JP5578003B2 - Electronic musical instruments and programs - Google Patents

Description

  The present invention relates to an electronic musical instrument and a program.

  Conventionally, registration information including a group of various parameters for specifying a tone generation form including tone color, volume, type of effect to be added, etc. is registered in a memory, There is known an electronic musical instrument having a so-called registration function that forms a musical tone based on selected registration information, that is, parameters, when registration information registered in the memory is selected.

  According to this type of electronic musical instrument, desired registration information can be called by a predetermined operation to set the operation mode of each part of the electronic musical instrument. It is possible to improve.

  In the above-described conventional electronic musical instrument, in response to the call of registration information, all the current parameters are updated to all the parameters of the called registration information, and as a result, the musical sound generation mode unintended by the user is changed. Bad effects occur. Therefore, in recent years, in order to avoid such problems, only the last changed parameter is maintained as it is, and other parameters are updated to the parameters of the called registration information, and the tone generation form is changed. Has also been proposed (Patent Document 1).

JP 2002-23756 A

  However, although there is a possibility that only the parameter set last is what the user wants to maintain as it is, it is not necessarily absolute. More often you want to keep multiple parameters, including the last changed parameter. For this reason, the conventional method often does not necessarily reflect the user's intention.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to provide an electronic musical instrument and a program that can change a musical sound generation mode in accordance with a user's intention.

In order to achieve the above object, an electronic musical instrument according to the first aspect of the present invention provides:
A current storage area for storing current information including a plurality of parameters for specifying a current musical sound generation form and a parameter change time associated with each of the plurality of parameters, and a musical sound generation form registered in the past A storage unit having a registration storage area for storing registration information including a plurality of parameters;
An operation unit that receives a change operation for changing the parameter of the current information and a call operation that is an operation that specifies and calls the registration information;
In response to the change operation received by the operation unit, the parameter of the current information recorded in the current storage area is changed, and the changed time is associated with the changed parameter in the current storage area. Parameter changing means for recording the change time;
In response to the call operation received by the operation unit, among the plurality of parameters included in the current information recorded in the current storage area, corresponding to a change time that falls within a predetermined range from the current time Updating means for updating a parameter other than the attached parameter to a parameter included in the registration information designated by the call operation;
A musical sound generating means for generating a musical sound by a sound generation unit according to a plurality of parameters included in the current information currently recorded in the current storage area;
Is provided.

In order to achieve the above object, a program according to the second aspect of the present invention provides:
A current storage area for storing current information including a plurality of parameters for specifying a current musical sound generation form and a parameter change time associated with each of the plurality of parameters, and a musical sound generation form registered in the past A storage unit having a registration storage area for storing registration information including a plurality of parameters;
A computer that controls a change operation that changes the parameter of the current information and a call operation that is a call operation that specifies and calls the registration information.
In response to the change operation received by the operation unit, the parameter of the current information recorded in the current storage area is changed, and the changed time is associated with the changed parameter in the current storage area. Parameter changing means for recording the change time,
In response to the call operation received by the operation unit, among the plurality of parameters included in the current information recorded in the current storage area, corresponding to a change time that falls within a predetermined range from the current time Updating means for updating a parameter other than the attached parameter to a parameter included in the registration information designated by the call operation;
A musical sound generating means for generating a musical sound by a sound generation unit according to a plurality of parameters included in the current information currently recorded in the current storage area;
To function as.

  According to the present invention, it is possible to change the tone generation form according to the user's intention.

It is a figure which shows the structure of the electronic musical instrument which concerns on one Embodiment of this invention. It is a figure which shows the hardware constitutions of the electronic musical instrument which concerns on one Embodiment of this invention. 1 is a schematic external view of an electronic musical instrument according to an embodiment of the present invention. It is a figure which shows an example of the memory area of the memory | storage part of the electronic musical instrument which concerns on one Embodiment of this invention. It is a figure which shows an example of the data content and correspondence of current information and change time. It is a figure which shows an example of the data content of registration information. It is a figure which shows an example of the data content about the accompaniment pattern which ROM memorize | stores. It is a flowchart of the setting process of the musical sound generation form which the electronic musical instrument which concerns on one Embodiment of this invention performs. It is a figure for demonstrating the content of the process according to a preservation | save operation in the setting process of the musical sound generation form which the electronic musical instrument which concerns on one Embodiment of this invention performs. It is a figure for demonstrating the content of the process according to call operation in the setting process of the musical sound generation form which the electronic musical instrument which concerns on one Embodiment of this invention performs. It is a figure for demonstrating the content (parameter update) of the process according to call operation in the setting process of the musical sound generation form which the electronic musical instrument which concerns on one Embodiment of this invention performs. It is a figure which shows an example of the current information after the update after the process in FIG. 11, and the data content of a change time. It is a figure for demonstrating the process which changes the parameter of current information. It is a flowchart of the performance process which the electronic musical instrument which concerns on one Embodiment of this invention performs.

  An embodiment according to the present invention will be described with reference to the drawings. In addition, this invention is not limited by the following embodiment and drawing. It goes without saying that changes (including deletion of components) can be added to the following embodiments and drawings. Moreover, in the following description, in order to make an understanding of this invention easy, description of a known technical matter is abbreviate | omitted suitably.

  The electronic musical instrument in the present embodiment is a keyboard and is described as a computer that operates according to a program. However, the electronic musical instrument according to the present invention may be another electronic musical instrument (for example, an electronic organ or an electric guitar). . The configuration described below is appropriately changed depending on the electronic musical instrument according to the present invention.

  The electronic musical instrument 100 according to the present embodiment has an operation panel for setting a plurality of parameters for specifying a musical sound generation form that is a form of musical sound to be generated. The electronic musical instrument 100 handles parameters set by the user operating the operation panel. In the present embodiment, the tone generation form is composed of a plurality of elements such as a timbre, a tempo, and an accompaniment pattern, and each parameter is for specifying the content of each element. Each parameter is a number for identifying the type of tone color, a tempo value, and a number for identifying the type of accompaniment pattern. These numbers or values, that is, parameters are changed by operating the operation panel. In the present embodiment, this parameter can be said to be a setting state of a switch included in the operation panel. The electronic musical instrument 100 generates a musical sound in a musical sound generation form specified by this parameter by generating a musical sound according to a currently set parameter (current switch setting state).

  In the present embodiment, the parameters handled by the electronic musical instrument 100 are for the elements of the timbre type, the tempo value, and the accompaniment pattern, but the present invention is not limited to this. The parameters may relate to the envelope of the musical sound to be generated, the effect to be applied, and the like.

  Next, the configuration of the electronic musical instrument 100 according to the present embodiment will be described with reference to FIGS. 1 and 2.

  The electronic musical instrument 100 includes a control unit 110, a storage unit 120, an operation unit 130, a sound generation unit 140, a display unit 150, and a time measuring unit 160.

  In the present embodiment, the control unit 110 includes a CPU 111 and a ROM (Read Only Memory) 112. The CPU 111 controls each component of the electronic musical instrument 100 according to a control program stored in the ROM 112. At this time, the CPU 111 reads and uses various data stored in the ROM 112 as appropriate. The control program, various data, and the like stored in the ROM 112 may be read once and used in the storage unit 120 (RAM (Random Access Memory) 121 described later).

  At least a part of the functions of the CPU 111 may be realized by various dedicated circuits. That is, at least a part of the control unit 110 may be configured by various dedicated circuits.

  The ROM 112 stores a control program, various data used by the CPU 111, and the like.

  With the configuration as described above, the control unit 110 controls the entire electronic musical instrument 100 and performs the processing described below.

  The storage unit 120 is configured by a RAM 121 in the present embodiment. The RAM 121 stores data used by the CPU 111 and stores data generated by the CPU 111. In the present embodiment, the RAM 121 is configured by a non-volatile memory (flash memory or the like) that does not lose the stored contents (data) even if power is not supplied from the outside of the electronic musical instrument 100. The RAM 121 may be configured by a combination of a battery and an SRAM (Static Random Access Memory) that does not lose the stored contents even when power is not supplied.

  In the present embodiment, with the configuration as described above, the storage unit 120 stores (holds) data used by the control unit 110, data generated by the control unit 110, and the like.

  In the present embodiment, the operation unit 130 includes a keyboard 131 and an SW (switch) unit (operation panel) 132, and receives an operation from the user.

  The keyboard 131 is a signal corresponding to a key press or key release operation by a performer (user), that is, a key number (pitch) that is the key number pressed, a key press operation (note-on) or a key release operation ( Note off) and a signal (key press signal) indicating the operation speed (velocity) are output to the control unit 110.

  The SW unit 132 includes a plurality of various switches. These switches are used for changing the setting of a parameter that specifies a tone generation form, storing the parameter, and calling the stored parameter. Each switch generates an operation signal (hereinafter referred to as a switch operation signal) indicating that the switch is operated by the user under the control of the control unit 110, and supplies the generated switch operation signal to the control unit 110. The SW unit 132 may be configured by, for example, another input device (for example, a sensor unit of a touch panel) that supplies a predetermined operation signal to the control unit.

  The control unit 110 performs a process according to a key pressing signal or a switch operation signal supplied in a process described later.

  The sound generation unit 140 includes a sound source unit 141 and a speaker 142.

  The control unit 110 receives a key depression signal based on key depression or key release from the keyboard and a switch operation signal from a switch for changing the tone color of a musical tone on the operation panel, and conforms to the MIDI (Musical Instrument Digital Interface) standard. Based on the event data (MIDI message), the sound source unit 141 is supplied. The tone generator 141 performs tone generation, muting, or change of the tone color of the currently set tone according to the supplied event data. The sound source unit 141 generates a musical tone signal representing a musical tone to be generated according to the supplied event data and the currently set tone color, and supplies the musical tone signal to the speaker 142. The speaker 142 generates a tone signal generated by the sound source unit 141 and supplied from the sound source unit 141. The sound source unit 141 performs a mute operation when the mute instruction (note-off) event data is supplied. In this embodiment, in this way, the control unit 100 supplies the event data to the sound generation unit 140 to control the sound generation unit 140 and cause the sound generation unit 140 to generate a musical sound. Note that at least a part of the sound generation unit 140 (such as the speaker 142) may be outside the electronic musical instrument 100. That is, the electronic musical instrument 100 may not include at least a part of the sound generation unit 140.

  The display unit 150 is configured by an appropriate display device such as a liquid crystal display. The display unit 150 displays a predetermined screen (for example, a screen displaying a tone color type, a tempo value, and an accompaniment pattern type set by a switch on the operation panel) under the control of the control unit 110.

  The timer unit 160 is configured by, for example, an RTC (Real Time Clock) including a crystal resonator, an oscillation circuit, and the like, and is used for specifying time (including date). The control unit 110 refers to the time measuring unit 160 and specifies the current time.

  Here, FIG. 3 shows a schematic appearance of the electronic musical instrument 100 having the above configuration. The electronic musical instrument 100 includes a keyboard 131 and further includes a speaker 142. In addition, the electronic musical instrument 100 includes an operation panel and a display unit 150 provided with an SW unit 132 including a plurality of predetermined switches. As a result, the user can operate the SW unit 132 while viewing the screen displayed on the display unit 150.

  Next, a storage area of the storage unit 120 (here, the RAM 121) and data contents stored in the storage area will be described with reference to FIGS.

  As shown in FIG. 4, the storage area of the storage unit 120 includes a current storage area, a registration storage area, and other storage areas. The current storage area is a storage area for storing current information and change time. The current information is information including a plurality of parameters that specify the current musical sound generation mode, that is, a plurality of parameters that are currently set in the electronic musical instrument 100. The change time is the time when each parameter is changed, and is the latest change time for each parameter. There are a plurality of registration storage areas, each of which is a storage area for storing one registration information. The registration information is information including a plurality of parameters that specify musical tone generation forms registered in the past. Further, other data (data necessary for the operation of the electronic musical instrument 100) is recorded in the other storage area.

  The electronic musical instrument 100 generates a musical tone according to a plurality of parameters of current information stored in the current storage area, that is, a musical tone that is specified by a setting state of a switch on the operation panel. If the user changes the setting state of the switch on the operation panel, the data contents (parameter values, etc.) of the current information stored in the current storage area are changed accordingly. That is, the plurality of parameters of the current information directly represent the setting state of the switch on the operation panel in the current electronic musical instrument 100, and the electronic musical instrument 100 plays a musical sound in a generation form corresponding to this setting state. Occur.

  Registration information recorded in the registration storage area has the same form as the current information. The plurality of parameters specifying the tone generation form registered in the past in the registration information are parameters (switch setting state) set by the user in the past or set in the electronic musical instrument 100 from the beginning. The registration information is not used for musical tone generation unless it is called as current information.

  As shown in FIG. 5, the current information includes, for example, each element of the tone generation form such as a parameter that is a number that specifies the type of timbre, a parameter that is a tempo value, and a parameter that is a number that specifies an accompaniment pattern. It consists of data of each parameter that specifies the contents of. Furthermore, in the present embodiment, the data of the change time is associated with each parameter and recorded in the current storage area. The change time is the time when the content of the parameter is changed. Similar to the current information, the registration information is generated as shown in FIG. 6, for example, a parameter that is a number that specifies the type of timbre, a parameter that is a tempo value, and a parameter that is a number that specifies an accompaniment pattern. It consists of data for each parameter that specifies the contents of each element of the form.

  In the present embodiment, data that actually represents the tone color of the musical tone to be generated (tone color data) or data that actually represents the accompaniment pattern (accompaniment pattern data) is associated with each of the aforementioned numbers in the ROM 112 (stored in memory). Other storage areas in the unit 120 or the like may be stored.

  The timbre data is event data based on the MIDI standard, and the accompaniment pattern data basically includes event data based on the MIDI standard, and time data indicating the timing of supplying the event data to the sound source unit 141. Become.

  FIG. 7 shows how accompaniment pattern data is stored in the ROM 112.

  As shown in FIG. 7, accompaniment pattern data (accompaniment 1 to accompaniment 5) is recorded in the ROM 112 in association with each number (1 to 5) (the same is true for other data). The accompaniment pattern data includes a plurality of sets each including time data and event data.

  When the number (parameter) that specifies the timbre type of the current information stored in the current storage area is changed, the control unit 110 acquires the timbre change event data corresponding to the changed number from the ROM 112. Then, the acquired event data is supplied to the sound source unit 141. As a result, the timbre, which is one element of the tone generation form generated by the tone generator 141, is changed. The changed tone color is set in the sound source unit 141 (electronic musical instrument 100).

  Further, when the number (parameter) for specifying the type of the accompaniment pattern of the current information stored in the current storage area is changed, an area in which accompaniment pattern data corresponding to the changed number is stored in the ROM 112 Specify the address indicating. As a result, the changed accompaniment pattern is set in the electronic musical instrument 100.

  When the tempo value (parameter) in the current information stored in the current storage area is changed, only the tempo value in the current information is changed. As a result, the changed tempo is set in the electronic musical instrument 100.

  Thereafter, when the user plays the electronic musical instrument 100, a musical tone of the type specified by the parameter of the current information is generated, and when accompaniment is started in accordance with the performance, the parameter of the current information is set. The accompaniment pattern of the type specified in the above is read out at a speed based on the tempo specified by the parameter of the current information to generate an accompaniment sound. In this way, the electronic musical instrument 100 (the control unit 110) generates a musical sound from the sound generation unit 140 in the current setting state specified by the current information (parameter) set by the operation panel.

  Next, the operation of the electronic musical instrument 100 will be described.

  First, a musical sound generation mode setting process (a process for changing, saving, calling, etc. of currently set parameters) performed by the electronic musical instrument 100 will be described with reference to the flowchart of FIG. This process is performed, for example, when the user has operated the SW unit 132 of the operation unit 130 to select the setting mode of the musical sound generation mode. Further, this process ends when the user operates the SW unit 132 of the operation unit 130 to select another mode (for example, a performance mode).

  When the setting mode is selected, current information corresponding to the switch setting state of the SW unit 132 is recorded in the current storage area. The current information may have been changed by the user in the past and recorded in the current storage area as it is, or the control unit 110 may read out the current data from the ROM 112 as initial data at an appropriate timing. It may be recorded in a storage area.

  Furthermore, the electronic musical instrument 100 (control unit 110) displays a screen for setting a musical sound generation form on the display unit 150, and the user operates the operation unit 130 while viewing this screen.

  Further, during this process, when the user presses the keyboard 131 of the operation unit 130, the electronic musical instrument 100 is specified by the pitch corresponding to the key press and the current information parameter at that time. Sounds a musical tone. As a result, the user can confirm the tone generation mode set at that time.

  In the setting process of the musical sound generation mode, first, the control unit 110 determines whether or not a storage operation has been performed (step S101).

  For example, the SW unit 132 includes a plurality of storage switches corresponding to the plurality of registration storage areas. The plurality of registration storage areas and the plurality of storage switches have a one-to-one correspondence.

  When the user operates any one of the plurality of storage switches, the user instructs to store the current information and designates a storage destination. The registration storage area corresponding to the operated storage switch is the storage destination storage area. The SW unit 132 supplies the control unit 110 with a switch operation signal (a storage instruction signal) that specifies the operated storage switch (that is, the storage destination registration storage area).

  The control unit 110 determines that a storage operation has been performed when the storage instruction signal is supplied (step S101; YES). In this case, based on the save instruction signal, the control unit 110 records the current information as registration information in the registration destination storage area specified by the save instruction signal (step S105).

  As shown in FIG. 9, if the second registration storage area from the top is the storage destination, the control unit 110 records current information in the registration storage area. In this way, the control unit 110 saves the current information in the save destination designated by the save operation. In this way, the setting state of the SW unit 132, that is, the setting state for specifying the tone generation form is registered. The stored current information is handled as registration information thereafter. Note that even if the current information is stored as registration information, the current information recorded in the current storage area remains unchanged.

  If the registration information is stored in advance in the registration storage area where the current information is stored, the current information is overwritten, so the registration information recorded in advance is deleted.

  For example, when the storage instruction signal is not supplied, the control unit 110 determines that the storage operation is not performed (step S101; NO). In this case, the control unit 110 determines whether a call operation (call operation) has been performed (step S102).

  The SW unit 132 has a plurality of call switches corresponding to the plurality of registration storage areas. The plurality of registration storage areas and the plurality of storage switches have a one-to-one correspondence.

  When the user operates any of the plurality of call switches, the SW unit 132 switches the switch operation signal (that is, a registration storage area in which registration information to be called is recorded) to be operated (a registration operation area). A call instruction signal) is supplied to the control unit 110. As a result, the registration information recorded in the registration storage area corresponding to the operated call switch button is designated as the data to be called. Hereinafter, the designated registration information is referred to as designated registration information.

  For example, when the call instruction signal is supplied, the control unit 110 determines that a call operation has been performed (step S102; YES).

  In this case, the control unit 110 refers to the time measuring unit 160 and identifies the current time (step S106).

  Next, based on the current time specified in the process of step S106, the control unit 110 sets a parameter with an old change time among a plurality of parameters in the current information stored in the current storage area, The parameter corresponding to the old parameter (parameter for the same element) is overwritten (updated) (step S107).

  For example, the control unit 110 identifies and identifies the data of the modification time that is within a predetermined range from the current time identified in the process of step S106 among the modification time data corresponding to each parameter of the current information. Parameters other than the parameters associated with the change time data are updated to the parameters included in the designated registration information. As a result, the parameter with the old change time is updated to the parameter of the designated registration information for each element of the tone generation form. At this time, the control unit 110 updates the change time associated with the updated parameter to the current date and time. That is, the change time associated with the updated parameter is updated to the current time specified above.

  As shown in FIG. 10, if the second registration storage area from the top is designated, the control unit 110, based on the call instruction signal, designates the designated registration information recorded in the second registration storage area from the top. To the current storage area.

  At this time, as shown in FIG. 11, assuming that the current time specified in the process of step S106 is 11:16 on January 11, 2009, the control unit 110 falls within a predetermined range ( Here, for example, the parameter corresponding to the change time within the past 20 minutes) is specified.

  When the change time and the parameter of the current information are the data contents shown in FIG. 11, the control unit 110 corresponds to the change time within 20 minutes retroactively from 11:16 on January 11, 2009 of the current time. The parameter for the tone color and the parameter for the tempo value are specified. Then, the control unit 110 updates parameters other than these parameters (parameters for accompaniment patterns) to parameters for accompaniment patterns in the registration information (see FIG. 11).

  FIG. 12 shows an example of the data content of the updated current information in the case of FIG. As shown in FIG. 12, the accompaniment pattern parameter is updated in the current information, and the accompaniment pattern number is changed from No. 3 to No. 4 by this update. The change time corresponding to the parameter for the accompaniment pattern is updated to data representing 11:16 on January 11, 2009, which is the current time. The change time may not be updated. In this case, even if the user successively calls a plurality of types of registration information, the registration information parameter that was called one time before is updated to the newly called registration information parameter. The user can call up a plurality of types of registration information, and can compare a plurality of types of musical sound generation modes while leaving the recently changed parameters as they are.

  In this update, the registration information (designated registration information) recorded in the registration storage area is left as it is.

  For example, when the call instruction signal is not supplied, the control unit 110 determines that the call operation is not performed (step S102; NO). In this case, the control unit 110 determines whether a change operation has been performed (step S103). The change operation is an operation for changing the current setting state of the SW unit 132, that is, a parameter of current information.

  For example, the SW unit 132 includes one or more change switches for changing the parameters of the current information, and the user operates a desired change switch according to the parameter to be changed.

  The SW unit 132 generates a switch operation signal (change instruction signal) that identifies the operated change switch (that is, parameter change content) and supplies the switch operation signal to the control unit 110. When the change instruction signal is supplied, the control unit 110 determines that the change operation has been performed (step S104; YES), and the switch operation signal is determined based on the switch operation signal supplied from the SW unit 132. The content of the current information recorded in the current storage area, that is, the parameter is changed with the specified change content (step S105). As a result, the current musical sound generation mode is changed.

  When the current information has the contents shown in FIG. 13, for example, when the user performs a change operation for incrementing the number specifying the accompaniment pattern, the SW unit 132 sends a change instruction signal corresponding to this operation to the control unit 110. To supply. Upon receiving this change instruction signal, control unit 110 changes the number for specifying the accompaniment pattern of the current information from 3 to 4 in accordance with this change instruction signal. As a result, the designated accompaniment pattern is changed from an accompaniment pattern corresponding to number 3 to an accompaniment pattern corresponding to number 4. Then, along with this change, the control unit 110 records (updates) the current time (at the time of change) in association with this parameter as the change time (see FIG. 13).

  When the change instruction signal is not supplied (step S103; NO), the control unit 110 performs the process of step S105 or S107 and then returns to the process of step S101 again.

  In the present embodiment, the control unit 110 changes the parameter of the current information recorded in the current storage area in response to the change operation received by the operation unit 130 and changes the changed time to the changed parameter. Is recorded in the current storage area as the change time. In addition, in response to the call operation accepted by the operation unit 130, the control unit 110 changes a plurality of parameters included in the current information recorded in the current storage area within a predetermined range from the current time. A parameter other than the parameter associated with the time is updated to a parameter included in the registration information designated by the call operation (that is, the parameter that has been changed recently is maintained).

  The operation unit 130 of the electronic musical instrument 100 updates the call operation for maintaining the recently changed parameters as the call operation, and all the parameters of the current information to the registration information parameters without maintaining the recently changed parameters. The call operation to be performed may be received separately. In this case, the control unit 110 calls registration information according to each of the two types of calling operations. That is, according to each of the two types of call operations, the control unit 110 updates the other parameters to the registration information parameters while maintaining the recently changed parameters, or does not maintain the recently changed parameters. All information parameters may be updated to registration information parameters.

  The parameters of the current time (time when registration information is called) and the time within the predetermined range (change time) are parameters that the user has recently changed. There is a high possibility of maintaining. In the present embodiment, with the above configuration, when registration information is called, recently updated parameters (particularly, a plurality of parameters including the last changed parameter) are maintained. As a result, the tone generation form of the musical sound can be switched to another sound generation form while maintaining the parameters that the user wants to maintain with high accuracy. For this reason, according to the present embodiment, it is possible to change the musical sound generation mode according to the user's intention.

  Next, performance processing performed by the electronic musical instrument 100 when the user plays the electronic musical instrument 100 will be described with reference to the flowchart of FIG.

  This process is performed, for example, when the user selects the performance mode by operating the SW unit 132 of the operation unit 130. Further, this process ends when, for example, the user operates the SW unit 132 of the operation unit 130 to select another mode (for example, a setting mode for generating a musical sound).

  In the present embodiment, as shown in FIG. 3, the keyboard 131 of the operation unit 130 is divided into an accompaniment key range and a melody key range.

  In addition, the control unit 110 generates a clock serving as a basis for reading the accompaniment pattern from an operation clock used by the control unit 110 (for example, an operation clock generated by a clock generation unit (not shown) in the CPU 111). This read clock measures the elapsed performance time with the length of 1/96 note as the minimum cycle unit. The control unit 110 adjusts the length of the 1/96 note according to the tempo value specified by the current information.

  As described above, the accompaniment pattern data includes a plurality of sets of event data and time data (see the description of FIG. 7). Here, the event data is data that instructs the sound source unit 141 to generate / mute each chord (chord) component sound, drum sound, and bass sound. The time data is data for designating the timing for reading event data (that is, the timing for sounding). Both sets of data are associated with each other for each set.

  The set of event data and time data is recorded in the storage area of the ROM 112 in chronological order from the earliest timing of sound generation, and the control unit 110 performs event data and timing data in performance processing. Are sequentially read out one by one in time series order and are stored in the storage unit 120.

  First, the control unit 110 determines whether an instruction to start accompaniment has been given by the user (step S201). For example, the SW unit 132 has a start switch for starting accompaniment, and the user operates the start switch at a timing when the accompaniment is desired to be started. By this operation, the SW unit 132 supplies a switch operation signal (accompaniment start instruction signal) for specifying the operated start switch to the control unit 110. For example, when this accompaniment start instruction signal is supplied, the control unit 110 determines that an accompaniment start instruction has been issued (step S201; YES). In this case, the control unit 110 starts measuring the elapsed performance time and performs the process of step S202.

  On the other hand, for example, when the user does not press the start button and the accompaniment start instruction signal is not supplied, the control unit 110 determines that the accompaniment start instruction is not given (step S201; NO), and again. The process of step S201 is performed. In this manner, the control unit 110 waits for subsequent processing until an instruction to start accompaniment processing is given.

  Next, the control unit 110 determines whether or not the key pressing operation in the accompaniment key range of the keyboard 131 is a chord performance (step S202). That is, the control unit 110 determines whether the pitch designated by the key depression constitutes a chord.

  The controller 110 identifies the key pressed in the accompaniment key range based on the key pressing signal supplied from the keyboard 131. The depressed key can be identified by the key number included in the depressed signal, and the pitch of the depressed key is also identified by this identification (the same applies hereinafter). Here, when a plurality of keys are pressed and a combination of pitches forms a chord, it is determined that the key pressing operation is a chord play (step S202; YES). On the other hand, when the key pressing signal is not supplied, or when the key pressed based on the supplied key pressing signal does not constitute a code, this key pressing operation does not play the code. (Step S202; NO).

  The control unit 110 refers to a chord table associated with pitch combinations and chords (consisting of chord types and root sounds) stored in the ROM 112 or the like, and sounds of each of the plurality of keys depressed. It is determined whether or not the key pressing operation constitutes a code depending on whether or not there is a code that matches the high combination.

  When it is determined that the key pressing operation is not a chord play (step S202; NO), the control unit 110 determines whether it is the timing for reading the event data in the accompaniment pattern from the storage unit 120 (step S202). S203). This is determined based on whether or not the time indicated by the time data of the accompaniment pattern currently read to the storage unit 120 by the control unit 110 is the same as the current elapsed performance time measured by the control unit 110. . When both are the same, the control part 110 discriminate | determines that it is the read-out timing of the event paired with this time data (step S203; YES). If they are different, the control unit 110 determines that it is not the event readout timing (step S203; NO).

  When the control unit 110 determines that it is the event readout timing (step S203; YES), the control unit 110 supplies the event data paired with the time data from the storage unit 120 to the sound generation unit 140 ( Step S204). The sound generation unit 140 controls the sound generation / mute of accompaniment sounds (musical sounds) based on the contents of the event data. After supplying the event data to the sound generation unit 140, the control unit 110 reads the next set of time data and event data in time series order from the ROM 112 to the storage unit 120, and records them in the storage unit 120 before this. Instead of the time data and event data that have been set, the storage unit 120 holds the time data and event data that have already been read out to the storage unit 120.

  When it is determined that the key pressing operation is a chord play (step S202; YES), the control unit 110 determines whether it is a timing for reading event data in the accompaniment pattern (step S205). This process is the same as the process of step S203.

  When the control unit 110 determines that it is the read timing (step S205; YES), the control unit 110 reads the event data that is paired with the time data currently read to the storage unit 120. Then, the pitch indicated by the key number in the read event data (data contents of the event data) is changed based on the chord type of the chord played by the key pressing operation and the root sound (step S206). The control unit 110 supplies the changed event data to the sound generation unit 140 (step S207), and the sound generation unit 140 controls the sound generation / mute of the accompaniment sound based on the contents of the supplied event data. As in step S204, after supplying the changed event data to the sound generation unit 140, the control unit 110 reads the next set of time data and event data in time series order from the ROM 112 to the storage unit 120. Instead of the time data and event data previously recorded in the storage unit 120, the storage unit 120 holds the time data and event data that have already been read in the storage unit 120.

  When the control unit 110 determines that it is not the read timing after the process of step S204 or step S207 or the process of step S203 and step S205 (NO in each step), the control unit 110 applies the key belonging to the melody key range of the keyboard 131. It is determined whether or not a key operation (key depression or key release) has been performed (step S208).

  Based on whether or not a key pressing signal, which is a signal corresponding to a key pressing operation (note on) or a key releasing operation (note off) by the user, is supplied from the keyboard 131 as described above. It is determined whether an operation has been performed (step S208). If the key pressing signal is supplied, it is determined that a key operation has been performed (step S208; YES). Further, the control unit 110 determines that no key operation has been performed unless the key depression signal as described above is supplied (step S208; NO).

  If the controller 110 determines that a key depression or key release operation has been performed (step S208; YES), the event data based on the key number, note on or note off identification, and velocity signal included in the key depression signal. (Data necessary for generation is recorded in the ROM 112). Then, the control unit 110 supplies the generated event data to the sound generation unit 140, and the sound generation unit 140 controls the generation / mute of musical sound based on the contents of the supplied event data. When the event data indicates note-off, the sound generation unit 140 mutes the musical tone having the pitch indicated by the event data. On the other hand, when the event data indicates note-on, a musical tone having a pitch specified by the event data is generated at a volume corresponding to the velocity of the event data. At this time, the sound generation unit 140 uses the timbre specified by the number specifying the type of timbre in the current information stored in the current storage area, that is, the timbre currently set in the sound source unit 141. Pronounce. If there are a plurality of keys pressed, the control unit 110 performs the same process for each key in parallel.

  After the process of step S209, or when it is determined that the key pressing signal is not supplied from the keyboard 131 and the key pressing operation is not performed (step S208; NO), the control unit 110 again executes step S202. Return to processing.

  Through the processing as described above, the control unit 110 generates an accompaniment sound based on the tempo value and accompaniment pattern specified by the current information parameter, and when a key is pressed, the control unit 110 uses the current information parameter. A musical tone having a specified tone can be generated. In this way, the control unit 110 causes the sound generation unit to generate musical sounds according to a plurality of parameters included in the current information currently recorded in the current storage area.

  Note that the control program may be supplied to the electronic musical instrument 100 via a network. The control program is recorded on a portable storage medium (for example, CD-ROM (Compact Disk Read Only Memory), DVD-ROM (Digital Versatile Disk Read Only Memory)) and supplied (installed) to the electronic musical instrument 100. May be. In these cases, the ROM 112 is changed to a storage device (for example, a flash memory) in which data or the like can be written. Further, the control program may cause the CPU 111 to perform processing described later in cooperation with an OS (Operation System). In this case, the OS is also recorded in the ROM 112 or the like.

  The ROM 112, the flash memory, or a portable storage medium on which the control program is recorded becomes a storage medium that can be read by the electronic musical instrument 100 (computer) storing the program. Note that the control program may operate the electronic musical instrument 100 in which at least part of the functions is realized by a dedicated circuit. In other words, the electronic musical instrument 100 as a whole only needs to perform the processing described later, and the control program only needs to operate such a computer.

DESCRIPTION OF SYMBOLS 100 ... Electronic musical instrument, 110 ... Control part, 120 ... Memory | storage part, 130 ... Operation part, 140 ... Sound generation part, 150 ... Display part, 160 ... Timekeeping part

Claims (2)

A current storage area for storing current information including a plurality of parameters for specifying a current musical sound generation form and a parameter change time associated with each of the plurality of parameters, and a musical sound generation form registered in the past A storage unit having a registration storage area for storing registration information including a plurality of parameters;
An operation unit that receives a change operation for changing the parameter of the current information and a call operation that is an operation that specifies and calls the registration information;
In response to the change operation received by the operation unit, the parameter of the current information recorded in the current storage area is changed, and the changed time is associated with the changed parameter in the current storage area. Parameter changing means for recording the change time;
In response to the call operation received by the operation unit, among the plurality of parameters included in the current information recorded in the current storage area, corresponding to a change time that falls within a predetermined range from the current time Updating means for updating a parameter other than the attached parameter to a parameter included in the registration information designated by the call operation;
A musical sound generating means for generating a musical sound by a sound generation unit according to a plurality of parameters included in the current information currently recorded in the current storage area;
An electronic musical instrument characterized by comprising: A current storage area for storing current information including a plurality of parameters for specifying a current musical sound generation form and a parameter change time associated with each of the plurality of parameters, and a musical sound generation form registered in the past A storage unit having a registration storage area for storing registration information including a plurality of parameters;
A computer that controls a change operation that changes the parameter of the current information and a call operation that is a call operation that specifies and calls the registration information.
In response to the change operation received by the operation unit, the parameter of the current information recorded in the current storage area is changed, and the changed time is associated with the changed parameter in the current storage area. Parameter changing means for recording the change time,
In response to the call operation received by the operation unit, among the plurality of parameters included in the current information recorded in the current storage area, corresponding to a change time that falls within a predetermined range from the current time Updating means for updating a parameter other than the attached parameter to a parameter included in the registration information designated by the call operation;
A musical sound generating means for generating a musical sound by a sound generation unit according to a plurality of parameters included in the current information currently recorded in the current storage area;
A program characterized by functioning as

Images