JP2581972Y2 - Electronic musical instrument - Google Patents

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, and more particularly to an electronic musical instrument in which keys to be operated in accordance with the melody of a selected music piece are sequentially designated by voice or light.

[0002]

2. Description of the Related Art In recent years, various electronic musical instruments have been proposed which can synthesize and output musical tones of an arbitrary musical instrument by operating a keyboard. Further, such an electronic musical instrument is provided with storage means for storing a plurality of songs, and when the melody of the selected song is read, the position of the keyboard corresponding to the note can be guided along the melody of the song. . That is, each of a plurality of keys composed of a full-tone key and a semitone key has L key.
A display element such as an ED is provided, and an LED provided at a keyboard position corresponding to the musical note is sequentially turned on along the melody of the selected music piece. Therefore, the player can practice a desired music by operating the corresponding keyboard in accordance with the lit LED.

[0003]

By the way, during a normal performance, it is necessary for a player to turn a page of a musical score while visually recognizing a musical score placed on a music stand or the like. However, since the conventional electronic musical instrument visually indicates the keyboard corresponding to the note along with the melody of the selected song by light, the player always looks at the keyboard to look at the position of the lit LED. Had to turn. Therefore, even if the performer turns his or her eyes to the music placed on the music stand or the like in the same way as during a normal performance, he does not always look closely at the keyboard, There has been a demand for an electronic musical instrument that can indicate a corresponding key.

The present invention has been made in view of the above problem, and an electronic device capable of appropriately indicating the position of a key corresponding to a musical note along a desired melody of a desired song without always watching the keyboard. The aim is to provide musical instruments.

[0005]

Means for Solving the Problems In order to achieve the above object, the present invention has the following requirements. That is, (a) an electronic musical instrument body having a plurality of keys of a full-tone key and a half-tone key. (B) A light emitting means is provided at a position corresponding to each of the semitone keys. (C) The electronic musical instrument main body has storage means for storing a plurality of pieces of music information. (D) having a selection means for selecting a specific music piece from a plurality of music pieces stored in the storage means; (E) reading means for reading the music selected by the selecting means from the storage means; (F) When the musical note read by the reading means is a whole sound, the sound processing apparatus has first instruction means for instructing a whole sound key to be operated by voice by synthesizing and outputting the whole note name. . (G) When the musical note read by the reading means is a semitone, the musical instrument has second instruction means for driving the light emitting means corresponding to the semitone key and instructing the semitone key to be operated by light. .

[0006]

The electronic musical instrument according to the present invention has storage means for storing a plurality of pieces of music information. When an arbitrary music piece is selected from the plurality of music pieces stored in the storage means, the melody of the selected music piece is selected. Along with the voice of the note of the whole note, and synthesizes and outputs the sound. The whole note key to be operated is audibly indicated by the voice. A light emitting means is provided at a position corresponding to each semitone key, and when a musical note of a read song is a semitone, the corresponding light emitting means is driven to visually operate a semitone key to be operated. To instruct. When the note of the song read in this way is a whole tone, the whole tone key to be operated is instructed audibly by voice, and the less frequent semitone key is indicated by light, so that the player always pays attention to the keyboard. It is possible to practice while viewing a musical score placed on a music stand or the like in a posture similar to that of a normal performance without performing.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment according to the present invention will be described below with reference to the drawings. FIG. 2 is an external view of the electronic musical instrument 1 according to the present invention. The main body 10 of the electronic musical instrument 1 has 15 full tone keys KL
And ten semitone keys KM are provided.
A light emitting diode LD is provided at a position corresponding to M. In the embodiment shown in FIG. 2, the light emitting diode LD is arranged above each semitone key KM.
If it is a position corresponding to the above, it can be provided at an appropriate position such as the main body 10 side. Further, a speaker SP is arranged at the upper left of the main body 10. The switch 3 is a mode changeover switch for switching the performance mode to "normal performance mode", "demo performance mode", and "guide performance mode". The switch 5 is a switch for cout-up, and the display 7
Count up the display contents of. The switch 9 is a switch for counting down, and counts down the contents displayed on the display 7. By operating the switches 5 and 9 to set the display content of the display 7 to a desired value, a song corresponding to the set value is selected from a plurality of songs stored in advance. Further, the display 7 displays the score of the correct answer rate of the operated keyboard in the "guide performance mode" described later in detail. The switches 4, 6, and 8 are switches for selecting a tone color, and select a tone color of a musical tone to be played to an appropriate tone color such as a piano, a trumpet, and a drum. The switch 11 is a start / stop switch for starting or ending the performance.

Next, referring to FIG. 1 and FIG.
Will be described. The mode switching circuit 13 has the switch 3 and outputs a signal corresponding to the switching operation of the switch 3 to the operation switch determination circuit 15. The tone color selection circuit 17 has switches 4, 6, and 8, and outputs a signal corresponding to a switching operation of the switches 4, 6, and 8 to the operation switch determination circuit 15. The keyboard switch circuit 19 has switches that operate according to the operation of each of the plurality of full-tone keys KL and chromatic keys KM, and outputs a signal corresponding to the operation of each switch to the operation switch determination circuit 15.

The tone color selection circuit 17 and the keyboard switch circuit 19 are constituted by a matrix circuit as shown in FIG. This matrix circuit has a plurality of switches SW
, SW48 and a plurality of diodes DD11, DD12, DD13,.
For example, when the switch SW11 for selecting the tone color of the trumpet is turned on, the terminals P1 and P11 are short-circuited via the diode DD11, and this short-circuit signal is output to the operation switch determination circuit 15. Also, of the plurality of whole-tone keys KL, for example, “do” of the scale C4
When the keyboard corresponding to is operated, the corresponding switch SW
41 turns on. As a result, the terminals P1 and P14 are short-circuited via the diode DD41, and this short-circuit signal is output to the operation switch determination circuit 15.

The music selection circuit 21 is a selection means for selecting an arbitrary music piece from a plurality of music pieces stored in a storage means to be described later, and has switches 5 and 9. The signal corresponding to the operation of the operation switch discrimination circuit 15
Output to The operation switch determination circuit 15 receives a signal from the mode switching circuit 13, the tone color selection circuit 17, the keyboard switch circuit 19 or the music selection circuit 21, determines the operated switch, and outputs a determination signal to the control circuit 25. The control circuit 25 executes various control processes according to the determination signal input from the operation switch determination circuit 15. The memory circuit 23 connected to the control circuit 25 is storage means for storing music information related to the melody of a plurality of music pieces.
The selected music information is called in response to a call command from. The voice synthesizing circuit 27 is composed of, for example, a one-chip integrated circuit or the like. When a desired music is selected by the music selection circuit 21, the voice related to the whole note of the music read out in response to a control command from the control circuit 25. Are sequentially synthesized. That is, the voice synthesizing circuit 27 is a first instructing means for instructing, by voice, the whole sound key KL to be operated when the read musical note of the music piece is a full sound. The musical instrument sound synthesizing circuit 29 is composed of a ladder circuit and the like, and synthesizes a plurality of phoneme signals input from the control circuit 25 to thereby convert the sound related to the note specified by the control circuit 25 into the tone of the specified musical instrument. Generate. The output circuit 31 includes an amplifier for amplifying a signal from the voice synthesis circuit 27 or a signal from the musical instrument sound synthesis circuit 29, a speaker SP for amplifying the signal amplified by the amplifier, and the like, and is synthesized by the voice synthesis circuit 27. , Or the musical tones from the musical instrument sound synthesis circuit 29 are sequentially output. Further, the control circuit 25 has a second instructing means for driving the corresponding light emitting diode LD and instructing the semitone key KM to be operated by light when the read musical note of the music piece is a semitone. Further, the control circuit 2
Numeral 5 receives a discrimination signal from the operation switch discrimination circuit 15, and judges whether or not the operated keyboard is correct. That is, the control circuit 25 has first determining means for determining whether or not the whole-tone key designated by the first designating means matches the keyboard operated in accordance with the whole-tone key. And a second determining means for determining whether or not the semitone key specified by the specifying means matches the keyboard operated correspondingly. The scoring circuit 33 performs scoring according to the judgment results of the first and second judgment means. The scoring circuit 33, the operation switch discriminating circuit 15, and the control circuit 25 are constituted by, for example, a one-chip microcomputer. The display circuit 35 is composed of the display 7 and the peripheral road, and displays the points scored by the scoring circuit 33. The display circuit 35
Indicates a number corresponding to the music selected by the music selection circuit 21. The drive circuit 37 connected to the control circuit 25 outputs a drive signal according to a control command from the control circuit 25. The display circuit 39 connected to the drive circuit 37 has a plurality of light emitting diodes LD. When a drive signal from the drive circuit 37 is input, the corresponding light emitting diode is turned on according to the input drive signal.

Next, the operation will be described with reference to FIG. First, the operation in the “normal performance mode” will be described. The operation switch discrimination circuit 15 receives a signal from a switching operation from the mode switching circuit 13 and outputs a discrimination signal to the control circuit 25 when discriminating that the mode has been switched to the “normal performance mode”. The operation switch determination circuit 15 receives a signal from the tone color selection circuit 17 and outputs a determination signal to the control circuit 25 when determining that an appropriate tone has been selected.
Thereafter, when the player plays a plurality of full-tone keys KL and half-tone keys KM, the corresponding switches SW11, SW12, SW1
,..., SW48 operate, and these signals are output from the keyboard switch circuit 19 to the control circuit 25 via the operation switch determination circuit 15. The control circuit 25 outputs a control signal composed of a plurality of phoneme signals for synthesizing a musical tone corresponding to the tone of the operated keyboard, which is a musical tone of the selected tone color, to the musical instrument sound synthesizing circuit 29. Musical instrument sound synthesis circuit 29
Synthesizes a plurality of phoneme signals from the control circuit 25 and outputs them to the output circuit 31. For example, when the selected timbre is a trumpet and the note on the operated keyboard is “F” of the scale F4, the musical instrument sound synthesis circuit 29 executes the process shown in FIG.
A signal having a cycle t1 having a waveform as shown in (A) is output to the output circuit 31. If the selected timbre is a trumpet and the note on the operated keyboard is the “F” of the scale F3, the musical instrument sound synthesis circuit 29 executes FIG.
A signal having a cycle t2 shorter than the cycle t1 as shown in FIG. Similarly, when the selected timbre is a piano and the note of the keyboard operated once is the "F" of the scale F4, the musical instrument sound synthesis circuit 29 outputs the tone of FIG.
A signal having a cycle t1 having a waveform as shown in (C) is output to the output circuit 31. When the selected timbre is a piano and the note on the operated keyboard is “F” of the scale F3, the musical instrument sound synthesis circuit 29 outputs a cycle shorter than the cycle t1 as shown in FIG. The signal of t2 is output circuit 3
1 is output. The output circuit 31 amplifies and outputs the signal from the musical instrument sound synthesis circuit 29.

Next, the operation in the "demo performance mode" will be described. The operation switch discrimination circuit 15 inputs a signal by a switching operation from the mode switching circuit 13 and, when judging that the mode has been switched to the “demo performance mode”, outputs a discrimination signal to the control circuit 25. Also, an operation switch discrimination circuit 1
5 receives a signal from the music selection circuit 21 and, when determining that an appropriate music has been selected, outputs a determination signal to the control circuit 25. The operation switch determination circuit 15 receives a signal from the tone color selection circuit 17 and outputs a determination signal to the control circuit 25 when determining that an appropriate tone has been selected. As described above, when the switch 11 is operated after a desired song is selected and an appropriate tone is selected, the performance of the desired song is started with the selected tone. That is, the control circuit 25 reads information on the melody of the selected music piece from the memory circuit 23 and outputs a control signal for synthesizing the instrumental sound of the read music piece to the musical instrument sound synthesis circuit 29. . As a result, the instrument sounds related to the melody of the selected music are automatically synthesized and output from the output circuit 31.

Next, the operation in the "guide performance mode" will be described. The operation switch discrimination circuit 15 receives a signal from a switching operation from the mode switching circuit 13 and, when discriminating that the mode has been switched to the “guide performance mode”, outputs a discrimination signal to the control circuit 25. The operation switch discrimination circuit 15 receives a signal from the song selection circuit 21 and, when judging that an appropriate song has been selected, outputs the discrimination signal to the control circuit 2.
Output to 5 The control circuit 25 reads the information related to the melody of the selected music piece from the memory circuit 23 and outputs a control signal for synthesizing the voice related to the note of the read music piece to the voice synthesis circuit 27. The voice synthesizing circuit 27 synthesizes voices related to the notes of the selected music piece and outputs the synthesized voice to the output circuit 31. Therefore, the output circuit 31 sequentially outputs a sound indicating the whole sound key as a guide sound along the melody of the selected music piece. This allows the performer to listen to the voice guidance in the same position as during normal performance,
The user can practice the selected song while visually recognizing the music score placed on a music stand or the like. If the read musical note is a semitone, the drive circuit 37 drives the display circuit 39 in response to a control command from the control circuit 25, and turns on the corresponding light emitting diode LD to perform the operation. The power semitone key KM is indicated by light. Thus, the player can practice by operating the keyboard in accordance with the instruction of the light emitting diode LD. At this time, the first judging means judges whether or not the whole sound key indicated by the first indicating means coincides with the keyboard operated correspondingly, and the second judging means judges whether the second key has the second key. It is determined whether or not the semitone key designated by the designating means matches the keyboard operated correspondingly. Then, when the scoring circuit 33 performs scoring according to the result of this determination, the scoring points are displayed on the display 7.

Next, the judgment processing by the judgment means will be described with reference to FIGS. In step S1, it is determined whether or not the processing mode is the key check end mode. If the processing mode is the key check end mode, the process proceeds to step S3. In step S3, it is determined whether the output of the guide sound has been completed. If the output of the guide sound has been completed, the process proceeds to step S5. In step S5, the next guide sound is output. Subsequently, in step S7, a key check request mode is set. Next, step S
In step 9, it is determined whether a key operation has been performed, that is, whether a keyboard has been operated. If any key has been operated, the process proceeds to step S11. Step S11 has a function as a gate, and proceeds to step S13 only when the processing mode is the key check request mode, and determines whether the operated keyboard is right or wrong. If the processing mode is not the key check request mode in the step S11, the right / wrong judgment of the keyboard operation is prohibited.

Here, at time t1 as shown in FIG.
For example, when an erroneous keyboard is operated, it is determined in step S9 that a key operation has been performed, and step S1 is performed.
The process proceeds to step 1 to determine whether the processing mode is the key check request mode. Since the key check request mode has been set in step S7, the process proceeds from step S11 to step S13. In step S13, it is determined whether or not the above-mentioned guide sound matches the keyboard operated correspondingly. If it is determined that the operated keyboard is incorrect, steps S13 to S15 are performed.
Proceed to. In step S15, an error sound indicating that the operated keyboard is incorrect is output. Then, step S1
In step 7, the count value of an error counter for counting errors in keyboard operation is incremented by one.

Next, when the correct key is operated at time t3 as shown in FIG. 6B, it is determined in step S9 that a key operation has been performed, and the flow advances to step S13 via step S11. . In step S13, it is determined whether or not the guide sound matches the keyboard operated correspondingly. If it is determined that the operated keyboard is correct, the process proceeds from step S13 to step S19. In step S19, the key sound of the operated key, that is, the musical sound of the correct keyboard is output. Subsequently, in step S21, the processing mode is set to the key check end mode. As a result, the gate is closed. As described above, the configuration of the processing mode having the function as a gate is configured to execute the right / wrong judgment of the keyboard operation only when the key check request mode is set, so that the key check request mode is set. Thus, not only a correct keyboard operation but also an incorrect keyboard operation can be detected.

[0017]

As described above, in the electronic musical instrument according to the present invention, when an arbitrary music piece is selected from a plurality of music pieces stored in the storage means, the whole tone of the whole sound is selected according to the melody of the selected music piece. Voices related to the notes are sequentially synthesized and output, and a sound key to be operated is audibly indicated by voice. A light emitting means is provided at a position corresponding to each semitone key, and when a musical note of a read song is a semitone, the corresponding light emitting means is driven to visually operate a semitone key to be operated. To instruct. In the case where the musical note read in this way is a whole tone, the whole tone key to be operated is instructed audibly by voice, and the less frequent semitone key is instructed by light. This has the effect that it is possible to practice while visually recognizing a musical score placed on a music stand or the like in a posture similar to that of a normal performance without always watching the keyboard.

[Brief description of the drawings]

FIG. 1 is a block diagram of an electronic musical instrument according to the present invention.

FIG. 2 is an external view of the electronic musical instrument according to the present invention.

FIG. 3 is a circuit diagram showing a specific example of a tone color selection circuit and a keyboard switch circuit of FIG. 1;

FIG. 4 is a waveform diagram showing an example of a signal synthesized by the musical instrument sound synthesis circuit.

FIG. 5 is a flowchart showing a right / wrong judgment process of an operated keyboard.

FIG. 6 is a timing chart according to the determination processing of FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electronic musical instrument 15 Operation switch discrimination circuit 21 Music selection circuit 23 Memory circuit 25 Control circuit 27 Voice synthesis circuit 31 Output circuit 33 Scoring circuit

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-174597 (JP, A) JP-A-60-70892 (JP, U) JP-A-58-81556 (JP, U) 64980 (JP, U) Actually open 58-144373 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] An electronic musical instrument having the following requirements. (B) To have an electronic musical instrument main body provided with a plurality of keys of full-tone keys and semi-tone keys. (B) A light emitting means is provided at a position corresponding to each of the semitone keys. (C) The electronic musical instrument main body has storage means for storing a plurality of pieces of music information. (D) having a selection means for selecting a specific music piece from a plurality of music pieces stored in the storage means; (E) reading means for reading the music selected by the selecting means from the storage means; (F) A first instruction means for instructing, by voice, a whole sound key to be operated by synthesizing and outputting the whole note name on a place where the note of the music read by this reading means is a whole sound. thing. (G) When the musical note read by the reading means is a semitone, the musical instrument has second instruction means for driving the light emitting means corresponding to the semitone key and instructing the semitone key to be operated by light. .