JP2005107332A - Karaoke machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a Karaoke machine with a scoring function that makes it possible to accurately decide whether an actual singing is good by scoring timing corresponding to the genre of the music. <P>SOLUTION: The timing difference between the sounding timing of a guide melody and the singing start timing of a singing voice of a singer is detected and scored. Then the timing points are added to basic points calculated based upon accuracy of an interval to calculate final points. The timing points are calculated based upon a timing point table, which is provided for each genre such as pop music of traditional Japanese style and pop music to enable scoring matching timing feelings and rhythm feelings corresponding to respective genres. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an improvement in scoring accuracy in a karaoke apparatus having a singing scoring function.

  Conventionally, some karaoke apparatuses have a scoring function for scoring the skill of a singer. The scoring function that has been practically used in the past compares the pitch extracted from the reference such as a guide melody with the frequency extracted from the singing voice (for example, Patent Document 1), and adds the evaluation of the volume change to this. (Patent Document 2).

Japanese Patent Laid-Open No. 10-49183 JP-A-10-161673

  However, since the conventional scoring function only had a function to compare the singing frequency with the reference pitch as described above, the singing timing could not be detected accurately, and the volume and pitch could be scored with high accuracy. However, there is a drawback that the singing timing of the singer, that is, the rhythm feeling cannot be accurately scored.

  Since reference data such as guide melody data is data that progresses in a mechanically accurate rhythm, for example, scoring of karaoke songs that are often sung in a relatively free rhythm such as enka or ballad songs is referred to as this reference data. However, there was a problem that a good singing score was rather low.

  It is an object of the present invention to provide a karaoke apparatus with a scoring function that can accurately determine the skill of actual singing by scoring the timing according to the genre of a song.

  The invention according to claim 1 is based on performance data for playing karaoke music, reference data indicating singing melody and music data including genre data indicating genre of music, and performance data of the music data. Performing a karaoke song and supplying the reference data in synchronization with the performance of the karaoke song, a singing voice input unit for inputting a singing voice, and comparing the inputted singing voice with the reference data And grading means for detecting a timing difference that is the degree of advance or delay of the singing timing for each note, and scoring the detected timing difference by weighting according to the genre of this karaoke song. And

  According to a second aspect of the present invention, in the first aspect of the invention, the storage means stores, in addition to the music data, a timing point table storing points according to the magnitude of the timing difference for each genre, The scoring means scores the timing difference using a timing point table corresponding to the genre of the karaoke song being played.

  General reference data proceeds in a mechanically accurate rhythm without habits. Some songs sound good when sung with a mechanically accurate rhythm, while others sound good when sung with a free rhythm by breaking the mechanical rhythm. In the present invention, since the timing difference is scored by weighting according to the genre of music, the skill of actual singing according to the characteristics of the music as described above can be scored.

  According to a third aspect of the present invention, in the first and second aspects of the present invention, the reference data includes pitch information of each note of the singing melody and break information of each note, and the scoring means sings from the input singing voice The voice frequency is detected and compared with the pitch frequency of each note, and the timing at which the singing voice frequency approaches within a predetermined range from the pitch frequency of each note is set as the singing timing of that note. It is a means for detecting a timing difference by comparing with the start timing of a note.

  According to the present invention, the timing of the note is detected based on the note separation information, and the timing at which the singing voice approaches within a predetermined range from the pitch of the note is set as the singing timing of the note. Deviation in pronunciation timing can be detected, and highly accurate scoring of timing becomes possible.

  According to a fourth aspect of the present invention, in the first and second aspects of the present invention, the reference data includes pitch information of each note of the singing melody and break information of each note, and the scoring means sings from the input singing voice The voice frequency is detected and compared with the pitch frequency of each note, and the singing voice frequency and the reference data frequency in the predetermined section including the note to be scored are shifted relative to each other in the time axis direction to maximize the cross-correlation. It is a means for determining the position to be used, and taking the deviation amount as the timing difference of the note.

  When singing by a singing method such as so-called “shakuri”, it is sometimes difficult to determine the singing timing of notes on the way because the frequency changes gently. Even in this case, it is possible to detect the singing timing with high accuracy by detecting the difference between the reference and the singing by correlating the frequency change and setting this difference as the singing timing.

  As described above, according to the present invention, when a singer's song is scored based on the timing difference, the timing difference is scored by weighting according to the genre of the song. It is possible to score according to. Moreover, according to this invention, since the exact singing timing shift | offset | difference can be detected, it becomes possible to determine the skill of a song more accurately.

A karaoke apparatus according to an embodiment of the present invention will be described with reference to the drawings.
In a karaoke device, the performance of a karaoke song is the operation of outputting the background video / lyric telop to the monitor while generating the music of the karaoke song, but if the scoring mode is set, in addition to the performance of this karaoke song, the singer's performance The singing voice is scored by comparing it with a reference, and a scoring operation for calculating and displaying the score after the end of the song is executed.

  FIG. 1 is a block diagram of the karaoke apparatus. The karaoke apparatus is composed of a CPU 10 that controls the operation of the entire apparatus and various devices connected thereto. Connected to the CPU 10 are a hard disk 11, a RAM 12, a sound source 13, a mixer (effector) 14, a vocal adapter 19, an MPEG decoder 20, a synthesis circuit 21, and an operation unit 23.

The hard disk 11 stores music data for playing karaoke music, video data for displaying a background video on a monitor, and the timing point table for each genre shown in FIG.
In the RAM 12, an area for reading out programs and music data, a scoring log area for recording scoring results and the like in the scoring mode are set.

  The sound source 13 forms a musical sound signal in accordance with music data (note event data or the like) input by the music sequencer 31 executed by the CPU 10. The formed tone signal is input to the mixer 14. The mixer 14 gives an effect such as echo to the plurality of musical sound signals generated by the sound source 13 and the singing voice signal of the singer input via the microphone 17 -A / D converter 18. Mix the signal with an appropriate balance. The mixed digital audio signal is input to the sound system 15. The sound system 15 includes a D / A converter and a power amplifier. The input digital signal is converted into an analog signal, amplified, and emitted from the speaker 16. The effect that the mixer 14 gives to each audio signal and the balance of mixing are controlled by the CPU 10.

  The singing voice signal converted into a digital signal by the A / D converter 18 is also input to the vocal adapter 19. The vocal adapter 19 calculates the singing frequency from the input singing voice signal and also calculates the reference frequency input from the music sequencer 31 of the CPU 10. And this singing frequency and a reference frequency are synchronized and it inputs into CPU10 (scoring mode process 34) every 30 ms. As the reference, guide melody data included in the song data is used. The determined frequency is expressed as a cent value from C0.

  The background video data 41 stored in the HDD 11 is encoded in the MPEG2 format, and the background video reproduction program 33 executed by the CPU 10 reads it and inputs it to the MPEG decoder 20. The MPEG decoder 20 converts the input MPEG data into an NTSC video signal and inputs it to the synthesis circuit 21. The synthesizing circuit 21 is a circuit that synthesizes an OSD such as a lyrics telop or a scoring result display on the video signal of the background video. The synthesized video signal is displayed on the monitor display 22.

  The operation unit 23 includes a panel switch interface, a remote control receiving circuit, and the like, and inputs an operation signal to the CPU 10 according to the operation of the panel switch and the remote control device by the user. The CPU 10 detects this operation signal by the operation input processing program 35 and executes a corresponding process. The operation input processing program 35 is included in the system program.

  The panel switch and the remote control device are provided with various key switches for selecting a song number and selecting a mode such as a scoring mode.

  When a song number is input with a panel switch or a remote control device, the operation input processing program 35 detects this and transmits it to the sequencer 30 as a request for a karaoke song. In response, the sequencer 30 reads the song data of the karaoke song identified by this song number from the song data storage area 40 of the hard disk 11. The sequencer 30 includes a song sequencer 31 and a lyrics sequencer 32, and the lyrics sequencer 32 includes a character pattern creation program 32a. The music sequencer 31 reads the data of tracks such as performance data tracks and guide melody tracks in the music data, and controls the sound source 13 with this data to generate performance sounds of karaoke music. The lyrics sequencer 32 reads the data of the lyrics track in the song data, creates a lyrics telop image pattern based on the data, and outputs the image pattern to the synthesis circuit 21. Further, the background video reproduction program 33 reads predetermined background video data in accordance with an instruction from the sequencer 30 and inputs it to the MPEG decoder 20.

  Here, the music data stored in the hard disk 11 will be described with reference to FIG. As shown in FIG. 6A, the song data includes a header in which the song name and song genre are written, a music track for playing karaoke songs, a guide melody track for generating a guide melody, and a lyrics telop. It consists of lyric tracks for display. The song data has audio data, an audio data control track, etc. in addition to this, but it is omitted in this figure for the sake of simplicity.

  Each track is described according to the MIDI format. For example, the guide melody track is composed of event data such as note-on event data and note-off event data and timing data indicating the read timing of each event data, as shown in FIG. The note-on event data includes pitch data, and specifies the pitch of a musical tone (guide melody) generated by the note-on. This musical tone continues until the next note-off event data is read out.

  The timing data can be composed of duration data indicating the time interval between the event data, absolute time data indicating the absolute time from the start time of the music, and the like.

  The event data of the musical tone track and the guide melody track is composed of the note event data indicating the pitch, volume, on / off, etc. of the musical tone as described above, and by inputting this note event data to the sound source 13, the sound source Reference numeral 13 sounds or mutes the musical sound corresponding to the event data. The musical sound track is composed of a plurality of tracks (parts) for generating musical sounds of a large number of musical instruments, and the guide melody track is composed of single melody MIDI data for guiding the singing melody.

  On the other hand, the event data of the lyrics track is sequence data in which the lyrics telop of the karaoke song is implemented by system exclusive data, and has event data different from the musical tone track and the guide melody track. The event data is page break data, lyrics display data, and the like.

  In the performance of karaoke music in the normal mode, the sequencer 30 generates the karaoke performance sound and displays the lyrics telop as described above. In the scoring mode, the scoring process is performed by the scoring mode processing program 34 in addition to this. The action is executed.

  First, with reference to the functional block of FIG. 3, the process of each part at the time of scoring mode is demonstrated. The singing voice signal input from the microphone 17 is converted into a digital voice signal by the A / D converter 18 and input to the vocal adapter 19 (at the same time input to the mixer 14, but only the operation in the scoring mode is described here. To do). In the vocal adapter 19, this digital audio signal is input to the singing frequency detector 102 to detect the singing frequency (cent value).

  On the other hand, reference data is input from the song sequencer 31 to the reference frequency detector 101 in synchronization with the performance of the karaoke song. As described above, guide melody data is used as the reference data. The reference frequency detection unit 101 extracts pitch information from note-on event data of the input MIDI data, and outputs the pitch cent value as a reference frequency.

  The detection of the singing frequency by the singing voice detection unit 102 and the detection of the reference frequency by the reference frequency detection unit 101 are performed in synchronization every 30 ms, and the detection result is input to the scoring mode processing program 34 every 30 ms.

  Further, when note-on / off event data is input from the music sequencer 31, the reference frequency detection unit 101 notifies the scoring mode processing program 34 of note-on information and note-off information at the timing.

  In the scoring mode processing program 34, a frequency difference or timing difference with respect to the reference of the singing frequency is detected, the singing is scored based on this, and a final score is calculated and displayed on the monitor 22.

  The scoring process is as follows, for example. The scoring unit 107 compares the singing frequency with the reference frequency, calculates a difference (cent value), and determines a pass note and a fail note for each note (note) based on the difference. Note-on information / note-off information is input from the reference frequency detection unit 101 to the scoring unit 107 for each note (note). If the singing frequency matches the pitch of the singing melody in the note interval (the number of the singing melody is within the allowable range from the reference frequency), If the number of times that the singing frequency matches the pitch of the singing melody is less than the predetermined sample, it is determined that it is a “failed note”.

  Further, for each note, the timing of reference is compared with the singing timing of the singing voice of the singer to determine the timing difference, and the timing point is determined based on this timing difference. This timing point is determined with reference to a timing point table provided for each genre of karaoke music.

  When the music is finished, the scoring unit 107 calculates the final score by adding the total value of the timing points to the basic score calculated based on the number of accepted notes, and displays the final score on the monitor 22 together with advice and the like.

  A singing timing detection method will be described with reference to FIG. When the singer starts singing a note (note) and the utterance is manipulated, the singing timing is the singing timing, and when singing is started from a portion where there is no song such as singing, as shown in FIG. The timing d when the singing voice is input to the singing frequency detection unit 102 and the frequency detection is started is set as the singing timing. The time difference between the singing timing and the reference sounding timing R is the timing difference.

  On the other hand, when a plurality of notes are continuous in legato singing or the like, the timing a when the singing frequency approaches within a predetermined range (allowable range) near the sounding timing R as shown in FIG. To do.

  Moreover, it is good also as a singing timing catching the timing when the singer started trying to transfer to this note from the previous note. That is, in FIG. 6A, the timing b at which the pitch change starts immediately before the timing a approaching within the allowable range, the timing c at which the change slope becomes a predetermined value or more, and the like are set as the singing timing. May be.

  Note that FIG. 4A describes the change (rise) from a note with a low pitch to a high note, but the top and bottom is only inverted for the change (down) from a note with a high pitch to a low note. The same is true.

  In addition, the singing timing a in FIG. 9A is a delay direction, and the singing timings b and c and the singing timing d in FIG. Is not to be done.

  In addition, the range in which the timing difference between the sound generation timing R and the singing timings a, b, and c is detected is 1/2 to 1/1 each of the length of the previous note and the subsequent note (note generated at the sound generation timing R). A range of up to about 3 is acceptable. This is because even if the singing frequency meets this condition at a timing further away, it cannot be specified that this is a pitch change for the pronunciation of this note.

  The above singing timing detection method detects the singing timing by monitoring the change of the singing frequency. However, the method shown in FIG. The reference frequency and the singing frequency of the note and the subsequent note are moved in the time axis direction to obtain a cross-correlation, which determines the maximum position, and the position of the maximum cross-correlation and the original data position. Let the amount of deviation be the timing difference (e). With this method, the singing timing can be determined based on not only the waveform at the time of pitch change but also the waveform of the entire note.

  In the above comparison, instead of simply comparing the singing frequency and the reference frequency at the same timing, the reference frequency is moved back and forth on the time axis, and the corresponding singing voice is at a position where the cross-correlation between both sample sequences is maximum. The frequency is compared with the reference frequency. Cross correlation is

  However, it is also possible to take the difference between samples corresponding to each other when shifted and to set the position where the integrated value of the difference is minimum as the maximum correlation point.

  When a timing difference is detected by the above method, a timing point is determined by referring to the timing point table based on the timing difference.

  FIG. 5 is a diagram illustrating an example of a timing point table. FIG. 4A shows an example of a timing point table corresponding to “enka”. In the case of enka, in order to cope with the singing technique of “for” singing with a delay from the just timing, a large + point (addition) is given within the range of the delay from the just timing. On the other hand, since a singing song (push-in) is heard in impatience, a minus point (decrease) is given.

  On the other hand, FIG. 5B shows an example of a timing point table corresponding to “pops” karaoke songs. In the case of pops, since the rhythm is engraved with an accurate beat, singing is also required to be just timing, and it becomes a point even if it is greatly delayed or greatly advanced. A + point is given in the range of just timing and the range of slight advance.

  When a karaoke song is selected, a timing point table is selected according to the genre of the karaoke song, and a timing point is determined for each note of the song. When the karaoke song ends, the average value of all the timing points is calculated and added to the base score calculated based on the number of pass / fail notes to obtain the final score. The timing points may be calculated in the range of about +5 points to −5 points.

  FIG. 5 shows only timing point tables for enka and pop karaoke songs. However, timing point tables for various other genres may be provided. You may apply to all karaoke songs.

  The timing point calculation method is not limited to the timing point table, and other methods such as using a function may be used.

When the song is finished, a score is obtained based on the number of accepted and rejected notes determined for each note. The score is, for example, the percentage of the number of accepted notes to the total number of notes of the music, that is, the number of accepted notes divided by the total number of notes and multiplied by 100. In this weighted scoring, the number of accepted notes is divided by rank. The totals are multiplied and each weighting coefficient is multiplied, and the sum of the weighted values is divided by the total number of notes. In consideration of the entertainment function in the karaoke apparatus, 50 is added to a value obtained by multiplying this value by 50 to obtain a maximum of 100 points, and a minimum of 50 points is obtained. In this calculation method, only accepted notes are scored, but the number of rejected notes and their ranks may be scored.
Then, a final score is calculated by adding the total value of timing points determined based on the timing difference to this score.

  In addition, when comparing the frequencies for determining the pass notes and the fail notes, low-pass filter (LPF) processing (105, 106) may be performed on the singing frequency and the reference frequency, and the comparison may be made. The LPF process for the reference frequency is a process for smoothing the pitch change of a reference (see FIG. 6A), which is a mechanical pitch sequence, and approaching a human song. Further, the LPF processing for the singing frequency is processing for obtaining flat singing frequency information by removing techniques such as vibrato.

FIG. 6 is a diagram showing examples of reference frequency waveforms and singing frequency waveforms before and after LPF processing.
FIG. 6A shows an example of guide melody data used as a reference. The reference data is mechanical data in which the pitch changes discontinuously at an accurate beat timing even in a legato section in which notes are continuous. By performing LPF processing on such a discontinuous reference, the pitch gradually changes between notes as shown in FIG. It is possible to make the pitch change similar to that of singing. Note that rest sections where notes are interrupted, places where singing with non-legato, etc. are excluded from the LPF processing. As a result, it is possible to prevent the LPF processing from becoming unnatural due to the data of the section without sound.

  FIG. 6C is a diagram showing an example of singing voice frequency data. The singing voice frequency has a gentle transition (so-called “scribbling”) at the transition of notes (pitch), and has a periodic frequency change such as vibrato in the stretched part of the sound. . By performing LPF processing on this singing voice frequency data, it is possible to remove fine frequency changes such as overshoot and vibrato in the squeaky part, as shown in Fig. 4 (D), and accurately extract the frequency that was sung. Will be able to.

  The audio signal input from the microphone 17 includes various noises as well as the singing audio signal. When the level of the noise component is large, the frequency detection unit 102 may detect the frequency by regarding the noise component as a singing voice signal. If such a noise component is input to the LPF processing unit 106, not only the one sample but also erroneous data will be output after that. Therefore, if there is a sudden pitch change of 150 cents or more, which is difficult to consider as a frequency change of the singing voice, ignore the data (adopt the previous sample data again) and perform LPF processing. , It can prevent adverse effects due to noise.

  Since the data sequence of the singing frequency and the reference frequency is discrete data every 30 ms, the LPF processing unit 106 for the singing frequency uses a secondary filter with a cut-off frequency of 5.5 Hz in order to suitably achieve the above processing. The LPF processing unit 105 for the reference frequency uses a secondary filter having a cutoff frequency of 5 Hz.

  Note that LPF processing for the singing frequency and the reference frequency is not essential. Moreover, even if it carries out only with respect to either one, the said each effect can be acquired.

  In addition to the frequency determination, the cross-correlation in FIG. 4C is obtained by calculating the cross-correlation after performing LPF processing on both or one of the reference frequency and the singing frequency. Also good.

The processing of the scoring mode processing program 34 will be described with reference to the flowchart.
FIG. 7 is a flowchart showing the operation of the scoring mode processing program 34. In this operation, input from the vocal adapter 19 is monitored, and processing corresponding to the input data is executed. The input buffer is checked every 30 ms to capture the singing frequency and the reference frequency and confirm whether note-on / off information is input. When the singing frequency and the reference frequency are taken in (s1), raw data is written into the timing detection memory of the list memory (see FIG. 8) in order to detect the timing difference (s5). Then, LPF processing is executed for both of them (s6), and this LPF-processed sample data is written into the pitch detection memory of the list memory for detecting the frequency difference (pitch) (s7).

  Here, the list memory is a memory area set in the hard disk 11 or the RAM 12, and as shown in FIG. 8, sample data of raw reference frequency / singing frequency, reference frequency / singing frequency and note-on processed by LPF, It is set so that a predetermined amount of note-off event information is sequentially stored in the order of input. A frequency difference and timing difference are detected using data written in the memory area at the time of note-off, and a pass / fail note is determined.

  When note-on information is input from the reference frequency detector 101 (s2), it is written into the event information memory of the list memory (s10). The position where the note-on information is written corresponds to the reference sounding timing R shown in FIG.

  When note-off information is sent (s3), it is written in the event information memory (s11), and the pass / fail of the scoring note is determined based on the sample data stored in the pitch detection memory. (S12). This determination is a pass / fail determination based on the pitch (frequency difference). Further, a timing difference is detected based on the sample data stored in the timing detection memory, and a timing point is determined based on the timing difference (s13). The table used when determining the timing point corresponds to the genre of the karaoke song, and the timing point table is read with reference to the genre data in the header at the start of the karaoke song. Then, the pass / fail judgment result and the timing point are stored (s14).

  Repeat the above process for each note. When the music ends (s4), the score totaling process (s15) is executed.

  FIG. 9 is a flowchart showing the score totaling process. This operation is executed in s15 of the main routine. First, the total number of notes and the number of accepted notes are totaled (s30). Next, the number of accepted notes is divided by the total number of notes, this point is multiplied by 50, and then 50 is added to calculate a score (s31). Then, the timing points are totaled (s32). This aggregation of timing points is a process of calculating an average score obtained by adding all timing points and dividing by all notes. Then, the aggregated timing points are added to the score calculated from the number of accepted notes to calculate a final score (s33), and the final score, timing advice, and the like are displayed on the monitor 22 (s34).

A display example on the monitor 22 is shown in FIG. FIG. 2A shows an example in which the timing difference is displayed as a histogram. According to this display, the singing tendency of the singer can be known in detail. FIG. 5B shows an example in which the number of advanced notes and the number of delayed notes are displayed on the vertical axis / horizontal axis. According to this display, the singing tendency of the singer can be seen at a glance.
Alternatively, an average value of timing differences may be simply obtained and displayed.

  In this embodiment, the timing point table is provided for each genre, but may be provided for each karaoke song. For example, a timing point table may be included in the song data of the karaoke song so that it is delivered together with the delivery of the karaoke song. And in the case of the conventional music data which does not have the timing point table according to music, the timing point table according to the genre provided beforehand should just be used.

In this embodiment, when the singing voice input means starts detecting the singing voice frequency, this starting point is set as the singing timing regardless of the frequency.
As a result, when the singing is started from a portion where there is no song such as a break of a phrase, the time when the detection of the frequency is started and the detection of the frequency is set as the singing timing. As a result, the singing pitch may be off depending on the singer, but even in that case, the timing can be correctly determined.

The block diagram of the karaoke apparatus which is embodiment of this invention The figure which shows the structural example of the song data used with the karaoke apparatus The figure which shows the functional block of the scoring process of the karaoke apparatus The figure explaining the system of timing difference detection in the karaoke device The figure which shows the example of the timing point table which the same karaoke apparatus uses The figure explaining LPF processing in the karaoke apparatus Flow chart showing scoring processing operation of the karaoke apparatus The figure which shows the memory for timing detection of the same karaoke apparatus, and the memory for pitch detection The flowchart which shows the score totaling process of the same karaoke device The figure which shows the example of a display of the timing difference and advice in the karaoke apparatus

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... CPU, 11 ... Hard disk, 12 ... RAM, 13 ... Sound source, 14 ... Mixer, 15 ... Sound system, 16 ... Speaker, 17 ... Microphone, 18 ... A / D converter, 19 ... Vocal adapter, 20 ... MPEG decoder, 21 ... Synthesis circuit, 22 ... Monitor, 23 ... Operation part,
30 ... Sequencer, 31 ... Song sequencer, 32 ... Lyric sequencer, 32a ... Character pattern creation program, 33 ... Background video reproduction program, 34 ... Scoring mode processing program, 35 ... Operation input processing program,
40 ... song data storage area, 41 ... background video storage area, 43 ... scoring log,
DESCRIPTION OF SYMBOLS 101 ... Reference frequency detection part, 102 ... Singing frequency detection part, 105, 106 ... Low pass filter process part, 107 ... Scoring part

Claims (4)

Storage means for storing music data including performance data for playing a karaoke song, reference data indicating singing melody, and genre data indicating the genre of the song;
A performance means for performing a karaoke song based on the performance data of the song data and supplying the reference data in synchronization with the performance of the karaoke song;
Singing voice input means for inputting singing voice;
By comparing the input singing voice with the reference data, a timing difference that is the degree of advance or delay of the singing timing for each note is detected, and the detected timing difference is weighted according to the genre of this karaoke song Scoring means for scoring at
Karaoke device equipped with. The storage means stores, in addition to the music data, a timing point table storing points according to the magnitude of the timing difference for each genre,
The karaoke apparatus according to claim 1, wherein the scoring means scores a timing difference using a timing point table corresponding to a genre of a karaoke song being played. The reference data includes pitch information of each note of the singing melody and break information of each note,
The scoring means detects the singing voice frequency from the input singing voice, compares it with the pitch frequency of each note, and determines the timing when the singing voice frequency approaches within a predetermined range from the pitch frequency of each note. The karaoke apparatus according to claim 1 or 2, wherein the karaoke apparatus is a means for detecting a timing difference by setting a singing timing of a note and comparing the singing timing with a start timing of the note. The reference data includes pitch information of each note of the singing melody and break information of each note,
The scoring means detects the singing voice frequency from the input singing voice, compares it with the pitch frequency of each note, and sets the singing voice frequency of the predetermined section including the scoring target note and the frequency of the reference data in the time axis direction. The karaoke apparatus according to claim 1 or 2, wherein the karaoke apparatus is a means for determining a position where the cross-correlation is maximized by shifting each of the positions, and setting the shift amount as a timing difference of the notes.

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