JP2006259237A - Karaoke scoring device for grading synchronism of duet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve a device for grading that singing is congenial if two singers of a duet are similarly out of a singing model even when they are out of the singing model of a musical piece. <P>SOLUTION: The karaoke scoring device compares sound volume transition of a singing voice signal from a first microphone with that from a second microphone, and outputs scoring data correlated in time similarity of both. The karaoke scoring device compares pitch transition of the singing voice signal from the first microphone with that from the second microphone, and outputs scoring data correlated in the time similarity of both. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a karaoke scoring device attached to a karaoke device, and more particularly to a karaoke scoring device for scoring the synchronism of two singing voices when two people sing a duet song.

  In Japanese Patent No. 3290918 “Karaoke device with singing scoring function”, there is a technique for sequentially comparing a scoring standard obtained from karaoke accompaniment music data with a singing voice signal from a microphone and outputting scoring data obtained by analyzing the skill of singing. It is disclosed.

  In Japanese Patent No. 3452791, “Karaoke scoring device”, when two people sing a duet song, each part's scoring standard obtained from karaoke accompaniment music data and the singing voice signal from the first microphone and the second microphone, respectively In comparison, a technique for outputting scoring data for two singing voice signals is disclosed.

  In Japanese Patent No. 3573425, “Karaoke device characterized by karaoke battle game”, when singing by two people, each singing voice is scored one by one according to the scoring standard obtained from karaoke accompaniment music, and scoring during singing A technique for expressing the progress as a karaoke battle game using CG images is disclosed.

  Conventionally, scoring standards are obtained from karaoke accompaniment music (which may be an example song recorded along with this), and the singing voice signal from the microphone is analyzed and scored. Duet songs are also scored for each part using the same method. In this method, it is not possible to analyze and score the musical compatibility of two singing voices who sing duet songs.

  The inventor of this application has attempted to carry out compatibility diagnostic scoring of two people who sing duets as part of the diversifying karaoke scoring service. In other words, even if it is off from the typical way of singing a song, if the two duets are out of the same way, they are scored as having good compatibility. For this purpose, the present invention provides a karaoke scoring device for scoring duet synchronization.

  The karaoke scoring device according to the first invention compares the volume transition of the singing voice signal from the first microphone with the volume transition of the singing voice signal from the second microphone, and obtains the scoring data correlated with the temporal similarity between the two. Output.

  The karaoke scoring device according to the second invention compares the pitch transition of the singing voice signal from the first microphone with the pitch transition of the singing voice signal from the second microphone, and obtains the scoring data correlated with the temporal similarity between the two. Output.

  The karaoke scoring device according to the third invention compares the volume transition / pitch transition of the singing voice signal from the first microphone with the volume transition / pitch transition of the singing voice signal from the second microphone, and temporally resembles the volume transition. The scoring data that correlates with the time and the temporal similarity of the pitch transition is output.

  In any of the karaoke scoring devices of the invention, as in the conventional general karaoke scoring device, the scoring standard obtained from the karaoke accompaniment music data is compared with the singing voice signals from the first microphone and the second microphone, respectively. It can be used in combination with a configuration that outputs scoring data for two singing voice signals.

  According to the karaoke scoring device of the present invention, even if it is off from the exemplary singing of the music, if the two duets are out of the same way, it can be scored as having good compatibility. It ’s very interesting.

=== Basic configuration and operation of karaoke apparatus ===
A schematic configuration of a karaoke apparatus including a karaoke scoring apparatus according to an embodiment of the present invention is shown in FIG. The central control unit 11 is a computer main body including a CPU, a RAM, and a ROM inside, and controls various peripheral units via the data bus 100 and the control bus 110 to control the entire system.

  The hard disk device 12 stores a large number of karaoke data for generating accompaniment music and lyrics images of karaoke music. When the central control unit 11 receives a request input input from the remote control transmitter 17 or the operation panel 18 via the operation control unit 19, the central control unit 11 sequentially processes the corresponding karaoke data according to the request input order. For example, karaoke data corresponding to the requested music is extracted from the hard disk device 12, accompaniment music generation data (such as MIDI data) is transferred to the synthesizer 13, and accompaniment music is generated. The accompaniment music is mixed with the singing voice input from the microphone 15 by the mixing amplifier 14 and output to the speaker 16. In addition, the lyric rendering data in the karaoke data is transferred to the video RAM 20 in synchronization with the accompaniment music generation process, and the lyric images are sequentially bitmapped. The video control unit 21 superimposes this lyric image on the background video output from the video CD player 22 and outputs it to the display 23.

  The karaoke apparatus 1 includes a karaoke scoring device according to the present invention, and scores the singing state of a person singing along with the karaoke music and outputs the scoring result. And when scoring with respect to the singing of a duet music, for example, the person who sings a male part and the person who sings a female part can be distinguished, and singing power can be evaluated for every singing part.

=== Duet scoring ===
When the user wants to use the duet music scoring function, when a predetermined operation key is pressed after a series of music numbers (duet music) for performance reservation from the remote control transmitter 17 or the operation panel 18, the music number and duet scoring are performed. The instruction is transferred to the central control unit 11.

  Prior to the start of the duet music performance, men and women use two microphones 15 respectively. Here, the two microphones 15 are not distinguished for males and females, and males and females can arbitrarily select the favorite microphones 15 respectively.

  When the central control unit 11 starts the process of performing the duet song, the central control unit 11 monitors the start of a section (usually a singing section) to be scored set in the karaoke data. When this starting point is detected, the singing scoring unit 30 which is the main part of the singing scoring function is instructed to start the scoring process.

=== Standard scoring process for scoring two people individually ===
FIG. 2 shows the configuration of the singing scoring unit 30. The scoring processor 31 that executes scoring processing according to the control of the central control unit 11 is a microcomputer dedicated to scoring processing that includes a CPU, RAM, and ROM. The two systems of AD converters 32 and 33 individually sample the audio signals from the two systems of microphones 15 and convert them into digital data.

  The scoring processor 31 receives accompaniment music generation data via the data bus 100, and acquires main melody data in this data as scoring reference data. Further, for each sound being played from the accompaniment music generation data, it is discriminated whether the sound belongs to a male or female singing part.

  The scoring processor 31 receives sampling data from each of the two systems of AD converters 32 and 33, and compares the acquired scoring reference data with each sound based on a predetermined algorithm. A predetermined score is given to the comparison result. Scoring data for each microphone system is generated by attaching the singing part to which the corresponding accompaniment sound belongs to the score and a code indicating whether or not there is a voice input to the accompaniment sound. The scoring data is sent out on the data bus 100 and stored in the RAM inside the central control unit 11.

  The central control unit 11 stops the operation of the singing scoring unit 30 when the performance of all the singing sections of the music is completed, and totals the scoring data accumulated so far for each microphone system. First, it is determined which type of microphone is used for men or women. For that purpose, based on the voice input code in the scoring data, it is examined which frequency of the microphone is input to which singing part and how often the voice signal is input. The microphone B is determined to be a female microphone.

  Next, the total score is calculated for each gender. In this calculation, for the male microphone, the male part and the mixed voice part are used as the singing target singing part, and the scoring data corresponding to the singing of the part is adopted. For female microphones, the female part and the mixed voice part will be the singing target part.

=== Synchronous scoring process for two people's compatibility ===
In the singing scoring unit 30, a duet synchronism scoring process is performed in parallel with the standard scoring for each singer.
First, I will explain the synchrony scoring of mixed voice parts that men and women sing in unison (including octave differences). During such a performance period of the unison mixed part, the volume transition of the singing voice signal from the first microphone is compared with the volume transition of the singing voice signal from the second microphone, and correlated to the temporal similarity of both in real time. The first scoring data is output. At the same time, the second scoring data that compares the pitch transition of the singing voice signal from the first microphone with the pitch transition of the singing voice signal from the second microphone and correlates with the temporal similarity of both in real time. Is output. Of course, the higher the similarity, the better the scoring data.

  In the above case, it is not always necessary to analyze and score temporal similarity across a series of unison mixed parts. Section information that should be subjected to synchronization scoring may be incorporated into the karaoke accompaniment music data, and similarity scoring may be performed only in the section designated by the section information.

  As for the output of scoring related to the synchronism of volume transition, the first scoring data is generated every time analysis scoring of one section is performed, and the display (not limited to the display 23 in FIG. It is displayed as a numerical value or design as a compatibility evaluation of the two.

  The output of the scoring regarding the synchronism of the pitch transition may be presented to the singer by displaying it in the same manner as that of the volume transition. Instead of this presentation method, when the time when both pitch transitions are highly consistent continues for more than the standard, the fact that both pitches are accurately matched is expressed by CG animation using musical note design etc. Display is also preferable.

  Next, the synchronization scoring when singing the same melody (including the octave difference) between a male part and a female voice part that do not overlap in time will be described. Suppose that a male part precedes and a female part appears later.

  The singing scoring unit 30 sequentially measures the volume transition and pitch transition of the singing voice signal from the first microphone during the performance of the male part, expresses each transition pattern in an appropriate digital data format, and temporarily stores it in the memory. Keep it. While playing the female part to be contrasted with this, the volume transition and pitch transition of the singing voice signal from the second microphone are sequentially measured, and the female playing the volume transition pattern and pitch transition pattern recorded during the male part performance The progress of the part and the time axis are sequentially read from the memory.

  Then, using the same data processing method as the unison mixed part, the volume transition / pitch transition of the female part being sung is compared with the volume transition / pitch transition of the male part that has been sung, and their temporal similarities are compared. Sex can be analyzed and scored. The display form of the scoring results can also be the same as the unison mixed part.

  In the case of a mixed voice part where two people sing in harmony, only the temporal similarity of the volume transition is scored for that section, and even if the similarity of the pitch transition is poor, no points are deducted.

  In addition, if the short-term periodicity of pitch transition is extracted, the vibrato period and depth can be analyzed. By comparing this, the similarity of the vibrato characteristics of the two people can be taken into account.

  When the music performance is finished, it is preferable to calculate the overall evaluation of the synchronous scoring that has been sequentially displayed so far and display it as a result of compatibility diagnosis of the two people who have sung the duet. In calculating this comprehensive evaluation, it is also possible to output scoring data correlated with the temporal similarity of the volume transition and correlated with the temporal similarity of the pitch transition.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic block diagram of one Example of the karaoke apparatus which included the karaoke scoring apparatus which concerns on this invention. It is a schematic block diagram of the singing scoring part in an Example same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Karaoke apparatus 11 Central control part 15 Microphone 30 Singing scoring part 31 Scoring processor

Claims (4)

  A karaoke scoring device that compares the volume transition of the singing voice signal from the first microphone with the volume transition of the singing voice signal from the second microphone, and outputs scoring data correlated with the temporal similarity between the two.   A karaoke scoring device that compares the pitch transition of the singing voice signal from the first microphone with the pitch transition of the singing voice signal from the second microphone, and outputs scoring data correlated with the temporal similarity between the two.   Compare the volume transition / pitch transition of the singing voice signal from the first microphone with the volume transition / pitch transition of the singing voice signal from the second microphone, and correlate with the temporal similarity of the volume transition and the temporal similarity of the pitch transition Karaoke scoring device that outputs scoring data correlated with sex. The scoring standard obtained from the karaoke accompaniment music data is compared with the singing voice signals from the first microphone and the second microphone, respectively, and the scoring data for the two systems of singing voice signals is output respectively. The karaoke scoring device described.

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