JPH09274427A - Musical tone producing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the distinct execution of the guidance for musical instrument operation in synchronization with a music to be reproduced. SOLUTION: A CPU 21 is inputted with data from a position sensor 22 disposed in a finger key section, string plucking detection data from a trigger sensor 23, and data of mode information from a console panel, etc., and instructs sound production and silencing to a sound source 25 in accordance with the input data. The CPU 21 outputs the image information to display the fingers to press the frets corresponding to the pitch of the musical tones to be produced by rotating the fingers by a set angle together with the sound production and erasing instruction to the sound source 25 via a VDP(video display processor) 29 and a VRAM 30 and distinctly displays the guidance of the musical instrument operation in synchronization with the music to be reproduced on a television image receiver.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a musical tone generating device for generating musical tone data of a music piece to be reproduced.

[0002]

2. Description of the Related Art When practicing a musical instrument, it is general to take a lesson with a teacher or learn by himself while looking at a textbook. For example, when taking a lesson with a guitar teacher, the teacher practices by watching the finger pressing on the fret of the fingerboard. Also, when a beginner learns himself by referring to the chord symbols in the score, he practices the chord performance while looking at the chord table in the chord book.

[0003]

However, for example, when taking a lesson with a guitar teacher, when looking at the fingering of the teacher and imitating the fingering, the frets are hidden by the fingers to be pressed, so that each fret of each fret There is a problem that it is difficult to clearly determine which string is being pressed. Also, when self-studying chord performance with a chord book, since the tune to be played and the chord table are not synchronized, the practice becomes intermittent and becomes a complicated task. An object of the present invention is to make clear the guidance for operating a musical instrument in synchronization with the music to be played.

[0004]

The present invention corresponds to a pitch designating means for designating a pitch, a musical tone data transmitting means for transmitting musical tone data of a music to be reproduced to a sound source, and a pitch of the musical tone data to be transmitted. Image output means for outputting the image information to be displayed by rotating the operation position of the pitch designating means by the angle set on the display screen. With this configuration, the image at the operation position corresponding to the melody or chord of the musical sound to be reproduced is displayed on the display device such as the television receiver.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS.
First to third embodiments of examples in which the musical sound generating device according to the present invention is applied to an electronic guitar will be described. The electronic guitar in each embodiment has a body portion 1 as shown in FIG.
And the fingerboard portion 2. Frets 3 are provided on the fingerboard 2, and the actual strings are not stretched. However, inside the fingerboard 2, a position sensor (not shown) is embedded at a position corresponding to each string for each fret 3 as a pitch designating means for designating a pitch in response to depression. On the other hand, the operation portion of the body portion 1 is provided with a trigger sensor 4 for detecting the string number of a banged string, a console panel 5 provided with various switches, and an internal speaker 6. Moreover, an audio output terminal 7 and a video output terminal 8 for connecting to an external speaker are provided on the side surface of the body portion 1.
As shown in FIG. 1B, the console panel 5 is provided with a start / stop switch 5a for starting or stopping a CPU described later, a function switch 5b for selecting an automatic performance mode / manual performance mode and other modes. Has been.

When this electronic guitar is played alone, the function switch 5b is set to the manual playing mode, and the fret 3 is depressed to play a string, and a position sensor corresponding to the string number detected by the trigger sensor 4 is selected. The pitch of is output from the speaker 6. On the other hand, when the electronic guitar is used for automatic performance, as shown in FIG. 2, the signal cables 9 and 10 connected to the audio output terminal 7 and the video output terminal 8 are connected to the audio input terminal of the television receiver 11, respectively. 12 and the video input terminal 13. Then, when the start switch 5a is pressed, if the function switch 5b is in the automatic performance mode, the reproduction signal of the music is input from the audio output terminal 7 to the audio terminal 12 of the television receiver 11, and the video terminal 8 outputs the signal. A video signal indicating operation information for playing a song is input to the video input terminal 13 of the television receiver 11.

FIG. 3 is a system configuration of a musical tone generating device built in this electronic guitar. A position sensor 22, a trigger sensor 23, and a console switch 24 are connected to the input port of the CPU 21, and a sound source 25 is connected to the output port. An amplifier 26 is connected to the sound source 25. A RAM 27, a ROM 28, and a VDP (video display processor) 29 are connected to the bus of the CPU 21. And
The VDP 29 has a VRAM 30 and RGB / ENCODE
R31 is connected.

Next, the function of each section will be described. CP
U21 inputs data such as pitch data from the position sensor 22 provided on the fingerboard 2, string detection data from the trigger sensor 23, and mode information from the console panel 5, and based on the input data. Pronunciation on sound source 25,
A mute is instructed to output an audio signal to the speaker 6 and the audio output terminal 7 via the amplifier 26. R
The AM 27 temporarily stores the arithmetic data processed by the CPU 21, tone data, image data and the like. ROM28
Stores the operation program of the CPU 21, tone data, and image data in advance. VDP29 is RA
The image data supplied from M27 is converted into image data that can be displayed on the screen. The VRAM 30 stores or outputs image data for one screen in response to a write instruction or a read instruction of the VDP 29. RGB / ENCODER3
1 converts the RGB analog signal from the VDP 29 into a video signal in the format of the television receiver 11 and sends it out from the video output terminal 8.

Next, a first embodiment of the present invention will be described. Function switch 5b on console panel 5
When the start switch 5a is turned on in the state where is set to the automatic performance mode, the CPU 21 in FIG. 4 performs device initialization for initializing the state of each part (step S1) and executes the main flow (step S).
2). In this main flow, as shown in FIG. 5, the position sensor 22 and the trigger sensor 23 are scanned (step S3), and sound generation processing is performed based on the input data (step S4). Also, each switch of the console panel 5 is scanned (step S5) to create an event matrix (step S6). Then, the music process for the sound source 25 is executed based on the tone generation process and the event matrix (step S7). Next, image processing (step S
8) and other system processing (step S9).

In the image processing, as shown in FIG. 6, it is judged whether or not there is an image switching event (step S1).
1) If there is an event, the initial screen data is RO
Load from M28 to RAM27 (step S1
2) Return to the main flow. On the other hand, when there is no image switching event, the current screen mode is determined (step S13), each screen mode process (step S14), and the code display mode process (step S1) according to the determination result.
Go to step 5) and return to the main flow. When performing the code display mode process, as shown in FIG. 7, it is determined whether or not there is an image event (step S16). If there is no image event, the process returns to the flow of FIG. 6 and there is an image event. In that case, the image event is analyzed (step S
17). Based on the analysis result, code form display processing (step S18), other screen processing, switch lighting processing and the like are performed (step S19), and the process returns to the flow of FIG.

In the code form display process of step S18, as shown in FIG. 8, the code name is analyzed (step S20) and the code form font is stored in the RAM 27.
Is drawn in a predetermined area (step S21). The image data of the drawn code form is 1/60 shown in FIG.
VD from RAM 27 in response to VDP interrupt every second
Transfer to P29 (step S22). The VDP 29 sequentially transfers the transferred code form image data to the VRAM 3
Write to 0. When the image data for one screen is written in the VRAM 30, the image data for one screen is read out, converted into a video signal by the RGB ENCODER 31, and displayed on the television receiver 11.

As a result, on the screen displayed on the television receiver 11, as shown in FIG. 10, a screen title 41, a key 42 of a song automatically played, a bar and a beat of the song (po).
43), pitch change time setting (time)
44, the tempo (tempo) 45 of the song, and the number of measures 46 are displayed. In addition, an image of the finger holding the fret (image information of the operation position) 48 corresponding to the display of the plurality of code names 47
Is displayed. Also, the display of the chord name that is currently sounding is highlighted.

As described above, according to the first embodiment, as shown in FIG.
The CPU 21 in the above constitutes a tone data sending means for sending the tone data of the music to be played back to the sound source, and an image output means for outputting image information indicating the finger pressed by the fret corresponding to the pitch of the sent tone data. With this configuration, the television receiver 1 displays the chord name 47 corresponding to the chord of the musical tone to be reproduced and the image 48 of the finger holding the fret.
1 can be displayed. Therefore, the user
The chord performance can be easily practiced by seeing the displayed chord name 47 and the image 48 of the finger holding the fret.

Next, a second embodiment will be described. In this embodiment, the code form process of step S18 in FIG. 7 is different from that of the first embodiment. That is, FIG.
As shown in 1, the code name is analyzed (step S3
1) After that, it is determined by the state of the console panel 5 whether or not the mirror image is set (step S32). If it is not the mirror image setting, the normal codeform font drawing process similar to that of the first embodiment is performed (step S33). If the mirror image is set, mirror image codeform font drawing processing is performed (step S33). As a result, on the screen displayed on the television receiver 11, as shown in FIG. 12, an image 49 of a finger holding a fret that mirrors a playing state is shown.
Is displayed. Therefore, the user is the TV receiver 1
By looking at the chord name 47 and the image 49 of the finger holding the fret displayed on the screen of No. 1, it is possible to practice chord playing more easily because it feels as if the person playing is in the mirror. it can.

Next, a third embodiment will be described. Also in this embodiment, the code form process of step S18 in FIG. 7 is different from that of the first embodiment. That is, as shown in FIG. 13, after the code name is analyzed (step S41), the angle setting of the code form is analyzed by the state of the angle setting switch (not shown) of the console panel 5 (step S42). Then, the drawing process of the code form font is performed corresponding to the set angle (step S43). As a result, on the screen displayed on the television receiver 11, as shown in FIG. 14, an inclined image 50 of the finger holding the fret according to the set angle is displayed. Therefore, the user sees the code name 47 and the image 50 of the finger holding the fret displayed on the screen of the television receiver 11 and sets the image of the finger holding the fret at an angle that is easier for him to see. You can practice chord playing more easily. In the third embodiment, the image 50 of the finger holding the fret is displayed as the second image.
Similar to the embodiment, a mirror image may be displayed.

Further, in each of the above-mentioned embodiments, the image of the finger holding the fret is the operation position of the chord which constitutes the chord of the tone data to be sent, but it is the operation position of the melody of the tone data to be sent. May be.

Further, in each of the above-described embodiments, the image of the finger holding the fret is displayed in synchronization with the music to be automatically played. However, when the user looks at this image and actually presses the fret, If you press it by mistake, the fret position can be detected by the position sensor 22, so you should make the proper fret position that should be pressed blink on the screen, and stop blinking when you press the correct fret position. May be.

Further, in each of the above embodiments, the musical tone generating apparatus applied to the electronic guitar has been described, but the musical tone generating apparatus of the present invention can be applied to other electronic musical instruments such as keyboard musical instruments. For example, a keyboard musical instrument may be provided with a liquid crystal display device so that the keyboard operation position is displayed in synchronization with the music to be played automatically. In this case, the musical tone data of the music to be reproduced may be transmitted from an external MIDI device.

Further, in each of the above embodiments, the musical tone generating apparatus of the present invention is incorporated in the electronic guitar, but the configuration of the musical tone generating apparatus of the present invention is not limited to each of the embodiments. For example, it may be a product in which a musical tone generating device and a television receiver are combined, or a product in which the musical tone generating device of the present invention is incorporated in a television receiver. In this case, you can practice electronic musical instruments and acoustic musical instruments while looking at the screen.

[0020]

According to the present invention, an image at the operation position corresponding to a melody or a chord of a musical tone to be reproduced is displayed on a display device such as a television receiver. Therefore, it is possible to practice the musical instrument easily by clearly displaying the musical instrument operation guidance on the display device in synchronization with the music to be reproduced.

[Brief description of drawings]

FIG. 1 is an external view of an electronic guitar according to each embodiment of the present invention.

FIG. 2 is an explanatory diagram when the electronic guitar of FIG. 1 and a television receiver are used in combination.

FIG. 3 is a block diagram of a system configuration of a musical sound generation device incorporated in the electronic guitar of FIG.

FIG. 4 is a flowchart showing the operation of the CPU in each embodiment.

FIG. 5 is a main flowchart in FIG.

FIG. 6 is a flowchart of image processing in FIG.

FIG. 7 is a flowchart of code display mode processing in FIG.

8 is a flowchart of the first embodiment of the code form display process in FIG.

FIG. 9 is a flowchart of interruption of image data transfer in each embodiment.

FIG. 10 is a diagram showing an image displayed in the first embodiment.

FIG. 11 is a second part of the code form display process in FIG.
The flowchart of an embodiment.

FIG. 12 is a diagram showing an image displayed in the second embodiment.

FIG. 13 is a third part of the code form display process in FIG.
The flowchart of an embodiment.

FIG. 14 is a diagram showing an image displayed in the third embodiment.

[Explanation of symbols]

 21 CPU 22 Position Sensor 23 Trigger Sensor 24 Console Switch 25 Sound Source 27 RAM 28 ROM 29 VDP 30 VRAM

Claims (5)

[Claims] 1. A pitch specifying means for specifying a pitch, a musical tone data transmitting means for transmitting musical tone data of a music piece to be reproduced to a sound source, and a pitch specifying means corresponding to the pitch of the musical tone data to be transmitted. A musical tone generating apparatus comprising: an image output unit that outputs image information for rotating and displaying an operation position on a display screen by a set angle. 2. The musical tone generating apparatus according to claim 1, wherein the image output means outputs, as the image information, an operation position of a chord constituting a chord of the musical tone data to be transmitted. 3. The musical tone generating apparatus according to claim 1, wherein the image output means outputs the operation position of the melody of the transmitted musical tone data as the image information. 4. The musical tone generating apparatus according to claim 1, wherein the image output means outputs image information for displaying the operation position as a mirror image of the player viewed from the opposite side. . 5. The musical sound generating apparatus according to claim 1, wherein the image output means outputs image information indicating a depressed position of a fret of a fingerboard portion of an electronic stringed instrument.