JPH0637895U - Electronic musical instrument - Google Patents

Abstract

(57) [Summary] [Purpose] To enable the balance of the volume of many tone color parameters to be adjusted with a single operator. [Structure] One tone color balance operator 2, a tone waveform generator 5 for generating tone waveform signals for each VOICE, and each VO.
A group register 7 for storing ICE group allocation information, a tone color balance table 11 for obtaining balance data according to an operation amount of the tone color balance operator 2 from characteristics assigned to each group, and a tone waveform signal for each VOICE. And a multiplier 13 that controls the control unit based on the balance data.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electronic musical instrument having a function of producing a plurality of timbres (voices) at the same time, in which the volume balance of each timbre can be adjusted by one operator.

[0002]

[Prior art]

 In this type of conventional electronic musical instrument, for example, a volume slider is used as an operator, and the volume balance of the two tones is adjusted by the operation amount of the volume slider. Therefore, when the number of timbres is more than 2, a plurality of volume sliders are prepared, and the volume balance of each timbre is adjusted by each volume slider.

[0003]

[Problems to be solved by the device]

 However, when one tone is composed of a plurality of tone color parameters, the conventional configuration as described above requires a large number of volumes, which makes the operation complicated and is not practical. Further, the volume slider occupies a large area on the operation panel, which causes a problem that the operability of the entire electronic musical instrument is deteriorated.

An object of the present invention is to provide an electronic musical instrument in which a plurality of timbres are grouped and the volume balance of each timbre can be adjusted by one operator.

[0005]

[Means for Solving the Problems]

 The present invention has one operator, a plurality of tone parameter control characteristics, and a tone parameter control amount output means for outputting the tone parameter control amount for each characteristic according to the operation amount of the operator, and a plurality of tone parameter control amount output means. A tone generation section for generating a tone consisting of tone color parameters, and any tone color parameter of the tone generated by the tone generation section is divided into a plurality of groups, and each group is assigned to each tone of the tone parameter control amount output means. Tone parameter assigning means to be assigned to the parameter control characteristics, and tone parameter parameters to be output from the tone parameter control amount output means for each group for each tone color parameter of the tone output from the tone generating section when outputting a tone. And a tone color parameter control means for controlling based on a control amount.

In the above configuration, the musical tone parameter is used as a volume parameter, and each musical tone parameter control characteristic of the musical tone parameter control amount output means is set to the total volume at the time of musical tone output regardless of the operation amount of the manipulator. The power can be set to a constant characteristic.

[0007]

[Action]

 Arbitrary ones of a plurality of tone color parameters constituting one tone are divided into a plurality of groups, and each group is assigned to each of a plurality of tone parameter control characteristics of the tone parameter control amount output means. For example, a plurality of tone color parameters are composed of a to f and are divided into two groups a to c and d to f, while the tone parameter control characteristics of the tone parameter control amount output means are set to A and B. If so, a to c are assigned to the characteristic of A and d to f are assigned to the characteristic of B. The tone parameter control amount output means outputs the tone parameter control amount for each tone parameter control characteristic according to the operation amount of one operator. Therefore, at the time of tone output, the tone color parameters a to c are set to A. The tone color parameters d to f are controlled according to the tone parameter control characteristics, and the tone color parameters d to f are controlled according to the tone parameter control characteristics B.

[0008]

【Example】

 1 to 3 show conceptual diagrams of an embodiment of the present invention. FIG. 1 shows a relationship table between each tone color name that constitutes one tone and a code that represents the tone parameter control characteristic (volume control characteristic) to which each tone color is assigned. For example, the bass tone color is Dx. pf, E. It is grouped together with Guit and assigned to the volume control characteristic A.

Further, the timbre Str is grouped together with Flute and assigned to the volume control characteristic B. Note that * indicates that it is not assigned to any of the characteristics A and B. FIG. 2 shows a volume slider, which has a resolution of 8 bits (0 to 255). Further, FIG. 3 shows volume control characteristics A and B that determine the volume control amount output from the volume control amount output means. Here, each characteristic is set so that the sum of the volume powers of A and B is always equal (A ² + B ² = 1) regardless of the position of the x-axis (volume slider operation position). The curve is set. Therefore,

[0010]

[Equation 1]

It is expressed as In FIG. 3, when the value of the volume slider is x, the volume of each timbre output at the time of outputting a musical tone is as follows from the table of FIG.

Bass Vol = volbas × Ax Str Vol = volstr × Bx Dx. pf Vol = volDx. pf x Ax S.p. pad Vol = volspad E. Guit Vol = volE. Guit × Ax Flute Vol = volflute × Bx Note that the first term on the right side of the above equation is predetermined tone volume data preset for each tone color.

FIG. 4 is a schematic control flowchart when outputting a musical tone using the characteristic curve shown in FIG.

When there is an event from the volume slider shown in FIG. 2, its position data is taken in, and the volume control characteristic of each tone color that constitutes the musical tone to be sounded by referring to the table of FIG. It is determined whether this is a tone color group A) or B (this is a tone color group B). Then, in the case of the A group, the A curve of the characteristic (balance table) shown in FIG. 3 is looked up, the balance data A x is loaded, and the volume data of each tone color is multiplied by the loaded balance data A x. , Vol. The same processing is performed for the tone colors of the B group. Then, the Vol obtained for each group is output to the sound source.

FIG. 5 shows a more specific configuration diagram of the electronic musical instrument described above. Further, FIG. 6 is a timing chart. In this embodiment, an example in which one tone is obtained by synthesizing tone signals of six tone colors VOICE1 to VOICE6 will be described.

The performance operator 1 is composed of, for example, a keyboard. The tone color balance operator 2 is composed of one volume slider as shown in FIG. The tone color designating section 3 is a switch for designating the six tone colors VOICE1 to VOICE6 that compose the tones to be pronounced. The control unit 4 is for controlling the operation of the entire electronic musical instrument, and includes a CPU, a ROM, a RAM, and the like. The ROM stores a plurality of tone color data TC and the like, and each tone color data TC comprises data for designating a tone waveform, data for designating a volume, and data for designating a group. The control unit 4 connects the performance operator 1, the tone color balance operator 2, and the tone color designation unit 3 to the input side, and takes in the input information by the event method. To the output side of the control section 4, a tone waveform generating section 5, a volume data register 6 and a group register 7 are connected. The control section 4 outputs to the tone waveform generating section 5 a key-on signal KON, a key code KC, touch data TOUCH, and six tone colors TC corresponding to six tone colors VOICE1 to VOICE6, and volume data Six tone color data TC corresponding to the six tone colors VOICE1 to VOIC E6 are output to the register 6 and the group register 7.

The musical tone waveform generating section 5 generates a musical tone waveform signal based on the key-on signal KON, the key code KC, the touch data TOUCH, and the tone color data TC output from the control section 4. It becomes possible to simultaneously generate musical tone waveforms of six tone colors (VOICE1 to V OICE6) designated by 3 and to store data designating musical tone waveforms of the tone color data TC output from the control unit 4. It has two registers. The volume register 6 is composed of six registers for storing data designating the volume of the tone color data output from the control section 4. The group register 7 is composed of six registers for storing data designating a group of the tone color data output from the control section 4. Data is stored in six registers provided in the tone waveform generating section 5, the volume data register 6, and the group register 7, respectively, corresponding to six tones. That is, the data designating the tone waveform corresponding to VOICE1, the data designating the volume, and the data designating the group are respectively stored in the first register of the six registers, and each data corresponding to VOICE4 is stored. Are respectively stored in the fourth register.

A decoder 8 is connected to the group register 7. The group register 7 outputs a group name code (01 for A, 10 for B, * for 00) in a time-sharing manner, and the decoder 8 decodes these group name codes and outputs them to EXOR9 or OR10. To do. The 8-bit balance operator data TCB generated by the tone color balance operator 2 is input from the control unit 4 to one input of the EXOR 9. When the other input of EXOR9 is "1", that is, when the B group is selected, the balance operator data TCB of one input is inverted and output to the next OR10. Further, when the group A is selected, the other input of the EXOR 9 becomes "0", so the balance operator data TCB is directly output to the OR10. The signal from the * output terminal of the decoder 8 is input to the OR10 together with the output of the EXOR9, and the output of the OR10 is input to the x-axis address part of the tone color balance table (TCBT) 11 having the characteristic curve of the volume control characteristic A. It is output as TBLADD. Therefore, when * is not selected, that is, when Group A or Group B is selected, the output of EXOR9 is output as TBLADD as it is to the x-axis address part of the tone color balance table 11, but * is " When 1 ", that is, when * is selected, FF (H) is output as TBLADD to the x-axis address part of the tone color balance table 11. The tone color balance table 11 is divided into 0 to 255 on the x axis, calculates y corresponding to TBLADD, and outputs it as the balance data BAL. When TVLADD is FF (H), the maximum value "1" is output as BAL. BAL is a value in the range of 0 to 1. In the tone color balance table 11, only the characteristic curve of the volume control characteristic A is set as described above, but the balance operator data TCB is inverted when the B group is selected in EXOR9. Therefore, at the timing when the B group is selected, the balance data BAL in the characteristic curve B which is a target curve with respect to the x-axis is equivalently obtained. That is, in this embodiment, the structure of the timbre balance table 11 is simplified by using the EXOR 9.

The balance data BAL is input to the multiplier 12, and the preset volume data VOLD from the volume data register 6 is further input to the multiplier 12. The multiplier 12 multiplies this VOL and BAL and leads the result to the multiplier 13 as final volume data VL, where the waveform data WAVE output from the tone waveform generating section 5 is multiplied by VL. Determine the volume of each VOICE.

As shown in FIG. 6, the above-mentioned processing is time-divisionally performed for each channel, and further, the processing for each VOICE is time-divisionally performed within the processing time of each channel. Therefore, the output of the multiplier 13 is accumulated in the accumulator 14 for all channels and all VOI CEs and output to the output terminal OUT. The tone waveform signal output from the output terminal OUT is output to a sound source (not shown) and output as an actual tone.

In the tone waveform generator 5, VOICE is selected from the tone color data TC, and the tone waveform of each VOICE is selected and formed by the key code KC and the touch data TOUCH. The key-on signal KON controls the timing of generating a musical tone waveform. Further, the data of VOL1 to VOL6 corresponding to each VOICE1 to 6 of the volume data register 6 can be set in advance from an input unit not shown, and the group name of each VOICE of the group register 7 is not input in advance. Can be set with.

In the above embodiment, by using the group register 7 and the tone color balance table 11, the volume balance of each VOICE can be adjusted according to the operation amount of the tone color balance operator 2, but control is possible. The musical tone parameters are not necessarily limited to the volume, and other musical tone parameters are possible. Further, each VOICE does not have to be a specific tone color name such as Bass, Str, etc. as shown in FIG. 1, and when one tone color has a hierarchical structure, it has a lower level. It may be an element name.

[0023]

[Effect of device]

 The performer can easily adjust the balance of many timbre parameters by operating a single control. Further, since the grouping of each timbre parameter is arbitrary, there is flexibility in that the method of changing the balance of timbre parameters with respect to the operation of the manipulator can be adapted to the preference of the performer. Further, since it is not necessary to provide a large number of volume sliders or the like on the operation panel of the electronic musical instrument, there is an advantage that the operability of the entire electronic musical instrument is improved.

[Brief description of drawings]

FIG. 1 is a diagram showing a table when each tone color name is assigned to a volume control characteristic in the electronic musical instrument of the embodiment of the present invention.

FIG. 2 is a diagram showing a volume slider used in the above embodiment.

FIG. 3 is a diagram showing a tone color balance table used in the above embodiment.

FIG. 4 is a flowchart showing a schematic operation of the above embodiment.

FIG. 5 is a diagram showing a more specific configuration diagram of the electronic musical instrument of the embodiment.

6 is a diagram showing a time chart during operation of the electronic musical instrument shown in FIG.

[Explanation of symbols]

 1-Performance operator 2-Tone color balance operator 3-Tone color designation section 5-Music waveform generator 6-Volume data register 7-Group register 11-Tone balance table

Claims (1)

[Scope of utility model registration request] 1. A musical tone parameter control amount output means having one operating element, a plurality of musical tone parameter control characteristics, and outputting a musical tone parameter control amount for each characteristic according to an operating amount of the operating element, A tone generation section for generating a tone consisting of the tone color parameters, and any of the tone color parameters of the tone generated by the tone generation section are divided into a plurality of groups, and each group has each tone parameter of the tone parameter control amount output means. Tone color parameter assigning means assigned to the control characteristic, and each tone color parameter of the tone output from the tone generating section during tone output based on the tone parameter control amount output from the tone parameter control amount output means for each group. An electronic musical instrument comprising a timbre parameter control means that is controlled by.