JP2010128158A - Device and program for supporting music practice - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a music practice support device for supporting a user to practice performance of various musical instruments at optional sound volume and according to the rhythm. <P>SOLUTION: In the music practice support device, a threshold value calculating means 5 obtains a threshold value for determining whether display is to be performed or not on the basis of sound volume information obtained by a sound volume information acquisition means 3 from input sounds and, based on the threshold value, determination on display is carried out and clarified sound production periods are displayed. Thus, the user can practice keeping rhythm at optional sound volume. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a music practice support device and a music practice support program that support musical instrument practice and vocal music practice.

  2. Description of the Related Art Conventionally, in practice of musical instruments and vocal music, music practice support devices have been proposed for visualizing sounds produced by themselves and comparing them with examples.

  For example, a technique for assisting practice for maintaining a constant pitch and volume by displaying a change in pitch and volume of an input sound in a continuous waveform is disclosed (for example, Patent Document 1). reference).

  In another example, a model rhythm is presented as a figure (reference sound figure) formed by volume (vertical axis) and time (horizontal axis), and the input sound is also represented by volume change information and time information. It is made into a figure and compared with the figure in the model.

  The height of the reference sound figure is determined based on the result of the user previously inputting a musical sound for a predetermined time and calculating the average value from the volume information.

Further, the length of the reference sound figure is determined by the tempo and playing style of the metronome function, or is calculated as an average value of the length of the sound repeatedly input by the user in advance for a predetermined time like the height. Note that the tone generation interval is clarified by truncating musical tone inputs with a volume below a predetermined value (see, for example, Patent Document 2).
JP 2007-2119016 A JP 2008-22505 A

  However, in the method of Patent Document 1 in which the input sound is displayed in a continuous waveform, the change in volume is always displayed continuously even if there is no input sound. For this reason, when practicing a short sound intermittently in sync with a certain rhythm, such as staccato, it is difficult to understand the breaks in the sound, and it is necessary to check whether the rhythm used as an example is accurately pronounced. I couldn't express it visually.

  Further, in the method of Patent Document 2 in which the input sound and the rhythm that serves as an example are displayed by means of a graphic, the sound breaks and the sound generation interval can be clearly expressed by setting the threshold value of the volume. However, the sound volume threshold is calculated from the average value of sound volume information input by the user before practice, and is fixed during practice. For this reason, when the volume of the input musical sound is lower than the specified level or does not reach the predetermined threshold value, it may be determined that no sound is input. As a result, when the same rhythm was practiced with instruments with different volumes, or when the singer changed, it was necessary to reset the reference volume each time. Also, because the threshold is fixed, even the same instrument or singer could not practice rhythm by changing the volume.

  The present invention has been made in view of such circumstances, and provides a music practice support device for a user to practice playing according to a rhythm at a free volume regardless of the type of musical instrument or the performance method. Is.

  In order to solve the above problems, the present invention provides signal input means for inputting a musical instrument or sound, volume information acquisition means for acquiring volume information from an input signal of the signal input means, and acquisition from the volume information acquisition means. Volume information storage means for storing the volume information, threshold calculation means for calculating a threshold for display from the volume information stored in the volume information storage means, threshold values calculated by the threshold calculation means, and volume information of the input signal Display determination means for determining whether to output the display, and for visually displaying the input signal corresponding to the length of time during which the input signal determined to be output by the display determination means is input It has a display control means for performing control, and a display means for displaying the display content controlled by the display control means.

  The present invention further includes a rhythm storage means for storing a rhythm pattern for displaying a predetermined rhythm pattern as a model on the display means, and the display control means is a rhythm pattern stored in the rhythm storage means. Is controlled on the display means simultaneously with the input signal.

  The present invention further includes sound generation control means for converting predetermined rhythm patterns stored in the rhythm storage means into data for generating sound, and sound generation means for sound generation based on the data converted by the sound generation control means. It is characterized by.

  The present invention further includes rhythm setting means for creating a rhythm pattern stored in the rhythm storage means and setting the rhythm pattern to a displayable pattern, wherein the rhythm setting means is an intermittent input from the signal input means. It is characterized in that a rhythm pattern is set by detecting the time length of an effective input signal from the volume information of music and voice.

  The present invention further includes rhythm input means for a user to input a rhythm pattern stored in the rhythm storage means, and the rhythm setting means sets a rhythm pattern from the rhythm input by the rhythm input means. It is characterized by that.

  In the present invention, the rhythm input means is constituted by an input device to which one or a plurality of note information is assigned, and the display control means is a time length of a sound indicated by each note inputted by the rhythm input means. The display unit is controlled to display a figure corresponding to the rhythm pattern as the rhythm pattern.

  The present invention further includes tempo setting means for setting a tempo of the rhythm pattern stored in the rhythm storage means, and the display control means is configured to display a graphic of the rhythm pattern according to the tempo set by the tempo setting means. Control is performed to relatively change the length and display the real time of the length of the figure on the display means.

  Further, the present invention is a program that functions as a music practice support device that visually displays temporal changes in input musical sounds and voices, and has a volume information acquisition function that acquires volume information from input musical instruments and voices And a threshold calculation function for calculating a threshold for display from the acquired volume information, a display determination function for comparing the threshold and the volume information of the input signal, and determining whether to perform display output, and an input signal determined to be displayed and output And a display control function for performing control for visually displaying the image.

  According to the music practice support device of the present invention, the threshold value calculation means sets a threshold value for constantly checking and displaying the signal level from the input tone or voice, and the display determination means is based on the calculated threshold value. Determine whether the input signal is displayed or not. As a result, it is possible to clearly display the sound generation section while the sound is continuously input regardless of the volume input.

  Therefore, even when the instrument or singer changes or when the same rhythm pattern is practiced at a different volume, the music can be practiced without resetting the input level.

Hereinafter, a preferred embodiment of the music practice support device of the present invention will be described in detail with reference to FIGS.
(First embodiment)
FIG. 1 is a block diagram showing a schematic configuration of the music learning support device of the first embodiment. Signal input means 1 for inputting musical sounds and voices, a microcomputer 2 for performing processing for displaying the input sound, volume information acquisition means 3 for acquiring volume information from the input sound, and for storing the acquired volume information Volume information storage means 4, threshold value calculation means 5 for calculating a threshold value for display from volume information, display determination means 6 for determining whether to display an input signal, display control means for performing control for display 7. Consists of display means 8 for actually displaying.

  Signals such as musical sounds and voices input from the signal input means 1 are amplified and shaped and input into the microcomputer 2 as rectangular wave input signals.

  In the microcomputer 2, first, volume information acquisition means 3 performs processing such as A / D conversion, and acquires volume information from the input signal. The acquired volume information is temporarily stored in the volume information storage means 4. At this time, by providing a minimum volume at which it is determined that a signal has been input, it is possible to start the sounding section from the timing when the minimum volume is exceeded.

  Next, processing for calculating a threshold value that is a criterion for determining whether or not to display the input signal is performed by the threshold value calculation means 5 from the stored volume information. The display determination means 6 compares the calculated threshold value with the volume of the input signal input most recently, and determines whether the input signal is visually displayed.

  FIG. 2 is a flowchart showing an example of processing performed from the sound volume information acquisition unit 3 to the threshold value calculation unit 5 and the display determination unit 6 in the microcomputer 2.

  First, volume information is acquired from the most recently input signal (S101) and stored in volume information storage means (S102). For the volume information, the following processing is performed only for those exceeding the minimum volume (S103).

  Next, the maximum volume of the input signal continuously input is compared with the acquired volume information (S104). When the input signal is smaller than the maximum volume, the threshold value does not need to be updated and is not calculated. On the contrary, when the input signal is larger than the maximum volume, that is, when the input signal is the maximum volume of the input signal that is continuously input, the threshold value is calculated. In this example, 1/2 of the maximum volume is set as a threshold (S105). The processing so far is performed by the threshold value calculation means.

  Further, the volume information of the latest input signal is compared with the threshold value with respect to the set threshold value (S106). When the volume information of the input signal is larger than the threshold value as a result of the comparison, it is determined that display is performed (S107). On the other hand, if it is smaller than the threshold value, no display is performed (S108). In this case, it is determined that the input signal is invalid. This means that the sound may have been interrupted.

  As another method for calculating the threshold value, the user may set what percentage of the maximum volume is set as the threshold value by separately providing a threshold value setting unit (not shown). In addition, a plurality of threshold values are calculated such as twice, 1/2, and 1/4 of the maximum volume, and a method for determining whether to perform display is performed in stages, or the display method is changed for each volume range. You may perform processing, such as doing.

  When it is determined that the display is determined by the display determination unit 6 in this way, the display control unit 7 performs control for visually displaying the signal on the display unit 8.

  FIG. 3 shows an example of displaying input signals. In this example, the change in volume of the input signal over time is displayed in the lower row, and in the upper row, musical sounds and voices are input from the original data in the lower row within the range of the minimum volume and the threshold value calculated during input. The input time is displayed graphically. This figure becomes the rhythm pattern detected from the sound input by the user.

  As described above, even when the volume of continuously input sound changes variously, it is possible to clarify the sound generation section based on the constantly calculated threshold value.

In addition, it is possible to separately provide means (not shown) for acquiring pitch information as well as volume information for the input sound, and it is also possible to display a change in pitch in a part of the display example. As a result, it is possible to practice while simultaneously displaying the rhythm pattern and pitch of the input sound.
(Second embodiment)
FIG. 4 is a block diagram showing a schematic configuration of the music learning support device of the second embodiment. The present embodiment is characterized in that by adding the rhythm storage means 9, the sound generation control means 10 and the sound generation means 11, a rhythm pattern serving as a model is displayed and pronounced simultaneously with the input musical sound and voice. 1 to 8 in the block diagram have the same functions as those in FIG. 1 of the first embodiment, and a description thereof will be omitted.

  A predetermined rhythm pattern is stored in advance in the rhythm storage means 9 of FIG. FIG. 5 shows an example in which an input signal and a model rhythm pattern are displayed simultaneously.

  In the display area, the rhythm pattern stored in the rhythm storage means 9 is preliminarily displayed as a graphic representing the length of time to be pronounced.

  Next, when the user inputs sound with reference to the rhythm pattern of the model, the detected rhythm pattern of the user input is displayed as a figure below the rhythm pattern of the model as in the example of FIG.

  In this way, by comparing the model and the rhythm pattern input by the user at the same time, it is possible to visually grasp a shift in timing.

  Further, by converting the data to be generated by the sound generation control means 10 based on the rhythm pattern in the rhythm storage means 9 and generating the sound by the sound generation means 11, it is possible to show the example auditorily.

In addition, assisting rhythm practice by displaying such deviations by time, the number of times of deviation, etc., or by making judgments such as OK / NG when the deviation is within a predetermined range. Is also possible.
(Third embodiment)
FIG. 6 is a block diagram showing a schematic configuration of the music learning support device of the third embodiment. In the present embodiment, the rhythm setting means 12, the rhythm input means 13 and the tempo setting means 14 are added to set and display a pattern input by the user as a new rhythm pattern. 6 to 11 have the same functions as those in FIG. 4 of the second embodiment, and a description thereof will be omitted.

  FIG. 7 is an external view of an embodiment of a music practice support device provided with a rhythm input means. Main body case 15, power switch 16, tempo setting switch 17, rhythm input switch 18, note switch 19, microphone and speaker hole 20, LCD 21 It consists of The function will be described with reference to FIGS.

  First, the power switch 16 is pressed to turn on the power. Next, a model rhythm is input. First, a method of setting with the rhythm input switch 18 will be described. When the rhythm input switch 18 is pressed, a graphic based on information on the timing of pressing the rhythm input switch 18 and the length of the pressed time is displayed in the model rhythm display portion on the upper side of the LCD 21. By repeating this for a specified time, the input rhythm is displayed as a rhythm pattern as a figure.

  In FIG. 6, the rhythm setting unit 13 forms a rhythm pattern as a model based on an input from the rhythm input unit 13 corresponding to the rhythm input switch 18, and stores it in the rhythm storage unit 9. The stored user input rhythm pattern is displayed in the display area of the model rhythm pattern.

  As another rhythm setting method, an input method using the note switch 18 will be described. Each note switch 18 indicates the length of the sound, and when the note switch is pressed, a graphic based on the length of the sound corresponding to the note is displayed on the model rhythm display portion on the upper part of the LCD 21. By repeating this for a specified time, a figure with a relative length is displayed as a rhythm pattern according to the number and type of notes within the specified time.

  In FIG. 6, a rhythm pattern is formed by the rhythm setting means based on the input from the rhythm input means 13 corresponding to the note switch 19, stored in the rhythm storage means 9 and displayed.

  By the way, it is also possible to determine the length of a note having an absolute value according to the tempo set by the tempo setting switch 17 and display it as a model rhythm pattern.

  FIG. 8 is a table showing sound times corresponding to notes and rests by tempo. For example, in the case of tempo 60, the length of a sound corresponding to a quarter note is 1 second, and in the case of an eighth note, it is 0.5 seconds. Based on this table, it is possible to simultaneously display not only the figure indicating the length of the sound corresponding to the pressed note switch 19 but also the time to be pronounced indicated by the figure on the example rhythm display portion on the upper part of the LCD 21. is there.

  In FIG. 6, the rhythm setting means forms a rhythm pattern based on the tempo setting result of the tempo setting means 14 corresponding to the tempo setting switch 17.

  When a musical sound or voice is input from the microphone and the speaker 20 hole to the rhythm pattern thus set, the rhythm pattern based on the minimum volume and the threshold is detected and displayed on the LCD 21. It is possible to practice taking the rhythm accurately while comparing the input pattern with the set example rhythm pattern.

  It is also possible to set the rhythm pattern of the user's musical sound or voice input from the microphone and speaker hole 20 as a model rhythm pattern as it is. In this case, the user input rhythm pattern determined by the display determination unit 6 is formed as a model rhythm pattern by the rhythm setting unit 10 and stored in the rhythm storage unit 9.

  The rhythm patterns stored in these rhythm storage means 9 can be sounded from the microphone and speaker hole 20 as in the second embodiment.

  In this way, the rhythm pattern that serves as a model can be set in a form that is close to the actual performance, such as not only the preset pattern, but also the user playing directly and inputting notes based on the score. it can. Therefore, it is possible to perform more practical practice.

  In the above-described embodiment, an encoding process is performed by recording a program for realizing each function on a computer-readable recording medium, causing the computer system to read the program recorded on the recording medium, and executing the program. And you may perform a decoding process. Here, the “computer system” may include an OS and hardware such as peripheral devices. Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used. The “computer-readable recording medium” means a flexible disk, a magneto-optical disk, a ROM, a writable nonvolatile memory such as a flash memory, a portable medium such as a CD-ROM, a hard disk built in a computer system, etc. This is a storage device.

  Further, the “computer-readable recording medium” means a volatile memory (for example, DRAM (Dynamic DRAM) in a computer system that becomes a server or a client when a program is transmitted through a network such as the Internet or a communication line such as a telephone line. Random Access Memory)), etc., which hold programs for a certain period of time. The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line. The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, and what is called a difference file (difference program) may be sufficient.

It is a block diagram which shows schematic structure of the music practice assistance apparatus of 1st embodiment. It is a flowchart which shows the flow of a process of the music practice assistance apparatus of 1st embodiment. It is an example of a display of the music practice assistance apparatus of 1st embodiment. It is a block diagram which shows schematic structure of the music practice assistance apparatus of 2nd embodiment. It is an example of a display of the music practice assistance apparatus of 2nd embodiment. It is a block diagram which shows schematic structure of the music practice assistance apparatus of 3rd embodiment. It is an external view of the music practice assistance apparatus of 3rd embodiment. It is a table | surface which shows the response | compatibility of the tempo setting of the music practice assistance apparatus of 3rd embodiment, and the pronunciation time which each note has.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Signal input means 2 Microcomputer 3 Volume information acquisition means 4 Volume information storage means 5 Threshold value calculation means 6 Display determination means 7 Display control means 8 Display means 9 Rhythm storage means 10 Sound generation control means 11 Sound generation means 12 Rhythm input means 13 Rhythm setting means 14 tempo setting means 15 body case 16 power switch 17 tempo setting switch 18 rhythm input switch 19 note switch 20 microphone and speaker 21 LCD

Claims (8)

A signal input means for inputting musical instruments and voices;
Volume information acquisition means for acquiring volume information from an input signal of the signal input means;
Volume information storage means for storing volume information acquired from the volume information acquisition means;
Threshold calculation means for calculating a threshold for display from the volume information stored in the volume information storage means;
Display determination means for comparing the threshold value calculated by the threshold value calculation means with the volume information of the input signal and determining whether to display and output;
Display control means for performing control for visually displaying the input signal corresponding to the length of time during which the input signal determined to be output by the display determination means is input;
Display means for displaying the display content controlled by the display control means;
A music practice support device characterized by comprising: Rhythm storage means for storing a rhythm pattern for displaying a predetermined rhythm pattern as a model on the display means;
2. The music practice support device according to claim 1, wherein the display control means performs control for displaying the rhythm pattern stored in the rhythm storage means on the display means simultaneously with the input signal. A sound generation control means for converting the predetermined rhythm pattern stored in the rhythm storage means into data for sounding;
3. The music practice support device according to claim 2, further comprising sound generation means for generating sound based on the data converted by the sound generation control means. Rhythm setting means for creating a rhythm pattern stored in the rhythm storage means and setting it to a displayable pattern;
3. The music according to claim 2, wherein the rhythm setting means sets a rhythm pattern by detecting a time length of an effective input signal from intermittent tone and sound volume information inputted from the signal input means. Practice support equipment. Rhythm input means for a user to input a rhythm pattern stored in the rhythm storage means;
3. The music practice support device according to claim 2, wherein the rhythm setting means sets a rhythm pattern from the rhythm input by the rhythm input means. The rhythm input means is constituted by an input device to which one or a plurality of note information is assigned,
6. The display control unit according to claim 5, wherein the display control unit controls the display unit to display a figure corresponding to a time length of a sound indicated by each note input by the rhythm input unit as a rhythm pattern. Music practice support equipment. Tempo setting means for setting the tempo of the rhythm pattern stored in the rhythm storage means,
The display control means performs control to relatively change the figure length of the rhythm pattern according to the tempo set by the tempo setting means, and to display the actual time of the figure length on the display means. The music practice support device according to any one of claims 2 to 6, A program that functions as a music practice support device that visually displays temporal changes in input musical sounds and voices,
Volume information acquisition function to acquire volume information from the input instrument and voice,
A threshold value calculation function for calculating a threshold value for display from the acquired volume information;
A display determination function for comparing the threshold value and the volume information of the input signal and determining whether to output the display;
A display control function for performing control for visually displaying an input signal determined to be output;
A music practice support program characterized by having a computer execute.

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