Yamaha Corporation

Michiko Tanoue

Ichiro Osuga

Kenichi Nishida

Jun Ishii

Yasuhiko Oba

Akihiko Komatsu

Fukutaro Okuyama

An instrument playing apparatus has: a movable member configured to be displaced responsive to a playing operation of a user; a detection part formed from a magnetic or conductive body and disposed on the movable member; and a filter that includes a coil. The filter has a frequency response that changes depending on a distance between the detection part and the coil, and generates a detection signal from a reference signal.

Instrument playing apparatus

A sound signal generation method for a keyboard including a pedal and a key, the method according to an embodiment of the present disclosure comprises generating a first sound signal and a second sound signal different from the first sound signal based on first operation data corresponding to an operation of the key, and adjusting a relationship between the first sound signal and the second sound signal to sound at respective timings according to a physical quantity of a key pressing operation of the key to control a decay rate of the first sound signal to be different from a decay rate of the second sound signal based on a key release operation of the key.

Sound signal generation device, keyboard instrument and sound signal generation method

A sound source includes: a processor that implements instructions to execute a plurality of tasks, including: a first calculating task that calculates a first estimated value based on a detection result yielded by a detecting device that detects passage of a key through a first, a second, and a third positions, the first estimated value pertaining to behavior of the key at a predetermined position; a second calculating task that calculates a second estimated value based on the result, the second estimated value pertaining to behavior of the key at a fourth position; a signal generating task that generates a first and a second sound signals; a first adjusting task that adjusts an output level of the first sound signal based on the first estimated value; and a second adjusting task that adjusts an output level of the second sound signal based on the second estimated value.

Sound source, keyboard musical instrument, and method for generating sound signal

An electronic musical instrument according to one embodiment includes: a sound source configured to generate a first sound signal and a second sound signal in accordance with an instruction signal for instructing to produce a sound; a first output unit configured to output a third sound signal containing the first sound signal and the second sound signal at a first sound volume ratio; and a second output unit configured to output a fourth sound signal containing the first sound signal and the second sound signal at a second sound volume ratio that is different from the first sound volume ratio.

Electronic musical instrument

A reaction force generation unit includes an opposing member and a pressed body, which includes a base and domes, including a first dome, a second dome, and a third dome, bulging from the base. A leading end of each dome faces an opposing surface of the opposing member. When the pressing member presses the base, the leading ends of the domes move in a direction relatively close to the opposing member, where the domes become elastically deformed and cause an appropriate reaction force with respect to the handle. In a natural state where the pressed body is not subjected to any pressing force, axes of the domes are substantially parallel to each other, and acute angles formed by the axes and a normal line of the opposing surface are substantially similar to each other at a predetermined angle larger than zero degree.

Reaction force generation unit

Provided is a switching device for an electronic musical instrument, comprising: a plurality of first electrodes that are adjacently arranged; a second electrode arranged between a pair of the plurality of first electrodes, and insulated from the plurality of first electrodes by a plurality of spaces; a rotatable actuator; and a conductive member configured to electrically connect the first electrodes and the second electrode according to rotation of the actuator. The plurality of spaces extend longitudinally in a first direction. The first direction is a direction between a rotational shaft direction of the actuator and a direction orthogonal to the rotational shaft direction.

Switching device for electronic musical instrument

A sound signal generation device according to one embodiment includes a memory storing instructions, and a processor that implements the instructions and execute a plurality of tasks, including a signal generation task that generates a sound signal based on first operation data corresponding to an operation to a key, and an attenuation control task that controls an attenuation velocity of the sound signal to one of a first velocity or a second velocity that is faster than the first velocity, based on the first operation data, and second operation data corresponding to an operation to a pedal, wherein the attenuation control task varies a value of the second velocity based on an operation velocity of the key included in the first operation data to control the attenuation velocity of the sound signal to the second velocity.

Sound signal generation device, keyboard instrument, and sound signal generation method

A sound output device comprising a data storage device storing a first sound signal, a second sound signal, and a third sound signal and a controller including a processor that implements instructions stored in a memory to execute a plurality of tasks, including a sound signal output tasks that reads the first and second sound signals or the first and third sound signals from the data storage device based on first information included in an instruction signal that instructs outputting of sound, the first information designating a magnitude of the sound and outputs the read sound signals.

Sound output device and non-transitory computer-readable storage medium

A signal supply device according to an embodiment of the present invention includes a generator configured to generate a first sound signal and a second sound signal in accordance with an instruction signal including operation body information corresponding to an operation input to an operation body and linked member information corresponding to a movement of a linked member linked with the operation body and an adjuster configured to adjust a relationship between the first sound signal and the second sound signal on the basis of the operation body information and the linked member information.

Signal supply device, keyboard device and non-transitory computer-readable storage medium

A signal supply device according to an aspect of the present invention includes a generator configured to generate a first sound signal and a second sound signal in accordance with an instruction signal corresponding to an operation input to an operation body and an adjuster configured to calculate an acceleration of the operation body in accordance with the instruction signal and to adjust a relationship between the first sound signal and the second sound signal on the basis of the acceleration.

A keyboard apparatus includes a frame including a first contacting portion, a second contacting portion, and a first rib, a first member having a first side and a second side opposite to the first side and being attached to the frame, and a plurality of keys being attached to the frame, the first contacting portion being in contact with the first member from the first side, the second contacting portion being in contact with the first member from the second side, the first rib having longitudinal shape in a first direction, and the first contacting portion in the first direction with respect to the first rib.

Keyboard apparatus and frame

A to-be-depressed member includes an elastic dome. A sectional shape of the dome orthogonal to an axis line (X) of the dome is line-symmetric about a symmetry axis (Ax). The dome has a three-dimensional shape that is symmetric with respect to a virtual plane (Sx) containing the symmetry axis and the axis line. During a swinging movement responsive to a depressing operation, an opposed surface of an opposed member relatively approaches and contacts a distal end of the dome to deform the dome so as to generate a reactive force. As for an angle defined between the axis line of the dome and a normal line (X) of the opposed surface, the angle (&#x3b8;) in an initial state falls in a range from a first angle variation amount from the initial state to a first-contact state to a second angle variation amount from the initial state to a depression-completed state.

Reactive force generation device

An electronic musical instrument includes a frame and a plate-shaped member attached to the frame. The frame includes a first rib extending in a first direction; a second rib being arranged on a second direction side intersecting the first direction with respect to the first rib and extending in the first direction; a first wall portion extending in the second direction and connecting the first rib and the second rib; a second wall portion facing the first wall portion and extending in the second direction; an extending portion being arranged on the first wall portion and being bendable toward the first direction; a first projecting portion projecting from the extending portion toward the second wall portion; and a second projecting portion projecting from the second wall portion toward the first wall portion.

Electronic musical instrument, keyboard apparatus and frame

A keyboard musical instrument is provided in which variations in the detection mechanism is corrected so that an appropriate musical sound control can be performed. Detection sections SW, SW, and SWdetect an object at detection positions pSW, pSW, and pSW. On the basis of a detection timing (rT) by the detection section SW, a detected key depression speed (V), and a detection timing (rT) by the detection section SWin a case where the key is depressed in a derivation mode, after a rSTvalue is calculated, a stroke correction value calSTis derived as correction information J and stored in a memory. In the performance mode, the musical sound is controlled on the basis of the detection timing by the detection sections SW, SW, and SWand the stroke correction value calST

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Hamamatsu, Japan

Michiko Tanoue