JP6944365B2 - Karaoke equipment - Google Patents

Description

The present invention relates to a karaoke device.

The karaoke device can perform various operations related to the karaoke performance, such as stopping the karaoke performance, changing the performance volume and the performance pitch, and adjusting the microphone volume, via the main body of the device or the attached remote control device.

However, in order for the singer himself to perform these operations, it is necessary to move to the place where the device main body is installed or the remote control device is placed, which is complicated. Further, in the singing section of the karaoke performance (the section in which the lyrics are set), it is difficult to operate the main body of the device or the remote control device while singing the karaoke. Furthermore, when the device body is inside the counter like a night shop, or when another singer is selecting songs with the remote control device, the singer cannot use the device body or the remote control device (various operations can be performed). There can be no situation).

Therefore, there is disclosed a technique capable of performing a desired operation by inputting a predetermined voice from a microphone used by a singer.

For example, in Patent Document 1, when a specific word is recognized as being input by performing a recognition process of a sound input from a microphone, a code stored in association with the word is converted into an appropriate radio signal. Wireless microphones that are modulated and transmitted are disclosed. According to such a technique, a person using a microphone can remotely control various devices without interrupting vocal movements and body movements.

Further, in Patent Document 2, when the input voice information input from the microphone in the non-singing section (the section in which the lyrics are not set) of the karaoke performance belongs to the singer, the voice recognition result for the input voice information is included. A karaoke device capable of executing voice command processing that executes based voice commands is disclosed. According to such a technique, it is possible to prevent a chat or the like other than the singer from being mistakenly recognized as a voice command.

JP-A-2002-062894 Japanese Unexamined Patent Publication No. 2014-130187

Here, the singer may want to perform various operations related to the karaoke performance in the singing section. For example, if you try to sing a karaoke song that you remember, but you can't sing from a certain point (if the singing section continues after that), the singer may want to stop playing the karaoke. Alternatively, if it is found that the key is not present during karaoke singing in a certain singing section, the singer may want to change the key and sing in the subsequent singing section.

At this time, by using the technique of Patent Document 1, there is a possibility that various operations can be performed by using the microphone even in the singing section. However, according to the technique of Patent Document 1, if the lyrics in the singing section contain the same words as a specific word, the singer recognizes the lyrics as a specific word even when the lyrics are sung. Unwanted operations (wrong operations) may be performed. Further, since the technique of Patent Document 2 performs voice command processing in a non-singing section, it cannot support voice command processing in a singing section.

An object of the present invention is to provide a karaoke device that prevents an operation related to a karaoke performance from being erroneously performed in a singing section when performing an operation related to a karaoke performance based on a voice input from a microphone.

The main invention for achieving the above object is a data storage unit that stores operation commands for performing various operations related to karaoke performance in association with keywords, and a sound input from a microphone in a singing section of a certain song in sequence. By comparing the specified part that analyzes and specifies the voice input character and its input timing in time series with the specified character and the keyword, a predetermined character string consisting of the same character as the keyword is voiced. A first determination unit for determining whether or not the character string has been input, and when the predetermined character string is input by voice, a predetermined character including the input timing of characters constituting the predetermined character string from the lyrics of the certain music. When the lyrics extraction unit that extracts the lyrics to be sung in the period, the comparison unit that compares the extracted lyrics with the predetermined character string, and the extracted lyrics and the predetermined character string do not match, the said When the operation according to the operation command corresponding to the same keyword as the predetermined character string is executed and the extracted lyrics match the predetermined character string, the operation command corresponding to the same keyword as the predetermined character string is executed. It is a karaoke device having a command control unit for prohibiting the following operation.
Other features of the present invention will be clarified by the description of the description and drawings described later.

According to the present invention, when performing an operation related to a karaoke performance based on the voice input from the microphone, it is possible to prevent the operation from being mistakenly performed in the singing section.

It is a figure which shows the hardware configuration example of the karaoke apparatus which concerns on 1st Embodiment. It is a figure which shows the software structure example of the karaoke main body which concerns on 1st Embodiment. It is a figure which shows the example of data stored in the data storage part which concerns on 1st Embodiment. It is a figure which showed the example of the character and the input timing specified by the specific part which concerns on 1st Embodiment. It is a flowchart which shows the process of the karaoke apparatus which concerns on 1st Embodiment. It is a figure which shows the software structure example of the karaoke main body which concerns on 2nd Embodiment. It is a flowchart which shows the process of the karaoke apparatus which concerns on 2nd Embodiment.

<First Embodiment>
The karaoke device 1 according to the present embodiment will be described with reference to FIGS. 1 to 5.

== Karaoke device ==
The karaoke device 1 is a device for performing karaoke performance of a song selected by a singer and singing karaoke by the singer. As shown in FIG. 1, the karaoke device 1 includes a karaoke body 10, a speaker 20, a display device 30, a microphone 40, 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 40 is configured to convert the singing voice of the singer (input voice to the microphone 40) into an analog singing voice signal and input it to the karaoke main body 10.

(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 karaoke performance control of selected songs, display control of lyrics and background images, and processing of singing voice signals input through a microphone 40.

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 performing karaoke 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 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. Each lyrics (character) included in the lyrics data is associated with the timing to be sung. The timing to sing is, for example, the elapsed time (● minutes ● seconds ●) from the start of the performance to the time when the vocalization of the character should be started. The attribute information is information about the 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 music and processes the singing voice signal input through the microphone 40. The sound processing unit 14 includes, for example, a MIDI sound source, an A / D converter, a mixer including a DSP (Digital Signal Processor), a D / A converter, and an amplifier (none of which are shown). The control unit 11 sequentially reads out the accompaniment data of the reserved 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 A / D converter converts the singing voice signal input from the microphone 40 into digital voice data and inputs it to the mixer (DSP). The mixer mixes the musical tone signal and the digital audio data at an appropriate ratio. The D / A converter converts the mixing signal into an analog audio signal, and the amplifier amplifies the analog audio signal from the D / A converter 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 40 are emitted from the speaker 20.

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 during a karaoke 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 body 10 includes a data storage unit 100, a specific unit 200, a first determination unit 300, a lyrics extraction unit 400, a comparison unit 500, and a command control unit 600. The data storage unit 100 is provided as a part of the storage area of the storage unit 13. The specific unit 200, the first determination unit 300, the lyrics extraction unit 400, the comparison unit 500, and the command control unit 600 are realized by the CPU 11a executing a program stored in the memory 11b.

[Data storage]
The data storage unit 100 stores operation commands for performing various operations related to karaoke performance in association with keywords.

The operation command is a command for causing the karaoke device 1 to execute an operation performed on the karaoke performance or an operation performed in association with the karaoke performance. The operation commands include, for example, for stopping the performance, for changing the key, for changing the accompaniment volume, for changing the microphone volume, for adjusting the echo, and the like. The keyword is a character string for inputting each operation command to the karaoke device 1. In the present embodiment, by inputting a predetermined keyword by voice through the microphone 40, an operation according to an operation command corresponding to the predetermined keyword is executed (details will be described later).

FIG. 3 is an example of a table in which operation commands and keywords are associated with each other. In this example, for example, the operation command of "stop playing" is associated with four keywords of "chuushi", "stop", "owari", and "shuryo". In this example, a plurality of keywords are associated with one operation command, but at least one keyword may be associated with one operation command.

[Specific part]
The specifying unit 200 sequentially analyzes the voice input from the microphone 40 in the singing section of a certain song, and specifies the characters input by the voice and the input timing thereof in time series.

The singing section is a section (A melody, B melody, chorus, etc.) in which the lyrics to be sung in a certain song are set. Lyrics composed of at least one character are set in one singing section. The input timing can be indicated as the time when the voice corresponding to a certain character is input (the time when the singer starts uttering the voice) when the performance start time of a certain music is set to "0". The input timing can be obtained, for example, as the timing obtained by subtracting the processing time (the time required from the voice input to the character identification) from the performance timing at the time when a certain character is specified. In addition, each character is specified for each syllable.

Specifically, it is assumed that a certain sound is input from the microphone 40 in a certain singing section of the music X. The specific unit 200 controls the DSP of the sound processing unit 14 and analyzes the digital voice data converted by the A / D converter using a well-known voice recognition algorithm. Then, the specific unit 200 temporarily stores a character based on the syllable recognized from the digital audio data in a RAM (not shown) or the like in association with the input timing at which the character is input by voice.

The identification unit 200 identifies the voice-input characters in chronological order by executing the same process each time a voice input is made from the microphone 40. FIG. 4 is an example showing the specified characters and their input timings. In this example, the characters "a", "i", "ga", "o", "wa", "ri", and "wo" are specified in chronological order.

[First judgment unit]
The first determination unit 300 determines whether or not a predetermined character string composed of the same characters as the keyword has been input by voice by comparing the specified character with the keyword.

Specifically, the first determination unit 300 sequentially compares with the keyword for each specified character. For example, suppose that the character "a" shown in FIG. 4 is specified. In this case, the first determination unit 300 compares "a" with the first character of all the keywords (see FIG. 3) stored in the data storage unit 100. The table of FIG. 3 does not include a keyword whose first character is "a". In this case, the first determination unit 300 performs the same processing in the order of the characters "a", "ga" ...

On the other hand, when the specified character matches the first character of the keyword, the first determination unit 300 compares the character specified next to the character with the second character of the keyword. For example, the character specified next to the above-mentioned "a", "i", and "ga" is "o", and in the table shown in FIG. 3, the character "o" shown in FIG. 4 is the first character. The keyword "Owari" is included. In this case, the first determination unit 300 compares the character "wa" specified next to the character "o" with the second character "o" of the keyword "owari".

As a result of the sequential comparison in this way, when all the characters specified in the time series and the characters of a certain keyword match, the first determination unit 300 says that a character string consisting of the same characters as the keyword is input by voice. to decide. In the case of FIGS. 3 and 4, the first determination unit 300 determines that the predetermined character string "Owari" has been input by voice.

[Lyrics extraction section]
When a predetermined character string is input by voice, the lyrics extraction unit 400 extracts from the lyrics of a certain song the lyrics to be sung in a predetermined period including the input timing of the characters constituting the predetermined character string. ..

The predetermined period is a period for determining the range for extracting the lyrics that should be originally sung. The predetermined period includes the input timing of the characters constituting the predetermined character string. For example, when the predetermined character string is "Owari" shown in FIG. 4, the input timing of the character "O" is set to 1:01:50 to the input timing of the character "R" is set to 1:02: 00. Can be done. On the other hand, some singers deliberately shift the timing of singing, such as plunge singing and tame singing. Therefore, for the predetermined period, a few seconds before and after may be added to the input timing of the predetermined character string. In the above example, the predetermined period may be 1:01: 00 to 1:02:50, which is obtained by adding −0.5 seconds before and +0.5 seconds after.

Specifically, when the predetermined character string "Owari" is input by voice, the lyrics extraction unit 400 reads the lyrics data of the music X from the storage unit 13. The lyrics extraction unit 400 extracts the lyrics to be sung in a predetermined period (for example, 1:01:50 to 1:02: 00) from the read lyrics data. In this example, it is assumed that the lyrics extraction unit 400 extracts "ga end" as the lyrics to be sung from the lyrics of the song X.

[Comparison section]
The comparison unit 500 compares the extracted lyrics with a predetermined character string.

For example, the comparison unit 500 compares the lyrics “ga end” extracted in the above example with the predetermined character string “Owari”. When the extracted lyrics include Chinese characters or foreign languages as in this example, the comparison unit 500 first converts the lyrics into kana characters (“Gaowariwo”). Then, the comparison unit 500 sequentially compares the converted kana character and the predetermined character string character by character. For the comparison in the comparison unit 500, for example, the same processing as in the first determination unit 300 can be performed. That is, the comparison unit 500 compares the first character "ga" of the extracted lyrics with the first character "o" of the predetermined character string. If the first characters do not match, the comparison unit 500 performs the same processing in the order of the second characters "o", "wa", ... Of the extracted lyrics.

On the other hand, when the character included in the extracted lyrics matches the first character of the predetermined character string, the comparison unit 500 compares the next character included in the lyrics with the second character of the predetermined character string. For example, in the above example, the comparison unit 500 compares the next character "wa" included in the lyrics with the second character "wa" of the predetermined character string. By repeating such comparison, the comparison unit 500 determines whether or not the extracted lyrics and the predetermined character string match.

[Command control unit]
The command control unit 600 controls the sound processing unit 14 in response to an operation command input from the outside, and executes various operations related to the karaoke performance.

For example, the command control unit 600 executes an operation according to an operation command input via the operation unit 16 of the karaoke main body 10 or the remote control device 50.

Further, when the extracted lyrics and the predetermined character string do not match, the command control unit 600 according to the present embodiment executes an operation according to the operation command corresponding to the same keyword as the predetermined character string.

The extracted lyrics correspond to the lyrics that should be sung at the time when the voice input is made. Therefore, if a voice input that does not match the lyrics is made, it is appropriate to consider that the singer has input an operation command. Therefore, the command control unit 600 refers to the data storage unit 100, identifies an operation command corresponding to the same keyword as a predetermined character string, and executes an operation according to the operation command.

On the other hand, when the extracted lyrics and the predetermined character string match, the command control unit 600 prohibits the operation according to the operation command corresponding to the same keyword as the predetermined character string.

As described above, the extracted lyrics correspond to the lyrics that should be sung at the time when the voice input is made. Therefore, when a voice input that matches the lyrics is made, it is appropriate to think that the singer simply sang the lyrics to be sung in karaoke. In such a case, it is against the intention of the singer to execute the operation according to the operation command of the same keyword as the predetermined character string.

Therefore, the command control unit 600 prohibits the operation according to the operation command corresponding to the same keyword as the predetermined character string.

In the above example, the comparison unit 500 determines that the extracted lyrics "is the end" and the predetermined character string "Owari" match. In this case, the command control unit 600 prohibits the operation of canceling the performance according to the operation command "stop playing" corresponding to the same keyword "Owari" as the predetermined character string "Owari".

== 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. 5 is a flowchart showing an operation example of the karaoke device 1. In this example, it is assumed that the singer has input voice in a certain singing section of the music X.

The specifying unit 200 sequentially analyzes the voice input from the microphone 40, and specifies the characters input by voice and the input timing thereof in time series (characters and input timing specification. Step 10).

The first determination unit 300 compares the character specified in step 10 with the keyword stored in the data storage unit 100 (comparing the specified character with the keyword. Step 11).

When a predetermined character string consisting of the same characters as the keyword is input by voice (in the case of Y in step 12), the lyrics extraction unit 400 determines the input timing of the characters constituting the predetermined character string from the lyrics of the song X. The lyrics to be sung in a predetermined period including the above are extracted (extraction of the lyrics to be sung. Step 13). On the other hand, if a predetermined character string consisting of the same characters as the keyword is not input by voice (in the case of N in step 12), the subsequent processing is not performed.

The comparison unit 500 compares the lyrics extracted in step 13 with a predetermined character string (comparing the extracted lyrics with a predetermined character string. Step 14).

When the extracted lyrics do not match the predetermined character string (when N is set in step 15), the command control unit 600 executes an operation according to the operation command corresponding to the same keyword as the predetermined character string (of the operation). Execution. Step 16).

On the other hand, when the extracted lyrics and the predetermined character string match (in the case of Y in step 15), the command control unit 600 prohibits the operation according to the operation command corresponding to the same keyword as the predetermined character string (the operation according to the operation command corresponding to the same keyword as the predetermined character string). Prohibition of operation. Step 17). The karaoke device 1 repeats the above process in each singing section until all the singing sections of the music X are completed (in the case of Y in step 18).

As is clear from the above, the karaoke device 1 according to the present embodiment has a data storage unit 100 that stores operation commands for performing various operations related to karaoke performance in association with keywords, and a microphone in a singing section of a certain song. By sequentially analyzing the voice input from 40 and comparing the specified character and the keyword with the specific unit 200 that specifies the voice input character and the input timing in chronological order, the character is composed of the same character as the keyword. The first determination unit 300 for determining whether or not a predetermined character string has been input by voice, and when the predetermined character string is input by voice, among the lyrics of a certain song, the characters constituting the predetermined character string The lyrics extraction unit 400 that extracts the lyrics to be sung in the predetermined period including the input timing, the comparison unit 500 that compares the extracted lyrics with the predetermined character string, and the extracted lyrics and the predetermined character string do not match. If, the operation according to the operation command corresponding to the same keyword as the predetermined character string is executed, and if the extracted lyrics match the predetermined character string, the operation command corresponding to the same keyword as the predetermined character string is followed. It has a command control unit 600 that prohibits such operations.

According to such a karaoke device 1, when there is a voice input from the microphone 40 in the singing section of a certain song, it is determined whether the voice input is a karaoke singing or an operation command input, and an operation command is used. If the input is, the operation according to the operation command can be executed. Therefore, the singer can easily input the operation command without going through the remote controller 50 or the like even during the karaoke performance in the singing section. On the other hand, when the lyrics happen to contain a keyword corresponding to the operation command, according to the karaoke device 1 in the present embodiment, the operation according to the operation command corresponding to the keyword may be executed. There is no. Therefore, an operation contrary to the intention of the singer is not performed. That is, according to the karaoke device 1 according to the present embodiment, when performing an operation related to karaoke performance based on the voice input from the microphone 40, it is possible to prevent the operation from being erroneously performed in the singing section.

In the present embodiment, the processing for executing the operation according to the operation command in the singing section has been described, but the operation according to the operation command may be executed in response to the voice input even in the non-singing section. It is possible. In the non-singing section, there are no lyrics to be sung in karaoke, so if the character string input by voice matches the keyword, it is appropriate to consider that the operation command has been input.

Specifically, when voice input is made from the microphone 40 in the non-singing section, the specific unit 200 sequentially analyzes the input voice and specifies the voice-input characters in chronological order. The first determination unit 300 determines whether or not a predetermined character string composed of the same characters as the keyword has been input by voice by comparing the specified character with the keyword. When a predetermined character string is input by voice, the command control unit 600 executes an operation according to an operation command corresponding to the same keyword as the predetermined character string.

<Second Embodiment>
Next, the karaoke device 1 according to the second embodiment will be described with reference to FIGS. 6 and 7. In the present embodiment, an example will be described in which it is determined in advance whether or not a keyword corresponding to an operation command is included in the lyrics of a certain song before performing a karaoke performance on the certain song. A detailed description of the configuration similar to that of the first embodiment will be omitted.

(Karaoke main unit software)
FIG. 6 is a diagram showing a software configuration example of the karaoke main body 10. The karaoke main body 10 according to the present embodiment includes a data storage unit 100, a specific unit 200, a first determination unit 300, a lyrics extraction unit 400, a comparison unit 500, a command control unit 600, and a second determination unit 700. The data storage unit 100 is provided as a part of the storage area of the storage unit 13. The specific unit 200, the first determination unit 300, the lyrics extraction unit 400, the comparison unit 500, the command control unit 600, and the second determination unit 700 are realized by the CPU 11a executing a program stored in the memory 11b. NS.

[Second judgment unit]
The second determination unit 700 determines in advance whether or not a keyword is included in the lyrics of a certain song before performing a karaoke performance on the certain song.

If the lyrics of a certain song do not contain a keyword corresponding to the operation command, the keyword may be input by voice even though the operation according to the operation command is not instructed when singing karaoke. There is no. That is, when the keyword is input by voice, it is appropriate to think that the singer is instructing the execution of the operation according to the operation command.

For example, suppose music X is registered in the reservation queue. In this case, the second determination unit 700 inputs the lyrics data of the music X by the time the karaoke performance of the music X is started (when the music X is registered in the reservation queue, when the music X is played karaoke next time, etc.). It is read from the storage unit 13 and it is determined whether or not any of the keywords stored in the data storage unit 100 is included in the reading. This determination can be made, for example, by the same method as the determination in the first determination unit 300 described in the first embodiment.

[Command control unit]
When it is determined that the keyword is not included in the lyrics of a certain song, the command control unit 600 according to the present embodiment invalidates the functions of the lyrics extraction unit 400 and the comparison unit 500, and starts from the same character as the keyword. When a predetermined character string is input by voice, the operation according to the operation command corresponding to the keyword is executed.

When a keyword corresponding to an operation command is included in the lyrics of a certain song, the keyword is input by voice even though the operation according to the operation command is not instructed when singing karaoke. Therefore, as described in the first embodiment, it is necessary to execute or prohibit the operation according to the operation command according to the processing result by the lyrics extraction unit 400 and the comparison unit 500. On the contrary, when the keyword corresponding to the operation command is not included in the lyrics of a certain song, the processing by the lyrics extraction unit 400 and the comparison unit 500 is unnecessary.

Therefore, when it is determined that the keyword is not included in the lyrics of a certain song, the command control unit 600 invalidates the functions of the lyrics extraction unit 400 and the comparison unit 500. That is, even if it is determined by the first determination unit 300 that the predetermined character string has been input by voice, the lyrics extraction unit 400 and the comparison unit 500 do not perform processing based on the determination result.

On the other hand, even if the lyrics of a certain song do not include a keyword, there is a possibility that an operation command is input by voice. Therefore, when it is determined that the keyword is not included in the lyrics of a certain song, the command control unit 600 corresponds to the keyword when a predetermined character string consisting of the same characters as the keyword is input by voice. Execute the operation according to the operation command to be performed.

For example, it is assumed that the second determination unit 700 determines that the lyrics of the music X do not include the keyword. After that, the song X is played in karaoke, and the singer sings karaoke.

At this time, the specifying unit 200 sequentially analyzes the voice input from the microphone 40 and specifies the characters input by the voice in time series. The first determination unit 300 determines whether or not a predetermined character string composed of the same characters as the keyword has been input by voice by comparing the specified character with the keyword. When a predetermined character string is input by voice, the command control unit 600 executes an operation according to an operation command corresponding to the same keyword as the predetermined character string.

== 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. 7. FIG. 7 is a flowchart showing an operation example of the karaoke device 1. In this example, it is assumed that a karaoke performance is reserved for the music X.

The second determination unit 700 determines in advance whether or not the keyword is included in the lyrics of the music X before performing the karaoke performance on the music X (determines the presence or absence of the keyword. Step 20). When it is determined that the keyword is not included in the lyrics of the song X (in the case of N in step 21), the command control unit 600 invalidates the functions of the lyrics extraction unit 400 and the comparison unit 500 (lyric extraction). Disable the functions of the section and the comparison section. Step 22). After that, the karaoke performance of the music X is started (start of the karaoke performance. Step 23).

The identification unit 200 sequentially analyzes the voice input from the microphone 40 in the singing section of the music X, and specifies the voice-input characters in time series (identification of the voice-input characters. Step 24).

The first determination unit 300 compares the character specified in step 24 with the keyword stored in the data storage unit 100 (comparing the specified character with the keyword. Step 25).

When a predetermined character string consisting of the same characters as the keyword is input by voice (in the case of Y in step 26), the command control unit 600 executes an operation according to the operation command corresponding to the keyword (execution of the operation). Step 27). The karaoke device 1 repeats the above process in each singing section until all the singing sections of the music X are completed (in the case of Y in step 28).

On the other hand, when it is determined that the keyword is included in the lyrics of the music X (in the case of Y in step 21), the karaoke device 1 executes the processes after step 10 of the first embodiment.

As is clear from the above, the karaoke device 1 according to the present embodiment is a second determination for determining in advance whether or not a keyword is included in the lyrics of a certain song before performing a karaoke performance on the certain song. It has a part 700. Then, when it is determined that the keyword is not included in the lyrics of a certain song, the command control unit 600 invalidates the functions of the lyrics extraction unit 400 and the comparison unit 500, and determines that the characters are the same as the keyword. When the character string is input by voice, the operation according to the operation command corresponding to the keyword is executed.

According to such a karaoke device 1, it is possible to determine whether or not a keyword corresponding to an operation command is included in the lyrics of a certain song before performing a karaoke performance on the certain song. Then, when the keyword corresponding to the operation command is not included in the lyrics of a certain song, the processing by the lyrics extraction unit 400 and the comparison unit 500 can be omitted. On the other hand, the karaoke device 1 can execute an operation according to the operation command corresponding to the keyword by inputting the keyword by voice in the singing section.

<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 Data storage unit 200 Specific unit 300 First judgment unit 400 Lyrics extraction unit 500 Comparison unit 600 Command control unit 700 Second judgment unit

Claims (2)

A data storage unit that stores operation commands for performing various operations related to karaoke performance in association with keywords,
A specific part that sequentially analyzes the voice input from the microphone in the singing section of a certain song and specifies the voice-input characters and their input timing in chronological order.
By comparing the specified character with the keyword, a first determination unit for determining whether or not a predetermined character string consisting of the same character as the keyword has been input by voice, and a first determination unit.
When the predetermined character string is input by voice, a lyrics extraction unit that extracts lyrics to be sung from the lyrics of the certain music in a predetermined period including the input timing of the characters constituting the predetermined character string. ,
A comparison unit that compares the extracted lyrics with the predetermined character string,
If the extracted lyrics and the predetermined character string do not match, an operation according to an operation command corresponding to the same keyword as the predetermined character string is executed, and the extracted lyrics and the predetermined character string match. In this case, a command control unit that prohibits operations according to the operation command corresponding to the same keyword as the predetermined character string, and
Karaoke device with. It has a second determination unit that determines in advance whether or not the keyword is included in the lyrics of the music before performing karaoke performance on the music.
When it is determined that the keyword is not included in the lyrics of the certain music, the command control unit invalidates the functions of the lyrics extraction unit and the comparison unit, and a predetermined character consisting of the same characters as the keyword. The karaoke device according to claim 1, wherein when the character string of is input by voice, an operation according to an operation command corresponding to the keyword is executed.

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