JP4452671B2 - Karaoke device with assist evaluation function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To evaluate the assisting capability of a singer who assists when one of singers who sing a duet with a karaoke machine forgets a way of singing during singing, preferably, to accurately confirm a request for an assist and to enable the singers to accurately recognize the request for the assist and clearly know the timing of the assist. <P>SOLUTION: The karaoke machine calculates score values by scoring sections set in musical pieces of the respective singing parts based upon references previously set by karaoke microphones corresponding to singing parts of a duet song, and when any of calculated score values of a specified number of successive scoring sections of one singing part decreases below the previously set reference value, the karaoke machine evaluates score values of scoring sections where the other singer sings the one singing part and/or the time when the reference value increases from the point of time when the reference value decreases as a judgment element. <P>COPYRIGHT: (C)2007,JPO&amp;INPIT

Description

  In the present invention, when singing a double song (hereinafter referred to as a duet song) using a karaoke microphone, when one singer forgets how to sing while singing, singing assistance by the other singer It is related with the karaoke apparatus which enabled it to evaluate the assist capability with respect to.

  As is well known, the karaoke apparatus is designed to synthesize and play the singer's voice input from the karaoke microphone with the performance sound of the karaoke music, and preset the pitch and tempo according to the singing ability of the singer. In addition, functions such as evaluating singing ability and scoring singing ability are known. In such a karaoke apparatus, the music selected by the singer is automatically played, and the singer advances the singing (hereinafter referred to as vocal) in accordance with the flow of the performance sound of the music.

  In such a karaoke apparatus, if the singer forgets how to sing during singing and the singer's vocal is interrupted, only the performance sound is continuously reproduced. In order to solve this problem, the vocal sound is stored in advance in the storage means of the system, and has means for calculating the volume of the vocal and the volume of the performance sound. A system is known in which a vocal sound is read from the storage means and a vocal sound is reproduced together with a performance sound (for example, Patent Document 1).

Such a system automatically switches to a performance with vocals when the singer's voice is interrupted, while the singer automatically resumes singing and becomes karaoke when the voice is generated, so the singing content is completely It is supposed to be able to enjoy karaoke without mastering, and it is supposed to wipe out the difficult and troublesome operations that have been done so far by switching the switch.
JP 04-298793 A

  In the system as described above, the device technique assists the singer's forgetting how to sing, and is effective for the song that the singer sings alone. However, when different singers sing for each singing section (hereinafter referred to as singing part), such as duet songs, one of the singers forgets how to sing during singing as an ordinary practice. When this happens, it is natural for the other singer to assist, and it is a fact that the assist by the device technology is unpleasant and unpleasant.

  In addition, singing ability scoring is possible even in duet songs, but if the assistance by the device technology is interposed, the singer's accurate singing ability cannot be scored and all parts are sung by both singers. It would be desirable to score the singing ability. In a duet song, the singing powers of both singers are not necessarily excellent, and the music may advance while the other singer assists the other. At that time, even if the other singer's assist is excellent, although the scoring result of the singer who received the assist is improved, there has conventionally been no mechanism for evaluating the singer who performed the assist. That is, the assist ability is ignored.

  The present invention has been made in view of such conventional problems, and when singing a duet song with a karaoke device, when one singer forgets how to sing during singing, the singer who assists It is desirable to provide a karaoke apparatus that can recognize the request for assistance accurately and that makes the timing of assistance clear among singers.

  Therefore, the present invention determines that one singer has forgotten how to sing based on a preset standard value of the singing ability scoring, whereas the other singer is instead of one singer, Whether or not the singing part was accurately sung is replaced by the reference set for each karaoke microphone of each singing part and obtained from the scoring result of the other singer. Establishing a mechanism to judge the assistance ability of the other singer by judging that the singer has returned to singing based on the previous singing ability scoring and comprehensively including the return time Thus, the inventors have found that the above object can be achieved, and have come up with the karaoke apparatus of the present invention.

That is, in the karaoke apparatus according to claim 1 of the present invention,
Each singer has a double-song for sharing the singing part, and each double-song has a plurality of scoring sections. Singing ability scoring means, reference replacement means, and assist evaluation Means,
(A) Singing power scoring means calculates a scoring value for each scoring section of each singing part based on a preset reference for each karaoke microphone corresponding to each singing part in the double-song music,
(B) The reference replacement means is a karaoke microphone of the other singing part when the calculated scoring value falls below a preset reference value between a predetermined number of consecutive grading points in one singing part. Is replaced with the reference set in the karaoke microphone of the one singing part, and is calculated in a predetermined number of consecutive scoring intervals corresponding to the singing part of the one singer. When the scoring value exceeds the reference value, or when the music performance is switched to the singing part including the singing part of the other singer, the reference of the replaced karaoke microphone is set as the set reference. Return,
(C) During the replacement of the reference, the assist evaluation means is configured such that the reference value exceeds the reference value from the time when the score value and / or the reference value of the scoring section where the other singer sang the one singing part falls. The time to the point in time is evaluated as a judgment factor.

In the karaoke apparatus according to claim 2 of the present invention,
(D) During the replacement of the reference, the assist evaluation means determines that the reference value is determined from the average score value for the singing of each scoring section in the one singing part by the other singer, and from the time when the reference value falls below. In addition to the time until the time when it exceeded, the time from the time when the reference value fell to the time when the other singer started singing the one singing part was evaluated as a determination factor.

Furthermore, in the karaoke apparatus according to claim 3 of the present invention, in addition to the singing ability scoring means, the reference replacement means, and the assist evaluation means, it further comprises an assist notification means,
(E) The assist notification means notifies the singer of an assist request with a screen display and / or audio output when the reference value falls below.

  According to the karaoke apparatus according to claim 1 of the present invention, when the singing part of one singer has forgotten how to sing (state where the scoring value is lower than a preset reference value), the other singer By using the degree of accuracy of the singing assistance made and the length of the return time to the singing of one singer by the singing assistance as an evaluation judgment factor, There is an effect that the assist ability can be evaluated.

  Moreover, according to the karaoke apparatus of claim 2, the response to assist by incorporating the time from when one singer forgets how to sing until the other singer starts singing assistance into the judgment element. This speed is also subject to assist evaluation, and the singer's assist ability can be evaluated in more detail.

  Furthermore, according to the karaoke apparatus of claim 3, when singing a duet song, when the singing part of one singer has forgotten how to sing, the other singer requests the assistance by the monitor screen display or voice. Can be recognized accurately, and there is an effect that the timing of assistance between singers becomes clear.

  And according to the karaoke apparatus of Claim 1 thru | or 3, the karaoke apparatus which can perform singing ability scoring in a duet music correctly, improves the amusement property of a karaoke apparatus, and contributes to a singer's singing ability improvement, can do.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows an outline of the overall configuration of the present invention. To facilitate understanding of the present invention, the configuration of each part in FIG.

  Reference numeral 50 in FIG. 1 denotes a central processing unit (hereinafter referred to as a CPU) that controls each unit of the karaoke apparatus. The CPU 50 includes a ROM 51, a RAM 52, a communication control unit 53, and a hard disk device (hereinafter referred to as a CPU) via a system bus BUS. , HDD) 54, remote control receiving unit 55, sound source device 56, character display unit 57, display control unit 58, voice data processing part 60, singing ability scoring unit 68, and assist necessity determination unit 69.

  The ROM 51 stores a startup program for performing initial settings when the karaoke apparatus of the present invention is turned on. When the apparatus is turned on, the startup program stores the system program and application program stored in the HDD 54. Is loaded into the RAM 52. In addition to the system program and application program, the HDD 54 stores a music data file to be reproduced during karaoke performance.

  Here, the contents of the music data will be described with reference to FIGS. FIG. 2 shows the format of music data for one music piece of music data stored in the HDD 54, and FIG. 3 and FIG. 4 show the contents of each track of the music data. The content of the music data in FIG. 2 includes a header, a musical sound track, a guide melody track, a lyrics track, an audio track, an effect track, and an audio data portion. Various information related to the music data is written in the header. For example, data such as a music number, a music title, a genre, a release date, and a performance time are written.

  As shown in FIGS. 3 and 4, each track from the musical sound track to the effect track is composed of a plurality of event data and sequence data including duration data Δt indicating a time interval between the events. The CPU 50 reads the data of all tracks in parallel based on the sequence program during the karaoke performance. The sequence program counts the duration data Δt at a predetermined tempo clock, reads the event data that follows the count data, and outputs it to a predetermined processing unit.

  The musical tone track shown in FIG. 3 is formed with various part tracks including a melody track and a rhythm track. In the guide melody track shown in FIG. 4, the melody sequence data of the karaoke song, that is, the melody sequence data to be sung by the singer is written. The CPU 50 generates reference pitch data and volume data based on this data and compares it with the singing voice. In addition, when there are multiple singing parts like a duet song, there is a guide melody track (reference) corresponding to each singing part, or each singing part is divided within the same track. Based on these, singing ability scoring of each singing part is performed.

  The lyrics track is a track that stores sequence data for displaying lyrics on the screen of the monitor device 59. Although this sequence data is not musical sound data, this track is described as MIDI data and the type of data is a system exclusive message in order to facilitate the work process by unifying implementation.

  This lyrics track normally handles one line of lyrics displayed on the screen of the monitor device 59 as one lyrics display data. The lyric display data is composed of lyric character data (character code and display coordinates of the character) of one line, display time, and wipe sequence data. This wipe sequence data is sequence data for changing the display color of the lyrics as the song progresses. The timing for changing the display color (time after the lyrics are displayed) and the change position (coordinates) Is data recorded sequentially over the length of one line.

  The audio track is a sequence track that specifies the generation timing of audio data n (n = 1, 2, 3,...) Stored in the audio data portion. In the audio track, audio designation data and duration data Δt for designating the read interval of the audio designation data, that is, the timing at which the audio data is output to the audio data processing unit 60 to form the audio signal are written. The voice designation data includes a voice data number, pitch data, and volume data, and the voice data number is an identification number n of each voice data recorded in the voice data section.

  The pitch data and the volume data are data for instructing the pitch and volume of the audio data to be formed. In other words, the back chorus without words can be used universally by changing the pitch and volume, so one basic pitch and volume are stored, and the pitch and volume are shifted based on this data. Use repeatedly. The audio data processing unit 60 sets the output level based on the volume data, and sets the pitch of the audio signal by changing the read interval of the audio data based on the pitch data.

  Here, the contents of the memory map of the RAM 52 will be described with reference to FIG. As shown in the figure, in addition to a MIDI buffer 520 for temporarily storing a guide melody, a reference data register 321 for storing reference data extracted from the guide melody, and a difference obtained by comparing the reference and the singing voice A difference data storage area 522 for storing and storing data, a point storage area 523 for storing points obtained by comparing the difference data with singing skill data, and an execution data storage area 524 for storing music data for karaoke performance A program storage area 525 for storing the loaded system program and application program is set. The reference data register 321 includes a pitch data register 521a and a volume data register 521b. The difference data storage area 522 includes a pitch difference data storage area 522a, a volume difference data storage area 522b, and a rhythm difference data storage area 522c. Consists of.

  Next, the communication control unit 53 downloads music data and the like from the host station via the information communication network, and writes the music data received by the built-in DMA controller directly to the HDD 54 without using the CPU. The remote control receiver 55 receives the infrared code signal sent from the remote control transmitter 61 and restores the input data. The remote control transmitter 61 includes a command switch such as a music selection switch, a numeric keypad switch, and the like. When a user operates these switches, the remote control transmitter 61 transmits an infrared code signal modulated with a code corresponding to the operation.

  The tone generator 56 forms a tone signal based on the tone track data of the music data. The music data is read by the CPU 50 during karaoke performance, and a guide melody track, which is comparison data, is read in parallel with the musical sound track. As shown in FIG. 3, the tone track is composed of a plurality of tracks, and the tone generator 56 forms a plurality of part tone signals simultaneously based on this data.

  The audio data processing unit 60 forms an audio signal having a specified length and a specified pitch based on the audio data included in the music data. Voice signals formed by the voice data processing unit 60 and the sound source device 56 become karaoke performance sounds. The karaoke performance sound is converted into an analog signal by the D / A converter 62, and then output to the sound device 63 and produced by the speaker system 64.

  Singing voice signals input from the singing karaoke microphones 65a and 65b are amplified by the preamplifiers 66a and 66b, and then input to the acoustic device 63 and the A / D converters 67a and 67b. The singing voice signal input to the audio device 63 is amplified and sounded from the speaker system 64, and the A / D converters 67a and 67b digitize and input the input singing voice signal.

  The character display unit 57 reads out font data based on the input character code, generates a character pattern such as a song title and lyrics, and outputs the character pattern to the display control unit 58. Further, the HDD 54 reproduces the corresponding background video based on the input video selection data (chapter number) and outputs it to the display control unit 58. The video selection data is determined based on the genre data of the selected karaoke song. This genre data is written in the header of the song data and is read out by the CPU 50 at the start of the karaoke performance.

  The CPU 50 selects a background video to be reproduced based on the genre data, selects a background video from the HDD 54 by video selection data for designating the background video, and outputs it as video data. The video data and font data such as lyrics output from the character display unit 57 are superimposed on the display control unit 58, and the composite image is displayed on the screen of the monitor device 59.

  Next, the singing ability scoring unit 68 evaluates the singing ability of the singer, and includes hardware such as a CPU 50 and scoring software. FIG. 6 specifically shows the configuration of the singing ability scoring unit 68. The singing voice signal converted into a digital signal from the A / D converters 67a and 67b is output to the data extracting units 680a and 680b. To do. The data extraction units 680a and 680b extract pitch data and volume data every 50 ms from the digitized singing voice signal, and output them to the difference calculation units 681a and 681b.

  The difference calculation sections 681a and 681b are pitch data and volume data (hereinafter referred to as singing voice data) extracted from each singing voice signal, and the pitch data and volume data of the guide melody output from the reference substitution section 683. (Hereinafter referred to as “reference data”), the difference from the reference data is calculated every 50 ms in accordance with the timing at which the singing voice data is input, and output as real-time difference data (pitch difference data, volume difference data). Is done. Further, the difference calculation units 681a and 681b detect a difference between the rising timing of the volume of the singing voice data and the rising timing of the volume of the reference data, and output this as rhythm difference data.

  The detected pitch difference data, volume difference data, and rhythm difference data are input to the scoring units 682a and 682b. The scoring units 682a and 682b collect and store these difference data for each of the scoring section units set for each piece of music including the duo music related to the present invention, and the singing technique to which these difference data is input. Compare with the data. Since this singing skill data is data for giving a subtle change to the operation of the sound source device 56 so as not to become monotonous and giving musical expression, it shows a deviation between the reference data and the singing voice data. If the difference data, which is data, approximates this singing skill data, it is determined that a singing suitable for the song is made, and the similarity is quantified as an addition point. It is obtained for each music element of the addition point, pitch, volume, and rhythm, and is totaled and stored for each scoring section.

  Next, an outline of such processing will be described with reference to the flowcharts shown in FIGS. FIG. 7 is a flowchart showing the data fetching process. In the case of a duet song, when each singing voice signal is input from two karaoke microphones 65a and 65b (step Sa1), each singing voice signal is A. The digital data is converted by the / D converters 67a and 67b (step Sa2). Each digital data is input to the data extraction units 680a and 680b, and the frequency is counted (step Sa3) and the average sound volume is calculated (step Sa4) in units of 50 ms frames. The frequency count value and the average volume value are read by the CPU 50 every 50 ms.

  FIG. 8 is a flowchart showing the music data input process. This process is executed when the event data of the guide melody track and the event data of the control track are transferred from the sequence program for executing the karaoke performance. First, the MIDI data passed from the sequence program is taken into the MIDI buffer 520 (step Sb1), and it is determined whether or not this data is section division data (step Sb2). If it is determined in the step that the data is divided into sections, the contents are stored in the section register (step Sb3), and the process returns. On the other hand, if the fetched data is reference data, this data is converted into pitch data and volume data (step Sb4).

  This is processing for converting note number and pitch bend data of note-on data in MIDI format into pitch data, and converting velocity data and after-touch (key pressure) data of note-on data into volume data. The reference data register 521 of the RAM 52 is updated with the pitch data and volume data thus converted (step Sb5). Therefore, the reference data register 521 is updated each time new guide melody data is input.

  If the reference data is stored as pitch data and volume data instead of MIDI data, it may be stored in the reference data register 521 without performing this conversion process. It is also possible to change the description format of pitch data and volume data to the MIDI format. In this case, these can be replaced by system exclusive messages (for example, note-on data, pitch bend data, channel key pressure data, etc.). Also good.

  FIG. 9 is a flowchart showing data conversion processing. This process is a process of taking in the frequency count value and the average volume value of the singing voice signal and converting them into pitch data and frequency data of the singing voice signal, and is executed every 50 ms which is one frame time of the singing voice signal. First, the CPU 50 reads the average sound volume value (step Sc1) and determines whether or not the value is equal to or greater than a threshold value (SH) (step Sc2). At this time, if it is equal to or greater than the threshold value, volume data is generated based on the average volume value (step Sc3). Next, the frequency count value is read (step Sc4), pitch data is generated based on the frequency count value (step Sc5), and the process proceeds to the comparison process. If it is determined in step Sc2 that the average volume value is less than the threshold value, volume 0 data is generated assuming that the singer is not singing (speaking) (step Sc6), and pitch data is not generated. Proceed to the comparison process. The data conversion process as described above is performed for each singing voice input from the karaoke microphones 65a and 65b.

  Next, the comparison process will be described based on the flowchart shown in FIG. This comparison process compares the pitch data and volume data of the singing voice generated by the data conversion process of FIG. 8 with the reference pitch data and volume data obtained by the reference input process of FIG. This is a required process, and is executed every 50 ms in synchronization with the data conversion process. In this comparison process, first, it is determined whether both the reference volume data and the singing voice volume data are equal to or higher than a threshold (sounding) (step Sd1). Here, since the comparison process becomes meaningless unless both are sounding, the process proceeds to the process after step Sd16. On the other hand, if both are sounding, it is determined whether or not the sounding flag is set (step). Sd2).

  The sound generation flag is a flag that is set in step Sd3 when both the reference and the singing voice rise (when sound is being generated). Accordingly, since the sound generation flag is still set at the beginning of the rise, the process proceeds from step Sd2 to step Sd3, and the sound generation flag is set in step Sd3. Then, the difference between the rising timings of the reference and the singing voice is calculated (step Sd4), and this is stored as rhythm difference data in the storage area corresponding to the current section in the rhythm difference data storage area 522c (step Sd5). Note that the current section can be determined by the section register set in step Sb3 shown in FIG.

  Next, the rhythm difference data is compared with singing skill data (step Sd6), and the degree of coincidence is added and stored in a storage area corresponding to the current section in the point storage area 523 (step Sd7). Here, note-on event data of a musical tone track can be used as singing skill data representing the timing difference. That is, it can be considered that the exact beat timing difference of the note-on event data represents the skill for playing the music skillfully. Note that after the processing in step Sd7, the process proceeds to step Sd8. If the sound generation flag is already set and the sound generation flag is set, the process proceeds directly to step Sd8 after the determination in step Sd2.

  In step Sd8 and subsequent steps, the difference between the singing voice and the reference volume data is calculated (step Sd8), and this difference is set as volume difference data in the storage area corresponding to the current section in the volume difference data storage area 522b. Store (step Sd9). Then, the volume difference data is compared with the singing skill data to determine the degree of matching, that is, whether or not the singing has skill (step Sd10), and the degree of matching is set as an addition point to the point storage area 523. Is stored in the storage area corresponding to the current section (step Sd11).

  Next, the difference between the singing voice and the reference pitch data is calculated (step Sd12), and this difference is used as pitch difference data, and the storage area corresponding to the current interval in the pitch difference data storage area 522a. (Step Sd13). Then, the pitch difference data is compared with the singing skill data to determine the degree of coincidence (step Sd14). Then, the degree of coincidence is accumulated and stored in the point storage area 523 as a pitch point (step Sd15).

  On the other hand, if it is not determined in step Sd1 that both are sounding, the process proceeds to step Sd16, where it is determined whether both the reference and the singing voice are muted. If it is determined in step Sd16 that both of them are muted, the sound generation flag is reset as a muting period (step Sd17), and the process returns. Moreover, when both of them are not muted, it returns as it is because the singing timing is shifted. With the above processing. Difference data and points for every three elements can be obtained for each of the three sections.

  Next, an example of the scoring process will be described with reference to FIG. This process is performed after the end of the music. First, when the performance of the music ends, the volume difference data of each part accumulated and stored during the performance is totaled (step Se1), and a deduction point value is calculated. (Step Se2). Then, the deduction point value is subtracted from the perfect score (100 points) to calculate the volume score (step Se3). Similarly, the pitch difference data and the rhythm difference data are totaled to calculate a subtraction value, and the pitch and rhythm scores are calculated (steps Se4 to Se9). Then, an average score is calculated by averaging the scores of these three music elements (step Se10), and character information representing this is displayed on the screen of the monitor device 59 (step Se11).

  The above is the normal processing flow of singing ability scoring. In the case of a duet song, the singing ability is scored for each singing part of each individual singer, but one singer assists the other singer. The assist evaluation process will be described below. As a premise of such processing, it is judged that the singing ability in the singing part that each singer should sing falls below the set standard, and the other singer is instructed to sing by assisting one singer. There must be. The reference can be made based on each difference data generated in real time or a result of singing ability scoring. In addition, when the singing ability of one singer decreases and the other singer performs assist, the reference data of one singer is replaced with the reference data of the other singer so that the reference data is replaced. There must be.

  FIG. 12 specifically shows the configuration of the reference replacement unit 683 for performing the above processing. The reference replacement unit 683 includes reference data buffers 683a, 683b, 683c, and 683d so that reference data R1 / R2 for each singer can be set. The reference data buffers 683a, 683b, 683c, and 683d are connected to the bus BUS so that the reference data R1 / R2 of each singer can be input, and a selection signal S1. Reference data R1 / R2 selected based on S2, S3, and S4 is input.

  FIG. 13 shows a state in which the reference data R1 / R2 is replaced by the processing of the reference replacement unit 683. In the example shown in the figure, reference data R1 is assigned to the singing part of singer A who sings a duet song, and reference data R2 is assigned to singer B. In such a state, the performance of this music is continued and becomes the singing part of the singer B from the time t1, and when the singing power of the singer B falls below the set standard at the time t2, the CPU 50 assists this. The monitor device 59 or the like notifies the assist request by determining that the state is necessary.

  At the same time, the CPU 50 outputs the reference data R2 to the reference data buffer 683b of the reference replacement unit 683 at time t2, and the difference calculation unit 681a can extract the difference data of the singing voice data input from the karaoke microphone 65a of the singer A. The scoring of the singing ability of the singer A started from the time T2 is started in the scoring unit 682a. At this time, since the singing part is still in the range to be sung by the singer B, the reference data R2 is set in the reference data buffer 683d.

  Thus, the assistance by the singer A proceeds, and the singer B who has received the assistance recovers the singing ability at the time t3 by the assistance, and when the singing is resumed, the reference data R2 set in the reference data buffer 683b And the assist by singing by the singer A is finished. And singer B sings the remaining part of the singing part in charge until time t4.

  As described above, the result of the singing power assisted by the singer A at the times t2 to t3 is input from the scoring unit 682a to the assist evaluation unit 69. The assist evaluation unit 69 outputs a scoring result based on the scoring value of the part sung by the singer A to the bus BUS, and expresses the superiority or inferiority of the assist on the monitor device 59. In addition, when the assistance of the singer A is a plurality of times, the scoring values are averaged to determine the superiority or inferiority of the assist. In addition, as an element for determining the superiority or inferiority of the assist, the time until the singing ability of the singer B recovers, that is, the effect of the assist becomes more effective as the time from the time t2 to the time t3 is shorter. May be.

  In addition, in the example shown in FIG. 13, it becomes a singing part of singer A from time t4, the singing ability of this singer A becomes below the standard set at time t5, and reference data R1 is stored in the difference calculation unit 681b of singer B. Indicates the set state. In this case as well, singer B starts assisting from time t5 in the same manner as described above, and the singing ability of singer A recovers at time t6, and the remaining part of the singing part in charge of singer B is sung until time t7. Indicates the state. Therefore, difference data is extracted in the difference calculation unit 681b from the singing voice data input from the karaoke microphone 65b at the time t5 to t6 when the singer B assists, and is output to the assist evaluation unit 69. Executed.

It is a block diagram which shows the structure of the karaoke apparatus of this invention. It is a figure which shows the format of music data. It is a figure which shows the content of the track of music data. It is a figure which shows the content of the track of music data. It is a figure which shows the content of a memory map. It is a block diagram which shows the structure of a singing ability scoring part. It is a flowchart which shows the taking-in process of data. It is a flowchart which shows the input process of music data. It is a flowchart which shows a data conversion process. It is a flowchart which shows a comparison process. It is a flowchart which shows an example of a scoring process. It is a block diagram which shows the structure of a reference replacement part. It is a figure explaining the function of this invention.

Explanation of symbols

50 .... CPU (Central Processing Unit)
51 ... ROM
52 .... RAM
53 ... Communication control unit 54 ... HDD (Hard disk drive)
55... Remote control receiver 56... Sound source device 57... Character display 58... Display control unit 59. ...... Voice data processing unit 61 ... Remote control transmitter 62 ... D / A converter 63 ... Sound device 64 ... Speaker system 65a ... Karaoke microphone 65b ... Karaoke microphone 67a ... A / D converter 67b ... A / D converter 68 ... Singing ability scoring part 680a- ... Data extraction unit 680b ... Data extraction unit 681a ... Difference calculation unit 681b ... Difference calculation unit 682a ... Scoring unit 682b ... Scoring unit 683 ... Reference replacement part 69 ・ ・ ・ ・ ・ ・ Assist evaluation part

Claims (3)

Each singer has a double-song for sharing the singing part, and each double-song has a plurality of scoring sections. Singing ability scoring means, reference replacement means, and assist evaluation Means,
(A) Singing power scoring means calculates a scoring value for each scoring section of each singing part based on a preset reference for each karaoke microphone corresponding to each singing part in the double-song music,
(A) In the case where the calculated scoring value falls below a preset reference value in a predetermined number of consecutive scoring sections in one singing part, the reference replacement means is a karaoke microphone of the other singing part Is replaced with the reference set in the karaoke microphone of the one singing part, and is calculated in a predetermined number of consecutive scoring intervals corresponding to the singing part of the one singer. When the scoring value exceeds the reference value, or when the music performance is switched to the singing part including the singing part of the other singer, the reference of the replaced karaoke microphone is set as the set reference. Return,
(C) During the replacement of the reference, the assist evaluation means is configured such that the reference value exceeds the reference value from the time when the score value and / or the reference value of the scoring section where the other singer sang the one singing part falls. The time to the point in time
A karaoke apparatus characterized by that. (D) During the replacement of the reference, the assist evaluation means determines that the reference value is determined from the average score value for the singing of each scoring section in the one singing part by the other singer, and from the time when the reference value falls below. In addition to the time until the time when it exceeds, the time from the time when the reference value falls to the time when the other singer starts singing the one singing part is evaluated as a determination factor.
The karaoke apparatus according to claim 1. In addition to the singing ability scoring means, the reference replacement means, and the assist evaluation means, further comprising an assist notification means,
(E) The assist notification means notifies the singer of an assist request with a screen display and / or audio output when the reference value falls below.
3. The karaoke apparatus according to claim 1, wherein the karaoke apparatus is a karaoke apparatus.

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