JP2004102149A - Karaoke scoring device having sobbing grading function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a karaoke scoring device having a sobbing grading function graded so as to increase an evaluation when it is determined that sobbing is detected and is effective 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 of a singer 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, determines a sobbing waveform with a sobbing determination part 11b by differentiating the interval components, transmits a result evaluating sobbing in an evaluation part 11c 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 device that adds a scooping scoring function 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 a good song sings up.
This is because the hiccups are not recorded in the guide melody that is used as a reference for scoring, and if the singer flicks to various places, the singer will be out of the pitch curve of the guide melody, and the points will be deducted.
[0004]
The purpose of the present invention is to evaluate the degree of faithfulness to the melody which is the conventional scoring standard, and to detect a hiccup and judge to raise the evaluation if it is judged that the hiccup is effective. It is to provide a karaoke scoring device having the following.
[0005]
[Means for Solving the Problems]
To achieve the above object, a karaoke scoring device having a scooping scoring function according to the present invention includes a microphone for inputting a singer's song,
Pitch detecting means for performing a fast Fourier transform of voice information input to the microphone to extract a pitch component, storage means for storing performance data of one or more songs, and outputting music from a speaker based on the performance data of the storage means Music generating means, display means for displaying karaoke information such as karaoke lyric telops, scoring results, etc., and in accordance with a karaoke start instruction, performance data of the selected song is read out from the storage device and accompaniment music is given to the voice generating means. , And differentiates the pitch component extracted from the singer's voice information input to the microphone to detect the hiccup component, compares the melody pitch of the performance data with the singer's sung pitch, and performs evaluation. And an arithmetic means for visually or audibly displaying the evaluation result in addition to the evaluation of the hiccup component.
Further, in the present invention, the arithmetic means includes a hiccup evaluating means for estimating an appropriate hiccup when the detected hiccup component has a predetermined ramp waveform.
[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 scooping 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 detecting unit 4, a computing device 5, a music generating device 6, a display device 7, and a speaker 8.
The pitch detecting section 4 is constituted by a circuit which performs a fast Fourier transform on the voice of the singer 1 input from the microphone 2 and detects a pitch component.
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 lyric telop flows on the screen as the performance is performed, the color of the characters in the part being played changes, and the singer sings the song according to the accompaniment. The arithmetic unit 5 evaluates the pitch with respect to the pitch component extracted by the voice detection unit 4, determines whether or not a waveform obtained by differentiating the pitch component is hiccup, and determines that the waveform is hiccup. Performs control 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 scooping evaluation unit 11. The pitch evaluation unit 10 inputs the pitch component of the voice information sung by the singer from the pitch 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 10b. Input to the other terminal. 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 singer long sing very well, for example, the difference between the pitch of the singer of the pitch of the performance data (b) of the t ₁ (a) is reduced. 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 the integrated value belongs to.
[0010]
FIG. 2 is further described.
The pitch component from the pitch detection unit 4 is differentiated by the differentiating circuit 11a, and a change in volume is extracted. Scooping increases the volume at a fixed rate relative to the volume, and usually has a ramp waveform. Therefore, if the pitch component from the pitch detection unit 4 includes such a hiccup, the differentiated signal appears as a spectrum with respect to the frequency of the volume change as shown in FIG.
If the spectrum is not stable, the spectrum does not have a smooth curve as shown in FIG. 5A, but has a jagged waveform as shown in FIG. 5B.
[0011]
In FIG. 2, the characteristics of the volume change from the differentiating circuit 11a are determined by the hiccup determining unit 11b. The signal determination result is sent to the evaluation unit 11c. The evaluation unit 11c determines whether or not an increase is shown at a fixed rate, whether or not the waveform is smooth, and outputs a signal as to whether or not a flicking is performed as an evaluation point. For example, a predetermined evaluation point is output when the signal is a hiccup signal, and an evaluation point 0 is output when the signal is not a hiccup signal.
[0012]
The evaluation points output from the evaluation section 11c are added to the evaluation points from the pitch evaluation section 6 in the addition section 12.
The evaluation points added by the adding unit 12 can be displayed in small increments on the display device 7 while singing, and when the song ends, the evaluation points of one song are displayed.
[0013]
FIG. 6 is a flowchart for explaining the operation of the karaoke scoring apparatus having a scooping 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") 601 and S602). When the singer starts singing (S603), the pitch detection unit 4 detects the pitch of the singer's song input from the microphone (S604). Then, the arithmetic unit 5 detects the hiccup by the differentiating circuit 11a, the hiccup determining unit 11b, and the evaluating unit 11c (S605). The pitch is also evaluated. The evaluation result is displayed (S606).
The arithmetic unit 5 determines whether or not the song has ended (S607). If the song has not ended, the process returns to S604 and repeats the same operation. When the song ends, the grading ends (S608).
[0014]
In the above-described embodiment, the hiccup is detected by a song that matches the music, but it is also possible to detect the hiccup irrespective of the music. In that case, only the scooping up evaluation section 11 of the arithmetic unit 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 evaluation by the scooping-up evaluation section is displayed in the same manner.
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.
[0015]
【The invention's effect】
As described above, the present invention, in addition to the scoring function for evaluating how well the pitch is reproduced for a normal melody guide, makes scoring up as a target for scoring, and adds scoring when scooping up is recognized. With such a configuration, it is possible to improve so that a person who is good at singing, which can add a hiccup as an effect, gets a high score. Further, the scooping scoring function can be used as a training device for scooping up.
[Brief description of the drawings]
FIG. 1 is a circuit block diagram showing an embodiment of a karaoke scoring device having a scooping 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 illustrating an example of a waveform of hiccup.
FIG. 5 is a diagram for explaining smoothness of hiccups.
FIG. 6 is a flowchart for explaining the operation of the karaoke scoring device having a scooping scoring function according to the present invention.
[Explanation of symbols]
Reference Signs List 1 singer 2 microphone 3 storage device 4 pitch detecting unit 5 arithmetic unit 6 music generating device 7 display device 8 loudspeaker 10 pitch evaluating unit 10a performance data pitch component 10b comparing units 10c, 11c evaluating unit 11 scooping-up evaluating unit 11a differential circuit 11b Part 12 Addition part

Claims (2)

A microphone to enter the singer's song,
Pitch detecting means for extracting a pitch component by performing a fast Fourier transform of 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 out from the storage device, the sound generation means is controlled to play an accompaniment, and the pitch components extracted from the singer's voice information input to the microphone are differentiated. Calculating means for detecting the hiccup component, comparing the pitch of the melody of the performance data with the pitch sung by the singer, performing the evaluation and also adding the evaluation for the hiccup component, and visually or audibly displaying the evaluation result,
A karaoke scoring device having a scoop-up scoring function, characterized by comprising: 2. A karaoke scoring system having a scooping scoring function according to claim 1, wherein said calculating means has a scooping-up evaluation means for estimating an appropriate scooping-up when the detected hiccup component has a predetermined ramp waveform. apparatus.

Images