JP2004233875A - Karaoke device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a karaoke device, which displays lyrics over an automatic musical performance, to easily evaluate singer's skill in singing and also easily let the singer know the result. <P>SOLUTION: In synchronism with the progress of a musical piece, a speech signal of the singer is compared with reference data to grade the singing. According to the scoring result, the character color of a lyrics subtitle is changed. Consequently, a graded part of the displayed lyrics is in a display color corresponding to the grading result, so the singer can judge his or her skill in singing for a fixed period wherein the continuous lyrics are displayed. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a karaoke apparatus having a function of evaluating the singing skill of a singer.
[0002]
[Prior art]
A karaoke apparatus having a function of evaluating a singer's voice sung along with a karaoke performance and displaying an evaluation result has been put to practical use. Generally, in this type of karaoke apparatus, during karaoke performance, the degree of deviation between MIDI (Musical Instrument Digital Interface (registered trademark)) data of a guide melody included in karaoke music data and singing voice data obtained by digitizing a singer's voice. Singing is evaluated based on.
[0003]
There are two main methods of displaying the evaluation: (A) a method of evaluating the singing through one song and displaying the score, which is the evaluation result over the entire singing after the performance, and (B) a measure of one song. There is a method in which an evaluation of a singing part immediately after singing is displayed on a monitor, and the display is updated as the performance progresses (for example, see Patent Documents 1 and 2).
[0004]
[Patent Document 1]
JP-A-10-69216
[Patent Document 2]
JP-A-2002-162978
[0005]
[Problems to be solved by the invention]
However, in these display methods, only the evaluation as a whole result is displayed in the method of (A), so that the partial evaluation of the singing cannot be specifically known, and in the method of (B), the evaluation is sequentially overwritten. Therefore, only a part of the evaluation just before can be confirmed on the monitor. In addition, in a method of displaying a score at a place distant from the lyrics subtitle as in Patent Document 2, in order to see the score while watching the lyrics subtitle, the viewpoint is frequently moved, and it is difficult to see. In the method of displaying a mark indicating a score, there is an inconvenience that a part of the lyrics is hidden by the mark.
[0006]
The present invention has been made in view of such a background, and an object of the present invention is to provide a karaoke apparatus that allows a singer to easily grasp the evaluation of his or her singing while singing.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, a karaoke apparatus according to the present invention includes: a voice input unit that outputs a voice signal corresponding to a voice of a singer to be input; Evaluation means for performing evaluation in synchronization and sequentially outputting evaluation data indicating the evaluation, and scoring color conversion control means for changing a display color of the lyrics display based on the evaluation data. I do.
In another aspect of the present invention, the music data includes guide melody data indicating a melody, and the evaluation unit performs evaluation by comparing the audio data with the guide melody data. And
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0009]
<Configuration of the embodiment>
FIG. 1 is a diagram showing the appearance of an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a karaoke apparatus main body. A monitor 2, speakers 3, 3, and a microphone 4 are connected to the karaoke apparatus main body 1. Reference numeral 5 denotes a remote control terminal for remotely controlling the karaoke apparatus main body 1 by infrared rays.
[0010]
FIG. 2 is a block diagram of the karaoke apparatus main body 1, and the functions of each section will be outlined below.
The CPU 11 controls each unit of the apparatus by using the RAM 13 as a work area and executing various programs stored in the ROM 12. These configurations are similar to those of a general computer.
The communication I / F (interface) 15 receives the music data from the host computer 6 that is the distribution source of the music data, and transfers the data to the HDD 14 under the control of the CPU 11. Data transfer to the HDD 14 by DMA (Direct Memory Access) is also possible.
[0011]
The operation unit 16 detects a signal generated by an input operation on the operation panel or the remote control terminal 5 of the karaoke apparatus main body 1 and outputs the detection result to the CPU 11.
The display control unit 17 performs control for displaying the video data, the lyrics caption, and the scoring result on the monitor 2.
[0012]
The tone generator 18 synthesizes a tone signal corresponding to the music data under the control of the CPU 11, and the synthesized signal is converted to an analog signal by a DAC (D / A converter) 19 and then output to the amplifier 22.
The audio data processing unit 20 decodes audio data such as chorus audio recorded in a format such as ADPCM (Adaptive Differential Pulse Code Modulation) included in the music data. The decoded audio signal is converted into an analog signal by the DAC 19 together with the tone signal, and is output to the amplifier 22.
The ADC (A / D converter) 21 converts the singing voice signal input from the microphone 4 into a digital signal and supplies the digital signal to the scoring device 23. The scorer 23 compares the singing voice data with the reference data, and outputs the result to the CPU 11. The amplifier 22 mixes and amplifies signals output from the microphone 4 and the DAC 19 and outputs the signals to the speakers 3 and 3.
[0013]
The HDD 14 stores music data and video data. Here, the contents of the music data stored in the HDD 14 will be described with reference to FIG. The music data is composed of a header, a musical sound track, a guide melody track, a lyrics track, an audio track, an effect track, and the like. The header stores various information related to the music data, for example, data such as a music number, a music title, a genre, a release date, and a music performance time.
[0014]
As shown in FIGS. 4 and 5, each track of the music data is composed of sequence data including a plurality of event data and duration data Δt indicating a time interval between the events. The CPU 11 reads out the data of each track in parallel according to a sequence program (application program for karaoke performance) during karaoke performance. When reading the sequence data of each track, Δt is counted by a predetermined tempo clock, and when the counting is completed, the subsequent event data is read and processed.
[0015]
As shown in FIG. 4, tracks of various parts including a melody track and a rhythm track are formed on the musical tone track.
As shown in FIG. 5, the melody of the vocal part of the karaoke song, that is, the melody sequence data to be sung by the singer is written in the guide melody track. In the present embodiment, this guide melody is referred to as reference data, and is used as a singing score standard.
[0016]
The lyrics track is composed of sequence data for displaying lyrics on the monitor 2. Although this sequence data is not musical sound data, this track is also described in the MIDI data format to facilitate the work process. The lyrics track is a system exclusive message as a type of MIDI data. The lyrics track usually includes character data corresponding to one line of lyrics displayed on a monitor, display coordinates on the monitor screen, display time, and wipe sequence data. The wipe sequence data is sequence data for changing the display color of the lyrics (this is called a wipe) in accordance with the progress of the song, and for changing the coordinates of the lyrics and the display color (when the lyrics are displayed). Is the data sequentially recorded over the length of one line. Description of other tracks is omitted.
[0017]
Next, the contents of the memory map of the RAM 13 will be described with reference to FIG. As shown in the figure, a RAM 13 has a MIDI buffer 130 for temporarily storing reference data, a scoring data storage area 132 for accumulating and storing scoring data for comparing reference data and singing voice data, and a karaoke performance. An execution data storage area 133 for storing music data and a program storage area 134 for storing loaded system programs and application programs. A reference data register 131 for storing the reference data is set inside the MIDI buffer. Further, inside the scoring data storage area 132, each of the elements ΔD and ΔE of the scoring data for each ΔT is stored.
[0018]
<Operation of Embodiment>
Next, the operation of the karaoke apparatus having the above configuration will be described.
First, when the user performs a music designation operation on the operation unit 16, the music data of the designated music is transferred to the MIDI buffer of the RAM 13, and the transferred music data is sequentially read out by the CPU 11 so that the CPU 11 reads out the music data. The reproduction of the music starts. At the same time, a scoring process is executed in response to an interrupt request generated at a fixed time interval ΔT (50 ms in the evaluation example). In addition, when the reproduction of the music is started and the performance reaches a certain part of the lyrics, the lyrics subtitle is displayed on the monitor 2. In accordance with the wipe sequence data, the lyrics subtitles are subjected to character wipe processing as the performance progresses.
[0019]
When the singer sings according to the reproduction of the music, the singing voice of the singer is input from the microphone 4 and input to the ADC 21. The ADC 21 converts the input singing voice signal into a digital signal and supplies it to the scorer 23 as singing voice data. The CPU 11 extracts reference data from the reference data register 131 of the RAM 13 in synchronization with the progress of the performance. A score is obtained by the scorer 23 performing a comparison process between the reference data and the singing voice data for the interval and the pitch for each ΔT. There are several methods for scoring and displaying the results, examples of which are shown below.
[0020]
(Scoring / scoring color conversion processing)
Hereinafter, the scoring process of this embodiment will be described with reference to the flowchart of FIG. First, singing voice evaluation processing is performed (step s11). This process is shown in the flowchart of FIG.
[0021]
First, it is determined whether both the reference data and the singing voice data have non-zero values (step s101). In the case of YES, that is, this means that the singing voice data of the singer exists in the part to be originally sung, and in this case, the difference ΔD of the pitch at the minute time ΔT is obtained (step s102). The difference is 0 if the reference data and the singing voice data indicate the same pitch, and a difference occurs if they differ.
[0022]
In the present embodiment, the unit used in the calculation of the difference ΔD is Cent (cent) in order to calculate the difference in pitch not on the scale of frequency but on the scale of 12 scales. Note that the frequency is f ₁ , F ₂ The pitch difference X (cent) between the two tones is expressed by Equation 1.
(Equation 1)
X = 1200 × log ₂ (F ₁ / F ₂ )
[0023]
On the other hand, in step s101, if at least one of the reference data and the singing voice data is not 0, that is, if one or both of the reference data and the singing voice data are not 0, the process proceeds to step s103. In step s103, it is determined which one of them is. In the former case, that is, "the sound is not produced in the originally pronounced part" or "the sound is produced in the originally non-produced part". Is recorded in (step s104). In the latter case, since the sound is not produced in the portion that should not be produced, this is normal. At this time, 0 is recorded in the abnormal ΔE (step s105).
Thus, the singing voice evaluation processing ends, and the process proceeds to step s12.
[0024]
In step s12, the score P in the minute time ΔT ₁ Ask for. P ₁ Is a value obtained by subtracting the difference ΔD and the abnormality ΔE stored in the scoring data storage area 132 inside the RAM 13 from a perfect score (100 in this embodiment). That is, P ₁ Is represented by Equation 2.
(Equation 2)
P ₁ = 100- (a ₁ ΔD + b ₁ ΔE)
In Equation 2, a ₁ , B ₁ Represents a constant for weighting.
[0025]
P ₁ Is obtained, a scoring color conversion process for the lyrics caption is performed using this result (step s13). This process can be represented by the flowchart of FIG. 11, and will be described below with reference to FIG. The scoring color conversion process for lyrics subtitles is as follows.
First, a binary threshold P for the score _a , P _b Is set in advance. The setting of the threshold value is optional, but an appropriate value is determined so that the singer's singing evaluation can be classified into three levels of “good”, “normal”, and “bad”. Singer's score P ₁ Is P ₁ <P _a Or P _b <P ₁ , Ie, the lyrics subtitles in the “bad” or “good” part of the score, the scoring color conversion processing is performed.
[0026]
In step s201, P ₁ See P ₁ , The value is P _a And P _b And a branch process is performed based on the result (step s202). Where P ₁ <P _a If so, the wipe color is set to red (display color in the case of a low score) (step s203), and P _b <P ₁ If so, the wipe color is changed to blue (display color in the case of a high score) (step s205), and P _a ≤P ₁ ≤P _b If so, the wipe color is set to the normal color (step s204).
When the wipe color is determined, the coordinates are obtained from the wipe sequence data (step s206), and the subtitle scoring color conversion processing displayed on the monitor 2 is executed (step s207).
[0027]
When the grading color conversion process for the lyrics caption of the portion is completed, ΔD and ΔE stored in the grading data storage area 132 in the RAM 13 are cleared (step s14), and a memory area is secured for the next grading process. You.
As described above, the scoring process is performed every minute time ΔT, and the above process is performed for each ΔT until the music ends. That is, the evaluation is performed in synchronization with the progress of the music, and the scoring results indicating the evaluation are sequentially output.
[0028]
In this embodiment, the character wipe process and the scoring color conversion process are performed simultaneously and in the same place. That is, the display color of the character wipe process is determined according to the scoring result. However, character wiping is generally performed in advance of the actual melody by about 0.5 seconds with a time lag, considering that the singer starts singing after seeing the lyrics subtitles, Actually, the position where the character is wiped is different from the position where the marking is completed (see FIG. 12). However, since the interval between the two is negligibly small when displayed on the monitor 2, both are processed as the same position in this embodiment, including the purpose of enhancing the visibility. FIG. 13 shows an example of singing and scoring according to the present embodiment, and FIG. 14 shows an example of a scoring color conversion process for lyrics subtitles on the monitor 2 when the results of FIG. 13 are obtained. FIG. 13 shows that the singing has been completed up to the part (A). As shown in FIG. 14, in this embodiment, P ₁ <P _a Or P _b <P ₁ In all of the positions, the lyrics subtitle scoring color conversion process is performed.
[0029]
As described above, the score of the singer is displayed in the lyrics subtitles on the monitor 2 in a color-coded manner for a certain period of time during the singing, and the singer refers to the color of the lyrics subtitles as to whether the singer has performed or not. By doing so, it is possible to confirm during the singing.
[0030]
Note that, based on the same processing as in the above embodiment, the positions of the character wipe processing and the scoring color conversion processing may be shifted and executed. That is, the scoring color conversion process is executed from the position where the scoring is completed, without making the position where the scoring color conversion process is executed approximately the same as the position where the character is wiped. In this case, in the part that performs the scoring color conversion process, the coordinates are acquired from the wipe sequence data, and the execution position of the scoring color conversion process is determined. As the execution position of the scoring color conversion process, the scoring color conversion process may be sequentially performed on the relevant portion immediately after the completion of the scoring process, but a certain interval from the character wipe position may be provided to enhance visibility. Is also good. That is, the interval between the character wipe position and the color conversion position may be determined by an arbitrary number of dots in the horizontal direction of the monitor 2.
[0031]
(Modification 1 of scoring color conversion processing)
Various modifications can be made to the scoring color conversion processing of the above-described embodiment. Hereinafter, a modification example in which an average score is obtained for each bar and the scoring display is executed in bar units will be described with reference to a flowchart shown in FIG. Will be explained.
[0032]
First, singing voice evaluation processing is performed (step s21). This process is shown in the flowchart of FIG. The description of the figure has been omitted since it has already been made, and the process proceeds to the next step s22.
In step s22, it is determined whether or not the performance has reached a bar break. If the determination is YES, the process proceeds to step s23. If the determination is NO, the process of step s21 is repeated until the bar break is reached.
[0033]
In step s23, the score P in the minute time ΔT ₂ Is calculated as an interrupt process. P ₂ Is a value obtained by subtracting ΔD and ΔE stored in the scoring data storage area 132 in the RAM 13 from a perfect score (100 in this modification), and the processing is performed as follows.
First, a cumulative value is obtained for each of the difference ΔD and the abnormality ΔE in which one bar is accumulated and stored. Here, the accumulated values of the difference ΔD and the abnormality ΔE are D and E, respectively.
When D and E are found, the score per measure P ₂ Is required. P ₂ Is a value obtained by subtracting D and E from the perfect score. That is, Equation 3 is obtained.
[Equation 3]
P ₂ = 100- (a ₂ D + b ₂ E)
In Equation 3, a ₂ , B ₂ Represents a constant for weighting.
[0034]
P ₂ Is obtained, a scoring color conversion process for the lyrics caption is performed using this result (step s24). This process can be represented by the flowchart of FIG. 11, and will be described below with reference to FIG. The scoring color conversion process for lyrics subtitles is as follows.
[0035]
First, a binary threshold P for the score _a , P _b Is set in advance. The setting of the threshold value is arbitrary, but an appropriate value is determined so that the singer's singing evaluation can be classified into three levels of “good”, “normal”, and “bad”. Singer's score P ₂ Is P ₂ <P _a Or P _b <P ₂ , That is, the subtitles in the “bad” or “good” score points are subjected to scoring color conversion processing.
[0036]
In step s201, P ₂ See P ₂ , The value is P _a And P _b And a branch process is performed based on the result (step s202). Where P ₂ <P _a If so, the wipe color is set to red (display color in the case of a low score) (step s203), and P _b <P ₂ If so, the wipe color is changed to blue (display color in the case of a high score) (step s205), and P _a ≤P ₂ ≤P _b If so, the wipe color is set to the normal color (step s204).
When the wipe color is determined, the coordinates are obtained from the wipe sequence data (step s206), and the subtitle scoring color conversion processing displayed on the monitor 2 is executed (step s207).
[0037]
When the grading color conversion process for the lyrics caption of the part is completed, ΔD and ΔE stored in the grading data storage area 132 in the RAM 13 are cleared (step s25), and a memory area is secured for the next grading process. Is done.
As described above, the scoring process is performed for each bar, and the above process is performed for each bar until the music ends.
[0038]
FIG. 16 shows a display mode of the lyrics subtitles on the monitor 2 when the singing shown in FIG. 15 is performed in this modification. In the figure, the singing has been completed up to the portion (a) of the measure D. As can be seen from these two figures, in the present modification, the display color is determined by the average point for each bar, so even if the threshold value is crossed between bars, the lyrics subtitle portion of the bar is not included in any one of the bars. Displayed in color. For this reason, the evaluation of each bar is not determined until the performance of the bar is completed, and the display color is not determined when the wipe is progressing in the middle of the bar as indicated by the dot (a). The wipe proceeds with the normal wipe color, and after the singing of the entire bar ends, the scoring color conversion process is performed. Thus, the scoring color conversion process is performed at a position different from the color change process by the wipe.
[0039]
As described above, the score of the singer is displayed in the lyrics subtitles on the monitor 2 in a color-coded manner during the singing for a certain period of time, and the singer can judge whether or not his singing is successful or not by changing the color of the lyrics subtitles. By referring to it, it becomes possible to confirm it while singing.
[0040]
(Modification 2 of scoring color conversion processing)
Next, a modified example in which the scoring is executed in a minute time ΔT unit, but the scoring color conversion process is executed in bar units later than the character wipe process will be described with reference to the flowchart of FIG.
[0041]
First, singing voice evaluation processing is performed (step s31). This process is shown in the flowchart of FIG. The description of the figure has been omitted since it has already been made, and the process proceeds to the next step s32.
In step s32, the score P in the minute time ΔT ₃ Ask for. P ₃ Is a value obtained by subtracting the difference ΔD and the abnormality ΔE stored in the scoring data storage area 132 inside the RAM 13 from a perfect score (100 in this modification). That is, P ₁ Is represented by Equation 4.
(Equation 4)
P ₃ = 100- (a ₃ ΔD + b ₃ ΔE)
Note that in Equation 4, a ₃ , B ₃ Represents a constant for weighting.
[0042]
P ₃ Is required, P ₃ Is stored in the scoring data storage area 132 in the RAM 13, and the process proceeds to the next step s33.
In step s33, it is determined whether or not the performance has reached a bar break. If this is YES, the process proceeds to step s34, and if NO, the processes of steps s31 and 32 are repeated until the bar break is reached.
[0043]
After reaching a bar break, P ₃ Is obtained, a scoring color conversion process for the lyrics caption is performed using this result (step s24). This process can be represented by the flowchart of FIG. 11, and will be described below with reference to FIG. The scoring color conversion process for lyrics subtitles is as follows.
[0044]
First, a binary threshold P for the score _a , P _b Is set in advance. The setting of the threshold value is arbitrary, but an appropriate value is determined so that the singer's singing evaluation can be classified into three levels of “good”, “normal”, and “bad”. Singer's score P ₃ Is P ₃ <P _a Or P _b <P ₃ , That is, the subtitles in the “bad” or “good” score points are subjected to scoring color conversion processing. The processing contents are as follows.
[0045]
In step s201, P ₃ See P ₃ , The value is P _a And P _b And a branch process is performed based on the result (step s202). Where P ₁ <P _a If so, the wipe color is set to red (display color in the case of a low score) (step s203), and P _b <P ₁ If so, the wipe color is changed to blue (display color in the case of a high score) (step s205), and P _a ≤P ₁ ≤P _b If so, the wipe color is set to the normal color (step s204)
[0046]
When the wipe color is determined, the coordinates are obtained from the wipe sequence data (step s206), and the subtitle scoring color conversion processing displayed on the monitor 2 is executed (step s207).
[0047]
When the grading color conversion process for the lyrics caption of the part is completed, ΔD and ΔE stored in the grading data storage area 132 in the RAM 13 are cleared (step s25), and a memory area is secured for the next grading process. Is done.
The scoring process is performed as described above, and the above process is performed for each bar until the song ends.
[0048]
FIG. 18 shows a display mode of the lyrics subtitles on the monitor 2 when the singing shown in FIG. 17 is performed in this modified example. In the figure, the singing has been completed up to the portion (a) of the measure D. As can be seen from these two figures, in the present embodiment, the display color is determined by the score obtained for each ΔT. However, instead of displaying the score in real time as in the examples shown in FIGS. 13 and 14, each time the performance of each bar is completed, the scoring color conversion process of the bar that has been completed is performed. Therefore, measures for which the singing has not been completed to the end (for example, measure D in FIG. 17) are displayed in a normal wipe color until the singing of the entire measure is completed, and a scoring process is performed when the singing of the entire measure is completed. Display color is determined. Thus, the scoring color conversion process is performed at a position different from the color change process by the wipe.
[0049]
As described above, the singers' high and low scores are indicated in the lyrics subtitles on the monitor during the singing for a certain period of time, and the singers can sing or sing by referring to the color of the lyrics subtitles. It will be possible to check inside.
[0050]
<Modification>
Note that the present invention is not limited to the above-described embodiment, and various modifications as exemplified below are possible.
[0051]
<A. Modification 1>
In the above-described embodiment, the evaluation method is as described above. However, if the score can be calculated for each ΔT, the evaluation method is not particularly limited to the above-described method. Is good. For example, in the above-described embodiment, the pitch component and the pitch component of the singing voice are compared with the reference data, and the evaluation is performed by combining the two evaluations. A method of evaluating only one of them as reference data is also conceivable. Further, a simpler evaluation method, such as using a sound volume component as reference data and evaluating whether the sound volume is equal to or higher than a predetermined value, is also possible.
[0052]
<B. Modification 2>
In the above-described embodiment, the score processing is performed by extracting the pitch component and the pitch component of the singing voice data and the reference data for each ΔT, and calculating the score P by the deduction method based on ΔD and ΔE. However, it is of course possible to perform the scoring process by another method. For example, it is conceivable to evaluate only the pitch or to add an element other than the pitch and the pitch to the evaluation. The scoring method is not particularly limited as long as the condition that an evaluation object is extracted for a singing every minute time and the evaluation can be given is satisfied.
[0053]
<C. Modification 3>
In the above-described embodiment, the color conversion is performed in two colors. However, it is also possible to perform color conversion on only one of a high evaluation part and a low evaluation part with one color. By setting and increasing the number of colors to be used, or by displaying gradations, it is possible to reflect the scoring results on the monitor more finely.
In the case of displaying in multiple colors, if the score rises and falls rapidly in a short time, the color will change rapidly, and the visibility may be deteriorated. In such a case, the change in the score may be approximated by a smoother curve as shown in FIG. 19, and a scoring color conversion process may be performed in accordance with the approximation to display.
Also, with regard to the display color, it is possible to give higher entertainment by displaying or blinking the part with the highest score particularly in gold.
[0054]
<D. Modification 4>
In the above-described embodiment, the timing of the color conversion is synchronized with the character wipe or divided for each bar. However, the color conversion can be performed at various timings such as for each note or for each bar. When lyrics are displayed in a plurality of lines, a grading color conversion process may be performed by performing a grading process for each singed line.
Also, if data indicating the break of a word or a phrase is inserted into the music data, it is possible to calculate a score for each word or phrase by reading and using the data.
[0055]
【The invention's effect】
As described above, according to the present invention, a singer can easily grasp the evaluation of his or her singing while singing.
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram of a karaoke apparatus according to an embodiment of the present invention.
FIG. 2 is a block diagram showing an electrical configuration of a karaoke apparatus main body according to the embodiment.
FIG. 3 is a diagram showing a format of music data in the embodiment.
FIG. 4 is a diagram showing a configuration of a music track of the music data.
FIG. 5 is a diagram showing a configuration of a guide melody track of the music data.
FIG. 6 is a diagram showing a memory map of a RAM in the karaoke apparatus.
FIG. 7 is a flowchart illustrating a singing score process according to the embodiment;
FIG. 8 is a flowchart illustrating singing scoring processing in a first modification of the scoring color conversion processing of the embodiment.
FIG. 9 is a flowchart illustrating a singing scoring process in a modified example 2 of the scoring color conversion process of the embodiment.
FIG. 10 is a flowchart illustrating a singing voice evaluation process in the embodiment.
FIG. 11 is a flowchart illustrating a scoring color conversion process for lyrics subtitles in the embodiment.
FIG. 12 is a diagram exemplifying a character wipe position and a scoring completion position in the embodiment.
FIG. 13 is a diagram illustrating a singing and a scoring result in the embodiment.
FIG. 14 is a diagram exemplifying a display mode of lyrics subtitles on a monitor 2 in the embodiment.
FIG. 15 is a diagram exemplifying a singing and a scoring result in a first modification of the scoring color conversion process of the embodiment.
FIG. 16 is a diagram exemplifying a display mode of lyrics subtitles on a monitor 2 in a modified example 1 of the scoring color conversion process of the embodiment.
FIG. 17 is a diagram exemplifying a singing and a scoring result in Modification 2 of the scoring color conversion process of the embodiment.
FIG. 18 is a diagram exemplifying a display mode of lyrics subtitles on a monitor 2 in a modified example 2 of the scoring color conversion process of the embodiment.
FIG. 19 is a diagram exemplifying an approximate curve of a scoring result in the embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Karaoke apparatus main body, 2 ... Monitor, 3 ... Speaker, 4 ... Microphone, 5 ... Remote control terminal, 11 ... CPU, 12 ... ROM, 13 ... RAM, 14 ... HDD, 15 ... Communication I / F, 16 ... Operation part , 17 ... Display control unit, 18 ... Sound source device, 19 ... DAC, 20 ... Sound data processing unit, 21 ... ADC, 22 ... Amplifier, 23 ... Scoring device, 130 ... MIDI buffer, 131 ... Reference data register, 132 ... Scoring Data storage area, 133: execution data storage area, 134: program storage area.

Claims (5)

A karaoke apparatus that performs automatic performance based on music data and displays lyrics in synchronization with the automatic performance based on lyrics data indicating lyrics,
Voice input means for outputting a voice signal corresponding to the voice of the input singer,
Evaluation means for evaluating the audio signal output by the audio input means in synchronization with the progress of the music, and sequentially outputting evaluation data indicating the evaluation;
A karaoke apparatus comprising: a scoring color conversion control unit that changes a display color of the lyrics display based on the evaluation data. 2. The karaoke machine according to claim 1, further comprising character wipe processing means for sequentially changing the color of the lyrics at the timing of singing, wherein said scoring color conversion control means determines the color of the color change by said character wipe processing means. apparatus. Character scoring processing means for sequentially changing the color of the lyrics at the timing to be sung, wherein the scoring color conversion control means changes the display color of the lyrics display at a position different from the color change by the character wipe processing means. The karaoke apparatus according to claim 1, wherein Computer
Means for performing an automatic performance based on the music data,
Means for performing lyrics display in synchronization with the automatic performance based on lyrics data indicating lyrics,
Evaluation means for evaluating an audio signal corresponding to the input singer's voice in synchronization with the progress of the music, and sequentially outputting evaluation data indicating the evaluation;
A program that functions as a scoring color conversion control unit that changes a display color of the lyrics display based on the evaluation data. A computer-readable recording medium storing the program according to claim 4.

Images