JPH0511687A - Automatic player with singing ability evaluating function - Google Patents

Abstract

PURPOSE:To offer the automatic player with the singing ability evaluating function which has an orchestral accompaniment function enabling a song to be sung to an accompaniment and the singing ability evaluating function and makes the singer feel that the singing ability is evaluated and is suitable for the intellectual training of an infant. CONSTITUTION:The automatic player which automatically plays a music by generating a musical sound according to previously stored musical sound data consists of a converting means 25 which inputs and converts a voice into a singing signal, a signal generating means 23 which generates a trigger signal at specific intervals while the musical sound is generated, a 1st counting means 16 which counts how many times the trigger signal is generated by the signal generating means 23, a 2nd counting means 26 which counts whether or not the singing signal converted by the converting means 26 is present or not when the trigger signal is generated by the signal generating means, a calculating means 17 which calculates an evaluation result according to the rate of the number counted by the 2nd counting means 26 to the number counted by the 1st counting means 16, and an annunciating means 19 which annunciates the evaluation result calculated by the calculating means 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic performance device having a singing ability evaluation function suitable for intellectual education, which is capable of evaluating a voice sung according to accompaniment.

[0002]

2. Description of the Related Art In recent years, an automatic performance device having a so-called karaoke function, which allows a music piece to be sung on an accompaniment sound emitted, has been put into practical use and has come into widespread use.

Such an automatic performance device having a karaoke function records accompaniment sound information on a recording medium such as a cassette magnetic tape, an optical disk, or a read only memory (ROM), and the accompaniment sound information is used when the accompaniment sound information is used. During reproduction, the accompaniment sound and the sound are mixed and emitted by emitting a sound (melody) to the microphone on the accompaniment sound.

In addition, as an automatic performance device having a karaoke function, one having a singing ability evaluation function (scoring function) is known.

An apparatus for evaluating such singing power is a multi-track cassette magnetic tape or optical disk ROM.
A model singing signal, which is a pass / fail judgment reference signal, is stored together with an accompaniment signal in a recording medium such as, and the pitch and slowness of the sound of the singing signal input from the microphone are compared with that of the model singing signal. It is designed to be graded.

By the way, the karaoke device is not suitable for infants.
It is generally known that it is very useful for rhythm sense education, and there is a demand for a device that allows an infant to be interested and familiar with it.

Therefore, an automatic performance device incorporating a singing ability evaluation device has been developed as a toy for infants. On this occasion,
As the singing ability evaluation device, if the singing ability evaluation means in the conventional karaoke device is used as it is, the price becomes high and
Since the scoring standard is strict and it is not suitable as a toy for infants, a simple singing ability evaluation device has been developed.

For example, at a scoring point set at a position where a song should be sung along with an accompaniment signal, it is easy and inexpensive to judge whether or not there is an input larger than a predetermined pass / fail judgment voltage from a microphone. Some singing ability evaluation devices have been realized (Japanese Patent Laid-Open No. 64-2059).
0).

However, according to this singing ability evaluation device, although the singing ability is judged according to the accompaniment signal, since the structure is simple, a large sound is generated regardless of the development of the music to be played. There was a problem that even if you continued to input, the score was perfect, and it was difficult to obtain the feeling that the singing ability was actually evaluated.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has a karaoke function capable of singing a music piece accompanied by an accompaniment sound and a singing ability evaluation function thereof. It is an object of the present invention to provide an automatic performance device with a singing ability evaluation function, which is suitable for intellectual education of infants who can get a feeling of being evaluated.

[0011]

In order to achieve the above-mentioned object, an automatic performance device with a singing ability evaluation function according to a first aspect of the present invention automatically generates a musical tone based on musical tone data stored in advance. In the automatic performance device for performing the above, a converting means for inputting voice and converting into a singing signal, a signal generating means for generating a trigger signal at a predetermined interval while a musical sound is generated, and a trigger signal generated by the signal generating means. First counting means for counting the number of times generated, second counting means for counting the presence or absence of a singing signal converted by the converting means when a trigger signal is generated by the signal generating means, and the second counting means. Calculating means for calculating an evaluation result according to the ratio of the number counted by the second counting means to the number counted by one counting means; and notifying means for notifying the evaluation result calculated by the calculating means To Characterized in that Bei was.

In addition, the automatic performance device with a singing ability evaluation function of the second aspect produces an automatic performance by generating a musical tone based on musical tone data which is stored in advance and includes at least model singing data. In an automatic performance device, a converting means for inputting a voice and converting into a singing signal, a signal generating means for generating a trigger signal at a predetermined interval while a musical sound is generated, and a trigger signal generated by the signal generating means. When the trigger signal is generated by the third counting means and the signal generating means, the presence or absence of the singing signal converted by the converting means is counted when the trigger signal is generated by the signal generating means. Second counting means, a calculating means for calculating an evaluation result according to the degree of proximity of the number counted by the third counting means and the number counted by the second counting means, and the calculating means. means The calculated evaluation results, characterized by comprising a notification means for notifying.

[0013]

According to the first aspect of the invention, the singing ability is evaluated by utilizing the characteristic that the proportion of the entire song to be sung except the prelude and interlude is predetermined.

That is, the proportion to be sung is stored in advance as an evaluation reference value. Then, when the automatic performance is started, a trigger signal is generated at a predetermined interval regardless of the progress of the music, the number of times the trigger signal is generated is counted, and a voice is input when the trigger signal is generated. Whether or not there is voice, for example, the number of times that voice is present is counted.

When the music is finished, the number of times the voice is present is calculated with respect to the counted number of trigger signals, and the ratio of the voice with respect to the entire music is calculated and compared with the above evaluation reference value. The evaluation result is notified to the singer according to the degree of proximity.

In the second aspect of the invention, since the automatic performance device includes, for example, melody data in addition to accompaniment data, the singing ability is evaluated by using this melody data as model singing data. It is a thing.

That is, when the automatic performance is started, a trigger signal is generated at a predetermined interval irrespective of the progress of the music, and it is judged whether or not a voice is input when the trigger signal is generated. The presence or absence of voice, for example, the number of times voice is present is counted.

At the same time, at the timing when the trigger signal is generated, the presence / absence of melody data read along with the automatic performance, for example, the number of times a melody exists is counted.

When the music is finished, the counted number of times of voice input and the counted number of times of melody are compared,
The evaluation result is notified to the singer according to the degree of proximity.

As a result, the karaoke function of singing a piece of music accompanied by an accompaniment can be realized, and the situation in which the singing ability is evaluated only by continuously producing sound is avoided, and the singing ability is evaluated. It is possible to realize a singing ability evaluation function that gives the feeling of being present.

Further, unlike the singing ability evaluation means in the conventional karaoke apparatus, it has a simple structure and can be realized at a low price, and since the scoring standard is not strict, it is suitable as a toy for infants.

[0022]

1 is a block diagram schematically showing the overall construction of a first embodiment of an automatic performance device with a singing ability evaluation function according to the present invention.

In the figure, reference numeral 10 denotes a keyboard, which detects a key-depressing / key-releasing operation of a player and supplies it to the musical tone generating circuit 19. The keyboard 10 includes a plurality of keys, a key switch that opens and closes in conjunction with key press / release of these keys, a key scan circuit that detects the open / closed state of these key switches, and the like.

The on / off signals of all the keys detected by the key scan circuit are sent to the tone generating circuit 19.

Reference numeral 11 denotes an operation panel, which is provided with various switches for controlling the automatic performance device, a display device for displaying status and messages, and the like. In the figure, the parts related to the present invention are mainly shown.

The switch SW1 in the operation panel 11 is a start / stop switch for automatic performance. The start / stop switch SW1 is a toggle switch that reverses the start state and the stop state each time it is pressed.

SW2 is a scoring switch. When the scoring switch SW2 is pressed when the operation in the karaoke performance mode is completed, the scoring switch SW2 informs the singer of the evaluation result.

SW3 is a karaoke switch. By pressing the karaoke switch SW3, the karaoke performance mode is set, and the melody sound is erased and only the accompaniment sound is output. As will be described later, this melody sound is used as a model singing signal in the karaoke performance mode.

When the karaoke switch SW3 is pressed, the volume of the melody can be reduced instead of completely deleting the melody sound. With this configuration, it is possible to realize a karaoke function that is easier to sing.

SW4 is described as a representative of other switches. Other switches include, for example, a tone color selection switch for selecting a tone color and a selection switch for selecting various effects.

The ON / OFF states of these various switches are detected by a panel scan circuit (not shown) and supplied to the CPU 14.

Reference numeral 12 is a display provided on the operation panel 11. The display 12 is composed of, for example, a numerical display with 7-segment LEDs. This indicator is turned on or off according to a signal from the evaluation result control unit 18 of the CPU 14. The display 12 displays, for example, evaluation results and other various information.

Reference numeral 13 is a read-only memory (ROM) which, in addition to a control program (not shown) for operating the CPU 14 described later, informs accompaniment data, melody data and evaluation results directly related to the features of the present invention by sound. For example, fanfare data and an evaluation reference value for calculating an evaluation result are stored. Further, the ROM 13 stores tone color data and various other fixed data (none of which is shown).

Here, the "evaluation reference value" is a value indicating the proportion of the portion to be sung except the prelude, interlude, etc. in the entire predetermined music, and is calculated in advance for each music.
It is stored in M13.

Reference numeral 14 denotes a central processing unit (CPU), R
It controls each section of the automatic musical instrument according to a control program stored in a program memory section (not shown) of the OM 13.

The CPU 14 has, as its main functions, a read control unit 15, an input determination control unit 16, a comparison scoring unit 17,
The evaluation result control unit 18 is realized by software. Details of these units will be described later.

Reference numeral 23 is a timer, which generates a pulse signal at a constant interval regardless of the tempo or the like of the automatically playing music. The output of the timer 23 is the CPU 1
4 and is used as a trigger signal for operating the input determination control unit 16.

Reference numeral 24 denotes a storage unit, which is composed of, for example, a random access memory (RAM). This storage unit 24
Are accessed by the CPU 14. More specifically, the input determination control unit 16 of the CPU 14 performs writing, and the comparison scoring unit 17 performs reading. The storage unit 24 is provided with a "trigger signal counter" that counts the number of times a trigger signal is generated and an "input determination counter" that counts the presence or absence of voice input.

Reference numeral 25 denotes a microphone, which is a well-known microphone that inputs voice and outputs a singing signal as an electric signal. The output of the microphone 25 is the input determination unit 26.
And the amplifier 21.

The input judging section 26 is composed of, for example, a comparator, compares the singing signal from the microphone 25 with a predetermined reference voltage, and if the singing signal is equal to or higher than the reference voltage, "1", singing signal Is smaller than the reference voltage, "0" is output.

Therefore, if the output of the input judging section 26 is "1", it is judged that there is voice input, and if it is "0", there is no sound input. The output of the input determination unit 26 is supplied to the input determination control unit 16 of the CPU 14.

Next, each section of the CPU 14 described above will be described in detail. The read control unit 15 of the CPU 14 selects the data to be read according to the pressed state of each switch of the operation panel 11 and supplies the selected data to the tone generation circuit 19.

For example, the start / stop switch SW
By pressing 1 and instructing to start automatic performance,
Accompaniment data and melody data are read out, and normal automatic performance is performed.

When the karaoke switch SW3 is pressed,
The reading of the melody data is suppressed, and the karaoke performance mode is set in which only the accompaniment data is read.

Further, when the scoring switch SW2 is pressed, the fanfare data is read out, and a predetermined fanfare or the like is sounded under the control of the evaluation result control section 18.

When the karaoke performance mode is designated by the karaoke switch SW3 of the operation panel 11, the input determination control section 16 receives the trigger signal from the timer 23 each time.
The number of times the trigger signal is generated is counted on the storage unit 24. Each time the trigger signal from the timer 23 is input, the determination result signal is input from the input determination unit 26, and the number of times of voice input (“1”) is counted on the storage unit 24.

When the scoring start is instructed by the scoring switch SW2 of the operation panel 11, the comparison scoring unit 17 calculates the ratio of the number of times of voice input with respect to the number of times the trigger signal is stored in the storage unit 24, and the ROM 13 It is compared with the evaluation reference value stored in. Then, an evaluation result is generated such that the closer the calculated value is to the evaluation reference value, the higher the score. The evaluation result is supplied to the evaluation result control unit 18.

The evaluation result control unit 18 controls the musical sound generation circuit 19 according to the evaluation result output from the comparison scoring unit 17, and generates the musical sound based on the fanfare data read from the ROM 13 by the read control unit 15. ,
The scoring result is displayed on the display 12 of the operation panel 11 according to the evaluation result output by the comparative scoring unit 17.

Reference numeral 19 denotes a tone generation circuit, which reads tone waveform data and envelope data corresponding to the tone color designated by the control data output from the keyboard 10 or the CPU 14 from the waveform memory 20 and adds an envelope to the read tone waveform data. It is added and output as a tone signal. The musical tone signal output from the musical tone generating circuit 19 is supplied to the amplifier 21.

The waveform memory 20 stores the tone waveform data and the envelope data corresponding to each tone color, as described above.

The amplifier 21 amplifies the musical tone signal supplied from the musical tone generating circuit 19 with a predetermined gain and supplies it to the speaker 22. In addition, the audio signal from the microphone 25 is also supplied to the amplifier 21. Therefore, the tone signal generated by the tone generation circuit 19 and the audio signal supplied from the microphone 25 can be simultaneously amplified and output.

Next, the operation of the first embodiment of the present invention having the above structure will be described with reference to the flow charts shown in FIGS.

First, when the power is turned on, initialization processing is performed (step S10). In this initialization processing, the internal state of the tone generation circuit 19 is set to the initial state to prevent unnecessary sounds from being produced when the power is turned on, and to clear the contents of the RAM and the storage unit 24 not shown. Processing.

Next, key processing is performed (step S1).
1). In this key processing, sounding / silence processing is performed in accordance with the key depression / key release of the keys of the keyboard 10. The operation of this key processing is well known and is not directly related to the gist of the present invention, and thus detailed description thereof will be omitted.

Then, a panel scan process is performed (step S12). That is, the on / off state of each switch detected by the panel scan circuit of the operation panel 11 is read by the CPU 14 and stored in the RAM (not shown).

Then, it is checked whether or not there is an on event in the switch of the operation panel 11 (step S1).
3). This is the on / off state of each switch taken from the operation panel 11 last time (stored in the RAM).
Is compared with the on / off state of each switch taken in from the operation panel 11 this time to check whether or not there is a newly turned on switch.

When it is determined that there is no on event, the process branches to step S23 to perform automatic performance processing.

On the other hand, when it is determined that there is an on event, the switch turned on is the karaoke switch SW.
It is checked whether or not it is 3 (step S14).

When it is determined that the karaoke switch SW3 is turned on, it is checked whether or not the flag KFLG is "1" (step S15). here,
The flag KFLG is a flag that stores whether or not the karaoke performance mode is set, and is provided in a RAM (not shown).

When it is determined in step S15 that the flag KFLG is not "1", the flag KFLG is set to "1" (step S16). Next, the trigger signal counter and the input determination counter provided in the predetermined area of the storage unit 24 are cleared to zero (step S17). After that, the process branches to step S23 to start the automatic performance process.

On the other hand, in step S15, the flag KF
When it is determined that LG is "1", the flag KFL
G is reset to "0" (step S18), and then the process branches to step S23 to start the automatic performance process.

The toggle function of the karaoke switch SW3 is realized by the steps S15, S16 and S18.

If it is determined in step S14 that the switch for which the on event occurred is not the karaoke switch SW3, it is checked whether or not it is the scoring switch SW2 (step S19).

If it is determined that the switch is the scoring switch SW2, a scoring result calculation process is performed (step S20). This is because the comparison scoring unit 17 is driven to calculate the ratio of the number of times of voice input with respect to the number of times of generation of the trigger signal stored in the storage unit 24 as described above, and the evaluation stored in the ROM 13 is performed. This is a process of comparing with a reference value and generating an evaluation result such that the closer the calculated value is to the evaluation reference value, the higher the score.

Then, a marking result display / sound generation process is performed (step S21). This is the evaluation result control unit 18
Is driven to control the tone generation circuit 19 in accordance with the evaluation result output from the comparison scoring unit 17, and the read control unit 1
5 produces a musical sound based on the fanfare data read from the ROM 13. Thereby, depending on the evaluation result, for example, a fanfare is generated when the score is high, and a buzzing sound is generated when the score is low.

At the same time, the scoring result is displayed on the display 12 of the operation panel 11 according to the evaluation result. The scoring result is displayed as a numerical value with 100 as a perfect score, for example.

On the other hand, if it is determined in step S19 that the switch for which the on event has occurred is not the scoring switch SW2, processing corresponding to the depression of another switch is performed (step S22). For example, tone color selection processing,
Volume change processing and the like will be performed.

Then, the automatic performance process from step S23 is performed.

In this automatic performance process, first, it is checked whether or not the automatic performance start / stop switch SW1 is set to start (step S23). And
If it is determined that it has not started, the process returns to step S11, and the same processing as described above is repeatedly executed.

On the other hand, the start / stop switch SW1
If it is determined that the start has started, flag K
It is checked whether FLG is "1" (step S).
24). Here, if the flag KFLG is "1", it means the karaoke performance mode, and if it is "0", it means the normal automatic performance mode.

Therefore, when it is determined that the flag KFLG is "0", it is recognized that the normal automatic performance mode is set, and data reading is first performed (step S25). That is, the read control unit 15 reads the accompaniment data and the melody data from the ROM 13.

Next, a tone generation process is executed (step S26). That is, the read control unit 15 sends the read accompaniment data and melody data to the tone generation circuit 19. Then, a musical tone signal is generated by the musical tone generating circuit 19 and sent to the speaker 22 via the amplifier 21, and a normal automatic performance consisting of an accompaniment tone and a melody tone is performed. Then, it returns to step S11 and repeats the same processing again.

On the other hand, in step S24, the flag KF
When LG is determined to be "1", it is recognized that the karaoke performance mode is set, and data reading is first performed (step S27). That is, the read control unit 15 controls the R
Only the accompaniment data is read from the OM 13.

Next, it is checked whether it is the scoring timing (step S28). This is performed by the input determination control unit 16 by checking whether or not a trigger signal is coming from the timer 23.

When it is determined that it is not the scoring timing, the process branches to step S26 to perform the tone generation process. That is, the read control unit 15 sends the accompaniment data to the tone generation circuit 19. As a result, a musical tone signal is generated by the musical tone generating circuit 19 and is transmitted via the amplifier 21 to the speaker 22.
And the accompaniment sound is emitted. At this time, if a voice signal is output from the microphone 25, the accompaniment and voice are output at the same time.

On the other hand, when it is determined in step S28 that it is the scoring timing, microphone input determination processing is performed (step S29). The microphone input determination process is a process performed by the input determination unit 26. That is, as described above, the comparator compares the singing signal from the microphone 25 with a predetermined reference voltage,
If the singing signal is equal to or higher than the reference voltage, "1" is output, and if the singing signal is smaller than the reference voltage, "0" is output.

Then, a judgment result storing process is performed (step S30). That is, the input determination control unit 16 increments the trigger signal counter provided in the storage unit 24, and at the same time, indicates the data received from the input determination unit 26, that is, “1” indicating the presence of voice input, or the absence of voice input. “0” is added to the input determination counter provided in a predetermined area of the storage unit 24. As a result, the number of times of voice input is counted. After that, the process branches to step S26 to perform sound generation processing.

As described above, according to this embodiment, the ratio of the entire song to be sung is set as the evaluation reference value in advance as R.
When it is stored in the OM 13 and the automatic performance is started, the timer 23 causes the trigger signal to be generated at a constant interval regardless of the progress of the music, the number of times the trigger signal is generated is counted, and the trigger signal is Whether or not voice is input when it is generated is determined, and the presence or absence of voice is sequentially stored in the storage unit 24.

Then, when the music is finished, the ratio of the presence of the sound is calculated with respect to the counted number of trigger signals, and the ratio of the presence of the sound to the entire music is calculated and compared with the above evaluation reference value. The predetermined evaluation result is notified to the singer by a sound (fanfare) or the display device 12.

As a result, the karaoke function of singing a piece of music accompanied by an accompaniment can be realized, and the situation in which the singing ability is evaluated only by continuously producing a sound is avoided, and the singing ability is evaluated. It realizes the singing ability evaluation function that gives the feeling of being present.

Further, unlike the singing ability evaluation means in the conventional karaoke apparatus, it has a simple structure and can be realized at a low price, and since the scoring standard is not strict, it is suitable as a toy for infants.

Next, a second embodiment of the present invention will be described. FIG. 4 is a block diagram schematically showing the overall configuration of the second embodiment of the automatic performance device with a singing ability evaluation function according to the present invention. In the following description, the same or corresponding parts as those shown in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted.

In FIG. 4, reference numeral 30 is a RAM, in which accompaniment data and melody data are stored. The contents stored in the RAM 30 are accompaniment data and / or melody data played by the performer using the keyboard 10.

The accompaniment data and the melody data may be stored in both the ROM 13 and the RAM 30. In this case, the accompaniment data and melody data of the music prepared in advance in the automatic performance device are stored in the ROM 13, and the accompaniment data and melody data played by the performer are stored in the RAM 30.

Further, the accompaniment data may be stored in the ROM 13 and only the melody data played by the performer may be stored in the RAM 30.

The contents of the RAM 30 are read by the read control unit 15 of the CPU 14, and the write control unit 31 is also used.
Written by.

The write controller 31 is a function realized by the software of the CPU 14. The writing control unit 31 controls the writing of the accompaniment data and melody data played by the keyboard 10 into the RAM 30. As a result, the performer can automatically play an arbitrary piece of music that he has played.

The output of the read control section 15 is supplied to the tone generation circuit 19 as in the first embodiment described above, and is also supplied to the input determination control section 16. This is used for supplying the melody data to the input determination control unit 16 and determining whether or not there is a melody in the input determination control unit 16, as described later.

Further, the storage unit 24 has a "melody counter" for counting the presence / absence of melody data as model song data and an "input determination counter" for counting the presence / absence of voice input when a trigger signal is generated. It is provided.

In this embodiment, it is not necessary to store the evaluation reference value in the ROM 13.

Next, the operation of the second embodiment having the above-mentioned structure will be described with reference to the flow charts shown in FIGS.

The same or corresponding parts as those in the flowcharts shown in FIGS. 2 and 3 are designated by the same reference numerals to simplify the description. The accompaniment data and the melody data are already stored in the RA 30.

First, when the power is turned on, initialization processing is performed (step S10). Next, key processing and panel scanning processing are performed (steps S11 and S12), and it is checked whether or not there is an on event in the switch of the operation panel 11 (step S13). When it is determined that there is no on event, the process branches to step S23 to perform automatic performance processing.

On the other hand, when it is determined that there is an on event, the switch turned on is the karaoke switch SW.
3 is checked (step S14), and if it is determined that the karaoke switch SW3 is set, the toggle function of the karaoke switch SW3 is realized. That is, the flag KFLG is inverted from the current state (step S1).
5, S16, S18). The above operation is the same as in the first embodiment described above.

When the karaoke switch SW3 is turned on, after the flag KFLG is set to "1", the melody counter and the input determination counter provided in a predetermined area of the storage unit 24 are cleared to zero. (Step S17). After that, the process branches to step S23 to start the automatic performance process.

When it is determined in step S14 that the switch having the on event is not the karaoke switch SW3, it is checked whether or not it is the scoring switch SW2 (step S19), and it is determined that it is not the scoring switch SW2. Then, processing corresponding to the depression of other switches is performed (step S22).

On the other hand, if it is determined that the switch is the scoring switch SW2, scoring result calculation processing is performed (step S
40). This scoring result calculation process is different from that of the first embodiment described above. That is, by driving the comparison scoring unit 17, the contents of the melody counter stored in the storage unit 24 are compared with the contents of the input determination counter. Then, it is a process of generating an evaluation result such that the closer these are to each other, the higher the score is.

Then, a marking result display / sound generation process is performed (step S21). Similar to the above-described first embodiment, this sounds a fanfare according to the evaluation result and displays the scoring result on the display unit 12.

Then, the automatic performance process from step S23 is performed.

In this automatic performance process, first, it is checked whether or not the start / stop switch SW1 of the automatic performance is started (step S23), and if it is determined that it is not started, the process proceeds to step S11. Return.

On the other hand, the start / stop switch SW1
If it is determined that the start has started, flag K
It is checked whether FLG is "1" (step S2).
4) If it is determined that the flag KFLG is "0", the accompaniment data and the melody data are read from the RAM 30 because the normal automatic performance mode is set (step S25), and the sound generation process is executed. (Step S26). In this case, since both the accompaniment data and the melody data are supplied to the musical sound generating circuit 19, the musical sound composed of the accompaniment and the melody is emitted and the automatic performance is performed.
Then, it returns to step S11 and repeats the same processing again.

On the other hand, in step S24, the flag KF
If it is determined that LG is "1", it means that the karaoke performance mode is set, and thus data reading is performed (step S27). In this case, the read control unit 15 reads the accompaniment data and the melody data from the ROM 13. However, only the accompaniment data is supplied to the tone generation circuit 19, and the melody data is supplied to the input determination control unit 16.

Then, it is checked whether it is the scoring timing (step S28). This is performed by the input determination control unit 16 by checking whether or not a trigger signal is coming from the timer 23.

If it is determined that it is not the scoring timing, the process branches to step S26 to perform a sounding process. At this time, if a voice signal is output from the microphone 25, the accompaniment and voice are output at the same time.

On the other hand, if it is determined in step S28 that it is the scoring timing, microphone input determination processing is performed (step S29). The microphone input determination process is a process performed by the input determination unit 26. That is, as described above, the comparator compares the singing signal from the microphone 25 with a predetermined reference voltage,
If the singing signal is equal to or higher than the reference voltage, "1" is output, and if the singing signal is smaller than the reference voltage, "0" is output.

Then, a determination result storing process is performed (step S30). That is, the input determination control unit 16 sets the data received from the input determination unit 26, that is, “1” indicating the presence of voice input or “0” indicating the absence of voice input.
It is added to an input determination counter provided in a predetermined area of the storage unit 24. As a result, the number of times of voice input is counted.

Then, a melody input determination process is performed (step S31). That is, the input determination control unit 16 analyzes whether the melody data read by the read control unit 15 is data to be sounded at the timing,
If it is data to be pronounced, "1" is generated, and if it is not data to be pronounced, "0" is generated.

Then, a determination result storing process is performed (step S32). That is, the input determination control unit 16 stores the previously generated data, that is, “1” indicating that there is a melody or “0” indicating that there is no melody in the storage unit 24.
Is added to the melody counter provided in the predetermined area of.
As a result, the number of times the melody exists at the scoring timing is counted. After that, the process branches to step S26, the sound generation process is performed and the process returns to step S11.

As described above, when the automatic performance is started,
A trigger signal is generated at a constant interval by a timer 23 regardless of the progress of the music, and it is determined whether or not voice is input when the trigger signal is generated, and the presence or absence of voice is sequentially input to the storage unit 24. It is stored in the judgment counter.

At the same time, the presence / absence of the melody data read out in association with the automatic performance is stored in the melody counter of the storage section 24 at the timing when the trigger signal is generated.

When the music is finished, the storage unit 24
The number of times of voice input and the number of times of melody stored in are compared, and the evaluation result is notified to the singer according to the degree of proximity.

As a result, similar to the first embodiment described above, it is possible to realize a karaoke function of singing a piece of music along with an accompaniment, and it is possible to evaluate the singing ability by simply continuing to generate a voice. The situation is avoided, and a singing ability evaluation function that gives a feeling that the singing ability is being evaluated is realized.

Also, unlike the singing ability evaluation means in the conventional karaoke apparatus, it has a simple structure and can be realized at a low price, and since the scoring standard is not strict, it is suitable as a toy for infants.

In the first and second embodiments described above, when the scoring switch SW2 is pressed, the musical sound as the evaluation result and the display on the display 12 are simultaneously displayed. May be configured to perform only one of them.

Further, the musical tone as the evaluation result is output based on the musical tone data (fanfare data) stored in the ROM 13 in advance, but the musical tone waveform data stored in the waveform memory 20 is evaluated. It is also possible to change the pitch according to the result and read the read speed to notify the evaluation result.

It is also possible to read musical tone waveform data having different timbres according to the evaluation result to change the timbre and notify the evaluation result.

Further, although the display 12 is composed of 7-segment LEDs and is designed to directly display the scoring value by a numerical value, a digital level meter is used as the display 12 to inform the evaluation result by the level. It may be configured as follows.

Further, it goes without saying that various modifications can be made without departing from the spirit of the present invention.

[0119]

As described above in detail, according to the present invention, the singing ability is evaluated by having a karaoke function capable of singing a musical piece on an accompaniment sound and a singing ability evaluation function thereof. It is possible to provide an automatic performance device with a singing ability evaluation function that is suitable for intellectual education of infants.

[Brief description of drawings]

FIG. 1 is a first automatic performance device with a singing ability evaluation function according to the present invention.
It is a block diagram which shows the whole structure of the Example of this.

FIG. 2 is a flow chart for explaining the operation of the first exemplary embodiment of the present invention.

FIG. 3 is a flowchart for explaining the operation of the first exemplary embodiment of the present invention.

FIG. 4 is a second automatic performance device with a singing ability evaluation function of the present invention.
It is a block diagram which shows the whole structure of the Example of this.

FIG. 5 is a flow chart for explaining the operation of the second exemplary embodiment of the present invention.

FIG. 6 is a flowchart for explaining the operation of the second exemplary embodiment of the present invention.

[Explanation of symbols]

11 Operation panel 12 Display (informing means) 13 ROM 14 CPU 15 Read control unit 16 Input determination control section (first, second and third counting means) 17 Comparative scoring section (calculation means) 18 Evaluation result control unit (informing means) 19 Musical tone generation circuit (informing means) 23 Timer (Signal generation means) 24 storage unit (first, second, and third counting means) 25 microphones (conversion means) 26 Input determination section (second counting means)

Claims (3)

[Claims] 1. An automatic performance device for generating a musical tone based on pre-stored musical tone data to perform an automatic performance, a conversion means for inputting a voice and converting it into a singing signal, and a predetermined period while the musical tone is generated. Signal generating means for generating a trigger signal at intervals, first counting means for counting the number of times the signal generating means generates the trigger signal, and the converting means when the signal generating means generates the trigger signal Second counting means for counting the presence / absence of a singing signal converted by: and an evaluation result calculated according to the ratio of the number counted by the second counting means to the number counted by the first counting means. An automatic performance device with a singing ability evaluation function, comprising: 2. The calculating means calculates in advance a ratio of songs to the entire song as an evaluation reference value, and the evaluation reference value and the number counted by the first counting means The automatic performance device with a singing ability evaluation function according to claim 1, wherein the evaluation result is calculated in accordance with the degree of proximity to the ratio value of the numbers counted by the second counting means. 3. An automatic performance device for automatically playing a musical tone based on pre-stored musical tone data including at least model singing data, and converting means for inputting voice and converting to a singing signal. A signal generating means for generating a trigger signal at a predetermined interval while the trigger signal is generated, and a third means for counting the presence or absence of a singing signal based on the model singing data when the trigger signal is generated by the signal generating means.
Counting means, second counting means for counting the presence or absence of a singing signal converted by the converting means when the trigger signal is generated by the signal generating means, and the number counted by the third counting means. And a notifying means for notifying the evaluation result calculated by the calculating means, the calculating means calculating the evaluation result according to the degree of proximity of the number counted by the second counting means. An automatic performance device with a singing ability evaluation function.