JP2007078724A - Electronic musical instruments - Google Patents

Abstract

PROBLEM TO BE SOLVED: To more appropriately update a judgment criterion for evaluating a performance song performed by a performer.
SOLUTION: An absolute evaluation unit 17 that generates an absolute evaluation by comparing a sample musical piece to be played based on an operation of a performance input device 5 with a sample music, and an output converted from the absolute evaluation based on a determination criterion An evaluation output unit 18 for outputting the evaluation and an evaluation standard updating unit 19 for automatically updating the determination standard based on the statistical result of the absolute evaluation are provided.
[Selection] Figure 1

Description

  The present invention relates to an electronic musical instrument, and more particularly, to an electronic musical instrument that evaluates a musical piece performed by a performer.

  Electronic musical instruments that evaluate performances performed by performers are known. The performer plays the electronic musical instrument, and the electronic musical instrument compares the played musical piece with the sample musical piece, and evaluates the quality based on the deviation. The electronic musical instrument is difficult for beginners and too easy for advanced users when the criteria are constant, and may not be practiced. There is a demand for an electronic musical instrument in which a criterion for evaluating a performance piece performed by a performer is appropriately updated.

  Japanese Unexamined Patent Application Publication No. 2004-101957 discloses an operation evaluation apparatus that can evaluate the operation without impairing the user's willingness. The motion evaluation apparatus includes storage means for storing reference data representing a feature amount of an action to be performed by a user within a specific period, and operation data representing a feature amount of an action performed by the user within the specific period A data acquisition means for acquiring a feature amount represented by the reference data and a feature amount represented by the action data, and an evaluation means for evaluating a user's action based on the comparison result; And an evaluation control means for changing a reference for evaluation by the evaluation means.

JP 2004-101957 A

  An object of the present invention is to provide an electronic musical instrument in which a criterion for evaluating a performance piece performed by a player is updated more appropriately.

  In the following, means for solving the problems will be described using the reference numerals used in the best modes and embodiments for carrying out the invention in parentheses. This reference numeral is added to clarify the correspondence between the description of the claims and the description of the best mode for carrying out the invention / example, and is described in the claims. It should not be used to interpret the technical scope of the invention.

  An electronic musical instrument according to the present invention includes an absolute evaluation unit (17) that generates an absolute evaluation by comparing a performance music piece to be played based on an operation of the performance input device (5) with a sample music piece, and based on a determination criterion. An evaluation output unit (18) for outputting an output evaluation converted from the absolute evaluation, and an evaluation criterion updating unit (19) for automatically updating the determination criterion based on the statistical result of the absolute evaluation. preferable.

  The electronic musical instrument according to the present invention selects a selection user from among a plurality of users based on an operation of a determination criterion database (12) that records a plurality of determination criteria in association with a plurality of users in a storage device, and a setting input device (6). It is preferable to further include a setting unit (14) to be selected. At this time, the evaluation output unit (18) refers to the determination criterion database (12) and converts the absolute evaluation into the output evaluation based on the determination criterion corresponding to the selected user among the plurality of determination criteria.

  The electronic musical instrument according to the present invention includes a determination criterion database (12) that records a plurality of determination criteria in association with a plurality of sample songs and a sample from a plurality of sample songs based on the operation of the setting input device (6). It is preferable to further include a setting unit (14) for selecting a song. At this time, the evaluation output unit (18) refers to the determination criterion database (12) and converts the absolute evaluation into the output evaluation based on the determination criterion corresponding to the selected sample piece of the plurality of determination criteria.

  The electronic musical instrument according to the present invention includes a plurality of determination criteria databases (12) that record a plurality of determination criteria in association with a set of a plurality of users and a plurality of sample songs in a storage device, and an operation of a setting input device (6). It is preferable to further include a setting unit (14) for selecting a selected user from among the users and selecting a sample song from a plurality of sample songs. At this time, the evaluation output unit (18) refers to the determination criterion database (12) and outputs an absolute evaluation based on the determination criterion corresponding to the combination of the selected user and the selected sample music among the plurality of determination criteria. Convert to

  The output evaluation associates a stage with an item. The number of items is preferably increased or decreased based on a criterion. Alternatively, the stage is preferably different based on the criterion.

  The electronic musical instrument according to the present invention further includes a sample tune playing section (15) for automatically playing a sample tune. At this time, it is preferable that the performer can perform the performance music while listening to the automatically played sample music.

  The electronic musical instrument according to the present invention can more appropriately update the determination criterion for evaluating the performance music performed by the performer.

  An embodiment of an electronic musical instrument according to the present invention will be described with reference to the drawings. In the electronic musical instrument 1, as shown in FIG. 1, the electronic musical instrument main body 2 includes a performance input device 5, a setting input device 6, a speaker 7, and a display 8. The performance input device 5 is formed of a plurality of switches, and is operated when the performer plays a musical piece using the electronic musical instrument 1. The performance input device 5 is exemplified by a keyboard having a plurality of keys. The plurality of keys are formed of a plurality of white keys and a plurality of black keys, and each correspond to a plurality of different musical sounds. The setting input device 6 is formed of a plurality of switches. The plurality of switches includes a start button. As the setting input device 6, a front panel disposed on the upper part of the electronic musical instrument main body 2 is exemplified. The speaker 7 converts the electrical signal generated by the electronic musical instrument main body 2 into sound, and outputs the sound based on the information generated by the electronic musical instrument main body 2. The display 8 includes a display surface, and displays a screen generated by the electronic musical instrument body 2 on the display surface.

  The electronic musical instrument main body 2 is a computer and includes a CPU and a storage device not shown. The CPU executes a computer program installed in the electronic musical instrument main body 2 and controls the storage device, the performance input device 5, the setting input device 6, the speaker 7, and the display 8. The storage device is a ROM or a RAM, records the computer program, and temporarily records information generated by the CPU. The electronic musical instrument body 2 includes, as its computer program, a sample music database 11, a judgment reference database 12, a performance unit 13, a setting unit 14, a sample music performance unit 15, a performance music recording unit 16, an absolute evaluation unit 17, and an evaluation output unit 18. And the evaluation standard update unit 19 are installed.

  The sample music database 11 records music data of sample music in a storage device. The music data associates an event with a step time. The step time indicates the time from the beginning of the sample song. The event indicates that when the performance input device 5 is a keyboard, the key of the keyboard is pressed. The event consists of note number, velocity and gate time. The note number indicates a number for identifying a key to be pressed at the time indicated by the step time. Velocity indicates the key strength at which the key indicated by the note number is pressed. The gate time indicates the time from when the key indicated by the note number is pressed until the key is released.

  The determination criterion database 12 records the determination criterion in a storage device.

  The performance unit 13 generates a musical sound from the speaker 7 based on the operation of the performance input device 5. For example, when the performance input device 5 is a keyboard, the performance unit 13 outputs a musical tone having a pitch corresponding to the key that is pressed on the keyboard from the speaker 7. The performance unit 13 further outputs a plurality of musical sounds corresponding to the plurality of keys simultaneously when a plurality of keys are pressed. The performance unit 13 further adds an effect corresponding to the keystroke strength of the key to the musical sound. For example, the higher the keystroke strength, the higher the volume of the musical tone.

  The setting unit 14 designates a performer who plays a performance song based on the operation of the setting input device 6. The setting unit 14 further designates a sample song that is a model of the performance song based on the operation of the setting input device 6. The setting unit 14 further designates a tempo for playing the musical piece based on the operation of the setting input device 6. The setting unit 14 further selects whether or not to generate a metronome sound when playing a musical piece based on the operation of the setting input device 6. The setting unit 14 further specifies what sound is to be generated at each beat based on the operation of the setting input device 6 when the metronome sound is generated. Further, the setting unit 14 selects whether or not to automatically perform the sample music when performing the performance music based on the operation of the setting input device 6.

  When the start button of the setting input device 6 is pressed, the sample music playing unit 15 displays the timing on the display 8. The timing is the time from the beginning of the sample song compared to the performance song to be played, the number of measures in the sample that are automatically played, and the number of beats in the novel that are played automatically. It shows. Further, when the setting section 14 selects that the metronome sound is generated by the setting section 14, the sample tune playing section 15 is responsive to the tempo specified by the setting section 14 and the sound to be generated at each beat. Is generated from the speaker 7. The sample tune playing unit 15 automatically plays the sample tune designated by the setting unit 14 when the setting unit 14 selects automatic performance, and generates the sample tune from the speaker 7.

  The performance song recording unit 16 generates a musical sound from the speaker 7 based on the operation of the performance input device 5. The performance song recording unit 16 further records in the storage device the details of the operation of the performance input device 5. The operation content associates an event with a step time. The step time indicates the time from the beginning of the performance song. The event indicates that when the performance input device 5 is a keyboard, the key of the keyboard is pressed. The event consists of note number, velocity and gate time. The note number indicates a number for identifying a key to be pressed at the time indicated by the step time. The velocity indicates the strength with which the key indicated by the note number is pressed. The gate time indicates the time from when the key indicated by the note number is pressed until the key is released.

  The absolute evaluation unit 17 compares the operation content recorded by the performance music recording unit 16 with the music data recorded by the sample music database 11, and calculates the absolute evaluation of the performance music played. The absolute evaluation shows the distribution of errors between the timing at which a note should be played and the timing at which the note was played for all notes, and the keystroke strength at which one note should be played and the note played. The distribution of errors from the keystroke strength is shown.

  The evaluation output unit 18 converts the absolute evaluation calculated by the absolute evaluation unit 17 based on the determination criterion recorded in the determination criterion database 12 into an output evaluation. The evaluation output unit 18 further generates a screen indicating the output evaluation and displays the screen on the display 8.

  The evaluation criterion updating unit 19 updates the determination criterion recorded by the determination criterion database 12 when the absolute evaluation statistical result calculated by the absolute evaluation unit 17 satisfies a predetermined condition. The condition is that the absolute evaluation unit 17 finally calculates a substantially equal absolute evaluation over a predetermined number of times, and finally the evaluation output unit 18 calculates a substantially equal output evaluation over a predetermined number of times. Is exemplified. For example, when the output evaluation calculated by the evaluation output unit 18 is evaluated equal to or more than a predetermined number of times, the evaluation reference updating unit 19 does not calculate the same output evaluation even if the same absolute evaluation is calculated. Update the criteria. More specifically, the evaluation criterion update unit 19 updates the determination criterion so that the absolute evaluation is better than the predetermined criterion when it continues more than a predetermined number of times, and the absolute evaluation is higher than the predetermined criterion. The criterion is updated so that it becomes gradual when bad things continue for a predetermined number of times or more.

  FIG. 2 shows a sample music table recorded by the sample music database 11. The sample music table 21 associates the sample music identification information 22 with the music data 23. The sample song identification information 22 identifies a plurality of sample songs from each other and indicates the name of the sample song. The music data 23 indicates the music data of the sample music identified by the sample music identification information 22. That is, the sample music performance unit 15 refers to the sample music table 21 and automatically performs the sample music based on the music data corresponding to the sample music specified by the setting unit 14.

  FIG. 3 shows a screen generated by the evaluation output unit 18. The screen 41 associates a plurality of stage fields 43 with a plurality of item fields 42. In the item column 42, items for which performance songs are evaluated are displayed. Examples of the items include “rhythm tendency”, “rhythm variation”, “large deviation / sound loss”, “mistouch”, and “touch variation”. The stage column 43 displays a stage indicating the degree of good or bad with respect to the items shown in the item column 42.

  The stage column 43 indicates whether the performance was performed at an earlier timing or later timing when the item column 42 indicates “rhythm tendency”, and “Perfect!” And “Perfect!” Indicates one of the following: "I'm on the rhythm", "I'm running a little!", "I'm a little late!", "I'm running!" ing. The stage column 43 indicates how many notes that could not be played at a certain rhythm when the item column 42 indicates “variation of rhythm”, and “played!” And “correctly played”. ”,“ I have a little unevenness! ”, Or“ I have an unevenness! ”. The stage column 43 indicates the number of notes whose timing is greatly deviated and not played, among the notes constituting the sample music, when the item column 42 indicates “large deviation / missing sound”. . The stage column 43 indicates the number of notes that make a mistake in the notes constituting the sample music when the item column 42 indicates “mistouch”. The stage column 43 indicates how much the strength of the touch is aligned when the item column 42 indicates “touch variation”, and “plays it firmly” and “plays it together.” "Is shown.

  FIG. 4 shows a determination criterion table recorded by the determination criterion database 12. The determination criterion table 31 associates the user identification information 32 and the sample song identification information 33 with the absolute evaluation statistical result 34 and the determination criterion 35. The user identification information 32 identifies a performer who performs a performance song evaluated by the electronic musical instrument 1, and indicates, for example, the name of the performer. The sample song identification information 33 identifies a sample song that is a model of a performance song evaluated by the electronic musical instrument 1 and indicates the name of the sample song. The absolute evaluation statistical result 34 is an absolute value calculated by the absolute evaluation unit 17 comparing the performance music performed by the performer identified by the user identification information 32 and the sample music identified by the sample music identification information 33. Statistical results of the evaluation are shown. The criterion 35 outputs the absolute evaluation calculated by the absolute evaluation unit 17 comparing the musical piece performed by the performer identified by the user identification information 32 and the sample musical piece identified by the sample musical piece identification information 33. The criterion used when converting into evaluation is shown.

  The determination criterion indicates an item to be evaluated. The evaluation output unit 18 generates a screen on which only the item indicated by the determination criterion 35 and the stage corresponding to the item are described and displays the screen on the display 8. The criterion further indicates severity for each item. Based on the severity, the evaluation output unit 18 converts the absolute evaluation calculated by the absolute evaluation unit 17 into the level of the item. For example, the severity indicates the time when the item is “large deviation / missing sound”. The time initially indicates a time corresponding to 32 notes. The evaluation output unit 18 did not play a note with a note whose timing was greatly shifted when the note was not played in a range extended by a time indicated by its severity before and after the timing at which a note should be played. Count as a note.

  At this time, the setting unit 14 displays the names of a plurality of performers described in the user identification information 32 of the determination criterion table 31 on the display 8, and based on the operation of the setting input device 6 from the plurality of performers. Designate one selected player. When there is no performer to be specified among the plurality of performers, the user newly inputs the name of the performer. At this time, the setting unit 14 adds the input player's name to the user identification information 32 of the determination criterion table 31. The setting unit 14 displays the names of a plurality of sample songs described in the sample song identification information 33 of the determination criterion table 31 on the display 8, and based on the operation of the setting input device 6 from among the plurality of sample songs. Designate one selected sample song.

  The evaluation output unit 18 refers to the determination criterion table 31 and uses the absolute evaluation calculated by the absolute evaluation unit 17 based on the determination criterion corresponding to the performer and the sample music specified by the setting unit 14 as the output evaluation. Convert. Every time the absolute evaluation unit 17 calculates the absolute evaluation of the musical piece performed by the performer specified by the setting unit 14, the absolute evaluation unit 17 corresponds to the performer and the sample music specified by the setting unit 14 of the determination criterion table 31. Update the statistical result of absolute evaluation. The evaluation criterion update unit 19 refers to the determination criterion table 31, and when the statistical result of the absolute evaluation corresponding to the performer and the sample music specified by the setting unit 14 satisfies a predetermined condition, the evaluation criterion update unit 19 Update criteria for sample music.

  The operation of the electronic musical instrument 1 includes a performance operation and an evaluation operation. In the performance operation, the electronic musical instrument 1 generates a musical sound from the speaker 7 based on the operation of the performance input device 5. For example, when the performance input device 5 is a keyboard, the electronic musical instrument 1 outputs a musical sound corresponding to the key that is pressed on the keyboard from the speaker 7. The electronic musical instrument 1 further outputs a plurality of musical sounds corresponding to the plurality of keys simultaneously when a plurality of keys are pressed. The electronic musical instrument 1 further adds an effect corresponding to the keystroke strength of the key to the musical sound. For example, the higher the keystroke strength, the higher the volume of the musical tone.

  FIG. 5 shows the operation to be evaluated. The evaluation operation is executed when a setting item is designated by the user. That is, the user operates the setting input device 6 and designates a performer who plays a performance song evaluated by the electronic musical instrument 1. The user further operates the setting input device 6 to designate a sample music that is a model of the performance music evaluated by the electronic musical instrument 1. The user further operates the setting input device 6 to designate the tempo for playing the performance music. The user further operates the setting input device 6 to select whether or not to sound the metronome when the performance musical piece is evaluated using the electronic musical instrument 1. Further, when the user sounds the metronome sound, the user operates the setting input device 6 to designate what sound is to be sounded at each beat. The user further operates the setting input device 6 to select whether or not to perform the sample music automatically when evaluating the performance music using the electronic musical instrument 1.

  When the start button of the setting input device 6 is pressed, the electronic musical instrument 1 has a time from the beginning of the sample music, the number of measures in the sample music that are automatically played, and an automatic one of the novels. The number of beats being played is displayed on the display 8. Further, when the electronic musical instrument 1 is selected to generate a metronome sound, the electronic musical instrument 1 starts sounding the metronome according to what kind of sound is to be sounded at the tempo specified by the user and each beat ( Step S1).

  The electronic musical instrument 1 executes a process for recording the operation content operated using the performance input device 5 when the performance music is played. The electronic musical instrument 1 executes a process for automatically playing the designated sample music when the user selects to play automatically (step S2). When the operation of step S2 is completed, the electronic musical instrument 1 records the operation contents operated using the performance input device 5, and automatically plays the designated sample music when it is selected to perform automatically. (Step S3). The operation of step S2 is continuously executed until the performance by the user is finished and the sample music is finished (step S4, YES).

  When the musical piece is finished, the electronic musical instrument 1 compares the musical piece with the sample piece, and regarding all the notes, the distribution of errors between the timing at which one note should be played and the timing at which the note was played. Then, the distribution of errors between the keying intensity at which one note is to be played and the keying intensity at which the note is played is calculated (step S5). The statistical result of the absolute evaluation corresponding to the performer and the sample music designated by the user of the determination criterion table 31 is updated. The electronic musical instrument 1 refers to the determination criterion table 31 and converts the absolute evaluation into the output evaluation based on the determination criterion corresponding to the performer and the sample music designated by the user. The electronic musical instrument 1 generates a screen indicating the output evaluation and displays it on the display 8 (step S6).

  The electronic musical instrument 1 refers to the determination criterion table 31 and determines when the statistical result of the absolute evaluation corresponding to the performer and the sample music specified by the user satisfies a predetermined condition (YES in step S7). The determination criteria corresponding to the performer and sample music in the reference table 31 are updated (step S8). For example, the electronic musical instrument 1 updates the determination standard so that the absolute evaluation is better than a predetermined standard after a predetermined number of times or more, so that the absolute evaluation is worse than the predetermined standard. The criterion is updated so that it becomes gradual when the number of times continues.

  According to such an evaluation operation, the electronic musical instrument 1 can be evaluated for each player or for each sample music piece. Further, the electronic musical instrument 1 can make different evaluations on performance songs that have been played in the same manner. For example, the electronic musical instrument 1 can be severely evaluated by advanced players and gently evaluated by beginners. As a result, the user is appropriately evaluated without being too gentle and not too strict, and the user is not tired of the output evaluation output by the electronic musical instrument 1.

  In another embodiment of the electronic musical instrument according to the present invention, the music data recorded by the sample music database 11 in the above-described embodiment is replaced with other information, and the operation content recorded by the performance music recording unit 16 is as follows. It has been replaced with other information. That is, the music data in the sample music table 21 recorded by the sample music database 11 indicates sample music recording data in which a sample music played in advance is recorded. The performance song recording unit 16 records performance song recording data in which a musical sound generated from the speaker 7 is recorded based on an operation of the performance input device 5 in a storage device. The absolute evaluation unit 17 compares the sample music recording data with the performance music recording data and calculates an absolute evaluation. Also at this time, the electronic musical instrument can achieve the same effect as the above-described embodiment.

FIG. 1 is a block diagram showing an embodiment of an electronic musical instrument according to the present invention. FIG. 2 is a diagram showing a sample music table. FIG. 3 is a diagram showing a screen. FIG. 4 is a diagram illustrating a determination criterion table. FIG. 5 is a flowchart showing the operation for evaluation.

Explanation of symbols

1: Electronic musical instrument 2: Electronic musical instrument body 5: Performance input device 6: Input device for setting 7: Speaker 8: Display 11: Sample music database 12: Judgment reference database 13: Performance part 14: Setting part 15: Sample music performance Unit 16: Performance song recording unit 17: Absolute evaluation unit 18: Evaluation output unit 19: Evaluation standard update unit 21: Sample music table 22: Sample music identification information 23: Music data 31: Judgment standard table 32: User identification information 33: Sample song identification information 34: Statistical results of absolute evaluation 35: Criteria 41: Screen 42: Item field 43: Stage field

Claims (7)

An absolute evaluation unit that generates an absolute evaluation by comparing a performance song to be played based on an operation of the performance input device with a sample song;
An evaluation output unit that outputs an output evaluation converted from the absolute evaluation based on a criterion;
An electronic musical instrument comprising: an evaluation criterion updating unit that automatically updates the determination criterion based on the absolute evaluation statistical result. In claim 1,
A determination criterion database that records a plurality of determination criteria in association with a plurality of users in a storage device;
A setting unit that selects a selected user from the plurality of users based on an operation of the setting input device;
The evaluation output unit refers to the determination criterion database, and converts the absolute evaluation into the output evaluation based on the determination criterion corresponding to the selected user among the plurality of determination criterion. In claim 1,
A criterion database that records a plurality of determination criteria in a storage device in association with a plurality of sample songs;
A setting unit that selects the sample music from the plurality of sample music based on the operation of the setting input device;
The evaluation output unit refers to the determination criterion database, and converts the absolute evaluation into the output evaluation based on the determination criterion corresponding to the selected sample piece of the plurality of determination criterion. In claim 1,
A determination criterion database that records a plurality of determination criteria in a storage device in association with a set of a plurality of users and a plurality of sample songs;
A selection unit that selects a selected user from the plurality of users based on an operation of a setting input device, and further selects a sample song from the plurality of sample songs;
The evaluation output unit refers to the determination criterion database, and converts the absolute evaluation into the output evaluation based on the determination criterion corresponding to a set of the selected user and the selected sample piece of the plurality of determination criteria. Convert electronic musical instrument. In any one of Claims 1-4,
The output evaluation associates a stage with an item,
The number of items increases or decreases based on the determination criteria. In any one of Claims 1-4,
The output evaluation associates a stage with an item,
The stage is different based on the criterion. In any one of Claims 1-6,
An electronic musical instrument further comprising a sample music playing unit for automatically playing the sample music.

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