Casio Computer Co., Ltd.

Ryutaro Hayashi

Kazutaka Kasuga

Yuji Tabata

Keiichi Sakurai

Goro Sakata

Kohtaro Hanzawa

Chihiro Toyama

Kikuji Tanaka

Naotaka Uehara

Hiroko Okuda

Eiichi Harada

Katsutoshi Sakai

A detection device including n number of sensors arrayed in a direction, in which n is an integer of 3 or more and from which (n&#x2212;1) pairs of adjacent sensors are formed, and a processor which determines one specified position in the direction based on output values of the n number of sensors, in which the processor calculates (n&#x2212;1) sets of difference values each of which is a difference between two output values corresponding to each of the (n&#x2212;1) pairs of sensors, and determines the one specified position based on the (n&#x2212;1) sets of difference values and correlation positions corresponding to the (n&#x2212;1) sets of difference values and indicating positions correlated with array positions of each pair of sensors.

Detection device for detecting operation position

An electronic wind instrument according to one aspect of the present invention includes a plurality of performance keys for specifying pitches, a breath sensor which detects at least a breath input operation, and a controller (CPU), wherein the controller (CPU) selectively switches between a first mode of outputting first sound waveform data generated on the basis of the breath input operation and operation of at least one performance key from among the plurality of performance keys, and a second mode of, when the breath input operation is detected, outputting second sound waveform data based on musical piece data regardless of whether operation of the at least one performance key is detected or is not detected.

Electronic wind instrument, method of controlling electronic wind instrument, and storage medium storing program for electronic wind instrument

In the preset invention, in an initial stationary state of a drumstick section, a CPU stores each axis component of geomagnetism obtained by a magnetic sensor in a RAM, and obtains each axis component of geomagnetism obtained by the magnetic sensor which is changed by a motion provided to the drumstick section at every predetermined timing. Then, the CPU accumulates each axis component of geomagnetism obtained at every predetermined timing, for each predetermined interval, and conforms each axis component of geomagnetism accumulated thereby to each axis component of geomagnetism stored in the RAM.

Orientation detection device, orientation detection method and program storage medium

In the preset invention, in an initial stationary state of a drumstick section, a CPU stores acceleration that occurs due to gravity and is obtained by an acceleration sensor in a RAM, obtains, at every predetermined timing, acceleration that occurs due to a motion provided to the drumstick section and is obtained by the acceleration sensor at a predetermined timing, accumulates the accelerations each obtained at the predetermined timing for each predetermined interval, and conforms the accelerations obtained by accumulation to the acceleration stored in the RAM.

The present invention provides a reed for an electronic musical instrument and an electronic musical instrument in which determination of lip position is not susceptible to the influence of noise and the like. In one embodiment of the present invention, an electronic musical instrument is provided with a reed and a plurality of sensor electrodes in the reed, arranged next to one another from a tip side of the reed towards a base side of the reed, each of the sensor electrodes having a center portion projecting towards the tip side of the reed. The lip position of the performer is determined in accordance with the output from the plurality of sensors.

Reed for electronic musical instrument, and electronic musical instrument

An electronic musical instrument includes: a contact sensor that generates lip detection information from an operation by a performer; and a controller that derives a lip contact area from the lip detection information generated by the contact sensor, and performs musical note control of an electronic sound source in accordance with the derived lip contact area.

Electronic wind instrument

A sensor obtains an angular rate of a stick member. A sound source map includes plural areas disposed in a virtual space. CPU presumes a direction of a turning axis of the stick member based on the angular rate obtained by the sensor, while a user is operating the stick member, calculates an angular rate of a top of the stick member based on the angular rate obtained by the sensor with the angular rate in the longitudinal direction of the stick member removed, calculates a position of the holding member in the virtual space after a predetermined time, based on the recent direction of the turning axis of the stick member and recent angular rate of the top of the stick member, and sends a sound generating unit a note-on event of a musical tone assigned to an area corresponding to the calculated position among the plural areas.

Playing apparatus, method, and program recording medium

A CPU () of a musical instrument () calculates distances between central positions of a plurality of virtual pads () and a position of a marker unit (), by making adjustment such that a distance is shorter as a size associated with the virtual pad () is larger. The CPUidentifies a virtual pad () corresponding to the shortest distance among the distances calculated, as a virtual pad () for outputting sound. The CPU () identifies a tone corresponding to the virtual pad () for outputting sound by referring to set layout information.

Musical instrument, method of controlling musical instrument, and program recording medium

Data representing the actual performance presented by a player is analyzed on the basis of given model performance data. Data of the virtual performance played by a virtual competitor is generated in accordance with the analysis result. Automatic performance based on the virtual performance data enables the player to compare his/her performance with the performance of the virtual competitor. Thus, the player can compete with the virtual competitor or compare his/her musical technique with that of the virtual performer even if the player practices the performance alone.

Performance supporting apparatus, method of supporting performance, and

Using stored discrete samples of filter coefficients at each of a plurality of discrete operating points, a filter control (e.g., CPU) provides dynamic control of a digital filter through an interpolator in accordance with a variable input indicative of a desired operating point (e.g., cutoff frequency) of the digital filter. In response to a large change in the desired operating point, the control produces a succession of operating point subgoals progressively approaching the changed desired operating point and a corresponding succession of filter coefficient subgoals. Each filter coefficient subgoal is calculated as a function of stored discrete filter coefficient samples near each operating point subgoal. In response to a new parameter set from the filter control, containing a new subgoal of the coefficients, the interpolator starts coefficient interpolating to smoothly move the operating point of the digital filter toward the new subgoal. By starting the interpolating operations after the updating of the parameter set has been completed, synchronization may be established among the interpolating operations on the coefficients.

Digital filter system with changeable cutoff frequency

Filter coefficients corresponding to a plurality of discrete cutoff frequencies are stored in advance in a memory and a filter coefficient corresponding to a specified cutoff frequency is generated by performing an interpolation referring to the filter coefficients stored in the memory, thereby saving the capacity of the memory. When a resonance index is to be specified in addition to the cutoff frequency, filter coefficients corresponding to two difference resonance indexes are acquired by the interpolation, then a new filter coefficient is acquired by executing the interpolation referring to these two filter coefficients.

Digital filter with dynamically variable filter characteristics

Using stored discrete samplers of filter coefficients at each of a plurality of discrete operating points, a filter control (e.g., CPU) provides dynamic control of a digital filter through an interpolator in accordance with a variable input indicative of a desired operating point (e.g., cutoff frequency) of the digital filter. In response to a large change in the desired operating point, the control produces a succession of operating point subgoals progressively approaching the changed desired operating point and a corresponding succession of filter coefficient subgoals. Each filter coefficient subgoal is calculated as a function of stored discrete filter coefficient samples near each operating point subgoal. In response to a new parameter set from the filter control, containing a new subgoal of the coefficients, the interpolator starts coefficient interpolating to smoothly move the operating point of the digital filter toward the new subgoal. By starting the interpolating operations after the updating of the parameter set has been completed, synchronization may be established among the interpolating operations on the coefficients.

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Hamura, Japan

Ryutaro Hayashi