JPH07210162A - Electronic musical instrument - Google Patents

Abstract

(57) [Abstract] [Object] The present invention relates to an electronic musical instrument capable of controlling the pitch, tone color, volume, etc. of a musical tone in accordance with the pressing force of a key, and controls the musical tone during performance without separately providing an operator. To do. When one of a plurality of keys is used as a musical tone control operator while being switched to the second mode by the switching means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic musical instrument capable of controlling the pitch, tone color, volume, etc. of a musical tone in accordance with the pressure of a key.

[0002]

2. Description of the Related Art Conventionally, in an electronic musical instrument, an operator such as a pitch bend operator for controlling a musical sound during performance has been provided near the keyboard separately from the keys.

[0003]

However, in the case of miniaturizing the keyboard portion, if the key and the operator are separately provided as in the conventional case, the operator takes up a space and obstructs the miniaturization of the keyboard portion. It was. Therefore, the present invention has been made to provide an electronic musical instrument capable of controlling a musical tone during a performance without separately providing an operator.

[0004]

The electronic musical instrument of the present invention comprises a keyboard means for controlling the performance of musical tones, a key operation detecting means for detecting a key operation for each key of the keyboard means, a first mode and Switching means for selectively switching the second mode;
When a specific one or a plurality of keys of the keyboard means are operated by the switching means when the specific mode is switched to the first mode, the keys other than the specific key are operated. The same tone control is performed, and when the switching means is switched to the second mode, a key operation detected by the key operation detection means is generated without generating a tone corresponding to the specific key operated. And a control means for controlling a musical sound generated by a key operation different from the specific key in response to a key operation signal.

Here, as the specific key, for example, a key in a specific key range of the keys of the keyboard means is used.

[0006]

According to the present invention, since one or a plurality of keys are used as musical tone control operators when the mode is switched to the second mode by the switching means, a variety of musical tones can be controlled. Also, it is possible to prevent the keyboard device from increasing in size.

[0007]

The present invention will be described in detail below with reference to the drawings. FIG. 1 is a block diagram of an electronic musical instrument which is an embodiment of the present invention. The electronic musical instrument is a piano-touch electronic musical instrument capable of playing like a piano, and the keyboard circuit 2 outputs a key code signal corresponding to the pitch of the tapped key when the keyboard 1 is pressed for playing. .

The initial touch detection circuit 4 outputs an initial touch data signal corresponding to the strength of keystroke. The after-touch detection circuit 3 outputs an after-touch signal corresponding to the pressure for each key when pressure is further applied to the pressed key. Pedal operation detection circuit 8
Detects the operation state of each of the two pedals P1 and P2 and outputs a pedal state signal.

The operation panel 5 includes various operators and a display device DISP. Among various operators, there are switches for SW1 performance mode switching, SW2 assignment mode switching, and SW3 function selection as those related to the present invention.

(SW1 performance mode switching) When this switch is set to the normal mode, all the keys operate as normal keys to specify sound generation and perform aftertouch control when the key is pressed more strongly. When this switch is set to the operator mode, the keys of the specific group do not have the function of instructing to sound or aftertouch, but have the function of the assigned operator.

For example, when a normal key controls the depth of modulation as a tone generation instruction and aftertouch, one of the specific keys has a function as a pitch bender depending on the depth of depression of the key. In this embodiment, the key of a specific group is set to the lowest note 5 of the keyboard.
One key (K1 to K5).

(SW2 allocation mode switching) When this switch is ON, the keys and pedals P of the above-mentioned specific group are selected.
The control functions desired by the performer can be assigned to 1 and P2. (SW3 function selection) The above allocation mode switch SW2 is ON
At this time, each time the switch is pressed, the control function displayed changes in order, and the control function to be assigned to a specific key can be selected.

The control circuit 7 is composed of a CPU, detects the operation state of each operator, displays necessary information on the DISP, and outputs a signal necessary for generating a tone corresponding to the operation state to the tone signal generator. Send to 9. Sound system 6
The musical tone signal output from the musical tone signal generator 9 is amplified and emitted to the space.

It is noted that assigning a performance control function to a plurality of operators is described in JP-A-60-149089. (Assignment) The process of assigning a tone control function to a specific key is
Do the following: First, SW1 is set to the operator mode. Next, when SW2 is turned on, the CPU of the control circuit 7 performs the processing shown in the flowchart of FIG.

The functions that can be assigned are CPUs as a table.
It is stored in the internal ROM. In this embodiment, this table is shown in Table 1.

[0016]

[Table 1]

In step SP1, pointer n is first set to 1.
To set. Display device DISP on the operation panel
Is provided, and the character pitch bend + corresponding to n = 1 is displayed first. It is detected whether or not SW3 is pressed at SP4. When SW3 is pressed once, pointer n
Is incremented by 1 (SP5), and the display on the display changes accordingly.

When a key for assigning the currently displayed function is pressed in SP6, the number of the currently displayed function is stored in the memory (RAM) corresponding to the key as shown in Table 2. Similarly, with respect to the pedals, the performance control function can be assigned to each pedal. This allocation is made as shown in Table 2, SW2 is turned off, and the allocation is completed.

[0019]

[Table 2]

When a normal key is pressed due to the above settings, a musical tone of the pitch designated for the key is generated, and when the key is further pressed, modulation is applied by the aftertouch function of the key. This time K
When 1 is pressed, the pitch is lowered according to the pressure, K2 increases the pitch, K3 decreases the modulation speed, and K4 increases the modulation speed. The K5 has the function of a switch that controls the start and stop of the automatic rhythm.

These processes are performed by the control circuit 7 referring to Table 2 stored in the RAM and sending a signal corresponding to the operated key to the tone signal generator 9.

[0022]

As described above, according to the present invention, one or a plurality of keys can be used as an operator for controlling a musical tone, a variety of musical tones can be controlled, and the keyboard device can be enlarged. It is a non-conventional electronic musical instrument that has the characteristic that it can be prevented from playing.

[Brief description of drawings]

FIG. 1 is a block diagram of an electronic musical instrument showing an embodiment of the present invention.

FIG. 2 is a flowchart showing a process of assigning a musical sound control function to a specific key.

[Explanation of symbols]

1 keyboard 2 keyboard circuit 3 aftertouch detection circuit 4 initial touch detection circuit 5 operation panel 6 sound system 7 control circuit 8 pedal operation detection circuit 9 tone signal generator

Claims (2)

[Claims] 1. A keyboard means for performing musical tone performance control, a key operation detecting means for detecting a key operation for each key of the keyboard means, and a switch for selectively switching between a first mode and a second mode. And a specific one or a plurality of keys of the keyboard means when the specific key is operated when the specific mode is switched to the first mode by the switching means. When performing the same tone control as the keys other than the key and switching to the second mode by the switching means,
Control for controlling a musical sound generated by a key operation different from the specific key by a key operation signal corresponding to the key operation detected by the key operation detecting means without generating a musical sound corresponding to the operated specific key. An electronic musical instrument comprising means. 2. The electronic musical instrument according to claim 1, wherein the specific key is a key in a specific key range among the keys of the keyboard means.