JPH0417984Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention enables easy operation of an electronic musical instrument that serves as a parent device (hereinafter referred to as the parent device) and an electronic musical instrument that is subordinately connected to the parent device via a bus line (hereinafter referred to as the slave device). The present invention relates to an electronic musical instrument that can select a tone (referred to as a machine) and perform using the selected tone.

In order to arbitrarily select and play the tone of the slave unit and the parent unit using the controls on the parent unit, a switch for specifying the tone number of the slave unit must be placed on the parent unit in addition to the tone selection switch of the parent unit. either the master unit and the slave unit must share a tone selection switch. However, when both switches are used in common, the tone of the slave unit changes at the same time as the tone of the parent unit, which is inconvenient. The present invention solves these problems and improves operability so that smooth performance can be performed even when changing tones frequently.

FIG. 1 is a diagram showing a connection between a master unit and a slave unit according to an embodiment of the present invention, and FIG. 2 is a circuit block diagram of the master unit according to the present invention.

In the figure, reference numeral 1 indicates an electronic piano used as a base unit, and there are four types of preset tones. Reference numeral 2 denotes a sound source module which is used as a slave unit and produces sound with a pitch determined by a control signal inputted from an input terminal and a tone set internally. The timbre of the master electronic piano 1 is selected, and the timbre of the slave sound source module 2 is set to 2. Each electronic musical instrument used in this embodiment can be controlled by MIDI codes. (MIDI code is Musical
The acronym stands for Instrument Digital Interface, and it is a standard code for mutually transmitting/receiving performance and operation information between keyboards and other devices from various manufacturers, and this information can be used to enable performances on other models. ) In such a connection, when the base digital piano 1 and slave sound source module 2 are playing with their respective preset tones, the keyboard operation of the base digital piano 1 causes the base digital piano 1 and slave sound source module 2 to change the preset tones of slave sound source module 2 to 3.
If you want to change to the desired tone number, press 3 on the tone selection switch 5, which corresponds to the desired tone number of the slave tone generator module 2, while pressing the mode switch 4 on the base digital piano 1.The CPU 21 will judge and memorize the state. ,
Performance information MIDI code including tone change code
Output from MIDI terminal 6. The code is input to the slave sound source module 2 via the MIDI bus. As a result, the slave sound source module 2 is played with the tone of preset 3 of the slave sound source module 2 under the control of the performance information of the keyboard 27 and the like of the master electronic piano 1. Next, if you want to change the preset tone of electronic piano 1 to, for example, in this state, do not press mode switch 4, but press tone selection switch 5.
When only the upper 3 is pressed, the CPU 21 judges the state, memorizes the number 3 of the tone selection switch 5 that corresponds to the preset tone of the selected electronic piano 1, and changes the preset tone of the base unit electronic piano 1 to .

As described above, the user arbitrarily changes the preset tone of the parent electronic piano 1 using only the tone selection switch 5, and changes the preset tone of the child unit by operating the mode switch 4 and tone selection switch 5, respectively. The changed tone color can be used to perform on the keyboard of the parent device.

As described above, according to the present invention, there is no need to provide a special tone selection switch for slave connected devices, and the preset tone number of the master unit can be changed by the simple operation of pressing the mode switch and selecting the tone selection switch. Similarly, on the base unit, you can select any preset tone without changing the preset tone number of the slave unit by simply pressing the tone selection switch. Since it is possible to perform using the selected tones of each electronic instrument, it has great practical value as a parent unit of an electronic instrument that selects and plays multiple preset tones. It is.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a connection between a master unit and a slave unit according to an embodiment of the present invention, and FIG. 2 is a circuit block diagram of the master unit according to the present invention. 1...Electronic piano, 2...Sound source module, 4
...Mode switch, 5, 7...Tone selection switch, 6,9...MIDI/OUT terminal, 8...
MIDI/IN terminal, 21...CPU, 22...Memory, 23...Sound source, 26...Sound source output, 27...
Keyboard, 28...Tone setting device, 29...MIDI output.

Claims (1)

[Scope of Utility Model Registration Claim] In a parent unit of an electronic musical instrument group consisting of an electronic musical instrument serving as a parent unit and an electronic musical instrument sub-connected to the electronic musical instrument via a bus line, one of a plurality of tones is used. a first controller for selecting and specifying a mode; a second controller for specifying a mode; Tone designation information is sent by operating the controller, and the second
control means for changing the tone of the parent unit by operating the first operator when the tone specification mode of the parent unit is selected by operating the first operator; An electronic musical instrument that generates musical tones.