JP3873914B2 - Performance practice device and program - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a performance practice system that allows a user to control the performance mode of a melody part according to the skill of playing an accompaniment part.
[0002]
[Prior art]
Conventionally, there are electronic musical instruments that can select a model song and perform a lesson in the lesson mode. With such an instrument, the user's performance is compared with the sample song data during the lesson. To evaluate. In this case, for example, if the user makes a mistake in the performance, the reproduction of the song data is stopped until the performance is correctly performed, and the practice itself is stopped.
[0003]
Further, as shown in Patent Document 1, when the user's performance deviates to a certain extent as compared with the model, the performance data corresponding to the user performance part in the sample music data is used instead of the user's performance. There is also known a technique for controlling to reproduce the video.
[0004]
[Patent Document 1]
Japanese Patent No. 3166621 gazette
In this way, in the prior art, the song data does not stop playing, or your performance data is played back to the end, so you have confirmed the progress of the lesson. So I didn't feel like enjoying the performances of other parts or enjoying the lessons themselves.
[0006]
[Problems to be solved by the invention]
In view of such inconvenience, the present invention is configured such that the lesson performance by the user affects the performance of the other parts, so that the performance of the other parts can be enjoyed together and the lesson can have a goal. The purpose is to provide a performance practice system.
[0007]
[Means for Solving the Problems]
According to the main feature of the present invention, there is provided a performance practice device (PC) for practicing performance for an accompaniment part of music data (Mn) including a melody part and an accompaniment part, wherein the user performance data (Pn) is based on the performance of the user. ) To the performance data (Ac) of the accompaniment part (CM; S4, S5, S9), and the melody part control means (CT; S6 to S8) for controlling the performance of the melody part according to the result of this comparison , S10, S11), and a performance data processing apparatus (PC) used for practicing the performance of the accompaniment part of the song data including the melody part and the accompaniment part. The user performance data (Pn) based on the user performance is compared with the model performance data (Ac) of the accompaniment part (CM; S , S5, S9) and a performance practice program for executing a procedure comprising the steps (CT; S6-S8, S10, S11) for controlling the performance of the melody part in accordance with the result of this comparison. Is provided. Note that the parentheses are reference symbols for the corresponding embodiments.
[0008]
The melody part control means (CT) of the performance practice device (PC) according to the present invention is poor in performance with respect to the melody part corresponding to the section determined by the comparison means (CM) that the user's performance is wrong. (S6, S8, S10) [Claim 2] or the performance data of the melody part corresponding to the section determined by the comparison means (CM) that the user was able to perform correctly. Thus, the performance can be controlled (S11) [Claim 3].
[0009]
[Action]
In the performance practice system according to the present invention, for example, an accompaniment part of music data (Mn) including a melody part such as a singing voice part and an accompaniment part is used as a lesson part, and the user plays the accompaniment part as the music progresses [PIN → 7 (PP)], the performance data (Sg) of the melody part is reproduced [DIN → MC → 7 (SP)]. At that time, the user performance data (Pn) is compared with the model performance data (Ac) of the accompaniment part, and the performance of the melody part is controlled according to the superiority or inferiority of the accompaniment part performance by the user [CM → CT → MC].
[0010]
For example, according to the comparison result, if the user performs the correct performance, the melody part is reproduced correctly [S4 (YES) → S9 (YES) → S11]. Control is added to the performance data (Sg) of the melody part [S4 (NO) → S6, S8; S9 (NO) → S10]. If the performance is correct, not only can the performance data (Sg) of the melody part be faithfully reproduced, but also control can be applied to improve the performance of the melody part [S11].
[0011]
According to the present invention, the performance of the user's own lesson part in this way affects the performance of the other part's performance, and the melody part that is easy to feel the effect of the skill of the upper / lower is regarded as the other part. So you can enjoy the performance of other parts together. In addition, while the user is not good at playing, other parts are also poor at playing, and other parts are accompanied by the improvement of the user's performance skills, so the lesson can have a goal.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. The following embodiments are merely examples, and various modifications can be made without departing from the spirit of the present invention.
[0013]
〔System configuration〕
FIG. 1 shows a hardware configuration example of a performance practice system according to an embodiment of the present invention. In this example, a performance data processing device composed of a personal computer having a musical tone generation function is used as the performance practice device main body PC. This performance practice device PC includes a central processing unit (CPU) 1, a random access memory (RAM) 2, a read only memory (ROM) 3, an external storage device 4, an input operation unit 5, a display unit 6, a sound source unit 7, a communication An interface (communication I / F) 8 is provided, and these devices 1 to 8 are connected to a bus 9.
[0014]
CPU1 which controls the whole apparatus performs various processes including a performance practice process according to a predetermined control program. The RAM 2 functions as a processing buffer for temporarily storing various types of information used in these processes. For example, during a performance practice process, a parameter list is stored for a melody part of song data (Mn) as a model. A storage area is secured. The ROM 3 stores various control programs including a performance practice program for causing the CPU 1 to perform performance practice processing, various data such as song data (Mn), tables, and the like.
[0015]
The external storage device 4 is a hard disk (HD), a compact disk read only memory (CD-ROM), a flexible disk (FD), a magneto-optical (MO) disk, a digital multipurpose disk (DVD), a memory card, etc. The storage means uses a storage medium, and various control programs such as a performance practice program and data can be stored not only in the ROM 3 but also in the external storage device 4.
[0016]
For example, if no control program is stored in the ROM 3, the control program is stored in the ROM 3 by storing the control program in the external storage device 4 such as an HD or a CD-ROM and reading it into the RAM 2. It is possible to cause the CPU 1 to perform the same operation as in the case, and it is possible to easily add a control program or upgrade the version. For example, a desired performance training device can be realized by installing a performance training program and model song data (Mn) used for performance training processing.
[0017]
The input operation unit 5 includes an input operation element and an input detection circuit, and detects the contents of the setting / control operation by the input operation element such as a mouse and a keyboard by the input detection circuit and introduces the contents into the system. The input operation element includes operation elements such as various keys and switches, and is used to set the operating state of the system and to input various information necessary for performance practice. The display unit 6 controls the display content of a display (display such as a CRT or LCD) 10 connected thereto and the lighting state of various indicators (lamps) in accordance with commands from the CPU 1, and displays the operation for the input operation unit 5. Give assistance. In addition, a large number of song data for performance lessons of musical instruments such as guitars can be prepared in the ROM 3 and the external storage device 4, and a list of these song data can be displayed on the display 10 in accordance with a performance practice program.
[0018]
The sound source unit 7 includes a sound source (including software) and an effect-providing DSP, generates a musical sound signal corresponding to performance data reproduced by the CPU 1, and the sound system 11 connected to the sound source unit 7 has a D / D An A conversion unit, an amplifier, and a speaker are provided, and a musical tone based on a musical tone signal from the sound source unit 7 is generated. That is, the sound source 7 and the sound system 11 form a musical sound generation unit and generate musical sounds based on the performance data after the reproduction process.
[0019]
The communication I / F 8 shown in the figure collectively represents various interfaces connected to a local area network (LAN), a general communication network such as the Internet and a telephone line, or a MIDI network. Various necessary information can be exchanged with various external devices PD such as other computers and MIDI devices. For example, when the control program and various data are not stored in the performance practice device PC, the control program and control data can be downloaded from another computer PD via the communication I / F 8.
[0020]
The external device PD includes a performance operator such as a guitar or a keyboard, and can acquire performance data (PIN) based on the performance operation of the performance operator from the communication I / F 8. For example, from a guitar performance operator, guitar performance data based on a user's performance operation can be input to the performance practice device PC. In the following specific example, the reference symbol “PD” is used for a guitar performance operator which is one of the external devices PD.
[0021]
[Example of overall operation]
FIG. 2 is a functional block diagram showing an operation example of the entire performance practice system according to one embodiment of the present invention. In accordance with the performance practice program, the CPU 1 performs the illustrated blocks (DIN, PIN, CM, CT, etc.) on the music data stored in the ROM 3 and the external storage device 4 and the performance data from the performance operator PD. Perform operational functions. In this operation example, a case where the performance operator PD is a guitar and melody data with lyrics is converted into sound will be described. Instead of melody data with lyrics, normal MIDI data without lyrics may be used.
[0022]
Here, the main functions of the performance practice system according to one embodiment of the present invention will be schematically described with reference to FIG. In this performance practice system, it is possible to practice performance using the accompaniment part as a lesson part for the music data Mn including the melody part (Sg) and the accompaniment part (Ac). As the music progresses, the performance data Sg of the melody part is reproduced (DIN → MC → SP) in parallel with the user playing the accompaniment part (PIN → PP). At that time, the comparison / determination unit CM compares the user performance data Pn based on the user's performance with the performance data Ac of the accompaniment part, and the melody control unit CT controls the performance of the melody part according to the comparison result. For example, with respect to the melody part corresponding to the section in which it is determined that the user's performance is wrong, control is performed so that the performance of the melody part is poor.
[0023]
Hereinafter, FIG. 2 will be described in more detail. When a list of song data is displayed according to the performance practice program and the user selects a desired lesson song from the list, the data input unit DIN reads the corresponding song data Mn from the ROM 3 or the external storage device 4 into the RAM 2. The music data Mn is composed of performance data Sg and Ac of the melody part and accompaniment part, the performance data Sg of the melody part is output to the melody data processing unit MC and the melody control unit CT, and the performance data Ac of the accompaniment part is compared. It is output to the determination unit CM.
[0024]
In this example, melody data with lyrics is used for the performance data Sg of the melody part. The performance data Ac of the accompaniment part is guitar chord playing data that is an example of user performance, and may be referred to as exemplary accompaniment data as shown. Here, the melody data with lyrics Sg is “melody + lyric” data composed of a melody data portion representing the main melody of the song and a lyric data portion representing the lyrics corresponding thereto, and is also called singing voice data. Correspondingly, the melody part may be called a singing voice part.
[0025]
In accordance with the progress of the song data, the performance data (melody data with lyrics) Sg of the melody part is reproduced through the path of the data input unit DIN → the melody data processing unit MC → the melody musical tone generation unit SP of the sound source 7. In other words, the melody musical sound generating unit SP has a ““ melody + lyric ”→ speech” conversion function for converting the lyrics in the lyric data portion in the melody data Sg with lyrics into the voice according to the main melody of the melody data portion, and the melody data Based on the melody data with lyrics Sg processed by the processing unit MC, voice data for reproducing the lyrics in accordance with the main melody of the music is generated.
[0026]
In parallel with this, when the user plays the guitar performance operator PD by playing the chord, the user performance data input unit PIN receives the chord playing user performance data Pn input from the guitar performance operator PD by the user's performance. While outputting to the comparison judgment part CM, it outputs to the real performance musical sound production | generation part PP of the sound source 7 via a performance data processing part. In the sound source 7, musical sound data based on both performance data Sg and Pn is generated by both musical sound generation units SP and PP and sent to the sound system 11.
[0027]
Now, the comparison determination unit CM compares the user performance data Pn based on the guitar performance with the model accompaniment data (chord playing data) Ac, and sends the comparison result to the melody control unit CT. The melody control unit CT calculates a change parameter for the melody data Sg according to the content of the comparison result in the comparison determination unit CM, and sends the calculated change parameter to the melody data processing unit MC. For example, when the user's performance input (Pn) is wrong, the change parameter of the melody data Sg in the corresponding range is calculated so that the singing voice emitted from the sound system 11 is poor. As the change parameter, not only the pitch but also any musical sound parameters such as note-on timing, tempo, effect, pitch bend, and the like can be applied.
[0028]
The melody data processing unit MC converts the melody data with lyrics Sg from the data input unit DIN into data suitable for reproduction processing with the sound source 7, and the data content corresponds to the change parameter from the melody control unit CT. Processing to change is performed, and the processed melody data Sg with lyrics is sent to the melody musical sound generation unit SP of the sound source 7. For example, the corresponding parameter of the melody data with lyrics Sg is controlled so that the range of performance input errors as described above is reproduced with a poor singing voice according to the change parameter from the melody control unit CT.
[0029]
[Example of generating change parameters]
In the performance practice system according to one embodiment of the present invention, the result of comparing the user's performance input (Pn) with the accompaniment part (Ac) in the song data according to the functions of the comparison determination unit CM and the melody control unit CT described above ( Depending on CM, the musical tone parameter of the melody part (Sg) can be changed to control the performance of the melody part (Sg). FIG. 3 is a flowchart showing an example of generation of change parameters according to one embodiment of the present invention. This change parameter generation flow mainly corresponds to the functions of the performance comparison unit CM and the melody control unit CT described above. In FIG. 3, the user performance data Pn is simply expressed as “performance input”.
[0030]
When this flow starts, the CPU 1 first detects whether or not the chord playing performance data Pn by the user's guitar performance operator PD has been input (step S1: In the following, the symbol “S...” Alone is detected. Until the performance data Pn is input (S1 → YES), the input of the performance data Pn is awaited (S1 → NO → S1).
[0031]
When the performance data Pn by the user performance is input (S1 → YES), the parameter list on the RAM 2 is initialized with the event in the melody data Sg in the section corresponding to the input performance data Pn (S2). ). This parameter list includes, for example, parameters such as timing, pitch, length, strength, and lyrics of note events in the melody data Sg in the section in time series. However, the lyrics may be another event.
[0032]
After the parameter list initialization (S2), the root tone and type of the user performance data Pn are detected (S3). Here, in the case of a combination of pitches that cannot be detected, the default root tone and type are set, and this default can be set by the user. Next, it is determined whether or not the root tone and type of the user performance data Pn match the chord of the accompaniment data Ac (S4).
[0033]
If the chord root tone or type mismatch between the user performance data Pn and the accompaniment data Ac (S4 → NO), whether or not the root tone of the user performance data Pn is different from the chord of the accompaniment data Ac. Is determined (S5). Here, when the roots match, that is, when the type of the performance data Pn is different from the chord of the accompaniment data Ac (S5 → NO), the parameter list is changed in the pitch replacement step (S6). Thereafter, the process proceeds to the parameter list transmission step (S7). That is, in the case of “type difference” of the chord (S5 → NO), in the pitch replacement step (S6), a sound different from the constituent sound of the user performance data Pn is detected among the chord constituent sounds of the accompaniment data Ac, Among the note events in the parameter list, the pitch of the note event having the pitch name corresponding to the detected sound is replaced with the pitch having the pitch name of the constituent sound of the user performance data Pn.
[0034]
On the other hand, when the root tone of the performance data Pn is different in the root tone determination step (S5) (S5 → YES), the root tone of the user performance data Pn and the chord root of the accompaniment data Ac are determined as “difference of root tone” of the chord. And the process of shifting the pitch of each note event in the parameter list (S8), the process proceeds to the parameter list transmission step (S7). If not only the root tone but also the type is different, as indicated by a broken line, the process further proceeds to the pitch replacement step (S6) and the above-described pitch replacement is performed, and then to the parameter list transmission step (S7). move on.
[0035]
When it is determined in the root note and type determination step (S4) that the root note and type of the chord match (S4 → YES), the timing of the user performance data Pn with respect to the chord of the accompaniment data Ac is further determined. (S9). Here, if the timings do not match, it is determined that “timing is different” (S9 → NO), and the timing is shifted by the shift of the user performance data Pn with respect to each note event in the parameter list (S10). And it progresses to a parameter list transmission step (S7).
[0036]
If the timings match (S9 → YES), it is determined that the key has been played correctly, and information that can be heard in a good performance is added to or adjusted for the note event in the parameter list (S11). . For example, reverb is applied to the corresponding position, or the length of each note is adjusted to be legato-like. After this processing, the process proceeds to the parameter list transmission step (S7).
[0037]
In the parameter list transmission step (S7), processing for sending the contents of each parameter list changed in each parameter changing step (S6, S8, S10, S11) to the melody data processing unit MC is executed. After this process, the process returns to the performance input detection step (S1), and the above-described operation processes (S1 to S11) are repeated until an end instruction is given.
[0038]
[Various Embodiments]
As mentioned above, although this invention was demonstrated about one Example, this invention can be implemented in a various aspect. For example, in the embodiment, a guitar performance operator is used, the lesson part is a chord playing part, and the melody part is a singing voice part (melody data with lyrics). May be the left hand part and the melody part may be the right hand part.
[0039]
In addition, the processing content for causing the melody part to be played poorly / skillfully in each parameter changing step (S6, S8, S10, S11) in the embodiment is merely an example. The method of making the melody part unsatisfactory when the user makes a mistake in performance is not limited to the embodiment, and for example, the pitch of the melody part may be changed depending on the degree of the mistake. Moreover, you may control by tempo. Furthermore, when the melody part is a singing voice part, there is also a method of preventing the lyric from being pronounced as one of the methods for making it poor.
[0040]
About the process (S11) when playing well, you may make it apply an effect to a singing voice (melody) part. For example, reverb, vibrato, intonation, volume, etc. can be added.
[0041]
In evaluating (comparing / determining) a user's performance, in the embodiment, the pitch and note-on timing are taken into account, but in addition to this, for example, the strength and length of each user's sound are taken into account. be able to.
[0042]
The melody part is controlled not only by controlling the musical tone parameters of one melody data, but also by preparing multiple levels of melody data of lower / upper tiers for the same song in advance. The melody data to be played back may be switched. For example, poor data may be stored together with some types of model music data.
[0043]
As a method for reproducing the singing voice part, an engine that creates a singing voice from the pitch, length, and lyrics of the MIDI format may be used, or other methods such as using sampling data may be used.
[0044]
The presentation of lesson contents when performing a lesson using a performance operator may be, for example, a method of visually informing the user with a lamp or the like provided on the performance operator, or a method of displaying a score or the like. Further, regarding the evaluation of the user performance, not only the reproduction control of the music data but also a score or a message may be presented to the user according to the evaluation.
[0045]
The expression “accompaniment part” is not limited to the chord playing part as in the embodiment. For example, the drum part, the rhythm part, the bass part, the part that plays phrases other than the melody, the part that plays distributed chords, etc. This refers to all parts other than the melody part.
[0046]
【The invention's effect】
As described above, according to the present invention, the music data including the melody part and the accompaniment part is reproduced when the user reproduces the performance data of the melody part in parallel with the performance of the accompaniment part as the lesson part. For example, if the user plays correctly, the melody part is played back correctly, and if the user performs poorly, the melody part is also poorly matched. Since the performance of the user's own lesson part affects the upper / lower of the performance of the other part, the performance of the other part can be enjoyed together. In addition, while the user's performance is poor, the performance of the other parts is also poor, and when the user's performance skill is improved, the performance of the other parts follows this, so the lesson can have a goal.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a hardware configuration example of a performance practice system according to an embodiment of the present invention.
FIG. 2 is a functional block diagram showing an operation example of the entire performance practice system according to one embodiment of the present invention.
FIG. 3 is a flowchart showing an example of generation of a change parameter according to one embodiment of the present invention.
[Explanation of symbols]
PC performance training device (personal computer),
PD external devices (guitar performance controls, etc.)
DIN, PIN song data input section and user performance data input section,
CM comparison / determination unit,
CT melody control unit,
MC melody data processing section,
SP Melody musical tone generator.

Claims (4)

A performance practice device for practicing the performance of an accompaniment part of music data including a melody part and an accompaniment part,
A comparison means for comparing user performance data based on the user's performance with the model performance data of the accompaniment part;
A performance practice device comprising melody part control means for controlling the performance of the melody part according to the result of the comparison. The melody part control means controls the melody part corresponding to the section determined by the comparison means that the user's performance is wrong so that the performance is poor. The performance practice device described in 1. The melody part control means controls the performance data of the melody part corresponding to the section determined to be correctly played by the user by the comparison means so that the performance is good. Item 3. The performance practice device according to Item 1 or 2. For a performance data processing apparatus used for practicing the performance of an accompaniment part of music data including a melody part and an accompaniment part,
Comparing user performance data based on the user's performance with the model performance data of the accompaniment part;
The performance practice program for performing the procedure which consists of the step which controls the performance of a melody part according to the result of this comparison.

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