JPH04359296A - Electronic musical instrument - Google Patents

Abstract

PURPOSE:To provide an electronic musical instrument which guides the musical scale of the melody of any desired music without using an optical method. CONSTITUTION:The musical instrument consists of plural keyboards KL and KM, a memory circuit 23 which stores melodies of plural musics, a music selecting circuit 21 which selects an arbitrary music from the stored plural musics, a voice synthesizing circuit 27 which successively synthesizes the musical scale of the melody of the selected music by voice, an output circuit 31 which outputs the synthesized voice and rating circuit 33 which judges whether the musical scale of the voice outputted from the output circuit 31 and the musical scale of the keyboard being operated to correspond to the voice are matched or not.

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 that sequentially guides the scale of a selected piece of music by voice.

0002

2. Description of the Related Art In recent years, various electronic musical instruments have been proposed that can electrically synthesize and output the musical tones of any musical instrument when a keyboard is operated. Further, such an electronic musical instrument is equipped with a storage means for storing the melodies of a plurality of songs, and can guide the position of the scale along the melody of the selected song. That is, each keyboard is provided with a display element such as an LED, and the LEDs provided at positions on the keyboard corresponding to the scale of the selected song are sequentially lit along the melody of the selected song. Therefore, the performer can practice a desired song by operating the corresponding keyboard in accordance with the lit LEDs.

0003

[Problems to be Solved by the Invention] Incidentally, during normal performance, the performer needs to visually check the musical score placed on a music stand or the like and sometimes turn over the pages of the musical score. However, since conventional electronic musical instruments use light to guide the musical scale along the melody of the selected song, the performer must always keep his/her eyes on the keyboard in order to keep an eye on the position of the illuminated LED. For this reason, you don't have to keep your eyes on the keyboard.
There is a need for an electronic musical instrument that can appropriately guide the scale along the melody of a piece of music even when the performer is looking at the sheet music placed on a music stand or the like during normal performance. Ta.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide an electronic musical instrument that can guide the musical scale along the melody of any desired song using a method other than light.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the present invention is constructed with the following requirements. In other words, (a) It must have an electronic musical instrument body with multiple keyboards. (b) The main body of the electronic musical instrument must have a storage means for storing the melodies of a plurality of songs. (c) It has a selection means for selecting an arbitrary song from among the plurality of songs stored in the storage means. (d) It has a voice synthesizing means for sequentially synthesizing the musical scale by voice along the melody of the song selected by the selecting means. (e) It has a voice output means for outputting the voice synthesized by the voice synthesis means. (F) The scale of the audio output from this audio output means,
To have a determining means for determining whether or not the scale of a keyboard operated correspondingly matches the scale.

[0006]

[Operation] The electronic musical instrument according to the present invention has a storage means for storing the melodies of a plurality of songs, and when an arbitrary song is selected from among the plurality of songs stored in the storage means, the selected song is The scales are sequentially synthesized and output along with the melody. At this time, the scale of the audio output from the audio output means,
Determine whether the scale of the operated keyboard matches. In this way, the scale is guided along the melody of the selected song by voice, so the performer listens to the voice guidance in the same posture as when playing normally, while reading the sheet music placed on the music stand etc. You can practice while watching.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of 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 of the electronic musical instrument 1 has 15 scale keys KL and 1
0 semitone keys KM are provided. SP is a speaker. Switch 3 is a mode changeover switch for changing the performance mode to "normal performance mode", "demonstration performance mode", and "guide performance mode". The switch 5 is a count-up switch, and counts up the contents displayed on the display 7. The switch 9 is a countdown switch, and counts down the display contents of the display 7. By operating the switches 5 and 9 to set the display content on the display 7 to a desired value, a song corresponding to the set value is selected from a plurality of pre-stored songs. Switches 4, 6, and 8 are switches for selecting timbres, and select appropriate timbres of musical tones to be played, such as piano, trumpet, drum, and the like. Switch 11 is a start/stop switch. Next, the circuit configuration of the electronic musical instrument 1 will be explained with reference to FIGS. 1 and 3. The mode switching circuit 13 has a switch 3 and outputs a signal corresponding to the switching operation of the switch 3 to the operation switch discrimination circuit 15. The tone selection circuit 17 has switches 4, 6, and 8.
A signal corresponding to the switching operations 6 and 8 is output to the operation switch discrimination circuit 15. The keyboard switch circuit 19 has a switch provided corresponding to each of a plurality of scale keys KL and semitone keys KM, and outputs a signal corresponding to the operation of each switch to the operation switch discrimination 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 multiple switches SW11, SW12, SW13.
,..., SW48 and multiple diodes DD11, DD
For example, when the switch SW11 for selecting a trumpet tone is operated, the terminals P1 and P11 are short-circuited via the diode DD11, and this short-circuit signal is transmitted to the operation switch discrimination circuit 15. Output to. Further, when the keyboard corresponding to "C" of the scale C4 among the plurality of scale keys KL is operated, the corresponding switch SW41 is turned on. As a result, the terminal P1 and the terminal P14 are short-circuited via the diode DD41, and this short-circuit signal is output to the operation switch discrimination circuit 15. The song selection circuit 21 is a selection means for selecting an arbitrary song from among a plurality of songs stored in a storage means, which will be explained later.
It has switches 5 and 9, and outputs a signal corresponding to the operation of the switches 5 and 9 to the operation switch discrimination circuit 15. The operation switch discrimination circuit 15 includes a mode switching circuit 13, a tone selection circuit 17, a keyboard switch circuit 19, or a music selection circuit 21.
When a signal is input from the controller, it determines which switch was operated. The memory circuit 23 is a storage means for storing information related to the melodies of a plurality of songs, and the information on the selected song is called up in response to a calling command from the control section 25. The voice synthesis circuit 27 is a voice synthesis means composed of, for example, a one-chip integrated circuit, and when a desired song is selected by the song selection circuit 21, the selected song is selected according to a control command from the control circuit 25. Sequentially synthesize sounds related to the musical scale of a song. The musical instrument sound synthesis circuit 29 is composed of a ladder circuit or the like, and generates the tone of a specific musical instrument specified by the control circuit 25 in an arbitrary scale by synthesizing a plurality of phoneme signals from the control circuit 25. The output circuit 31 includes an amplifier that amplifies the signal from the voice synthesis circuit 27 or the signal from the musical instrument sound synthesis circuit 29, a speaker SP that amplifies the signal amplified by this amplifier, and the like. Therefore, the output circuit 31 is a voice output means that outputs the voice synthesized by the voice synthesis circuit 27. The scoring circuit 33 is a judgment means for judging whether or not the scale of the sound outputted from the sound output means matches the scale of the keyboard operated correspondingly, and as a result of this judgment, the number of matches is determined. Score accordingly. This scoring circuit 33 and the aforementioned operation switch discrimination circuit 1
5. The control unit 25 is composed of, for example, a one-chip microcomputer. The display circuit 35 is composed of the display 7 and its peripheral circuit section, and displays the score scored by the scoring circuit 33. Further, the display circuit 35 displays the number corresponding to the song selected by the song selection circuit 21.

Next, the operation will be explained with reference to FIG. First, the operation in the "normal performance mode" will be explained. The operation switch discrimination circuit 15 inputs a signal generated by the operation of the mode switching circuit 13, and when it discriminates that the mode has been switched to the "normal performance mode", outputs a discrimination signal to the control circuit 25. Further, the operation switch discrimination circuit 15 inputs the signal from the tone color selection circuit 17, and when it discriminates that an appropriate tone has been selected, outputs a discrimination signal to the control circuit 25. after that,
When a performer plays multiple scale keys KL and semitone keys KM,
Applicable switches SW11, SW12, SW13,...
, SW48 operate, and these signals are sent from the keyboard switch circuit 19 to the control circuit 2 via the operation switch discrimination circuit 15.
5. The control circuit 25 outputs to the musical instrument sound synthesis circuit 29 a control signal consisting of a plurality of phoneme signals for synthesizing a musical tone of the selected timbre and corresponding to the scale of the operated keyboard. The musical instrument sound synthesis circuit 29 synthesizes a plurality of phoneme signals from the control circuit 25 and outputs the synthesized signal to the output circuit 31. For example, if the selected tone is a trumpet,
In addition, when the scale of the operated keyboard is "F" of the scale F4, a signal with a period t1 having a waveform as shown in FIG. 4(A) is output from the musical instrument sound synthesis circuit 29 to the output circuit 31. . In addition, when the selected tone is a trumpet and the scale of the operated keyboard is "F" of the scale F3, the musical instrument sound synthesis circuit 29 generates a cycle shorter than the cycle t1 as shown in FIG. 4(B). The signal at t2 is output to the output circuit 31. Similarly, if the selected tone is piano and the operated keyboard scale is "F" of scale F4,
A signal having a period t1 and having a waveform as shown in FIG. 4(C) is output from the musical instrument sound synthesis circuit 29 to the output circuit 31. Further, when the selected tone is a piano and the scale of the operated keyboard is "F" of the scale F3, the musical instrument sound synthesis circuit 29 generates a cycle shorter than the cycle t1 as shown in FIG. 4(D). The signal at t2 is output to the output circuit 31. The output circuit 31 amplifies and outputs the signal from the musical instrument sound synthesis circuit 29.

Next, the operation in the "demonstration performance mode" will be explained. When the operation switch discrimination circuit 15 receives a signal from the operation of the mode switching circuit 13 and determines that the mode has been switched to the "demonstration performance mode", the operation switch discrimination circuit 15 transmits the discrimination signal to the control circuit 2.
Output to 5. Further, the operation switch discrimination circuit 15 inputs the signal from the song selection circuit 21 and outputs a discrimination signal to the control circuit 25 when it discriminates that an appropriate song has been selected. The operation switch discrimination circuit 15 also includes a tone selection circuit 17.
When it is determined that an appropriate tone color has been selected, a determination signal is output to the control circuit 25. When the switch 11 is operated after a desired song is selected as described above and an appropriate tone color is selected, the desired song is played using the selected tone color. That is, the control circuit 25 reads information related to the melody of the selected song from the memory circuit 23, and outputs a control signal for synthesizing instrumental sounds related to the melody of the read song to the musical instrument sound synthesis circuit 29. . As a result, musical instrument sounds related to the melody of the selected song are automatically synthesized and output from the output circuit 31.

Next, the operation in the "guide performance mode" will be explained. The operation switch discrimination circuit 15 inputs the signal generated by the operation of the mode switching circuit 13, and when it discriminates that the mode has been switched to the "guide performance mode", outputs a discrimination signal to the control circuit 25. Further, the operation switch discrimination circuit 15 inputs the signal from the song selection circuit 21 and outputs a discrimination signal to the control circuit 25 when it discriminates that an appropriate song has been selected. The control circuit 25 reads information related to the melody of the selected song from the memory circuit 23, and outputs a control signal to the voice synthesis circuit 27 for synthesizing a voice related to the scale of the read song. The voice synthesis circuit 27 synthesizes the scale of the selected song by voice and outputs it to the output circuit 31. Therefore, the scales related to the melody of the selected song are sequentially guided by voice. Thereby, the performer can practice the selected piece while listening to the audio guidance and visually checking the musical score placed on a music stand or the like in the same posture as when performing a normal performance. At this time, the musical tone corresponding to the keyboard played by the player is output from the output circuit 31, as in the above-mentioned "normal performance mode". Furthermore, the scoring circuit 33 determines whether or not the scale of the voice synthesized by the voice synthesis circuit 27 matches the scale of the keyboard operated correspondingly. The score will be determined by The score scored by this scoring circuit 33 is displayed on the display 7.

[0011]

[Effects of the Invention] As explained above, the electronic musical instrument according to the present invention has a storage means for storing melodies of a plurality of songs,
When an arbitrary song is selected from among the plurality of songs stored in this storage means, the scale is sequentially synthesized and outputted along the melody of the selected song by voice, and the scale is guided by voice. Therefore, the player can practice while listening to the audio guidance and visually checking the musical score placed on a music stand or the like in the same posture as during normal performance. In addition, since it is configured to determine whether the scale of the audio output from the audio output means matches the scale of the operated keyboard, the effect is that the degree of improvement through practice can be easily recognized. has.

[Brief explanation of the drawing]

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 the tone color selection circuit and keyboard switch circuit of FIG. 1;

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

[Explanation of symbols]

1 Electronic musical instrument 15 Operation switch discrimination circuit 21
Song selection circuit 23 Memory circuit 27 Speech synthesis circuit 31 Output circuit 33 Scoring circuit

Claims (1)

[Claims] [Claim 1] An electronic musical instrument characterized by having the following requirements. (b) Having an electronic musical instrument body with multiple keyboards. (b) The main body of the electronic musical instrument must have a storage means for storing the melodies of a plurality of songs. (c) It has a selection means for selecting an arbitrary song from among the plurality of songs stored in the storage means. (d) It has a voice synthesizing means for sequentially synthesizing the musical scale by voice along the melody of the song selected by the selecting means. (e) It has a voice output means for outputting the voice synthesized by the voice synthesis means. (F) The scale of the audio output from this audio output means,
To have a determining means for determining whether or not the scale of a keyboard operated correspondingly matches the scale.