Title:
音声信号変換モデル学習装置、音声信号変換装置、音声信号変換モデル学習方法及びプログラム
Document Type and Number:
Japanese Patent JP7368779
Kind Code:
B2
Abstract:
Provided is a sound signal conversion model learning device equipped with a learning unit which obtains, by a machine learning method, a trained model for converting an input signal that is an inputted sound signal into a sound signal having a higher natural signal degree than the input signal, the natural signal degree indicating the degree of similarity to a natural signal that is a sound actually emitted by an animal. The machine leaning method is a method wherein a first generation unit which performs forward conversion processing, which is a conversion for increasing the natural signal degree, on the inputted sound signal to output a forward conversion signal having a higher natural signal degree than the sound signal, a first identification unit which identifies whether an inputted signal is a forward conversion signal or a natural signal, a second generation unit which performs reverse conversion processing, which is a conversion for decreasing the natural signal degree, on an inputted sound signal to output a reverse conversion signal having a lower natural signal degree than the sound signal, and a second identification unit which identifies whether an inputted signal is a preliminary synthesized signal that is a preliminarily prepared signal and a synthesized signal, or a reverse conversion signal, learn on the basis of identification results of the first identification unit and the second identification unit.
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Inventors:
Hiroshi Tanaka
Hirokazu Kameoka
Takuhiro Kaneko
Nobukatsu Hojo
Hirokazu Kameoka
Takuhiro Kaneko
Nobukatsu Hojo
Application Number:
JP2022511494A
Publication Date:
October 25, 2023
Filing Date:
April 03, 2020
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
G10L21/007; G10L13/06; G10L25/30
Domestic Patent References:
| JP2019101391A | ||||
| JP202027193A | ||||
| JP2019144404A |
Foreign References:
| CN110246488A |
Other References:
房福明他,CycleGANを用いた高品質なノンパラレル声質変換,電子情報通信学会技術研究報告,2017年12月21日,Vol.2017-SLP-119, No.9,pp.37-42
Attorney, Agent or Firm:
Patent Attorney Shiga International Patent Office