# US 2019/0356291 A1 · Parameter setting device and parameter setting method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0356291 A1 - Document ID: US20190356291A1 - Status: Published application - Kind: A1 - Application number: 16/398,391 - Filed: 2019-04-30 - Published: 2019-11-21 - Earliest claimed: 2018-05-21 - Assignees: Yamaha Corporation - Applicants: Yamaha Corporation - Inventors: Kosuke SAITO; Masaaki OKABAYASHI - Web page: https://patentgrep.com/patent/US20190356291A1 ## CPC - H03G 3/04: in untuned amplifiers - H03G 3/14: in frequency-selective amplifiers - H04H 60/04: Studio equipment; Interconnection of studios - H04R 3/00: Circuits for transducers (arrangements for producing a reverberation or echo sound G10K15/08; amplifiers H03F) - H03G: CONTROL OF AMPLIFICATION - H04H: BROADCAST COMMUNICATION (multiplex communication H04J; pictorial communication aspects of broadcast systems H04N) - H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K) ## Abstract A parameter setting device includes an operator, a scale, a receptor, and a controller. The operator receives parameter changing operation from a user. The scale indicates a reference position of the operator. The receptor receives instructions of turning on a calibration mode. The controller moves the operator to the reference position, when receiving the instructions of turning on the calibration mode. ## Claims ### Claim 1 A parameter setting device comprising: an operator that receives parameter changing operation from a user; a scale that indicates a reference position of the operator; a receptor that receives instructions of turning on a calibration mode; and a controller that moves the operator to the reference position, when receiving the instructions of turning on the calibration mode. ### Claim 2 (depends on 1) The parameter setting device according to claim 1, further comprising a memory that stores a first value used for processing an audio signal, and a second value indicating a current position of the operator, wherein the controller changes the second value to a value corresponding to the reference position, when receiving the instructions of turning on the calibration mode. ### Claim 3 (depends on 2) The parameter setting device according to claim 2, wherein the controller changes the second value to the first value, when receiving instructions of relieving the calibration mode. ### Claim 4 (depends on 1) The parameter setting device according to claim 1, wherein resolution of the scale is reduced as the operator goes away from the reference position. ### Claim 5 (depends on 1) The parameter setting device according to claim 1, further comprising a plurality of the operators, wherein the controller moves the plurality of the operators to the reference position collectively, when receiving the instructions of turning on the calibration mode. ### Claim 6 (depends on 5) The parameter setting device according to claim 5, wherein when receiving the instructions of turning on the calibration mode in a state where the plurality of the operators include an operator whose current position is not the reference position, the controller moves the operator, which is located at a position other than the reference position, to the reference position. ### Claim 7 (depends on 1) The parameter setting device according to claim 1, wherein a plurality of the receptors each correspond to a channel of an audio signal and receive operation of turning on and off the calibration mode for every channel. ### Claim 8 (depends on 1) The parameter setting device according to claim 1, further comprising a signal processor that applies signal processing to an audio signal, wherein the signal processor performs: nonlinear processing in which nonlinear processing is applied to the audio signal; first volume-control processing in which volume is controlled based on a current value of the operator; and second volume-control processing in which, after the nonlinear processing and before the first volume-control processing, volume is controlled such that the volume controlled in the first volume-control processing is compensated by an amount of movement from a reference value of the operator. ### Claim 9 A parameter setting method comprising: receiving instructions of turning on a calibration mode; and moving an operator, which receives operation from a user, to a reference position, when the instructions of turning on the calibration mode are received. ### Claim 10 (depends on 9) The parameter setting method according to claim 9, further comprising: storing a first value used for processing an audio signal, and a second value indicating a current position of the operator; and changing the second value to a value corresponding to the reference position, when the instructions of turning on the calibration mode are received. ### Claim 11 (depends on 10) The parameter setting method according to claim 10, further comprising changing the second value to the first value, when instructions of relieving the calibration mode are received. ### Claim 12 (depends on 9) The parameter setting method according to claim 9, further comprising moving a plurality of the operators to the reference position collectively, when the instructions of turning on the calibration mode are received. ### Claim 13 (depends on 12) The parameter setting method according to claim 12, further comprising when the instructions of turning on the calibration mode are received in a state where the plurality of the operators include an operator whose current position is not the reference position, moving the operator, which is located at a position other than the reference position, to the reference position. ### Claim 14 (depends on 9) The parameter setting method according to claim 9, further comprising receiving operation of turning on and off the calibration mode for every channel. ### Claim 15 (depends on 9) The parameter setting method according to claim 9, further comprising performing: nonlinear processing in which nonlinear processing is applied to an audio signal; first volume-control processing in which volume is controlled based on a current value of the operator; and second volume-control processing in which, after the nonlinear processing and before the first volume-control processing, volume is controlled such that the volume controlled in the first volume-control processing is compensated by an amount of movement from a reference value of the operator.