JP5434445B2 - Music signal control apparatus and program - Google Patents

Description

  The present invention relates to a musical tone signal control apparatus and program for sequentially providing a plurality of acoustic effects to an original musical tone signal by causing a plurality of signal control sections to sequentially control the musical tone signal. In particular, the present invention relates to a technique for changing the order in which the effects are applied by changing the order of the signal control unit that passes the musical sound signal so that all of the set acoustic effects are appropriately reflected on the original musical sound signal.

  Conventionally, a musical sound that can give a complex effect to the original musical sound signal by combining a plurality of various acoustic effects (so-called effects) and applying them sequentially to the musical sound signal that is input at any time. Signal control devices and programs are known. A conventionally known apparatus is a so-called multi-effector including a digital signal control processing apparatus such as a DSP (digital signal processor), a discrete circuit, an integrated circuit, or a large-scale integrated circuit. The tone control signals are sequentially sent to multiple signal control units (for example, preamplifier, modulation effector, reverb effector, and power amplifier / compressor, etc.) that give each effect, and each signal control unit controls the signal. As a result, the musical tone signal in which a plurality of single-type effects are mixed can be finally obtained. An example of such a musical tone signal control device is the device described in Non-Patent Document 1 shown below.

  In the conventional apparatus as shown in Non-Patent Document 1, the type of effect (for example, Flanger or Phaser in a modulation effector) and the characteristic of the effect (how the effect is applied) for each signal control unit. ) Etc. are prepared, and the user operates the predetermined setting operator while watching the screen or the like to set these parameters, and finally the “sound” of the musical sound to be generated is set. Can be made. Further, in the prior art, the order (processing order) of the signal control units that pass the musical sound signals, that is, the order in which the effects are applied, is determined in advance, and the processing order is printed on the main body panel so that the user can always see it. It is specified in

“FX500B Owner's Manual”, Yamaha Corporation, Internet <http://www2.yamaha.co.jp/manual/pdf/pa/japan/signal/FX500BJ.pdf>

  By the way, depending on the combination of effect types set in each signal control unit by the user, the order of applying the effect by changing the order (processing order) of the signal control unit through which the musical sound signal passes appropriately is set by the user. A musical sound signal that appropriately reflects all of the effects obtained may not be finally obtained. For example, when the input / output characteristics change to either monaural or stereo depending on the type of effect, if a specific example is shown, for example, a preamplifier (mono input / stereo output) having a unique frequency characteristic and a stereo pan effect. When combining a phaser (mono input / monaural output) and when combining the preamplifier and flanger (stereo input / stereo output), in the former case, it is more effective to apply the preamplifier after applying the phaser first. In the latter case, it is more effective to put the preamplifier first and then apply the flanger. Therefore, it is necessary to change the order of the signal control unit for passing the musical sound signal each time.

  In consideration of the above points, in the conventional tone signal control device, only a part of the effectors determined in advance according to the dedicated switch operation (for example, the modulation effector and the reverb effector in the device described in Non-Patent Document 1) The order can be changed, or a combination of effectors prepared in advance (see the preset program in the apparatus described in Non-Patent Document 1) can be called as appropriate to change the order of a plurality of effectors at once. I can do it. However, even if this is done, the user must replace only some effectors or select a preset program after understanding that the effect is appropriately applied in consideration of the desired combination of effect types. Not only is it cumbersome for the user to perform these operations separately, but especially for beginners who do not have specialized knowledge, they do not know at all how to add more complex effects. There was a problem that it was very difficult to use. In addition, since there are a wide variety of combinations of effect types set in each signal control unit, it is not realistic to prepare a large number of preset programs in consideration of all combinations in advance.

  The present invention has been made in view of the above points, and it is easy for even a user who does not have special knowledge to easily reflect all the set sound effects appropriately on the original musical sound signal. It is an object of the present invention to provide a musical tone signal control apparatus and program which can change the order of applying effects by changing the order (processing order) of signal control units for passing musical tone signals.

  The musical tone signal control device according to the present invention is a stepwise combination of a plurality of signal control units respectively responsible for the processing steps in accordance with a series of signal control processing steps related to effect provision, according to a predetermined processing order in advance. A musical tone signal control device that sequentially applies a single type of effect to a musical tone signal based on signal control processing by each of the signal control units, and a plurality of signals that select any one of the plurality of signal control units A selection unit that is associated with each of the plurality of signal control units and arranged in a predetermined processing order in accordance with the series of signal control processing steps; With respect to any of the signal control units to be selected, instruction means for instructing change of the type of effect to be applied, and the change based on the type of effect instructed to change Change the series of signal control processing portion of the processing order to match the process comprising the indicated signal controller comprises a changing means for varying the predetermined processing order.

  According to the present invention, when an instruction to change the type of effect to be given with respect to at least one of a plurality of signal control units combined stepwise in accordance with a predetermined processing order in advance is given, Based on the type, a part of the processing order including at least the signal control unit instructed to change the type of the effect to be applied among the plurality of signal control units combined in advance is changed. That is, when the type of effect to be applied in a certain signal control unit among a plurality of signal control units is changed, depending on the type of effect after the change, it is combined in the preceding stage and the subsequent stage of the signal control unit Since all effects cannot be properly reflected in the musical tone signal unless the processing order is changed with other signal control units, the type of effect instructed to change when the type of effect to be applied is changed In some cases, the effects given by each of the plurality of signal control units are appropriately reflected in the musical tone signal by changing a part of the processing order according to the series of signal control processing steps to be different from the predetermined processing order. I was able to do that. As a result, even if the user does not have special knowledge, the user simply performs a simple operation such as instructing the type of the effect to be given to any signal control unit, and in the processing order that appropriately reflects all the effects. A combination of signal control units can be set.

  The present invention may be constructed and implemented not only as an apparatus invention but also as a method invention. Further, the present invention can be implemented in the form of a program of a processor such as a computer or a DSP, or can be implemented in the form of a storage medium storing such a program.

  According to this invention, when the type of effect to be applied is changed, the processing order of some of the plurality of signal control units is changed based on the type of effect instructed to change. Therefore, the user simply performs a simple operation such as instructing the type of effect to be given to an arbitrary signal control unit, and all the set effects are appropriately reflected on the original musical sound signal. There is an effect that the combination of the signal control units can be set in the processing order.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a hardware configuration block diagram showing an embodiment of an overall configuration of an electronic musical instrument to which a musical tone signal control device according to the present invention is applied. It is a conceptual diagram which shows the specific structural example of a piano element operation part. It is a conceptual diagram which shows the specific structural example of a parameter operation part. It is a flowchart which shows one Example of the "edit process" which edits the detailed parameter of a signal control part. It is a conceptual diagram which shows the specific change procedure at the time of changing the order of a signal control part.

  Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

  FIG. 1 is a hardware configuration block diagram showing an embodiment of the overall configuration of an electronic musical instrument to which a musical tone signal control apparatus according to the present invention is applied. The electronic musical instrument shown in this embodiment is controlled by a microcomputer including a microprocessor unit (CPU) 1, a read only memory (ROM) 2, and a random access memory (RAM) 3. The CPU 1 controls the operation of the entire electronic musical instrument. For this CPU 1, ROM 2, RAM 3, storage unit 4, piano element operation unit 5, display unit 6, setting operation detection unit 7, performance operation detection unit 8, sound source / effect unit 9 via data and address bus 1D. A MIDI interface (I / F) 10 and a communication interface (I / F) 11 are connected to each other. Further, the CPU 1 is connected to a timer 1A for measuring the interrupt time and various times in the timer interrupt process (interrupt process). For example, the timer 1A generates a clock pulse, and gives the generated clock pulse to the CPU 1 as a processing timing command or to the CPU 1 as an interrupt command. The CPU 1 executes various processes according to these instructions.

  The ROM 2 stores various control programs executed or referred to by the CPU 1 and various data such as bank data (not shown) provided / set in advance by a manufacturer. The RAM 3 is used as a working memory for temporarily storing various data generated when the CPU 1 executes a predetermined program, or as a memory for temporarily storing a currently executing program and related data. The A predetermined address area of the RAM 3 is assigned to each function, and is used as a register, a flag, a table, a temporary memory, or the like.

  The storage unit 4 stores various data such as bank data (not shown) created by the user, and various control programs executed by the CPU 1. When the control program is not stored in the ROM 2 described above, the control program is stored in the storage unit 4 and read into the RAM 3 to perform the same operation as when the control program is stored in the ROM 2. Can be made to CPU1. In this way, control programs can be easily added and upgraded. The storage unit 4 is not limited to a hard disk storage device (HD), and may be a storage device that uses various forms of storage media. Alternatively, a semiconductor memory such as a flash memory may be used.

  Here, the bank data includes a plurality of individual data sets that define different combinations of a number of parameters for creating musical tone signals (three as an example). The individual data set has a plurality of performance data (16 as an example) as a combination of parameters for creating different musical tone signals. Each piece of performance data is given as a parameter set when creating a musical sound signal, and the musical sound signal is characterized based on a number of parameters included in the performance data. That is, the performance data is a plurality of processing stages (signal control processes) for controlling the tone signal by combining a plurality of signal control units such as tone signal generation characteristics, tone signal amplification characteristics, and tone signal effect imparting characteristics. Piano element parameter information for controlling a signal control unit that executes signal control corresponding to each characteristic, for each of a series of processing series (in this embodiment, not limited to two series, of course, only two series), Preamplifier parameter information, modulation effect parameter information, power amplifier / comp element parameter information, reverb parameter information for controlling a signal control unit that performs signal control common to each processing sequence, multi-equalizer (MEQ) parameter information, etc. Of various parameter information.

  The piano element operation unit 5 detects an operation for each of a plurality of signal control unit instruction operators 5B (also called piano element switches, etc.) arranged in advance on the main body panel, and provides switch information and the like according to the operation state. The data is output to the CPU 1 via the address bus 1D. Further, a signal control display unit 5A composed of a light emitting element such as an LED is disposed in the vicinity of each signal control unit indicating operator 5B, and the signal control display unit 5A can be controlled to be turned on / off / flashing. It is also like. Detailed description of the piano element operation unit 5 including the signal control display unit 5A and the signal control unit instruction operation unit 5B will be described later (see FIG. 2).

  The display unit 6 is a display composed of, for example, a liquid crystal display panel (LCD) or a CRT disposed on the panel, and presents a plurality of parameters or displays the control state of the CPU 1. The display unit 6 may be, for example, a display device of relatively low resolution / display capability that can only display information about several tens of characters at a time in each of the upper and lower stages. The detailed description of the display contents on the display unit 6 will be described later (see FIG. 3).

  The setting operation detection unit 7 is a rotation operation provided in the vicinity of the display unit 6 constituting an operation unit other than the signal control unit instruction operation unit 5B described above, for example, a parameter operation unit unit (see FIG. 3) described later. An operation to each of a plurality of pushable knobs is detected, and switch information or the like corresponding to the operation state is output to the CPU 1 via the data and address bus 1D. Of course, in addition to the above, various operators such as a numeric keypad for inputting numeric data and a keyboard for inputting character data for selecting, setting, and controlling pitches, timbres, effects, and the like may be included.

  The performance operation detection unit 8 detects and outputs a press and release of a performance operator (not shown) such as a keyboard provided with a plurality of keys for selecting a pitch of a musical tone signal to be generated. It is what produces. In response to the user's operation of the performance operator, the tone generator / effect unit 9 is instructed to generate a musical sound signal. Of course, it is not limited to generating a musical tone signal in response to the operation of the performance operator by the user himself, but a musical tone signal is generated based on, for example, MIDI data acquired from an external MIDI device 11A such as a sequencer via the MIDI interface 10. You may be able to. Note that the electronic musical instrument is not limited to a keyboard instrument, and may be any type of instrument such as a stringed instrument or a wind instrument.

  The tone generator / effect unit 9 can simultaneously generate a plurality of musical tone signals, and inputs performance information given via the data and the address bus 1D according to the key pressing operation of the performance operator, and the performance information. A musical tone signal is generated according to the musical tone signal generation characteristics based on The tone signal generated by the sound source / effect unit 9 is sounded from a sound system 9A including an amplifier, a speaker, and the like after being subjected to stepwise signal control processing (details will be described later) according to signal amplification characteristics and effect imparting characteristics. The Any conventional configuration may be used for the configuration of the sound source / effect unit 9 and the sound system 9A. For example, the sound source / effect unit 9 may adopt any of various tone synthesis methods such as FM, PCM, physical model, formant synthesis, etc., may be configured with dedicated hardware including a waveform memory, or by DSP You may comprise by software processing (simulation program etc.).

  The MIDI interface (I / F) 10 inputs performance information in MIDI format (so-called MIDI data) from an external MIDI device 10A or the like to the electronic musical instrument, or transmits performance information in MIDI format from the electronic musical instrument to the MIDI device 10A. It is an interface to output to etc. The MIDI device 10A may be any device that generates MIDI-format performance information.

  The communication interface (I / F) 11 is an interface for transmitting and receiving a control program, various data, and the like via the communication network X between the electronic musical instrument and the external server device 11A. The communication interface 11 may be, for example, a LAN, the Internet, a telephone line, or the like, and may include both wired and wireless ones.

  Next, specific configuration examples and operation modes of the piano element operation unit and the parameter operation unit configured on the main body panel of the electronic musical instrument will be described with reference to FIGS. FIG. 2 is a conceptual diagram illustrating a specific configuration example of the piano element operation unit. As shown in FIG. 2, the piano element operation unit 5 includes a plurality of signal control unit instruction operators 5B (switches), and a signal control display unit 5A including light emitting elements such as LEDs arranged in the vicinity thereof. Consists of. However, here, an example has been shown in which signal control is performed separately in two upper and lower stages, and two musical sound signals processed in the respective series can be mixed and sounded.

  Each operation element 5B included in the piano element operation part 5 has a plurality of signal control parts (for example, a function of generating a tone signal and applying a single kind of effect to the generated tone signal) (for example, , Piano element, preamplifier, modulation effector, power amplifier / compressor, reverb effector, multi-equalizer, common effector, etc.) are associated in advance. For this reason, in the vicinity of each operation element 5B, the assigned signal control unit is provided so that the user can immediately confirm the type of the signal control unit assigned to each operation element 5B on the panel. A print display indicating the type of the image is printed in advance. In the musical tone signal control apparatus according to the present invention, the order of the signal control sections that pass the musical tone signals, that is, the order of applying the effects is determined in advance, and indicates the processing order (that is, the flow of musical tone signals). Along with the arrow P1, the print display is printed in the sequence of processing.

  For example, in the embodiment shown in FIG. 2, “Piano Element” is printed on the operation element 5B printed as “PIANO” in order from the left, “Preamplifier” is printed on the operation element 5B printed as “PRE-AMPLIFIER”, “MODULATION EFFECT” is associated with “MODULATION EFFECT” printed on the operator 5B, and “POWER-AMPLIFIER COMPRESSOR” is printed on the operator 5B associated with “POWER-AMPLIFIER COMPRESSOR”. Other than the above, the operation element 5B printed as “REVERB” and the operation element 5B printed as “MEQ” are associated with “reverb effector” and “multi-equalizer”. The operator 5B printed as “COMMON” is associated with a common parameter for performing overall control such as tuning, not for controlling a specific signal control unit. The correspondence between the operation element 5B and each effector is fixed, and the user cannot arbitrarily change it. That is, visually, user recognition regarding the processing order is always performed in the order of printing.

  When an arbitrary operation member 5B of the piano element operation unit 5 associated with each signal control unit is operated in a predetermined operation mode, the validity / invalidity of the signal control unit associated with the operation unit 5B is determined. Can be switched. For example, when the user presses the operator 5B printed as “PIANO” at the upper left corner for a short time, the signal control unit (piano element) for generating a musical tone signal is effectively switched to generate a musical tone signal. On the other hand, when the operator 5B in the valid state is pressed again for a short time, the signal control unit (piano element) for generating the musical tone signal is disabled and no musical tone signal is generated. Then, when the other operator 5B, for example, each operator 5B printed and displayed as “PRE-AMPLIFIER”, “MODULATION EFFECT”, “POWER-AMPLIFIER COMPRESSOR” is shortly pressed, the corresponding signal is received. While the control unit is switched to be effective and signal control processing such as modulation is performed on the musical tone signal, when the operation element 5B in the enabled state is pressed again for a short time, the respective signal control unit is disabled. The tone signal is passed through to the next processing stage without being subjected to signal control processing on the tone signal after switching. The signal control display unit 5A (LED or the like) arranged in the vicinity of the operated operator 5B is turned on when the signal control unit is enabled, and is turned off when the signal control unit is disabled. Is done.

  In addition, in the case where an arbitrary operation element 5B of the piano element operation element 5 associated with each signal control unit is pressed longer than a predetermined time unlike the operation mode (short pressing), a pre-selected The detailed contents of the parameter information regarding the signal control unit associated with the operated operator 5B based on the performance data are displayed on the parameter operator unit shown in FIG. For example, when the user presses and holds down the operator 5B printed and displayed as “MODULATION EFFECT” at the upper left corner, the processing type related to the modulation system effector and a plurality of parameters (up to 5 in this example) are parameter operations. It is displayed in the child part.

  Here, the parameter operator section will be described with reference to FIG. FIG. 4 is a conceptual diagram illustrating a specific configuration example of the parameter operator unit. The parameter operation unit is composed of a display unit 6 composed of a display device such as an LCD, and a plurality of knobs (setting operation units) 7A. In the display unit 6, the detailed contents of the parameter information related to the signal control unit associated with the arbitrary operation unit 5B of the piano element operation unit pressed for a predetermined time or longer are associated with the knob 7A. Is displayed. Here, a detailed parameter display when the operation element 5B displaying “MODULATION EFFECT” is operated is shown as an example.

  Specifically, regarding the processing type and the plurality of parameters related to the modulation effector in order from the left, the respective parameter names are displayed on the upper part of the display unit 6 and the parameter values and the like are displayed on the lower part. In the illustrated example, the processing type “Md Effect” relating to the modulation effector is “Flanger”, the parameter value “0.683 Hz” of the “Speed” parameter, the parameter value “7”, “ It can be understood that the parameter value “60” of the “Depth” parameter, the parameter value “58” of the “Feedback” parameter, and the parameter value “64” of the “Mix” parameter. In this display state, the user can arbitrarily set each detailed parameter by operating a plurality of knobs 7A arranged below the display unit 6 corresponding to each parameter display.

  As described above, when an arbitrary operation member 5B of the piano element operation unit 5 is pushed once, each signal control unit can be set to enable / disable reversal, and when long-pressed (for example, 1 second or more), details on the signal control unit are obtained. It is now possible to enter edit mode for editing parameters. That is, the setting of whether each signal control unit is valid / invalid and the transition to detailed parameter editing of each signal control unit can be performed separately according to the operation mode of the same operator 5B. When the mode is shifted to the edit mode, the blinking mode of the LED is changed so that the user can know whether the signal control unit is in a valid state (normal LED lighting state) or in an invalid state (normal LED off state). Specifically, the blinking interval is changed. For example, blinking at a long time interval indicates that the signal control unit is in the valid state and the edit mode is entered, and blinking at a short time interval indicates that the signal control unit is in the invalid state and the edit mode is entered. It is good to control. That is, the LED is always lit when the signal control unit is enabled and not selected for editing, and the LED is off when the signal control unit is disabled and not selected for editing. The LED flashes at a long time interval when the signal control unit is enabled and selected for editing, and the LED flashes at a short time interval when the signal control unit is disabled and selected for editing To do.

Depending on the type (processing type) of the signal control unit, the number of parameters constituting the parameter information may be less than five. In that case, the display locations corresponding to some of the knobs 7A in the display unit 6 are blank (no display).
Depending on the type of the signal control unit, the processing type may not be changed. For example, since the processing type of the preamplifier is uniquely determined by the processing type of the piano element, the processing type cannot be changed in such a case (the display corresponding to the knob 7A to which the processing type is assigned in the display in the display unit 6). Will be blank).

  As described above, the musical tone signal control apparatus according to the present invention includes a plurality of stages of signal control units that take charge of the processing steps in accordance with a series of processing steps for performing signal control processing. In this way, various effects are imparted to the original musical tone signal step by step by the signal control processing executed in step (b). The user can select one of a plurality of different processing types for realizing signal control processing corresponding to each characteristic in each signal control unit, and adjust the control contents in the selected processing type. A desired musical tone signal can be created by appropriately changing detailed parameters in order to determine the characteristics of the signal control unit.

  As described above, the processing type of the preamplifier is uniquely determined according to the processing type of the designated piano element. For example, when a piano model is selected from among several piano element processing types, a preamplifier that simulates the original electric piano is selected. The preamplifier that imitates an electric piano not only imitates the characteristics of an amplifier circuit unique to an electric piano model, but also imitates a circuit that gives the effect of periodically changing the left and right volume to a musical sound signal ( So-called tremolo effect). Here, a general preamplifier performs signal control on a musical sound signal input in monaural and outputs it in stereo. On the other hand, there are two types of modulation-type effectors: one that adds a predetermined effect to a stereo input musical sound signal and outputs it in stereo, and one that applies a predetermined effect to a monaural input musical sound signal and outputs it in monaural. . Specifically, in the case of adding an effect (so-called “Flanger”) in which a delayed sound obtained by modulating the delay time on the left and right sides with the opposite phase is output to the musical sound signal (so-called “Flanger”), stereo input / stereo output is performed. When adding the effect of changing the tone continuously by mixing the original sound and the sound whose phase is changed (so-called “Small Phaser”) to the musical sound signal, monaural input / monaural output (as another type, phaser) (Phaser), but some have stereo input / stereo output).

  By the way, when using, for example, a preamplifier and a modulation effector as described above, the processing order of the preamplifier and the modulation effector is changed depending on the type of effect (processing type) to be added by the modulation effector. Better. For example, when combining a modulation effector that is set to add “Small Phaser” (mono input / mono output) as an effect type to the preamplifier, and “Flanger” (stereo input / stereo output) as an effect type. When combining modulation-type effectors that are set to be added, in the former case, it is more effective to apply the “Small Phaser” to the musical sound signal first and then apply the preamp later (that is, the modulation system). In the latter case, it is more effective to apply the pre-amplifier to the musical sound signal first and then apply "Flanger" later (that is, the signal is processed in the order of the pre-amplifier-modulation effector). Control processing). Therefore, in the present invention, in view of this point, by automatically changing the order (processing order) of the signal control unit that passes the musical tone signal in accordance with the change of the processing type setting in each signal control unit, The order in which the effects are applied is changed.

  Next, changing the order of the plurality of signal control units that pass the above-described musical tone signal will be described with reference to FIGS. However, here, in order to make the description easy to understand, a case where the order of the preamplifier and the modulation effector is changed will be described as an example. FIG. 4 is a flowchart showing an embodiment of “editing processing” for editing detailed parameters of the signal control unit. The processing is started in response to any one of the signal control unit instruction operators 5B of the piano element operator unit 5 being operated for a long time to shift to the edit mode.

  In step S1, it is determined whether or not the operator 5B associated with the “modulation effector” has been operated. If it is determined that the other operation element 5B has been operated without operating the operation element 5B associated with the “modulation effector” (NO in step S1), the operation element 5B is associated with the operated operation element 5B. For the signal control unit (other than the modulation effector), the processing type and parameter display / change processing is executed (step S10). On the other hand, if it is determined that the operator 5B associated with the “modulation effector” has been operated (YES in step S1), the detailed parameters are set as shown in FIG. This is displayed on the display unit 6 (step S2). In step S3, the sound source / effect unit 9 is instructed to change the parameter in accordance with the operation of the parameter setting knob 7A, and is reflected on the display.

  In step S4, it is determined whether or not the processing type of the modulation effector has been changed by operating the knob 7A. If it is determined that the process type has not been changed (NO in step S4), the process jumps to step S9. If it is determined that the processing type has been changed (YES in step S4), an algorithm corresponding to the changed processing type is applied to the sound source / effect unit 9 (step S5). In step S6, when an algorithm corresponding to the changed processing type is applied to the sound source / effect unit 9, input to other signal control units (other than the modulation effector) before and after the modulation effector is performed. It is determined whether or not the output characteristics are accompanied by a change. For example, if the processing type is changed between a group such as "Flanger, Max100, Touch Wah, Pedal Wah, Chorus, D Chorus, 816 Chorus, Symphonic" and a group such as "Small Phaser, Max90" It is determined that the characteristic is accompanied by a change. In other words, since the input / output characteristics are determined for each processing type, depending on the combination of processing types of each signal control unit, the input / output characteristics of the modulation effector and the input / output of other signal control units in the previous and subsequent stages It may be determined whether the characteristics match in monochrome or stereo. Needless to say, the other signal control units in the preceding stage and the subsequent stage are specified in consideration of the validity / invalidity of each signal control unit.

  If it is determined that the input / output characteristics are accompanied by a change (YES in step S6), the order of the signal control unit including the modulation effector is changed from the current state (step S7). Detailed description thereof will be described later (see FIG. 5). On the other hand, when it is determined that the input / output characteristics are not changed (NO in step S6), the order of the signal control units including the modulation effector is not changed as it is (step S8). In step S9, it is determined whether or not an operation that does not target the modulation effector is performed, that is, whether or not the operator 5B associated with the signal control unit other than the modulation effector is operated for a long time. To do. If it is determined that an operation that does not set the modulation effector as a target for detailed editing has not been performed (NO in step S9), the process returns to step S3 to repeat the processes in steps S3 to S9. On the other hand, if it is determined that an operation that does not target the modulation effector as a detailed editing target has been performed (YES in step S9), the process ends.

  Here, a specific change procedure will be described with reference to FIG. 5 regarding the change of the order of the signal control unit that passes the musical sound signal realized in accordance with the execution of the processing of FIG. 4 described above. FIG. 5 is a conceptual diagram showing a specific change procedure when changing the order of the signal control units. In FIG. 5, as a standard processing order determined in advance, piano type E1, preamplifier E2, modulation system effector E3, power amplifier / compressor E4 in order of each series, and after processing in each series In the figure, a musical sound signal mixed is controlled in the order of a reverb effector E5 and a master equalizer E6. Note that symbols A to C and ac in the figure represent input / output paths of signals through which a musical sound signal passes.

  As described above, the general preamplifier E2 performs signal control on the musical sound signal input to the monaural input A from the signal control unit (piano type) at the previous stage and then outputs the stereo output B. It is initially set to stereo input B / stereo output C according to the output characteristics of E2. Here, when “Flanger” is set as the processing type of the modulation effector E3, since “Flanger” has a standard stereo input / stereo output, the modulation effector E3 outputs a musical sound signal stereo-output B from the preamplifier E2. Can be stereo-input B as it is to control the signal and then stereo-output C (shown by a solid line in the figure). That is, when “Flanger” is set as the processing type of the modulation effector E3, the order of the preamplifier E2 and the modulation effector E3 need not be changed (see step S8 in FIG. 4).

  On the other hand, when “Small Phaser” is set as the processing type of the modulation effector E3, “Small Phaser” is standard in monaural input / monaural output, but the modulation effector E3 is stereo output B from the preamplifier E2. If the musical sound signal is directly input to the stereo input B and the signal is controlled, the optimum effect is not applied, which is inconvenient. Therefore, it is necessary to newly set the signal paths A to C and change the order (processing order) in which the preamplifier E2 and the modulation effector E3 pass the musical sound signals. To set new signal paths a to c, the monaural output A of the piano type E1 is changed to the monaural input a of the modulation effector E3, and the stereo output C of the modulation effector E3 is changed to the stereo input c of the preamplifier E2. The stereo output B of the preamplifier E2 is changed to the stereo input b of the power amplifier / compressor E4. Accordingly, when “Small Phaser” is set as the processing type of the modulation effector E3, the order of the preamplifier E2 and the modulation effector E3 is changed by newly setting the signal paths ac. 4 step S7).

  When "Flanger" is set again from the state where "Small Phaser" is set as the processing type of the modulation effector E3, it is necessary to return the signal paths a to c to the standard signal paths A to C. . To return to the signal paths A to C, the monaural output a of the piano type E1 is changed to the monaural input A of the preamplifier E2, and the stereo output b of the preamplifier E2 is changed to the stereo input B of the modulation effector E3. The stereo output c of E3 is changed to the stereo input C of the power amplifier / compressor E4. In this way, when the processing type of the modulation effector is changed from “Small Phaser” to “Flanger”, the signal paths a to c are returned to the standard signal paths A to C to thereby change the preamplifier E2 and the modulation system. The order with the effector E3 is changed.

  As described above, in the musical tone signal control device according to the present invention, a change in the type of effect to be imparted with respect to at least one of a plurality of signal control units that are combined stepwise in accordance with a predetermined processing order in advance. , Based on the type of effect instructed to change, a part of the plurality of signal control units combined in advance includes at least a signal control unit instructed to change the type of effect to be applied The processing order was changed. That is, depending on the type of effect instructed to change, a new processing order different from a predetermined processing order in accordance with a series of signal control processing steps is set. As a result, even if the user does not have special knowledge, the user simply performs a simple operation such as instructing the type of the effect to be given to any signal control unit, and in the processing order that appropriately reflects all the effects. Signal control units can be combined.

  When the sound source / effect unit 9 is configured by a DSP, it can be realized by replacing an algorithm (for example, a microcode) that executes signal control corresponding to each signal control unit when the order of the signal control units is changed. Good. That is, in the musical tone signal control apparatus according to the present embodiment, the algorithm for realizing the signal control processing corresponding to each signal control unit is uniquely defined for each type, and the DSP for realizing the algorithm when the processing type is switched. (For piano types, switching of PCM waveforms read from the waveform memory is also included), and the parameter types for controlling them are also switched. Examples of the algorithm include an algorithm of a simulation program that realizes a signal control process similar to that of a conventionally known analog effector circuit or amplifier circuit that is a combination of a large number of electric elements by simulation.

  In the above-described embodiments, the case where the order of the preamplifier and the modulation effector is changed has been described as an example. However, the present invention is not limited to this, and the preamplifier Needless to say, the order of the signal control unit for passing the tone signal other than the modulation effector may be changed. In addition, the order of the signal control unit that passes the musical sound signal is automatically changed according to the change of the processing type in each signal control unit, but this is not limiting, and depending on whether the signal control unit is enabled / disabled It is also possible to determine the input / output characteristics of each effective signal control unit and automatically change the order of the signal control unit that passes the musical sound signal in accordance with the determination.

The input / output characteristics of the signal control unit are not limited to those described above. For example, there is a stereo input / monaural output signal control unit (so-called ring modulator), and the order of the signal control units may be changed. .
Even when connection is possible, for example, by connecting signal control units for stereo input / stereo output, the order of the signal control unit for passing the musical sound signal can be changed in consideration of the effect of the effect in advance. You may be able to do it. For example, it is better that the distortion effect that distorts the sound can be applied before the delay or reverb effect.

DESCRIPTION OF SYMBOLS 1 ... CPU, 2 ... ROM, 3 ... RAM, 4 ... Storage part, 5 ... Piano element operation part, 5A ... Signal control display part (LED etc.), 5B ... Signal control part instruction | indication operation element, 6 ... Display part ( LCD, etc.), 7 ... Setting operation detection unit, 8 ... Performance operation detection unit, 9 ... Sound source / effect unit (including DSP), 9A ... Sound system, 10 ... MIDI interface, 10A ... MIDI device, 11 ... Communication interface, 11A ... Server device, 1D ... Data and address bus, X ... Communication network, E1 ... Piano type, E2 ... Preamplifier, E3 ... Modulation effector, E4 ... Power amplifier / compressor, E5 ... Reverb effector, E6 ... Master equalizer

Claims (3)

In accordance with a series of signal control processing steps related to effect provision, a plurality of signal control units respectively responsible for the processing steps are combined in advance according to a predetermined processing order in advance, and the signal control processing by each signal control unit A musical sound signal control device for sequentially applying a single type of effect to a musical sound signal based on each,
A plurality of selection means for selecting any one of the plurality of signal control units, the selection unit being associated with each of the plurality of signal control units, and a predetermined number according to the series of signal control processing steps; Are arranged in the order of processing,
Regarding any signal control unit selected in accordance with the operation of the selection unit, an instruction unit for instructing a change in the type of effect to be applied;
Based on the type of effect instructed to change, a change that changes a part of the processing order according to the series of signal control processing steps including the signal control unit instructed to change, to be different from the predetermined processing order A musical sound signal control device comprising means.   The changing means has an input / output characteristic of a musical sound signal between a signal control unit instructed to change the type of effect to be applied and another signal control unit combined in a preceding stage and a subsequent stage of the signal control unit. By determining whether the effect type is different from that before the change of the effect type, and when the input / output characteristics are different from those before the change of the effect type, by resetting the input / output signal path according to the type of effect instructed to change 2. The musical tone signal control apparatus according to claim 1, wherein a part of the processing order in accordance with the series of signal control processing steps is changed. A plurality of signal control procedures each responsible for the processing steps in accordance with a series of signal control processing steps related to effect provision are combined in stages according to a predetermined processing order in advance, and the signal control processing according to each signal control procedure. A computer-executable program for sequentially applying a single type of effect to a musical sound signal based on the computer program,
A plurality of selection means for selecting one of the plurality of signal control units, which is associated with each of the plurality of signal control units and arranged in a predetermined processing order in accordance with the series of signal control processing steps. A procedure for instructing a change in the type of effect to be given with respect to any signal control unit selected in accordance with the operation of
Regarding at least one of the plurality of signal control units, a procedure for instructing a change in the type of effect to be applied;
A procedure for changing a part of the processing order in accordance with the series of signal control processing steps including the signal control unit instructed to change the difference from the predetermined processing order based on the type of the effect instructed to change. A program that executes at least

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