JP4375810B1 - Karaoke host device and program - Google Patents

Abstract

The present invention provides a karaoke host device and the like that can indicate an index of whether or not a karaoke user can sing a target song that has not yet been sung, such as a new song.
A karaoke host device that divides all ranges used in karaoke into a plurality of stages according to the singing level of the user based on information about the singing level for each pitch of the user, And means for determining a correction coefficient for each divided stage, means for obtaining music data for a song for which a singable index is to be calculated, and for each pitch included in the range of each stage of the user First computing means for obtaining a total value of sound lengths; second computing means for obtaining a value obtained by multiplying a value obtained by the first computing means by a correction coefficient determined for each stage of the user; Means for calculating the user's singable index by dividing the sum of the values of each stage obtained by the second computing means by the sum of the values of each stage obtained by the first computing means. .
[Selection] Figure 1

Description

  The present invention relates to a karaoke host device and a program that indicate whether or not karaoke music that has not yet been sung can be sung by a user based on music data of karaoke music and singing history of a karaoke user.

  Currently, many new songs have been announced, and those songs can be sung one after another at karaoke. However, even if new songs are announced, there is a problem that it is not possible to know whether those songs can be sung by karaoke users without actually singing.

  The karaoke terminal has a key changing function for shifting the pitch of the performance of the karaoke music according to the range where the singer can speak. However, it is difficult to set this key change function unless the singer himself / herself has a sufficient grasp of the range that can be spoken. For this reason, the key change setting is usually repeated many times to find a key setting value suitable for the user. Therefore, even if it seems that singing is possible if the key is changed, there is a problem that it is not immediately known how much the key should be changed.

Therefore, a method for analyzing whether or not a user can sing karaoke music is provided.
For example, for the purpose of providing a method for analyzing the singing range of karaoke software in advance, a method for analyzing the singing range of karaoke software with main melody expressed in electronic score format, There is provided a singing range analysis method for extracting the main melody from the electronic musical score data of karaoke software and creating singing range data by aggregating pitch information and length information of all notes constituting the main melody. (See Patent Document 1).

JP 2002-108373 A

However, even though the singing range data has been created, since the degree to which each user can actually sing is not indexed, new songs and other target songs that have not yet been sung are There is a problem that it is not clear whether singing is possible.
By the way, the sound range of each user hardly changes unless there is a change due to growth or aging such as voice change. However, it is difficult for a general karaoke user to accurately grasp his / her own range unless he / she examines information on his / her range in advance or has an absolute pitch.
Moreover, it is difficult to determine in advance whether the target music can be sung if the key is changed. In other words, there is no way to increase your repertoire by knowing what other songs can be sung at your own singing level.

  Accordingly, an object of the present invention is to provide a karaoke host device and a program that can indicate an index of whether or not a karaoke user can sing a target song that has not yet been sung, such as a new song.

  In order to solve the above-mentioned problems, the present invention is a karaoke host device that extracts main melody music data from music data of karaoke music, calculates the total length of each main melody pitch, and creates a database. Based on the information on the main melodic database and the singing level for each pitch of the karaoke user, all the ranges used in karaoke are divided into a plurality of stages according to the singing level of the user, and divided. Stage division means for determining a correction coefficient for each stage, and target music data acquisition for acquiring music data of a music for which a singable index is calculated from among the music data databased by the main melody database creation means And the music data acquired by the target music data acquisition means, for each pitch included in the range of each stage of the user A first computing means for obtaining a total value of the length; a second computing means for obtaining a value obtained by multiplying a value obtained by the first computing means by a correction coefficient determined for each stage of the user; Singable index calculating means for calculating the singer possible index of the user by dividing the sum of the values of each stage obtained by the second computing means by the sum of the values of each stage obtained by the first computing means. And the value of the correction coefficient decreases with increasing distance from the highest level of the user's singing level.

Moreover, this karaoke host device has the following characteristics.
That is, the range obtained by multiplying the range of each stage determined by the stage dividing means by the correction coefficient determined for each stage is totaled for all stages, thereby obtaining the range that can be sung by the user. Determination to acquire the range of the remaining music data excluding the music data that does not satisfy the predetermined condition from the highest sound or the lowest sound in order from the music data acquired by the target music data acquisition means and the target music data acquisition means A sound range width for determining whether or not a sound range width that can be sung by the user acquired by the user sound range width acquiring unit is larger than a sound range width for determination acquired by the sound range width acquiring means for determination The determination unit is further provided.

  In addition, the music data acquired by the target music data acquisition unit has been changed to the music data acquisition unit after change to acquire music data after appropriately changing the key, and the key acquired by the music data acquisition unit after change has been changed. A post-change singable index calculating means for calculating a singable index by the singable index calculating means is further provided for later music data.

  Further, the information about the user's singing level in the stage dividing means is for each pitch of the main melody that is databased by the main melody database making means for all or a part of karaoke songs having a history of singing by the user. It is obtained based on the total value of the sound length.

  In addition, the information about the user's singing level in the stage division means is a karaoke terminal installed on the karaoke shop side connected to the karaoke host device via a communication line or a usage installed on the karaoke user side. Based on the result of comparing the voice data input to the microphone by the user in response to a plurality of pitches output from the user terminal based on the note data and the sound data output from the karaoke terminal or the user terminal. This is what was requested.

  Further, information on the user's singing level in the stage division means is output based on musical note data from a user terminal installed on the karaoke user side connected to the karaoke host device through a communication line. It is obtained based on the information about the utterance level input by the user through the input unit of the user terminal according to the plurality of pitches.

  Further, the present invention is a computer program for extracting music data of main melody from music data of karaoke music into a computer provided in a karaoke host device, and calculating a total length of each pitch of the main melody to create a database Based on the information on the melody database function and the singing level for each pitch of the karaoke user, all the ranges used in karaoke are divided into a plurality of stages according to the singing level of the user, and divided Target music data for acquiring music data for a music for which a singable index is calculated from among the music data databased by the stage division function for determining the correction coefficient for each stage and the main melody database function For the music data acquired by the acquisition function and the target music data acquisition function, each step of the user A value obtained by multiplying a value obtained by the first calculation function by a correction coefficient determined for each stage of the user. And the user's singing by dividing the sum of the values of each stage obtained by the second computation function by the sum of the values of each stage obtained by the first computation function A singable index calculating function for calculating a possible index is realized, and the value of the correction coefficient decreases as the distance from the highest singing level of the user increases.

Moreover, this program has the following features.
That is, the range obtained by multiplying the range of each stage determined by the stage division function by the correction coefficient determined for each stage is totaled for all stages, thereby obtaining the range in which the user can sing. To obtain the range of the remaining music data excluding the music data that does not satisfy the predetermined condition in order from the highest sound or the lowest sound, from the music data acquired by the user sound range acquisition function and the target music data acquisition function A sound range width for determining whether or not the user's singable range acquired by the user range acquisition function and the user range acquisition function are larger than the determination range acquired by the determination range acquisition function The judgment function is further realized.

  In addition, the music data acquired by the target music data acquisition function is changed, the music data acquisition function after change to acquire music data after changing the key as appropriate, and the key acquired by the music data acquisition function after change is changed. For later music data, a post-change singable index calculation function for calculating a singable index by the singable index calculation function is further realized.

  In addition, the information about the singing level of the user in the stage division function is for each pitch of the main melody databased by the main melody database function for all or a part of karaoke songs having a history of singing by the user. It is obtained based on the total value of the sound length.

  In addition, the information about the user's singing level in the stage division function is a karaoke terminal installed on the karaoke shop side connected to the karaoke host device via a communication line or a usage installed on the karaoke user side. Based on the result of comparing the voice data input to the microphone by the user in response to a plurality of pitches output from the user terminal based on the note data and the sound data output from the karaoke terminal or the user terminal. This is what was requested.

  In addition, information on the user's singing level in the stage division function is output based on musical note data from a user terminal installed on the karaoke user's side connected to the karaoke host device via a communication line. It is obtained based on the information about the utterance level input by the user through the input unit of the user terminal according to the plurality of pitches.

First, according to the karaoke host device and the program of the present invention, it is possible to indicate an index of how much the karaoke user can sing about the target music. Therefore, when a new karaoke song comes out or a user wants to challenge a song that has never been sung, it is possible to determine whether the song can be sung by the user by looking at the singable index. There is an effect that it understands.
Secondly, when the user sings with the key changed, the singable index after the key change can be easily understood, so that the key can be changed to a position where the singable index is high.
Third, since it is easy for the user to know whether or not a target song such as a new song can be sung, there is also an effect that his / her repertoire in karaoke can be easily increased.

It is explanatory drawing which showed the whole system structure of this application. It is explanatory drawing of the hardware constitutions of the karaoke terminal. It is explanatory drawing of the example of the sound range divided | segmented into the several step in the user individual unit. It is a specific example of population information in the case of determining a user's stage based on an average pitch and a standard deviation. It is a specific example of population information in the case of determining a user's stage based on the central pitch and the appearance rate. It is a specific example at the time of calculating the singable index of the target music. It is explanatory drawing of the example which determines whether it is possible to sing based on a user's range.

  The present invention provides a karaoke host device and a program that can indicate an index of whether or not a karaoke user can sing a target song that has not yet been sung, such as a new song.

Embodiments of the present invention will be described in detail below with reference to the drawings.
FIG. 1 is an explanatory diagram showing the overall system configuration of the present application. A karaoke terminal 3 installed on the karaoke shop side and a user terminal 4 installed on the karaoke user side are connected via the communication line 2. It is connected to a karaoke host device 1 installed on the karaoke business side.
In the system configuration shown in FIG. 1, the karaoke host device 1, the karaoke terminal 3, and the user terminal 4 are all shown as one, but there may be a plurality of these. The communication line 2 can use various lines such as the Internet and a public telephone line.

Although not shown, the karaoke host device 1 stores a central processing unit including a CPU, a ROM, and a RAM, karaoke data including accompaniment music data of karaoke music, lyrics, and total length data for each pitch of main melody music data. A computer operated by a karaoke company provided with a karaoke database, a user database storing data such as karaoke user identification information and singing history information, and a communication control unit for controlling communication with the communication line 2 is there.
When the user requests the karaoke host device 1 to distribute karaoke data from the karaoke terminal 3, the central processing unit extracts the requested karaoke data from the karaoke database and sends it to the communication line 2 via the communication control unit. Karaoke data is distributed from the host device 1 to the karaoke terminal 3. The central processing unit of the karaoke host device 1 also processes various information such as operation logs uploaded from the karaoke terminal 3. Further, singing history information for each user is collected from the karaoke terminal 3 at an appropriate opportunity and stored in the user database.

FIG. 2 is an explanatory diagram of the hardware configuration of the karaoke terminal 3. The karaoke terminal 3 includes a central processing unit 11 including a CPU / ROM / RAM, an external storage unit 12 such as a hard disk or an optical disk, a user interface unit 13 for exchanging input from a user and a response to the user, and a communication line 2. Communication control unit 15 that communicates with the karaoke host device 1 via the video, video display unit 16 using a CRT / liquid crystal screen, a video processing unit 17 that processes video data to be displayed on the video display unit 16, MIDI format, etc. And an audio processing unit 19 for amplifying the accompaniment music data and the audio signal from the microphone 20 and outputting from the speaker 21.
The user interface unit 13 includes a main body operation panel of the karaoke terminal 3 and a remote control terminal 14 provided with infrared communication means for instructing karaoke music search, music selection, reproduction, and the like. .

  Although not shown, the user terminal 4 includes a central processing unit including a CPU / ROM / RAM, a display unit using a CRT / liquid crystal screen, an input unit such as a keyboard / mouse / microphone, a speaker / headphone, and the like. The information processing device includes an output unit, a communication control unit that controls communication with the communication line 2, and the like includes a personal computer, a mobile phone, a PHS, a PDA, and the like.

First, a description will be given of a database unit for the main melody of a music unit.
In this method, main melody data is extracted from music data of karaoke music pieces, and a total pitch is calculated for each pitch of the main melody data in units of music pieces and is made into a database.
Specifically, in the case of MIDI, the main melody data is extracted from the MIDI file, the total pitch is calculated for each pitch of the main melody data, and a database is created for each musical piece. Thus, it can be understood how long each pitch included in the main melody data is output in the music.
In the case of MIDI, the sound length data is used in units of 1/1000 second. In other cases, the sound length is determined by the number of beats and the tempo. Calculate the note length.

Next, a description will be given of means for dividing all sound ranges used in karaoke on a user-by-user basis into a plurality of stages based on information on the user's singing level.
The information regarding the user's singing level in the present embodiment is acquired from the singing history of the user's karaoke music. Specifically, first, singing history data for each user collected from each karaoke terminal 3 and stored in the user database of the karaoke host device 1 together with identification information such as a user-specific membership number, that is, Data on karaoke music with a history of singing by the user is acquired.
The singing history data is not limited to the case where the karaoke host device 1 automatically collects and stores the song data sung by the user from each karaoke terminal 3 and stores it in the user database. The input part of the user terminal 4 directly inputs the identification information of a song that has been sung by the user, transmits the information to the karaoke host device 1 via the communication line 2 and stores it in the user database. It may be the case. In addition, when the karaoke song is sung by changing the key, information related to the key change, for example, information such as singing with one key raised is stored in the user database together with the identification information of the song. To do.

Furthermore, the information regarding the user's singing level in the present embodiment is not limited to acquiring all karaoke songs having the user's singing history, but targets a part of karaoke songs having the singing history. You may get as.
Specifically, the user inputs identification information of a piece of music that the user wants to be excluded when determining the stage among the pieces of music having a history of singing by the user using the input unit of the remote control terminal 14 or the user terminal 4. Then, the information is transmitted to the karaoke host apparatus 1 via the communication line 2 and stored as a desired music piece that is not a target in the user database. And in order to determine a user's stage, when acquiring the data regarding the karaoke music which has the history of singing from a user database, it excludes and acquires the data of the music which is not a target. As a result, the user can deal with a case such as “Since this song was sung from the beginning to the end, I would like to exclude it from the target song when determining my stage.” The stage can be determined.

Next, main melody data is extracted from music data such as MIDI stored in the karaoke database for karaoke music with a singing history of the user as a target when determining the stage of the user. And the total value of the sound length for every pitch is calculated for the main melody data of all the extracted music pieces. In addition, in the case of a musical piece in which there is a record that the user has sung by changing the key in the user database, the pitch data after the key change is used.
Then, using the total value of the pitches for each pitch as information on the user's singing level, all the sound ranges used in karaoke are divided into a plurality of stages based on the information.
FIG. 3 is an explanatory diagram of an example of a sound range divided into a plurality of stages in units of individual users, and the lines of the music A, the music B, the music C, and the music D represent the sound range of each music. In the case of this user, there is a singing history of four songs, song A, song B, song C, and song D, and a high range of the singing level is set as stage A based on information related to the singing level, and from there a high direction or a low direction In the high-pitched sound direction, the sound is divided into seven steps, namely, a step B high sound, a step C high sound and a step D high sound, and a low sound direction, a step B low sound, a step C low sound and a step D low sound. However, the steps are not limited to these seven steps, and any number of steps may be used as long as the steps are divided into a plurality of steps.

FIG. 4 is a specific example of the population information in the case where the user's stage is determined based on the average pitch and the standard deviation. Here, it is assumed that the cumulative data of the MIDI main melody data of all songs having a singing history is a population, and the pitch distribution is a normal distribution. In the case of this user, the average pitch μ is a note number of about 66.52, and the standard deviation σ is about 2.83.
Here, the stage including the average pitch μ of the user's singing history data is assumed to be stage A, and the stage B treble / stage C treble / stage D treble as the distance from stage A increases in the treble direction, and conversely, the stage increases as the distance away from the bass A case where the sound is divided into B bass, stage C bass, and stage D bass will be described as an example. For example, in the case of FIG. 4, the range of μ ± 1.5σ is the stage A, the range of μ + 2σ is the stage B treble, the range of μ + 3σ is the stage C treble, and the range of μ−2σ is the stage B bass, μ− Step C bass is defined up to the range of 3σ.
As shown in the lower table of FIG. 4, the range of μ ± 1.5σ is a range of the note number from the lowest sound about 62.27 to the highest sound about 70.76, and the range of μ ± 2σ. Is a range from about 60.86 to about 72.17, and a range of μ ± 3σ is a range from about 58.03 to about 75.00.
Therefore, since all the musical ranges used in karaoke are expressed by an integer value of a note number when the music data is based on MIDI, in this case, the pitch 58 or lower is a stage D bass, and the pitch 59 to 60. Is stage C bass, pitch 61 to 62 is stage B bass, pitch 63 to 70 is stage A, pitch 71 to 72 is stage B treble, pitch 73 to 75 is stage C treble, pitch Stages are determined such that 76 or more are stage D trebles.

The method for determining the stage is not limited to the statistical method for calculating and calculating the average pitch and standard deviation, and other methods may be used.
For example, FIG. 5 is a specific example of the population information in the case where the user stage is determined based on the central pitch and the appearance rate. In this case, first, 66.5, which is the median value of the lowest pitch 59 and the highest pitch 74, is set as the central pitch, and the total pitch for each pitch is the total pitch of all pitches. The stage is determined based on the cumulative appearance rate obtained by accumulating the appearance rate for each pitch calculated by dividing by the distance from the central pitch in the direction of high pitch or low pitch.
Specifically, the range where the cumulative appearance rate is within 95% is stage A, the range where the cumulative appearance rate is over 95% and within 99% is stage B treble or stage B bass, and the cumulative appearance rate is over 99% for the first time 100% The range up to the pitch that has reached S is the stage C treble or stage C bass, and the pitch exceeding these ranges is the stage D treble or stage D bass.
Therefore, in the case of FIG. 5, the pitch 57 or lower is the stage D bass, the pitches 58 to 59 are the stage C bass, the pitches 60 to 61 are the stage B bass, and the pitches 62 to 70 are the stage A. Stages are determined such that highs 71 to 72 are stage B high sounds, pitches 73 to 74 are stage C high sounds, and pitches 75 and above are stage D high sounds.
In the method for determining a stage described above, the stage is divided by the same value in the high-pitched sound direction and the low-pitched sound direction, but the value is not limited to the same value, and may be a different value. For example, the range where the cumulative appearance rate is within 95% is set as stage A, and the range where the cumulative appearance rate is higher than 95% and within 99% in the high pitch direction reaches 100% for the first time with stage B high sound and the cumulative appearance rate exceeds 99%. Even if the range up to the pitch is stage C treble and the higher frequency range is higher than stage D treble, the cumulative appearance rate in the bass direction is more than 95% within 97% and stage B bass, and the cumulative appearance rate is over 97% A range up to a pitch that reaches 100% for the first time may be a stage C bass, and a bass range that exceeds it may be a stage D bass.

As mentioned above, after dividing all the sound ranges used in karaoke into a plurality of stages based on the singing level of each user, each correction coefficient is set for each stage.
As a specific method for setting the correction coefficient, it is assumed that stage A is sure to be sung and the correction coefficient is 100%, stage D treble and stage D bass are sure not to be sung, and the correction coefficients are each 0%. The correction coefficient for the stage B treble and the stage B bass is set to 75%, the correction coefficient for the stage C treble and the stage C bass is set to 50%, and the values in a range excluding 100% and 0% are set.
Of course, human voices are able to produce more high-pitched sounds by training, but low-pitched sounds cannot be produced much. In other words, it can be said that the lower sound is harder to sing. Accordingly, the correction coefficient is not limited to the same value in the high frequency range and the low frequency range. For example, the correction coefficient for the high sound portion is made larger than that for the low sound portion. The correction coefficient for bass sound is 70%, the correction coefficient for stage C treble is 60%, while the correction coefficient for stage C bass is 40%, etc., may be changed between the high sound range and the low sound range.
However, it is assumed that the value of the correction coefficient decreases with increasing distance from the stage A where the user's singing level is the highest in the high pitch direction or low pitch direction. In the above example, the correction coefficient for the stage C treble is smaller than the correction coefficient for the stage B treble, and similarly, the correction coefficient for the stage C treble is smaller than the correction coefficient for the stage B treble. To do.

Next, a means for calculating the singable index for the user's target music based on the total sound length at each stage in the target music and the correction coefficient at each stage will be described.
For example, in the case where the stage is divided into seven stages of stage A, stage B treble, stage C treble, stage D treble, stage B bass, stage C bass, stage D bass, the singable index of the target music A specific calculation formula is as follows.
Singable index = (total length of stage A × correction coefficient + total length of stage B treble × correction coefficient + total length of stage C treble × correction coefficient + total length of stage D treble × correction coefficient + stage B Total length of bass x correction coefficient + Stage C Total length of bass x Correction coefficient + Stage D Total length of bass bass * Correction coefficient) / (Total length of stage A + Total length of stage B treble + Stage C Total length of treble + total length of stage D treble + total length of stage B bass + total length of stage C bass + total length of stage D bass)
As described above, the first calculation means for obtaining the total value of the pitches of the pitches included in the range of the user's stage in the target music, and the value obtained by the first calculation means is the user's value. A second computing means for obtaining a value obtained by multiplying a correction coefficient determined for each stage; and a value for each stage obtained by the first computing means for a sum of values for each stage obtained by the second computing means. The user's singable index is calculated for each target song. The calculated singable index information is transmitted from the karaoke host device 1 to the karaoke terminal 3 or the user terminal 4 via the communication line 2, and is displayed to the user by the display unit of the karaoke terminal 3 or the user terminal 4. May be presented.

FIG. 6 is a specific example in the case where the singable index for several target songs is calculated. In this example, the correction factor of stage A is 100%, the correction coefficient of stage B treble and stage B bass is 75%, the correction coefficient of stage C treble and stage C bass is 50%, stage D treble and stage D bass. The singable index is calculated with a correction coefficient of 0%.
Further, in the rightmost column of FIG. 6, in order to present the singable index to the user in an easy-to-understand manner, the degree of singability of the target music is indicated by an index of the degree of singing based on the singable index.
For example, if the singable index is 1, the singable degree is 100%, if the singable index is 0.99 or more and less than 1, the singable degree is 90%, and the singable index is 0.98 or more and less than 0.99 80% for singing, 70% for singable index less than 0.97 and less than 0.98, 60% for singable 60% for singable index less than 0.96 and less than 0.97 When the index is 0.95 or more and less than 0.96, the degree of singing is 50%, when the singable index is 0.94 or more and less than 0.95, the degree of singing is 40%, and the singable index is 0.93 or more. If it is less than 94, the degree of singing is 30%, if the singable index is 0.92 or more and less than 0.93, the degree of singing is 20%, and if the singable index is 0.91 or more and less than 0.92, the degree of singing is 10%, if the singable index is less than 0.91, % Is transmitted to the karaoke terminal 3 or the user terminal 4 from the karaoke host device 1 via the communication line 2 and presented to the user by the display unit of the karaoke terminal 3 or the user terminal 4. To do.

Next, a description will be given of the determination means based on the range that can be sung by the user and the determination range of the target music.
First, the range of the range that can be sung by the user is obtained by summing the values obtained by multiplying the range of each step determined by the step dividing means by the correction coefficient determined for each step for all steps. To obtain the range of singing of the person.
For example, a case where the sound is divided into five stages of stage C bass, stage B bass, stage A, stage B treble, and stage C treble will be described. In this case, the range of the range expressed by the difference between the MIDI note numbers is 10 for stage A and 4 for stage B treble and stage B bass. Further, the correction coefficients at each stage are 100% for stage A, 50% for stage B treble and stage B bass, and 0% for stage C treble and stage C bass. In this case, the range of the singable range of the user is calculated as 10 × 100% + 4 × 50% + 4 × 50% = 14.
Next, from the music data acquired by the target music data acquisition means, the sound range width of the remaining music data excluding the music data that does not satisfy the predetermined condition in order from the highest sound or the lowest sound, that is, the determination sound range width is acquired.
For example, an example will be described in which the determination range is acquired on the assumption that the average pitch of the target music is μ, the standard deviation is σ, and music data in the range of μ ± 3σ is targeted. In this case, if the highest and lowest sounds of the target music are both outside the range of μ ± 3σ, music data in the range from the lowest sound to less than μ-3σ and music in the range from μ + 3σ to the highest sound. Data is excluded as not satisfying the predetermined condition. Then, for the music data after exclusion, that is, music data in the range of μ ± 3σ, the difference between the note numbers of the lowest sound and the highest sound is obtained as the determination range.
Next, it is determined whether or not the user's singable range is larger than the determination range, and the determination information is transmitted from the karaoke host device 1 to the karaoke terminal 3 or the user terminal 4 via the communication line 2. To the user via the display unit of the karaoke terminal 3 or the user terminal 4.

  Note that the determination is not limited to whether or not the sound range width that the user can sing is larger than the sound range width for determination. For example, FIG. 7 is an explanatory diagram of an example in which whether or not the target music can be sung by the user is divided into three cases using the user's singable sound range and the target sound range for determining the target music. It is determined whether or not the user can sing the target music, and how much the key can be changed when the user can sing, or whether or not singing is possible. In addition, the length of the top dotted line in FIG. 7 represents the range of the user's singing range, and the length of the solid line in case 1, case 2 and case 3 represents the range of determination for each target song. Yes.

First, if the user's singable range is larger than the determination range of the target music and the singable index is within a predetermined range (for example, 0.95 or more), it is determined that the user can sing with the same key. This is the case. In FIG. 7, case 1 corresponds to the case where the highest key and the lowest sound of the determination range of the target music can be sung together with the original key, and the sound falls between the high level C and the low level C.
Second, if the user's singable range is larger than the determination range of the target music and the singable index is outside a predetermined range (for example, less than 0.95), how much the key should be changed. This is a case where it is determined that singing is possible. In this case, you cannot sing with the original key. However, since the range of the range that can be sung by the user is within the range of the range of the target music, singing is possible if the key is changed. In FIG. 7, case 2 corresponds to the case where the key is lowered to enter the sound range of the approximate stage A.
3rd is a case where it determines with a user not being able to sing, when the range which can be sung is smaller than the range for determination of the object music. In FIG. 7, Case 3 corresponds, and the determination range of the target music exceeds the range that can be sung by the user, indicating that this music cannot be sung by the user.

Moreover, when determining, the singable index after the key change when the song to be determined is sung by changing the key is calculated, and the calculated singable index after the key change is karaoke via the communication line 2 You may transmit to the karaoke terminal 3 or the user terminal 4 from the host apparatus 1, and you may show to a user by the display part of the karaoke terminal 3 or the user terminal 4. FIG.
For example, in the case of the first, second, or third determination, each singable index after the key change when the target music is sung by changing a plurality of keys is shown in the case of music I in FIG. As shown, it is calculated for each of a plurality of candidate keys, and the calculated singable index is presented to the user.

  An object of the present invention is to supply a software program for realizing the functions of the first embodiment to a system or apparatus, and for the computer of the system or apparatus to read and execute the software program recorded on a storage medium. Is also achieved.

  In this case, the program itself read from the storage medium realizes the novel function of the present invention, and the program and the storage medium storing the program constitute the present invention.

  As a storage medium for recording the software program, for example, a hard disk, an optical disk, a magneto-optical disk, a CD-ROM, a CD-R, a magnetic tape, a nonvolatile memory card, a ROM, or the like can be used.

  Further, after the program read from the storage medium is written to a memory provided in a function expansion board inserted into the computer of the system or apparatus or a function expansion unit connected to the computer, the program This includes the case where the CPU or the like provided in the function expansion board or unit performs part or all of the actual processing based on the instruction, and the above functions are realized by the processing.

In the present embodiment, the information about the user's singing level used when dividing the user's stage is different from the case of the first embodiment, not the user's singing history data but the user's input to the microphone. Is divided based on the voice data of the person. Since other parts are the same as those in the first embodiment, description thereof is omitted.
Specifically, it depends on the voice of a person or the sound of a musical instrument that is output from the speaker or headphones of the karaoke terminal 3 or the user terminal 4 based on musical note data that specifies the pitch or length of individual sounds in music. In response to a plurality of pitches, the user utters and inputs to the microphone. The voice data input to the microphone and the sound data output from the speaker or the headphone are transmitted from the karaoke terminal 3 or the user terminal 4 to the karaoke host device 1.
Next, the central processing unit of the karaoke host apparatus 1 determines the user's singing level based on the result of comparing the received voice data and sound data, and divides all sound ranges used in karaoke into a plurality of stages. To determine the range of each stage of the user.

For example, in response to a utterance instruction for sampling from the karaoke terminal 3, the user utters the microphone 20 so as to match the pitch of the heard sound while listening to the sound output from the speaker 21. The data is transmitted from the karaoke terminal 3 to the karaoke host device 1 through the communication line 2 together with the sound data output from the speaker 21. It should be noted that a plurality of pitches output from the speaker 21 based on the note data for sampling are output in a range up to the highest and lowest sounds that the user cannot utter.
Then, the central processing unit of the received karaoke host device 1 compares the pitch of the user's voice data with the pitch of the sound data output from the speaker 21, and within which range the difference between the two pitches falls. The user's singing level is determined based on whether or not the user's singing is performed, and all sound ranges used in karaoke are divided into a plurality of steps to determine the sound range of each step of the user.

For example, when the pitch of the user's voice data is the same as the pitch of the sound data output from the speaker 21, the difference is within a semitone, or the difference exceeds a semitone, An example of determining the singing level will be described.
If both are the same, the MIDI note number is 62 to 70, and if the difference is within a semitone, the difference is within 60 to 61 and 71 to 72, the pitch of 59 or less is stage C bass, Everything used in karaoke, with pitches 60-61 being stage B bass, pitches 62-70 being stage A, pitches 71-72 being stage B trebles, and pitch 73 and above being stage C trebles. Divide the range into five and determine the range of each stage of the user.

  Note that the input means from the microphone 20 in the karaoke terminal 3 is not limited to a method in which the user utters in response to an utterance instruction for sampling from the karaoke terminal 3. The user's voice data uttered during normal singing of the music and the sound data output from the speaker 21 may be transmitted to the karaoke host device 1 and the two data may be compared.

  The object of the present invention can also be achieved by supplying a software program that implements the functions of this embodiment to a system or apparatus, and the computer of the system or apparatus reading and executing the software program recorded on the storage medium. This is the same as in the case of the first embodiment.

In the present embodiment, unlike the case of the first embodiment, the information regarding the user singing level used when dividing the user stage is not the user singing history data, but the user is in the user terminal 4. The data is divided based on user input data input by the input unit. Since other parts are the same as those in the first embodiment, description thereof is omitted.
Specifically, based on the note data transmitted from the karaoke host device 1 in response to a request from the user terminal 4, it depends on the voice of a person or the sound of a musical instrument output from the speaker or headphones of the user terminal 4. The user inputs information related to the utterance level using an input unit such as a keyboard or a mouse of the user terminal 4 according to a plurality of pitches. And the information regarding the said utterance level is transmitted to the karaoke host apparatus 1, and in the central processing part of the karaoke host apparatus 1, all the sound ranges used in karaoke are divided into a plurality of steps, and the sound ranges of the respective steps of the user are determined. .

For example, in response to an input instruction for sampling transmitted from the karaoke host device 1, the user utters a sound with sufficient margin while listening to the sound output from the speaker or headphones of the user terminal 4. Input is performed using an input unit such as a keyboard or a mouse of the user terminal 4 such as 1 if possible, 2 if it is possible to speak, 3 if it is possible to speak, 4 if it is impossible to speak, and the like. It is assumed that the sound output from the speaker or the headphone is output in a range up to the highest sound and the lowest sound that the user inputs as being unable to speak.
If the user uses the input unit to input from low to high or high to low, the voice cannot be spoken “4”, the voice can be spoken “3”, the voice can be spoken “2”, and the voice can be spoken with sufficient margin. It is input in the order of “1”, substantially utterable “2”, somehow utterable “3”, and unspeakable “4”. Therefore, in the case of input that does not match this order, input error checking means for setting an input error is provided to restrict input. Therefore, when MIDI note number 61 is input as “2” which can be uttered substantially, “1” can be uttered with a margin from 62 to 70, and “2” can be uttered as 71, it can be uttered with a margin at 72. Entering “1” results in an input error, and input is restricted.
And the information input by the input part is transmitted from the user terminal 4 to the karaoke host apparatus 1 through the communication line 2, and in the central processing part of the karaoke host apparatus 1, all the information used in karaoke is based on the input information. The range is divided into a plurality of stages, and the range of each stage of the user is determined.

  Assuming that it is possible to speak with a margin, 1 is entered as MIDI note number 62 to 70, and 2 as almost speech is possible as 60 to 61 and 71 to 72. If it is possible to speak, 3 is input from 58 to 59 and 73 to 74, and if it is not possible to speak is 4 or less, and 57 is 75 or more, the pitch is 57 or less. Is stage D bass, pitches 58 to 59 are stage C bass, pitches 60 to 61 are stage B bass, pitches 62 to 70 are stage A, pitches 71 to 72 are stage B trebles, pitch All the ranges used in karaoke are divided into seven such that 73 to 74 are stage C trebles and 75 and above are stage D trebles, and the range of each stage of the user is determined.

  The object of the present invention can also be achieved by supplying a software program that implements the functions of this embodiment to a system or apparatus, and the computer of the system or apparatus reading and executing the software program recorded on the storage medium. This is the same as in the case of the first embodiment.

1 karaoke host device 2 communication line 3 karaoke terminal 4 user terminal 11 central processing unit 12 external storage unit 13 user interface unit 14 remote control terminal 15 communication control unit 16 video display unit 17 video processing unit 18 audio generation unit 19 audio processing unit 20 Microphone 21 Speaker

Claims (12)

Main melody database means for extracting the music data of the main melody from the music data of the karaoke song, calculating the total pitch of each pitch of the main melody and creating a database;
Based on the information about the singing level for each pitch of the karaoke user, all ranges used in karaoke are divided into a plurality of stages according to the singing level of the user, and the correction coefficient for each divided stage Step division means for determining
Of the music data databased by the main melody database, the target music data acquisition means for acquiring music data about the music for which the singable index is calculated,
A first computing unit that obtains a total value of pitches of each pitch included in the range of the user's each stage for the music data acquired by the target music data acquiring unit;
Second computing means for obtaining a value obtained by multiplying the value obtained by the first computing means by a correction coefficient determined for each stage of the user;
Singable index calculation for calculating the user's singable index by dividing the sum of the values of each stage obtained by the second computing means by the sum of the values of each stage obtained by the first computing means Means and
The karaoke host apparatus according to claim 1, wherein the correction coefficient decreases as the user moves away from the highest level of the singing level. Use of acquiring the range of singable sounds of the user by summing up the values obtained by multiplying the range of each stage determined by the stage dividing means by the correction coefficient determined for each stage for all stages. Person range acquisition means,
A determination range acquisition unit that acquires the range of the remaining music data excluding the music data that does not satisfy the predetermined condition in order from the highest sound or the lowest sound from the music data acquired by the target music data acquisition unit;
Further provided is a sound range determination unit for determining whether or not the user's singable range acquired by the user range acquisition unit is larger than the determination range acquired by the determination range acquisition unit. The karaoke host device according to claim 1. About the music data acquired by the target music data acquisition means, the changed music data acquisition means for acquiring the music data after appropriately changing the key;
The music data after changing the key acquired by the post-change music data acquisition means, further comprising a post-change singable index calculation means for calculating a singable index by the singable index calculation means The karaoke host device according to claim 1. Information on the user's singing level in the stage dividing means is:
Regarding all or part of the karaoke pieces that have been sung by the user, the melody is obtained based on the total value of the pitches of each pitch of the main melody created by the main melody database. The karaoke host device according to claim 1, wherein the karaoke host device is a karaoke host device. Information on the user's singing level in the stage dividing means is:
A plurality of pitches output based on musical note data from a karaoke terminal installed on the karaoke shop side connected to the karaoke host device via a communication line or a user terminal installed on the karaoke user side 2. The method according to claim 1, wherein the data is obtained based on a result of comparing voice data input to a microphone by a user according to sound and sound data output from the karaoke terminal or the user terminal. 4. The karaoke host device according to any one of 3. Information on the user's singing level in the stage dividing means is:
In response to a plurality of pitches output from a user terminal installed on the karaoke user's side connected to the karaoke host device via a communication line, the user can select a user terminal. 4. The karaoke host apparatus according to claim 1, wherein the karaoke host apparatus is obtained based on information on the utterance level input by the input unit. In the computer equipped with the karaoke host device,
A main melody database function for extracting the music data of the main melody from the music data of the karaoke song, calculating the total length of each pitch of the main melody and creating a database;
Based on the information about the singing level for each pitch of the karaoke user, all ranges used in karaoke are divided into a plurality of stages according to the singing level of the user, and the correction coefficient for each divided stage A stage division function to determine
Among the music data databased by the main melody database creation function, a target song data acquisition function for acquiring music data about a song for which a singable index is calculated,
A first calculation function that obtains a total value of pitches of pitches included in the range of the user's each step for the music data acquired by the target music data acquisition function;
A second calculation function for obtaining a value obtained by multiplying a value obtained by the first calculation function by a correction coefficient determined for each stage of the user;
Singable index calculation for calculating the user's singable index by dividing the sum of the values of each stage obtained by the second computing function by the sum of the values of each stage obtained by the first computing function Function and
The program is characterized in that the value of the correction coefficient decreases as the user moves away from the highest level of the user's singing level. Use of acquiring the range of singable sounds of the user by summing up the values obtained by multiplying the range of each stage determined by the stage division function by the correction coefficient determined for each stage for all stages. A person's range acquisition function,
From the music data acquired by the target music data acquisition function, a determination range acquisition function for acquiring the range of the remaining music data excluding the music data that does not satisfy the predetermined condition in order from the highest sound or the lowest sound;
Further realizing a sound range determination function for determining whether or not the user's singable range acquired by the user range acquisition function is larger than the determination range acquired by the determination range acquisition function The program according to claim 7. About the music data acquired by the target music data acquisition function, a post-change music data acquisition function for acquiring music data after appropriately changing the key;
The music data after changing the key acquired by the music data acquisition function after the change is further implemented, and a singable index calculation function after change that calculates a singable index by the singable index calculation function is further realized. The program according to any one of claims 7 to 8. Information about the user's singing level in the stage division function,
Regarding all or part of the karaoke pieces that have been sung by the user, the melody is obtained based on the total value of the pitches of each pitch of the main melody databased by the main melody database creation function. The program according to any one of claims 7 to 9, characterized in that: Information about the user's singing level in the stage division function,
A plurality of pitches output based on musical note data from a karaoke terminal installed on the karaoke shop side connected to the karaoke host device via a communication line or a user terminal installed on the karaoke user side 8. The method according to claim 7, wherein the data is obtained based on a result of comparing voice data input to a microphone by a user according to sound and sound data output from the karaoke terminal or the user terminal. 10. The program according to any one of 9. Information about the user's singing level in the stage division function,
In response to a plurality of pitches output from a user terminal installed on the karaoke user's side connected to the karaoke host device via a communication line, the user can select a user terminal. 10. The program according to claim 7, wherein the program is obtained based on information on the utterance level input by the input unit.

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