JP6514874B2 - Karaoke scoring device that compares the pitch difference of the reference with the pitch difference of the singing voice and performs scoring - Google Patents

Description

  The present invention relates to a karaoke scoring device for scoring the skill of a karaoke song by a user, and more particularly to a device that compares the pitch difference of a reference with the pitch difference of a singing voice to perform scoring.

  The karaoke apparatus is provided with a scoring function for scoring the user's singing skill. Particularly in recent years, it is desirable that the auditory impression felt by the person who listens to the user's song and the gap between the scoring results be small, and the scoring function has been improved and developed in response to this. As a technique for appropriately scoring the skill of such a song, for example, Patent Document 1 compares the low-pass filtered reference data with the singing voice frequency data for each note, and refers to the reference data within a single note period. This technique determines the final score on the basis of the number of notes that are determined to pass for this note when the difference between the song and the singing voice frequency data is within the allowable range for a predetermined number of times or more. Is disclosed. Further, in Patent Document 2, the reference data of the predetermined section and the singing voice frequency data are mutually shifted in the time axis direction, the position where the correlation becomes maximum is determined, and the frequencies are compared by comparing each note at that position. A technique is disclosed that can accurately determine even singing by "for" by scoring based on differences.

JP, 2005-107328, A JP 2005-107330 A

  By the way, in recent years, so-called one-man karaoke in which one person concentrates on singing into a karaoke box is popular. One of the purposes of using one-person karaoke is to increase the repertoire of music. In order to achieve this purpose, one song will be sung repeatedly, but in the process, there is a demand to check how much melody can be learned rather than the accuracy of the pitch.

  In addition, some users of karaoke can sing the main melody correctly with so-called acapella, but can not sing along with the keys while listening to the accompaniment, and users of such characteristics are also able to sing. As with general users, a scoring function to evaluate pitch accuracy is desired. However, in the conventional scoring process starting with each of the patent documents described above, it is determined whether or not the song is sung at the reference pitch. Therefore, no matter how much the main melody is sung correctly, the evaluation will be lowered if the key is shifted.

  Here, the technique of Patent Document 2 is applied to shift the reference data of the predetermined section and the singing voice frequency data mutually not in the time axis direction but in the pitch direction, and find out the position where the correlation becomes maximum. It is also conceivable to score by comparing each note at. However, since the absolute pitch of the user (reference of pitch) tends to change frequently in time series, the pitch before and after the pitch change is accurate when the pitch change occurs in a predetermined section However, the correct evaluation can not be obtained.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a marking method suitable for a user who uses karaoke alone or a user who can not be matched to an accompaniment key.

  In order to achieve the above-mentioned object, a karaoke scoring apparatus according to the present invention is a performance means for acquiring reference data including pitch information and break information of each note in the song melody in synchronization with the performance of the karaoke music. A singing voice input unit for inputting a singing voice, a recording unit for recording the pitch of the singing voice for each note identified by the delimiter information, and a pitch of two consecutive musical notes included in the reference data It is characterized by comprising: a first scoring unit that performs scoring by comparing a difference and a difference in pitch difference between two notes included in the recorded singing voice corresponding to the two notes.

  According to the present invention, the first scoring means comprises the difference in pitch between two consecutive notes contained in the reference data and the difference in pitch between the two notes contained in the singing voice corresponding to these two notes. Because the scoring is done by comparing the, the accuracy of the pitch of each note can be evaluated. In addition, even when a change in absolute pitch occurs in a predetermined section, a relatively high evaluation can be obtained if the pitch before and after the change in pitch is accurate. As a result, it is possible to perform marking suitable for a user who uses karaoke alone or a user who can not match the accompaniment key.

  In the above-mentioned karaoke scoring apparatus, the pitch recorded in the recording means is a pitch in a predetermined period among a plurality of sample pitches of the singing voice inputted within the period of one note identified by the division information. When a horizontal point whose high fluctuation is less than a predetermined range is detected, the average value of the horizontal point is taken as the pitch of this note, and when the horizontal point is not detected, all samples detected during the sound generation period It is preferable to set the average value of the pitch as the pitch of the note. In this karaoke scoring device, a proper pitch can be set even if the pitch of the singing voice is not determined in each note.

  In the above-described karaoke scoring apparatus, the reference data and the singing voice are compared for each note identified by the delimiter information and login means for logging the user into the karaoke scoring apparatus to be used, and the pitch thereof The second marking device is provided with a second marking device for marking according to the difference, and when the user logged in by the login device is one, the first marking device is scored, and in the other cases, the second marking device is scored. It is preferable to do. The karaoke scoring device can automatically select an appropriate marking week according to the number of logged-in users. That is, for a user who uses karaoke alone, the accuracy of the pitch of each note can be evaluated, and for a user who uses karaoke by multiple people, the evaluation of a song based on the listener's hearing is evaluated be able to.

  According to the present invention, a user who uses karaoke alone or a user who can not match the accompaniment keys adopts a scoring function that evaluates the accuracy of the pitch of each note, regardless of the accompaniment keys. It can be determined whether the song is singing with the correct melody in the song.

It is a block diagram explaining the structure of a karaoke apparatus. (A) is a block diagram explaining the structure of the karaoke main body. (B) is a figure explaining the partial area of the memory which a control part has. It is a flowchart explaining a 1st scoring process. It is a figure explaining the sample pitch of singing voice. (A) is a figure explaining the sample tone from which the horizontal part was detected. (B) is a figure explaining the sample sound pitch in which the horizontal part was not detected. (A) is a figure explaining the pitch difference of the two continuous notes contained in reference data. (B) is a figure explaining the pitch difference of the two continuous notes contained in singing voice. FIG. 7 is a diagram for describing specific examples of pitches and pitch differences for each note in reference data and singing voice. It is a flowchart explaining the process from login of a user to leaving.

  Hereinafter, embodiments of the present invention will be described. First, the configuration of the karaoke apparatus 1 will be described with reference to FIG. The karaoke apparatus 1 has a karaoke scoring function for scoring the skill of karaoke singing by the user. For this reason, the karaoke apparatus 1 of this embodiment is corresponded to the karaoke scoring apparatus which concerns on this invention.

  As shown in FIG. 1, the karaoke apparatus 1 has a karaoke body 11, a speaker 12, a monitor 13, a singing microphone 14, and a remote control device 15.

  The karaoke body 11 controls various performance related to karaoke singing such as performance control of karaoke music designated by the user, display control of lyrics and background image, processing of microphone signal generated by the singing microphone 14, scoring of karaoke singing, etc. It is the part to do. The speaker 12, the monitor 13, the singing microphone 14, and the remote control device 15 are connected to the karaoke body 11 by wire or wirelessly. Further, the karaoke body 11 is connected to the transmission path 2 via the router device RT. The karaoke body 11 can communicate with a host device (not shown) through the transmission path 2. Through communication with the host device, the karaoke body 11 can perform, for example, downloading of music data and login (authentication) of the user. The karaoke body 11 will be described in detail later.

  The speaker 12 outputs a sound based on the sound emission signal output from the karaoke body 11. For example, it outputs a mixed sound in which a singing voice and a karaoke performance sound are mixed. The monitor 13 displays an image on the screen based on the image signal from the karaoke body 11. For example, the lyrics or background image of the singing karaoke song is displayed. The singing microphone 14 picks up the singing voice of the user (song), converts it into a microphone signal, and inputs it to the karaoke body 11 (for details, see the sound processing unit 25 described later, see FIG. 2A). For this reason, the set of the singing microphone 14 and the karaoke body 11 corresponds to singing voice input means for inputting the singing voice of the user.

  The remote control device 15 includes a short distance wireless communication unit capable of bi-directional communication for transmitting and receiving information to and from the karaoke body 11, and is operated, for example, when a karaoke song is reserved. At the time of reserving karaoke music, the remote control device 15 transmits an operation signal including a music ID for identifying a music to be played. Then, the karaoke body 11 manages the selected karaoke music in a queue.

  The remote control device 15 is also configured to be communicable with the router device RT, and is also operated when the user logs in. At the time of execution of the login process, the remote control device 15 transmits a user ID and a password for identifying the user. The user ID and password are transmitted to the host device via the transmission path 2. Therefore, the set of the remote control device 15 and the host device corresponds to the login means in the present invention. The user's login may be processed by the karaoke apparatus 1. In this case, a set of the karaoke body 11 and the remote control device 15 corresponds to the login means.

  Next, the karaoke body 11 will be described in detail. As shown in FIG. 2A, the karaoke body 11 includes a control unit 21, a communication unit 22, a storage unit 23, a sound source unit 24, an acoustic processing unit 25, a display processing unit 26, and an operation unit 27. And.

  The control unit 21 is a central part of control in the karaoke body 11. The communication unit 22 is a part that provides an interface for connecting the karaoke body 11 to the transmission path 2 via the router device RT. The storage unit 23 is a large-capacity storage device for storing various data, and is configured by a hard disk drive or the like. The sound source unit 24 is a part that generates a musical tone signal that is the basis of the karaoke performance sound signal. The sound processing unit 25 is a part that performs processing relating to karaoke performance sounds and singing voices. The display processing unit 26 is a part that performs display control of a background image and the like at the time of karaoke performance. The operation unit 27 is a portion that outputs an operation signal according to the operation of the panel switch or the remote control device 15. Then, these units are connected in a communicable state via the bus BS.

  Next, the control unit 21 will be described. The control unit 21 has a CPU 21 a and a memory 21 b. The CPU 21a executes various controls in accordance with the operation program stored in the memory 21b. For example, it performs operation input processing for receiving an operation from the operation unit 27 and sequencer processing that operates as a sequencer. Further, by reading and executing the grading program stored in the storage unit 23, the control unit 21 performs grading processing. Although details will be described later, in the present embodiment, in addition to the scoring process (second scoring process) in a general scoring mode for comparing the pitches of the reference data and the singing voice for each note constituting the song melody It is also possible to select a scoring process (first scoring process) according to another scoring mode that compares the pitch difference of the two notes between the reference data and the singing voice.

  The memory 21 b is a storage element that stores a program to be executed by the CPU 21 a and temporarily stores various information when the program is executed. The memory 21 b also stores karaoke music pieces reserved by the remote control device 15 in a queue. In addition to using a partial area of the memory 21b as a work area, as shown in FIG. 2B, a partial area of the memory 21b includes a reference pitch storage area 21c, a reference pitch difference storage area 21d, and singing It is used as a pitch storage area 21e, a singing pitch difference storage area 21f, a difference value storage area 21g, and a determination result storage area 21h. For convenience, the information stored in these areas will be described later.

  Next, the storage unit 23 will be described. The storage unit 23 is provided with a music data storage area 23 a in addition to the scoring program storage area 23 b in which the above-described scoring program is stored. In the music data storage area 23a, music data for playing a karaoke music is stored. The music data includes MIDI data, reference data and lyric data.

  The MIDI data is data for automatically playing the sound source of the electronic musical instrument, that is, performance data for karaoke, and is constituted by time-series MIDI events (messages) defined by delta time. The MIDI event includes, for example, note-on indicating the start of sound generation and note-off indicating the end of sound generation. These note-on and note-off include scale numbers indicating the pitch of the sound and velocities indicating the strength of the sound. The control unit 21 reads out and stores this MIDI data from the storage unit 23 and transmits a MIDI event to the sound source unit 24 at a timing defined by the delta time.

  The reference data is used when scoring a karaoke song by the user, and is pitch information representing the pitch of each note in the song melody in time series. This reference data is also MIDI format data. That is, it is composed of time-series MIDI events (messages) defined by delta time. Therefore, note-on and note-off constituting the reference data correspond to the delimitation information of each note in the singing melody. Also, the scale number corresponds to the pitch information of each note in the singing melody. The control unit 21 reads out and accumulates the reference data from the storage unit 23 and refers to each event at timing defined by the delta time while synchronizing with the MIDI data.

  The lyric data is character string data for displaying the lyric telop in the karaoke music on the monitor 13.

  Next, the sound source unit 24 and the sound processing unit 25 will be described. The sound source unit 24 is a part that generates a musical tone signal based on a MIDI event. The sound source unit 24 stores the waveform data of various sounds played by the target musical instrument in a readable manner. The above-described control unit 21 acquires MIDI data from the music data storage area 23a as sequencer processing, and transmits each of MIDI events included in the MIDI data to the sound source unit 24 at a predetermined timing. Then, the sound source unit 24 processes the waveform data in accordance with the received MIDI event, and generates a digital musical tone signal. The generated tone signal is output to the sound processing unit 25.

  The sound processing unit 25 performs processing of a tone signal and processing of a microphone signal (singing voice). For example, in performance control of a karaoke music, the sound processing unit 25 converts the musical tone signal output from the sound source unit 24 into an analog signal to generate a karaoke performance sound signal. In addition, when a microphone signal from the singing microphone 14 is input, the sound processing unit 25 appropriately adjusts an echo or the like to the microphone signal and mixes it with the karaoke performance sound signal. The signal after mixing is output to the speaker 12 as a sound emission signal. As a result, a mixed sound in which a singing voice and a karaoke performance sound are mixed is output from the speaker 12. As can be understood from the above description, a combination of the control unit 21, the storage unit 23, the sound source unit 24, the sound processing unit 25, and the speaker 12 corresponds to a performance means for playing karaoke music.

  Further, the sound processing unit 25 converts the microphone signal before adjustment into a digital signal to generate a singing signal. This singing signal includes time-series sample pitch groups sampled repeatedly, for example, in units of 10 to 30 ms. The sound processing unit 25 transmits the singing signal (sample pitch group) to the control unit 21. The control unit 21 determines the pitch of each note on the basis of the received singing signal, and records the pitch in the memory 21b (song pitch storage area 21e) as a recording unit. The determination of the pitch for each note will be described later.

  Next, the display processing unit 26 and the operation unit 27 will be described. The display processing unit 26 controls display of a background image and the like at the time of karaoke performance. During karaoke performance, the lyrics telop is displayed on the monitor 13. As sequencer processing of the control unit 21, the lyrics data is output from the storage unit 23 (music data storage area 23a) to the display processing unit 26, and the display color of the lyrics telop is in accordance with the color change instruction output in this sequencer processing. Be changed. As a result, the display color of the lyrics telop is changed on the monitor 13 in accordance with the progress of the karaoke music.

  The operation unit 27 includes a panel switch, a remote control reception circuit, and the like, and outputs an operation signal corresponding to the operation of the panel switch and the remote control device 15 to the control unit 21. The control unit 21 detects an operation signal by performing an operation input process, and executes a corresponding process. The panel switch and the remote control device 15 are provided with various switches (not shown) for selecting an operation.

  Here, the first scoring process, which is a feature of the present embodiment, will be described. In addition to the first scoring process, each area provided in the memory 21b will also be described. As described above, in this first scoring process, the skill of the singing is scored by comparing the pitch difference between two consecutive notes between the reference data and the singing voice.

  FIG. 3 is a flowchart illustrating the first scoring process. In the first scoring process, the control unit 21, the sound source unit 24, and the sound processing unit 25 mainly operate. Therefore, the operation of each part will be described. And the control part 21 functions as a 1st scoring means at the time of execution of this 1st scoring process.

  The sound processing unit 25 converts a microphone signal (represented as MIC in FIG. 3) input from the singing microphone 14 into a digital signal to generate a singing signal, and outputs the singing signal to the control unit 21 (S41). As shown in FIG. 4, this singing signal includes a time-series sample pitch group SP sampled repeatedly with a predetermined sampling period as a unit. In addition, one short line forming the sample pitch group SP indicates one sample pitch sp.

  The control unit 21 performs a process of capturing the singing signal transmitted from the sound processing unit 25 (S11). The acquired singing signal is recorded, for example, in the work area of the memory 21b. Further, the control unit 21 functions as a reading means, and MIDI data (play data, represented as MIDI in FIG. 3) and reference data (denoted as REF in FIG. 3) of the karaoke music to be played are stored in the storage unit 23. It is acquired from the data storage area 23a (S12), and sequencer processing based on MIDI data is performed. Also, the control unit 21 references the reference data in synchronization with the MIDI data.

  That is, the control unit 21 transmits each of the MIDI events to the sound source unit 24 at a predetermined timing (Y in S13) based on the acquired MIDI data (S14). The sound source unit 24 acquires a MIDI event, generates a tone signal at the acquired note-on timing, and transmits it to the sound processing unit 25 (S31). Further, the sound processing unit 25 generates a karaoke performance sound signal by converting the musical tone signal output from the sound source unit 24 into an analog signal, mixes it with the microphone signal, and generates a sound emission signal (shown as sound emission in FIG. It outputs (S42). Thereby, the mixed sound of singing voice and karaoke performance sound is output from the speaker 12.

  Further, the control unit 21 determines whether or not the reference data being referred to is note-on (S15), and in the case of note-on, acquires the scale number (S16). Then, the control unit 21 recognizes the pitch (cent value) based on the acquired scale number, and stores the pitch in the reference pitch storage area 21c of the memory 21b in time series.

  The control unit 21 also determines whether or not the reference data being referred to is note-off (S17). If the note-off is in effect, the singing voice is determined to have ended the period of one note. The pitch of the sound is determined (S18). The determination of the pitch is made by a plurality of sample pitches sp of the singing signal input within the period of the previous note off to the current note off. Specifically, this is done by a plurality of sample pitches sp of the singing signal input within the sounding period of one note identified by the note-off (division information) delta time.

  For example, as in the sample pitch group SP1 shown in FIG. 5A, the control unit 21 sets the variation range of the sample pitch sp to a predetermined range over the predetermined period T1 in the sound generation period T corresponding to one note. When a horizontal portion X less than S1 is detected, the average value AV1 of the horizontal portion X is set as the pitch (cent value) of this note. Further, as in the case of the sample pitch group SP2 shown in FIG. 5B, the control unit 21 detects all sample pitches detected in the sound generation period T when the horizontal portion satisfying the above-mentioned condition is not detected. The average value AV2 of sp is taken as the pitch (cent value) of the note. In addition, although it is set as 40% of length of the period prescribed | regulated by the note regarding predetermined period T1, for example, what is necessary is just to set to arbitrary ratios. The predetermined range S1 can also be set to any pitch difference according to the determination accuracy. The pitch of the note unit determined in this manner is output to the control unit 21 and stored as the pitch of the singing voice in the singing voice pitch storage area 21e.

  If the pitch corresponding to one note is determined for the singing voice and stored in the singing voice pitch storage area 21e, the control unit 21 performs a pass / fail determination (S19). The determination of success or failure is performed by comparison of the pitch difference between two consecutive notes included in the reference data and the difference between the pitch differences of the two notes included in the singing voice corresponding to these two notes. For this reason, the pass / fail determination is performed after the pitch determination of the second and subsequent notes.

  For example, as shown in FIGS. 6A and 6B, the control unit 21 subtracts the pitch of the first note from the pitch of the second note of the reference data immediately after the determination of the second pitch is finished. To obtain the reference pitch difference dC 1-1. Similarly, the pitch of the first note is subtracted from the pitch of the second note of the singing voice to obtain the pitch difference dC2-1 of the singing voice. Then, the pitch difference dC 1-1 is stored in the reference pitch difference storage area 21 d of the storage unit 23. Similarly, the pitch difference dC2-1 is stored in the singing voice difference storage area 21f of the storage unit 23. Next, the control unit 21 calculates the absolute value (difference value) of the difference between the reference pitch difference dC1-1 and the singing voice pitch difference dC2-1, and the calculated difference value is used as the difference value of the storage unit 23. It stores in the storage area 21g.

  Further, immediately after the determination of the third note, the control unit 21 subtracts the second note from the third note of the reference data to obtain the reference difference dC1-2 of the reference. . Similarly, the pitch of the second note is subtracted from the pitch of the third note of the singing voice to acquire the pitch difference dC2-2 of the singing voice. After storing these pitch differences dC1-2 and dC2-2 in the predetermined storage areas 21d and 21f, the control unit 21 converts the reference pitch difference dC1-2 and the singing voice pitch difference dC2-2 from each other. The difference value is calculated and stored in the storage area 21g described above. The processes after the fourth note are the same, so the description will be omitted.

  Once the difference value is stored, the control unit 21 compares the difference value with the determination value to determine pass / fail for the pitch difference. That is, if the difference value is within the predetermined value, it is determined that the correct pitch is sung. For example, when the determination value is set to 100 cents, if the difference value is within 100 cents, the pitch difference is judged to be acceptable, and if the difference value exceeds 100 cents, the pitch difference is judged to be disqualified. Then, the control unit 21 stores the determination result in the determination result storage area 21 h of the storage unit 23. In this example, although the absolute value is used for the difference value and the determination value, it may be a range value from plus to minus, such as ± 100 cents, without using the absolute value.

  Here, with reference to the specific example of FIG. 7, the pass / fail determination of S19 will be described in more detail. In this example, the first note is 4800 cents (C4), the second note is 5000 cents (D4), the third note is 5200 cents (E4), and the fourth note is 5300 with respect to the reference pitch (Ref pitch). The fifth note is 5200 cents (E4), the sixth note is 5000 cents (D4), and the seventh note is 4800 cents (C4). The first note is 5021 cents, the second note is 5218 cents, the third note is 5408 cents, the fourth note is 5678 cents, the fifth note is 5588 cents, 6 The note number is 5372 cents, and the seventh note is 5183 cents.

  In this case, the first reference pitch difference dC1-1 is calculated to be +200 cents at 5000 cents (second note)-4800 cents (first note). The second reference pitch difference dC1-2 is calculated at 5200 cents (third note) -5000 cents (second note) to +200 cents. Likewise, the pitch difference dC1-3 is +100 cents, the pitch difference dC1-4 is -100 cents, the pitch difference dC1-5 is -200 cents, and the pitch difference dC1-6 is -200 cents.

  On the other hand, the first song pitch difference dC2-1 is calculated at 5218 cents (second note)-5021 cents (first note) and is +197 cents. The second song pitch difference dC2-2 is calculated at 5408 cents (third note)-5218 cents (second note) and reaches +190 cents. Likewise, the pitch difference dC2-3 is +240 cents, the pitch difference dC2-4 is -90 cents, the pitch difference dC2-5 is -216 cents, and the pitch difference dC2-4 is -189 cents.

  Further, the first difference value is calculated at | 200 cents to 197 cents and becomes 3 cents, and the second difference value is calculated at | 200 cents-190 cents | and is 10 cents. Similarly, the third difference value is 140 cents, the fourth difference value is 10 cents, the fifth difference value is 16 cents, and the sixth difference value is 11 cents. Therefore, in this specific example, the pitch difference at the time of transition from the third note to the fourth note is determined to be a rejection, and the other pitch differences are determined to be a pass. That is, 5 out of 6 pitch differences pass.

  In general scoring processing, the pitch information of the singing signal for the same note and the pitch information of the reference data are sequentially compared in time series. If applied to the above specific example, the pitch difference of the first note is calculated at 5021 cents-4800 cents and becomes +221 cents. The pitch difference of the second note is calculated at 5218 cents-5000 cents and becomes +218 cents. Similarly, the third note's pitch difference is +208 cents, the fourth note's pitch difference is +378 cents, the fifth note's pitch difference is +388 cents, the sixth note's pitch difference is +372 cents, and seven notes The pitch difference between the eyes is +383 cents. Since the pitch difference of any note exceeds +200 cents, the result is worse than the first scoring process.

  Returning to FIG. 3, when the pass / fail determination in S19 is completed, the control unit 21 repeatedly performs the above processing until the music ends (N in S17, N in S20), and when the music ends (Y in S20) , The monitor 13 grade | etc., Announces the scoring result of the whole karaoke music (S21). The overall scoring result is obtained by referring to the determination result for each note stored in the determination result storage area 21 h and by the ratio of the result.

  The first scoring mode described above is suitable for the case where one user who sings karaoke alone or a user who can not match the accompaniment keys sing alone. In other words, it is preferable not to select when one karaoke apparatus 1 is used by a plurality of people. Therefore, in the present embodiment, the first scoring mode is selected when there is only one user who has logged in to one karaoke apparatus 1, and the normal scoring mode is used when there are a plurality of logged in users. The second scoring mode is selected. FIG. 8 is a flow chart for explaining the processing from login of the user to logout in the karaoke apparatus 1.

  As shown in the figure, in the karaoke apparatus 1, a login process (S51) of the user is performed first. In this login process, the user operates the remote control device 15. By this operation, the remote control device 15 transmits a user ID and a password for identifying the user. These user ID and password are sent to the host device, and user authentication processing is performed. When there are a plurality of users, the login process of S41 is repeatedly performed (N in S52). Then, when login of all the users is completed (Y in S52), the control unit 21 determines whether the number of users is singular (S53).

  When the user is single, the control unit 21 sets the first scoring mode as the scoring mode (S54). As described above, in the first scoring mode, the pitch difference between two consecutive notes included in the reference data and the pitch difference between the two notes included in the recorded singing voice corresponding to the two notes. It is a mode to score by comparison of the difference of. On the other hand, when there are a plurality of users, the control unit 21 sets the second scoring mode as the scoring mode (S55). The second scoring mode is a mode in which the pitch of the reference data is compared with the pitch of the singing voice for each note of the singing melody contained in the reference data, and the scoring is performed based on the pitch difference.

  When the scoring mode is set as described above, the control unit 21 performs a scoring process each time a karaoke performance is performed (S56). That is, when the first scoring mode is set, the control unit 21 functions as a first scoring unit, and performs scoring based on the difference between the pitch difference in the reference data and the pitch difference in the singing voice. On the other hand, when the second scoring mode is set, the control unit 21 functions as a second scoring unit, and performs scoring based on the difference in pitch between the reference data and the singing voice. This scoring process is continuously performed until the user logs out when leaving the karaoke room (S57).

  As described above, according to the karaoke apparatus 1 of the present embodiment, when the first scoring mode is set, the control unit 21 determines the pitch difference between two consecutive musical notes included in the reference data, and Since the scoring is performed by comparing the difference between the pitch differences of the two notes included in the singing voice corresponding to the two notes, the accuracy of the pitch of each note can be evaluated. As a result, it is possible to perform marking suitable for a user who uses karaoke alone or a user who can not match the accompaniment key. In addition, even when a change in absolute pitch occurs in a predetermined section, a relatively high evaluation can be obtained if the pitch before and after the change in pitch is accurate.

  The control unit 21 performs the scoring process in the first scoring mode when the logged-in user is one, and performs the scoring process in the second scoring mode when the logged-in users are plural. Thereby, it is possible to automatically select an appropriate marking process according to the number of logged-in users. That is, for a user who uses karaoke alone, the accuracy of the pitch of each note can be evaluated, and for a user who uses karaoke by multiple people, the evaluation of a song based on the listener's hearing is evaluated be able to.

  In addition, the control unit 21 relates to the pitches for each note to be stored in the singing voice pitch storage area 21e of the storage unit 23, the song input within the period of one note identified by note-on or note-off (division information). When horizontal position X whose pitch fluctuation in predetermined period T1 is less than predetermined range S1 is detected among a plurality of sample pitches sp of voice, the average value of horizontal position X is taken as the pitch of this note, and the horizontal position If X is not detected, the average value of all sample pitches sp detected during the sound generation period T is taken as the pitch of the note. Thereby, even if the pitch of the singing voice is not determined in each note, it is possible to set an appropriate pitch.

  The above description of the embodiments is for the purpose of facilitating the understanding of the present invention, and does not limit the present invention. The present invention can be modified and improved without departing from the gist thereof, and the present invention includes the equivalents thereof. For example, it may be configured as follows.

  Regarding the reference data, although the MIDI format data is exemplified in the above embodiment, the data may not be MIDI format data. That is, any data that is output in synchronization with the performance of the karaoke music and includes the pitch information and the delimitation information of each note in the song melody can be used as reference data.

  Regarding the recording means for recording the recording of the pitch of the singing voice, the above-mentioned embodiment uses the singing voice pitch storage area 21e of the storage unit 23 and stores the data of the singing voice pitch in the area, but this configuration It is not limited to As long as the pitch of the singing voice is read out, it may be recorded in any form.

  Although the thing integrated in the karaoke apparatus 1 was illustrated in the above-mentioned embodiment regarding the karaoke scoring apparatus, it is not limited to this aspect. It may be incorporated in a personal computer or a home game machine, or may be a dedicated scoring device.

DESCRIPTION OF SYMBOLS 1 ... Karaoke apparatus, 2 ... Transmission path, 11 ... Karaoke main body, 12 ... Speaker, 13 ... Monitor, 14 ... Singing microphone, 15 ... Remote control apparatus, 21 ... Control part, 21a ... CPU, 21b ... Memory, 21c ... Reference sound High storage area, 21 d: Reference pitch difference storage area, 21 e: Singing voice pitch storage area, 21 f: Singing voice pitch difference storage area, 21 g ... Difference value storage area, 21 h ... Judgment result storage area, 22: Communication unit, 23 ... Memory unit, 23a ... Music data storage area, 23b ... Scoring program storage area, 24 ... Sound source unit, 25 ... Sound processing unit, 26 ... Display processing unit, 27 ... Operation unit, RT ... Router device, BS ... Bus, SP: sample pitch group, SP 1: sample pitch group, SP 2: sample pitch group, sp: sample pitch, X: horizontal location

Claims (2)

With the performance of karaoke music, a play means for obtaining a reference data including one pitch information and delimiter information for each musical note in the song melody in synchronism with the playing
Singing voice input means for inputting singing voice;
Recording means for recording the pitch of the singing voice for each note identified by the delimiter information;
A first scoring is performed by comparing the difference in pitch between two consecutive notes included in the reference data and the difference in pitch between the two notes included in the recorded singing voice corresponding to the two notes. Scoring means,
Bei to give a,
Among the plurality of sample pitches of the singing voice input within the period of one note identified by the division information, the pitch recorded in the recording means is less than a predetermined range of pitch fluctuation in a predetermined period. If a horizontal point is detected, the average value of the horizontal point is taken as the pitch of this note, and if the horizontal point is not detected, the average value of all sample pitches detected during the pronunciation period is used. A karaoke scoring device characterized by having the pitch of the note concerned . Login means for logging the user in to the karaoke scoring device to be used;
Second scoring means for comparing the reference data and the singing voice for each note identified by the delimiter information and scoring according to the pitch difference;
Equipped with
Wherein when the user who has logged one person by log unit scored in the first scoring means, karaoke scoring of claim 1 Symbol mounting, characterized in that scored in the second scoring means otherwise apparatus.

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