JPH0352080B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention is used with an audio signal recording and reproducing device such as a ``karaoke device'' to convert an audio signal sung by a user into a reproduced audio signal from a reference magnetic tape or the like. The present invention relates to a scoring device that automatically scores a user's singing ability by comparing it with the user's singing ability.

Configuration of conventional examples and their problems As a field of audio equipment, music signals played by instruments such as musical instruments recorded on recording media such as magnetic tape are reproduced and expanded, and when a user sings along with this, the above-mentioned music is reproduced. There is what is commonly called a ``karaoke device,'' which mixes with the signal and amplifies the sound, and is widely used for home and business use.

By singing using the above-mentioned "karaoke device," the user can gain joy and satisfaction, but in recent years, the number of people who want to improve their singing ability has increased, and the number of people who want to improve their singing ability has increased. Some people receive guidance from a singing teacher, but this is not possible for everyone, and one way to study singing on your own is to use an audio multiplexing method such as magnetic tape called ``audio multiplex tape.'' recording media are rapidly becoming popular. For example, in the case of a magnetic tape, this audio multiplexing type recording medium is a first track 101 on a magnetic tape 1, as shown in FIG.
A vocal signal from a singer or the like is sent to the second track 1.
02, musical signals played by musical instruments, etc. are recorded. When using this magnetic tape, an audio multiplexing type ``karaoke apparatus'' having the configuration shown in FIG.
01 and an amplifier 202, and a second tape reproducing means 3 consisting of a magnetic head 301 and an amplifier 302,
These two outputs are mixed and power amplified by a mixing amplifier 5 together with the output of a microphone input means consisting of a microphone 401 and an amplifier 402, and outputted from a speaker 6 as an acoustic signal.

It is said that you can improve your singing ability by listening to vocal signals recorded on a recording medium using the above device and practicing singing along with the vocal signals yourself, but no matter how much you practice, However, the drawback is that users themselves cannot tell how close their own singing style is to the modeled vocal signal, in other words, how much their singing ability has improved. Also, even if the user sings in the wrong way, the user may not be aware of it, and when practicing individually, there will naturally be a limit, and the user will lose interest and lose the desire to practice. It had the disadvantage that it was often

Purpose of the invention The present invention solves the above-mentioned conventional problems.
The vocal signal recorded on an audio multiplex recording medium etc. is compared with the user's singing voice signal, and the degree of matching is calculated and displayed as a score, which serves as an objective evaluation method for the user's singing ability. ,
In particular, it is an object of the present invention to provide a scoring machine that more accurately calculates the degree of matching as a score by not affecting the score even if the user makes noise during an interlude in a song.

Structure of the Invention The scoring device of the present invention includes a first scale change detection means for detecting a change in the pitch of a scale of a first audio signal to be input, and a change in pitch of a scale of a second audio signal to be input. a second scale change detection means for detecting a change in pitch of the first sound signal;
a second counting storage means for counting and storing the number of changes in pitch of the musical scale of the second audio signal; and a first pause detection means for detecting a no-signal portion of the first audio signal. , a second pause detection means for detecting a no-signal portion of the second audio signal, a third counting storage means for counting and storing the number of times a pause is detected by the second pause detection means, and a second pause detection means for counting and storing the number of times a pause is detected by the second pause detection means. When the detection means detects that the pause of the second audio signal is released, the pause detects whether or not the pause of the first audio signal is also canceled almost at the same time by looking at the output information of the first pause detection means. simultaneous release detection means;
a fourth count storage means for counting and storing the number of times the pause simultaneous release detection means detected that the pause release of the second audio signal was substantially simultaneous with the pause cancellation of the second audio signal; and the first count recording means. The information stored in the second count storage means is compared with the information stored in the second count storage means, and the information stored in the third count storage means is compared with the information stored in the fourth count storage means. The first audio signal becomes the second audio signal according to the ratio of
Since the score is calculated based on the degree to which the vocal signal matches the vocal signal of the recording medium, the user can recognize the level of his/her own singing ability compared to the vocal signal of the recording medium, and can also When the vocal signal is paused, such as during an interlude, even if the user makes noise, it does not affect the score, allowing for more accurate scoring.

DESCRIPTION OF THE EMBODIMENT FIG. 3 is a block diagram showing an embodiment of the present invention. 4 is a microphone input means for converting the user's singing voice into an electrical signal and amplifying it; 401 is a microphone; and 402 is an amplifier. 2 is a first magnetic tape reproducing means for reproducing a polar signal recorded on an audio multiplexing type recording medium; 201 is a magnetic head; and 202 is an amplifier. Reference numeral 7 denotes a first waveform converting means, which converts the voice sung by the user into a pulse signal. Reference numeral 8 denotes a second waveform converting means, which converts the vocal signal of the recording medium into a pulse signal. Reference numeral 9 denotes a first scale change detection means, which detects changes in the scale of the voice sung by the user. Reference numeral 10 denotes a second scale change detection means, which detects a change in the scale of the vocal signal. Reference numeral 11 denotes a first counting storage means, which counts and stores the number of changes in pitch of the scale of the voice sung by the user only when there is a vocal signal. Reference numeral 12 denotes a second counting storage means, which counts and stores the number of changes in pitch of the scale of the vocal signal.

Reference numeral 13 denotes a first pause detection means, which detects pauses caused by breaths or the like in the user's singing voice. Reference numeral 14 denotes a second pause detection means, which detects a pause due to a pause or the like in the vocal signal on the magnetic tape. Reference numeral 41 denotes a third counting storage means, which counts and stores the number of pauses in the vocal signal on the magnetic tape based on the output of the second pause detection means. Reference numeral 15 denotes a pause simultaneous release detection means, which detects when the pause in the vocal signal is canceled, that is, when the vocal signal changes from a no-signal state to a signal-present state, the audio signal sung by the user is also released from the pause at approximately the same time. This is to detect whether or not. Reference numeral 16 denotes a fourth counting storage means for counting and storing the number of times that the pause simultaneous release is detected by the pause simultaneous release detection means.

17 is a score measuring means that compares and calculates the number of changes in pitch of the pitch of the voice sung by the user and the number of pitch changes of the pitch of the vocal signal, and further calculates the number of detected pauses in the vocal signal and the number of pitch changes in the pitch of the vocal signal. A score is calculated based on the ratio of the number of times the user sings an audio signal and the number of times the pause release is detected almost at the same time as the pause release, and the degree to which the user's singing audio signal matches the magnetic tape vocal signal is calculated. .

FIG. 4 is a block diagram showing the specific configuration of this embodiment, which includes detecting scale changes in the voice sung by the user and storing counts in the change circuit, detecting scale changes in the vocal signal and storing counts in the change count, and detecting scale changes in the vocal signal and storing counts in the change circuit. Pause detection and counting memory of the detection circuit, detection of pauses in the user's singing signal, detection of canceling the pause in the user's singing signal almost simultaneously with the release of the pause in the vocal signal, counting and storing the number of detections, and calculation of scores. This is realized by the microcomputer 18.

FIG. 5 shows an actual circuit example of the first waveform converting means 7. Normally, the same circuit is often used for the first waveform converting means 7 and the second waveform converting means. The circuit of the first waveform converting means 7 will be representatively explained with reference to the operational diagram of FIG. 6.

701 is an input terminal, 702, 704, 705,
708, 710, 711 are resistors, 703, 70
6 and 709 are capacitors, 707 is an operational amplifier (hereinafter abbreviated as OP amplifier), 712 is a transistor, and 713 is an output terminal.

OP amplifier 707 and resistors 702, 704, 7
05 and capacitors 703 and 706 constitute a low-pass active filter, which removes high-frequency components of the audio electrical signal as shown in Figure 6a input to the input terminal 701, and at the same time outputs the OP amplifier. Necessary signal amplification is performed by the amplifying action of 707, and furthermore, a time constant circuit composed of resistor 708 and capacitor 709 supplementally removes high-frequency components that are not sufficiently removed by the active filter. In this way, the audio electrical signal shown in FIG.
12, the pulse waveform is converted into a pulse waveform as shown in FIG. 6c. In this way, the first waveform converting means 7 converts the user's singing voice signal, which is the output of the microphone input means 4, into a pulse waveform, and the second waveform converting means 8 similarly converts the voice signal sung by the user into a pulse waveform. The vocal signal that is the output of is also converted into a pulse waveform.

The operation of this embodiment will be explained below based on the flowchart shown in FIG. 7 showing the main part of the processing operation of the microcomputer.

First, it is assumed that the power of the device is turned on and that the memory elements and the like inside the microcomputer 18 have also been initialized. A vocal signal recorded on a magnetic tape 1, which is an audio multiplexing recording medium, is reproduced by a first magnetic tape reproduction means 2,
It is converted into a pulse signal by the second waveform converting means 8 and inputted to the microcomputer 18.
26, it is first determined whether or not the vocal signal is in a resting state by looking at the pulse signal obtained from the vocal signal.

If the vocal signal is in a pause state, proceed to step 27 and determine whether the vocal signal has started to pause, that is, there was a vocal signal until just before, and now there is no signal for the first time, and if the vocal signal has started to pause. In step 28, _N3 , which indicates the number of pauses in the vocal signal, is incremented by one. That is, steps 26 and 27 realize the function of the second pause detection means 14, and step 28 realizes the function of the third count storage means 41.

Conversely, if it is determined in step 26 that the vocal signal is not in a rest state, the vocal signal is released from the rest state in step 29, that is, the vocal signal was in a no-signal state until just before, and is now in a signal state for the first time. Determine whether or not you have become used to it.

Step 30 if the vocal signal is unpaused
Therefore, the process proceeds to step 31 only when the user's singing voice signal input from the microphone is released from the pause almost at the same time. step
In step 31, N ₄ , which indicates the number of times the pause in the voice signal sung by the user is released almost simultaneously with the release of the pause in the vocal signal, is increased by 1. That is, step 30 realizes the function of the first pause detection means 13, steps 26, 29, and 30 realize the function of the pause simultaneous release detection means 15, and step 31 realizes the function of the fourth count storage means 16.

Next, in step 32, the time width of the input pulse is converted into a digital quantity. That is, by counting the "H" period of the pulse signal shown in FIG. 6c using the microcomputer's own clock signal, the time width of the input pulse can be converted into a digital quantity. In this way, the time width from t ₁ to t ₂ and the time width from t ₃ to t ₄ in FIG. 6c,
Conversion is performed in the order of time width from t ₅ to t ₆ ... Note that when this time width increases, it indicates that the scale has become lower, and when it decreases, it indicates that the scale has become higher.

In step 33, it is determined whether the time width has increased compared to the previous time width, and if the time width has increased, in step 35, _N21 , which indicates the number of times the scale of the vocal signal has become lower, is increased by 1. If the time width is not increased, proceed to step 34. In step 34, it is determined whether the time width of the pulse signal has decreased compared to the previous time width. If the time width has decreased, step 37 determines _N23 , which indicates the number of times the scale of the vocal signal has increased. is increased by 1, and if the time width has not decreased, proceed to step 36, indicating the number of times the scale of the vocal signal does not change.
Increase N ₂₂ by 1.

As mentioned above, steps 32, 33, and 34 realize the function of the second scale change detection means 10, and steps 35,
36 and 37 realize the function of the second count storage means 12.

Next, the process advances to step 42, and by checking the pulse signal obtained from the vocal signal again, it is determined whether or not the vocal signal is in a resting state. If the bowal signal is in a paused state, the process advances to step 38. If it is determined that the vocal signal is not in a resting state, the process proceeds to step 20. In step 20, the audio signal sung by the user is turned into an electrical audio signal by the microphone input means 4, amplified, converted into a pulse signal by the first waveform conversion means 7, and inputted to the microcomputer 18. In step 20, the input pulse time is Convert width to digital quantity.

Next, in step 21, it is determined whether the time width of the pulse signal has increased compared to the previous time width. In other words, in the pulse signal waveform of Fig. 6c, if the time width from t ₃ to t ₄ is currently detected, then the time width from t ₁ to t ₂ , which is the data of the previous time width, is In comparison, it is determined whether the time width from t ₃ to t ₄ has increased, and if the time width has increased, it indicates the number of times the scale of the user's audio signal has become lower in step 23.
Increase _N11 by 1, and if the time width has not increased, proceed to step 22. In step 22, it is determined whether the time width of the pulse signal has decreased compared to the previous time width, and if the time width has decreased, step 25 indicates the number of times the scale of the user's audio signal has increased. Increase _N13 by 1, and if the time width has not decreased, proceed to step 24, and increase _N12 , which indicates the number of times the scale of the user's audio signal does not change, by 1.
increase only.

As mentioned above, steps 20, 21, and 22 realize the function of the first scale change detection means 9, and steps 23,
24 and 25 realize the function of the first count storage means 11.

Next, in step 38, it is determined whether it is time to start scoring. The decision to start scoring may be based on push button switch information that designates the start of scoring, or by detecting the presence or absence of performance music signals recorded on the magnetic tape 1. Scoring may start when the music signal disappears. It is also possible to record an end signal indicating the end of the song in advance, and use the point in time when the end signal is detected or the point in time when the end of the magnetic tape is detected.

If it is not yet time to start grading, proceed to step 38.
Then proceed to step 20 or step 26,
N ₁₁ which is the change data of the time width of the pulse signal,
Data collection of N ₁₂ , N ₁₃ , N ₂₁ , N ₂₂ , N ₂₃ , the number of pauses in the vocal signal N ₃ , and the number of times N ₄ the voice signal sung by the user also came out of the pause at almost the same time as the pause in the vocal signal was released. will be carried out.

Then, when it comes time to start scoring, the process proceeds from step 38 to step 39, where the score is calculated. Step 39 has the function of score calculation means 17,
The score is calculated based on time width change data N ₁₁ , N ₁₂ , N ₁₃ , N ₂₁ ,
N ₂₂ , N ₂₃ and the number of pauses in the vocal signal
N ₃ , the number of times that the user's singing voice signal also came out of pause at almost the same time as the pause in the vocal signal
It is based on N ₄ and is calculated to give a maximum of 100 points. First, a basic formula will be explained as an example of a formula for calculating the score. With α, β, and γ as constants, the score P is P=100×{(N ₂₁ +N ₂₂ +N ₂₃ )−(α|N _1
1 −N ₂₁ |+ β|N ₁₂ −N ₂₂ |+γ|N ₁₃ −N ₂₃ |)}/(N ₂₁ +N ₂₂
+N ₂₃ )...Define it as an expression.

The score according to the above formula is N ₁₁ = N ₂₁ ,
When N ₁₂ = N ₁₃ = N ₂₃ , the perfect score is 100 points. Change, change towards the lower;
A full score will be given if all three unchanging items are performed the same number of times, that is, if the change in the scale of the audio signal sung by the user is the same as the change in the scale of the vocal signal on the magnetic tape 1. be.

On the other hand, in the above formula, N ₁₁ = 0, N ₁₂ =
The constants α, β, and γ are determined so that the score is 0 when N ₁₃ =0. This is to ensure that the score becomes 0 when the user does not sing at all.

Next, an example of the score calculation formula in this embodiment will be explained. As in the calculation formula above, α, β, and γ are constants, and K ₁ and K ₂ are also constants,
The score P is P=K ₁ × {(N ₂₁ +N ₂₂ +N ₂₃ )−(α|N ₁₁
−N ₂₁ |+β|N ₁₂ −N ₂₂ | +γ|N ₁₃ −N ₂₃ |)}/(N ₂₁ +N ₂₂ +N ₂₃ )+K ₂ ×N
₄ /N ₃ ...Define it as an expression.

The first term in the above equation is the number 100 in the above equation replaced with the constant K ₁ , so
Explanation will be omitted. The second term of the equation, K ₂ ×N ₄ /
To explain the meaning of N ₃ , N ₃ is the number of times the vocal signal pauses, and N ₄ is the number of times the vocal signal pauses and the voice signal sung by the user stops at approximately the same point. Shows the number of times it has worn out.

To be more specific, _N3 is the number of times the singer in the vocal signal, which is used as a model for scoring, takes a breather or does not sing, and _N4 is the number of times the singer in the vocal signal takes a breather or does not sing. It shows the number of times the user started singing from a state of not singing at almost the same time when the user started singing from a state of not singing, and N ₄ ≦
Since there is a relationship of N ₃ , N ₄ /N ₃ is a positive number less than 1, and N ₄ /N ₃ is the rate at which the vocal signal and the user's sung audio signal start singing at almost the same time. It can be thought of as an element that indicates the sense of rhythm and tempo matching of singing ability. this
The _constants α _{, β} ,
By setting γ, K ₁ , and K ₂ , it is possible to calculate a score more accurately than the calculation formula described above, since it takes into account the sense of rhythm and how the tempo matches.

In this way, in step 39, the information on the change in the scale of the user's audio signal, the information on the change in the scale of the vocal signal on the magnetic tape 1, and the information indicating the sense of rhythm and tempo matching of the user's audio signal are used.
It can be seen that the score is calculated based on the extent to which the user's voice signal and the vocal signal on the magnetic tape 1 match. After calculating the score, the score is displayed on the score display means 19 in step 40.

Since the user's audio signal is taken into the first counting and recording means only when the vocal signal is not in a resting state, the following equation holds true.

N ₂₁ +N ₂₂ +N ₂₃ ≧N ₁₁ +N ₁₂ +N ₁₃ ...In other words, if the vocal signal is paused and there is only performance, for example, even if the user does something during the interlude of the song, it will be the first The counting recording means of
It has the advantage that it does not affect scores because it is not captured as data. Also, if the vocal signal is not paused and the user does not sing,
N ₂₁ +N ₂₂ +N ₂₃ and N ₁₁ +N ₁₂ as shown in the formula
This also has the effect of increasing the difference in +N ₁₃ and lowering the score shown in the formula.

As described above, according to this embodiment, changes in the scale of an audio signal sung by a user are compared with changes in the scale of a vocal signal such as a magnetic tape, and the sense of rhythm and tempo are determined based on the vocal signal. Since the degree of matching can be calculated and displayed as a score, it is possible to provide an objective evaluation means for the user's singing ability.

In this example, the user's singing voice signal was used as the scoring target, and the vocal signal recorded on magnetic tape, which is an audio multiplexing recording medium, was used as the scoring standard. Any audio signal such as a wave signal or a person's voice may be used.

Furthermore, in this embodiment, a waveform conversion means using a low-pass active filter and a transistor was used to convert an audio signal into a pulse signal.
This may be accomplished by using a circuit that directly converts the audio signal waveform into a digital pulse signal using an analog-to-digital converter.

Further, in this embodiment, the scale change detecting means, the counting recording means, etc. are realized by a microcomputer, but it goes without saying that these may be realized and used by conventional general-purpose logic circuits.

In addition, in this embodiment, a waveform conversion means and a scale change detection means are provided separately for processing the user's audio signal and vocal signal processing, but these are only one system, and the user's audio signal is processed in a time-sharing manner. , and vocal signal processing may be performed.

In addition, in this embodiment, the time width in the case of "H" of the pulse signal which is the output of the _waveform converting means _is shown in _{FIG .} Three types of changes in the musical scale of the audio signal, such as a change in the high direction, a change in the low direction, and a constant change, are detected by detecting the width.For example, in Fig. 6c, from t ₁ to t After the time width ₂ , changes in the time width may be detected one by one, such as from t ₅ to t _6. Alternatively, changes in the time width may be detected one by one, such as from t 5 to t 6. The time width of the pulse signal that is the output of the waveform converting means during a certain period that is sufficiently long compared to the one time width that is "H" is checked for all pulses or for a part of the pulses,
The average time width, maximum time width, etc. per one pulse may be determined, and changes in the scale of the audio signal may be detected based on changes in the average time width, etc.
Alternatively, only one or two of the three types of changes, ie, a change in the higher direction, a change in the lower direction, and no change, may be detected.

For example, when there are two types of changes in musical scales, one is a change to a lower level and the other is a change that remains unchanged, the scoring formula becomes P=100×{(N ₂₁ +N ₂₂ +N ₂₃ )−(α|N ₁₁ −N ₂₁ |
+β|N ₁₂ −N ₂₂ |)}/(N ₂₁ +N ₂₂ +N ₂₃ )...If the formula α=β=1, when the user does not sing, that is, when N ₁₁ +N ₁₂ = 0, P=100. ×N ₂₃ /N ₂₁ +N ₂₂ +N ₂₃ remains and does not become a zero point. Therefore, when N ₁₁ +N ₁₂ = 0, P =
Make it so that it becomes 0.

Comparing the formula and formula, it is clear that the formula gives a higher score. In this way, the same set can have two levels of difficulty: beginner and advanced.

Furthermore, in this embodiment, the second audio signal independently counts the number of changes in the scale, and the first audio signal counts the number of changes in the scale only when the second audio signal is present. The number of changes in the scale may also be counted only when the first audio signal is present.

Effects of the Invention As described above, the present invention includes two waveform conversion means for converting two audio signals into pulse signals, and detects how the scales of the two audio signals change based on the outputs thereof. two scale change detection means,
two counting storage means for counting and storing the output;
A comparison operation is made between three types of information stored in two counting storage means: the number of times a shift to a higher scale was detected, the number of times a shift to a lower scale was detected, the number of times, and the number of times a change was detected. Furthermore, by examining the sense of rhythm and how the tempo matches, it is possible to more accurately obtain a score based on the degree of matching between the two audio signals. Another feature is that when the vocal signal is paused, such as during an interlude in a song, the score will not be affected even if the user makes noise. This means that people who practice singing using audio multiplexed recording media can use the vocal signals recorded on the audio multiplexed recording media as a singing teacher to evaluate the singing ability of the singing teacher. This means that it is possible to provide an objective means of determining how many points a person has in terms of singing ability. In other words, for people who practice singing, the goal of practicing becomes clear, and for example, ``I want to sing this song.''
I will practice until I get a score of 80 or higher.'' This will improve my desire to practice, and if I try to sing and don't get good scores, I will think about why I don't get good scores and look for the weaknesses in my singing style. , you can further develop your skills, and the effects are great.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram of an audio multiplex track on a magnetic tape, which is one type of audio multiplex recording medium, and Figure 2 is an illustration of a so-called audio multiplex track using magnetic tape, which is one type of audio multiplex recording medium. 3 is a block diagram of a main part of an embodiment of the present invention, FIG. 4 is a block diagram showing a specific configuration of this embodiment, and FIG. 5 is a block diagram of a karaoke device of this embodiment. FIG. 6 is an operation explanatory diagram for explaining the operation of the first waveform conversion means;
FIG. 7 is a flowchart showing the main part of the processing operation of the microcomputer of this embodiment. 7...First waveform conversion means, 8...Second waveform conversion means, 9...First scale change detection means, 10
...Second scale change detection means, 11...First count recording means, 12...Second count recording means, 13
...first pause detection means, 14...second pause detection means, 15...pause simultaneous release detection means, 41...
...Third count recording means, 16...Fourth count recording means, 17...Score calculation means.

Claims (1)

[Claims] 1. A first waveform converting means that converts an input first audio signal into a pulse signal, and based on the output pulse signal of the first waveform converting means, the scale of the first audio signal is high. a first scale change detection means that detects whether the scale has shifted to a lower scale, or whether there is no change; and a second waveform conversion means that converts an inputted second audio signal into a pulse signal. , a second device for detecting whether the scale of the second audio signal has shifted to a higher scale, a lower scale, or remains unchanged based on the output pulse signal of the second waveform converting means; The number of times a transition to a higher scale is detected based on the outputs of the scale change detection means and the first scale change detection means, and only when there is an output pulse signal from the second waveform conversion means; A first counting storage means for counting and storing the number of times a transition to a lower scale is detected and the number of times a change is detected, respectively, and a shift to a higher scale based on the outputs of the second scale change detection means. a second counting storage means for counting and storing the number of times a shift is detected, the number of times a shift to a lower scale is detected, and the number of times a change is detected; and a non-signal portion of the first audio signal. a first pause detection means for detecting a no-signal portion of the second audio signal; a second pause detection means for detecting a no-signal portion of the second audio signal;
a third counting storage means for counting and storing the number of times a pause has been detected by the pause detection means; and detecting that the pause of the second audio signal has been canceled based on the output of the second pause detection means; pause simultaneous release detection means for detecting whether or not the pause of the first audio signal has also been canceled at substantially the same time by checking the output information of the first pause detection means at the time when the pause detection means has been released;
The output of the pause/simultaneous release detection means
a fourth counting storage means for counting and storing the number of times that a break in the audio signal was almost simultaneous with a cancellation of the pause in the second audio signal; and a high scale stored in the first counting storage means. The number of times the transition to a lower scale was detected, the number of times the transition to a lower scale was detected, and the number of times it was detected that there was no change, and the number of times the transition to a higher scale was detected, which is stored in the second count storage means. Compare and calculate the number of times the scale has been detected, the number of times it has been detected that there has been a shift to a lower scale, and the number of times that it has been detected that there has been no change.
The number of times a pause has been detected by the second pause detecting means stored by the counting storage means and the cancellation of the pause of the first audio signal stored by the fourth counting storage means are determined by the second count storage means. and score calculation means for calculating the degree to which the first audio signal matches the second audio signal as a score according to the ratio of the number of times the audio signal is released from a pause and the number of times the audio signal is released almost simultaneously. A scoring device characterized by: