Title:
ABNORMAL NOISE SPECIFICATION DEVICE, ABNORMAL NOISE SPECIFICATION METHOD AND ABNORMAL NOISE SPECIFICATION PROGRAM
Document Type and Number:
Japanese Patent JP2023012335
Kind Code:
A
Abstract:
To provide an abnormal noise specification device, an abnormal noise specification method and an abnormal noise specification program, which precisely specify an abnormal noise by using artificial intelligence.SOLUTION: An abnormal noise specification device includes an arithmetic apparatus and an output device. The arithmetic apparatus performs the steps of: specifying frequency-time data which indicates a time change of a frequency spectrum of sound recorded in a vehicle; designating a first time range and a second time range in the frequency-time data; inputting the frequency-time data to a learned model, allowing the learned model to specify one or a plurality of abnormal noises occurring in the first time range as a first abnormal noise on the basis of the inputted frequency-time data, and allowing the learned model to specify one or a plurality of abnormal noises occurring in the second time range as a second abnormal noise on the basis of the inputted frequency-time data; and allowing the output device to output a type of the first abnormal noise which is not matched with a type of the second abnormal noise in the first abnormal noise.SELECTED DRAWING: Figure 3
Inventors:
UEDA YU
Application Number:
JP2021115923A
Publication Date:
January 25, 2023
Filing Date:
July 13, 2021
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
G10L25/51; G10L25/18
Attorney, Agent or Firm:
Patent Attorney Corporation Kaiyu International Patent Office
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