	US 11,996,073 B2
	Masking sound adjustment method and masking sound adjustment device
Shinichi Kato, Hamamatsu (JP)
Assigned to YAMAHA CORPORATION, Hamamatsu (JP)
Filed by YAMAHA CORPORATION, Hamamatsu (JP)
Filed on Dec. 13, 2022, as Appl. No. 18/080,087.
Application 18/080,087 is a continuation of application No. PCT/JP2021/027280, filed on Jul. 21, 2021.
Claims priority of application No. 2020-134495 (JP), filed on Aug. 7, 2020.
Prior Publication US 2023/0112517 A1, Apr. 13, 2023
Int. Cl. G10K 11/175 (2006.01); G10K 11/178 (2006.01)

CPC G10K 11/1754 (2020.05) [G10K 11/1781 (2018.01)]

15 Claims

8. A masking sound adjustment device comprising: a memory configured to store computer-readable instructions; and a processor configured to execute the computer-readable instructions stored in the memory to implement; a volume adjustment amount calculation unit configured to obtain, in each of a plurality of frequency bands, a volume adjustment amount of a masking sound with respect to a volume of a conversation sound to be masked, based on a threshold value corresponding to a target word intelligibility of the conversation sound to be masked; and a volume adjustment unit configured to adjust a volume of the masking sound in each of the plurality of frequency bands based on the volume adjustment amount.