogram close to the desired sound signal on the basis of statistical property of the learning sound signal corresponding to the desired sound signal.SELECTED DRAWING: Figure 1
Inventors:
Yuma Koizumi
Yoshinori Masuyama
Kohei Yatabe
Yoshinori Masuyama
Kohei Yatabe
Application Number:
JP2019014052A
Publication Date:
August 17, 2022
Filing Date:
January 30, 2019
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
Waseda University
Waseda University
International Classes:
G10L25/30
Domestic Patent References:
| JP2019139102A |
Attorney, Agent or Firm:
Naoki Nakao
Yukio Nakamura
Munehiro Yoshimura
Yukio Nakamura
Munehiro Yoshimura