JP5600968B2 - Automatic performance device and automatic performance program - Google Patents

Description

  The present invention relates to an automatic performance apparatus and an automatic performance program capable of performing a demonstration performance.

  A device capable of generating musical sounds, such as an electronic musical instrument, can read data of demonstration songs (hereinafter referred to as “demo songs”) stored in a ROM or memory card and perform based on the demo song data There are many things that are. In the performance of demo music data, the tempo can usually be changed by the operation of an operator (hereinafter referred to as “performer”). However, there is a problem that a demo performance according to the mood of the performer cannot be realized simply by changing the tempo.

JP-A-7-72857 JP-A-8-16165

  For example, Patent Document 1 discloses an automatic performance device that divides demo music into a plurality of blocks and changes the pattern of the demo performance in accordance with instructions. In Patent Document 2, the performance time when the performer performs the same music as the demo music is measured, compared with the performance time of the demo music, and the tempo at the time of the performance of the demo music is calculated based on the comparison result. An automatic performance device for controlling is disclosed.

  Since the performance by the performer represents the psychological state of the performer, the performance information including the tempo and volume based on the performance by the performer is reflected in the automatic performance of the demo song, thereby automatically performing the demo song. Can be matched to the psychological state of the performer.

  The present invention further provides an automatic performance apparatus and an automatic performance program that can set an adjustable range of performance information in automatic performance of music such as a demo song, reflecting the psychological state of the performer. With the goal.

An object of the present invention is to provide a plurality of performance operators each assigned a pitch,
Performance data generating means for generating performance data including records indicating events, sound generation timings and mute timings according to the operation of the performance operator by the performer, and storing the performance data in the performance data storage area of the storage means;
For each of the musical sounds constituting the music, a record of music data including an event including the pitch, a record indicating the sound generation timing and the mute timing is stored in the music data storage area of the storage means based on a preset first tempo. By reading from, the music performance control means for generating performance information according to the event, sound generation timing and mute timing included in the record,
Performance information adjusting means for adjusting an upper limit and a lower limit of the first tempo in accordance with an input by the performer,
The performance information adjusting means is
Calculating a first tempo difference value corresponding to a value obtained by subtracting the first tempo from a second tempo determined based on the performance data;
Obtaining player psychological information indicating the player's psychological state based on the first tempo difference value, and determining an upper limit and a lower limit of the first tempo based on the acquired player psychological information. Is achieved by an automatic performance device characterized by

In a preferred embodiment, the storage means stores a second tempo difference value corresponding to an average value of the first tempo difference values associated with a plurality of performances by the performer,
The performance information adjusting means is
The performer for respectively increasing the upper limit and the lower limit of the first tempo as the third tempo difference value is increased by subtracting the first tempo difference value from the second tempo difference value. Psychological information is acquired, and based on the acquired player psychological information, an upper limit and a lower limit of the first tempo of the performance information are determined.

In another preferred embodiment, a plurality of performance operators, each assigned a pitch,
Performance data generating means for generating performance data including records indicating events, sound generation timings and mute timings according to the operation of the performance operator by the performer, and storing the performance data in the performance data storage area of the storage means;
For each of the musical tones that make up the music, an event included in the record is obtained by reading from the music data storage area of the storage means a record of the music data including an event including the pitch, a record indicating the sound generation timing and the mute timing. Music performance control means for generating performance information according to the sounding timing and mute timing;
Performance information adjusting means for adjusting an upper limit and a lower limit of a gate time, which is a time between a sound generation timing and a mute timing, included in the performance information, according to the input by the performer,
The performance information adjusting means is
Calculating a first gate time difference value corresponding to a value obtained by subtracting a second gate time for each musical tone in the music data from a first gate time for each musical tone in the performance data;
Obtaining player psychological information indicating the player's psychological state based on the first gate time difference value, and determining an upper limit and a lower limit of the gate time based on the acquired player psychological information. Achieved by the featured automatic performance device.

In a more preferred embodiment, the storage means stores a second gate time difference value corresponding to an average value of the first gate time difference values accompanying a plurality of performances by the performer,
The performance information adjusting means is
The performer for respectively increasing the upper limit and the lower limit of the gate time as the third tempo difference value decreases by subtracting the second gate time difference value from the first gate time difference value. Psychological information is acquired, and upper and lower limits of the gate time are determined based on the acquired player psychological information.

In another preferred embodiment, a plurality of performance operators, each assigned a pitch,
Performance data generating means for generating performance data including records indicating events, sound generation timings and mute timings according to the operation of the performance operator by the performer, and storing the performance data in the performance data storage area of the storage means;
For each of the musical tones that make up the music, a record of music data including an event that includes the pitch and volume, a record that indicates the sound generation timing and the mute timing is included in the record by reading it from the music data storage area of the storage means Music performance control means for generating performance information according to the event to be generated, the sounding timing and the mute timing,
Performance information adjusting means for adjusting an upper limit and a lower limit of velocity corresponding to the volume of the event included in the performance information according to the input by the performer,
The performance information adjusting means is
Calculating a first velocity difference value corresponding to a value obtained by subtracting a second velocity for each musical tone in the music data from a first velocity for each musical tone in the performance data;
Obtaining player psychological information indicating the player's psychological state based on the first velocity difference value, and determining an upper limit and a lower limit of the velocity of the performance information based on the acquired player psychological information. Is achieved by an automatic performance device characterized by

In a more preferred embodiment, the storage means stores a second velocity difference value corresponding to an average value of the first velocity difference values accompanying a plurality of performances by the performer,
The performance information adjusting means is
The player psychological information for increasing the upper limit and the lower limit of the volume respectively as the third velocity difference value is increased by subtracting the second velocity difference value from the first velocity difference value. The upper limit and the lower limit of the velocity of the performance information are determined based on the player psychological information.

In addition, the object of the present invention is to a computer,
A performance data generating step for generating performance data including a record indicating an event, a sound generation timing and a mute timing according to the operation of the performance operator by the performer, and storing the performance data in a performance data storage area of the storage means;
For each of the musical sounds constituting the music, a record of music data including an event including the pitch, a record indicating the sound generation timing and the mute timing is stored in the music data storage area of the storage means based on a preset first tempo. A music performance control step for generating performance information in accordance with the event, sound generation timing and mute timing included in the record,
Performing a performance information adjustment step of adjusting an upper limit and a lower limit of the first tempo in accordance with an input by the performer,
The performance information adjustment step includes:
Calculating a first tempo difference value corresponding to a value obtained by subtracting the first tempo from a second tempo determined based on the performance data;
Obtaining player psychological information indicating the player's psychological state based on the first tempo difference value, and determining upper and lower limits of the first tempo based on the obtained player psychological information; It is achieved by an automatic performance program characterized by including:

Further, the object of the present invention is to a computer,
A performance data generating step for generating performance data including a record indicating an event, a sound generation timing and a mute timing according to the operation of the performance operator by the performer, and storing the performance data in a performance data storage area of the storage means;
For each of the musical tones that make up the music, an event included in the record is obtained by reading from the music data storage area of the storage means a record of the music data including an event including the pitch, a record indicating the sound generation timing and the mute timing. A music performance control step for generating performance information according to the pronunciation timing and the mute timing;
In accordance with the input by the performer, a performance information adjustment step for adjusting an upper limit and a lower limit of a gate time, which is a time between the sound generation timing and the mute timing included in the performance information, is executed,
The performance information adjustment step includes:
Calculating a first gate time difference value corresponding to a value obtained by subtracting a second gate time for each musical tone in the music data from a first gate time for each musical tone in the performance data;
Obtaining player psychological information indicating the player's psychological state based on the first gate time difference value, and determining upper and lower limits of the gate time based on the obtained player psychological information; It is achieved by an automatic performance program characterized by including.
Further, the object of the present invention is to a computer,
A performance data generating step for generating performance data including a record indicating an event, a sound generation timing and a mute timing according to the operation of the performance operator by the performer, and storing the performance data in a performance data storage area of the storage means;
For each of the musical tones that make up the music, a record of music data including an event that includes the pitch and volume, a record that indicates the sound generation timing and the mute timing is included in the record by reading it from the music data storage area of the storage means Music performance control step for generating performance information according to the event to be played, the sounding timing and the mute timing,
A performance information adjusting step for adjusting an upper limit and a lower limit of velocity corresponding to the volume of the event included in the performance information in accordance with the input by the performer,
The performance information adjustment step includes:
Calculating a first velocity difference value corresponding to a value obtained by subtracting a second velocity for each musical tone in the music data from a first velocity for each musical tone in the performance data;
Obtaining player psychological information indicating the player's psychological state based on the first velocity difference value, and determining an upper limit and a lower limit of the velocity of the performance information based on the obtained player psychological information; It is achieved by an automatic performance program characterized by including:

  According to the present invention, it is possible to provide an automatic performance apparatus and an automatic performance program capable of setting a range in which performance information can be adjusted in an automatic performance of a musical piece such as a demo song, reflecting the psychological state of the performer. Is possible.

FIG. 1 is a diagram schematically illustrating the electronic musical instrument according to the present embodiment. FIG. 2 is a block diagram showing the configuration of the electronic musical instrument according to this embodiment. FIG. 3 is a diagram for explaining an example of data stored in the ROM according to the present embodiment. FIG. 4 is a diagram for explaining an example of data stored in the RAM according to the present embodiment. FIG. 5 is a diagram showing a data configuration example of the performance data storage area and the song data area according to the present embodiment. FIG. 6 is a flowchart schematically showing an example of processing executed in the electronic musical instrument according to this embodiment. FIG. 7 is a flowchart showing an example of keyboard processing according to the present embodiment. FIG. 8 is a flowchart illustrating an example of the switch processing according to the present embodiment. FIG. 9 is a flowchart showing an example of the recording start switch process according to the present embodiment. FIG. 10 is a flowchart showing an example of the demo song selection switch process according to the present embodiment. FIG. 11 is a flowchart showing an example of music data conversion processing according to the present embodiment. FIG. 12 is a flowchart showing an example of music data conversion processing according to the present embodiment. FIG. 13 is a flowchart showing an example of the demo song start / stop switch process according to the present embodiment. FIG. 14 is a flowchart showing an example of the demo song start / stop switch process according to the present embodiment. FIG. 15 is a flowchart illustrating an example of parameter selection switch processing according to the present embodiment. FIG. 16 is a flowchart illustrating an example of parameter increase / decrease switch processing according to the present embodiment. FIG. 17 is a flowchart illustrating an example of analysis processing according to the present embodiment. FIG. 18 is a flowchart illustrating an example of analysis processing according to the present embodiment. FIG. 19 is a flowchart showing an example of the demo song processing according to the present embodiment. FIG. 10 is a flowchart showing an example of the demo music processing according to the present embodiment.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a diagram schematically illustrating the electronic musical instrument according to the present embodiment. As shown in FIG. 1, an electronic musical instrument 10 according to the present embodiment has a keyboard 11 including a plurality of (for example, 61) keys 16-1, 16-2,. In addition, on the upper part of the keyboard 11, tone specification, parameter setting including tempo of automatic performance of music including demo music, etc., recording start instruction by player, selection of demo music, start / stop of demo music The display unit 14 displays a plurality of switches (for example, the switch 17, the numeric keypad 18 and the like) and various pieces of information related to the music to be played, such as a tone color, a demo music number, and a tempo.

  FIG. 2 is a block diagram showing the configuration of the electronic musical instrument according to this embodiment. As shown in FIG. 2, the electronic musical instrument 10 according to the present embodiment includes a CPU 21, a ROM 22, a RAM 23, a sound system 24, a keyboard 11, a switch unit 12, and a display unit 14 having a liquid crystal display device.

  The CPU 21 controls the electronic musical instrument 10 as a whole, detects keys pressed on the keys of the keyboard 11 (see, for example, reference numerals 16-1 and 16-2 in FIG. 1) and operation of switches constituting the switch unit 12, Various processes such as control of the sound system 24 according to the operation are executed. Further, in the present embodiment, the CPU 21 reads out the data of the demo song stored in the ROM 22 and causes the sound generator unit 26 to generate sound, and also generates performance data based on the key depression of the keyboard 11 by the performer. A process of storing in the RAM 23 is executed. Further, the CPU 21 executes a process for controlling performance information parameters that define the performance of the demo song based on the operation of the switch 12 by the performer.

  The ROM 22 performs various processes to be executed by the CPU 21, for example, on / off detection of keys on the keyboard, key operation, switch operation, tone generation according to key press, automatic performance of demo songs, etc. Stores programs for generating performance data based on key depression, controlling performance information parameters, and the like. The ROM 22 stores a waveform data area for storing waveform data for generating musical sounds such as piano, guitar, bass drum, snare drum, and cymbal, a demo song data area for storing automatic accompaniment, and the above program. Has a program area. The RAM 23 stores a program read from the ROM 22, data generated in the course of processing, and the like.

  The sound system 24 includes a sound source unit 26, an audio circuit 27, and a speaker 28. For example, when the sound source unit 26 receives a note-on event related to the depressed key from the CPU 21, the tone generator 26 reads predetermined waveform data from the waveform data area of the ROM 22, and generates musical sound data of a predetermined velocity at a predetermined pitch. Output. The sound source unit 26 can also output waveform data, particularly waveform data of percussion instrument sounds such as a snare drum, bass drum, and cymbal, as musical sound data. The audio circuit 27 D / A converts and amplifies the musical sound data. Thereby, an acoustic signal is output from the speaker 28.

  FIG. 3 is a diagram for explaining an example of data stored in the ROM according to the present embodiment. As shown in FIG. 3, the ROM 22 according to the present embodiment includes a program area 301, a waveform data area 302, and a demo music data area 303. The demo song data area 303 includes data areas (for example, reference numerals 311, 312, 313) of a plurality of demo songs (for example, demo songs (1), (2), (3)...)). The demo song data area (eg, the data area 311 of the demo song (1)) is a time data record (see, for example, reference numerals 321 and 323) as time information, and key depression (note on) or key release (note off). Event data records (for example, reference numerals 322 and 324). The event data record includes the content of the event (note-on or note-off), pitch information (eg, note number according to MIDI) for the event, and velocity specifying the volume if a note-on event. .

  A time record located between two event records indicates a time interval between the two events. For example, when an event record 322 indicates a note-on event with a certain pitch and the event record 324 indicates a note-off event with the pitch, the time record 323 between them indicates the sound generation time of the musical tone with the pitch. Indicates.

  4 and 5 are diagrams for explaining an example of data stored in the RAM 23 according to the present embodiment. As shown in FIG. 4, the RAM 23 has a performance data storage area 400, a demo song corresponding history data area 401, a parameter area 402, a first difference data area 403, a player status information STATE storage area 404, a demo song storage area. It has a song data area 405 for storing song data, a storage area 406 for song number SONG, a storage area 407 for first timer value T1, and a storage area 408 for second timer value T2. As will be described in detail later, the first difference data 403 includes a first difference value for tempo (first tempo difference value) Δtempo, a first difference value for velocity (first velocity difference value) Δvel, and It has a data record of the first difference value (first gate time difference value) Δgate for the gate time corresponding to the key pressing time.

  The demo song corresponding history data area 401 includes second difference value data (see reference numeral 421) for each demo song (see, for example, reference numerals 411 and 412). The second difference data 421 corresponds to a second difference value (second tempo difference value) ΔTEMPO for tempo, a second difference value (second velocity difference value) ΔVEL for velocity, and a key pressing time. It has a data record of a second difference value (second gate time difference value) ΔGATE for the gate time.

  The parameter area 402 includes tempo data, velocity data, and gate time data (see reference numerals 413 to 415). In the present embodiment, the music tempo, volume (velocity), and gate time can be adjusted as performance information parameters. The performance information parameters include preset value data used in the performance of the demo song, and maximum value data and minimum value data indicating the upper and lower limits of the value, respectively.

  The tempo data 413 includes data records of tempo preset value data PR (0), tempo maximum value data MAX (0), and tempo minimum value data MIN (0) (see reference numeral 422). The volume data 414 includes data records of volume preset value data (PR (1), volume maximum value data MAX (1), and volume minimum value data MIN (1) (see reference numeral 423), and gate time data 415. , Gate time preset value data PR (2), gate time maximum value data MAX (2), and gate time minimum value data MIN (2) data records (see reference numeral 424).

  FIG. 5 is a diagram showing a data configuration example of the performance data storage area and the song data area according to the present embodiment. Both the performance data storage area and the song data area have the same data structure, and the performance data storage area will be described below. The record group 500 in the performance data storage area has an initial time record at the head (reference numeral 501), then a note-on event record (reference numeral 502), a gate time record (reference numeral 503), and a step time record (reference numeral 501). 504) is stored, and then a record of the next note-on event (reference numeral 505) is stored. The gate time indicates a time interval until the musical sound turned on by the note-on event is muted. On the other hand, the step time indicates the time interval between the note-on event and the next note-on event. That is, shortening the gate time (decreasing the value) indicates that the key on-time is shortened, and in the performance, the sense of jumping of the phrase is increased.

  FIG. 6 is a flowchart schematically showing an example of processing executed in the electronic musical instrument according to this embodiment. As shown in FIG. 6, when the power of the electronic musical instrument 10 is turned on, the CPU 21 executes initialization including clearing data in the RAM 23 and an image displayed on the screen of the display unit 14 (step 601). When the initialization is completed, the CPU 21 of the electronic musical instrument 10 executes a switch process (step 602). When the switch process ends, the CPU 21 executes a keyboard process (step 603). Although the process is mixed, the details of the keyboard process will be described first.

  FIG. 7 is a flowchart showing an example of keyboard processing according to the present embodiment. As shown in FIG. 7, the CPU 21 scans the keys of the keyboard 11 in a predetermined order (for example, from a key with a low pitch) (step 701), and whether or not the state of the key to be processed has changed. Is determined (step 702). If it is determined in step 702 that the key has been turned on, the CPU 21 generates a note-on event indicating that a musical tone having a pitch corresponding to the key is generated based on the depression of the key (step 702). 703). The note-on event includes velocity obtained based on the key pressing speed in addition to the pitch information. The CPU 21 gives a note-on event to the sound source unit 26 (step 704).

  Next, the CPU 21 determines whether or not the recording start flag RSTF is “1” (step 705). When it is determined Yes in step 705, the CPU 21 determines whether or not the key pressing of the key that has been turned on corresponds to the first key pressing (step 706). Here, the first key depression means the first key depression after the recording start flag becomes “1”. If it is determined Yes in step 706, the CPU 21 increments the address AD of the music data area (see reference numeral 405) in the RAM 23, that is, increases it by “1” (step 707). On the other hand, if it is determined No in step 706, the CPU 21 increases the address AD by “3” (step 708).

  Next, the CPU 21 stores an event (note-on event) at the position indicated by the address AD in the RAM 23 (step 709). The CPU 21 determines again whether or not the key depression corresponds to the first key depression (step 710). When it is determined No in step 710, the CPU 21 stores the first timer value T1 at the position indicated by the address (AD + 1) in the RAM 23 (step 711). Thereafter, the CPU 21 clears the first timer value T1 and the second timer value T2 to “0”.

  Next, a case where a key to be processed is turned off will be described. When the key is turned off, the CPU 21 generates a note-off event indicating that the musical tone having the pitch corresponding to the released key is muted (step 713). The CPU 21 gives a note-off event to the sound source unit 26 (step 714). Next, the CPU 21 determines whether or not the recording start flag RSTF is “1” (step 715). If it is determined Yes in step 715, the CPU 21 stores the second timer value T2 at the position indicated by the address (AD + 2) in the RAM 23 (step 716).

  As will be described later, in the recording start switch process (step 801 in FIG. 8, FIG. 9), when recording is started, the RSTF is “1”. Further, when RSTF changes to “1”, the timer count is started. When RSTF is “1”, a timer (not shown) is started, and the first timer value T1 and the second timer value T2 are incremented by a timer interrupt. Here, the cycle in which the timer is incremented (timer cycle) is determined based on the tempo value preset data PR (0).

  By the keyboard processing, performance data in which records are repeatedly stored in the order of event (note-on event), gate time, and step time is generated and stored in the performance data storage area 400 of the RAM 23.

  Next, the switch process (step 602) will be described in more detail. FIG. 8 is a flowchart illustrating an example of the switch processing according to the present embodiment. As shown in FIG. 8, the recording process includes a recording start switch process (step 801), a demo song selection switch process (step 802), a demo song start / stop switch process (step 803), and a parameter selection switch process (step 804). ) And parameter increase / decrease switch processing (step 805). Hereinafter, each processing will be described.

  FIG. 9 is a flowchart showing an example of the recording start switch process according to the present embodiment. As shown in FIG. 9, the CPU 21 determines whether or not the recording start switch in the switch unit 12 has been operated (step 901). The recording start switch (not shown) is a so-called toggle switch that is turned on by the first operation and turned off by the next operation. When there is a switch operation (Yes in Step 901), the CPU 21 inverts the recording start flag RSTF (Step 902) and determines whether the RSTF is “1” (Step 903). If it is determined Yes in step 903, the CPU 21 secures a performance data storage area (see reference numeral 400 in FIG. 4) in the RAM 23 (step 904). Further, the CPU 21 sets the head address of the performance actor storage area 23 of the RAM 23 as the parameter AD. Further, the CPU 21 stores the current time at the position indicated by the address AD in the RAM 23 (step 906), and stores the first timer value T1 and the second timer value T2 (see reference numerals 407 and 408 in FIG. 4). Reset to “0” (step 907). Thereafter, the CPU 21 starts a timer count (step 908). When the timer count is started, the first timer value T1 and the second timer value T2 are incremented in a timer interrupt process (not shown) executed at a predetermined timer period.

  When it is determined No in step 903, the CPU 21 stops the timer count (step 909). Thereby, the increment of the timer values T1 and T2 by the timer interrupt process is stopped. Further, the CPU 21 executes analysis processing (step 910). The analysis process will be described in detail later. Thereafter, the CPU 21 clears the data stored in the performance data storage area of the RAM 23 (step 911).

  Next, the demo song selection switch process (step 802) will be described. FIG. 10 is a flowchart showing an example of the demo song selection switch process according to the present embodiment. The demo song selection switch is, for example, a numeric keypad so that a number can be input. When the demo music selection switch is operated (Yes in step 1001), the CPU 21 stores the input number in the area of the music number SONG in the RAM 23 (see reference numeral 406 in FIG. 4) (step 1002). ). Thereafter, the CPU 21 executes music data conversion processing (step 1003).

  FIG. 11 and FIG. 12 are flowcharts showing an example of music data conversion processing according to the present embodiment. In the song data conversion process, the data format of the demo song data stored in the demo song data area (see reference numerals 321 to 324 in FIG. 3) is converted into the data format shown in FIG. The CPU 21 secures a song data area (see reference numeral 405 in FIG. 4) in the RAM 23 (step 1101). Next, the CPU 21 sets the start address of the demo music data area in the ROM 22 for the demo music indicated by the music number SONG as the parameter AD indicating the ROM address (step 1102). Further, the CPU 21 sets the head address of the music data area as the parameter AD1 indicating the address of the RAM 23 (step 1103).

  The CPU 21 stores the initial time at the position indicated by the parameter (address) AD1 in the RAM 23 (step 1104). Here, the time until the first note-on is started as the initial time is shown. Next, the CPU 21 initializes the first timer value T1 and the second timer value T2 (step 1105). Next, the CPU 21 reads the data at the position indicated by the parameter (address) AD in the ROM 22 and determines the data type (step 1106).

  When the data type is “time”, the CPU 21 adds the value of “time” to the first timer value T1 and adds the value of “time” to the second timer value T2 (step). 1107). If the data type is note-on, the CPU 21 increments the address AD1 (step 1108), and the note-on event that is data read from the ROM at the position indicated by the address AD1 in the RAM 23. Is stored (step 1109). If the data type is note-off, the CPU 21 adds the address AD1 by “2” and stores the second timer value T2 at the position indicated by the address AD1 in the RAM 23 (step 1111).

  After step 1107 or step 1111 is executed, as shown in FIG. 12, the CPU 21 increments the address AD (step 1204), and determines whether there is a record of demo song data at the address AD in the ROM 22 (step 1204). Step 1205). If NO in step 1205, the process returns to step 1106. On the other hand, if YES in step 1205, the process ends.

  After step 1109 is executed, the CPU 21 determines whether the data read from the ROM 22 is the first data of the demo song data (step 1201). If “Yes” is determined in step 1201, the process proceeds to step 1204. On the other hand, if it is determined No in step 1201, the first timer value T1 is stored in the RAM 23 at the position indicated by the address (AD1-2) (step 1202). Thereafter, the CPU 21 resets the first timer value T1 and the second timer value T2 to “0”, respectively (step 1203), and proceeds to step 1204.

  Next, the demo song start / stop switch process will be described. FIG. 13 and FIG. 14 are flowcharts showing an example of the demo song start / stop switch process according to the present embodiment. As shown in FIG. 13, the CPU 21 determines whether or not the demo song start / stop switch of the switch unit 21 has been operated (step 1301). The demo song start / stop switch (not shown) is a so-called toggle switch that is turned on by the first operation and turned off by the next operation. If there is a switch operation (Yes in step 1301), the start flag STF is inverted (step 1302), and it is determined whether the STF has become "1" (step 1303). If YES in step 1303, the tempo data of the demo song designated by the song number Song is given as the tempo preset value data PR (0) in the RAM 23 (step 1306). Further, the CPU 21 sets the head address of the music data in the RAM 23 as the parameter AD (step 1307). Next, the CPU 21 uses AD to read the position value (time) indicated by the address AD in the music data area of the RAM 23, and uses the read value as the first timer value T 1 and the second value in the RAM 23. Is stored as a timer value T2 (step 1308). Thereafter, the CPU 21 changes the tempo preset value data PR (0) in the RAM 23 based on the player status information STATE (step 1309). The change of the value based on this STATE will be described in detail later.

  Next, the CPU 21 gives a predetermined volume default value to the volume preset value data PR (1) in the RAM 23 (step 1401). Next, the CPU 21 changes the volume preset value data PR (1) in the RAM 23 based on the player status information STATE (step 1402).

  Further, the CPU 21 gives a predetermined gate time coefficient default value to the gate time preset value data PR (2) in the RAM 23 (step 1403). Next, the CPU 21 changes the gate time preset value data PR (2) in the RAM 23 based on the player status information STATE (step 1404). Thereafter, the CPU 21 determines a timer period based on the tempo preset value data PR (0) (step 1405), and starts a timer count (step 1406). The timer count when the demo song is played is different from the timer count when the performance is recorded. As will be described in demo music processing (FIGS. 19 and 20), which will be described later, step times and gate times are stored in the first timer value T1 and the second timer value T2, respectively. The timer value is subtracted.

  When it is determined No in step 1303, the CPU 21 executes an all note off process (step 1304). In the all note-off process, note-off events are generated for all musical sounds that are being generated and transmitted to the sound source unit 26. Next, the CPU 21 stops the timer count (step 1305).

  Next, the parameter selection switch process (step 804) will be described. FIG. 15 is a flowchart illustrating an example of parameter selection switch processing according to the present embodiment. The parameter whose value is increased or decreased by the parameter increase / decrease switch described later is selected by the parameter selection switch. As shown in FIG. 15, the CPU 21 determines whether or not the tempo switch of the switch unit 12 is turned on (step 1501). If it is turned on, “0” is given to the switch selection parameter P (step 1502). . If it is determined No in step 1501, the CPU 21 determines whether the volume switch of the switch unit 12 is turned on (step 1503). If it is turned on, “1” is set to the switch selection parameter P. (Step 1504). If it is determined No in step 1503, it is determined whether the gate time switch is turned on (step 1505). If it is turned on, "2" is given to the parameter P (step 1507). After steps 1502, 1505, and 1506, the CPU 12 resets the switch pressing number counter value m to “0” (step 1507).

  Next, the parameter increase / decrease switch process (step 805) will be described. FIG. 16 is a flowchart illustrating an example of parameter increase / decrease switch processing according to the present embodiment. As shown in FIG. 16, the CPU 12 determines whether or not the increase switch (“+” switch) of the switch unit 12 is turned on (step 1601). If it is determined Yes in step 1601, it is determined whether the switch pressing number counter value m is smaller than the maximum value data MAX (P) stored in the RAM 23 (step 1602). In the present embodiment, the RAM 23 stores tempo maximum value data MAX (0), volume maximum value data MAX (1), and gate time maximum value data MAX (2). Therefore, MAX (P) designated by the switch selection parameter P is read and compared with the counter value m.

  If YES is determined in step 1602, the CPU 21 increments the switch pressing frequency parameter (step 1603), and increments the preset value data PR (P) designated by the switch selection parameter P (step 1604).

  When it is determined No in step 1601, it is determined whether the decrease switch (“−” switch) of the switch unit 12 is turned on (step 1605). If it is determined Yes in step 1605, it is determined whether the switch pressing number counter m is larger than the minimum value data MIN (P) stored in the RAM 23 (step 1606). In the present embodiment, the RAM 23 stores tempo minimum value data MIN (0), volume minimum value data MIN (1), and gate time minimum value data MIN (2). Therefore, MIN (P) designated by the switch selection parameter P is read and compared with the counter value m.

  If it is determined Yes in step 1606, the CPU 21 decrements the switch pressing frequency parameter (step 1607), and decrements the preset value data PR (P) designated by the switch selection parameter P (step 1608).

  Next, the analysis process in step 910 of the recording start switch process will be described in more detail. 17 and 18 are flowcharts showing an example of analysis processing according to the present embodiment. The analysis process compares the performance data stored in the performance data storage area (see reference numeral 400 in FIG. 4) in the RAM 23 with the song data stored in the music data area (see reference numeral 405 in FIG. 4). Based on the comparison, each difference value is updated, and the player state information STATE is updated from the difference value.

  As shown in FIG. 17, the CPU 21 performs the performance data stored in the performance data storage area (see reference numeral 400 in FIG. 4) in the RAM 23 and the song data stored in the song data area (see reference numeral 405 in FIG. 4). Are compared (step 1701). The performance data is stored in the RAM 23 by keyboard processing (FIG. 7). The song data is stored in the RAM 23 by the song data conversion process (FIGS. 11 and 12).

  The CPU 21 executes tempo analysis (step 1702). In step 1702, the CPU 21 refers to the step time record included in the song data, calculates the first sum Σ of the step time (step time of the song data), and records the step time included in the performance data. , The second sum Σ of step times (step time of performance data) is obtained. Next, the CPU 21 obtains a ratio of the second sum to the first sum (second sum / first sum), and multiplies the obtained ratio by the tempo value of the music data. Thereby, the tempo of the performance by the performer can be obtained from the ratio of the performance based on the performance data (performance by the performer) to the demo performance.

  In step 1702, the CPU 21 stores ((tempo of performance by the performer) − (tempo of music data)) in the RAM 23 as the first tempo difference value Δtempo.

  Next, the CPU 21 executes velocity analysis (step 1703). In step 1703, referring to the velocity included in the performance data event record in the RAM 23, the CPU 21 calculates the average velocity value in the performance data and includes it in the song data event (note-on event) record. The average velocity value in the music data is calculated with reference to the recorded velocity.

  The CPU 21 stores ((average velocity value in performance data) − (average velocity value in music data)) in the RAM 23 as the first velocity difference value Δvel.

  Further, the CPU 21 performs gate time analysis (step 1704). In step 1704, the CPU 21 calculates the average value of the records in the performance data by referring to the record of the gate time of the performance data in the RAM 23, and calculates the average of the records in the song data by referring to the record of the gate time of the song data. Calculate the value.

  The CPU 21 stores ((average value of gate time in performance data) − (average value of gate time in music data)) in the RAM 23 as the first gate time difference value Δgate.

Next, the CPU 21 reads the second tempo difference value ΔTEMPO, the second velocity difference value ΔVEL, and the second gate time difference value ΔGATE from the RAM 23 (step 1705). Further, the CPU 21 calculates a difference value between the first difference value and the corresponding second difference value (steps 1706 to 1708). More specifically,
The CPU 21
Δt (third tempo difference value) = Δtempo−ΔTEMPO
Δv (third velocity difference value) = Δvel−ΔVEL
Δg (third gate time difference value) = Δgate−ΔGATE
Is calculated. Next, the CPU 21 corrects the player status information STATE in the RAM 23 according to a combination of (Δt, Δv, Δg). More specifically, the CPU 21 prepares a table in the ROM 22 in which a set of values (Δt, Δv, Δg) is associated with the value of the player status information STATE, and STATE = table value (TABLE (Δt , Δv, Δg)).

Hereinafter, the table value will be described. The table value increases as Δt increases, and increases as Δv increases, while the value decreases as Δg increases. For example, if α1, α2, and α3 are positive coefficients,
TABLE (Δt, Δv, Δg) = α1 · Δt + α2 · Δv−α3 · Δg
It becomes the value. Therefore, the value calculated based on the above equation may be stored in the ROM 22 in association with the set of values (Δt, Δv, Δg).

  Next, the CPU 21 initializes the parameter n to “0” (step 1801), and changes the maximum value MAX (n) and the minimum value MIN (n) of the performance information specified by the parameter n based on STATE. (Step 1802). In step 1802, for example, new MAX (n) and MIN (n) may be calculated using the positive coefficient βn as follows.

MAX (n) = MAX (n) + STATE · βn · MAX (n)
MIN (n) = MIN (n) + STATE · βn · MIN (n)
That is, when the player status information STATE takes a positive value, the maximum value and the minimum value of the performance information increase. That is, for each of the tempo, volume (velocity), and gate time, in the parameter increase / decrease switch process (step 805 in FIG. 8, FIG. 16), the range in which the value can be increased / decreased by the user's switch operation is upward (value increases). To the side). On the other hand, when the player state information STATE takes a negative value, the range in which the value can be increased or decreased by the user's switch operation is reduced downward (the value decreases) for each of the tempo, volume (velocity), and gate time. To the side).

  The CPU 21 increments the parameter n (step 1803) and determines whether the parameter n is larger than “2” (step 1804). If NO in step 1804, the process returns to step 1802. If YES is determined in step 1804, the CPU 21 updates the second tempo difference value ΔTEMPO in accordance with the first tempo difference value Δtempo (step 1805), and the first velocity difference value Δvel in accordance with the first velocity difference value Δvel. 2 is updated (step 1806), and the second gate time difference value ΔGATE is updated according to the first gate time difference value Δgate (step 1807). For example, the update of the second difference value is realized by recalculating the average value of the difference values in consideration of the newly calculated first difference value.

  For example, if the number of times of analysis processing is m, the second tempo difference value ΔTEMPO, the second velocity difference value ΔVEL, and the second gate time difference value ΔGATE are newly calculated as follows. .

ΔTEMPO = (1 / m) · ((m−1) · ΔTEMPO + Δtempo)
ΔVEL = (1 / m) · ((m−1) · ΔVEL + Δtempo)
ΔGATE = (1 / m) · ((m−1) · ΔGATE + Δtempo)
Each newly calculated second difference value is stored in the RAM 23.

  In the demo song start / stop switch process (FIGS. 13 and 14), the tempo preset value data PR (0), the volume preset value data PR (1), and the gate time preset value are based on the player status information STATE. The data PR (2) has been changed (step 1309, step 1402, step 1404). Here, for example, a new PR (n) may be calculated as follows using a predetermined positive count γn.

PR (n) = PR (n) + STATE · γn · PR (n)
When the switch process (step 602) and the keyboard process (step 603) are completed, the CPU 21 executes a demo music process (step 604). 19 and 20 are flowcharts showing an example of the demo song processing according to the present embodiment. As shown in FIG. 19, the CPU 21 determines whether the start flag STF is “1” (step 1901). If it is determined Yes in step 1901, it is determined whether the minimum unit time based on the timer period has elapsed (step 1902). When it is determined Yes in step 1902, the CPU 21 decrements the second timer value T <b> 2 (step 1903), and determines whether the second timer value T <b> 2 has become “0” (step 1904). . If it is determined Yes in step 1904, the CPU 21 generates a note-off event for the musical sound currently being generated and transmits it to the sound source unit 26 (step 1905). Next, the CPU 21 decrements the first timer value T1 (step 1906), and determines whether or not the first timer value T1 has become “0” (step 1907). If it is determined Yes in step 1907, the CPU 21 increments the parameter AD indicating the address of the song data area in the RAM 23 (step 1908).

  Next, the CPU 21 determines whether or not there is a record of song data at the position indicated by the parameter (address) AD in the song data area in the RAM 23 (step 1909). If there is no record of song data (Yes in step 1909), the CPU 21 executes an all-note-off process to generate a note-off event for all musical tones that are sounding, and generates the note-off event as the sound source unit 26. (Step 1910). Thereafter, the CPU 21 resets the start flag STF to “0” (step 1911) and stops the timer count (step 1912).

  If it is determined No in step 1909, the CPU 21 reads data at the position indicated by the parameter (address) AD in the RAM 23 and determines the data type (step 2001). If the data type is the step time, the CPU 21 stores the data value as the first timer value T1 in the RAM 23 (step 2002). If the data type is an event, the CPU 21 generates a note-on event and transmits it to the sound source unit 26 (step 2003).

  If the data type is gate time, the CPU 21 generates a note-off event and transmits it to the sound source unit 26 (step 2004). Thereafter, the CPU 21 changes the read gate time based on the gate time preset value data PR (2). The CPU 21 stores the changed gate time preset value as the second timer value T2 in the RAM 23 (step 2005).

  After the demo song processing (step 604), the sound source unit 26 executes sound source sound generation processing (step 605). In the sound source sound generation process, the sound source unit 26 generates musical tone data with a predetermined pitch and velocity according to the received note-on event. In addition, the sound source unit 26 mutes the musical tone having the pitch indicated by the note-off event according to the received note-off event.

  After the sound source sound generation process (step 605), the CPU 21 executes other processes (step 606) including updating the display unit 14 and the like, and returns to step 602.

  In the present embodiment, in the parameter increase / decrease switch process, performance information parameters such as tempo, volume, and gate time are changed within the range of the maximum value and the minimum value. The timer period, that is, the playback speed of the music is determined by tempo preset value data PR (0) whose value has been increased or decreased by the parameter increase / decrease switch (step 1405). Further, the velocity at the time of demo music performance is adjusted by the volume preset value data PR (1). In addition, the gate time at the time of playing the demo song, that is, the key on time is adjusted by the gate time preset value data PR (2).

  Further, the maximum value and the minimum value, which are variable ranges of the performance information parameter, are determined based on the difference between the performance data generated by the performance by the performer and the music data of the demo music.

  In the present embodiment, the CPU 21 records a note-on event, a step time that defines the time until the next note-on event, and a gate time that defines the time until mute according to the key operation by the performer. Performance data including is generated. Further, the CPU 21 reads the demo music data in accordance with a predetermined timer cycle based on the tempo information, and gives a sounding or muting instruction to the sound source unit 26. Further, the CPU 21 adjusts the performance information including the tempo for playing the demo song between the respective maximum and minimum values according to the switch operation by the performer. The CPU 11 compares the record of the demo song data stored in the demo song data storage area with the record of the performance data stored in the performance data storage area, and determines the maximum value and the minimum value that are the variable range of the performance information. decide. Therefore, it is possible to appropriately change the variable range of the performance information in the automatic performance of the demo song based on the actual performance considered to reflect the psychological state of the performer.

  In the present embodiment, the third tempo difference value obtained by subtracting the second tempo difference value ΔTEMPO, which is an average value of the first tempo difference values obtained by performing a plurality of performances, from the first tempo difference value Δtempo. Δt is obtained, and based on the third tempo difference value Δt, the maximum value and the minimum value which are variable ranges of the tempo are determined.

  In the present embodiment, similarly, a third velocity obtained by subtracting a second velocity difference value ΔVEL, which is an average value of the first velocity difference values obtained by performing a plurality of performances, from the first velocity difference value Δvel. The difference value Δv is obtained, and based on the third velocity difference value Δv, the maximum value and the minimum value that are the variable range of the velocity are determined. Further, a third gate time difference value Δg obtained by subtracting the second gate time difference value ΔGATE, which is an average value of the first gate time difference values due to a plurality of performances, is obtained from the first gate time difference value Δgate. Based on the third gate time difference value Δg, the maximum value and the minimum value which are variable ranges of the gate time are determined.

  Considering that the performance tendency appears more appropriately when the performer performs the performance of the demo song several times, the first difference value is further calculated from the second difference value reflecting the performance tendency. The player status information is determined by looking at how it has changed.

  The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say.

  For example, in the above-described embodiment, the second tempo difference value, which is the average value of the first tempo difference value, the first velocity difference value, and the first gate time difference value due to a plurality of performances, 2 velocity difference values and second gate time difference values are calculated. Then, the second difference value corresponding to the first difference value is compared to obtain a third difference value, and the third difference value (Δt (third tempo difference value), Δv (third The player status information STATE is obtained from the velocity difference value) and Δg (third gate time difference value)). That is, in consideration of the fact that the player's psychological tendency tends to appear more prominently when the performer performs the demo song a plurality of times, the first difference value from which the performance tendency appears is further reduced to the first. The player status information is determined by looking at how the difference value of the player has changed.

  However, the present invention is not limited to this. Instead of the third tempo difference value Δt, the first tempo difference value Δtempo, the third velocity difference value Δv instead of the first velocity difference value Δvel, and the third gate time difference. Instead of the value Δg, the first gate time difference value Δgate may be used to obtain STATE = table value (TABLE (Δtempo, Δvel, Δgate). Thereby, the player's psychological state by a single performance It is possible to acquire the player status information reflecting the above, and to determine the maximum value and the minimum value of the performance information based on this.

DESCRIPTION OF SYMBOLS 10 Electronic musical instrument 11 Keyboard 12 Switch part 14 Display part 16 Key 21 CPU
22 ROM
23 RAM
24 Sound System 26 Sound Source 27 Audio Circuit 28 Speaker

Claims (9)

A plurality of performance controls each assigned a pitch, and
Performance data generating means for generating performance data including records indicating events, sound generation timings and mute timings according to the operation of the performance operator by the performer , and storing the performance data in the performance data storage area of the storage means;
For each of the musical sounds constituting the music, a record of music data including an event including the pitch, a record indicating the sound generation timing and the mute timing is stored in the music data storage area of the storage means based on a preset first tempo. By reading from, the music performance control means for generating performance information according to the event, sound generation timing and mute timing included in the record,
Performance information adjusting means for adjusting an upper limit and a lower limit of the first tempo in accordance with an input by the performer,
The performance information adjusting means is
Calculating a first tempo difference value corresponding to a value obtained by subtracting the first tempo from a second tempo determined based on the performance data;
Obtaining player psychological information indicating the player's psychological state based on the first tempo difference value, and determining an upper limit and a lower limit of the first tempo based on the acquired player psychological information. An automatic performance device characterized by The storage means stores a second tempo difference value corresponding to an average value of the first tempo difference values associated with a plurality of performances by the performer;
The performance information adjusting means is
The performer for respectively increasing the upper limit and the lower limit of the first tempo as the third tempo difference value is increased by subtracting the first tempo difference value from the second tempo difference value. 2. The automatic performance apparatus according to claim 1, wherein psychological information is acquired, and upper and lower limits of a first tempo of the performance information are determined based on the acquired player psychological information. A plurality of performance controls each assigned a pitch, and
Performance data generating means for generating performance data including records indicating events, sound generation timings and mute timings according to the operation of the performance operator by the performer, and storing the performance data in the performance data storage area of the storage means;
For each of the musical tones that make up the music, an event included in the record is obtained by reading from the music data storage area of the storage means a record of the music data including an event including the pitch, a record indicating the sound generation timing and the mute timing. Music performance control means for generating performance information according to the sounding timing and mute timing;
Performance information adjusting means for adjusting an upper limit and a lower limit of a gate time, which is a time between a sound generation timing and a mute timing, included in the performance information, according to the input by the performer,
The performance information adjusting means is
Calculating a first gate time difference value corresponding to a value obtained by subtracting a second gate time for each musical tone in the music data from a first gate time for each musical tone in the performance data;
Obtaining player psychological information indicating the player's psychological state based on the first gate time difference value, and determining an upper limit and a lower limit of the gate time based on the acquired player psychological information. An automatic performance device. The storage means stores a second gate time difference value corresponding to an average value of the first gate time difference values associated with a plurality of performances by the performer;
The performance information adjusting means is
The performer for respectively increasing the upper limit and the lower limit of the gate time as the third tempo difference value decreases by subtracting the second gate time difference value from the first gate time difference value. The automatic performance device according to claim 3, wherein psychological information is acquired, and an upper limit and a lower limit of the gate time are determined based on the acquired player psychological information. A plurality of performance controls each assigned a pitch, and
Performance data generating means for generating performance data including records indicating events, sound generation timings and mute timings according to the operation of the performance operator by the performer, and storing the performance data in the performance data storage area of the storage means;
For each of the musical tones that make up the music, a record of music data including an event that includes the pitch and volume, a record that indicates the sound generation timing and the mute timing is included in the record by reading it from the music data storage area of the storage means Music performance control means for generating performance information according to the event to be generated, the sounding timing and the mute timing,
Performance information adjusting means for adjusting an upper limit and a lower limit of velocity corresponding to the volume of the event included in the performance information according to the input by the performer,
The performance information adjusting means is
Calculating a first velocity difference value corresponding to a value obtained by subtracting a second velocity for each musical tone in the music data from a first velocity for each musical tone in the performance data;
Obtaining player psychological information indicating the player's psychological state based on the first velocity difference value, and determining an upper limit and a lower limit of the velocity of the performance information based on the acquired player psychological information. An automatic performance device characterized by The storage means stores a second velocity difference value corresponding to an average value of the first velocity difference values associated with a plurality of performances by the performer;
The performance information adjusting means is
The player psychological information for respectively increasing the upper limit and the lower limit of the volume as the third velocity difference value is increased by subtracting the second velocity difference value from the first velocity difference value. 6. The automatic performance apparatus according to claim 5, wherein the automatic performance device is obtained and an upper limit and a lower limit of velocity of the performance information are determined based on the player psychological information. On the computer,
A performance data generating step for generating performance data including a record indicating an event, a sound generation timing and a mute timing according to the operation of the performance operator by the performer, and storing the performance data in a performance data storage area of the storage means;
For each of the musical sounds constituting the music, a record of music data including an event including the pitch, a record indicating the sound generation timing and the mute timing is stored in the music data storage area of the storage means based on a preset first tempo. A music performance control step for generating performance information in accordance with the event, sound generation timing and mute timing included in the record,
Performing a performance information adjustment step of adjusting an upper limit and a lower limit of the first tempo in accordance with an input by the performer,
The performance information adjustment step includes:
Calculating a first tempo difference value corresponding to a value obtained by subtracting the first tempo from a second tempo determined based on the performance data;
Obtaining player psychological information indicating the player's psychological state based on the first tempo difference value, and determining upper and lower limits of the first tempo based on the obtained player psychological information; The automatic performance program characterized by including. On the computer,
A performance data generating step for generating performance data including a record indicating an event, a sound generation timing and a mute timing according to the operation of the performance operator by the performer, and storing the performance data in a performance data storage area of the storage means;
For each of the musical tones that make up the music, an event included in the record is obtained by reading from the music data storage area of the storage means a record of the music data including an event including the pitch, a record indicating the sound generation timing and the mute timing. A music performance control step for generating performance information according to the pronunciation timing and the mute timing;
In accordance with the input by the performer, a performance information adjustment step for adjusting an upper limit and a lower limit of a gate time, which is a time between the sound generation timing and the mute timing included in the performance information, is executed,
The performance information adjustment step includes:
Calculating a first gate time difference value corresponding to a value obtained by subtracting a second gate time for each musical tone in the music data from a first gate time for each musical tone in the performance data;
Obtaining player psychological information indicating the player's psychological state based on the first gate time difference value, and determining upper and lower limits of the gate time based on the obtained player psychological information; An automatic performance program characterized by including. On the computer,
A performance data generating step for generating performance data including a record indicating an event, a sound generation timing and a mute timing according to the operation of the performance operator by the performer, and storing the performance data in a performance data storage area of the storage means;
For each of the musical tones that make up the music, a record of music data including an event that includes the pitch and volume, a record that indicates the sound generation timing and the mute timing is included in the record by reading it from the music data storage area of the storage means Music performance control step for generating performance information according to the event to be played, the sounding timing and the mute timing,
A performance information adjusting step for adjusting an upper limit and a lower limit of velocity corresponding to the volume of the event included in the performance information in accordance with the input by the performer,
The performance information adjustment step includes:
Calculating a first velocity difference value corresponding to a value obtained by subtracting a second velocity for each musical tone in the music data from a first velocity for each musical tone in the performance data;
Obtaining player psychological information indicating the player's psychological state based on the first velocity difference value, and determining an upper limit and a lower limit of the velocity of the performance information based on the obtained player psychological information; The automatic performance program characterized by including.

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