Abstract: Methods and apparatus to measure and analyze vibration signatures are disclosed. In some examples, a meter is provided comprising a waveform generator to generate a waveform based on first distance measurements of an object. In some examples, the meter includes a waveform generator to determine a first vibration characteristic of the object based on the waveform. In some examples, the meter includes a comparator to compare the first vibration characteristic to a signature vibration characteristic of the object, the signature vibration characteristic of the object indicative of normal characteristics of the object. In some examples, the meter includes a reporter to, in response to determining the first vibration characteristic does not match the signature vibration characteristic, generate an alert.

Abstract: This disclosure provides a transducer apparatus for an edge-blown aerophone, the edge-blown aerophone having an aerophone embouchure hole. An aerophone speaker delivers sound to a resonant chamber of the aerophone via the aerophone embouchure hole. An aerophone microphone receives, via the aerophone embouchure hole, sound in the resonant chamber. A housing provides a lip plate with a housing embouchure hole independent and separate from the aerophone embouchure hole. Breath sensors sense breath applied across the housing embouchure hole. An electronic processor, connected to the speaker, receives signals from the microphone and the breath sensors. The breath sensors provide signals indicative of breath strength. The electronic processor generates an excitation signal which is delivered as an acoustic excitation signal to the resonant chamber by the aerophone speaker. The electronic processor uses the signals it receives to determine a desired musical note which a player of the aerophone wishes to play.

Abstract: An electronic drum with active crosstalk detection includes a first vibration transducer configured to generate a first signal in response to a strike to the electronic drum, and a second vibration transducer configured to generate a second signal in response to vibrations in a mount coupled to the electronic drum. A circuit compares an amplitude of the first signal and an amplitude of the second signal within a predetermined time, and determines whether the signal was generated by crosstalk or an actual drum hit based on various criteria.

Abstract: A keyboard device for an electronic keyboard instrument, capable of suppressing bouncing of a hammer returning to its original position. A key extends in a front-rear direction swingably about a balance rail pin. The hammer is formed vertically pivotally movable between initial and pivotally-moved positions about a hammer fulcrum provided near a rear end of the key and is placed on the key via a key contact portion in contact with a rear end of upper surface of the key from above, for pivotal motion by swinging of the key. A hammer cushion is provided on upper surface of the key at a predetermined location forward of the key contact portion to suppress bouncing of the hammer by contact with a cushion contact portion of the hammer returning from the pivotally-moved position to the initial position by releasing the key depression.

Abstract: A noise eliminator to eliminate electrical hum from an amplified musical instrument is provided. An aspect provides a method of playing an electrically amplified musical instrument having a sound pickup system that is electrically grounded, including, but not limited to, the steps of: disposing a first connector to the skin of a player of the amplified musical instrument, wherein the connector has least two oppositely disposed sides, and wherein the first disposed side removably adheres to the skin of the player and the second disposed side permits an electrical connection to be made with the player's skin; disposing a second connector that is electrically connected to the electrical ground of the sound pickup system; and establishing an electrical connection between the first connector and the second connector. Other aspects are described and claimed.

Abstract: A device is provided as part of a system, the device being for capturing vibrations produced by an object such as a musical instrument. Via a fixation element, the device is fixed to a drum. The device has a sensor spaced apart from a surface of the drum, located relative to the drum, and a magnet adjacent the sensor. The fixation element transmits vibrations from its fixation point on the drum to the magnet. Vibrations from the surface of the drum and from the magnet are transmitted to the sensor. A method may further be provided for interpreting an audio input, such as the output of the sensors within the system, the method comprising identifying an audio event or grouping of audio events within audio data, generating a model of the audio event that includes a representation of a timbre characteristic, and comparing that representation to expected representations.

Abstract: A device is provided as part of a system, the device being for capturing vibrations produced by an object such as a musical instrument. Via a fixation element, the device is fixed to a drum. The device has a sensor spaced apart from a surface of the drum, located relative to the drum, and a magnet adjacent the sensor. The fixation element transmits vibrations from its fixation point on the drum to the magnet. Vibrations from the surface of the drum and from the magnet are transmitted to the sensor. A method may further be provided for interpreting an audio input, such as the output of the sensors within the system, the method comprising identifying an audio event or grouping of audio events within audio data, generating a model of the audio event that includes a representation of a timbre characteristic, and comparing that representation to expected representations.

Abstract: As part of a system, a device is provided as part of a system, the device being for capturing vibrations produced by an object such as a musical instrument. The device has a first sensor placed in contact with a surface of the drum, such as a rim of the drum, and a second sensor placed at a fixed location relative to the drum, but not touching the drum. A method may be provided for interpreting the output of the sensors within the system, the method comprising identifying the onset of an audio event in audio data, selecting a window in the data for analysis, applying transforms to generate a representation of the audio event, and comparing that representation to expected representations in a model.

Abstract: Devices and methods for capacitively sensing key cap position during the initial and latter stages of a keystroke. A key assembly includes a stationary key guide magnet, a movable key cap magnet, and a transmitter/receiver electrode pair. One or both of the electrodes underlies the key cap. The capacitance change between the electrodes during a keystroke includes the capacitance change between the key cap and the electrode pair, and the change in capacitance between the key cap and the key guide. Key cap position may thus be accurately detected throughout the entire keystroke.

Abstract: A musical instrument (1) includes a stick (10) to be held by a player and provided with a marker (15) at a leading end that emits light and switches off; a camera unit (20) that captures an image of the player holding the stick (10); and a center unit (30) that generates a percussion instrument sound based on a position of the marker (15) while emitting light in image-capture space captured by the camera unit (20), in which the stick (10) causes the marker (15) to emit light under the condition of detecting start of a down swing movement by the player, and causes the marker (15) to switch off under the condition of detecting the end of this movement.

Abstract: In a keyboard apparatus including a key supported for pivoting movement about a pivot point, a mass member that imparts a reaction force to performance operation of the key in interlocked relation to the key, and an electromagnetic actuator provided between the key and the mass member for imparting a driving force to the key and mass member, a transmission member is provided in detachable abutment with the key and mass member. The transmission member can be disengaged from the key or the mass member depending on operating conditions of the key and the mass member. Thus, it is possible to not only prevent unnecessary binding forces from acting in areas where the transmission member and the key and the mass member abut against each other, but also achieve smooth movement of the key and the mass member and prevent increase of inertial mass of the transmission member. The smooth movement of the key and mass member can achieve force sense control with good responsiveness.

Abstract: There is provided a musical tone control system for an electronic keyboard instrument, which is capable of calculating a key depression velocity of a key with high accuracy without being adversely affected by a large rotational resistance of the key during a let-off, and stopping sounding of a musical tone in appropriate timing. The musical tone control system 20 detects first key depression information S1 on a key 3 at a first position P1 corresponding to a key depression depth obtained before start of a let-off, second key depression information S2 on the key 3 at a second position P2 which corresponds to a larger key depression depth than the first position P1 does, and third key depression information S3, obtained after termination of the let-off, on the key at a third position P3 which corresponds to a larger key depression depth than the second position P2 does.

Abstract: In a keyboard apparatus including a key supported for pivoting movement about a pivot point, a mass member that imparts a reaction force to performance operation of the key in interlocked relation to the key, and an electromagnetic actuator provided between the key and the mass member for imparting a driving force to the key and mass member, a transmission member is provided in detachable abutment with the key and mass member. The transmission member can be disengaged from the key or the mass member depending on operating conditions of the key and the mass member. Thus, it is possible to not only prevent unnecessary binding forces from acting in areas where the transmission member and the key and the mass member abut against each other, but also achieve smooth movement of the key and the mass member and prevent increase of inertial mass of the transmission member. The smooth movement of the key and mass member can achieve force sense control with good responsiveness.

Abstract: An electronic percussion instrument can carry out the control of the musical tones that is intended by the performer. The instrument includes electronic controls that set a vibration flag when the instrument is struck and a determination is made as to whether or not a timer has timed a specified time period. If the timer has timed the specified time period, the vibration flag that is stored in the flag memory is reset. If the time period has not been reached, the displacement sensor processing ends and the routine returns to the main processing. In those cases where the vibration flag is not set, or in those cases where the resetting of the vibration flag has completed, a determination is made as to whether or not the upper cymbal has shifted from an open position to the closed position.

Abstract: A foot controlled effects knob controls a variable electronic component. A receptacle couples with a spindle of the variable electronic component. One or more wings extend from the receptacle to facilitate control of the spindle, and thus the variable electronic component, by a user's foot.

Abstract: The present invention relates to a finger musical instrument, including a first glove and a second glove, some performance keys distributed on a fingertip of each of the gloves, and a sound box positioned at each of the gloves. The finger musical instrument further includes a combination key positioned at palm heel of each of the gloves. Each of the sound boxes is connected with a controller. The performance key and the combination key on the same glove are all connected with the corresponding controller. Therein the performance key and the combination of the performance key and the combination key of one glove gives out one octave sound, while the performance key and the combination of the performance key and the combination key of the other glove gives out another octave sound. Each of the controllers is provided with a range regulation switch used for making a sound higher or lower by an octave on each of the gloves.

Abstract: A key actuating system (1) of a keyboard musical instrument is provided which helps quickly push the keys by reducing reaction force with respect to force of pushing the keys during manual operation, and which supports a person having less strength to play the keyboard musical instrument. The key actuating system for a keyboard musical instrument generates a sound when a key (3) is pushed including: a pressure detection sensor (11) detecting a pushing pressure on the key; a status detection sensor (13) detecting a movement status of the key: an actuator (15) actuating the key in a pushing direction of the key; and a control portion (19), when the pressure detection sensor detects the pushing pressure and the status detection sensor detects motion of the key, controls operations of the actuator in order to maintain the detected pressure by the pressure detection sensor at a pressure threshold which is in a range larger than 0 and smaller than a pushing pressure on the key which is necessary for making a sound.

Abstract: An electronic keyboard instrument having a keyboard provided with a plurality of keys, a first and a second switches provided corresponding to each key of the keyboard and being sequentially turned on at a time interval corresponding to a key depression speed of the keyboard, a counting unit for counting a count value corresponding to the time interval during which the first and the second switches are sequentially turned on, a correcting unit for correcting the count value or a value corresponding to the count value based on a variation of the time interval, and a velocity conversion unit for converting the corrected value into a velocity, is provided.

Abstract: Disclosed is a piano sound source apparatus for adding a piano sound source providing a plurality of sinusoidal oscillation frequencies and a noise source providing a plurality of noise oscillation frequencies to output a composite tone. The apparatus includes an oscillation control unit that controls the frequency and amplitude of each of sine waves corresponding to the sinusoidal oscillation frequencies on the basis of time, an amplitude control unit that controls the amplitude of each of the sine waves corresponding to the sinusoidal oscillation frequencies in accordance with the intensity of the composite tone, and a mixing-proportion control unit that controls the amplitude of each of the noise oscillation frequencies in accordance with the intensity of the composite tone to control the mixing proportion of the amplitudes of the noise oscillation frequencies and those of the sine waves corresponding to the sinusoidal oscillation frequencies.

Abstract: Membranes for use with capacitive electric musical instrument vibration transducers comprise an acoustically vibrating surface, a vibrating variable capacitor plate made from an electrically conductive material, and means of electrically connecting said vibrating variable capacitor plate to the electric circuitry of a capacitive electric musical instrument vibration transducer. These membranes can be used as drumheads, banjo membranes, and other stretched vibrating surfaces on similar musical instruments. In addition to generating the sound associated with these instruments, these membranes help capacitive electric musical instrument vibration transducers generate a signal describing the emitted sound of the musical instruments they are attached to.

Abstract: A capacitive electric musical instrument vibration transducer contains one or more parallel plate variable capacitors. Each variable capacitor contains one vibrating variable capacitor plate, an electrically conducting surface that comprises, covers, or is embedded within an acoustically emitting vibrating surface on a musical instrument (such as a drumhead or soundboard), and one fixed variable capacitor plate comprising a rigid electrically conducting surface held a fixed distance away. When the instrument is played, the vibrating surface causes vibrations directly (without using airborne sound as an intermediary) in the vibrating variable capacitor plates, thus causing time-varying voltage oscillations in the parallel plate variable capacitors reflecting the vibrational state, and therefore the sound, of the instrument. An electric circuit in the transducer converts these voltage oscillations into the same kinds of signals produced by microphones and magnetic pickups.

Abstract: In a music system, an input unit is manipulated for inputting a signal representative of a performance operation amount rendered by a performer, and an output unit is provided for outputting a music sound in response to the signal fed from the input unit. The input unit has a grip part that is grasped by the performer and shaped to receive a dynamic pressure caused from grasping by the performer for inputting the performance operation amount. A conversion part is provided in the input unit for converting the dynamic pressure applied by the performer into a force acting in a specified direction. A detection part is positioned to align a sensitivity thereof with the specified direction for sensing the force generated by the conversion part and outputting the signal indicative of the performance operation amount in response to the sensed force.

Abstract: A handle for grasping by one hand and a neck with a fingerboard for fingering with the other hand for use by stringed instrument players. The fingerboard is correlated to a section of the fret-board of a conventional stringed instrument such as a guitar, bass, or banjo. The fingerboard has string ridges that provide a pressure-resistant feel to simulate playing the corresponding string instrument. Example embodiments include a fingering device for acoustic guitar players that is a portable, single piece of lightweight, molded foam, a similar fingering device that is correlated to an electric bass, and similar fingering devices that provide audible feedback by producing sounds based on the notes played.

Abstract: A hammer sensor includes a photo-filter plate movable together with a hammer assembly and having a base plate fixed to the hammer shank and an arc pattern formed on the base plate and different in transparency from the base plate, a photo radiating element radiating a light beam toward the arc pattern and a photo detecting element disposed on the optical path of the light beam for converting the amount of transmitted light to an electric signal, wherein the photo-filter plate converts the rotational angle of the hammer assembly to the amount of light incident on the photo detecting element, and makes the photo radiating element and the photo detecting element stationary so that a suitable photo-shield case prevents the photo elements from environmental light.

Abstract: A multimedia keyboard with instrument playing device comprising a case, a connector and flexible protruding plate mounted on one end of the case. A protruding plate can be inserted into an available slot in the multimedia keyboard, providing a signal connection and a flexible clip. Playing elements such as guitar strings, piano keys, or a drumhead are mounted on the exterior of the case. Several series of flexible conducting elements connected to the playing elements are mounted within the case. When the playing elements are struck or plucked, the conducting elements will deform in direct proportion to the amount of force that has been applied. One signal pickup circuit board including several carbon film resistance plates is mounted on the top or bottom of each flexible conducting elements.

Abstract: A keyboard assembly for an electronic musical instrument is provided, which is capable of having touch inputs to a key from a finger of a player reflected in his power of expression with higher fidelity even when the single key is successively depressed to repeatedly generate the same tone. A plurality of mass members are each disposed to be pivotally driven in response to depression of the corresponding key. A support device pivotally supports the keys and the mass members. A plurality of musical tone instruction devices provided respectively for the keys each instruct generation and damping of a musical tone in response to depression of a corresponding key, and are each comprised of a first sensor and a second sensor for generating a key event during a stroke of the corresponding key in response to depression thereof or in response to pivotal movement of the corresponding mass member responsive to the depression of the key.

Abstract: The key actuation system is designed for use with a keyboard instrument of the type that has a key fulcrum which pivotally supports multiple keys. Each key has a front end forward of the fulcrum which is to be depressed by a player, and a rear portion which is positioned rearward of the fulcrum and it pivots upwardly when the front end is depressed. The key actuation system includes a pull solenoid with a coil portion and a piston. When the coil portion of the solenoid is energized, the piston is drawn into the coil portion. The solenoid is mounted such that the coil portion is above one of the keys and behind the key fulcrum. The piston is in mechanical communication with the rear portion of the key so that when the coil portion is energized and the piston is drawn into the coil portion, the rear portion of the key is lifted upwardly.

Abstract: A device which can be used to control a musical performance contains a sensor which outputs an electrical signal. The sensor may be formed by providing a fixed contact and a hollow contact, wherein movement of the device causes the contacts to meet. Other features of the device include a user-adjustable sensitivity feature, a button for starting/stopping, and a sliding switch for sending volume information to the playback devices. The device may be provided as part of a system which includes a score-following apparatus.

Abstract: An electronic instrument which generates sound using a sound generator upon receipt of a trigger signal. Each pad actuator for generating a trigger signal includes first and second actuators for respectively triggering first and second switches which, upon actuation, generate the trigger signal for the sound generator. The pad actuator is mounted so as to rotate in a first direction about a pivot point upon depression by a user. The first actuator is placed closer to the pivot point than the second actuator and is mounted on a floating cantilever beam such that continued depression of the pad actuator in the first direction after actuation of the first switch by the first actuator causes the first actuator to displace in a second direction opposite the first direction while the second actuator continues to rotate in the first direction about the pivot point until the second switch is actuated by the second actuator.

Abstract: A keyboard apparatus for an electronic musical instrument includes a key displacement detection unit. The key displacement detection unit includes a first resilient member, a movable member connected to the first resilient member, a second resilient member connected to the movable member, and a base fixing member connected to the second resilient member. The base fixing member may be directly or indirectly fixed to a keyboard musical instrument so that the key displacement detection unit is mounted to the keyboard musical instrument. A first displacement detection sensor is coupled with the first resilient member for detecting a key depression force in a key depression-release direction, and a second displacement detection sensor is coupled with the second resilient member for detecting a key depression force in a key arrangement direction. Both the first displacement detection sensor and the second displacement sensor are mounted on the key displacement detection unit.

Abstract: A keyboard for an electronic instrument and an electronic piano providing a key touch and a key touch response similar to those of an acoustic piano and stabilizing the key touch response for each key. Two detection positions of a key stroke are detected by a jack tail sensor or a jack sensor by detecting contact of a jack tail equivalent member or a jack equivalent member, before or after a hammer equivalent member disengages from or releases from a jack equivalent member. A time difference between the two positions is not adversely affected by the let-off of the jack equivalent member. Therefore, the positions and the time difference are detected stably for each key. Sound timing and sound intensity are controlled based upon the detected positions and time difference between the positions. Therefore, a key touch response, similar to that of an acoustic piano, can be stably obtained for each key.

Abstract: A keyboard musical instrument includes an acoustic piano for generating acoustic sounds, an electronic system for generating electronic sounds and a silent system for selecting one of the acoustic sounds and the electronic sounds, and the electronic system is equipped with key sensors and hammer sensors so as to determine a loudness of the electronic sound and a timing for a tone-generation from a key position signal or a hammer position signal depending upon a fingering on a keyboard.

Abstract: An musical tone control device, employed by an electronic keyboard instrument, comprises a keyboard frame, a stopper member and a sensor. The keyboard frame is located beneath an arrangement of keys in the keyboard and is provided to support the keys in a vertical direction as well as in a horizontal direction. The key is normally pressed upward by a key-return spring. The stopper member comprises a base part, a flexible part, having flexibility In a selected direction, and an edge portion which are assembled together. The base part is fixed to the keyboard frame. The edge portion of the stopper member provides at least a lower-limit stopper for the key. The sensor is attached to the flexible part so as to sense a deformation of the stopper member in the selected direction. An output of the sensor is used to control a musical tone in terms of a specific musical parameter such as pitch.

Abstract: An electronic musical tone signal controller has a resilient operating member, at least two sensors mounted on the operating member at at least two different positions in the longitudinal direction so as to detect the distortion amount of the operating member, a musical tone control signal generating unit for obtaining a force applied to the operating member and a force-applied position of the operating member in accordance with a signal outputted from each sensor, and generating a control signal corresponding to the obtained force and position, and a musical tone signal generating unit for generating a musical tone signal in accordance with the control signal supplied from the musical tone control signal generating unit. The direction of a force applied to the operating member may be obtained by using signals from the sensors to generate a control signal corresponding to the force direction.

Abstract: An electronic musical instrument includes a key support portion, a plurality of keys pivotally supported on the key support portion, a musical tone signal generator, after sensors, and a musical tone signal control unit. The musical tone signal generator generates a musical tone signal corresponding to each of the plurality of keys. Each after sensor has a plurality of sensors and is arranged in correspondence with the plurality of keys and operated near key depression end positions to for independently generate pieces of key information. The musical signal control unit controls the musical tone signal generator on the basis of the key information.

Abstract: A striker designed to strike or be swung for playing music is provided with a musical sound-initiating command signal-generating device including switching members. When the striker strikes or swings, the switching members perform a switching action which triggers the transmitting of a musical sound-initiating command signal from the musical sound-initiating command signal-generating device. A desired musical sound is produced by a musical sound producing unit in response to the musical sound-initiating command signal. A number of different timbres can be selectively used for a musical tone, by operating a timbre-selecting switch provided on the striker.

Abstract: Disclosed is an electronic musical instrument which comprises: manipulator for defining a manipulation region of at least one dimension and for achieving performance manipulation within the manipulation region; position detector for detecting the position of performance manipulation within the manipulation region; arithmetic operation unit for calculating information pertaining to the direction and velocity of movement from the time change of the position of performance manipulation; tone signal generator for generating a tone signal using the information pertaining to the direction and velocity information as a parameter of controlling the tone signal; and latch unit for latching information pertaining to at least one of the direction and velocity of the movement, wherein the tone signal generator generates a tone signal using said information latched by the latch unit when the latch unit is operated.

Abstract: A control apparatus for an electronic musical instrument or other electronic apparatuses comprises a main body constituting an operation gripping section, a rotary member held in the main body to freely roll on an X-Y plane, a moving amount detector for detecting moving amounts of the rotary member in X- and Y-directions upon rolling of the rotary member, and a pressure detector for detecting a pressure effected on the main body. The control apparatus inputs control signals to a control object on the basis of detection values of the moving amount detector and pressure detector. An electronic musical instrument has the control apparatus as a performance operation member for controlling electronic tone generation parameters in correspondence with a performance function, and a sound source for generating an electronic tone on the basis of inputs from a keyboard and the performance operation member.

Abstract: An electronic rubbed-string instrument of a type which generates musical tones in response to rubbing operation of operation member across an instrument body or string in a similar way to a violin and a viola. When a part of instrument body is rubbed with an operating member, characteristics (e.g., tone color characteristics, pitch characteristics) of a musical tone to be generated are controlled in response to a speed of the operating member. Further, the characteristics of the musical tone are controlled in response to pressure applied to a part of the instrument body with the operating member. Furthermore, the characteristics of the musical tone are controlled in response to a direction in which the bow is moved across the strings.

Abstract: A tone generation device for an electronic musical instrument capable of producing multiple tone source effects such as a stereophonic effect and a reverberation effect includes a plurality of tone forming circuits, a control parameter generation circuit for generating control parameter for controlling outputs of the tone forming circuits, a plurality of tone synthesizing circuits for synthesizing outputs of some of the tone forming circuits and outputs of others of the tone forming circuits together in accordance with the control parameters supplied from thge control parameter generation circuit, and sound systems provided in correspondence to the respective tone synthesizing circuits.

Abstract: A key depression speed is measured in units of keys of a keyboard of an electronic musical instrument by a counter for counting clock pulses, and the measured value is converted into key touch data. Counters, the number of which is smaller than the total number of keys of the keyboard are used, and one count channel is assigned to two or more keys. When two keys assigned to the same count channel are successively depressed, the initial value of the corresponding count channel is set, so that an error of the measurement values sequentially obtained in correspondence with the key depression speeds of the keys is minimized.

Abstract: In construction of a keyboard apparatus in which a plurality of keys are swingably mounted to a fixed key support and change in electric inductance is induced in response to every key operation for adjustment of musical tone control parameters, the change in inductance by an inductance change inducer is detected by at least one planar coil pattern which is arranged such that its mating surface area with the an inductance change inducer should change in correspondence to the key stroke of the key at key operation. Thanks to use of the change in the mating surface area in detection, a linear relationship is obtained between the key stroke and the detection output, which well avoids inter-key variation in detection output for uniform generation of musical tones from different keys.

Abstract: The musical tone control apparatus includes at least a sensor for detecting a movement of a player and a control circuit for controlling a tone element of a musical tone to be generated based on the detected movement of the player. The sensor may be equipped within a stick or mounted at predetermined portion of the player. As the movement of the player, the sensor can detect a swinging angle of a player's arm, an acceleration applied thereto or a distance between a player's hand and a predetermined object such as a wall. As the tone element of the musical tone, the control circuit controls a tone color, a tone pitch or a tone volume of the musical tone.

Abstract: In an electronic musical instrument capable of producing a key touch feeling resembling one in playing the piano by the provision of a hammer which is interlocked with a key, key-on data and touch data are generated in response to downward displacement of the key. In this type of electronic musical instrument, key-on data and touch data are also generated when the hammer is displaced upwardly and downwardly due to bounding of the hammer independently of the movement of the key. A touch control characteristic is established usually by using touch data generated in response to key-on data. When, however, second key-on data has been generated within a predetermined length of time after generation of preceding first key-on data, a touch control characteristic for the second on data is established by using first touch data generated in response to the first key-on data.

Abstract: The musical tone control apparatus detects a movement of a player, such as a holding, touching, beating, depressing, pulling, lifting up or down movement. Then, the musical tone control apparatus generates musical tone control data based on a detecting result of the movement of the player. The musical tone control data control a tone pitch, a tone color or a tone volume of a musical tone to be generated.

Abstract: Even though a control apparatus adapted for controlling a sound source of a keyboard type musical instrument is used with any type of electronic instruments connected therewith as a performance input apparatus, the control apparatus can provide after-touch effect as a user expects. Especially when a wind instrument playing mode is selected the control apparatus generates control data in a state inherent to a wind instrument playing mode on the basis of the received after-touch data to control musical tones, and suppresses amplitudes of variations of the control data when the after-touch data vary within a low amplitude range. Further, when the control apparatus has received a plurality of after-touch data, the control apparatus obtains only one of after-touch data, which is to be processed, thereby applying after-touch effect to musical tones with no time delay after a player's playing operation.

Abstract: A musical control device comprising a position detection device whereby the position of a portion of a performer's body is detected and output as a position signal, a velocity detection circuit whereby the velocity of the portion of the performer's body is detected and output as velocity data based on the change in the above mentioned position signal, and a musical control signal output circuit whereby a musical control signal is generated and output based on said position signal and velocity data.

Abstract: A system is provided for tracking the three-dimensional position of an object within a three-dimensional region by triangulation techniques to generate signals corresponding to such three-dimensional positions. The signals may be used to drive a music synthesizer. Triangulation may be by the use of at least three spaced apart ultrasound emitters cooperating with ultrasound receivers located on a body moving in the three-dimensional region. The position of each ultrasound receiver is calculable by triangulation from data from ultrasound pulses received by the receiver from the emitters. A sound map may be made of the region so that similar signals may drive the synthesizer differently for different sub-regions.

Abstract: A musical-tone-control apparatus having a baton which is provided with an acceleration sensor, and which is swung by a performer is provided. The intensity of a swing of the baton is detected by the acceleration sensor, and controls the tone-generation timing and tone elements such as tone pitches, tone volumes, or tone colors. The intensity of a swing is detected after a predetermined interval has elapsed from the beginning of a swing. As a result, a delay of detection of the intensity due to the inertia of the swing is eliminated. Hence, the swings and the tone-generating timing of musical tones are in harmony, which allows the performer to enjoy a natural feeling of performance.

Abstract: An electronic musical instrument has plural keys each capable of designating different tone pitch and touch response. When any key is depressed by player, touch response information is generated in response to touch intensity or depressing pressure of the depressed key. Based on the touch response information, initial-touch response effect or after-touch response effect is applied to a musical tone of depressed key or musical tones of simultaneously depressed keys. The touch response information is corrected such that the generated musical tones will not be heard un-natural. In addition, by controlling the depressing pressure of key, an automatic performance pattern consisting of predetermined accompaniment pattern and rhythm pattern can be designated and changed.