JP4921343B2 - Performance evaluation device, program and electronic musical instrument - Google Patents

Description

  The present invention relates to a performance evaluation apparatus that specifies a performance method that is presumed to be a weak point of a performer and presents task music corresponding to the performance method as music to be practiced by the performer.

The applicant of the present application evaluates the performance contents of the performer by comparing the performance music data indicating the performance contents of the performance of the music performed by the performer with the performance music data indicating the performance contents when the music is appropriately played. The technique for doing this is proposed (refer patent document 1).
JP-A-2005-55635

  However, the above technique is intended to evaluate the performance contents, and it was not clear to the performer who received the evaluation results what kind of practice should be performed based on the evaluation results. However, it was not necessarily suitable for improving the performance of musical instruments efficiently.

  The present invention has been made to solve such problems, and an object of the present invention is to provide a technique for improving the performance of musical instruments more efficiently than in the past.

In order to solve the above problems, it is conceivable that a first configuration showing a performance evaluation device below.
In this configuration, the performance acquisition means for acquiring performance music data indicating the performance content of the music performance performed by the performer, and the performance content indicated by the performance music data acquired by the performance acquisition means are indicated by the performance music data. The weak point specifying means for specifying the performance method estimated as the weak point of the performer among the performance methods in the performance content indicated by the performance music data by comparing with the performance content when appropriately playing the music to be played, Task extracting means for extracting one or more task songs corresponding to the performance method specified by the weak point specifying means from a plurality of task songs classified as task songs for practicing a specific performance method, Music presentation means for presenting the subject music extracted by the subject extraction means as music to be practiced by the performer.

  With the performance evaluation device having such a configuration, a performance music that is presumed to be a weak point is specified based on the performance content of the music performance performed by the performer, and then a task music suitable for practicing the performance music is selected. Can be presented to the performer. This makes it clear for the performer that the performance method estimated to be a weak point can be practiced if the task music is played, so that the performance of the musical instrument can be improved efficiently through the performance of the task music. become.

  Furthermore, in the above configuration, focusing on the performance method, which is a weak point of the performer, and presenting the subject music suitable for practicing the performance method, the performance of the same music is simply improved by “familiarity”. Rather, it is suitable for essentially improving musical instrument-specific performance methods.

  In recent years, the performance content of a certain piece of music has been evaluated, and after that performance, the performance content evaluation has returned to a certain level (for example, bars) and played again. Techniques to improve performance have also been proposed, but the improvement here is highly likely that the section has been able to be played by “familiarity”, and the performance method peculiar to instruments is essentially improved. It is hard to say that you are doing. Therefore, it cannot be said that the section of the same performance method in another musical piece can be played with the same progress.

  However, in the above configuration, since the performance method which is a weak point in the performance contents of the performer is specified and the subject music suitable for practicing the performance method is presented, the music is played regardless of the previously played music. You can practice the performance method that is the weak point after the performance of the task music. As a result, the performance method itself can be essentially improved so that the same performance method section of another musical piece can be played with the same progress.

Although not particularly limited structure for identifying a playing method is estimated to be the player's weaknesses by weaknesses specific means in this configuration, for example, the first configuration as in the second configuration shown below It is possible to do.

  In this configuration, the model music data corresponding to the performance music indicated by the performance music data acquired by the performance acquisition means is specified from among the plurality of model music data indicating the performance contents when each different music is appropriately played. Model identification means.

  Then, the weak point specifying means acquires, by the performance acquisition means, the performance content of the section to be played by the performance method defined by the model music of the model music indicated by the model music data specified by the model specifying means. When the progress of the performance method in the section is specified by comparing with the performance contents of the same section in the performance music indicated by the performed music data, and the progress is below a predetermined threshold The performance method in the section is specified as a performance method estimated to be a weak point of the performer.

  With this configuration, the degree of progress in a specific section is calculated by comparing the performance contents of the performance music indicated by the performance music data with the performance contents of the model music indicated by the model music data corresponding to the performance music. The performance method to be performed in the section in which the progress level is equal to or less than the predetermined threshold value can be specified as the performance method estimated to be the weak point of the performer.

  In this configuration, in order to calculate the progress of the performance method by the weak point specifying means, for example, based on the performance pattern indicating the performance content of the specific section in the model music, and the performance content of the same section in the performance music What is necessary is just to calculate the progress degree so that it may become a high value, so that the deviation with the performance pattern to show is small.

  As the “performance pattern indicating the performance content” here, for example, the timing at which each sound is output in a musical composition, or a performance method characteristic of the sound output period such as staccato or legato should be performed. In what period is the corresponding sound output in the section, and in what timing is the corresponding sound output in the section to be played by a performance method characterized by the timing of outputting the sound, such as trill or arpeggio This is a pattern such as when each chord is output in a section to be played by a performance method in which chords, that is, two or more sounds are output simultaneously.

Further, in this configuration, a third configuration and result good as shown below in relation to the instrument.
In this configuration, in response to an operation from a player of a musical instrument connected to be able to communicate with the performance evaluation device, performance setting means for setting a musical piece to be played by the musical instrument, and the musical instrument performed by the player Performance detecting means for detecting the content of the performance for

  The performance acquisition means acquires performance data indicating the performance content detected by the performance detection means after the music is set by the performance setting means, and the model specifying means includes a plurality of model music pieces. Among the data, model music data corresponding to the music set by the performance setting means is specified.

  In this configuration, a performance method that is a weak point in the performance content of the music performed by the performer is specified based on the model performance data of the music set by the performer, and a task music suitable for practicing the performance method is determined. Can be presented to the performer.

As the configuration for solving the above problems, even if a program for executing various processing procedures for functioning as all the means provided in the one of the performance evaluation device of the above structure in a computer system may be an electron musical instrument provided with a performance evaluation device according to any one of the above.

If it is these structures, the effect | action and effect similar to the performance evaluation apparatus of the said each structure can be acquired.
Note that the above-described program is composed of an ordered sequence of instructions suitable for processing by a computer system, and is a performance evaluation apparatus or an electronic musical instrument or a user who uses the performance evaluation apparatus via various recording media or communication lines. Is provided.

Embodiments of the present invention will be described below with reference to the drawings.
(1) Overall Configuration As shown in FIG. 1, the electronic musical instrument 1 includes a keyboard 10 having a plurality of keys, an operation panel 20 including various keys and switches, a display panel 30 for displaying various information, a keyboard 10, An interface unit (I / F) 40 that exchanges various signals between the operation panel 20 and the display panel 30, a CPU 52 that controls the operation of the entire electronic musical instrument 1, a ROM 54 that stores programs executed by the CPU 52, and the CPU 52 A sound waveform generated by a DSP (digital signal processor) 64 based on sound information stored in the RAM 56 and the sound source 62 is stored in the RAM 56 for storing the processing result of the above, and converted into an analog waveform by a DAC (digital-analog converter) 66. The output musical sound generator 60, the amplifier 72 that amplifies the voice waveform output from the musical sound generator 60, and the output from the amplifier 72 A speaker 74 for outputting a voice waveform is provided.

Among these, the interface unit 40, the CPU 52, the ROM 54, the RAM 56, and the musical tone generator 60 are connected to each other via a bus 80 so as to communicate with each other.
The interface unit 40 includes two or more key switches for each key of the keyboard 10, and detects the key pressing state based on the open / closed state of these key switches. A time difference between opening and closing of each key switch corresponding to the key is detected as the key pressing strength.
(2) Processing by CPU 52 Hereinafter, various processing procedures executed by the CPU 52 in accordance with a program stored in the ROM 54 will be described.
(2-1) Main Routine First, a main routine that is repeatedly executed after the electronic musical instrument 1 is activated will be described with reference to FIG.

  When this main routine is started, first, through initialization processing such as setting initial values to various variables and releasing a storage area in the RAM 56 (s110), whether or not an event based on an operation on the electronic musical instrument 1 has occurred. Is checked (s120).

If it is determined that an event has occurred in s120 (s120: YES), event processing described later is performed (s130).
After the event processing is performed in this way, or when it is determined that no event has occurred in s120 (s120: NO), the output of the sound by the tone generator 60 according to the operation state of the electronic musical instrument 1, After steady processing such as management of the voice channel used for the output is performed (s140), the process returns to s120.
(2-2) Event Processing Next, the processing procedure of event processing performed in s130 of the main routine will be described with reference to FIG.

In this event processing, first, it is checked whether or not the event that triggered the start is due to a key operation on the keyboard 10 (s210).
If the event is due to the operation of the operation panel 20 in s210 (s210: NO, s220: YES), the panel process corresponding to the operation content is performed (s230), and then the process returns to the main routine.

  In this panel process, first, if the operation content of the operation panel 20 is an evaluation operation indicating that the performance content should be evaluated (s310: YES), an evaluation process for performing an evaluation based on the performance content up to that point. Is performed (s320), the process returns to the main routine.

  This evaluation process is a process of displaying on the display panel 30 the music to be practiced by the performer according to the evaluation result after performing an evaluation based on the performance content, and details thereof will be described later.

  On the other hand, if the operation content of the operation panel 20 is a music selection operation for selecting a music to be evaluated for the performance content (s310: NO, s330: YES), the music selected in this way is set as a model music. After the music selection process is performed (s340), the process returns to the main routine.

  This music selection operation is an operation for selecting one of a plurality of music displayed on the display panel 30 through a predetermined process. In s340, the music selected in this way. Is stored in the RAM 56, and the music is set as a model music.

  In s310, if the operation content of the operation panel 20 is an operation other than the above (s330: NO), a process corresponding to the operation (a process corresponding to the other operation) is performed (s350), and then the process Returns to the main routine.

  As the “other operation” here, for example, the operation mode of the keyboard electronic musical instrument 1 is switched to one of a normal mode in which only the music is played and a lesson mode in which the music to be played is evaluated. There are mode switching operations. When this mode switching operation is performed, processing corresponding to either the normal mode or the lesson mode is set as a variable for the operation mode as processing corresponding to the operation.

  Returning to the event process, if the event that triggered the start is an operation of a key on the keyboard 10 (s210: YES), after the key process corresponding to the key is performed (s240), The process returns to the main routine.

  In this key processing, first, whether or not the operation mode of the electronic musical instrument 1 is the lesson mode (during the lesson) is checked based on the value set in the above-described operation mode variable (s410). .

  When it is determined in s410 that the operation mode is the lesson mode (s410: YES), a value corresponding to the current time is specified (s420). Here, the count value is specified as a value corresponding to the current time by acquiring the count value from a counter that is repeatedly counted up to a predetermined upper limit value after starting the keyboard electronic musical instrument 1 at a predetermined time interval. The

  Next, a parameter indicating the operation state of the key being operated at this time is registered (s430). Here, for the operated key, the operation timing (the count value of the counter in the present embodiment), the key number assigned to the key, and the velocity indicating the strength of the operation are respectively transmitted via the interface unit 40. These are acquired and registered as one sound parameter in a data table (in the same data record) prepared in the RAM 56. The parameter group registered in the data table in this manner indicates a performance pattern when a certain musical piece is played.

  The registration here is performed regardless of the key operation state. However, when two parameters having the same key number are registered in time series, the previously registered parameter is the same as when the key is pressed. It is a parameter, and a parameter registered later becomes a parameter when the key is released. In other words, the time difference between the timings of each of these two parameters represents the period during which the key is pressed, the so-called gate time.

  After finishing s430 in this way, or when the normal mode is set in s410 (s410: NO), it is checked whether or not the key operation that triggered the start of the key process is a key depression. (S440).

  If it is determined in s440 that the operation is a key depression (s440: YES), a sound generation process for starting output of a sound corresponding to the depressed key is performed (s450), and then the process is performed in the main routine. Return to. On the other hand, if it is determined that the operation is a key release (s440: NO), a mute process for terminating the output of the sound corresponding to the key that has been released is performed (s460), and then the process returns to the main routine. Return.

  Returning to the event process, if the event that triggered the start is another event (s220: NO), the process corresponding to the event (process according to the other event) is performed (s250). ) The process returns to the main routine.

Examples of the “other events” here include those caused by pedal operations other than the keyboard 10 and the operation panel 20.
(2-3) Evaluation Process Next, the evaluation process performed in the panel process will be described with reference to FIG.

  In this evaluation process, first, a plurality of model music data stored in the ROM 54 (may be another memory) as data indicating a performance pattern to be acquired when each of a plurality of music is appropriately played. Model music data corresponding to the model music set (see s340 above) at the start of the evaluation process is identified from the inside (s510).

  Next, the performance pattern (parameter group) registered in the data table is set as performance music data, and the music performance data is represented by the music performance data based on the music performance data and the model music data specified in s510. The weak point of the performer in the performance content to be played is specified (s520).

  Here, the performance pattern of the model music defined by the model music data is used as a reference, and this is compared with the performance pattern represented by the music performance data, and the progress of the performance is specified and improved. Based on the degree, the player's weak point in the performance content is estimated.

  For example, for each sound in a performance music specified by performance music data, the output timing is the same sound in the model music specified by the model music data (the same key output at the timing closest to the time axis) The difference between each timing is calculated by comparing with the timing of the sound of the number; Then, the smaller the average value of these deviations, or the lower the number of deviations above a certain threshold, the higher the parameter, the higher the level of progress in “playing along with the rhythm”. Identified as

  If the model music includes a section to be played by a performance method (hereinafter referred to as “first performance method”) characterized by a period in which sound is output, such as staccato or legato, for example, performance music data The output period (gate time) of each sound of the section of the performance music defined by the first performance method is compared with the period of the same sound in the model music defined by the model music data. The amount of deviation is calculated. The parameter that becomes higher as the average value of the deviation amount is smaller or the smaller the deviation amount exceeds the predetermined threshold, the more the “performance by the first performance method” improves. Specified as a degree.

  In addition, if the model music includes a section to be played by a performance method (hereinafter referred to as “second performance method”) characterized by the timing of outputting sound such as trill or arpeggio, for example, performance music data The timing (time) at which the sound is output is compared with the timing of the same sound in the model music defined by the model music data, for each sound of the section of the performance music defined by the second performance method, The amount of deviation is calculated. The parameter that becomes higher the smaller the average value of these deviations or the smaller the deviations above a certain threshold, the better the performance with the second performance method. Specified as a degree.

  Further, if the model music includes a section to be played by a performance method (hereinafter referred to as “third performance method”) that simultaneously outputs a chord, that is, two or more sounds, it is defined by the performance music data. For each chord to be played by the third performance method in the performance music, the degree of coincidence of the output timing of each sound constituting the chord is calculated. The parameter that becomes higher as the average value of the degree of coincidence for each chord in the section is smaller, or as the degree of coincidence is less than a predetermined threshold, It is specified as the level of progress in “playing”.

  In addition, if the model music has a section composed of a specific note value, such as a Hanon practice music, for example, the specified music value in the performance music specified by the performance music data For each sound of the section to be played based on this, the period in which the sound is output is compared with the period corresponding to the specific sound value, and the amount of deviation is calculated. The parameter that becomes higher the smaller the average value of these deviations or the smaller the deviations above a certain threshold, the better the performance with a specific note value. Specified as a degree.

  In this s520, (a) playing in accordance with the rhythm, (b) playing by the first playing method, (c) playing by the second playing method, and (d) playing by the third playing method. (E) playing at a specific note value, the degree of improvement is below a predetermined threshold (if there are multiple applicable items, the one with the lowest degree of improvement) ) Is specified as a performance method presumed to be a weak point of the performer in the performance content.

  After the weak points are identified in this way, a plurality of model songs corresponding to the weak points are set as task music pieces from among the plurality of model music pieces (s530), and these task music items are lists of songs that the performer should practice. Is displayed on the display panel 30 (s540), the process returns to the event processing.

  In the present embodiment, as shown in FIG. 5A, a list in which each of a plurality of model songs is classified as a task song to be practiced to overcome any of the above weak points is a ROM 54 (other memory). This list has a pointer for setting which class should be displayed. In s530, the pointer in the list is changed to the one that should be displayed for those classified as task music corresponding to the weak point.

  Thus, in the above s540, as shown in FIG. 5B, each task music is displayed on the display panel 30, and thereafter, the operation panel 20 can perform an operation of selecting any of the task music. (See s330 and s340 in event processing).

In this s540, the task music is presented by a method of display on the display panel 30, but for the presenting method, other methods (storage of the data indicating the task music in the RAM 56 or the like, May be employed.
(3) Operation and effect In the case of the electronic musical instrument 1 configured as described above, after specifying a performance method that is assumed to be a weak point based on the performance content of the music performance performed by the performer (s520 in FIG. 4), The task music suitable for practicing the performance method can be presented to the performer (s540 in the figure).

  This makes it clear for the performer that the performance method estimated to be a weak point can be practiced if the task music is played, so that the performance of the musical instrument can be improved efficiently through the performance of the task music. become.

  Furthermore, in the above configuration, focusing on the performance method, which is a weak point of the performer, and presenting the subject music suitable for practicing the performance method, the performance of the same music is simply improved by “familiarity”. Rather, it is suitable for essentially improving musical instrument-specific performance methods.

  In recent years, the performance content of a certain piece of music has been evaluated, and after that performance, the performance content evaluation has returned to a certain level (for example, bars) and played again. Techniques to improve performance have also been proposed, but the improvement here is highly likely that the section has been able to be played by “familiarity”, and the performance method peculiar to instruments is essentially improved. It is hard to say that you are doing. Therefore, it cannot be said that the section of the same performance method in another musical piece can be played with the same progress.

  However, in the above configuration, the performance method which is a weak point in the performance content of the performer is specified (s520 in the figure), and the task music suitable for practicing the performance method is presented (s540 in the figure). Regardless of the music played, the performance method that is a weak point can be practiced through the performance of the subject music. As a result, the performance method itself can be essentially improved so that the same performance method section of another musical piece can be played with the same progress.

  Further, in the above configuration, the progress degree of a specific section is calculated by comparing the performance contents of the performance music indicated by the performance music data with the performance contents of the model music indicated by the model music data corresponding to the performance music. Then, the performance method to be performed in the section where the progress level is equal to or less than the predetermined threshold value can be specified as the performance method estimated to be the weak point of the performer (s520 in the figure).

Further, in the above configuration, a performance method as a weak point in the performance content of the music performed by the performer is specified based on the model performance data of the music set by the performer (s340 in FIG. 3), and the performance method is practiced. It is possible to present the task music suitable for the music to the performer.
(4) Modifications The embodiment of the present invention has been described above. However, the present invention is not limited to the above embodiment, and can take various forms as long as they belong to the technical scope of the present invention. Needless to say.

  For example, in the above-described embodiment, the electronic musical instrument 1 that performs with the keyboard 10 is applied to the present invention. However, the present invention can also be applied to musical instruments other than performing with the keyboard 10.

  Moreover, in the said embodiment, the structure which presents the subject music as mentioned above was implemented as a process performed by CPU52 of the electronic musical instrument 1. However, the configuration for presenting the musical composition may be realized by a device separate from the electronic musical instrument 1 as long as the device can communicate with the electronic musical instrument 1.

  Moreover, in the said embodiment, the performance method estimated as a player's weak point was specified, and what was comprised so that a subject music might be shown based on this was illustrated. However, a plurality of performance methods estimated as the weak points of the performer may be specified, and an appropriate task piece may be presented based on these. For this purpose, for example, in s520 of the evaluation process, each performance method whose progress is less than or equal to the threshold value is specified as a weak point, and in s530, the task music suitable for practicing each performance method is 1 What is necessary is just to specify above.

More specifically, in s530, as shown in FIG. 6, a numerical value is used to indicate how suitable each practice method is to practice each performance method (practice suitability). If the numerical value corresponding to the performance method which is the weak point specified in s520 is large, or the weak points specified in s520 are ranked according to the degree of progress, the value of suitability for practice is the rank It is conceivable to select a distribution that conforms to (if there are a plurality of such distributions, the one with a high rank of suitability for practice is high).
(5) Correspondence with the Present Invention In the embodiment described above, the key processing (s240, s430 in FIG. 3) performed in the event processing is the performance acquisition means in the present invention, and the panel processing performed in the event processing ( S320 in FIG. 4 and s520 in FIG. 4 are weak point specifying means in the present invention, and evaluation processing (s320 in FIG. 3 and s530 in FIG. 4) performed in the panel processing is problem extracting means in the present invention. The evaluation processing performed (s320 in FIG. 3 and s540 in FIG. 4) is the music presenting means in the present invention, and the evaluation processing (s320 in FIG. 3 and s520 in FIG. 4) performed in the panel processing is the model specifying means in the present invention. The panel processing (s320, s340 in FIG. 3) performed in the event processing is performance setting means in the present invention. The key processing (s240, s410 to s450 in FIG. 3) performed in the event processing is the performance detection means in the present invention.

Block diagram showing the overall configuration of the electronic musical instrument Flow chart showing main routine Flow chart showing event processing Flow chart showing the evaluation process The figure which shows the list which registers the subject music The figure which shows the list formed by registering assignment music in another embodiment

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Electronic musical instrument, 10 ... Keyboard, 20 ... Operation panel, 30 ... Display panel, 40 ... Interface part, 60 ... Musical sound generation part, 62 ... Sound source, 72. ..Amplifier, 74 ... speaker, 80 ... bus.

Claims (5)

Performance acquisition means for acquiring performance music data that can specify the operation timing when the performer has operated a key on the keyboard instrument and the sound output by the operation as the performance content of the performance of the music performed by the performer with the keyboard instrument When,
Among the performance contents indicated by the performance music data acquired by the performance acquisition means, each of the performance contents related to one or more sections to be performed by a predetermined performance method in the music related to the performance music data. Any of the operation timing for each sound output in the former performance content and the period in which the sound is output is compared with the performance content in the same section when the music indicated by the performance music data is appropriately played By specifying the degree of improvement according to the degree of matching of the performance method related to the parameter including either of these and the same parameter of each sound in the latter performance content, the degree of improvement becomes less than a predetermined threshold value. A weak point specifying means for specifying a playing method that is assumed to be a weak point of the performer,
Task extracting means for extracting one or more task songs corresponding to the performance method specified by the weak point specifying means from a plurality of task songs classified as task songs for practicing a specific performance method,
A performance evaluation apparatus comprising: music presenting means for presenting the task music extracted by the task extraction means as music to be practiced by a performer. Model specifying means for specifying model music data corresponding to the performance music indicated by the performance music data acquired by the performance acquisition means among a plurality of model music data indicating the performance contents when each different music is appropriately played , And
The weak point specifying means includes the performance acquisition means for each performance content in one or more sections to be played by the performance method stipulated by the model music of the model music indicated by the model music data specified by the model specifying means. The performance evaluation device according to claim 1, wherein the performance evaluation device compares the performance contents of the same section in the performance music indicated by the performance music data acquired by the above. In response to an operation from a player of a keyboard instrument communicably connected to the performance evaluation device, a performance setting means for setting a music to be played by the keyboard instrument;
The content of the performance performed on the keyboard instrument performed by the performer comprises at least operation timing when the performer operates a key on the keyboard instrument, and performance detection means for detecting a sound output by the operation. And
The performance acquisition means acquires performance music data indicating the performance content detected by the performance detection means after the music is set by the performance setting means,
The performance evaluation apparatus according to claim 2, wherein the model specifying unit specifies model music data corresponding to the music set by the performance setting unit among a plurality of model music data. Computer
A program that functions as all means provided in the performance evaluation device according to claim 1. An electronic musical instrument characterized in that it is configured as a keyboard instrument comprising the performance evaluation device according to any one of claims 1 to 3.

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