JP2006154297A - Electronic musical instrument and program for realizing control method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic musical instrument permitting trial-listening to musical sound of edited musical sound parameters while editing the musical sound parameters using both hands and the program for realizing the control method. <P>SOLUTION: When a mode 1 is selected and a foot pedal-on event is outputted from a foot pedal, pedal-on data are outputted to a CPU (step S3). The CPU performs foot pedal original musical sound control to musical sound being uttered. Meanwhile, when a mode 2 is selected and a foot pedal-on event is outputted, key-on information stored in a register 5 are read out and outputted to the CPU (step S5). The CPU produces musical sound data based on key code data and velocity data contained in this key-on information, and outputs the data to a sound source device. From the sound source device, a musical sound signal is produced and outputted based on the supplied musical sound data, timbre data set by a player, and an effect parameter. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electronic musical instrument that includes at least one foot pedal and can set musical tone parameters including tone color data and effect parameters, and a program for realizing a control method thereof.

  2. Description of the Related Art An electronic musical instrument that has at least one foot pedal and can set musical tone parameters including tone color data and effect parameters is conventionally known.

  As such an electronic musical instrument, there is one having a keyboard and a tone color editing function for editing a tone color of a musical tone that is generated when a performer presses the keyboard. Using this electronic musical instrument, when the performer edits the tone of a musical tone, every time he edits the tone to see how the edited tone will be heard, i.e. to audition, I try to make the sound sound.

  The higher-order models of electronic keyboard instruments have three types of foot pedals: a sustain pedal, a sostenuto pedal, and a soft pedal. The sustain pedal gives the effect of stretching the sound you play while you are stepping on it, and the sostenuto pedal gives you the effect of holding only the sound that sounds when you step on it. The soft pedal is for generating a weak sound. Some electronic musical instruments have one or two foot pedals, and three are not necessarily provided.

In addition to the normal function of the foot pedal, that is, the function to control the reverberation and volume of the same tone, the electronic musical instrument has the ability to add another tone to the tone of the currently-sounding tone. (For example, refer to Patent Document 1).
JP 2002-351468 A

  However, the conventional electronic musical instrument described above is inconvenient because it is impossible to press the keyboard while editing the tone using both hands, so it is not possible to audition the tone of the tone during editing. It was. There is a foot that is vacant in other parts of the body, but since the foot pedal has only the functions described above, it could not be used for listening.

  The present invention has been made paying attention to this point, and realizes an electronic musical instrument and a control method therefor that enable the user to test the musical tone of the edited musical tone parameter while editing the musical tone parameter using both hands. It aims at providing the program for.

  In order to achieve the above object, an electronic musical instrument according to claim 1 is characterized in that at least one foot pedal, a plurality of operators for setting musical tone parameters including timbre data and effect parameters, Selecting means for selecting one of a first mode for enabling the original tone control of the foot pedal and a second mode for disabling the original tone control of the foot pedal when the pedal is depressed; Storage means for storing note-on event information for generating a musical tone, musical tone generation means for generating a musical sound based on note-on event information and a musical sound parameter set by the performer using the plurality of operators If the foot pedal is depressed when the second mode is selected by the selection means, the memory Control means for reading the note-on event information stored in the stage and controlling the tone generation means so as to generate a tone based on the read note-on event information and the set tone parameter. It is characterized by that.

  Preferably, the note-on event information includes first note-on event information including one note-on event that generates a single note, and second note-on event including a plurality of note-on events that sequentially generate a plurality of musical sounds. The control means controls the music sound generating means so as to generate music based on the note-on event information selected by the operator.

  In order to achieve the above object, the program according to claim 3 can be realized by the same technical idea as claim 1.

  According to the first or third aspect of the invention, when the player depresses the foot pedal, the foot pedal is in a state where the second mode for invalidating the original tone control of the foot pedal is selected. When depressed, the stored note-on event information is read from the storage means storing the note-on event information for generating a predetermined musical tone, and the read note-on event information and performance Musical sounds are generated based on the musical sound parameters set by the operator using a plurality of controls, so it is possible to audition the musical sounds of the set musical sound parameters while setting the musical sound parameters using both hands. .

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a block diagram showing a schematic configuration of an electronic musical instrument according to an embodiment of the present invention.

  As shown in the figure, the electronic musical instrument of the present embodiment includes a CPU 1 that controls the entire apparatus, a keyboard 2 that outputs a key-on / off event in response to a player's key pressing or key release operation, and various settings. For example, an operation panel 3 provided with a liquid crystal display (LCD) and a light emitting diode (LED), and a foot depending on the player's stepping on or releasing operation. Foot pedal 4 for outputting a pedal on / off event, register 5 for storing key-on information for generating a single tone and sequence information for sequentially generating a plurality of musical sounds, and a musical tone signal generated and set by the CPU 1 And a sound source device 6 that generates a musical sound signal based on the information that is the basis of the above.

  The CPU 1 is based on, for example, a control program stored in a ROM (not shown), in the illustrated example, a key assignment processing routine 11, a tone generation event processing routine 12, a panel event processing routine 13, and a foot pedal event processing routine 14, respectively. , Key assignment processing, sound generation event processing, panel event processing, and foot pedal event processing.

  Specifically, the key on / off event output from the keyboard 2 includes key on / off data, key code data, and velocity data. However, since the velocity data is not normally used in the processing for the key-off event, the key-off event may be composed of key-off data and key code data.

  Specifically, the foot pedal on / off event output from the foot pedal 4 is configured by pedal on / off data and an operation amount (depression amount). However, in this embodiment, since the operation amount is not used, the foot pedal on / off event may be configured by pedal on / off data. In the present embodiment, only one foot pedal is provided. However, a plurality of foot pedals may be provided. In this case, data that indicates which foot pedal is operated (for example, each foot pedal). The number when the pedal is assigned) may be included in the foot pedal on / off event.

  In the present embodiment, the operation panel 3 is used for editing timbre data, effect parameters, and the like. For example, a list of tone color data and effect parameters that can be set is displayed on the LCD, and one selected by the player (operator) is transmitted to the CPU 1. Further, in the present embodiment, the operation mode of the foot pedal 4 is configured so that any one of three types of modes 1 to 3 can be selected. This mode can also be selected from the operation panel 3. Details of each operation mode will be described later.

  The register 5 stores key-on information and sequence information as described above. The key-on information is composed of key code data and velocity data, and the sequence information is a plurality of sets of key-on event data and duration data indicating the reproduction timing and reproduction length of the key-on event data. It is composed of a set of sequences (see FIG. 3). The key-on information and sequence information may be created and set using the operation panel 3. In addition, key-on information and sequence information may not be created by the player (operator) themselves, but may be used as they are created by a third party as they are, or may be edited and used. You may do it.

  A control process executed by the electronic musical instrument configured as described above will be described in detail with reference to FIGS.

The electronic musical instrument according to the present embodiment is characterized in that the content of the musical tone control process by the foot pedal on / off event output from the foot pedal 4 is switched according to the selected operation mode. That is, the content of the musical tone control process is
Mode 1: Mode for controlling the original tone of the foot pedal 4 Mode 2: Mode for controlling the tone by associating the foot pedal 4 with one key on the keyboard 2 Mode 3: Instructing the foot pedal 4 to start automatic performance Of the modes in which musical tone control is performed in association with a start switch (not shown), the mode is switched according to one of the selected modes.

  First, the musical tone control process when mode 1 is selected will be described.

  When the performer presses one key on the keyboard 2 in the state where the mode 1 is selected, the keyboard 2 receives from the key code data corresponding to the pitch of the key, velocity data corresponding to the key press, and Key-on event data consisting of key-on data is output. In response to this, the CPU 1 assigns sound generation to an empty channel among the plurality of sound generation channels by the key assignment processing 11. Here, an empty channel is detected as follows. That is, when the sound generation channel is muted and released by the sound generation event process 12, the channel number of the open channel is transmitted to the key assignment process 11. Therefore, in the key assignment process 11, the transmitted channel is transmitted. For example, the contents of a channel register (not shown) are rewritten based on the number. For example, the channel register is a register having bits corresponding to the sound generation channel. When the corresponding bit is “1”, the sound generation channel is “sounding”, and when the corresponding bit is “0”, The pronunciation channel is configured to be “open”. Specifically, when it is transmitted that the channel number of the open channel is, for example, 3 channels, the content of, for example, the 3rd bit of the channel register is rewritten to “0”. Therefore, if a bit in which “0” is set is detected in the channel register, a channel having a channel number corresponding to the detected bit number is an empty channel.

  In this way, the key assignment process 11 knows which channel is currently free, so that channel number is attached to the key-on event data output from the keyboard 2 to the sounding event process 12. introduce. When there are a plurality of empty channels, for example, the sound generation may be preferentially assigned from the channel with the smallest number.

  In the sound event processing 12, the transmitted key-on event data with the empty channel number and the timbre data and effect parameters selected by the player using the operation panel 3 and set by the panel event processing 13 are used as the sound source device 6. Send to. The sound source device 6 stores the transmitted data in a corresponding register, generates a musical sound signal based on this data, and transmits it to a sound system (not shown).

  When the performer depresses the foot pedal 4 in the state where the musical tone is generated in this way, a foot pedal on event is output from the foot pedal 4. In response to this, the CPU 1 transmits the pedal-on data during the foot pedal-on event to the sounding event process 12 by the foot pedal event process 14 (step S3 in FIG. 2). In response to this, the sounding event process 12 sends data to the tone generator device 6 that performs the original musical tone control process assigned to the foot pedal 4, for example, the process of extending the currently sounding musical sound.

  Then, when the performer releases the depression of the foot pedal 4, a foot pedal off event is output from the foot pedal 4. In response to this, the CPU 1 transmits the pedal-off data during the foot pedal off event to the sounding event process 12 by the foot pedal event process 14 (step S9). In response to this, the sound generation event process 12 sends data for canceling the original tone control process of the foot pedal 4 to the tone generator device 6.

  On the other hand, when the key released by the performer is released, the keyboard 2 outputs key code data corresponding to the pitch of the key, velocity data corresponding to the key release, and key-off event data including key-off data. The In response to this, the CPU 1 performs a mute process for the musical sound currently being generated by the key assign process 11. Specifically, the channel number corresponding to the released key is attached to the key-off event data output from the keyboard 2 and transmitted to the sound generation event process 12. In the sound event processing 12, the transmitted key-off event data with the channel number is transmitted to the sound source device 6. The tone generator device 6 stores the transmitted data in a corresponding register, and attenuates the musical sound signal based on this data. After a time when the level of the musical sound signal is predicted to fall within a predetermined threshold due to the attenuation, the sound generation event process 12 sends the channel to the key assignment process 11 as an open channel.

  Next, the tone control process when mode 2 is selected will be described.

  Even when the mode 2 is selected, the performance operation performed by the performer using the keyboard 2, that is, the key pressing or key release operation is effective, and the key pressing operation can be performed as described above in the musical tone control process of the mode 1. In response, a musical tone signal is generated from the sound source device 6, and the generated musical tone signal is attenuated in response to a key release operation. However, the situation of the performer assumed when mode 2 is selected is that both hands of the performer are operating the controls of the operation panel 3, and even one hand presses and releases the keyboard 2. Is not possible. Therefore, when the mode 2 is selected, only the musical tone control process corresponding to the performance operation using the foot pedal 4 is considered without considering the musical tone control process corresponding to the key pressing operation of the keyboard 2 by the player's hand. explain.

  When the performer steps on the foot pedal 4, a foot pedal on event is output from the foot pedal 4. In response to this, the CPU 1 reads the key-on information stored in the register 5 by the foot pedal event processing 14 and transmits it to the foot pedal event processing 14. In response to this, the foot pedal event process 14 transmits the key code data and velocity data included in the transmitted key-on information and the generated key-on data to the key assignment process 11 (step S5 in FIG. 2). Since the subsequent processing is the same as the processing performed by the key assign processing 11 after the key-on event data is output from the keyboard 2 when the mode 1 is selected, the description thereof is omitted. That is, when the mode 2 is selected, the stepping operation on the foot pedal 4 corresponds to the key pressing operation on a certain key on the keyboard 2 when the mode 1 is selected.

  On the other hand, when the performer releases the depression of the foot pedal 4, a foot pedal off event is output from the foot pedal 4. In response to this, the CPU 1 reads the key-on information stored in the register 5 by the foot pedal event processing 14 and transmits it to the foot pedal event processing 14. In response to this, the foot pedal event process 14 transmits the key code data and velocity data included in the transmitted key-on information and the generated key-off data to the key assignment process 11 (step S11). Since the subsequent processing is the same as the processing performed by the key assign processing 11 after the key-off event data is output from the keyboard 2 when the mode 1 is selected, the description thereof is omitted. That is, the operation of releasing the stepping operation on the foot pedal 4 when the mode 2 is selected corresponds to the key release operation for a certain key on the keyboard 2 when the mode 1 is selected.

  In this way, when mode 2 is selected, a musical tone signal having a predetermined pitch and volume can be generated simply by depressing the foot pedal 4 even if the player's hands are occupied by the operator of the operation panel 3. Especially when editing timbre data and effect parameters, even when both hands are occupied, it is possible to immediately audition how the musical sound generated after editing will be heard. it can.

  Next, the tone control process when mode 3 is selected will be described.

  The musical tone control process when mode 3 is selected is a sequence of a plurality of musical sounds instead of a single tone based on the sequence information stored in the register 5 with respect to the musical tone control process when mode 2 is selected. Since only the difference is generated, this difference will be described.

  FIG. 3 is a diagram showing an example ((a)) of sequence information stored in the register 5 and a plurality of musical sounds ((b)) generated based on the sequence information.

  When the performer steps on the foot pedal 4, a foot pedal on event is output from the foot pedal 4. In response to this, the CPU 1 first reads the key-on event 1 from the sequence information stored in the register 5 and transmits it to the foot pedal event process 14 by the foot pedal event process 14 as shown in FIG. . In response to this, the foot pedal event process 14 transmits key-on data, key code data, and velocity data included in the transmitted key-on event 1 to the key assignment process 11 (step S6 in FIG. 2). Since the subsequent processing is the same as the processing performed by the key assign processing 11 after the key-on event data is output from the keyboard 2 when the mode 1 is selected, the description thereof is omitted.

  Next, duration 1 is read from the sequence information. As shown in FIG. 3B, duration 1 is data defining the time from the start of generation of a musical sound based on key-on event 1 until the musical sound is muted and the next key-on event 2 is started. Specifically, it is numerical information. This numerical information is counted down by a software counter every predetermined time (this time is normally counted by timer interrupt processing (not shown)), and when it becomes “0”, a key-on event A process for muting the musical sound generated based on 1 is performed. Specifically, the key code data and velocity data included in the key-on event 1 and the generated key-off data are transmitted to the key assignment process 11 by the foot pedal event process 14. Subsequently, the next key-on event 2 is read from the sequence information and transmitted to the foot pedal event process 14. Hereinafter, the above processing is repeated until end data indicating the end of the key-on information is read, such as duration 2 and key-on event 3.

  In this way, when mode 3 is selected, even if the performer's hands are blocked by the operator of the operation panel 3, a plurality of musical sounds can be generated in sequence by simply depressing the foot pedal 4. In particular, even when tone data and effect parameters are being edited and both hands are occupied, it is possible to immediately audition how the musical sound generated after editing is heard.

  Note that the tone control process when mode 3 is selected is configured such that when the foot pedal 4 is depressed once, the tone generation continues until all the key-on information data stored in the register 5 is read out. However, the present invention is not limited to this, and the generation of musical sounds may be stopped when the foot pedal 4 is released.

  Further, a storage medium in which a program code of software for realizing the functions of the above-described embodiments is recorded is supplied to a system or apparatus, and a computer (or CPU or MPU) of the system or apparatus is stored in the storage medium It goes without saying that the object of the present invention can also be achieved by reading and executing the code.

  In this case, the program code itself read from the storage medium realizes the novel function of the present invention, and the storage medium storing the program code constitutes the present invention.

  As a storage medium for supplying the program code, for example, a flexible disk, hard disk, magneto-optical disk, CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD + RW, magnetic A tape, a non-volatile memory card, a ROM, or the like can be used. Further, the program code may be supplied from a server computer via a communication network.

  Further, by executing the program code read out by the computer, not only the functions of the above-described embodiments are realized, but also the OS running on the computer based on the instruction of the program code performs the actual processing. It goes without saying that a case where the functions of the above-described embodiment are realized by performing part or all of the above and the processing thereof is included.

  Further, after the program code read from the storage medium is written into a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer, the function expansion is performed based on the instruction of the program code. It goes without saying that the CPU or the like provided in the board or the function expansion unit performs part or all of the actual processing and the functions of the above-described embodiments are realized by the processing.

It is a block diagram which shows schematic structure of the electronic musical instrument which concerns on one embodiment of this invention. It is a flowchart which shows the procedure of the foot pedal event process which the electronic musical instrument of FIG. 1, especially CPU performs. It is a figure which shows an example of the sequence information memorize | stored in the register | resistor in FIG. 1, and the mode of the several musical sound produced | generated based on this sequence information.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... CPU (selection means, control means), 3 ... Operation panel (a plurality of operation elements, selection means), 4 ... Foot pedal, 5 ... Register (storage means), 6 ... Sound source device (musical sound generation means)

Claims (3)

At least one foot pedal,
A plurality of controls for setting musical tone parameters including timbre data and effect parameters;
When the performer depresses the foot pedal, either the first mode for enabling the original tone control of the foot pedal or the second mode for disabling the original tone control of the foot pedal is selected. Selection means to
Storage means for storing note-on event information for generating a predetermined musical sound;
Musical tone generating means for generating musical tone based on note-on event information and musical tone parameters set by the performer using the plurality of controls;
If the foot pedal is depressed when the second mode is selected by the selection means, the note-on event information stored in the storage means is read out, and the read-out event-on information information And an electronic musical instrument comprising: control means for controlling the musical sound generating means so as to generate musical sounds based on the set musical sound parameters. The note-on event information includes first note-on event information including one note-on event that generates a single note, and second note-on event information including a plurality of note-on events that sequentially generate a plurality of musical sounds. Become
The electronic musical instrument according to claim 1, wherein the control means controls the musical sound generating means so as to generate a musical sound based on note-on event information selected by an operator. A program for causing a computer to execute a method for controlling an electronic musical instrument comprising at least one foot pedal and a plurality of operators for setting musical tone parameters including tone color data and effect parameters,
The control method is:
When the performer depresses the foot pedal, either the first mode for enabling the original tone control of the foot pedal or the second mode for disabling the original tone control of the foot pedal is selected. A selection step to
A tone generation step for generating a tone based on note-on event information and a tone parameter set by the performer using the plurality of controls;
When the second mode is selected by the selecting step, when the foot pedal is depressed, note-on information stored in a storage means for storing note-on event information for generating a predetermined musical sound is stored. And a control step for controlling the tone generation step so as to generate a tone based on the read note-on event information and the set tone parameter.

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