JP6944364B2 - Karaoke equipment - Google Patents

Description

The present invention relates to a karaoke device.

Duet singing is one of the ways to enjoy karaoke. For example, when a karaoke box is used by a plurality of people, the participants can enjoy a duet singing. In addition, there are many male users (or female users) who come to the night store to enjoy duet singing with the female staff (or male staff) of the store.

In order to further expand the enjoyment of such duet singing, techniques for scoring duet singing by singer and diagnosing the compatibility of two singers are known.

For example, Patent Document 1 discloses a karaoke system in which when a user who has reserved a duet song selects a partner and sings the duet, the user and the partner's singing are appropriately scored.

In addition, Patent Document 2 states that if the singing styles of the two duet singers deviate from the model singing style of the music, the two people are compatible with each other. The karaoke device to be judged is disclosed.

Further, Patent Document 3 discloses a technique for controlling the display mode of the singing image of the other party based on the compatibility evaluation value between the singers performing the communication duet.

On the other hand, in recent years, it has become known that karaoke singing has a stress-relieving effect. Therefore, Patent Document 4 discloses a technique for supporting the user to effectively relieve stress by singing karaoke and improving the satisfaction of the user. Specifically, the electrode provided in the stress value detecting means of the remote input / output device detects the first stress value at the time of the user's login operation and detects the second stress value at the time of the logout operation to detect the user stress information. The stress relieving value is calculated based on the first stress value and the second stress value in the stress relieving degree calculation means, and the stress relieving value calculated by the notification means is notified when the user logs out. The technology is disclosed.

Further, as a technique for detecting the degree of tension of the user, for example, Patent Document 5 describes a karaoke microphone provided with a vibration detecting means for detecting the vibration of the human body, and a frequency corresponding to the natural vibration of the human body from the detection signal of the vibration detecting means. A karaoke system including a signal filtering means for extracting components, a determining means for determining the degree of tension by comparing an extracted signal obtained through the signal filtering means with a preset reference value, and the like are disclosed. Further, Patent Document 6 discloses a karaoke device that executes a detection process for detecting a tension state based on a user's singing voice. Alternatively, Patent Document 7 discloses a relaxation guidance device capable of determining a relaxed state of a living body by using a pulse wave waveform detected from a living body.

Japanese Unexamined Patent Publication No. 2008-250186 Japanese Unexamined Patent Publication No. 2006-259237 Japanese Unexamined Patent Publication No. 2015-040995 Japanese Unexamined Patent Publication No. 2015-172701 JP-A-2007-225993 Japanese Unexamined Patent Publication No. 2017-045018 Japanese Unexamined Patent Publication No. 10-076012

By the way, the real pleasure of duet singing is not only the singer who selects the target karaoke song (hereinafter, "first singer"), but also the partner who sings duet with the first singer (hereinafter, "first singer"). The "second singer") is also able to enjoy karaoke singing. That is, when evaluating the karaoke singing of each of the first singer and the second singer, it is preferable to consider whether or not the duet partner can enjoy the karaoke singing without feeling stress.

An object of the present invention is to provide a karaoke device capable of performing a singing evaluation that reflects the stress felt by a duet partner.

The main invention for achieving the above object is a karaoke device used by a first singer who selects a karaoke song and a second singer who sings a duet of the selected karaoke song with the first singer. A scoring process for calculating a scoring value by scoring the singing voice data extracted from the singing voice obtained by singing the karaoke song based on at least one of pitch, volume and singing technique. The unit, the stress value detecting unit that detects the stress value felt by the singer, the scoring value of the first singer scored by the scoring processing unit, and the second unit detected by the stress value detecting unit. It is a karaoke apparatus having a karaoke singing evaluation unit for evaluating the singing of the first singer based on the stress value of the singer.
Other features of the present invention will be clarified by the description of the description and drawings described later.

According to the present invention, it is possible to perform a singing evaluation that reflects the stress felt by the duet partner.

It is a figure which shows the hardware configuration example of the karaoke apparatus which concerns on embodiment. It is a figure which shows the software configuration example of the apparatus main body which concerns on embodiment. It is a figure which showed the stress value which concerns on embodiment. It is a flowchart which shows the process of the karaoke apparatus which concerns on embodiment. It is a figure which showed the stress value which concerns on the modification 2. It is a figure which shows the software structure example of the apparatus main body which concerns on modification 2.

<Embodiment>
The karaoke device 1 according to the present embodiment will be described with reference to FIGS. 1 to 4. In the present embodiment, the first singer is a singer who selects a karaoke song, and the second singer is a singer who sings the selected karaoke song in a duet together with the first singer.

== Karaoke device ==
The karaoke device 1 is a device for playing a karaoke piece selected by a singer and for the singer to sing karaoke along with the performance. As shown in FIG. 1, the karaoke device 1 includes a karaoke body 10, a speaker 20, a display device 30, a microphone 40a, a microphone 40b, and a remote control device 50.

The speaker 20 is configured to emit sound based on the sound emitted signal from the karaoke main body 10. The display device 30 is configured to display an image or an image on the screen based on the signal from the karaoke main body 10. The microphone 40a and the microphone 40b are configured to convert the singing voice of the singer (the input voice to the microphone 40a or the microphone 40b) into an analog singing voice signal and input it to the karaoke main body 10. When performing duet singing, the first singer and the second singer each perform karaoke singing with separate microphones.

(Karaoke hardware)
As shown in FIG. 1, the karaoke main body 10 includes a control unit 11, a communication unit 12, a storage unit 13, an acoustic processing unit 14, a display processing unit 15, and an operation unit 16. Each configuration is connected to bus B via an interface (not shown).

The karaoke body 10 performs various controls related to karaoke singing, such as performance control of the selected karaoke music, display control of lyrics and background images, and processing of a singing voice signal input through the microphone 40a or the microphone 40b.

The control unit 11 includes a CPU 11a and a memory 11b. The CPU 11a realizes various control functions by executing an operation program stored in the memory 11b. The memory 11b is a storage device that stores a program to be executed in the CPU 11a and temporarily stores various information when the program is executed.

The communication unit 12 provides an interface for connecting the karaoke body 10 to the communication line via a router (not shown).

The storage unit 13 is a large-capacity storage device that stores various types of data, such as a hard disk drive. The storage unit 13 stores a plurality of music data for performance by the karaoke device 1.

Identification information (music ID) for identifying each karaoke music is added to the music data. The music data includes accompaniment data, reference data, background image data, lyrics data, and attribute information. The accompaniment data is MIDI format data that is the source of the karaoke performance sound. Reference data is data used as a reference when scoring karaoke singing by a singer. The reference data includes pitch (pitch) data, sound length data, timing data, and the like. The background image data is data corresponding to the background image displayed on the display device 30 or the like at the time of karaoke performance. The lyrics data is data related to lyrics (lyric telop) to be displayed on the display device 30 or the like. The attribute information is information about the karaoke music such as a song title, a singer name, a lyricist / composer name, and a genre.

Based on the control of the control unit 11, the sound processing unit 14 controls the performance of the karaoke music and processes the singing voice signal input through the microphone 40a or the microphone 40b. The sound processing unit 14 includes, for example, a MIDI sound source, a mixer, and an amplifier (none of which are shown). The control unit 11 sequentially reads out the accompaniment data of the reserved karaoke music based on the tempo clock signal and inputs it to the MIDI sound source. The MIDI sound source generates a musical tone signal based on the accompaniment data. The mixer mixes the musical tone signal with the singing voice signal output from the microphone 40a or the microphone 40b at an appropriate ratio and outputs the mixture to the amplifier. The amplifier amplifies the mixing signal from the mixer and outputs it to the speaker 20 as a sound emission signal. As a result, the karaoke performance sound based on the sound emission signal and the singing sound from the microphone 40a or the microphone 40b are emitted from the speaker 20. When performing a duet singing, the singing sounds from the microphones 40a and 40b are simultaneously emitted.

The display processing unit 15 performs processing related to various displays in the display device 30 based on the control of the control unit 11. For example, the display processing unit 15 controls the display device 30 to display an image in which lyrics and various icons are superimposed on a background image at the time of performance.

The operation unit 16 includes a panel switch, a remote control reception circuit, and the like, and sends operation signals such as a music selection signal and a performance stop signal to the control unit 11 in response to the operation of the panel switch of the karaoke device 1 or the remote control device 50 by the singer. Output. The control unit 11 detects the operation signal from the operation unit 16 and executes the corresponding process.

The remote control device 50 is a device for performing various operations on the karaoke main body 10. The singer can use the remote control device 50 to select (reserve) a karaoke song that he / she wishes to sing.

(Karaoke main unit software)
FIG. 2 is a diagram showing a software configuration example of the karaoke main body 10. The karaoke main body 10 includes a scoring processing unit 100, a stress value detection unit 200, a karaoke song evaluation unit 300, and a performance control unit 400. The scoring processing unit 100, the stress value detection unit 200, the karaoke song evaluation unit 300, and the performance control unit 400 are realized by the CPU 11a executing a program stored in the memory 11b.

[Scoring section]
The scoring processing unit 100 calculates the scoring value by scoring the singing voice data extracted from the singing voice obtained by singing the karaoke music based on at least one of pitch, volume and singing technique.

Known techniques can be used for scoring singing. For example, the scoring processing unit 100 extracts singing voice data such as pitch (pitch) data and volume data from the singing voice signal input from the microphone 40a and compares it with the reference data of the music to determine the scoring value. calculate.

Further, when the first singer and the second singer perform duet singing, the scoring processing unit 100 performs scoring processing for the karaoke singing of the first singer and scoring processing for the karaoke singing of the second singer. And can be performed individually, and each scoring value can be calculated.

[Stress value detector]
The stress value detection unit 200 detects the stress value felt by the singer.

Stress is a load felt by a singer, such as mental pressure on the singer (anxiety, tension, disgust, etc.) and physical changes (trembling, dizziness, etc.) associated with the mental pressure. The stress value indicates the stress felt by the singer as a numerical value (for example, 0 point (low stress) to 100 points (high stress)) or a rank (A (low stress) to E (high stress)). The stress value is detected, for example, for each predetermined singing section. In the present embodiment, the stress value detection unit 200 detects the stress for each singing section as a numerical value.

A known technique can be used for detecting the stress value. For example, the stress value detection unit 200 can detect the stress value by analyzing the singing voice signal of the singer. Specifically, it is known that when stress is felt, it appears as a tremor of the singing voice (variation in pitch fluctuation). Therefore, the stress value detection unit 200 can analyze the singing voice signal and detect the stress value based on the magnitude and degree of the fluctuation of the pitch (see Patent Document 6 for details).

The stress value detection unit 200 can also detect the stress value by analyzing the vibration of the body of the singer holding the microphone 40a or the microphone 40b. In this case, each microphone is provided with a vibration detection unit and a transfer unit (neither of which is shown). The vibration detection unit detects the vibration of the singer's body as the duet sings. When the vibration detection unit detects the vibration of the body, the transfer unit transfers the signal (detection signal) to the stress detection unit 200. The stress detection unit 200 extracts a frequency component corresponding to the natural vibration of the human body from the detection signal and compares it with a preset reference value to determine the degree of stress. Then, the stress value detection unit 200 determines the stress value based on the determination result (see Patent Document 5 for details).

Alternatively, the stress value can be detected by analyzing the pulse wave of the singer holding the microphone 40a or the microphone 40b. In this case, each microphone is provided with a pulse wave detection unit and a transfer unit (neither shown) for detecting the pulse wave. The pulse wave detection unit detects the pulse wave of the singer along with the duet singing. The transfer unit transfers the pulse wave detection signal detected by the pulse wave detection unit to the stress detection unit 200. The stress detection unit 200 analyzes the pulse wave detection signal to determine the degree of stress. Then, the stress value detection unit 200 determines the stress value based on the determination result (see Patent Document 7 for details).

Further, when the first singer and the second singer perform duet singing, the stress value detection unit 200 detects the stress value for the singing voice of the first singer and the singing voice of the second singer. The stress value can be detected individually, and each stress value can be detected.

FIG. 3 shows an example of the stress value of the second singer in the duet singing of the karaoke song X. In this example, the maximum value of the stress value is 100 points, and the minimum value is 0 points, which is a maximum of 100 points.

The stress value changes according to the stress felt by the singer. For example, as in the singing sections A and B in FIG. 3, when the degree of tension is strong at the beginning of singing, the stress value becomes high. After that, when karaoke singing is enjoyable, the stress value gradually decreases (see the values of singing sections C and D in FIG. 3), and the stress value remains low (singing sections F to 3 in FIG. 3). See the value of H). On the other hand, the stress value becomes high when a situation occurs in which the karaoke singing cannot be enjoyed, such as when the pitch is removed and the audience is chilled (see the value of the singing section E in FIG. 3).

[Karaoke Singing Evaluation Department]
The karaoke singing evaluation unit 300 evaluates the singing of each singer who performs a duet singing based on the scoring value scored by the scoring processing unit 100 and the stress value detected by the stress value detecting unit 200.

The singing is evaluated by comprehensively evaluating whether the singing is performed according to the reference data of the karaoke music and whether the duet partner can enjoy the duet singing without feeling stress.

The karaoke song evaluation unit 300 according to the present embodiment is based on the score value of the first singer scored by the scoring processing unit 100 and the stress value of the second singer detected by the stress value detection unit 200. Then, the singing of the first singer is evaluated.

For example, when the stress value as shown in FIG. 3 is obtained, the karaoke singing evaluation unit 300 determines the average value of the stress values in all singing sections ((80 points + 65 points + 30 points + 10 points + 55 points + 10 points + 5 points + 5 points)). / 8) is the stress value (32.5 points) of the second singer. Further, it is assumed that the scoring result for the karaoke singing of the first singer who sang the karaoke song X duet was 85.75 points.

In this case, the karaoke singing evaluation unit 300 uses these values to evaluate the singing of the first singer. For example, when the weighting of "scoring result of the first singer: stress value of the second singer = 10: 2" is set, the karaoke singing evaluation unit 300 determines (85.75 points)-(32). .5 points x 0.2) = 79.25 points is calculated as the value of the singing evaluation of the first singer. That is, if the person who performed the duet singing does not feel any stress (when the stress value of the second singer is 0), the scoring result of the first singer is not deducted. On the contrary, when the person who performed the duet singing feels the maximum stress (when the stress value of the second singer is 100), the scoring result of the first singer is deducted by 20 points.

The karaoke singing evaluation unit 300 can present the evaluation result to the singer. For example, the karaoke singing evaluation unit 300 can display the calculated score on the display device 30. Alternatively, the karaoke singing evaluation unit 300 may display the scoring value of the first singer and the stress value of the second singer separately by the scoring processing unit 100 as the singing evaluation of the first singer. good.

[Performance control unit]
The performance control unit 400 controls the performance of the karaoke music. Specifically, when the performance processing unit 400 receives the input of the music ID of the music via the remote controller 50 or the like, the performance processing unit 400 reads the music data corresponding to the music ID from the storage unit 13 and starts playing the karaoke music.

== About the operation of the karaoke device 1 ==
Next, a specific example of the operation of the karaoke device 1 in the present embodiment will be described with reference to FIG. FIG. 4 is a flowchart showing an operation example of the karaoke device 1. Here, an example will be described in which the karaoke song X selected by the first singer is duet sung together with the second singer and the singing of the first singer is evaluated.

The karaoke device 1 performs a karaoke performance based on the accompaniment data of the karaoke music X selected by the first singer (Karaoke performance, step 10). The first singer and the second singer perform a duet singing along with the performance.

After the duet singing of the karaoke song X is completed, the scoring processing unit 100 compares the singing voice data extracted from the singing voice of the first singer obtained by singing the karaoke song X with the reference data. , Calculate the scoring value (calculate the scoring value of the first singer. Step 11).

On the other hand, the stress value detection unit 200 analyzes the singing voice signal of the second singer obtained by singing the karaoke song X, and detects the stress value for each singing section (stress of the second singer). Detect the value. Step 12).

The karaoke singing evaluation unit 300 performs the singing of the first singer based on the score value of the first singer calculated in step 11 and the stress value of the second singer detected in step 12. Evaluate (singing evaluation of the first singer. Step 13).

In the above example, an example in which various processes are executed after the duet singing of the karaoke song X is completed has been described, but the stress value can also be detected sequentially every time the karaoke singing in one singing section is completed. good. For example, the process of step 12 is performed after the duet singing of the singing section A is completed, the process of step 12 is performed after the singing of the singing section B is completed, the process of step 12 is performed after the singing of the singing section C is completed, and so on. The process of step 12 may be repeated until the end of the karaoke song X.

As described above, the karaoke device 1 according to the present embodiment scores the singing voice data extracted from the singing voice obtained by singing the karaoke music X based on at least one of pitch, volume and singing technique. The scoring processing unit 100 that calculates the scoring value, the stress value detection unit 200 that detects the stress value felt by the singer, the scoring value of the first singer scored by the scoring processing unit 100, and the stress value detection. It has a karaoke singing evaluation unit 300 that evaluates the singing of the first singer based on the stress value of the second singer detected by the unit 200.

In this way, when evaluating the singing of the first singer, not only the scoring value based on the singing of the first singer but also the stress value of the second singer who performed the duet singing together is considered. Therefore, the viewpoint of whether or not the duet partner (second singer) can enjoy the duet singing without feeling stress can be included in the evaluation. That is, according to the karaoke device 1 according to the present embodiment, it is possible to perform singing evaluation that reflects the stress felt by the duet partner.

In addition, the stress value detection unit 200 can detect the stress value by analyzing the singing voice signal of the singer. Alternatively, the stress value detection unit 200 can detect the stress value by analyzing the vibration or pulse wave detection signal of the body of the singer holding the microphone 40a and / or the microphone 40b.

In this way, by analyzing the singing voice signal of the singer, the vibration of the body, or the pulse wave detection signal to detect the stress value, the stress actually felt by the singer can be accurately evaluated by the singing evaluation of the duet partner. It can be reflected.

<Modification example 1>
In the above embodiment, the example in which the singing evaluation of the first singer is performed has been described, but the singing evaluation of the second singer may be performed. In this case, the karaoke song evaluation unit 300 is based on the score value of the second singer scored by the scoring processing unit 100 and the stress value of the first singer detected by the stress value detection unit 200. Evaluate the singing of the second singer.

For example, in the example of the above embodiment, the scoring result for the karaoke singing of the second singer who sang the song X duet is 83.55 points, and the stress of the first singer detected by the stress value detection unit 200. It is assumed that the average value of the values is 10.87 points.

In this case, the karaoke singing evaluation unit 300 uses these values to evaluate the singing of the second singer. For example, when the weighting of "scoring result of the second singer: stress value of the first singer = 10: 2" is set, the karaoke singing evaluation unit 300 determines (83.55 points)-(10). .87 points x 0.2) = 81.38 points is calculated as the value of the singing evaluation of the second singer.

In this example, the scoring value is higher for the first singer (first singer: 85.75 points, second singer: 83.55 points). On the other hand, it is considered that the first singer enjoyed the duet singing (stress value: 10.87 points), but the second singer did not enjoy the duet singing so much (stress value: 32.5). point). In such a case, the final singing evaluation is lower for the first singer.

<Modification 2>
Duet singing may be performed in a situation unfavorable for the second singer, such as when the boss (first singer) forces a subordinate (second singer) to perform a duet. In such a case, the second singer wants to finish the duet singing, but it is difficult for the second singer to stop the performance by using the remote control device 50 by himself / herself.

Therefore, the performance control unit 400 may stop the performance of the karaoke music when the stress value of the second singer exceeds the predetermined value in a predetermined number of singing sections. The predetermined number and the predetermined value are values that serve as a reference for determining the stop of playing the karaoke music. Any value can be preset for the predetermined number and the predetermined value.

For example, suppose that the predetermined number is set to "3" and the predetermined value is set to "50 points". On the other hand, as a result of calculating the stress value of the second singer for each singing section, it is assumed that the value as shown in FIG. 5 is shown. In this case, the stress value of the second singer exceeds 50 points in the four singing sections. In this case, the performance control unit 400 automatically stops the performance of the karaoke music. The performance control unit 400 can also stop the performance when the stress value exceeding the predetermined value continues for a predetermined number of times (for example, when 50 points or more continue three times in a row as shown in FIG. 5). Alternatively, the performance may be stopped when the stress value exceeding the predetermined value reaches a predetermined number (for example, when 50 points or more occur three times). With such a configuration, the duet singing can be forcibly terminated. Therefore, the first singer can be penalized as part of the singing evaluation. Moreover, since the second singer does not have to continue the duet singing that is not enthusiastic, he / she can enjoy the karaoke singing place without feeling stress.

Further, for example, when the duet singing is performed in a situation unfavorable for the second singer, the selection of the karaoke song may not be appropriate. In such a case, the second singer may be able to comfortably perform a duet singing without feeling stress if the song is a song that he / she is good at or has singing experience.

Here, FIG. 6 is a diagram showing a software configuration example of the karaoke main body 10 according to this modification. The karaoke main body 10 includes a scoring processing unit 100, a stress value detection unit 200, a karaoke song evaluation unit 300, a performance control unit 400, and a recommended music presentation unit 500. The scoring processing unit 100, the stress value detection unit 200, the karaoke song evaluation unit 300, the performance control unit 400, and the recommended music presentation unit 500 are realized by the CPU 11a executing a program stored in the memory 11b.

After stopping the performance of the karaoke music, the recommendation music presentation unit 500 searches for and presents the recommended music for performing a duet singing from the singing history of the second singer.

The singing history is information about karaoke singing performed by the singer in the past. The singing history includes, for example, the name of the sung song, the date and time of singing, the scoring result of the singing, and the like. Further, in the present modification, the singing history includes identification information for identifying whether or not duet singing has been performed and a stress value detected during karaoke singing for each karaoke song sung. The singing history is stored in the storage unit 13 (or a server device (not shown)) in association with the identifier (singer ID) of each singer.

Specifically, after the performance control unit 400 stops playing the karaoke music, the recommendation music presentation unit 500 reads the singing history of the second singer from the storage unit 13, and the second singer has sung in the past. A song for which duet singing has been performed is specified from the karaoke songs, and the display device 30 or the like is displayed as "a karaoke song recommended for duet singing". Further, when there are a plurality of karaoke songs sung by the second singer in the past duet, the recommendation song presenting unit 500 may present all the corresponding karaoke songs, and the stress value is the lowest among them. A karaoke song with a high singing evaluation (that is, a karaoke song that is considered to have enjoyed the duet singing most) may be presented as a recommended song. With such a configuration, it is possible to present a karaoke song that the second singer desires to sing duet. Therefore, since the first singer can recognize the music that the second singer who sang the duet can enjoy, the singing evaluation can be improved at the next opportunity to perform the duet singing with the second singer. In addition, since the second singer can easily perform duet singing with a karaoke song that he / she can easily sing, he / she can enjoy the karaoke singing place without feeling stress.

<Modification example 3>
As one of the singing evaluations, it is also possible to determine how much stress is relieved by karaoke singing (stress relieving effect). In this case, the stress value detection unit 200 detects in advance the initial stress value felt by the singer before performing the duet singing. A known method (see, for example, the techniques described in Patent Document 4 and Patent Document 7) can be used to detect the initial stress value.

For example, as in the above embodiment, it is assumed that the karaoke song X selected by the first singer is duet sung together with the second singer. In this case, the stress detection unit 200 detects the initial stress value S1 of the second singer in advance.

The first singer and the second singer perform a duet singing of the song X along with the karaoke performance. After the duet singing of the karaoke music X is completed, the stress value detection unit 200 analyzes the singing voice signal of the second singer obtained by singing the karaoke music X, and detects the stress value S2.

The karaoke singing evaluation unit 300 evaluates the change in the stress value of the second singer accompanying the duet singing based on the initial stress value S1 and the detected stress value S2 of the second singer. For example, it is assumed that the detected stress value S2 (30 points) is obtained with respect to the initial stress value S1 (60 points). In this case, the stress value of the second singer is reduced by the karaoke singing. That is, the second singer was able to relieve the stress by singing the duet. In this way, according to the configuration of this modified example, it is possible to evaluate whether or not the singer was able to relieve the stress by singing the duet. The karaoke singing evaluation unit 300 can present the change in the stress value, which is the evaluation result, to the singer together with the singing evaluation of the first singer. For a plurality of first singers, the stress relief evaluation of the second singer (the person who sang the duet) may be scored, and ranking data may be generated and presented. As a result, it can be expected that the higher-ranked first singer will be required to sing a duet by more second singers. On the other hand, since it is expected that the lower first singer can avoid duet singing, the motivation of the first singer to improve the consideration for the second singer is increased. That is, the second singer can enjoy the place of karaoke singing without feeling stress.

<Others>
The above embodiment is presented as an example and does not limit the scope of the invention. The above configurations can be implemented in appropriate combinations, and various omissions, replacements, and changes can be made without departing from the gist of the invention. The above-described embodiments and modifications thereof are included in the scope and gist of the invention, as well as in the scope of the invention described in the claims and the equivalent scope thereof.

1 Karaoke device 100 Scoring unit 200 Stress value detection unit 300 Karaoke singing evaluation unit 400 Performance control unit

Claims (5)

A karaoke device used by a first singer who selects a karaoke song and a second singer who sings a duet of the selected karaoke song with the first singer.
A scoring processing unit that calculates a scoring value by scoring singing voice data extracted from singing voice obtained by singing the karaoke music based on at least one of pitch, volume, and singing technique.
A stress value detector that detects the stress value felt by the singer,
The singing of the first singer based on the scored value of the first singer scored by the scoring processing unit and the stress value of the second singer detected by the stress value detecting unit. Karaoke singing evaluation department to evaluate
Karaoke device with. The karaoke device according to claim 1, wherein the stress value detecting unit detects the stress value by analyzing the singing voice signal of the singer. The karaoke device according to claim 1, wherein the stress value detection unit detects the stress value by analyzing a vibration or pulse wave detection signal of the body of a singer holding a microphone. It has a performance control unit that controls the performance of karaoke music.
The stress value detection unit detects the stress value for each singing section of the karaoke song, and determines the stress value.
Any of claims 1 to 3, wherein the performance control unit stops playing the karaoke music when the stress value of the second singer exceeds a predetermined value in a predetermined number of singing sections. The karaoke device described in one. The stress value detection unit detects in advance the initial stress value felt by the singer before performing the duet singing, and then detects the initial stress value.
The karaoke singing evaluation unit evaluates a change in the stress value of the second singer accompanying the duet singing based on the stress value of the second singer and the initial stress value of the second singer. The karaoke device according to any one of claims 1 to 4, wherein the karaoke device is characterized by the above.

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