JP2006215167A - Performance practice device and performance practice program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize a performance practice system which enables a user to carry out effective practice. <P>SOLUTION: Music data mel is classified to a plurality of lessen areas and lessen area data la including start conditions of each lessen area is provided. When the lessen area is moved according to an area movement switch operation, the start conditions of the lessen area of a movement destination are investigated by referencing the lessen area data la. The music data mel made correspondent to the lessen area of the movement destination is reproduced to make a user carry out the practice when the start conditions are fulfilled. If, on the other hand, the start conditions are not fulfilled, the lessen area is returned to the lessen area prior to the movement instruction and the music data mel made correspondent to the lessen area is reproduced to make the user carry out the practice. As a result, the user himself or herself eventually carry out the practice spontaneously from the favorite lessen area to the lessen area of a high difficulty level and thus the user is able to carry out the effective performance practice without reducing the volition for the practice. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a performance practice device and a performance practice program for reproducing music data of practice music to practice performance operations.

  2. Description of the Related Art Conventionally, a performance practice device that reproduces music data of a practice song to practice performance operation is known. As an apparatus of this type, for example, in Patent Document 1, music data is divided into a plurality of sections and read out, and the music data and performance data input in accordance with the performance operation are compared for each section. If they match, the song data of the next section is read. On the other hand, if they do not match, the song data of the same section is read again, and repeated until it becomes possible to play the missed section without making a mistake. A technique is disclosed that allows the user to advance to the next section after practice.

Japanese Patent Laid-Open No. 5-297795

By the way, in the performance practice device disclosed in Patent Document 1, the practice tune is divided into a plurality of sections, and if a certain section can be played without making a mistake, the performance practice of the next section is advanced. Therefore, for example, if it is a practice song that has a high performance difficulty from the beginning of the song, if you are a beginner who is not familiar with the performance operation, practice mistakes frequently occur and you can not proceed to the performance practice of the next section There is a problem that motivation is reduced and effective performance practice cannot be performed.
Therefore, the present invention has been made in view of such circumstances, and an object thereof is to provide a performance practice device and a performance practice program that can perform effective performance practice.

  In order to achieve the above object, according to the first aspect of the present invention, song data representing each sound of a practice song is divided into a plurality of lesson areas, and corresponding song data is reproduced for each divided lesson area. Area data storage means for storing area data including a start condition for an area, area designation means for designating a movement destination area from among a plurality of lesson areas, and area data of the movement destination area designated by the area designation means. A determination unit that reads from the lesson area data storage unit and determines whether the start condition of the destination area is satisfied, and corresponds to the destination area when the determination unit determines that the start condition is satisfied On the other hand, it has a reproducing means for reproducing the song data corresponding to the movement source area when the song data is reproduced and the start condition is not satisfied. It is characterized in.

  According to the second aspect of the present invention, there is provided a start condition for dividing the song data representing each sound of the practice song into a plurality of lesson areas and reproducing the corresponding song data for each of the divided lesson areas. Area data storage means to store area data with lesson area to be cleared, clear level necessary to clear this lesson area and performance level evaluated in performance practice, and move from within lesson areas The area designation means for designating the destination area, and the clear level and performance level in the lesson area to be cleared before proceeding to the movement destination area with reference to the area data of the movement destination area designated by the area designation means, Read the area data storage means, and whether the read performance level satisfies the start condition exceeding the clear level If the determination means determines that the start condition is satisfied, the music data corresponding to the movement destination area is reproduced, and if the start condition is not satisfied, the movement source area is reproduced. And reproducing means for reproducing music data corresponding to the above.

  In the invention according to claim 3, area designation processing for designating a destination area from among a plurality of lesson areas, and song data representing each sound of practice songs are divided into a plurality of lesson areas, and each divided lesson is divided. For each area, area data including a start condition for playing the corresponding song data is stored, and the area data of the destination area designated by the area designation process is referred to from the area data. A determination process for determining whether or not the start condition is satisfied, and if it is determined by the determination process that the start condition is satisfied, the song data corresponding to the destination area is played back, while the start condition is satisfied If not, the computer is caused to execute a reproduction process for reproducing the music data corresponding to the movement source area.

  In the invention according to claim 4, area designation processing for designating a destination area from among a plurality of lesson areas, and song data representing each sound of practice songs are divided into a plurality of lesson areas, and each divided lesson is divided. Each area is a start condition for playing the corresponding song data, and includes the lesson area to be cleared, the clear level necessary to clear this lesson area, and the performance level evaluated in performance practice. Data is stored, and the performance level of the lesson area that should be cleared before proceeding to the destination area with reference to the area data of the destination area designated by the area designation process from that data starts to exceed the clear level A determination process for determining whether or not a condition is satisfied, and a movement destination error when the determination process determines that the start condition is satisfied. Reproducing the music data corresponding to A, whereas, if not satisfied start condition is characterized by executing a reproduction process in a computer for reproducing the music data corresponding to the movement source area.

  According to the first and third aspects of the present invention, the song data representing each sound of the practice song is divided into a plurality of lesson areas, and the start of reproducing corresponding song data for each divided lesson area If area data including conditions is stored and a destination area is specified from multiple lesson areas, whether or not the start condition of the destination area is satisfied with reference to the area data of the specified destination area If the start condition is satisfied, the song data corresponding to the destination area is played, while if the start condition is not satisfied, the song data corresponding to the source area is played. The user can voluntarily practice from the area to the lesson less difficult area, and as a result, effective performance practice can be performed without lowering the willingness to practice.

  According to the second and fourth aspects of the present invention, the song data representing each sound of the practice song is divided into a plurality of lesson areas, and the start of playing the corresponding song data for each divided lesson area Memorize area data with the lesson area to be cleared, the clear level necessary to clear this lesson area, and the performance level evaluated in performance practice. When the destination area is specified, whether or not the performance level of the lesson area that should be cleared before proceeding to the destination area with reference to the area data of the specified destination area satisfies the start condition that exceeds the clear level. If the start condition is satisfied, the song data corresponding to the movement destination area is played back. Since the corresponding song data is played back, the user can voluntarily practice from the lesson area he is good at to the lesson area with high difficulty, and as a result, the performance performance can be practiced without reducing his willingness to practice. It becomes like this.

Embodiments of the present invention will be described below with reference to the drawings.
A. Configuration (1) Overall Configuration FIG. 1 is a block diagram showing a configuration of a performance practice device 100 according to an embodiment of the present invention. In this figure, the CPU 10 supplies the music data of the practice music stored in the ROM 11 to the electronic musical instrument 20 through the MIDI interface 13 to reproduce the practice music, or the keyboard using the reproduced practice music as a model. The performance data generated by the performance operation of the user who plays 15 is supplied to the electronic musical instrument 20 through the MIDI interface 13 to generate sound. Further, the CPU 10 evaluates the performance practice content by comparing performance data generated by the user's performance operation with music data of the practice music corresponding to the performance data. The characteristic processing operation of the CPU 10 according to the gist of the present invention will be described in detail later.

  The ROM 11 includes a program area and a data area. In the program area of the ROM 11, various control programs including a main routine, an area change process, and a reproduction process described later are stored. In the data area of the ROM 11, song data of various practice songs and various screen data used for performance practice are stored. The composition of the song data will be described later. The RAM 12 includes a work area and a data area. In the work area of the RAM 12, off-buffer data offbuf temporarily stored in the buffer area and reproduction control data ply are stored. In the data area of the RAM 12, lesson area data la is stored. The configuration of each data (off buffer data offbuf, reproduction control data ply, and lesson area data la) will be described in detail later.

The MIDI interface 13 exchanges MIDI data with the electronic musical instrument 20 under the control of the CPU 10. In response to a click operation of an icon displayed on the screen of the display unit 16, the operation unit 14 includes a mouse that generates an operation event associated with the icon and various operation switches that generate a switch event corresponding to the switch operation. Prepare. As operation switches according to the present invention, the operation unit 14 is instructed to designate an area designation switch for designating a lesson area, an area movement switch for instructing movement of the lesson area, a lesson start switch for instructing start of a lesson, and stop of lesson. A lesson stop switch is provided.
In the present embodiment, as will be described later, a menu screen (to be described later) having icons that generate operation events equivalent to the area designation switch, lesson start switch, and lesson stop switch described above is displayed on the display unit 16. It is also possible to substitute the switch operation by clicking on these icons.

  The keyboard 15 generates performance data (note on / note off events) corresponding to the performance operation (press / release key operation). The display unit 16 is composed of, for example, a liquid crystal panel, and in response to a display control signal supplied from the CPU 10, for example, an area designation icon for designating a lesson area, a lesson start icon for instructing the start of a lesson, and an instruction for lesson stop. A menu screen with a lesson stop icon is displayed on the screen. The electronic musical instrument 20 reproduces MIDI data (song data or performance data) received via the MIDI interface 13 as a musical tone having a preset tone color.

(2) Configuration of song data mel FIG. 2 is a diagram showing a configuration of song data mel stored in the ROM 11. The song data mel is composed of note data mel [0] to [n] representing each sound constituting the practice song. The note data mel [0] to [n] are each composed of a pitch iPitch represented by a note number, a sounding start time lTime represented by a tick number (tempo clock number), and a sound length lGate representing a sounding period. .

(3) Configuration of off-buffer data offbuf FIG. 3 is a diagram illustrating a configuration of off-buffer data offbuf temporarily stored in a buffer area provided in the work area of the RAM 12. The off-buffer data offbuf is data registered in the off-buffer area corresponding to the note data mel that is generated (note-on), and is the pitch iPitch and the number of ticks (the number of tempo clocks) represented by the note number. It is composed of the mute time lTime represented. The off buffer data offbuf [0] to [n] are erased when the corresponding note data mel is muted.

(4) Configuration of Reproduction Control Data ply FIG. 4 is a diagram showing a configuration of the reproduction control data ply stored in the work area of the RAM 12. The reproduction control data ply includes the reproduction start time lBaseTime of the music data mel, the current time lNowTime, the elapsed time lMeta51Time from the reproduction start time lBaseTime to the current time lNowTime, and the current reproduction position that represents the elapsed time lMeta51Time by the number of ticks (tempo clock number). lNowTick, last tempo change tick dMeta51Tick, resolution dRes1000 expressed by number of ticks of quarter note length, lesson area start tick lTickCuricum, midway playback start tick lTickOffset, tick increment lTickCountIn, current tempo value lTempo, offset tempo value lTempoOffset, first tempo Value lTempoTop, song data pointer melpt And it consists of state flag IPaly.

(5) Structure of Lesson Area Data la FIG. 5 is a diagram showing a structure of lesson area data la stored in the data area of the RAM 12. The lesson area data la is information indicating the attribute of each divided lesson area by dividing the song data mel of the practice song into a plurality of sections (lesson areas), and indicating the number of lesson areas into which the song data mel is divided. It consists of a lesson area number iLAnum, an area pointer iLaptr for designating a lesson area, and area information la [0] to [n] representing attributes for each lesson area.
Each area information la [0] to [n] includes an area number iLArea, a start tick lLATime indicating an area start position, an end tick lLATimeEnd indicating an area end position, a pronunciation start tick lLATimeOn, a start condition area iLAarea, a start condition clear level iLAareaClevel. And has a clear level iLAClevel.

  The pronunciation start tick lLATimeOn represents the pronunciation timing of the song data mel at the beginning of the lesson area. The start condition area iLAarea and the start condition clear level iLAareaClevel represent preconditions for performing performance practice in this lesson area. In the present embodiment, for example, in each lesson area, the user's performance level (skill level) is evaluated in five stages, and the performance level in the start condition area iLAarea exceeds the start condition clear level iLAareaClevel. , This lesson area can be practiced. The clear level iLAClevel represents the performance level of this lesson area.

B. Operation Next, the operation of the embodiment having the above-described configuration will be described with reference to FIGS. In the following, the operation of the main routine will be described first as an overall operation, and then each operation of area change processing and reproduction processing called from the main routine will be described.

(1) Operation of Main Routine When the main routine is executed in the performance practice apparatus 100, the CPU 10 proceeds to step SA1 shown in FIG. 6, performs initialization for initializing each part of the apparatus, and then proceeds to step SA2. In step SA2, a menu screen (not shown) is displayed on the display unit 16 based on the menu screen data read from the data area of the ROM 11. As described above, the menu screen is a screen including an area designation icon for designating a lesson area, a lesson start icon for instructing start of a lesson, and a lesson stop icon for instructing stop of a lesson.

  Subsequently, in step SA3, it is determined whether or not a command is input by either a switch operation provided on the operation unit 14 or an icon operation on the menu screen. When the user inputs a command, the determination result in step SA3 is “YES”, and the process proceeds to step SA4 and subsequent steps. The operation when lesson area specification, lesson start, lesson stop, and other processing commands are input will be described below.

a. In the case of lesson area designation When a command for designating a lesson area is input, the determination result in step SA4 is “YES”, and the flow advances to step SA5 to execute area change processing. In the area change process, as will be described later, the pronunciation start tick la [iLaptr]. Note data mel [I] .i having a pronunciation start time equal to or greater than iLATimeOn. lTime is searched for, and the music data search pointer I designating the corresponding note data mel [I] is set to the music data pointer ply. The start tick la [iLAptr]. iLATme, lesson area start tick ply. Set to 1TickCuriculum. Thereafter, the process returns to step SA2 described above to return to the menu screen display state.

b. In the case of lesson start When a command for instructing the start of a lesson is input, the determination result in step SA6 is “YES”, and the process proceeds to step SA7 to execute reproduction processing. In the playback process, as will be described later, a “playback variable update process”, “note-off process”, and “note-on process” described below are executed until a termination condition for ending the playback process is met. After the music data mel corresponding to the lesson area is reproduced, the process returns to step SA2 to return to the menu screen display state.

c. In the case of a lesson stop When a command for instructing a lesson stop is input, the determination result in step SA8 is “YES”, the process proceeds to step SA9, and the status flag ply. After setting “0” in iPlay to set the lesson stopped state, the process returns to step SA2 to return to the menu screen display state.

d. In the case of other processing commands For example, when a command for instructing evaluation of the performance level is input, the process proceeds to step SA10, and performance data generated in response to the user's performance operation, and song data of the corresponding practice song, After performing other processes such as determining the performance level by comparing the two, the process returns to step SA2 to return to the menu screen display state.

(2) Operation of Area Change Processing Next, the operation of area change processing will be described with reference to FIG. When this process is executed via step SA5 (see FIG. 6) of the main routine described above, the CPU 10 advances the process to step SB1 shown in FIG. In step SB1, it is determined whether or not the movement direction of the lesson area designated by the operation of the area movement switch is backward movement (movement toward the rear end of the music).

  In the case of forward movement in which the lesson area is moved in the direction of the beginning of the song, the determination result in step SB1 is “NO”, and the flow proceeds to step SB2. In step SB2, it is determined whether or not the value of the area pointer iLaptr is greater than “0”, that is, whether or not the lesson area currently set by the area pointer iLAptr is the beginning of a practice song. If the currently set lesson area is the beginning of the song, it cannot be moved before that, so the determination result in step SB2 is “NO”, the process proceeds to step SB6, and the song data search pointer I is reset to zero. . On the other hand, if the currently set lesson area is not the beginning of the song, the determination result in step SB2 is “YES”, the process proceeds to step SB3, the value of the area pointer iLaptr is decremented, and the process proceeds to step SB6. The data retrieval pointer I is reset to zero.

On the other hand, in the case of backward movement in which the lesson area is moved toward the rear end of the song, the determination result in step SB1 is “YES”, and the flow proceeds to step SB4. In step SB4, whether the area pointer iLAptr + 1 moved by one in the direction of the music trailing edge is equal to or greater than the number of lesson areas iLAnum, that is, whether the lesson area currently set by the area pointer iLAptr is the music trailing edge. Judging. If it is at the rear end of the song, it cannot be moved after that. Therefore, the judgment result at step SB4 is “NO”.
On the other hand, if the currently set lesson area is not the rear end of the song, the determination result in step SB4 is “NO”, the process proceeds to step SB5, the value of the area pointer iLaptr is incremented, and the step is advanced. Proceeding to step SB6, the music data search pointer I is reset to zero.

Next, in steps SB7 to SB9, the pronunciation of the lesson area designated for movement is started while the song data search pointer I is stepped up until reaching the number MAXMEL of the note data mel [0] to [n] constituting the song data mel. Tick la [iLaptr]. Note data mel [I] .i having a pronunciation start time equal to or greater than iLATimeOn. Search for lTime.
Applicable note data mel [I]. When lTime is retrieved, the determination result in step SB8 is “YES”, and the process proceeds to step SB10, where the value of the song data search pointer I is set to the song data pointer ply. Set to melptr. Subsequently, in step SB11, the start tick la [iLaptr]. iLATme, lesson area start tick ply. Set to 1TickCuriculum to finish this process.

  In this way, in the area change process, when the lesson area is moved according to the area movement switch operation, the pronunciation start tick la [iLaptr]. Note data mel [I]. lTime is retrieved, and the music data search pointer I designating the corresponding note data mel [I] is set to the music data pointer ply. The start tick la [iLAptr]. iLATme is the lesson area start tick ply. Set to 1TickCuriculum.

  In the above steps SB7 to SB9, the corresponding note data mel [I]. If lTime is not searched and the song data search pointer I is incremented until it exceeds the number MAXMEL of the note data mel [0] to [n] constituting the song data mel, the determination result in step SB7 is “YES”. The process is returned to the above-described step SB1, and the lesson area movement is performed again.

(3) Operation of Reproduction Process Next, the operation of the reproduction process will be described with reference to FIG. When this process is executed via step SA7 (see FIG. 6) of the main routine described above, the CPU 10 advances the process to step SC1 shown in FIG. In step SC1, the status flag ply. Set “1” to iPlay. Subsequently, in step SC2, it is determined whether or not an end condition for ending the playback process is met. If the end condition is met, a value “−1” indicating the end of playback is set to the status flag ply. An end condition checking process (described later) set in iPlay is executed.

  Next, at step SC3, the status flag ply. It is determined whether the value of iPlay is “−1”, that is, whether playback is instructed. If the end of reproduction is instructed, the determination result is “YES”, and this processing is completed. On the other hand, if the end of reproduction is not instructed, the determination result is “NO”, and “reproduction variable update processing”, “note-off processing”, and “note-on processing” described later are executed via steps SC4 to SC6. Then, the music data mel corresponding to the designated lesson area is reproduced in order.

(4) Operation of End Condition Inspection Process Next, the operation of the end condition inspection process will be described with reference to FIG. When this process is executed via step SC2 (see FIG. 8) of the reproduction process described above, the CPU 10 advances the process to step SD1 shown in FIG. In step SD1, it is determined whether or not the first end condition, that is, the music data mel has been read to the end and all the off-buffer data offbuf has been erased. If the first end condition is met, the determination result is “YES”, the process proceeds to step SD4, and the status flag ply. A value “−1” for instructing the end of reproduction is set in iPlay, and this processing is completed.

  On the other hand, if the first end condition is not met, the determination result in step SD1 is “NO”, and the process proceeds to step SD2. In step SD2, the second end condition, that is, the current reproduction position ply. It is determined whether l NowTick exceeds the end tick lLATimeEnd of the currently set lesson area. If the second end condition is met, the determination result is “YES”, the process proceeds to step SD4, and the status flag ply. The value “−1” indicating the end of reproduction is set in iPlay, and this processing is completed.

  On the other hand, if the second end condition is not met, the determination result in step SD2 is “NO”, and the process proceeds to step SD3. In step SD3, in response to the third end condition, that is, the lesson stop switch operation or the lesson stop icon operation, the status flag ply. It is determined whether the value of iPlay is set to “0”. If the third end condition is met, the determination result is “YES”, the process proceeds to step SD4, and the status flag ply. The value “−1” indicating the end of reproduction is set in iPlay, and this processing is completed. On the other hand, if the third end condition is not met, the determination result is “NO”, and the present process ends without performing anything.

(5) Operation of Playback Variable Update Process Next, the operation of the playback variable update process will be described with reference to FIG. When this process is executed via step SC4 (see FIG. 8) of the reproduction process described above, the CPU 10 advances the process to step SE1 shown in FIG. In step SE1, the current time expressed in msec units is set to the current time ply. Store in lNowTime. Subsequently, at step SE2, the current time ply. The playback start time lBaseTime is subtracted from lNowTime, and the elapsed time ply. lMeta51Time is calculated.

Next, at step SE3, the current reproduction position ply. l NowTick is calculated.
ply. l NowTick = ply. dMeta51Tick + ply. dRes1000 × ply. lMeta51Time / (ply.lTempo × ply.lTempoOffset / ply.lTempoTop) + ply. lTickOffset + ply. lTickCuriculum-ply. lTickCountIn (1)

  In the above equation (1), ply. dMeta51Tick is the previous tempo change tick, ply. dRes1000 is a resolution expressed by the number of ticks (tempo clock number) of quarter note length, ply. lMeta51Time is the elapsed time from the playback start time. ply. lTempo is the current tempo value, ply. lTempoOffset is the offset tempo value, ply. lTempoTop is the top tempo value. ply. lTickOffset is a midway regeneration start tick, ply. lTickCuriculum is the lesson area start tick, ply. lTickCountIn is a tick increment.

Next, in step SE4, it is determined whether or not there is a tempo change instruction. If there is no tempo change instruction, the determination result is “NO”, and this process is completed without performing anything. If there is a tempo change instruction, the determination result is “YES”, and the process proceeds to step SE5. In step SE5, based on the following equation (2), the previous tempo change tick ply. Update dMeta51Tick.
ply. dMeta51Tick = ply. dMeta51Tick +
ply. dRes1000 × ply. lMeta51Time / (ply.lTempo × ply.lTempoOffset / ply.lTempoTop) (2)
In step SE6, the current time ply. lNowTime playback start time ply. In the subsequent step SE7, the designated tempo value is changed to the current tempo value ply. Set to lTempo and finish this process.

(6) Operation of Note Off Process Next, the operation of the note off process will be described with reference to FIG. When this process is executed through step SC5 (see FIG. 8) of the reproduction process described above, the CPU 10 advances the process to step SF1 shown in FIG. 11 and resets the music data search pointer I to zero. Subsequently, in step SF2, it is determined whether or not the music data search pointer I is greater than or equal to the number MAXOFFBUF of the off-buffer data offbuf that can be stored in the buffer area of the RAM 12, that is, whether or not all the off-buffer data offbuf have been searched. To do.

  If the search has not been completed for all off-buffer data offbuf, the determination result is “NO”, and the flow proceeds to step SF3. In step SF3, the mute time offbuf [I]... In the off-buffer data offbuf designated by the music piece data search pointer I. It is determined whether or not lTime is “NULL (empty state)”. If the off-buffer data offbuf specified by the song data search pointer I is empty, the determination result is “YES”, and the process proceeds to step SF7, where the song data search pointer I is incremented and stepped. The process returns to step SF2. On the other hand, if the off-buffer data offbuf specified by the music data search pointer I is not empty, the determination result in step SF3 is “NO”, and the flow advances to step SF4.

  In step SF4, the mute time offbuf [I]. lTime is the current playback position ply. It is determined whether or not lNowTick has passed, that is, whether or not the mute timing has been reached. If the mute timing has not been reached, that is, if the song data mel (note data) corresponding to the off-buffer data offbuf [I] is sounding, the determination result is “YES”, and the song data search pointer is set in step SF7. Increment I and return to step SF2 described above.

  On the other hand, when the mute timing is reached, that is, when the music data mel corresponding to the off-buffer data offbuf [I] has been sounded, the determination result in step SF4 is “NO”, and the process proceeds to step SF5. In step SF5, the off-buffer data offbuf [I] is sent to the electronic musical instrument 20 via the MIDI interface 13 as a note-off event for instructing mute. Thereby, the musical sound of the music data mel reproduced on the electronic musical instrument 20 side is muted. In step SF6, the muffling time offbuf [I]... In the off-buffer data offbuf specified by the music piece data search pointer I is set. After setting lTime to “NULL (empty state)”, the process proceeds to step SF7.

  Thereafter, off-buffer data offbuf [I] corresponding to the music data mel that has been generated is searched while stepping on the music data search pointer I until the maximum number MAXOFFBUF is exceeded, and the corresponding off-buffer data offbuf [I] is found. For example, the off-buffer data offbuf [I] is transmitted to the electronic musical instrument 20 as a note-off event for instructing mute and instructed to mute, while the mute time offbuf [I]. Set lTime to “NULL (empty state)” and erase from the buffer area. When the song data search pointer I exceeds the maximum number MAXOFFBUF, the determination result in step SF2 is “YES”, and the process is terminated.

(7) Operation of Note On Process Next, the operation of the note on process will be described with reference to FIG. When this process is executed via the above-described playback process step SC6 (see FIG. 8), the CPU 10 advances the process to step SG1 shown in FIG. 12, and the music data pointer ply. The value of melptr is set in the music data search pointer I. Subsequently, in step SG2, whether or not the song data search pointer I has exceeded the number MAXMEL of the note data mel [0] to [n] constituting the song data mel, that is, the song data mel has been reproduced to the end of the song. Determine whether or not.

If the music data mel has not been reproduced to the end of the music, the determination result is “NO”, and the process proceeds to step SG4. In step SG4, the sound generation start time mel [I]. lTime is the current playback position ply. It is determined whether or not lNowTick has been passed, that is, whether or not the sound generation timing has been reached. If the sound generation timing has not been reached, the determination result is “NO”, and the process proceeds to step SG3, where the value of the music data search pointer I is set to the music data pointer ply. The process is temporarily stored after storing in melptr.
On the other hand, if the sound generation timing has been reached, the determination result in step SG4 is “YES”, the process proceeds to step SG5, and a note-on event instructing sound generation of the note data mel [I] is generated. The sound is instructed to be transmitted to the electronic musical instrument 20 side via.

  Next, in steps SG6 to SG8, the search pointer j is incremented to find off-buffer data offbuf [j] whose mute time lTime is “NULL (empty state)”. When the off-buffer data offbuf [j] whose mute time lTime is “NULL (empty state)” is searched, the determination result in step SG7 becomes “YES”, and the flow advances to step SG9. In step SG9, the sound generation start time mel [I]. lTime and sound length mel [I]. The addition value with lGate is stored as the muffling time lTime of the off-buffer data offbuf [j]. Also, the pitch mel [I]. iPitch is stored as the pitch iPitch of the off-buffer data offbuf [j].

  Then, the process proceeds to step SG10, the music data search pointer I is incremented and stepped, and the process returns to step SG2. Thereafter, the above steps SG2 to SG10 are repeated until the music data search pointer I exceeds the number MAXMEL of the note data mel [0] to [n]. When the music data mel has been reproduced to the end of the music, the determination result in step SG2 is “YES”, and this processing is completed.

C. In the above-described area change process (see FIG. 7), when the movement of the lesson area is instructed, the note data mel corresponding to the head of the lesson area to be moved can be searched and reproduced by referring to the lesson area data la. I tried to do it. On the other hand, in the area change process according to the modified example, when the movement of the lesson area is instructed, the lesson area data la is referred to, the start condition of the destination lesson area is checked, and the start condition is satisfied. The note data mel corresponding to the head of the lesson area to be moved is searched and made reproducible. On the other hand, if the start condition is not satisfied, the lesson area is instructed to be moved back to the previous lesson area.

  Hereinafter, the operation of the area changing process according to such a modification will be described with reference to FIG. As in the above-described embodiment, when this process is executed via step SA5 (see FIG. 6) of the main routine, the CPU 10 advances the process to step SH1 shown in FIG. 13 and sets the currently set area pointer iLAptr. Is stored in the register buf. Subsequently, in step SH2, it is determined whether or not the movement direction of the lesson area designated by the operation of the area movement switch is backward movement (movement toward the rear end of the music).

In the case of forward movement in which the lesson area is moved in the direction of the beginning of the song, the determination result in step SH2 is “NO”, and the flow proceeds to step SH3. In step SH3, it is determined whether or not the value of the area pointer iLaptr is greater than “0”, that is, whether or not the lesson area designated by the currently set area pointer iLAptr is the beginning of a practice song. . If the currently set lesson area is the beginning of a song, it cannot move before that, so the determination result in step SH3 is “NO”, and the process proceeds to step SH7, where the song data search pointer I is reset to zero. .
On the other hand, if the currently set lesson area is not the beginning of the song, the determination result in step SH3 is “YES”, the process proceeds to step SH4, the value of the area pointer iLaptr is decremented, and then the process proceeds to step SH7. The data retrieval pointer I is reset to zero.

On the other hand, in the case of backward movement in which the lesson area is moved toward the rear end of the song, the determination result in step SH2 is “YES”, and the flow proceeds to step SH5. In step SH5, the area pointer iLaptr + 1 moved by one in the direction of the music end is equal to or greater than the number of lesson areas iLAnum, that is, the lesson area specified by the currently set area pointer iLAptr is the music end. Determine whether or not. If it is at the rear end of the song, it cannot be moved after that. Therefore, the determination result at step SH5 is “YES”, and the process proceeds to step SH7, where the song data search pointer I is reset to zero.
On the other hand, if the currently set lesson area is not the rear end of the song, the determination result in step SH5 is “NO”, the process proceeds to step SH6, the value of the area pointer iLaptr is incremented, and the step is advanced. In step SH7, the music data search pointer I is reset to zero.

Next, at step SH8, the start condition area la [iLaptr]... In the lesson area data la designated by the area pointer iLaptr. From the start condition clear level iLAClevel defined in iLAarea, the clear level la [iLAptr]... in the lesson area data la specified by the area pointer iLAptr. The value obtained by subtracting iLAareaClevel is stored in register a.
In step SH9, it is determined whether or not the value of the register a is greater than “0”, that is, whether or not the start condition is satisfied. If the value of the register a is greater than “0” and satisfies the start condition, the determination result is “YES”, and the process proceeds to step SH11 described later.
On the other hand, if the value of the register a is “0” or less and the start condition is not satisfied, the determination result is “NO”, the process proceeds to step SH10, and the value of the register buf is stored in the area pointer iLaptr. As a result, if the start condition is not satisfied, the previous lesson area is restored.

Next, in steps SH11 to SH13, the music data search pointer I is incremented until it reaches the number MAXMEL of the note data mel [0] to [n] constituting the music data mel, and the lesson specified by the area pointer iLaptr. Area pronunciation start tick la [iLAptr]. Note data mel [I] .i having a pronunciation start time equal to or greater than iLATimeOn. Search for lTime.
Applicable note data mel [I]. When “Time” is searched, the determination result in step SH12 is “YES”, and the process proceeds to step SH14, where the value of the music data search pointer I is set to the music data pointer ply. Set to melptr. Subsequently, in step SH15, the lesson area start tick la [iLAptr]. iLATme is a lesson area start tick ply. Set to 1TickCuriculum to finish this process.

  By the way, in the above steps SH11 to SH13, the corresponding note data mel [I]. If lTime is not searched and the song data search pointer I is incremented until the number MAXMEL of the note data mel [0] to [n] constituting the song data mel is exceeded, the determination result in step SH11 is “YES”. The process is returned to the above-described step SH1, and the lesson area movement designation is performed again.

As described above, in the area change process according to the modification, when the lesson area is moved according to the area movement switch operation, the start condition of the lesson area to be moved is checked with reference to the lesson area data la, and the start condition is determined. If it meets, the note data mel corresponding to the beginning of the lesson area to be moved is searched and played back, while if the start condition is not met, the lesson area is moved back to the previous lesson area instructing movement. .
After the start condition determination is made, the lesson area pronunciation start tick la [iLaptr].. Is specified with the area pointer iLaptr with reference to the lesson area data la. Note data mel [I] .i having a pronunciation start time equal to or greater than iLATimeOn. lTime, and the music data search pointer I designating the corresponding note data mel [I] is set to the music data pointer ply. The lesson area start tick la [iLaptr].. is set to melptr and specified by the area pointer iLaptr. iLATme is a lesson area start tick ply. Set to 1TickCuriculum.

  As described above, in this embodiment, the song data mel of the practice song is divided into a plurality of lesson areas, and lesson area data la including the start conditions of each divided lesson area is provided, and the area movement switch operation is performed. If the lesson area is moved in accordance with, the start condition of the destination lesson area is checked with reference to the lesson area data la, and if the start condition is satisfied, the lesson area is associated with the destination lesson area. Play the song data mel and practice performance. On the other hand, if the start condition is not met, return to the lesson area before the move instruction and play the song data mel associated with the lesson area. As a result, the user himself / herself practiced spontaneously from the lesson area where they are good at the lesson area with high difficulty. Without reducing the practice motivation, it becomes possible to perform an effective performance practice.

  In the present embodiment, the start condition (start condition clear level iLAareaClevel: see FIG. 5) for each lesson area registered in the lesson area data la is fixed, but is not limited to this and is variable. It is also good. That is, the performance level (skill level) for each lesson area evaluated for each performance practice is registered in the lesson area data la as the start condition clear level iLAareaClevel, and the performance level evaluated at the next performance practice is If it is determined that the performance level has been exceeded, it is possible to provide a user with a lesson area that can be transferred next. In this way, the user himself can grasp the progress and can effectively practice.

It is a block diagram which shows the whole structure of one Embodiment. It is a figure which shows the structure of music data mel. It is a figure which shows the structure of off buffer data offbuf. It is a figure which shows the structure of the reproduction | regeneration control data ply. It is a figure which shows the structure of lesson area data la. It is a flowchart which shows operation | movement of a main routine. It is a flowchart which shows the operation | movement of an area change process. It is a flowchart which shows the operation | movement of reproduction | regeneration processing. It is a flowchart which shows operation | movement of an end condition inspection process. It is a flowchart which shows the operation | movement of the reproduction variable update process. It is a flowchart which shows operation | movement of a note-off process. It is a flowchart which shows operation | movement of a note-on process. It is a flowchart which shows the operation | movement of the area change process by a modification.

Explanation of symbols

10 CPU
11 ROM
12 RAM
DESCRIPTION OF SYMBOLS 13 MIDI interface 14 Operation part 15 Keyboard 16 Display part 20 Electronic musical instrument 100 Performance training apparatus

Claims (4)

Area data storage means for storing song data representing each sound of practice songs into a plurality of lesson areas, and storing area data including start conditions for playing the corresponding song data for each divided lesson area ,
An area designation means for designating a destination area from a plurality of lesson areas;
A determination unit that reads out area data of the destination area designated by the area designation unit from the lesson area data storage unit and determines whether the start condition of the destination area is satisfied;
If the determination means determines that the start condition is satisfied, the song data corresponding to the destination area is played back. On the other hand, if the start condition is not satisfied, the song data corresponding to the source area is played back. A performance practice device comprising: a reproducing means for performing. The song data representing each sound of the practice song is divided into multiple lesson areas, and the lesson area to be cleared and this lesson are the start conditions for playing the corresponding song data for each divided lesson area. Area data storage means for storing area data having a clear level necessary for clearing the area and a performance level evaluated in performance practice;
An area designation means for designating a destination area from a plurality of lesson areas;
The area data storage means reads out the clear level and performance level in the lesson area to be cleared before proceeding to the destination area with reference to the area data of the destination area designated by the area designation means, and the read performance A determination means for determining whether or not a level satisfies a start condition exceeding a clear level;
If the determination means determines that the start condition is satisfied, the song data corresponding to the destination area is played back. On the other hand, if the start condition is not satisfied, the song data corresponding to the source area is played back. A performance practice device comprising: a reproducing means for performing. Area specification processing for specifying a destination area from among multiple lesson areas;
The song data representing each sound of the practice song is divided into a plurality of lesson areas, and area data including a start condition for playing the corresponding song data is stored for each divided lesson area. A determination process for determining whether or not the start condition of the destination area is satisfied by referring to the area data of the destination area specified by the area specifying process,
If it is determined by the determination process that the start condition is satisfied, the song data corresponding to the destination area is played back. On the other hand, if the start condition is not satisfied, the song data corresponding to the source area is played back. A performance practice program characterized by causing a computer to execute playback processing. Area specification processing for specifying a destination area from among multiple lesson areas;
The song data representing each sound of the practice song is divided into multiple lesson areas, and the lesson area to be cleared and this lesson are the start conditions for playing the corresponding song data for each divided lesson area. Area data having a clear level necessary for clearing the area and a performance level evaluated in performance practice is stored, and the area data of the destination area designated by the area designation process is referred to from the area data. A determination process for determining whether or not the performance level of the lesson area to be cleared before proceeding to the destination area satisfies a start condition exceeding the clear level;
If it is determined by the determination process that the start condition is satisfied, the song data corresponding to the destination area is played back. On the other hand, if the start condition is not satisfied, the song data corresponding to the source area is played back. A performance practice program characterized by causing a computer to execute playback processing.

Images