JPH1097253A - Electronic musical instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a player who is unfamiliar with operation on the electronic musical instrument to operate it while keeping calm by blinking an LED corresponding to a switch which should be operated according to whether or not there is a person in front of the electronic musical instrument. SOLUTION: When infrared rays emitted by an infrared-ray projector 51 are reflected by a player P, the reflected light is received by an infrared-ray photodetector 52. The photodetection output of the infrared-ray photodetector 52 is converted from analog into digital by an A/D converter 53 and then supplied to a 1st input terminal of a comparator 54. To a 2nd input terminal of the comparator 54, a reference value stored in a reference value storage memory 55 is inputted and compared with the photodetection output of the infrared-ray photodetector 52. When the photodetection output of the infrared-ray photodetector 52 is larger than the reference value, it is decided that a player P is present in front of the electronic musical instrument and an LED corresponding to a timbre select switch, etc., is blinked, so the player can immediately judge which switch should be operated.

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,
In particular, the present invention relates to an electronic musical instrument that detects the presence of a person in the vicinity and prompts an operation related to performance.

[0002]

2. Description of the Related Art In recent years, with the development of electronic circuits, electronic musical instruments have been equipped with various functions. For example, an automatic accompaniment function, a recording function, and the like are mounted on various electronic musical instruments. With the automatic accompaniment function, by automatically playing accompaniment of various kinds of music, the player simply plays a melody in accordance with this, and it is possible to perform as if an ensemble is performed in large numbers. It is a function that can be done.

[0003] The recording function is a function for recording the state of performance, and the recorded performance can be reproduced and heard. In addition, since it is configured so that the performer can further perform the music over the reproduced sound, by using the recording function well, the performer can freely perform as many people as possible. Will be able to

As described above, recent electronic musical instruments are equipped with various functions, and therefore have the advantage of being able to enjoy in various ways that ordinary acoustic musical instruments cannot.

[0005]

In order to use various functions provided in the electronic musical instrument, various operation switches for selecting the functions are provided. In particular, in the case of the automatic accompaniment function, it is necessary to select various types of music accompaniment, so that many operation switches are required.

As a result, the number of operation switches for realizing various functions is steadily increasing on the panel of the electronic musical instrument. For beginners, it is difficult to know which operation switches to operate first. There was a problem that gave the impression that electronic musical instruments were difficult.

Therefore, for example, tone switches, which are necessary for a basic performance and are important, are made larger than other general switches or are changed in color to make them stand out. This has been done conventionally. However, since it is not intuitively understood which switch should be operated and at what timing, there is a problem that a beginner cannot operate the switch well.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to make it easy for anyone to know which switch to operate.

[0009]

An electronic musical instrument according to the present invention has a plurality of functions therein, and an operation switch corresponding to each function is provided on an operation panel. Detecting means for detecting whether a person is present in the electronic musical instrument, and notifying means for notifying a person in front of the electronic musical instrument which switch to operate based on a detection output of the detecting means. It is characterized by:

Another feature of the present invention is that
The detection means for detecting the presence of the surrounding person is characterized by comprising an infrared sensor comprising an infrared projector and an infrared receiver.

Another feature of the present invention is that the plurality of functions include a function of playing with various timbres.

Another feature of the present invention is that the notifying means includes an LE provided in correspondence with each function.
D is blinked.

Another feature of the present invention is to detect whether or not a person is in front of the electronic musical instrument, and when there is a person in front of the electronic musical instrument, a person in front of the electronic musical instrument is detected. It is determined whether the person is approaching or moving away, and when it is determined that a person is approaching, the LED corresponding to the switch to be operated blinks, and that the person is moving away from the electronic musical instrument. When it is determined, whether or not the LED is blinking is checked, and if the LED is blinking, a process of stopping the blinking is performed.

Since the present invention has the above technical means, an LED corresponding to a switch to be operated blinks according to whether or not a person is in front of the electronic musical instrument. This makes it possible to easily and surely operate the switches required for a proper performance, and to operate calmly even if the user is not familiar with the operation of the electronic musical instrument.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an electronic musical instrument according to the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing the appearance of the electronic musical instrument of the present embodiment. As shown in FIG. 1, in the electronic musical instrument of the present embodiment, at the position of the central portion facing the player,
The presence / absence determining means 5 is attached.

FIG. 2 shows the presence / absence determination means 5 of the present embodiment.
This shows that the presence / absence determination means 5 measures the distance L to the player P and detects whether or not there is a person playing around the electronic musical instrument. .

FIG. 3 is a block diagram showing a configuration example of the presence / absence determining means 5. As shown in FIG. 3, the presence / absence determining means 5 of the present embodiment includes an infrared projector 51, an infrared receiver 52, an A / D converter 53, a comparator 54, a reference value storage memory 55, a delay memory 56, It is constituted by a discriminator 57 and the like.

With this configuration, when the infrared light emitted from the infrared projector 51 is reflected by the player P, the reflected light is received by the infrared receiver 52. The received light output of the infrared receiver 52 is subjected to A / D conversion by the A / D converter 53 and then the first output of the comparator 54 is output.
Input terminal.

A reference value stored in a reference value storage memory 55 is input to a second input terminal of the comparator 54, and the reference value is compared with the light reception output of the infrared light receiver 52. You.

As a result of this comparison, if the light receiving output of the infrared light receiver 52 is smaller than the reference value, it is determined that there is no player in front of the electronic musical instrument. Conversely, when the light receiving output of the infrared receiver 52 is larger than the reference value, it is determined that the player P is present in front of the electronic musical instrument.

The judgment output of the comparator 54 is supplied to a first input terminal of a discriminator 57, and a delay memory 56
To the second input terminal of the discriminator 57 via the input terminal to judge whether the person in front of the electronic musical instrument is approaching or is moving away from the person.

That is, when the current output of the comparison circuit 54 directly applied to the first input terminal of the discriminator 57 is larger than the past output delayed by a predetermined time by the memory 57, Judge that the person in front of the electronic musical instrument is approaching. Conversely, if the past output of the comparison circuit 54 provided to the second input terminal of the discriminator 57 via the delay memory 56 is larger than the current output, the user is in front of the electronic musical instrument. Judge that people are moving away.

In this embodiment, when it is determined that a person in front of the electronic musical instrument is approaching, the tone switch of the panel switch is displayed so that anyone can easily recognize it.

FIG. 4 shows an example of the panel switch. Here, a volume switch 41, a transpose switch 42, and a tone color selection switch 43 are arranged. In the present embodiment, the tone switch 43 includes a piano 43a, an electronic piano 43b, and an organ 43.
c, harpsichord 43d, and strings 43e are provided, and an LED corresponding to each tone switch is provided.
Is arranged.

In such a configuration, in the case of the present embodiment, when it is determined from the discrimination output of the discriminator 57 that the person in front of the electronic musical instrument is approaching, the LED is turned on and off, thereby causing the electronic musical instrument to blink. It is easy for the person in front to operate. Note that another light emitting element can be used instead of the LED.

Hereinafter, the configuration and operation of the electronic musical instrument of the present embodiment will be described in more detail. FIG. 5 is a system configuration diagram of the electronic musical instrument of the present embodiment. In FIG. 5, reference numeral 1 denotes a microcomputer;
AM4 and the like. The microcomputer 1 performs overall control of the electronic musical instrument of the present embodiment.

Reference numeral 5 denotes the above-mentioned presence / absence determination means, which comprises a distance sensor and an A / D converter as described above. 6 is a panel, 7 is a pedal, 8 is a keyboard,
9 is a touch sensor. 10 is a tone generator, 1
1 is a D / A converter, 12 is a sound system, 15 is a bus line, and 20 is a MIDI interface.

The CPU 2, the ROM 3, the RAM 4, the presence / absence determining means 5, the touch sensor 9, and the tone generator 10 are connected to bus lines 15 such as a data bus and an address bus, respectively, for mutually transmitting and receiving data. It is configured as follows.

The CPU 2 performs a scan process of each key switch of the keyboard unit 8 and a scan process of each operator of the operation panel unit 6 in accordance with a program and tone data stored in the ROM 3, and operates each key of the keyboard unit 8. The state (key depression, key release, key number of the operated key, velocity related to the key operation speed, etc.) and the operation state of each operation element of the operation panel section 6 are detected, and the operation state of each key or the operation element will be described later. Each processing is performed.

The ROM 3 stores a work program executed by the CPU 2 and waveform data for determining the timbre of a tune to be played. The RAM 4 is provided for temporarily storing various information in the course of execution of various processes by the CPU 2 and for storing information obtained as a result of various processes.

As described above, the presence / absence determination means 5 not only determines whether or not there is a person in front of the electronic musical instrument, but also determines
It determines whether the person in front of the electronic musical instrument is approaching or is moving away from it.

The tone generator 10 has a plurality of tone generating channels and is configured to be able to generate a plurality of tone simultaneously. The tone generator 10 is provided with a CPU 2
The tone data in digital data format is generated on the basis of information sent from the user, tone parameter information set according to the operation status of each operator, and the like. The tone generator 10 includes a digital filter, a digital effect adding circuit, and the like.

The tone data generated by the tone generator 10 is applied to a D / A converter 11 to be converted into an analog tone signal, and the analog-converted tone signal is applied to a sound system 12. It is amplified by an amplifier and is sounded through a speaker (both not shown).

Next, the operation of the electronic musical instrument of this embodiment will be described in detail with reference to the flowcharts of FIGS. FIG. 6 is a flowchart of a main routine showing a schematic operation of the electronic musical instrument of the present embodiment. As shown in FIG. 6, when the power is turned on and the operation starts, first,
In step S21, CPU2, RAM4, sound source LS
I (not shown) and the like are initialized. Thereafter, panel event processing (step S22), pedal event processing (step S23), and keyboard event processing (step S2)
4) Other processes (step S25) and the like are sequentially repeated.

FIG. 7 is a flowchart for explaining the contents of the panel event process. Here, first, in step S71, based on the output of the distance sensor,
It detects whether there is a person around. The output of the distance sensor is digitized by A / D conversion, and whether or not a person is present around the electronic musical instrument is monitored based on the digitized data.

When a sensor output is generated in step S71, the process proceeds to step S72, where it is determined whether or not the apparatus is in a standby state. When the power is turned on, the standby state flag is turned on in the initialization processing of the main routine.

If the standby state flag is turned on and the apparatus is in the standby state, the flow advances to step S73 to determine whether or not a person around the electronic musical instrument has approached. If it is determined that a person is approaching, in step S74, L corresponding to a switch to be operated, such as a tone switch, is set.
Blink ED. Thereafter, in step S75, the standby state flag is turned off, and the process returns to the main routine. If the result of determination in step S73 is that a person has not approached, the process directly returns to the main routine from step S73.

If the result of determination in step S72 is that the apparatus is not in the standby state, the flow advances to step S76 to determine whether or not a person has left. If the result of this determination is that the person has moved away, the flow proceeds to step S77 and the LED
It is determined whether is blinking.

If the result of this determination is that the LED is flashing, the flashing is stopped in step S78, and then the standby state flag is turned on in step S79 and the process returns to the main routine. If the result of determination in step S77 is that the LED is not blinking, step S7
Jump directly to 9.

On the other hand, as a result of the determination in step S76,
If the person is not away, it is determined that there is a person around, and the process proceeds to step S80 to perform a switch pressing process described later as a performance preparation.

FIG. 8 is a flowchart showing the contents of the switch pressing process. Here, first, step S31
In, it is determined whether or not the pressed switch is a tone switch. If the pressed switch is a tone switch, the process proceeds to step S32.
It is determined whether the LED is blinking.

If the result of determination in step S32 is that the LED has flickered, the blinking is stopped in step S33, and then tone color selection processing is performed in step S34, after which the process returns to the main routine. If the result of determination in step S32 is that the LED is not blinking, the process of step S33 is jumped, and the process directly proceeds to step S34 to perform timbre selection processing.

If the result of determination in step S31 is that the pressed switch is not a tone switch, the flow advances to step S35 to determine whether the pressed switch is a volume switch. If the switch is a volume switch, a volume setting process is performed in step S36, and the process returns to the main routine.

On the other hand, if the result of determination in step S35 is that the pressed switch is not a volume switch, the flow advances to step S37 to determine whether or not the pressed switch is another switch. If the result of this determination is that the switch pressed is another switch, other processing is performed in step S38 and the process returns to the main routine.

If the result of determination in step S37 is that no switch has been pressed, control is returned directly to the main routine.

FIG. 9 is a flowchart showing keyboard event processing. Here, first, in step S91, it is determined whether or not the event is an ON event. If the result of this determination is that the event is an on event, step S92
To determine whether the LED is blinking.

If the result of determination in step S92 is that the LED is blinking, the blinking is stopped in step S93, and the flow advances to step S94. If the result of determination in step S92 is that the LED is not blinking, step S92
Proceed directly to 94.

In step S94, arithmetic processing of musical tone parameters is performed. When the keyboard is pressed while the LED is blinking, it means that the timbre selection operation has not been performed, so that the default timbre is selected. Thereafter, in step S95, sound generation processing is performed, and the process returns to the main routine.

If the result of determination in step S91 is that the event is not an on event, the flow advances to step S96 to determine whether or not an off event is present. If the result of this determination is that the event is an off event, the flow proceeds to step S97 to determine whether or not the damper pedal is on. If the result of this determination is that the damper pedal is on, control returns directly to the main routine. Also,
If the damper pedal is not on, step S98
Then, the release speed is loaded into the tone generator LSI to stop sound generation, and then the process returns to the main routine.

[0051]

As described above, according to the present invention, when a person approaches the electronic musical instrument, the LED corresponding to the tone selection switch provided on the panel switch blinks. The player can immediately determine which operation switch should be operated, and can quickly and smoothly perform the operations required for performing, without having to be proficient in operating electronic musical instruments. Can also be performed easily and reliably.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating an example of an electronic musical instrument according to an embodiment.

FIG. 2 is a diagram illustrating an operation of the distance sensor according to the embodiment.

FIG. 3 is a block diagram illustrating a configuration of a distance sensor.

FIG. 4 is a diagram illustrating an example of a panel provided in the electronic musical instrument of the embodiment.

FIG. 5 is a main part configuration diagram of an electronic musical instrument showing one embodiment of the present invention.

FIG. 6 is a flowchart illustrating an outline of an operation of a main routine of the electronic musical instrument according to the embodiment.

FIG. 7 is a flowchart showing an operation of a panel event process.

FIG. 8 is a flowchart illustrating an operation of a switch pressing process.

FIG. 9 is a flowchart showing an operation of a keyboard event process.

[Explanation of symbols]

 Reference Signs List 1 microcomputer 2 CPU 3 ROM 4 RAM 5 presence / absence determination means 6 panel 7 pedal 8 keyboard 9 touch sensor 10 musical sound generator 11 D / A converter 12 sound system 15 bus line 20 MIDI interface

──────────────────────────────────────────────────の Continued on front page (51) Int.Cl. ⁶ Identification code FI G10H 1/34 G01V 9/04

Claims (5)

[Claims] 1. An electronic musical instrument having a plurality of built-in functions and an operation switch corresponding to each function provided on an operation panel, wherein detecting means for detecting whether or not a person is in front of the electronic musical instrument. And an informing means for informing a person in front of the electronic musical instrument which switch to operate based on a detection output of the detecting means. 2. The electronic musical instrument according to claim 1, wherein said detecting means for detecting the presence of a nearby person is constituted by an infrared sensor comprising an infrared projector and an infrared receiver. 3. The electronic musical instrument according to claim 1, wherein the plurality of functions include a function of playing in various timbres. 4. The system according to claim 1, wherein the notifying unit blinks an LED provided for each function.
4. The electronic musical instrument according to any one of items 3. 5. A method for detecting whether or not a person is in front of an electronic musical instrument, and when there is a person in front of the electronic musical instrument, determines whether a person in front of the electronic musical instrument is approaching or moving away. Judgment, when it is determined that a person is approaching, blinks the LED corresponding to the switch to be operated, and when it is determined that the person is away from the front of the electronic musical instrument,
The electronic musical instrument according to any one of claims 1 to 4, wherein it is determined whether or not the LED is blinking, and if the LED is blinking, a process of stopping the blinking is performed.