JP2009092871A - Scoring device and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide technology by which, when scoring singing (or performance), it is more suited to human audible sense. <P>SOLUTION: Singing voice of a singer is collected by a microphone 15, and converted to an audio signal. A control section 11 of a Karaoke device 1 detects a pitch from the audio signal, and generates a singing pitch data SP. The control section 11 compares the singing pitch data SP with a reference pitch data RP for each note, and scores singing for each note according to difference of both. When the singing pitch data SP are shifted to a sharp side from the reference pitch data RP (that is, when the singing pitch data SP are higher than the reference pitch data RP), it is scored with stricter scoring criteria, than when the singing pitch data SP is shifted to a flat side (that is, when the singing pitch data SP are lower than the reference pitch data RP). <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a technique for evaluating singing (or performance).

In a karaoke apparatus, various methods for scoring the skill of a singer's singing have been proposed. For example, in Patent Document 1, when the singing timing and the reference timing are misaligned when comparing the singing and the reference that is a model, the singing voice data and the reference data are shifted in the time axis direction and correlated. And a method of scoring each note at the position with the highest cross-correlation has been proposed.
JP 2005-107330 A

By the way, in a karaoke apparatus that scores a song, there is a case where there is a difference between the scoring result by the apparatus and the skill of the song that the listener feels. Specifically, even if it is a song that the listener feels that the pitch is shifted, the scoring result by the device is not so bad, or conversely, even if it is a song that the listener feels that the pitch is not shifted much May result in poor scoring results. The same applies to the performance of musical instruments.
The present invention has been made under the above-described background, and it is an object of the present invention to provide a technique capable of scoring a singing (or performance) that is closer to human sensation than in the past. To do.

  In order to solve the above-described problems, a scoring apparatus according to a preferred aspect of the present invention detects reference data from reference data storage means for storing reference data representing a model sound, and an audio signal supplied from the sound collection means. Pitch detection means, scoring means for comparing the reference data stored in the reference data storage means and the pitch detected by the pitch detection means, and scoring according to the difference between the two, wherein the pitch detection means In the case where the pitch detected by the reference data is higher than the pitch indicated by the reference data, scoring is performed so that the scoring standard becomes stricter than in the case where the pitch detected by the pitch detection means is lower than the pitch indicated by the reference data. The scoring means to perform, and the output that outputs the data indicating the scoring results by the scoring means Characterized by comprising a stage.

  In the above-described aspect, the reference data storage unit stores reference data representing a model sound as a string of notes, and the scoring unit includes the reference data stored in the reference data storage unit and the pitch detection unit. The detected pitch may be compared for each note, and scoring may be performed for each note according to the difference between the two.

  In the above aspect, the scoring means compares the reference data stored in the reference data storage means with the pitch detected by the pitch detection means for each note, and the note is determined according to the difference between the two. The scoring may be performed every time and the scoring result of each note may be added.

  The scoring means calculates, for each note, an average value in the note of the pitch detected by the pitch detection means, and scores according to the difference between the calculated average value and the pitch indicated by the reference data. You may go.

  In the above aspect, it is determined whether or not the pitch detected by the pitch detection means is higher or lower than the pitch indicated by the reference data stored in the reference data storage means. In addition, an informing means for informing the determination result may be provided.

  Further, in the above-described aspect, the determination unit that determines the pitch of the reference data stored in the reference data storage unit and determines whether the pitch satisfies a predetermined condition for each note, and the scoring The means may perform the scoring so that the scoring criteria of a note with a positive determination result by the determination means is stricter than a note with a negative determination result by the determination means.

  Further, the scoring device according to a preferred aspect of the present invention includes a reference data storage unit that stores reference data that represents a typical sound as a row of notes, and a pitch that detects a pitch from an audio signal supplied from the sound collection unit. Detecting means; determining means for determining a pitch of reference data stored in the reference data storage means; and determining whether the pitch satisfies a predetermined condition for each note; and the reference data storage means Is a scoring unit that compares the reference data stored in the pitch and the pitch detected by the pitch detection unit for each note, and performs scoring according to the difference between the two, and the determination result by the determination unit is positive. Scoring criteria are more stringent for a note than for a note for which the determination result by the determination means is negative Characterized by comprising the scoring unit for performing a point, and output means for outputting data indicating a rating result by the scoring unit.

  In the above aspect, when the determination unit sorts the notes included in the reference data in ascending or descending order of the pitch, whether or not the notes are included in a predetermined order for each of the notes. May be determined.

  In the above-described aspect, the reference data storage means stores reference data that includes specific section data indicating a specific time section and represents an exemplary sound, and the scoring means includes a time section indicated by the specific section data. May be scored so that the scoring criteria are stricter than other sections.

  According to the present invention, in the singing (or performance) scoring, scoring closer to human hearing can be performed as compared with the conventional scoring.

<A: Configuration>
FIG. 1 is a block diagram showing a hardware configuration of a karaoke apparatus 1 according to an embodiment of the present invention. In the figure, the control unit 11 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory), and reads and executes a computer program stored in the ROM or the storage unit 12. Thus, each part of the karaoke apparatus 1 is controlled via the bus BUS. The storage unit 12 is a storage unit for storing a computer program executed by the control unit 11 and data used at the time of execution, and is, for example, a hard disk device. The display unit 13 includes a liquid crystal panel and displays various images under the control of the control unit 11. The operation unit 14 outputs a signal corresponding to an operation by the user of the karaoke apparatus 1 to the control unit 11. The microphone 15 is a sound collecting unit that collects sound and outputs an audio signal (analog signal) representing the collected sound. The audio processing unit 16 converts an audio signal (analog signal) output from the microphone 15 into digital data. The audio processing unit 16 converts the digital data into an analog signal and outputs the analog signal to the speaker 17. The speaker 17 is a sound emitting unit that emits sound with an intensity corresponding to an audio signal that is converted from digital data to an analog signal and output by the sound processing unit 16.

  In this embodiment, the case where the microphone 15 and the speaker 17 are included in the karaoke apparatus 1 will be described. However, the audio processing unit 16 is provided with an input terminal and an output terminal, and the input terminal is connected to the input terminal via an audio cable. An external microphone may be connected, and similarly, an external speaker may be connected to the output terminal via an audio cable. In this embodiment, the audio signal input from the microphone 15 to the audio processing unit 16 and the audio signal output from the audio processing unit 16 to the speaker 17 are analog audio signals. You may make it input / output. In such a case, the audio processing unit 16 does not need to perform A / D conversion or D / A conversion. The same applies to the display unit 13, and an external output terminal may be provided to connect an external monitor.

  As shown in FIG. 1, the storage unit 12 of the karaoke apparatus 1 includes a music data storage area 121 and a background image data storage area 122. The music data storage area 121 stores music data representing accompaniment sounds and lyrics of music. The background image data storage area 122 stores background image data representing a moving image displayed as a background at the time of karaoke accompaniment.

  Here, an example of the contents of the music data stored in the music data storage area 121 will be described. As shown in FIG. 2, the music data has a header and a plurality of tracks. Reference data in which reference data representing the content of a melody (pitch) to be sung by the user is described in the plurality of tracks. There are a data track, a performance track describing performance data representing the contents of karaoke performance sounds, and a lyrics track describing lyrics data representing the contents of lyrics. The header portion includes song number data for specifying a song, song name data indicating the song title, genre data indicating a genre, performance time data indicating the performance time of the song, and the like, as shown in FIG. . The above music data is described according to the MIDI format.

  Next, a specific example of reference data described in the reference data track will be described with reference to FIG. Reference data is data that represents an exemplary sound in a row of notes. Since FIG. 3 is a matrix of rows and columns, first the columns will be described. The delta time in the first column indicates the time interval between events, and is represented by the number of tempo clocks. When the delta time is “0”, it is executed simultaneously with the immediately preceding event. In the second column, the contents of messages of each event of the performance data are described. This message includes a control change message in addition to a note-on message (NoteOn) indicating a sounding event and a note-off message (NoteOff) indicating a mute event. In the example shown in FIG. 3, the control change message is not included.

The third column describes channel numbers. Here, for simplicity of explanation, the channel number of the reference data track is “1”.
In the fourth column, a note number (NoteNum) or a control number (CtrlNum) is described. Which is described depends on the content of the message. For example, in the case of a note-on message or a note-off message, a note number indicating a musical scale is described here, and in the case of a control change message, a control number indicating its type is described.
The fifth column describes specific values (data) of the MIDI message. For example, in the case of a note-on message, the velocity value indicating the sound intensity is described here, and in the case of a note-off message, the velocity value indicating the speed at which the sound is turned off is described. If there is, the value of the parameter corresponding to the control number is described.

Next, each row shown in FIG. 3 is a musical sound parameter indicating the attribute of each note of the melody to be sung, and is composed of a note-on event and a note-off event.
In the example shown in FIG. 3, the length of the delta time 480 is the length of a quarter note. In this case, it is indicated that the C4 sound is generated over the length of the quarter note by the event processing of the first row and the second row, and the G4 sound is changed to the quarter note by the event processing of the third row and the fourth row. It is shown to be pronounced over length. Then, it is shown that the F4 sound is pronounced over the length of the half note by the processing of the fifth and sixth lines.

  When the user performs a song designation operation, the designated song data is read from the song data storage area 121 based on the song number data and transferred to the RAM. The controller 11 sequentially reads and processes the music data in the RAM, so that the music performance progresses. At this time, the reference data is also read out in synchronization with the progress of the music, and the control unit 11 generates reference pitch data RP according to the note and velocity of the reference data.

  On the other hand, the voice of the singer input to the microphone 15 becomes a singing voice signal, which is output from the speaker 17 via an amplifier (not shown) and also input to the voice processing unit 16. After the voice processing unit 16 performs A / D conversion on the singing voice signal S1, the control unit 11 extracts the pitch of the singing voice and outputs it as the singing pitch data SP. In this case, the process of extracting the pitch of the singing voice is performed approximately every 30 ms.

<B: Operation>
FIG. 4 is a diagram illustrating a flow of processing performed by the control unit 11 of the karaoke apparatus 1. The operation of this embodiment will be described below with reference to FIG. In FIG. 4, the accompaniment playback unit 111, the display control unit 112, the pitch detection unit 113, and the scoring unit 114 are realized by the control unit 11 reading out and executing a computer program stored in the ROM or the storage unit 12. The The arrows in the figure schematically show the flow of data.

  When the user performs a music designation operation using the operation unit 14, the music data of the designated music is transferred from the music data storage area 121 to the RAM. The accompaniment playback unit 111 performs karaoke accompaniment by sequentially reading out the music data events in the RAM, and the display control unit 112 executes lyrics display processing by sequentially reading out the lyrics data of the music data in the RAM. Specifically, the accompaniment reproducing unit 111 outputs event data described in the performance track of the music data to the sound processing unit 16. The display control unit 112 outputs the lyrics data of the lyrics track to the display unit 13. As a result, the karaoke accompaniment sound is output from the speaker 17, while the lyrics represented by the lyrics data are displayed on the display unit 13.

  The singer sings along with the accompaniment sound emitted from the speaker 17. The singing voice of the singer is converted into an audio signal by the microphone 15 and A / D converted by the voice processing unit 16. The pitch detector 113 detects the pitch from the audio data A / D converted by the audio processor 16 (hereinafter referred to as “singing audio data”), and outputs singing pitch data SP representing the detected pitch. The singing pitch data SP generated by the pitch detection unit 113 is output to the scoring unit 114.

  The scoring unit 114 compares the reference pitch data RP and the singing pitch data SP, and scores the singing according to the difference between the two. At this time, the scoring unit 114 performs the scoring so that the scoring standard becomes stricter when the singing pitch data SP is higher than the reference pitch data RP than when the singing pitch data SP is lower than the reference pitch data RP. . That is, when the singing pitch data SP is shifted to the sharp side with respect to the reference pitch data RP (that is, when the singing pitch data SP is higher than the reference pitch data RP), the scoring unit 114 is flat. The scores are scored more severely than when the singing pitch data SP is lower than the reference pitch data RP.

Here, an example of a specific process of the scoring process performed by the scoring unit 114 will be described with reference to FIG. FIG. 5 is a flowchart showing a flow of scoring processing performed by the scoring unit 114. The scoring unit 114 first compares the singing pitch data SP and the reference pitch data RP in units of frames, and determines whether or not the difference is smaller than a threshold value (step S1). If the difference is smaller than the threshold value (step S2; YES), the process proceeds to the note unit scoring process (step S3). If the difference is larger than the threshold value (step S2; NO), the process proceeds to the next frame (step S4). ), The comparison process in units of frames is continuously performed (step S1). That is, when the difference between the singing pitch data SP and the reference pitch data RP is larger than the threshold value, the scoring unit 114 does not score the note (that is, does not score the note), and the difference becomes smaller than the threshold value. If this happens, the scoring process for each note is started.
In this embodiment, when the difference is smaller than the threshold value, the scoring process is performed for the note. However, the scoring mode is not limited to this. For example, when the difference is larger than the threshold value, the deduction process is performed for the note. You may make it perform.

  In the comparison processing for each frame shown in step S1, the scoring unit 114 uses different threshold values depending on whether the singing pitch data SP is shifted to the sharp side or the flat side with respect to the reference pitch data RP. To make a decision. FIG. 6 is a diagram for explaining the contents of the frame unit determination process. In FIG. 6, the horizontal axis indicates time and the vertical axis indicates pitch. The scoring unit 114 performs scoring processing for notes whose difference between the singing pitch data SP and the reference pitch data RP is smaller than a threshold value. In the example shown in FIG. 6, the sharp threshold is set to 35 (cent), and the flat shift is set to 50 (cent). In the example shown in FIG. 6, the scoring process is not performed on the note N1 (not scored), while the scoring process is performed on the notes N2 and N3. In this manner, the scoring unit 114 performs scoring such that the scoring for the sharp side deviation is more severe than the scoring for the flat side deviation by making the sharp side threshold value smaller than the flat side threshold value.

  Returning to the description of FIG. In step S3, the scoring unit 114 compares the reference pitch data RP and the singing pitch data SP for each note, and scores each note according to the difference between the two (step S3). More specifically, the scoring unit 114 calculates the average value of the singing pitch data SP in each note for each note included in the reference data, and according to the difference between the calculated average value and the reference pitch data RP. , Scoring in units of notes. At this time, the scoring unit 114 calculates the calculated average value when the calculated average value is shifted to the sharp side with respect to the reference pitch data RP (that is, when the calculated average value is higher than the reference pitch data RP). Scoring is performed more severely than when it is shifted to the flat side (that is, when the calculated average value is lower than the reference pitch data RP). Specifically, the scoring unit 114 performs scoring using different threshold values depending on whether the calculated average value is shifted to the sharp side or the flat side with respect to the reference data RP.

  Here, the note unit scoring process shown in step S3 will be described with reference to FIG. FIG. 7 is a diagram for explaining the content of the scoring process in units of notes. In FIG. 7, the horizontal axis represents the difference between the average singing pitch in one note and the reference pitch (hereinafter referred to as “DC parameter value”), and the vertical axis represents the average singing pitch and singing pitch in one note. Mean difference (hereinafter referred to as “AC parameter value”). The scoring unit 114 adds points for the note when the relationship between the DC parameter value and the AC parameter value is not included in the region P of FIG. 7, while in other cases, adds a score for the note. Not performed. At this time, in the example shown in FIG. 7, with respect to the DC parameter value, the sharp-side threshold is set to 35 (cent), and the flat-side deviation is set to 45 (cent). As described above, the scoring unit 114 scores the sharp side threshold value smaller than the flat side threshold value so that the scoring result for the sharp side deviation becomes stricter than the scoring result for the flat side deviation.

  When scoring in units of notes is completed, the scoring unit 114 determines whether or not the music has ended (step S5). If it is determined that the music has ended (step S5; YES), the overall scoring process is performed. On the other hand, if the music has not ended (step S5; NO), the process returns to step S1 to continue the comparison process in units of frames in order to perform the next note scoring process. (Step S1).

When it is determined that the music has ended (step S5; YES), the scoring unit 114 performs total scoring of the entire music by counting the scoring results for each note (step S6). At this time, the scoring unit 114 calculates the total score in consideration of the high and low sounds in the music.
An example of the total score calculation process will be described below. First, the scoring unit 114 classifies each note into three groups of a high tone portion, a middle tone portion, and a low tone portion by determining whether the reference pitch data satisfies a predetermined condition. As a grouping method, for example, the scoring unit 114 determines a predetermined number (for example, 10) of notes from the highest note (top note) to the highest note from the notes included in the music as a high tone. . Similarly, the scoring unit 114 determines a predetermined number (for example, 10) of notes from the notes included in the music as a low sound in order from the lowest. In other words, when the notes included in the reference data are sorted in the descending order (or ascending order) of the pitch, the scoring unit 114 determines that the notes included in the predetermined order are high (or low). Note that the grouping method is not limited to this, and any grouping method may be used as long as it is determined whether or not the pitch of each note satisfies a predetermined condition.

Next, the scoring unit 114 performs scoring so that the notes included in the high sound part and the notes included in the low sound part have stricter scoring standards than the other notes (that is, notes included in the middle sound part). Specifically, for example, for the notes included in the high-pitched part and the low-pitched part, the deduction amount may be doubled as compared with the case of scoring with the note included in the middle sound part. Specifically, for example, the scoring unit 114 calculates the total score as follows. First, the scoring unit 114 calculates the score tp of the entire music. Next, the scoring unit 114 calculates the score hp of the treble part by counting the scores of the notes included in the treble part. Next, the scoring unit 114 calculates the score lp of the bass part by counting the scores of the notes included in the bass part. Next, the scoring unit 114 corrects the total score tp by subtracting 5 points for each of the treble part and the bass part using the following formula (1).
tp = tp− (5- (hp / 20)) − (5- (lp / 20)) (1)
In this way, the scoring unit 114 scores the notes included in the high sound part and the notes included in the low sound part more severely than other notes (that is, notes included in the middle sound part).

  Returning to the description of FIG. The scoring unit 114 outputs data indicating the scoring result to the display control unit 112 (step S7). The display control unit 112 causes the display unit 13 to display an image indicating the scoring result based on the data supplied from the scoring unit 114. The singer can check the scoring result of his / her song by referring to the screen displayed on the display unit 13.

  By the way, when listening to a song, the listener is worried about the pitch shift on the sharp side, but the reverse (shift of the pitch on the flat side) is often less concerned. In the conventional apparatus, since the deviation on the sharp side and the deviation on the flat side are scored in the same manner, there may be a deviation between the score calculated by the apparatus and the human hearing. Specifically, for example, because the singing pitch is shifted sharply, even if the listener feels that the pitch is severely shifted, the scoring result is not so bad, or conversely, Since the pitch is shifted to the flat side, even if the listener does not feel the pitch shift so much, the calculated scoring result may be bad. On the other hand, in this embodiment, the deviation on the sharp side is scored more severely than the deviation on the flat side. Therefore, compared with the conventional case, the scoring result by the apparatus can be made closer to the listener's audibility, and the human audibility And the deviation from scoring by the device can be reduced.

  Also, when listening to a song, the pitch shift at the high and low pitches often remains in the listener's impression, so if the pitch shifts at the high or low pitch, the entire singing for the listener The evaluation of is often worse. In the conventional apparatus, since any sound range is evaluated in the same manner, there may be a difference between the score calculated by the apparatus and human hearing. Specifically, for example, even a singing that has a low evaluation by the listener because the pitch is greatly shifted in the treble part, the scoring result by the device is not so bad, or conversely, a sound with a shifted pitch is Even if the song is not so badly evaluated by the listener because it is concentrated in the sound range, the scoring result by the device may be bad. On the other hand, in this embodiment, scoring is performed more severely in the treble part and the bass part than the others, so that the scoring result by the apparatus can be brought close to the listener's sensation, and the human perception and scoring by the apparatus Deviation can be reduced.

<C: Modification>
As mentioned above, although embodiment of this invention was described, this invention is not limited to embodiment mentioned above, It can implement with another various form. An example is shown below. In addition, you may combine each following aspect suitably.
(1) In the above-described embodiment, the control unit 11 may determine whether the singing pitch data SP is higher or lower than the reference pitch data RP, and display the determination result on the display unit 13. Specifically, for example, the control unit 11 determines for each note whether the singing pitch data SP is higher or lower than the reference pitch data RP, totals the determination results, and displays data indicating the total results on the display unit 13. Output. The display unit 13 displays the screen illustrated in FIG. 8 based on the data supplied from the control unit 11. On the screen illustrated in FIG. 8, an image, a comment, or the like indicating whether the singing voice in the entire music is sharp or flat with respect to the pitch indicated by the reference data is displayed. Thereby, the singer can grasp whether his singing is sharp or flat, and can correct his singing based on this result.
The manner of notifying the singer of whether the singing voice is sharp or flat compared to the reference is not limited to this. For example, as shown in FIG. The icons I1, I2, and I3 indicating the determination results may be displayed on the display unit 13.

  In addition, the notification mode is not limited to this. For example, the notification may be performed by outputting a voice message, or information indicating the determination result is transmitted to the singer's mail terminal in an e-mail format. May be. In addition, information indicating the determination result may be output to the storage terminal and stored. In this case, the operator can refer to the information by reading the information from the storage medium using a computer. it can. The determination result may be printed out on a predetermined sheet. In short, any information may be output as long as it can output a message or information to the singer by any means.

(2) In the above-described embodiment, the control unit 11 may weight the scoring at the singing start portion or the rust portion. In this case, the control unit 11 refers to specific section data indicating a specific time section (singing start section, rust section, etc.) included in the music data, and sets the time section indicated by the specific section data to the other sections. Scoring more strictly.
Further, in the above-described embodiment, the genre of music may be determined, and scoring may be performed with different scoring modes depending on the genre. In this case, a table indicating the correspondence between the genre type and the scoring mode is stored in the storage unit 12 in advance, and the control unit 11 refers to the genre data indicating the genre type included in the music data, for example, Scoring with reference to a table stored in the storage unit 12 such that the grading standard is gentle when the genre is “children's song” and the grading standard is strict when the genre is “Enka”. You may make it carry out scoring by changing a mode.

(3) In the above-described embodiment, the reference data to be compared with the singing voice may be, for example, data representing the guide melody of the music, or may be data representing the singing voice serving as an example of the music. Any data may be used as long as it represents sound that serves as an example of music.

(4) In the above-described embodiment, the sharp side threshold is set to 35 cent and the flat side threshold is set to 45 cent so that the sharp side determination becomes stricter than the flat side determination. For example, the sharp side may be set to 50 cents and the flat side may be set to 70 cents as long as the sharp side scoring is more severe than the flat side scoring.

  In the above-described embodiment, the sharp side is scored more severely than the flat side by making the threshold value different between the sharp side and the flat side, but the scoring mode is not limited to this, for example, Instead of the note unit scoring process shown in FIG. 7, scoring as shown in FIG. 10 may be performed. In the example shown in FIG. 10, the sharp side shift P1 (the region that is not subject to point addition) is made wider than the flat side region P2 (the region that is not subject to point addition), thereby severely scoring the sharp side deviation.

(5) In the above-described embodiment, the singing voice of the singer is analyzed in real time. However, it is not always necessary to analyze the singing voice in real time. For example, an audio signal stored in advance in the storage unit may be analyzed. Good. Further, for example, the karaoke apparatus 1 is provided with a communication unit for performing data transmission via a communication network such as the Internet, and receives an audio signal via the communication network and analyzes the received audio signal. Also good.

(6) In the above-described embodiment, the control unit 11 generates the reference pitch data RP from the reference data included in the music data stored in the music data storage area 121. Reference pitch data representing the pitch may be stored in the storage unit 12 in advance.

(7) In the above-described embodiment, the singing voice of the singer and the reference data are compared. However, instead of the singing voice of the singer, the performance sound of the musical instrument by the performer and the reference data may be compared. The “speech” referred to in the present embodiment includes various sounds such as a sound generated by a person and a performance sound of a musical instrument.

(8) In the above-described embodiment, the karaoke apparatus 1 performs all the processes according to the present embodiment. On the other hand, two or more devices connected by a communication network may share the functions according to the above-described embodiment, and a system including the plurality of devices may realize the karaoke device 1 of the same embodiment. . For example, a computer device including a microphone, a speaker, a display device, an operation unit, and the like may be configured as a system in which a server device that executes scoring processing is connected via a communication network. In this case, for example, the computer apparatus converts the sound collected by the microphone into an audio signal and transmits it to the server apparatus, and the server apparatus analyzes and scores the received audio signal, and the scoring result is calculated by the computer apparatus. May be sent to.

(9) The program executed by the control unit 11 of the karaoke apparatus 1 in the above-described embodiment is recorded on a recording medium such as a magnetic tape, a magnetic disk, a flexible disk, an optical recording medium, a magneto-optical recording medium, RAM, or ROM. Can be provided in state. It is also possible to download to the karaoke apparatus 1 via a network such as the Internet.

It is a block diagram which shows an example of the hardware constitutions of a karaoke apparatus. It is a figure which shows the structure of music data. It is a figure which shows the content of the reference data track contained in music data. It is a figure which shows the flow of the process which the control part of a karaoke apparatus performs. It is a flowchart which shows the flow of a scoring process. It is a figure for demonstrating the content of the scoring process. It is a figure for demonstrating the content of the scoring process. It is a figure which shows an example of the screen displayed on a display part. It is a figure which shows an example of the screen displayed on a display part. It is a figure for demonstrating the content of the scoring process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Karaoke apparatus, 11 ... Control part, 12 ... Memory | storage part, 13 ... Display part, 14 ... Operation part, 15 ... Microphone, 16 ... Sound processing part, 111 ... Accompaniment reproduction part, 112 ... Display control part, 113 ... Pitch Detection unit, 114 ... scoring unit, 17 ... speaker, 121 ... music data storage area, 122 ... background image data storage area.

Claims (11)

Reference data storage means for storing reference data representing an exemplary sound;
Pitch detecting means for detecting the pitch from the audio signal supplied from the sound collecting means;
The scoring means for comparing the reference data stored in the reference data storage means with the pitch detected by the pitch detection means and scoring according to the difference between the reference data and the pitch detected by the pitch detection means Scoring means for scoring so that the scoring standard becomes stricter when the pitch detected by the pitch detection means is lower than the pitch indicated by the reference data when the pitch is higher than the pitch indicated by the reference data;
And an output means for outputting data indicating the result of the scoring by the scoring means. The reference data storage means stores reference data representing an exemplary sound in a row of notes,
The scoring means compares the reference data stored in the reference data storage means with the pitch detected by the pitch detection means for each note, and performs scoring for each note according to the difference between the two. The scoring device according to claim 1, wherein The scoring means compares the reference data stored in the reference data storage means and the pitch detected by the pitch detection means for each note, and performs scoring for each note according to the difference between the two, The scoring device according to claim 2, wherein scoring is performed by summarizing scoring results for each note. The scoring means calculates, for each note, an average value in the note of the pitch detected by the pitch detection means, and performs scoring according to a difference between the calculated average value and the pitch indicated by the reference data. The scoring device according to claim 2, wherein: It is determined whether or not the pitch detected by the pitch detection means is higher or lower than the pitch indicated by the reference data stored in the reference data storage means, and the determination result is notified. The scoring device according to claim 1, further comprising a notification unit. Reference data storage means for storing reference data representing exemplary sounds in a row of notes;
Pitch detecting means for detecting the pitch from the audio signal supplied from the sound collecting means;
Determination means for determining the pitch of the reference data stored in the reference data storage means, and determining for each note whether or not the pitch satisfies a predetermined condition;
Comparing the reference data stored in the reference data storage means and the pitch detected by the pitch detection means for each note, scoring means for scoring according to the difference between the two, the determination by the determination means Scoring means for scoring so that a note with a positive result has a stricter scoring standard than a note with a negative determination result by the determination means;
And an output means for outputting data indicating the result of the scoring by the scoring means. Determination means for determining the pitch of the reference data stored in the reference data storage means, and determining for each note whether or not the pitch satisfies a predetermined condition;
The scoring means performs scoring so that a scoring criterion is stricter for a note with a positive determination result by the determination means than for a note with a negative determination result by the determination means. The scoring device according to any one of 1 to 5. The determination means determines whether each note is included in a predetermined order for each note when the notes included in the reference data are sorted in ascending or descending pitch order. The scoring device according to claim 6 or 7, characterized in that The reference data storage means includes reference data representing a specific sound and including specific section data indicating a specific time section,
The scoring device according to any one of claims 1 to 8, wherein the scoring means scores the time interval indicated by the specific interval data so that the scoring standard becomes stricter than the other intervals. . A computer comprising reference data storage means for storing reference data representing an exemplary sound,
Pitch detecting means for detecting the pitch from the audio signal supplied from the sound collecting means;
The scoring means for comparing the reference data stored in the reference data storage means with the pitch detected by the pitch detection means and scoring according to the difference between the reference data and the pitch detected by the pitch detection means Scoring means for scoring so that the scoring standard becomes stricter when the pitch detected by the pitch detection means is lower than the pitch indicated by the reference data when the pitch is higher than the pitch indicated by the reference data;
A program that functions as an output unit that outputs data indicating a scoring result by the scoring unit. A computer comprising reference data storage means for storing reference data representing an exemplary sound in a row of notes,
Pitch detecting means for detecting the pitch from the audio signal supplied from the sound collecting means;
Determination means for determining the pitch of the reference data stored in the reference data storage means, and determining for each note whether or not the pitch satisfies a predetermined condition;
Comparing the reference data stored in the reference data storage means and the pitch detected by the pitch detection means for each note, scoring means for scoring according to the difference between the two, the determination by the determination means Scoring means for scoring so that a note with a positive result has a stricter scoring standard than a note with a negative determination result by the determination means;
A program that functions as an output unit that outputs data indicating a scoring result by the scoring unit.

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