JP2022006939A - Karaoke device - Google Patents

Abstract

To realize infectious disease prevention effective in a karaoke room.SOLUTION: A karaoke device (10) which is installed in a karaoke room in which a ventilation system (16) is introduced, and stores lyrics data of songs has: a calculation unit (23) which accumulates an evaluation value of indoor environment based on a specific lyrics character including a predetermined consonant in the lyrics data of sung songs; a determination unit (24) determines whether or not an accumulation evaluation value of the indoor environment satisfies a predetermined condition related to ventilation; a control unit (25) which recommends or executes the ventilation when the accumulation evaluation value of the indoor environment satisfies the predetermined condition; and an update unit (26) which updates the accumulation evaluation value of the indoor environment depending on recommendation or execution of the ventilation by the control unit.SELECTED DRAWING: Figure 2

Description

The present invention relates to a karaoke device.

Ventilation in the facility is regarded as important as one of the measures against infectious diseases. In particular, karaoke rooms are required to have high sound insulation even in facilities, and it is desirable to use first-class ventilation in which air supply and exhaust are forcibly performed by a machine without opening doors and windows. As a ventilation system in a facility, a system that monitors the environmental condition in the facility and forcibly ventilates the inside of the facility has been proposed (see, for example, Patent Document 1). This ventilation system grasps the risk of diseases depending on the indoor environment from the deterioration of environmental information such as indoor temperature and humidity, and forcibly ventilates the room to suppress the spread of infectious diseases due to droplet infection etc. ..

Japanese Unexamined Patent Publication No. 2019-07913

By the way, when the lyrics include characters such as "sa line" and "pa line" when singing karaoke, the singing voice contains fricative sounds and bursting sounds, and splashes are likely to occur. Patent Document 1 discloses forced ventilation based on the deterioration of environmental information, but since the droplets associated with singing are not taken into consideration, the karaoke room may not be properly ventilated.

An object of the present invention is to provide a karaoke device capable of realizing effective measures against infectious diseases in a karaoke room.

The main invention for achieving the above object is a karaoke device installed in a karaoke room in which a ventilation system is installed and in which lyrics data of a song is stored, and a predetermined consonant in the lyrics data of the sung song is stored. A calculation unit that accumulates the evaluation values of the indoor environment based on the specific lyrics including the lyrics, a judgment unit that determines whether the cumulative evaluation value of the indoor environment satisfies the predetermined condition for ventilation, and the cumulative evaluation value of the indoor environment are the predetermined conditions. It is a karaoke device having a control unit that recommends or executes ventilation when the condition is satisfied, and an update unit that updates the cumulative evaluation value of the indoor environment according to the recommendation or execution of ventilation by the control unit.

According to the present invention, an evaluation value of an indoor environment is obtained from a specific lyric character including a predetermined consonant in which droplets are likely to occur, and the amount of droplets generated in the karaoke room is estimated by accumulating the evaluation values of the indoor environment. When the cumulative evaluation value of the indoor environment satisfies a predetermined condition, the indoor environment is improved by the recommendation or execution of ventilation in the karaoke room, and the cumulative evaluation value of the indoor environment is updated. In this way, it is possible to monitor the occurrence of droplets associated with singing and realize effective measures against infectious diseases in the karaoke room.

It is a block diagram of the karaoke apparatus of 1st Embodiment. It is a functional block diagram of the karaoke apparatus of 1st Embodiment. It is a figure which shows an example of the change of the cumulative evaluation value of the indoor environment of 1st Embodiment. It is a flowchart which shows the processing of the karaoke apparatus of 1st Embodiment. It is a figure which shows an example of the change of the cumulative evaluation value of the indoor environment of 2nd Embodiment. It is a functional block diagram of the karaoke apparatus of 3rd Embodiment. It is a functional block diagram of the karaoke apparatus of 4th Embodiment.

<First Embodiment>
The karaoke device 10 of the first embodiment will be described with reference to FIG. FIG. 1 is a configuration diagram of the karaoke device 10 of the first embodiment. FIG. 2 is a functional block diagram of the karaoke device 10 of the first embodiment. The functional block diagram of FIG. 2 shows a functional block related to the process of determining the necessity of ventilation for convenience of explanation.

As shown in FIG. 1, the karaoke device 10 is installed in a karaoke room in which a ventilation system 16 is installed, and includes a karaoke body 11, a monitor 12, a speaker 13, a microphone 14, and a remote control device 15. I have. The monitor 12 displays the lyrics telop together with the background image in accordance with the karaoke performance based on the video signal from the karaoke main body 11. The speaker 13 emits the singing sound of the singer together with the accompaniment sound of the music based on the sound emission signal from the karaoke main body 11. The microphone 14 converts the singing voice of the singer into a singing voice signal and inputs it to the karaoke main body 11.

The remote control device 15 is mainly composed of a touch panel. The remote controller 15 displays various information such as a search menu and search results on the touch panel, and accepts input by the touch panel. The remote control device 15 and the karaoke main body 11 are paired via wireless communication, and various information is mutually transmitted and received between the remote control device 15 and the karaoke main body 11. The remote control device 15 searches for music based on the user's touch operation. By touching the transfer button displayed on the touch panel, the music ID is transmitted to the karaoke body 11 as reserved music information.

The karaoke main body 11 registers the reserved music information received from the remote control device 15 in the reservation management table of the storage unit 21 (see FIG. 2). The storage unit 21 stores various data related to karaoke singing such as music data for each music ID. The karaoke main body 11 reads the reserved music information from the reservation management table in the order of registration, and reads the music data and the like corresponding to the music ID of the reserved music information from the storage unit 21. The music data includes accompaniment data that is the source of the accompaniment sound of the karaoke music, reference data that is the scoring standard for singing, and lyrics data that is the source of the lyrics telop displayed on the monitor 12.

When the karaoke body 11 starts playing karaoke, the lyrics telop and the background image are displayed on the monitor 12 based on the lyrics data and the background image data in synchronization with the reproduction of the accompaniment data. Further, in the karaoke main body 11, the accompaniment sound signal of the karaoke performance and the singing voice signal input from the microphone 14 are mixed at an appropriate ratio by the mixer, and this mixing signal is amplified by the amplifier and emitted from the speaker 13. In this way, when the singer sings along with the karaoke performance, the singing voice is emitted from the speaker 13 together with the accompaniment sound. The singing voice is scored based on the reference data.

As shown in FIG. 2, the karaoke main body 11 is configured to be able to determine whether or not ventilation of the karaoke room is necessary in addition to the karaoke performance processing. The karaoke main body 11 is provided with a storage unit 21, a performance unit 22, a calculation unit 23, a determination unit 24, a control unit 25, and an update unit 26. The storage unit 21 stores a reservation management table in which the reserved music information is arranged in the order of registration, music data associated with the music ID, background video data, and the like. The performance unit 22 is composed of a MIDI (Musical Instrument Digital Interface) sound source or the like. The performance unit 22 reads the music data from the storage unit 21 and reproduces the accompaniment data included in the music data.

The calculation unit 23 accumulates the evaluation values of the indoor environment based on the specific lyrics characters including the predetermined consonants in the lyrics data of the sung song. Since the lyrics character that is likely to cause splashes when singing is set as the specific lyrics character, it is possible to estimate the amount of droplets generated after singing from the evaluation value of the indoor environment. In this case, after the karaoke performance of the music is completed, the music data is read from the storage unit 21 to the calculation unit 23, and the specific lyrics character including a predetermined consonant is extracted from the lyrics data included in the music data. Then, the number of appearances of the specific lyrics character in the lyrics data is counted, and this count value is accumulated as the evaluation value of the indoor environment.

Here, the predetermined consonants of the present embodiment are "P", "B", "T", "D", "K", "G", "S", and "S" when the lyrics characters are written in Roman letters. It is a sound corresponding to "H". That is, the specific lyric characters of the present embodiment are each of "pa line", "ba line", "ta line", "da line", "ka line", and "ga line", which are plosives at the beginning of a phrase. It is each character of "sa line" and "ha line" which is a fricative sound at the beginning of a character and a phrase. In the present embodiment, a predetermined consonant is determined on the premise of Japanese lyrics, but in the case of English lyrics, the predetermined consonant includes sounds corresponding to "F", "V", etc. You may.

For example, if the lyrics of a singing section with song X are "Kibunhasaikou you and I are Papparapa", the plosives at the beginning of each phrase are one "ki" and two "pa". , The fricative sound at the beginning of each phrase has one "sa". Since the number of appearances of the specific lyrics character is 4, the evaluation value of the indoor environment is "4". When all the specific lyrics characters of the lyrics data of the music X are counted and the number of appearances of the specific lyrics characters is 30, the evaluation value of the indoor environment after the karaoke performance of the music X is set to "30". Become. The evaluation value of the indoor environment is accumulated and held as the cumulative evaluation value at each end of the karaoke performance of the music.

The determination unit 24 determines whether or not the cumulative evaluation value of the indoor environment satisfies a predetermined condition regarding ventilation. As a predetermined condition, a threshold value for the cumulative evaluation value of the indoor environment presumed to require ventilation is set, and this threshold value is predetermined based on the size of the karaoke room, the capacity of the ventilation system 16, and the like. When the cumulative evaluation value of the indoor environment is equal to or greater than the threshold value, it is determined that the predetermined condition is satisfied, and when the cumulative evaluation value of the indoor environment is less than the threshold value, it is determined that the predetermined condition is not satisfied. When the threshold value is set to "50", the predetermined condition is not satisfied until the cumulative evaluation value of the indoor environment after the end of the karaoke performance of one song or a plurality of songs becomes "50" or more.

The control unit 25 executes ventilation when the cumulative evaluation value of the indoor environment satisfies a predetermined condition. A ventilation instruction signal is output from the control unit 25 to the ventilation system 16, and the ventilation system 16 receives the instruction signal and starts ventilation of the karaoke room. The ventilation system 16 measures a predetermined ventilation time with a timer, and automatically ends the ventilation of the karaoke room after the ventilation time has elapsed. Here, the ventilation time according to a predetermined condition, that is, the ventilation time required to improve the indoor environment by the evaluation value corresponding to the threshold value is set. For example, when the threshold value is "50", the ventilation time is set to 10 minutes.

The update unit 26 updates the cumulative evaluation value of the indoor environment according to the execution of ventilation by the control unit 25. The evaluation value corresponding to the threshold value is subtracted from the cumulative evaluation value of the indoor environment before ventilation of the karaoke room, and the cumulative evaluation value of the indoor environment after ventilation of the karaoke room is updated. For example, when the threshold value is "50", the ventilation is performed for only 10 minutes, and the cumulative evaluation value of the indoor environment before ventilation is updated to a value lowered by "50". The cumulative evaluation value of the indoor environment after the update is output to the calculation unit 23, and the calculation unit 23 accumulates the evaluation value of the indoor environment each time the karaoke performance of the music is completed with respect to the cumulative evaluation value of the indoor environment after the update. Will be done.

In the present embodiment, the control unit 25 is configured to instruct the ventilation system 16 to ventilate when the cumulative evaluation value of the indoor environment satisfies the predetermined condition, but when the cumulative evaluation value of the indoor environment satisfies the predetermined condition. Ventilation may be recommended to the user. A ventilation recommendation message may be output from the control unit 25 to the monitor 12, and the recommendation message may be displayed on the monitor 12 to encourage the user to ventilate the karaoke room. The recommended voice for ventilation may be output from the control unit 25 to the speaker 13, and the recommended voice may be emitted to the speaker 13 to encourage the user to ventilate the karaoke room. The recommended method of ventilation is not limited to the above method, and ventilation may be recommended by, for example, a warning sound or blinking. Further, since the updating unit 26 updates the cumulative evaluation value of the indoor environment even in response to the ventilation recommendation by the control unit 25, it is desirable that the user who has received the ventilation recommendation actually ventilates the karaoke room. Therefore, the karaoke performance by the performance unit 22 may be prohibited until the user ventilates the karaoke room. For example, a ventilation confirmation screen is displayed on the monitor 12, and the karaoke performance of the music is stopped until the ventilation check box is checked on the screen.

The processing of each part of the karaoke main body 11 may be realized by software using a processor, or may be realized by a logic circuit (hardware) formed in an integrated circuit or the like. When a processor is used, various processes are performed by the processor reading and executing a program stored in a memory. As the processor, for example, a CPU (Central Processing Unit) is used. Further, the memory is composed of one or a plurality of storage media such as ROM (Read Only Memory) and RAM (Random Access Memory) depending on the intended use.

With reference to FIG. 3, the processing operation of the karaoke device 10 will be described with reference to a specific example. FIG. 3 is a diagram showing an example of a change in the cumulative evaluation value of the indoor environment of the first embodiment. In addition, in FIG. 3, reference numerals of FIGS. 1 and 2 are appropriately used for description.

Music X1-X3 is reserved in the karaoke device 10 by the user U. The storage unit 21 of the karaoke device 10 stores the lyrics data of the songs X1-X3. Further, in the determination unit 24, the threshold value for the cumulative evaluation value of the indoor environment is set to "50" as a predetermined condition for determining the necessity of ventilation. When the user U instructs the karaoke device 10 to perform karaoke, the karaoke device 10 starts the karaoke performance in order from the music X1. The lyrics telop of the music X1 is displayed on the monitor 12, and the user U sings the music X1 while watching the lyrics telop.

As shown in FIG. 3, the karaoke performance of the music X1 ends at time t1, and the calculation unit 23 counts the number of appearances of the specific lyrics character in the lyrics data of the music X1. The count value "30" of the number of appearances of the specific lyrics character is the cumulative evaluation value of the indoor environment. Since the cumulative evaluation value "30" of the indoor environment is less than the threshold value "50", the determination unit 24 determines that the cumulative evaluation value of the indoor environment does not satisfy the predetermined condition. Therefore, the control unit 25 does not instruct the ventilation system 16 to ventilate, and the karaoke device 10 starts the karaoke performance of the music X2 in a state where the cumulative evaluation value of the indoor environment is maintained at "30". ..

The karaoke performance of the music X2 ends at time t2, and the calculation unit 23 counts the number of appearances of the specific lyrics character in the lyrics data of the music X2. The count value "25" of the number of appearances of the specific lyrics character is accumulated in the cumulative evaluation value "30" of the indoor environment at the end of the karaoke performance of the music X1. Since the cumulative evaluation value of the indoor environment becomes "55" and exceeds the threshold value "50", the determination unit 24 determines that the cumulative evaluation value of the indoor environment satisfies a predetermined condition. Therefore, the control unit 25 instructs the ventilation system 16 to ventilate, and the ventilation system 16 ventilates the karaoke room for only 10 minutes.

Further, when the ventilation system 16 is instructed to ventilate by the control unit 25, the renewal unit 26 updates the cumulative evaluation value of the indoor environment. The ventilation time of the ventilation system 16 is set to a time during which the indoor environment in the karaoke room is improved by ventilation until the evaluation value "50" corresponding to the threshold value decreases from the cumulative evaluation value of the indoor environment. Since the indoor environment in the karaoke room is improved by ventilation after the lapse of the ventilation time, the cumulative evaluation value of the indoor environment is updated from "55" to "5" by the updating unit 26. The karaoke device 10 starts the karaoke performance of the music X3 in a state where the cumulative evaluation value of the indoor environment is maintained at "5" after the update.

The karaoke performance of the music X3 ends at time t3, and the calculation unit 23 counts the number of appearances of the specific lyrics character in the lyrics data of the music X3. The count value "35" of the number of appearances of the specific lyrics character is accumulated in the cumulative evaluation value "5" of the indoor environment at the end of the karaoke performance of the music X2. The cumulative evaluation value of the indoor environment is "40", but since the cumulative evaluation value of the indoor environment is less than the threshold value "50", the determination unit 24 determines that the cumulative evaluation value of the indoor environment does not satisfy the predetermined condition. .. Therefore, the control unit 25 does not instruct the ventilation system 16 to ventilate, and the cumulative evaluation value of the indoor environment is maintained at "40".

In the present embodiment, the karaoke performance is performed even while the ventilation system 16 is operating, and the evaluation values of the indoor environment are accumulated after the karaoke performance is completed. However, the karaoke performance is performed while the ventilation system 16 is operating. It may be stopped.

The flow of the processing operation of the karaoke apparatus 10 will be described with reference to FIG. FIG. 4 is a flowchart showing the processing of the karaoke device 10 of the first embodiment. The flowchart shown in FIG. 4 is an example, and the processing operation of the karaoke device 10 is not limited to this flowchart. In addition, in FIG. 4, the reference numerals of FIGS. 1 and 2 are appropriately used for description.

The user U starts to use the karaoke room, and the music is reserved for the karaoke device 10. As shown in FIG. 4, when the user U is instructed to start playing the music, the karaoke device 10 starts the karaoke performance (step S01). When the karaoke performance of the music is completed (step S02), the calculation unit 23 counts the specific lyrics characters of the lyrics data of the music in order to estimate the amount of droplets generated by the singing, and this count value is the evaluation of the indoor environment. Accumulated as a value (step S03). After the karaoke performance of the first song is completed, the evaluation value of the indoor environment is used as it is as the cumulative evaluation value.

Next, the determination unit 24 determines whether or not the cumulative evaluation value of the indoor environment satisfies a predetermined condition (step S04). When the cumulative evaluation value of the indoor environment is less than the threshold value (No in step S04), the cumulative evaluation value of the indoor environment does not satisfy the predetermined condition, so that ventilation of the karaoke room becomes unnecessary and the process shifts to step S7. .. When the cumulative evaluation value of the indoor environment is equal to or greater than the threshold value (Yes in step S04), the karaoke room is ventilated by the ventilation system 16 because the cumulative evaluation value of the indoor environment satisfies a predetermined condition (step S05). Ventilation reduces the amount of splashes in the karaoke room and improves the indoor environment.

Further, the cumulative evaluation value of the indoor environment is updated by the updating unit 26 as much as the indoor environment of the karaoke room is improved by ventilation (step S06). Then, the processes of steps S01 to S06 are repeated until the usage time of the karaoke room ends, and the deterioration of the indoor environment of the karaoke room is suppressed (step S07).

In the present embodiment, the cumulative processing of the calculation unit 23 and the determination processing of the determination unit 24 are performed after the end of the karaoke performance, but the cumulative processing of the calculation unit 23 and the determination processing of the determination unit 24 are performed during the karaoke performance. May be done. For example, when a lyric telop is displayed as the karaoke performance of the music progresses, the calculation unit 23 counts the number of appearances of the specific lyric character included in the lyric telop and accumulates the evaluation value of the indoor environment. Further, each time the number of appearances of the specific lyrics character is counted, the determination unit 24 determines whether or not the cumulative evaluation value of the indoor environment satisfies a predetermined condition. In this case, when the cumulative evaluation value of the indoor environment satisfies the predetermined condition, the control unit 25 may recommend or execute ventilation, and the updating unit 26 may update the cumulative evaluation value of the indoor environment. Alternatively, when the karaoke performance of this song is finished, the control unit 25 may recommend or execute ventilation, and the update unit 26 may update the cumulative evaluation value of the indoor environment.

As described above, according to the first embodiment, the evaluation value of the indoor environment is obtained from the specific lyrics characters including the predetermined consonants in which the droplets are likely to occur, and the accumulation of the evaluation values of the indoor environment causes the amount of droplets generated in the karaoke room. Guessed. When the cumulative evaluation value of the indoor environment satisfies a predetermined condition, the indoor environment is improved by the recommendation or execution of ventilation in the karaoke room, and the cumulative evaluation value of the indoor environment is updated. In this way, it is possible to monitor the occurrence of droplets associated with singing and realize effective countermeasures against infectious diseases in the karaoke room.

<Modification example>
In the first embodiment, the count value of the number of appearances of the specific lyrics character is accumulated as the evaluation value of the indoor environment, but as shown in the following modification, the evaluation value of the indoor environment weighted according to the type of consonant is used. It may be accumulated. When counting the number of occurrences of specific lyrics characters at the beginning of words in lyrics data, weighting is applied to the count values of some plosives and fricatives that are presumed to be particularly prone to splashing, and other plosives and fricatives. No weighting is applied to the count value. Note that some plosives and fricatives may be weighted with the same weighting factor, or may be weighted with different weighting factors.

Specifically, the count value of the plosive sound of "Pa line" is weighted 1.5 times, the count value of the fricative sound of "Sa line" is weighted 1.2 times, and the count value of other plosive sounds and fricative sounds. The count value is not weighted. If the lyrics of a singing section with song X are "Kibunhasaikou you and I are Papparapa", the plosives at the beginning of each phrase are one "ki" and two "pa", respectively. The fricative sound at the beginning of a phrase has one "sa". Since "ki" is not weighted, "pa" is weighted 1.5 times, and "sa" is weighted 1.2 times, the evaluation value of the indoor environment is "5.2".

As described above, according to the modified example, it is possible to more accurately accumulate the evaluation values of the indoor environment in consideration of the susceptibility to the occurrence of droplets for each type of consonant.

<Second Embodiment>
The karaoke device 10 of the second embodiment will be described. FIG. 5 is a diagram showing an example of a change in the cumulative evaluation value of the indoor environment of the second embodiment. The karaoke device 10 of the second embodiment ventilates the karaoke room until the time corresponding to the cumulative evaluation value of the indoor environment elapses, and resets the cumulative evaluation value of the indoor environment. It is different from the karaoke device 10. Therefore, with respect to the second embodiment, the description of the same configuration as that of the first embodiment will be omitted. Further, in FIG. 5, reference numerals of the first embodiment shown in FIGS. 1 and 2 will be described as appropriate.

As shown in FIG. 5, the karaoke performance of the music X1 ends at time t4, and the calculation unit 23 counts the number of appearances of the specific lyrics character in the lyrics data of the music X1. The count value "30" of the number of appearances of the specific lyrics character is the cumulative evaluation value of the indoor environment. Since the cumulative evaluation value "30" of the indoor environment is less than the threshold value "50", the determination unit 24 determines that the cumulative evaluation value of the indoor environment does not satisfy the predetermined condition. Therefore, the control unit 25 does not instruct the ventilation system 16 to ventilate, and the karaoke device 10 starts the karaoke performance of the music X2 in a state where the cumulative evaluation value of the indoor environment is maintained at "30". ..

The karaoke performance of the music X2 ends at time t5, and the calculation unit 23 counts the number of appearances of the specific lyrics character in the lyrics data of the music X2. The count value "25" of the number of appearances of the specific lyrics character is accumulated in the cumulative evaluation value "30" of the indoor environment at the end of the karaoke performance of the music X1. Since the cumulative evaluation value of the indoor environment becomes "55" and exceeds the threshold value "50", the determination unit 24 determines that the cumulative evaluation value of the indoor environment satisfies a predetermined condition. Therefore, the control unit 25 instructs the ventilation system 16 to ventilate, and the ventilation system 16 ventilates the karaoke room.

The ventilation system 16 has an ability to remove droplets from the karaoke room by ventilation for 10 minutes based on conditions such as the size of the karaoke room when the cumulative evaluation value of the indoor environment is "50". When the cumulative evaluation value of the indoor environment exceeds "50", the ventilation system 16 requires an extension of ventilation for 2 minutes to remove the droplets corresponding to the cumulative evaluation value "10" of the indoor environment. The karaoke room is ventilated by the ventilation system 16 and droplets are removed from the karaoke room until 11 minutes corresponding to the cumulative evaluation value “55” of the indoor environment have elapsed.

Further, when the ventilation system 16 is instructed to ventilate by the control unit 25, the renewal unit 26 updates the cumulative evaluation value of the indoor environment. The ventilation time of the ventilation system 16 is set to a time during which the indoor environment in the karaoke room is improved by ventilation until the cumulative evaluation value of the indoor environment is reset as described above. Since the indoor environment in the karaoke room is improved by ventilation after the lapse of the ventilation time, the cumulative evaluation value of the indoor environment is updated from "55" to "0" by the updating unit 26. With the cumulative evaluation value of the indoor environment reset, the karaoke device 10 starts the karaoke performance of the music X3.

The karaoke performance of the music X3 ends at time t6, and the calculation unit 23 counts the number of appearances of the specific lyrics character in the lyrics data of the music X3. The count value "35" of the number of appearances of the specific lyrics character is accumulated in the cumulative evaluation value "0" of the indoor environment at the end of the karaoke performance of the music X2. The cumulative evaluation value of the indoor environment is "35", but since the cumulative evaluation value of the indoor environment is less than the threshold value "50", the determination unit 24 determines that the cumulative evaluation value of the indoor environment does not satisfy the predetermined condition. .. Therefore, the control unit 25 does not instruct the ventilation system 16 to ventilate, and the cumulative evaluation value of the indoor environment is maintained at "35".

Also in this embodiment, the karaoke performance may be performed even while the ventilation system 16 is operating, and the evaluation values of the indoor environment may be accumulated after the karaoke performance is completed, or the karaoke performance may be performed while the ventilation system 16 is operating. It may be stopped.

As described above, according to the second embodiment, ventilation can be performed until the droplets of the karaoke room are sufficiently suppressed, and more effective infectious disease countermeasures can be realized for the karaoke room.

<Third Embodiment>
The karaoke device 30 of the third embodiment will be described with reference to FIG. FIG. 6 is a functional block diagram of the karaoke device 30 of the third embodiment. The karaoke device 30 of the third embodiment is different from the karaoke device 10 of the first embodiment in that the cumulative evaluation value of the indoor environment is corrected according to the input level of the singing voice. Therefore, with respect to the third embodiment, the description of the same configuration as that of the first embodiment will be omitted.

As shown in FIG. 6, the karaoke device 30 of the third embodiment is configured in substantially the same manner as the karaoke device 10 of the first embodiment (see FIG. 1), and it is possible to determine whether or not ventilation of the karaoke room is necessary. It is configured in. The karaoke main body 31 of the karaoke device 30 is provided with a storage unit 32, a performance unit 33, a measurement unit 34, a calculation unit 35, a determination unit 36, a control unit 37, and an update unit 38. Since the volume of the singing voice affects the amount of droplets generated, the singing voice of the singer is measured by the measuring unit 34, and the evaluation value of the indoor environment considering the size of the singing voice is calculated by the calculation unit 35. ..

A singing voice is input to the measuring unit 34 from the microphone 14, and the input level of the singing voice is measured by the measuring unit 34. The input level of the singing voice may be measured for each syllable (note) of the singing using a known singing scoring technique. Further, the measuring unit 34 calculates the average value of the input levels of all the syllables in the singing voice, and calculates the ratio of the average value of the input level to the reference value of the input level (hereinafter referred to as the reference value ratio). .. The reference value of the input level is the input level of the singing voice of a general singer, and can be stored in the karaoke device 30 in advance for each song.

The input level reference value ratio is input to the calculation unit 35 from the measurement unit 34, and the evaluation value of the indoor environment is corrected by the calculation unit 35 using the input level reference value ratio. In this case, the number of appearances of the specific lyrics character in the lyrics data of the song is counted to calculate the evaluation value of the indoor environment, and the evaluation value of the indoor environment is multiplied by the reference value ratio of the input level to obtain the evaluation value of the indoor environment. It will be corrected.

For example, it is assumed that the input level of the singing voice of the user U is higher than the input level of the singing voice of a general singer, and the measuring unit 34 calculates "1.15" as the reference value ratio of the input level. .. The evaluation value of the indoor environment obtained from the number of appearances of the specific lyrics character in the lyrics data of the music X is "30", and this "30" is multiplied by "1.15" to obtain the cumulative evaluation value of the indoor environment. It is corrected to "34.5". In this way, when the singing voice of the singer is relatively loud, the evaluation value of the indoor environment obtained from the number of appearances of the specific lyrics character in the lyrics data is corrected to be high.

Further, for example, the input level of the singing voice of the user U is smaller than the input level of the singing voice of a general singer, and the measuring unit 34 calculates "0.95" as the reference value ratio of the input level. do. The evaluation value of the indoor environment obtained from the number of appearances of the specific lyrics character in the lyrics data of the music X is "30", and this "30" is multiplied by "0.95" to obtain the cumulative evaluation value of the indoor environment. It is corrected to "28.5". In this way, when the singing voice of the singer is relatively small, the evaluation value of the indoor environment obtained from the number of appearances of the specific lyrics character in the lyrics data is corrected to be low.

The measuring unit 34 calculated the reference value ratio by comparing the average value of the input levels of all the syllables in the singing voice with the reference value, but the method of calculating the reference value ratio of the input level by the measuring unit 34 is particularly particular. Not limited. For example, the measuring unit 34 may calculate the reference value ratio by comparing the average value of the input levels of the one chorus syllables with the reference value, or the measurement unit 34 may calculate the reference value ratio with the maximum value of the input levels of all the syllables in the singing voice. The reference value ratio may be calculated by comparing the intermediate value of the minimum value with the reference value.

As described above, according to the third embodiment, the cumulative evaluation value of the indoor environment can be calculated more accurately in consideration of the volume of the singing voice.

<Fourth Embodiment>
The karaoke device 40 of the fourth embodiment will be described with reference to FIG. 7. FIG. 7 is a functional block diagram of the karaoke device 40 according to the fourth embodiment. The karaoke device 40 of the fourth embodiment is different from the karaoke device 10 of the first embodiment in that the cumulative evaluation value of the indoor environment is corrected according to the number of singers. Therefore, with respect to the fourth embodiment, the description of the same configuration as that of the first embodiment will be omitted.

As shown in FIG. 7, the karaoke device 40 of the fourth embodiment is configured in substantially the same manner as the karaoke device 10 of the first embodiment (see FIG. 1), and it is possible to determine whether or not ventilation of the karaoke room is necessary. It is configured in. The karaoke main body 41 of the karaoke device 40 is provided with a storage unit 42, a performance unit 43, an acquisition unit 44, a calculation unit 45, a determination unit 46, a control unit 47, and an update unit 48. Since the number of singers affects the amount of droplets generated, the acquisition unit 44 acquires the number of singers, and the calculation unit 45 calculates the evaluation value of the indoor environment in consideration of the number of singers.

The captured image of the singer is input from the camera 18 to the acquisition unit 44, and the number of singers who sang at the same time is acquired by the acquisition unit 44. The number of singers may be acquired by subjecting the captured image to a known face recognition process. For example, it is assumed that the users U1 and U2 are duet, and "2" is acquired as the number of singers by the acquisition unit 44. The evaluation value of the indoor environment obtained from the number of appearances of the specific lyrics character in the lyrics data of the music X is "30", and the cumulative evaluation value of the indoor environment is "60" by multiplying this "30" by "2". Is corrected to. In this way, according to the number of singers, the evaluation value of the indoor environment obtained from the number of appearances of the specific lyrics character in the lyrics data is corrected to be high.

Although the acquisition unit 44 acquires the number of singers from the captured video, the method for acquiring the number of singers by the acquisition unit 44 is not particularly limited. For example, the acquisition unit 44 may acquire the number of singers from the number of microphones 14 connected to the karaoke device 40, analyze the singing audio signal input to the karaoke device 40, and sing at the same time. You may get the number of people.

As described above, according to the fourth embodiment, the cumulative evaluation value of the indoor environment can be calculated more accurately in consideration of the number of singers.

Further, in each embodiment and the modification, the lyrics character representing the bursting sound and the friction sound is exemplified as the specific lyrics character including a predetermined consonant, but the specific lyrics character can be changed as appropriate.

Further, in each embodiment, an example in which the karaoke devices 10, 30 and 40 are karaoke commanders has been described, but the karaoke devices 10, 30 and 40 are configured by a mobile device such as a mobile phone connected to a server via a network. May be done.

Further, in each of the above-described embodiments and modifications, by installing a program on the karaoke devices 10, 30 and 40, a function for determining whether or not ventilation of the karaoke room is necessary is added to the karaoke devices 10, 30 and 40. You may. This program is stored in a storage medium. The storage medium is not particularly limited, but may be a non-transient storage medium such as an optical disk, a magneto-optical disk, or a flash memory.

Moreover, although this embodiment has been described, as another embodiment, the above-described embodiment and modifications may be combined in whole or in part.

Further, the technique of the present invention is not limited to the above-described embodiment, and may be variously modified, replaced, or modified without departing from the spirit of the technical idea. Furthermore, if the technical idea can be realized in another way by the advancement of the technology or another technology derived from it, it may be carried out by the method. Therefore, the claims cover all embodiments that may be included within the scope of the technical idea.

10, 30, 40: Karaoke device 23, 35, 45: Calculation unit 24, 36, 46: Judgment unit 25, 37, 47: Control unit 26, 38, 48: Update unit 16: Ventilation system 34: Measurement unit 44: Acquisition department

Claims (5)

It is a karaoke device that is installed in a karaoke room with a ventilation system and stores the lyrics data of the music.
A calculation unit that accumulates the evaluation values of the indoor environment based on specific lyrics characters including predetermined consonants in the lyrics data of the sung song, and
A judgment unit that determines whether or not the cumulative evaluation value of the indoor environment satisfies a predetermined condition regarding ventilation, and
A control unit that recommends or executes ventilation when the cumulative evaluation value of the indoor environment meets certain conditions.
A karaoke device comprising: an update unit that updates the cumulative evaluation value of the indoor environment according to the recommendation or execution of ventilation by the control unit. The karaoke device according to claim 1, wherein the calculation unit accumulates evaluation values of an indoor environment weighted according to the type of consonant. The control unit ventilates the karaoke room until the time corresponding to the cumulative evaluation value of the indoor environment elapses.
The karaoke device according to claim 1 or 2, wherein the updating unit resets the cumulative evaluation value of the indoor environment. It has a measuring unit that measures the input level of singing voice.
The karaoke device according to any one of claims 1 to 3, wherein the calculation unit corrects the cumulative evaluation value of the indoor environment according to the input level. Has an acquisition department to acquire the number of singers,
The karaoke device according to any one of claims 1 to 3, wherein the calculation unit corrects the cumulative evaluation value of the indoor environment according to the number of singers.

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