Abstract: A melody supplement control apparatus is disclosed wherein supplementary tones for melody tones are produced according to predetermined rules, and the degree of the addition of the aforesaid supplementary tones to the aforesaid melody tones is determined based on the pitch of the said supplementary tones.

Abstract: An electronic musical instrument having a function of simultaneously generating musical tones of a plural tone color comprises a tone color designating device for designating a plurality of tone colors, and a balance decision device for deciding balance of tone volume between the tones of tone colors designated by the tone color designating device, according to the order specified thereby. After the tone colors are designated, when musical tone generation is specified by a keyboard or the like, the musical tones of the tone colors are generated according to the previously decided balance of tone volume.

Abstract: An electronic musical instrument provides a keyboard providing plural keys, memories for storing necessary programs and data, a musical tone signal generating circuit providing plural channels and a control unit such as a micro computer. A melody tone is designated by depressing a melody key within the keyboard. Then, an additional tone is automatically generated in relation to the melody tone by executing the programs, wherein its pitch, volume and tone color are controlled by the control unit. The melody tone and additional tone are assigned to desirable channels, from which the melody tone and additional tone are generated at different phonic positions. By varying the number of forming pattern of additional tones, it is possible to carry out the performance full of variety. Preferably, the additional tone is selected identical to a chord constituent note within a chord designated by performing the keyboard.

Abstract: In controlling a sound source for an electronic musical instrument, operation data of a performance operation member corresponding to musical tone control parameters of a musical instrument is converted according to a tone generation region characteristic of the musical instrument. The tone generation region is approximated as a closed region defined by one or more curves. The converted data is inputted to a sound source circuit of the electronic musical instrument, so that a musical tone from pianissimo up to fortissimo can be generated sufficiently, while the musical tone approximates that of the musical instrument.

Abstract: Either the frequency of phase of an original musical sound signal is modulated, the musical sound signal is weighted, a reverberation effect is added thereto and the thus modified signal is added with the original musical sound signal.

Abstract: The wear for controlling a musical tone consists of a wear worn by a player, a main body and at least one detector for detecting a certain movement of the player. The main body is mounted at a player's waist, and the detector is mounted at a player's joint by use of a mounting member such as a plane fastener. Hence, the mounting position of the detector can be freely adjusted. The main body and the detector are connected by use of wires which may be sewed in the wear. In addition, the detector may constitute a supporter which can be freely mounted at the player's joint. When the detector detects the movement of the player, such as a bending angle of the player's joint, a tone pitch, a tone volume or a tone color of the musical tone to be generated is controlled based on the detected movement of the player.

Abstract: An apparatus for producing panned tones comprises tone generator for generating a plurality of tone signals, the tone generator including a plurality of channels each for generating one of the plurality of tone signals. The plurality of tone signals generated by the tone generator are grouped into a plurality of groups. A pan setting device is provided for setting, for each of the plurality of groups, a manner of how the respective groups are pan-controlled. A pan effecting device is provided for automatically pan controlling said each of the plurality of groups based on respective settings of the pan setting device so that tone panning effects are produced according to each of the plurality of groups. The pan setting device sets characteristic for each of the plurality of groups to move a location of a formed sound image periodically when the plurality of groups of tone signals is output.

Abstract: A detector unit is provided which receives envelope signals related to a predetermined number N of channels to detect a channel showing a greatest or smallest level of the envelope signal among the N channels and outputs data indicative of the detected channel and the level of its envelope signal. When the total number M of the channels is larger than N, a plurality of the detector units are provided, the envelope signals of the number M of the channels are divided into groups numbering not more than N, and the groups are distributed to the respective detector units so that the channel of which level of the envelope signal is the greatest or smallest is detected in each of the detector units. The levels of the envelope signals of the channels detected by the respective detector units are compared with each other, and one detector unit connected with the channel of the greatest or smallest level of the envelope signal is identified.

Abstract: There are provided a tone signal generation circuit capable of selectively generating either a normal tone signal corresponding to a selected tone color or a special tone signal corresponding to the same selected tone color but having a characteristic which is different from that of the normal tone signal, and a tone selection circuit selecting whether the normal tone signal is to be generated or the special tone signal is to be generated in this tone signal generation circuit. A tone signal having a characteristic of a tone generated by a misplay, for example, is used as the special tone signal. In case a tone is generated by depression of a key, the normal tone signal is selectively generated in most cases but the special tone signal may be selectively generated from time to time. By doing so, a tone of a misplay is occasionally generated thereby giving the impression of naturalness as if a natural musical instrument were being played.

Abstract: The present invention relates to a musical tone control apparatus which controls the generation of musical tone in response to the motion of player. By retaining holding means in a performer's hands and depressing finger pressure sensing means by a finger or fingers, signals are generated in response to the magnitude of finger pressure. When the operation signal generating means receives these signals, a pulse is generated therefrom. The beginning of the pulse is determined by associating the signals from the finger pressure sensing means with a predetermined first signal level. The ending of the pulse is determined by associating the signals from the finger pressure sending means with a predetermined second signal level, the predetermined second signal level being closer to a reference signal level which is set in releasing position than the predetermined first signal level. That is, the time interval of the pulse is determined by the characteristic of the hysteresis.

Abstract: An electronic musical instrument is disclosed as including a tone pitch-assigning device which assigns pitches to musical tones which are to be generated by the instrument; a plurality of manually operable members; a control message-producing device that automatically produces musical tone-controlling messages which respectively correspond to operation of the manually operable members; and a musical tone-generating device which automatically generates a plurality of musical tones for each of the musical pitches assigned by the tone pitch-assigning device. The tone volumes of the musical tones are controlled based upon the tone-controlling messages so that the musical tone-generating device generates musical tones with tone volumes which may change in time, which may maintain a constant volume, or which may be attenuated, depending upon certain predetermined conditions.

Abstract: A first musical tone to be generated by a musical tone generating channel and a second musical tone which is the same as the first tone and which already has been generated by another musical tone generating channel are both generated in a superposed manner. When the first tone is generated, the volume of either the first tone or the second tone is superimposed on the generated volume of the other musical tone. Also, the volume attributed to the first musical tone due to decay is reproduced by changing the volume of the second musical tone.

Abstract: A breath detection signal from a breath sensor section is converted to a digital breath detection signal, and when the value of the detection signal exceeds a preset value, a tone is generated. After the tone generation, a tone parameter of the tone being generated is controlled according to the value of said digital breath detection signal. When a predetermined period of time is elapsed from an instant when the digital breath detection signal exceeds a preset signal, initial breath data is generated in correspondence to the breath detection signal or preset value at that instant. The tone parameter of the tone at the time of the tone generation is controlled according to initial breath data. After the generation of the tone, the tone parameter of the tone being sounded is controlled according to after-breath data corresponding to the breath detection signal.

Abstract: An input waveform signal is first converted into a compressed waveform signal by log-conversion. The compressed waveform signal is then converted into a digital compressed waveform signal so that a pitch of the input waveform signal is extracted from the digital compressed waveform signal. Note-on/off states of a musical tone to be produced are controlled in accordance with the level of the digital compressed waveform signal and a predetermined threshold. The attenuation period of the input waveform signal and, thus, the note-on time, can therefore be prolonged to correspond more closely with the actual playing of an instrument from which the input waveform signal is obtained.

Abstract: An effect tone generating apparatus can generate an effect tone of an appropriate pattern such as the murmur of a brook or songs of birds, at an arbitrary timing with a simple operation. Since the tone volume of an effect tone can be gradually increased or decreased and the tone volume can be independently controlled in units of channels using a plurality of channels, the audible impressions created by the effect tones can be improved.

Abstract: An envelope shape generator generates envelope shape data for controlling a tone signal in the form of data in decibel representation. In performing a rapid attenuation control called "forcing damp" during attenuation of the envelope shape data generated by the envelope shape generator, the envelope shape data in decibel representation is rapidly attenuated with such a characteristic that inclination of attenuation becomes increasingly steeper. This is advantageous because inclination of a rapidly attenuating portion is modified to a substantially uniform inclination when the envelope shape data is converted to data in linear representation. There are also provided a detection circuit for detecting that the level of the envelope shape has dropped below a predetermined level corresponding to a minimum level at which a tone waveshape can be effectively represented and a circuit for rapidly attenuating the envelope shape in response to this detection. This contributes to elimination of noise.

Abstract: Circuitry for an electronic tone generator effectively isolates a tone modulating RC network from the electroacoustic output device and associated volume control systems. This isolation prevents low or variable impedance of the output portion of the generator from adversely affecting the charge and discharge rate of the RC network. Isolation circuitry includes a MOSFET connected in a source follower circuit to convert the voltage signal from the RC network to a comparable current signal which is amplified through a pair of MOSFETs in a current mirror circuit.

Abstract: A control waveform generating apparatus for an electronic musical instrument generates a control waveform having at least a rising portion and a falling portion whose levels vary in a lapse of time. The control waveform is divided into a plurality of segment waveforms each of which includes a constant level portion (an interval portion) and at least one of the rising portion and the falling portion therein. The rising rates and falling rates and interval durations of the respective segment waveforms are selected by a player so that the control waveform having an arbitrary waveform can be obtained. When generating the control waveform, each of the plural segment waveforms is sequentially designated and outputted as a part of the entire control waveform. When the present segment waveform next to the preceding segment waveform is designated, the last level of the preceding segment waveform is maintained in a selected interval period.

Abstract: In preparing a musical tone by synthesizing tone waveforms from a plurality of tone waveform generators, touch response data representing parameters such as key depressing speed or string picking force is generated from a touch response data preparing unit. The obtained touch response data can be used to affect the musical tone. Touch curves can be independently designated to these tone waveform generators with a manually operating unit. A weighting device for modifying a touch curve by selecting loudness level and sensitivity is provided so that various touch curves can be attained from a single touch curve for weighting the musical tone.