JP7161301B2 - karaoke system - Google Patents

Description

The present invention relates to karaoke systems.

Karaoke devices store tens of thousands of songs. A singer who sings karaoke selects a desired song via a remote control device. Specifically, on the song search screen displayed on the remote control device, the singer enters search requirements such as the name of the singer and the name of the song, and selects a song that she wishes to sing karaoke from among the songs that match the search conditions. select. The karaoke device registers songs selected by singers in a reservation queue and performs karaoke.

On the other hand, a singer who has finished singing karaoke of a certain song may find it difficult to decide which song to sing karaoke next. In order to solve such a problem, in the karaoke system, a technique for recommending an appropriate song to a singer is being studied. At this time, if it is possible to recommend a song with a range (pitch range set in the notes that make up the song) that fits the singer's vocal range (pitch range that the singer can utter), the singer will be comfortable You can enjoy karaoke singing at any time, and it may lead to an increase in your repertoire.

For example, in Patent Document 1, musical sound data of a musical piece to be performed is stored in association with the vocal range of the singing part of the musical piece, and a guidance sound is produced to guide the vocal input of the singer. The vocal range of the singer is considered by analyzing the singer's vocal range that can be sung by whether or not the pitch matches the guiding sound, and searching for songs that match the singer's vocal range. Also disclosed is a technique for selecting a piece of music that is less likely to break in the vocal range while being sung.

In addition, in Patent Document 2, songs sung by singers are recorded in a singing history management table for each singer, and each song of the singers recorded in the singing history management table is recorded with each original song key. Based on the vocal range of the song, calculate the vocal range of the singer with a predetermined algorithm, compare the calculated vocal range of the singer with the vocal range of the karaoke song, and compare the vocal range of the karaoke song with the vocal range of the singer included in the vocal range of each singer. By selecting karaoke songs with the following, a technique is disclosed that allows a singer to select songs that are likely to be sung well.

JP-A-9-212185 JP 2008-152169 A

By the way, when singing karaoke, some singers use not only their natural voice, but also false voices that are reversed from their natural voice. However, in the techniques of Patent Documents 1 and 2, no consideration is given to the use of fake voice. Therefore, when singing karaoke songs selected by this technology, even if the singer is singing in his natural voice, there is a problem that some singers have to sing in falsetto because the pitch is too high. may occur. In addition, there are singers whose vocal range of the natural voice and the vocal range of the fake voice are separated. In such a case, if the techniques of Patent Literature 1 and Patent Literature 2 are used, there is a possibility that a song that the singer cannot sing karaoke in the first place (a song having a vocal range outside the vocal range of the singer) is presented.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a karaoke system that recommends music in consideration of the vocal range of the vocalist and the fake vocal range.

The main invention for achieving the above object is the pitch of each note composing a piece of music, and a false voice flag attached to each note, which indicates whether or not to sing in false voice. A sound range specifying unit that specifies a range and a false voice range to be sung in the false voice for each song, a harmonic overtone ratio calculated at a predetermined sampling period based on voice data obtained by singing karaoke accompanying the karaoke performance of the song, and the karaoke A creation unit that creates voice information data that associates the elapsed time from the start of the performance to the time when the overtone ratio is calculated with the pitch of the voice data at the time when the overtone ratio is calculated, and a singer Based on the voice information data created according to karaoke singing, the vocal range that indicates the range of pitches that a certain singer can utter in his natural voice, and the pitch that can be uttered in false voice by the certain singer. A vocal range specifying unit that specifies a false voice range indicating a range, a false voice range and a local voice range for each song based on the instruction input from the certain singer, and a local voice range specified for the certain singer An extraction unit that compares the false voice range and extracts a song that includes the false voice range within the specified false voice range and the false voice range within the specified false voice range, and for the certain singer, and a presentation unit that presents the extracted songs as recommended songs.
Other features of the present invention will be clarified by the description of the specification and drawings described later.

According to the present invention, music can be recommended in consideration of the singer's natural vocal range and false vocal range.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the outline of the karaoke system which concerns on embodiment. It is a figure which shows the hardware structural example of the karaoke apparatus which concerns on embodiment. It is a figure which shows the hardware structural example of the server apparatus which concerns on embodiment. FIG. 10 is a diagram showing the number of ON/OFF false voice flags in a certain piece of music; It is a figure showing the original voice range and false voice range for each singer. It is the figure which showed the relationship between a singer's original voice range and false voice range, and the original voice range and false voice range of music. It is a flow chart which shows processing of a karaoke system concerning an embodiment.

<Embodiment>
A karaoke system 1 according to an embodiment will be described with reference to FIGS. 1 to 7. FIG.

== Karaoke System ==
As shown in FIG. 1, the karaoke system 1 includes a plurality of karaoke machines (karaoke machines K1 to Kn) and a server S. As shown in FIG. Each karaoke device and the server device S can communicate with each other via a network N. FIG. The network N is, for example, a transmission line such as a public telephone line network or Internet line.

==Karaoke Device==
A karaoke device is a device for karaoke performance of music and for singers to sing karaoke. Although the karaoke machine K1 will be described below, other karaoke machines have the same configuration.

As shown in FIG. 2, the karaoke machine K1 includes a karaoke main body 10, a speaker 20, a display device 30, a microphone 40, and a remote control device 50. As shown in FIG.

The speaker 20 is configured to emit sound based on the sound emission signal from the karaoke main body 10 . The display device 30 is configured to display video and images on the screen based on the signal from the karaoke main body 10 . The microphone 40 is configured to convert a singer's singing voice (input voice to the microphone 40 ) into an analog voice signal and input it to the karaoke main body 10 . 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 search for and select (reserve) a desired song for karaoke singing. Icons and the like for inputting instructions for various operations are displayed on the display screen of the remote control device 50 .

The karaoke main body 10 performs various controls related to karaoke singing, such as karaoke performance control of selected songs, display control of lyrics, background images, etc., and processing of audio signals input through the microphone 40 . As shown in FIG. 2 , the karaoke main body 10 includes a control section 11 , a communication section 12 , a storage section 13 , a sound processing section 14 , a display processing section 15 and an operation section 16 . Each configuration is connected to bus B via an interface (not shown).

The control unit 11 includes a CPU and memory (not shown). The CPU implements various control functions by executing operating programs stored in the memory. The memory is a storage device that stores programs to be executed by the CPU and temporarily stores various types of information during execution of the programs. In this embodiment, the control unit 11 functions as a creation unit 100 and a presentation unit 200 .

[Creation Department]
The creating unit 100 creates voice information data. The audio information data associates the overtone ratio, the elapsed time, and the pitch.

The overtone ratio is defined by the power of the frequency component on the vertical axis and the frequency on the horizontal axis. The area of the power of the frequency component of the fundamental frequency, which corresponds to the width of the frequency until the end of the "overtone frequency power" is defined as "centered on the peak of the frequency 2 to n times the fundamental frequency, "overtone frequency power/fundamental frequency power", where the width is defined as the sum of the areas of the power of the frequency components of the harmonic frequencies, whose width corresponds to the width of the frequency from the start of the peak to the end of the peak. (see JP-A-2012-194389). That is, it can be said that the overtone ratio is the frequency of overtones with respect to the frequency of the fundamental tone. Here, the frequency of the lowest frequency component when a signal based on the voice of a certain note is expressed by synthesizing sine waves is defined as the fundamental frequency. In this case, the pitch component of a certain note corresponds to the fundamental tone. A harmonic overtone is a sound component having a frequency that is an integral multiple of two or more of the frequency of the fundamental tone. In the present embodiment, the creating unit 100 calculates the overtone ratio at a predetermined sampling period based on the voice data obtained by singing karaoke accompanying the karaoke performance of the song. Therefore, a plurality of overtone ratios are calculated during karaoke performance of one piece of music. That is, one voice information data includes a plurality of overtone ratios.

The elapsed time is the time from the start of the karaoke performance to the calculation of the overtone ratio. The pitch associated with the overtone ratio and the elapsed time is the pitch indicated by the audio data at the time when the overtone ratio was calculated.

For example, when performing karaoke singing in the karaoke device K1, the singer A enters his or her singer ID and password through the remote control device 50 to log in to the karaoke system 1. Then, the singer A reserves karaoke singing of the song X via the remote control device 50 . The karaoke device K1 registers music X in a reservation queue and performs karaoke performance of music X according to the order. Singer A sings karaoke song X along with karaoke performance.

In this case, the creating unit 100 calculates the overtone ratio R1 at a predetermined sampling period (for example, 20 ms) based on the voice data obtained by the singer A singing karaoke. Further, the creating unit 100 obtains the elapsed time T1 up to the calculation of the overtone ratio R1 and the pitch P1 of the voice data at the time when the overtone ratio R1 is calculated, and creates data d1 associated with the overtone ratio R1. do. The creating unit 100 calculates the overtone ratio Rn (n is the number of times of sampling) at a predetermined sampling cycle until the karaoke singing of the song X is completed. Then, the creating unit 100 creates data dn in which the calculated overtone ratio Rn is associated with each of the elapsed time Tn and the pitch Pn (n is the number of times of sampling). After the karaoke performance of the song X is completed, the creation unit 100 puts together the data d1 to dn and creates voice information data DX when the singer A sings the song X in karaoke. The creating unit 100 associates the created voice information data DX with the singer ID of the singer A and transmits it to the server device S.

[Presentation part]
The presentation unit 200 presents the extracted song as a recommended song to a certain singer.

A recommended song is a song that recommends karaoke singing to a certain singer. The recommended music corresponds to music extracted by the extraction unit 500 of the server device S (details will be described later).

The recommended music is presented, for example, by displaying the music title and music ID of the recommended music on the display screen of the remote control device 50 .

In addition, when there are a plurality of extracted songs, the presentation unit 200 may present only some of the songs as recommended songs to the singer. For example, the presentation unit 200 presents a song that has been sung in karaoke in the past (or a song that has never been sung in karaoke) among the plurality of extracted songs based on the singing history of the singer as a recommended song. may

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

The storage unit 13 is a large-capacity storage device that stores various data, such as a hard disk drive. The memory|storage part 13 memorize|stores the music data distributed from the server apparatus S, and the singing history of a singer, for example. Music data is distributed periodically (for example, once a week). Also, the singing history is transmitted from the server device S when the singer logs in to the karaoke system 1 via the remote control device 50 . Note that the music data may not be stored in the storage unit 13 in advance, and may be downloaded from the server device S each time a karaoke performance is performed.

Under the control of the control unit 11 , the sound processing unit 14 controls karaoke performance of music and processes singing voice signals input through the microphone 40 . The display processing unit 15 performs processing related to various displays on the display device 30 and the remote control device 50 under the control of the control unit 11 . For example, the display processing unit 15 causes the display device 30 to display an image in which lyric telops and various icons are superimposed on a background image during a karaoke performance. Alternatively, the display processing unit 15 causes the display screen of the remote control device 50 to display various icons for operation input. The operation unit 16 consists of a panel switch, a remote control receiving circuit, and the like, and transmits operation signals such as a music selection signal and a performance stop signal to the control unit 11 according to the operation of the panel switch of the karaoke device K1 or the remote control device 50 by the singer. Output. The control unit 11 detects an operation signal from the operation unit 16 and executes corresponding processing.

== server device ==
The server device S is a computer that manages various information related to the karaoke machine and processes data transmitted from the karaoke machine. FIG. 3 is a diagram showing a hardware configuration example of the server device S. As shown in FIG. The server device S includes a storage unit 60 , a communication unit 70 and a control unit 80 . Each configuration is connected to bus B via an interface (not shown).

[Memory part]
The storage unit 60 is a large-capacity storage device that stores various data. The storage unit 60 stores a plurality of songs (song data) for performing karaoke performances in each karaoke device. The song data is given a song ID (identification information) for specifying each song. The music data includes accompaniment data, reference data, lyrics telop data, background image data, and music attribute information (music title, singer name, lyricist/composer name, genre, and other information related to music). A predetermined key (default key) is set for each piece of music.

The reference data is data indicating the contents of the melody to be sung in the music. Reference data consists of multiple notes. A predetermined pitch is set for each note. In addition, in this embodiment, each note is attached with a fake voice flag. The falsetto flag indicates whether a certain note should be sung in falsetto. Specifically, when the singer of a song sings a certain note in his or her natural voice, the fake voice flag of the certain note is set to "OFF". Conversely, when the singer of the song sings another note in false voice, the false voice flag of the other note is set to "ON".

The storage unit 60 stores the vocal range and false voice range of each singer, the natural voice range and false voice range of each song (details of both will be described later), or the singing history of each singer.

[Communication]
The communication unit 70 provides an interface for connecting the server device S and each karaoke device.

[Control section]
The control unit 80 performs various controls in the server device S. FIG. The control unit 80 includes a CPU and memory (both not shown). In this embodiment, the control unit 80 functions as a vocal range specifying unit 300 , a vocal range specifying unit 400 and an extracting unit 500 .

(Sound range specifying part)
The vocal range specifying unit 300 sings in the vocal range and false voice that should be sung in the natural voice based on the pitch of each note that constitutes the music and the false voice flag attached to each note that indicates whether or not the false voice should be sung. A fake vocal range to be used is specified for each piece of music.

The “local voice range” is the range of pitches sung in the natural voice by the singer who sings the song. The “fake voice range” is the range of pitches in which the singer singing the song sings in the false voice.

Each time a new piece of music is added to the storage unit 60, the vocal range specifying unit 300 specifies the original voice range and false voice range of the new song.

Specifically, the range identifying unit 300 refers to the reference data of the new music piece, and determines the pitches of all notes whose fake voice flags are "OFF" and all notes whose fake voice flags are "ON". Extract each pitch. FIG. 4 shows the number of flags for each pitch of the music specified by the music ID "1234-56". For example, for the note of pitch "C5", the fake voice flag "ON" is "15" and "OFF" is "22".

The vocal range identifying unit 300 identifies the range from the lowest pitch to the highest pitch of the extracted pitches with the fake false voice flag of "OFF" as the vocal range of the song. In the example of FIG. 4, the range identifying unit 300 identifies the range from pitch "B3" to pitch "D5" as the vocal range of the music identified by the music ID "1234-56".

Further, the vocal range identifying unit 300 identifies the range from the lowest pitch to the highest pitch of the extracted pitches for which the fake voice flag is "ON" as the fake voice range of the song. In the example of FIG. 4, the range identifying unit 300 identifies the range from pitch "B4" to pitch "G5" as the false voice range of the music identified by the music ID "1234-56". Note that there are not only songs in which the local voice range and false voice range partially overlap, as in the example of FIG. 4, but also songs in which the local voice range and false voice range do not overlap.

The vocal range identifying unit 300 associates the identified vocal vocal range and false vocal vocal range with the music ID and stores them in the storage unit 60 .

(Vocal range identification part)
The vocal range identification unit 400 identifies the vocal range and false vocal range of a certain singer based on the voice information data created according to the karaoke singing of the singer.

"Local vocal range" indicates the range of pitches that a singer can produce in her natural voice, and is the range from the lowest pitch to the highest pitch in a singer's natural voice. . The ``false voice range'' indicates the range of pitches that a singer can utter in false voice, and is the range from the lowest pitch to the highest pitch in false voice of a certain singer. Note that the technology described in Japanese Patent Application Laid-Open No. 2012-194389 can be used to specify the base voice range and false voice range.

For example, suppose that the voice information data DX and the singer ID of the singer A are transmitted from the creating unit 100 of the karaoke machine K1. In this case, the vocal range specifying unit 400 compares the pitch of each data dn included in the voice information data DX to the voice distribution table, which is a two-axis coordinate system table in which the vertical axis is the overtone ratio and the horizontal axis is the pitch. and the points identified by the harmonic ratios. Of the set of plotted points, the vocal range identifying unit 400 determines a region in which pitches are distributed from relatively low to medium pitches and overtone ratios are evenly distributed from low to high. Identify it as the region corresponding to the voice. On the other hand, among the set of plotted points, the vocal range identification unit 400 associates a region in which pitches are distributed from middle to relatively high pitches and overtone ratios are distributed from low to middle to false voices. identified as an area to

Then, in the area corresponding to the specified natural voice, the vocal range identifying unit 400 sets the lowest pitch Pv _low that can be sung by singer A with the natural voice as the pitch located at the leftmost end, and the pitch located at the rightmost end. High is the highest pitch Pv _high that can be sung by singer A in his natural voice, and the range from pitch Pv _high to pitch Pv _low is specified as vocal range of singer A. In addition, the vocal range specifying unit 400 sets the pitch located at the leftmost position in the region corresponding to the specified fake voice to the lowest pitch Pf _low that can be sung by singer A in false voice, and the pitch located at the rightmost end. The highest pitch Pf _high that can be sung by the singer A in false voice is specified, and the range from the pitch Pf _high to the pitch Pf _low is specified as the false voice range of the singer A.

The vocal range specifying unit 400 associates the specified vocal range and false vocal range with the singer ID of the singer A and stores them in the storage unit 60 . FIG. 5 shows an example of the original voice range and false voice range of each singer stored in the storage unit 60. As shown in FIG. In FIG. 5, for example, the lowest pitch Pv _low that singer A can sing in his natural voice is "B3", and the highest pitch Pv _high that singer A can sing in his natural voice is "A#4 , the lowest pitch Pf _low at which singer A can sing in false voice is "C5", and the highest pitch Pf _high at which singer A can sing in false voice is "F5".

Note that the vocal range identifying unit 400 can identify the original vocal range and the fake vocal range based on a plurality of pieces of voice information data created according to a certain singer singing karaoke a plurality of times.

For example, in the above example, if there is a plurality of voice information data of singer A, the creating unit 100 of karaoke device K1 associates all the voice information data with singer A's singer ID and transmits them. In this case, the vocal range specifying unit 400 plots the points specified by the pitches and overtone ratios of each data dn included in all the voice information data on the above-described voice distribution table. After that, the vocal range identifying unit 400 identifies the original vocal range and the fake vocal range of the singer A by performing the same processing as described above.

(Extraction part)
The extraction unit 500 compares the false voice range and the false voice range of each piece of music with the false voice range and false voice range specified for a certain singer based on an instruction input from a certain singer, and extracts the specified false voice. To extract a piece of music in which a vocal range includes a natural voice range and a specified false voice range includes a false voice range.

For example, suppose that singer A, who has already specified his own vocal range and fake vocal range, wants a recommendation of a song that matches his vocal range (vocal range matching song recommendation) when using the karaoke device K1.

In this case, singer A inputs his or her singer ID or the like via remote control device 50 and logs into karaoke system 1 . After that, singer A selects an icon displayed on the screen of remote control device 50 and instructs the start of vocal range matching recommendation.

The extracting unit 500 reads the data of singer A's original vocal range and fake vocal range from the storage unit 60 based on singer A's singer ID. Here, it is assumed that singer A's natural vocal range ranges from pitches B3 to A#4, and his false vocal range ranges from pitches C5 to F5 (see FIG. 5).

The extraction unit 500 compares the read vocal range and false voice range of the singer A with the local voice range and false voice range for each piece of music stored in the storage unit 60 . Then, the extracting unit 500 extracts songs that meet predetermined conditions. The predetermined conditions are that the specified vocal range includes the original voice range and that the specified false voice range includes the false voice range.

FIG. 6 is a diagram showing the relationship between the vocal range and false voice range of singer A and the natural voice range and false voice range of songs M1 to M3.

In FIG. 6, the natural voice range of the song M1 (range of pitches C4 to A4) is included in the vocal range of the singer A (range of pitches B3 to A#4), and the false voice range of the song M1 ( The range of pitches C#5 to E5) is included in singer A's false vocal range (range of pitches C5 to F5). Therefore, the extraction unit 500h extracts the music piece M1 as a piece of music that meets the predetermined condition.

On the other hand, there are also songs that have a vocal range or falsetto vocal range that is out of the natural voice range or falsetto voice range of the singer A, such as the tune M2 and the tune M3. Since such songs do not meet the predetermined conditions, the extraction unit 500 does not extract any songs.

The extraction unit 500 transmits the music ID of the extracted music M1 to the karaoke machine K1 used by the singer A. The presentation unit 200 of the karaoke device K1 displays the extracted song M1 as a recommended song on the screen of the remote control device 50 based on the received song ID.

Note that the extracting unit 500 can shift the keys of the songs so that the original and false voice ranges of each song are closer to the specified original and false voice ranges and compare them. In this case, the extracting unit 500 associates information about the shifted key with the extracted song and transmits the information to the karaoke machine. When presenting recommended songs, the presenting unit 200 can also present recommended keys for karaoke singing based on information on key shift amounts (shift amounts from default keys).

==About the processing in the karaoke system==
Next, a specific example of processing in the karaoke system 1 according to this embodiment will be described with reference to FIG. FIG. 7 is a flow chart showing an example of processing in the karaoke system 1. As shown in FIG. In this example, it is assumed that the storage unit 60 of the server device S stores the original voice range and false voice range specified for each piece of music.

The karaoke device K1 performs a karaoke performance of the song X reserved by the singer A (karaoke performance, step 10). Singer A sings karaoke song X along with karaoke performance.

The creating unit 100 of the karaoke device K1 calculates the overtone ratio calculated at a predetermined sampling period based on the voice data obtained by karaoke singing of the song X, and the overtone ratio from the start of the karaoke performance of the song X to the time when the overtone ratio is calculated. The voice information data is created by associating the elapsed time with the pitch of the voice data at the time when the overtone ratio was calculated (creation of voice information data, step 11). The creating unit 100 transmits the voice information data created in step 11 to the server device S (transmission of voice information data; step 12).

Based on the voice information data created in step 11, the vocal range specifying unit 400 of the server device S determines the vocal range that indicates the range of pitches that can be uttered by singer A in his natural voice, and A false voice range indicating the range of pitches that can be uttered is specified (identification of the original voice range and false voice range, step 13).

Here, it is assumed that the singer A instructs the start of vocal range matching recommendation via the remote control device 50 (recommendation instruction input, step 14).

The extraction unit 500 of the server device S compares the false voice range and the false voice range for each song stored in the storage unit 60 with the false voice range and the false voice range of the singer A identified in step 13, and identifies A piece of music whose original vocal range is included in the identified original vocal range and whose false voice range is included in the identified fake voice range is extracted (music extraction, step 15). The extraction unit 500 transmits the music ID of the extracted music to the karaoke apparatus K1 (sends the music ID of the extracted music, step 16).

The presentation unit 200 of the karaoke machine K1 presents the song extracted in step 15 as a recommended song to the singer A based on the song ID transmitted in step 16 (recommended song presentation, step 17).

In this way, the karaoke system 1 according to the present embodiment sings in the original voice based on the pitch of each note constituting a song and the false voice flag attached to each note indicating whether to sing in false voice. A vocal range specifying unit 300 that specifies for each song the original vocal range and false voice range that should be sung in the false voice, and the overtone ratio calculated at a predetermined sampling period based on the voice data obtained by singing karaoke accompanying the karaoke performance of the song. and a creating unit 100 that creates voice information data in which the elapsed time from the start of the karaoke performance to the time when the overtone ratio is calculated and the pitch of the voice data at the time when the overtone ratio is calculated are associated. , Based on the voice information data created according to the karaoke singing of a certain singer, the vocal range that indicates the range of pitches that the certain singer can utter in the natural voice and the vocal range that the certain singer can utter in false voice Based on the vocal range specifying unit 400 that identifies the false voice range indicating the range of possible pitches, and the false voice range and the local voice range for each song based on the instruction input from a certain singer, the region specified for a certain singer An extraction unit 500 that compares the vocal range and the false voice range and extracts songs that include the false voice range within the specified false voice range and the false voice range within the specified false voice range, and a certain singer. and a presenting unit 200 that presents the extracted music as a recommended music.

The identified vocal range and fake voice range correspond to the range of pitches in which the singer can utter the natural voice and fake voice without difficulty. Therefore, for songs in which the original vocal range includes the original voice range and the false voice range includes the false voice range, the singer can also sing in the false voice for the part that the singer himself/herself sings in the false voice. The singer can also sing in a false voice for the part sung in . By presenting such songs as recommended songs, the singer can grasp songs that can be comfortably sung in karaoke. That is, according to the karaoke system 1 according to the present embodiment, it is possible to recommend music in consideration of the singer's natural voice range and fake voice range.

Also, the extracting unit 500 can shift and compare the keys of the songs so that the original voice range and false voice range of each song are closer to the specified original voice range and false voice range. By shifting the key and performing the comparison in this way, it is possible to extract songs that are closer to the singer's natural voice range and fake voice range.

Also, the vocal range identifying unit 400 can identify the original vocal range and the fake vocal range based on a plurality of pieces of voice information data created according to a certain singer singing karaoke a plurality of times. Not all pitches are included in one piece of music. Therefore, the original voice range and false voice range specified based on karaoke singing of one piece of music do not necessarily accurately indicate the range of pitches that the singer can sing. On the other hand, by using a plurality of pieces of voice information data, it is possible to more accurately specify the singer's original vocal range and fake vocal range.

<Others>
The karaoke apparatus may have the various configurations described in the above embodiments independently. That is, the karaoke machine may include not only the creating unit 100 and the presenting unit 200, but also the vocal range identifying unit 300, the vocal range identifying unit 400, and the extracting unit 500. In this case, the karaoke device corresponds to a "karaoke system".

For example, every time a new piece of music is distributed, the server device S transmits the music data of that piece of music to the karaoke machine K1. The vocal range specifying unit 300 specifies the original vocal range and false vocal range for the song, and stores them in the storage unit 13 . Also, the vocal range specifying unit 400 specifies the singer's vocal range and fake voice range based on the voice information data created by the creating unit 100 .

Here, assume that a certain singer selects an icon displayed on the screen of the remote control device 50 and instructs the start of vocal range matching recommendation.

The extraction unit 500 compares the false voice range and the false voice range for each piece of music stored in the storage unit 13 with the specified singer's false voice range and false voice range, and To extract a piece of music including a false voice range and a false voice voice range within a specified false voice voice range. The extraction unit 500 outputs the music ID of the extracted music to the presentation unit 200 . The presentation unit 200 presents the recommended song to the singer based on the output song ID.

The above embodiments are presented as examples and are not intended to limit the scope of the invention. The above configurations can be implemented in combination as appropriate, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. The above-described embodiments and modifications thereof are included in the invention described in the claims and their equivalents, as well as being included in the scope and gist of the invention.

1 karaoke system 100 creation unit 200 presentation unit 300 vocal range specifying unit 400 vocal range specifying unit 500 extraction unit K1 to Kn karaoke device S server device

Claims (3)

Based on the pitch of each note composing a piece of music and a fake voice flag attached to each note indicating whether or not to sing in the false voice, the vocal range to be sung in the original voice and the false voice range to be sung in the fake voice are determined. a range identifying unit that identifies each piece of music;
The overtone ratio calculated at a predetermined sampling period based on the voice data obtained by karaoke singing accompanying the karaoke performance of the song, the elapsed time from the start of the karaoke performance to the time when the overtone ratio is calculated, and the overtone ratio a creation unit that creates voice information data that is associated with the pitch of the voice data at the time of calculation;
Based on the voice information data created according to the karaoke singing of a certain singer, the vocal range that indicates the range of pitches that the certain singer can utter in the natural voice and the vocal range that the certain singer can utter in false voice A vocal range identifying unit that identifies a false vocal range that indicates a range of pitches,
Based on the instruction input from the certain singer, the fake voice range and the local voice range for each song are compared with the local voice range and fake voice range specified for the certain singer, and within the specified local voice range an extraction unit that extracts a song that includes a false voice range in the specified false voice range and that includes a false voice range within the specified false voice range;
A presentation unit that presents the extracted song as a recommended song to the certain singer;
karaoke system. 2. The extraction unit shifts and compares the keys of the music so that the original voice range and the false voice range of each music piece are close to the specified original voice range and false voice range. karaoke system. The vocal range identifying unit identifies the original vocal range and the fake vocal range based on a plurality of the voice information data created according to the karaoke singing of the certain singer a plurality of times. 3. The karaoke system according to 1 or 2.

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