JP2004102148A - Karaoke scoring device having rhythmic sense grading function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a karaoke scoring device having a rhythmic sense grading function when a singer sings a song at correct rhythm in addition to evaluation in how faithful it is to a melody which is a grading reference. <P>SOLUTION: The karaoke scoring device compares interval components extracted from audio information input from a microphone with interval components of performance data from a storage device with a comparison part 10b, transmits an evaluation result by an evaluation part 10c to an addition part 12, detects generation timing from a sound volume signal extracted from the audio information with a generation timing detection part 11a, evaluates whether it is performed at correct rhythm with an evaluation part 11c by judging whether it coincides with a pattern of timing information of a rhythm included in the performance data, transmits the evaluation result to the addition part 12, and displays a scored result on a display unit. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a karaoke scoring apparatus in which a rhythm feeling scoring function is added to a normal song scoring function.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a communication karaoke apparatus has a function of performing accompaniment of a requested music, vocalizing the voice of a singer, evaluating a singer's singing ability with the accompaniment, and scoring the singer.
The scoring function added to this communication karaoke detects how accurately the pitch of the guide melody included in the music data and the pitch sung by the detected singer match for a long time, and scores based on a predetermined standard. Was evaluated. The evaluation result was displayed on a display such as a CRT.
[0003]
[Problems to be solved by the invention]
However, in the above scoring function, the score may be lower than that of a person who is not good at singing even though he is good at singing. One reason for this is that good singers change the rhythm and sing.
This is because, if the rhythm is changed with respect to the guide melody that is used as a reference for scoring, the melody will be different from the guide melody and will be subject to deduction.
[0004]
When a good person sings with different rhythms, the point of evaluation is whether the rhythm is incorporated at the right time.
An object of the present invention is to provide a karaoke scoring device having a rhythmic feeling scoring function for scoring a singer with a correct rhythm, in addition to the evaluation of how faithful to the melody which is the conventional scoring criterion, to increase the evaluation. To provide.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, a karaoke scoring device having a rhythmic feeling scoring function according to the present invention is provided with a microphone for inputting a singer's song, and a pitch for extracting a pitch component and a volume component from voice information input to the microphone. Volume detection means, storage means for storing performance data of one or more songs, music generation means for outputting music from a speaker based on the performance data of the storage means, and karaoke information such as karaoke lyrics telops and scoring results. According to the display means to be displayed and the karaoke start instruction, the performance data of the selected song is read from the storage device, and the voice generating means is controlled to play an accompaniment, and the melody interval and the singer of the performance data sang. Performs evaluation by comparing pitches, detects the timing of rhythm occurrence from the singer's volume component, and calculates the rhythm included in the performance data. It is configured to evaluate whether or not it is sung with the correct rhythm by judging whether or not it matches the pattern of the timing information of the above, and the evaluation result is also composed of a calculation means for displaying a visual or audible display in addition to the pitch evaluation. ing.
Further, the arithmetic means in the present invention has a performance data rhythm creating means for dividing the performance data by a unit time, summing up the occurrence timing of each musical instrument used in the unit time, and creating a timing pattern.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a circuit block diagram showing an embodiment of a karaoke scoring apparatus having a rhythm feeling scoring function according to the present invention.
In this embodiment, a scoring function is provided in a communication karaoke apparatus, and only components directly related to the present invention are described.
The karaoke scoring device according to the present invention includes a microphone 2, a storage device 3, a pitch / volume detector 4, an arithmetic device 5, a music generator 6, a display device 7, and a speaker 8.
The pitch / volume detector 4 is composed of a circuit for detecting a pitch component by performing a fast Fourier transform on the voice of the singer 1 input from the microphone 2 and a circuit for extracting the volume.
The storage device 3 stores a large number of karaoke songs (performance data), background images corresponding to the songs, lyrics telops, and other information.
[0007]
The music generation device 6 generates music according to the selected melody from the storage device 3 and outputs the music from the speaker 8. The display device 7 is a CRT device or the like, and displays a karaoke song selection screen, a screen from the start to the end of the performance, and the like. At the time of the performance, a background image corresponding to the selected karaoke song is displayed, and a lyrics telop flows along with the accompaniment.
When the singer selects a specific song from a number of karaoke songs displayed on the display device 7 or the display unit (not shown) by the singer using input means (including a remote controller) (not shown), the singer receives the signal and sends the signal from the storage device 3. The performance data of the corresponding karaoke song is read, music is generated by the music generator 6 and output from the speaker 8. At the same time, the background image and the lyrics telop are displayed on the display device 7. The lyrics telop flows on the screen according to the performance, the color of the character of the part being played changes, and the singer sings according to the accompaniment. The arithmetic unit 5 evaluates the pitch with respect to the pitch component extracted by the voice detection unit 4, detects the occurrence timing from the volume, determines whether or not the timing of this rhythm is correct, and sings in the correct rhythm. Is controlled to add the evaluation points.
[0008]
FIG. 2 is a circuit block diagram showing details of the arithmetic unit.
The arithmetic unit 5 has a pitch evaluation unit 10 and a rhythm feeling evaluation unit 11. The pitch evaluation unit 10 inputs the pitch component of the voice information sung by the singer from the pitch / volume detection unit 4 to one terminal of the comparison unit 10b, and compares the pitch component 10a of the performance data read from the storage device 3 with the comparison unit. Input to the other terminal of 10b. The comparison unit 10b detects a difference between the two input signals and sends the difference to the evaluation unit 10c. The evaluation unit 10c has, for example, an evaluation table, evaluates the value of the difference inputted with reference to the evaluation table, and gives a score. This is performed, for example, for each bar. The evaluation for one song is performed by calculating the average score of all the bars, and the evaluation points are sent to the adding unit 12.
[0009]
FIG. 3 shows an example of waveforms of the pitch of the guide melody and the singer.
If the singer sings well, for example, the difference between the pitch of the performance data of (a) and the pitch of the singer of (b) at t becomes small. If it is not good, the difference will be large because the pitch is greatly off. The evaluation unit 10c integrates the difference signal for one bar, compares the value with the evaluation table, and determines which evaluation point of the evaluation table is the integrated value.
[0010]
FIG. 2 is further described.
The volume component from the pitch / volume detector 4 is sent to the generation timing detector 11a. The occurrence timing detection section 11a detects an occurrence timing signal from a change in volume and sends it to the rhythm determination section 11b.
On the other hand, the performance data rhythm creating section 11d divides the performance data read out from the storage device 3 into unit times, and creates a rhythm pattern in which the sounding timings of all the musical instruments used at that time are added.
FIG. 4A shows an example of the rhythm used per unit time of the selected performance data, and FIG. 4B shows musical notes which can be extracted and used as a rhythm without any problem. is there.
The rhythm of the song can be freely uttered in a ring-like sensation in one beat, but the rhythm that can be used without any problem in the music greatly depends on the rhythm pattern of the background. Therefore, the rhythm pattern is important for determining the tune, and the utterance timing that can be used is limited to some extent.
[0011]
FIG. 5 is a waveform diagram for explaining a more specific example of extracting the rhythm of a musical piece. 5 (a) is a waveform example of Dawn, Dawn... Of Tyco 1, FIG. 5 (B) is a waveform example of Dawn, Dawn having a sound higher than that of Tyco 1 of Tyco 2, and FIG. This is a waveform example of ja-n-n.
When these waveforms are superimposed, the waveform is as shown in FIG. 5D, and the envelope which is the envelope of this waveform is as shown in FIG. 5E. As is apparent from this envelope, the timings included in the performance data are t ₁ to t ₉ . Accordingly rhythm pattern created by the performance data rhythm creating unit 11d waveform rhythm position t ₁ ~t ₉ as described above is made.
[0012]
In FIG. 2, the rhythm determination unit 11b refers to the rhythm pattern created by the performance data rhythm creation unit 11d, and makes a determination by comparing the occurrence timing signal from the occurrence timing detection unit 11a. That is, it is determined whether or not the occurrence timing signal matches the position of the rhythm pattern. If all match, an output is sent to the evaluator 11c indicating that the singer's song timing is all captured in the correct rhythm. The evaluation unit 11c generates an evaluation point according to the output from the rhythm determination unit 11b and sends it to the addition unit 12. The addition unit 12 adds the evaluation score from the voice evaluation unit 5 and the evaluation score from the rhythm sense evaluation unit 11 to indicate whether or not the song sang according to the guide melody, and displays the result on the display device 7.
[0013]
FIG. 6 is a diagram illustrating an example of a rhythm in which a singer sings about a certain music.
In FIG. 6A, the horizontal axis indicates the length (t) of the musical note of the music piece. Assuming that "do" and "le" are quarter notes, "mi" is the length of a half note. These performances are repeated twice.
The singer sings to such a performance tune while changing the rhythm as shown in FIG. The timing of generating the sound corresponding to "do" and "re" is the same, but the generation timing of the sound corresponding to "mi" is delayed by 1/4 beat.
If the lyrics of this music piece are "blossomed, bloomed", it means that the rhythm is being taken at the timing of "blooming ... ta" and "blooming ... ta". Since this rhythm uses the timing included in the original performance data, the song is sung with the correct rhythm.
[0014]
FIG. 7 is a flowchart for explaining the operation of the karaoke scoring device having a rhythm scoring function according to the present invention.
When the singer requests a specific song from a large number of karaoke songs by the input means, the performance starts (steps (hereinafter referred to as "S") 701, S702). When the singer starts singing (S703), the arithmetic unit 5 detects the pitch and volume of the singer's song input from the microphone by the pitch / volume detector 4 (S704).
The pitch component of the singer's song and the pitch component of the performance data read from the storage device 3 are input to the comparison unit 10b, and the evaluation unit 10c performs pitch evaluation on the guide melody. At the same time, the generation timing of the singer's volume signal is extracted by the generation timing detection section 11a, and the rhythm pattern from the performance data rhythm creation section 11d is compared to determine whether or not the singer is singing in the correct rhythm. The feeling is evaluated (S705).
[0015]
The evaluation points of the evaluation units 10c and 11c are sent to the addition unit 12, and the total evaluation result is displayed on the display device 7 (S706).
The arithmetic unit 5 determines whether or not the music has been completed (S707). If the music has not been completed, the process returns to S704, and the same operation is repeated. When the song ends, the grading ends (S708).
[0016]
In the above embodiment, singing is performed by changing the rhythm of a song that matches the performance tune, but it is possible to evaluate only the rhythm irrespective of the pitch evaluation unit. In such a case, only the rhythm evaluation section 11 of the arithmetic device may be operated and displayed. In addition, the evaluation method in the pitch evaluation unit may be configured such that the evaluation unit displays characters such as “good”, “normal”, and “please try a little more” instead of displaying scores. The display of the evaluation by the rhythmic feeling evaluation section is similar.
Furthermore, an example has been described in which the evaluated information is immediately displayed on the display device, and the evaluation information of one music piece is displayed when the music piece ends. However, the evaluation information may be displayed when the music piece ends. Further, instead of the score and the character expression, the length of the bar graph may be represented by the increase and decrease of the bar graph in accordance with the evaluation content.
In addition, not only visual display but also audio display may be performed at the same time, or only audio display may be performed.
[0017]
In this embodiment, a method is used in which a rhythm pattern is created from performance data, and it is determined whether any one of the rhythms is used and evaluated. It is also possible to prepare a pattern and use this rhythm pattern.
[0018]
【The invention's effect】
As described above, the present invention evaluates the pitch of a singer for a melody guide, and in addition to this, positively detects a singing method that breaks a rhythm different from the rhythm according to the melody guide, and if the rhythm is correct, Since it is configured to be an object of adding points, it is possible to realize a karaoke scoring apparatus that gives a high score to a person who is good at singing while changing the rhythm. The arithmetic function according to the present invention can also be applied to a practice function of singing while changing the rhythm.
[Brief description of the drawings]
FIG. 1 is a circuit block diagram showing an embodiment of a karaoke scoring device having a rhythmic sense scoring function according to the present invention.
FIG. 2 is a circuit block diagram illustrating details of an arithmetic unit.
FIG. 3 is a diagram showing a waveform example of a guide melody and a pitch of a singer.
FIG. 4 is a diagram showing an example of a rhythm extracted from performance data.
FIG. 5 is a waveform diagram for explaining rhythm timings usable from waveforms generated by three musical instruments.
FIG. 6 is a diagram for explaining an example of a rhythm in which a singer sings about a certain music.
FIG. 7 is a flowchart for explaining the operation of the karaoke scoring apparatus having a rhythmic feeling scoring function according to the present invention.
[Explanation of symbols]
Reference Signs List 1 singer 2 microphone 3 storage device 4 pitch / volume detection unit 5 arithmetic unit 6 music generation device 7 display device 8 speaker 10 pitch evaluation unit 10a performance data pitch component 10b comparison units 10c, 11c evaluation unit 11 rhythm sense evaluation unit 11a generation timing Detector 11b Rhythm determiner 11d Performance data rhythm generator 12 Adder

Claims (2)

A microphone to enter the singer's song,
Pitch / volume detecting means for extracting a pitch component and a volume component from the voice information input to the microphone,
Storage means for storing performance data of one or more songs;
Music generating means for outputting music from a speaker based on the performance data of the storage means,
Display means for displaying karaoke information such as karaoke lyrics telops and scoring results;
In response to a karaoke start instruction, the performance data of the selected song is read from the storage device, and the voice generating means is controlled so as to play an accompaniment, and the melody pitch of the performance data is compared with the pitch sung by the singer. Rhythm is detected from the singer's volume component, and it is evaluated whether the rhythm is sung with the correct rhythm by judging whether the pattern matches the rhythm timing information pattern included in the performance data. Calculating means for displaying the evaluation result in a visible or audible manner in addition to the pitch evaluation,
A karaoke scoring device having a rhythmic feeling scoring function, characterized by comprising: 2. The performance data rhythm creation means, wherein the operation means has a performance data rhythm creation means for dividing the performance data by a unit time, adding together the generation timings of the musical instruments used in the unit time, and creating a timing pattern. Karaoke scoring system with a rhythmic sense scoring function.

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