JP4244874B2 - Electronic percussion instrument, impact sound generation program - Google Patents

Description

  The present invention relates to an electronic percussion instrument, and more particularly to an electronic percussion instrument that optimizes the generation of a percussion sound during a roll performance.

Conventionally, various techniques have been proposed for more appropriately producing musical sounds produced electronically by electronic percussion instruments.
Patent Document 1 discloses an electronic percussion instrument that automatically adds a musical sound effect for enhancing performance expression. According to this document, when the electronic percussion instrument detects that the sound generation instruction information corresponding to the strike on the pad is continuously given within a predetermined time, the electronic percussion instrument generates a musical sound signal generated corresponding to the sound generation instruction information. For example, a predetermined musical sound effect such as panning is added.
Patent Document 2 discloses a technique for optimizing the generation of musical sounds when an electronic percussion instrument is played repeatedly. The electronic percussion instrument described in this document stores a pair of waveform data for normal performance and waveform data for continuous performance for each pad. And when a hit is given to a certain pad, the time interval between hits given before that hit is detected, and if the detected time interval is shorter than a predetermined value, the waveform data for continuous hit performance is used. The sound signal of the hitting sound is created.
Japanese Patent Laid-Open No. 5-80754 Japanese Patent Laid-Open No. 5-100680

  By the way, a performance technique realized by repeatedly hitting a percussion instrument is divided into a flam playing technique and a roll playing technique. In the flam playing method, a short stroke of the left and right sticks is given one by one, whereas in the roll playing method, such a short stroke is given continuously for a certain time. When natural percussion instruments are played in accordance with these two performance methods, there is a clear difference in timbre in the percussion sound during both performance methods. Therefore, in order to bring the percussion sound electronically generated by an electronic percussion instrument closer to the percussion sound that a natural percussion instrument acoustically produces, it is possible to accurately identify the roll performance method and the flam performance method and generate a unique musical sound signal for each performance method. It is desirable to do.

However, the technique described in Patent Document 2 merely uses the waveform data properly depending on whether or not the time interval between two consecutive hits is shorter than a predetermined value. For this reason, it was not possible to distinguish between a roll playing technique and a flam playing technique that desirably uses waveform data different from the roll playing technique.
The present invention has been devised under such a background, and it is an object of the present invention to provide an electronic percussion instrument that accurately identifies a percussion method and electronically creates a percussion sound closer to a natural percussion instrument.

This onset Ming, the waveform data of impact sound to be output when roll performance, and waveform data storage means for storing the waveform data of impact sound to be output when non-roll performance, and parameter storing means for storing the parameters , A performance operator having a striking surface, a striking mode detection means for detecting a striking mode of the striking given to the striking surface of the performance manipulator, and outputting a parameter representing the detected striking mode, and the striking mode detection means Storage control means for storing the parameters output from the parameter storage means in accordance with the output order, and when a new parameter is stored in the parameter storage means, at least two stored before the new parameter Depending on the contents of the above parameters and the contents of the new parameters, either one of the two waveform data in the waveform data storage means A waveform data specifying means for specifying who, said read the specified waveform data from the waveform data storage means, and a musical tone signal output means for outputting a musical tone signal generated based on the read waveform data is the detection An electronic percussion instrument having a hitting strength, a displacement amount of a hitting position on the hitting surface, a combination of the hitting strength and the displacement amount, or a combination of these and a hitting time interval is provided.

Further, the present invention provides a waveform data storage means for storing the waveform data of the hitting sound to be output during the roll performance and the waveform data of the hitting sound to be output during the non-roll performance, and a parameter storage means for storing the parameters. And a performance operator having a striking surface, a striking mode detecting means for detecting a striking mode of the striking given to the striking surface of the performance manipulator, and outputting a parameter representing the detected striking mode, and the striking mode detection Storage control means for storing the parameters output from the means in the parameter storage means according to the output order; and when a new parameter is stored in the parameter storage means, at least 2 stored before the new parameter Depending on the content of one or more parameters and the content of the new parameter, one of the two waveform data in the waveform data storage means Waveform data specifying means for specifying one of them, and a tone signal output means for reading the specified waveform data from the waveform data storage means and outputting a tone signal generated based on the read waveform data, When a hit on the hitting surface is given, the hitting mode detecting means detects a time interval between the hit and the previous hit as a hitting mode, and outputs a parameter representing the detected time interval, and the waveform data The specifying means is such that an average value of a time interval represented by a new parameter stored in the parameter storage means and a time interval represented by at least two parameters stored before the new parameter is smaller than a predetermined value. The electronic data for specifying the waveform data of the hitting sound to be output during the roll performance, out of both waveform data of the waveform data storage means To provide a musical instrument.

Further, the present invention provides a waveform data storage means for storing the waveform data of the hitting sound to be output during the roll performance and the waveform data of the hitting sound to be output during the non-roll performance, and a parameter storage means for storing the parameters. A hitting mode detecting means for detecting a hitting mode of the hit given to the hitting surface of the performance operator, and outputting a parameter representing the detected hitting mode, and the hitting mode detection Storage control means for storing the parameters output from the means in the parameter storage means according to the output order; and when a new parameter is stored in the parameter storage means, at least 2 stored before the new parameter Depending on the content of one or more parameters and the content of the new parameter, one of the two waveform data in the waveform data storage means Waveform data specifying means for specifying one of them, and a tone signal output means for reading the specified waveform data from the waveform data storage means and outputting a tone signal generated based on the read waveform data, When a hit on the hitting surface is given, the hitting mode detecting means detects the hitting strength of the hit as the hitting mode, and outputs a parameter representing the detected hitting strength. When the impact strength represented by the new parameter stored in the storage means and the impact strength represented by at least two parameters stored before the new parameter are both smaller than a predetermined value, the waveform data storage means An electronic percussion instrument that specifies the waveform data of the percussion sound to be output during the roll performance is provided.

Further, in this aspect, when the hitting state is given to the hitting surface, the hitting mode detecting means detects the time interval between the hitting and the previous hitting as the hitting mode together with the hitting strength and detects the hitting mode. The waveform data specifying means outputs at least two parameters stored before the new time parameter and the time interval indicated by the new parameter stored in the parameter storage means. When the time interval represented by the above parameters is shorter than a predetermined value and the impact strength represented by the new parameter is smaller than the predetermined value, the waveform data of the impact sound to be output during the roll performance is specified. May be.

Further, the present invention provides a waveform data storage means for storing the waveform data of the hitting sound to be output during the roll performance and the waveform data of the hitting sound to be output during the non-roll performance, and a parameter storage means for storing the parameters. A hitting mode detecting means for detecting a hitting mode of the hit given to the hitting surface of the performance operator, and outputting a parameter representing the detected hitting mode, and the hitting mode detection Storage control means for storing the parameters output from the means in the parameter storage means according to the output order; and when a new parameter is stored in the parameter storage means, at least 2 stored before the new parameter Depending on the content of one or more parameters and the content of the new parameter, one of the two waveform data in the waveform data storage means Waveform data specifying means for specifying one of them, and a tone signal output means for reading the specified waveform data from the waveform data storage means and outputting a tone signal generated based on the read waveform data, When the hit on the hitting surface is given, the hitting mode detecting means detects the amount of displacement between the position where the hit is given and the position where the previous hit is given as the hitting mode, and the detected position A parameter representing a displacement amount is output, and the waveform data specifying means includes a position displacement amount represented by a new parameter stored in the parameter storage means and at least two parameters stored before the new parameter. When the position displacement amount represented by is smaller than a predetermined value, the waveform data storage means outputs both of the waveform data during the roll performance. To provide an electronic percussion instrument that identifies the waveform data that should impact sound.

Further, the present invention provides a waveform data storage means for storing the waveform data of the hitting sound to be output during the roll performance and the waveform data of the hitting sound to be output during the non-roll performance, and a parameter storage means for storing the parameters. A hitting mode detecting means for detecting a hitting mode of the hit given to the hitting surface of the performance operator, and outputting a parameter representing the detected hitting mode, and the hitting mode detection Storage control means for storing the parameters output from the means in the parameter storage means according to the output order; and when a new parameter is stored in the parameter storage means, at least 2 stored before the new parameter When the content of one or more parameters and the content of the new parameter satisfy a predetermined condition, the waveform data storage means Among the waveform data, specify the waveform data of the striking sound to be output during the roll performance, and specify the waveform data of the percussion sound to be output during the non-roll performance if the predetermined condition is not satisfied There is provided an electronic percussion instrument comprising a specifying means and a tone signal output means for reading out the specified waveform data from the waveform data storage means and outputting a tone signal generated based on the read waveform data.

Further, in this aspect, when the hitting mode detecting means is given a hit on the hitting surface, the hitting mode detecting means detects a time interval between the hit and the previous hit as a hitting mode, and a parameter representing the detected time interval. The predetermined condition is that the time interval represented by the new parameter stored in the parameter storage means and the time interval represented by at least two parameters stored before the new parameter are either May be shorter than a predetermined value.

Further, the present invention provides a waveform data storage means for storing the waveform data of the hitting sound to be output during the roll performance and the waveform data of the hitting sound to be output during the non-roll performance, and a parameter storage means for storing the parameters. And a mode of hitting given to the percussion instrument, wherein the hitting strength, the amount of displacement of the hitting position on the hitting surface, the combination of the hitting strength and the amount of displacement, or the combination of these and the hitting time interval A storage control function for storing parameters input from the input means in the parameter storage means in accordance with the input order, in a computer comprising input means for inputting parameters representing the output and output means for outputting musical tone signals; When a new parameter is stored in the storage means, at least 2 stored before the new parameter is stored. In accordance with the contents of the above parameters and the contents of the new parameters, the waveform data specifying function for specifying one of the two waveform data of the waveform data storage means, and the specified waveform data as the waveform There is provided a program for realizing an output function for reading out from a data storage means and outputting a musical tone signal generated based on the read waveform data via the output means.

  According to the present invention, the hitting mode of the hit given to the hitting surface is detected, and parameters representing the detected hitting mode are sequentially accumulated. Each time a new hit is given, a plurality of parameters accumulated before the hit are referred to, and the presence / absence of a roll performance is determined according to the reference result. This makes it possible to discriminate between the roll playing method and the flam playing method extremely precisely.

(First embodiment)
A first embodiment of the present invention will be described.
FIG. 1 is a block diagram showing a hardware configuration of the electronic percussion instrument according to the present embodiment. As shown in the figure, this electronic percussion instrument includes a drum pad 1, an analog / digital (hereinafter referred to as "A / D") conversion unit 2, a program memory 3, a work memory 4, a CPU 5, a waveform memory 6, and sound generation control. Unit 7 and audio output unit 8.

  The drum pad 1 functions as a performance operator of the electronic percussion instrument. As shown in FIG. 2, the drum hitting surface portion 10 is provided on the surface of the metal base portion 9 and the vibration sensor 11 is provided on the back surface. Are arranged respectively. When a hitting member 12 such as a stick is hit with respect to the hitting surface portion 10, vibration due to the hitting is transmitted to the vibration sensor 11 via the base portion 9, and the hitting strength to the hitting surface portion 10 from the vibration sensor 11. An analog vibration detection signal having a level corresponding to is output.

The vibration detection signal output from the vibration sensor 11 of the drum pad 1 is converted into digital data by the A / D converter 2 and then supplied to the CPU 5.
The waveform memory 6 stores two types of waveform data having different frequency characteristics. One waveform data is waveform data prepared for a roll performance, and the other waveform data is waveform data prepared for a non-roll performance. Both waveform data are associated with a waveform code for identifying each.

The program memory 3 stores in advance a unique program for causing the CPU 5 to execute operations characteristic of the present embodiment. When the CPU 5 executes the program stored in the program memory 3 while using the work memory 4, both functional modules of the striking state detection unit and the waveform data specifying unit are logically realized.
Explaining the role of both of these functional modules, first, the striking mode detector detects a striking time interval, which is one of the elements characterizing the striking mode of the drum pad 1, from the vibration detection signal, and represents the detected striking time interval. Output parameters.
The detection of the hitting time interval is performed as follows. When a vibration detection signal is supplied from the drum pad 1, first, the striking mode detection unit generates timing data representing the timing at which the signal is supplied. The work memory 4 has a timing data holding area for temporarily storing timing data, and the generated timing data is stored in this holding area until new timing data is subsequently generated. . When the hitting mode detection unit generates new timing data, it detects the hitting time interval by taking the difference between the new timing data and the timing data stored in the timing data holding area. Then, after outputting a parameter representing the detected hitting time interval, the timing data stored in the timing data holding area until then is replaced with new timing data.

  The work memory 4 has a buffer area for accumulating parameters, and the parameters output from the striking mode detector are sequentially stored in this buffer area. When a new parameter is stored in the buffer area, the waveform data specifying unit reads out from the waveform memory 6 according to the content of the new parameter and the contents of a plurality of parameters previously stored in the buffer area. Specify the waveform data to be processed. Then, the waveform code of the specified waveform data is output to the sound generation control unit 7 together with velocity data generated based on the vibration detection signal and pad-on data instructing sound generation corresponding to the hit of the drum pad 1.

  When the waveform code, velocity data, and pad-on data set is supplied from the waveform data specifying unit, the sound generation control unit 7 reads the waveform data corresponding to the waveform code from the waveform memory 6. A musical tone signal is generated by adding envelope waveform data corresponding to the velocity data to the read waveform data. The sound output unit 8 emits a musical sound synthesized according to the musical sound signal.

  FIG. 3 is a flowchart showing a characteristic operation of the present embodiment. In this flowchart, Tdiff (i) is a character string indicating a specific parameter representing the hitting time interval, and a numerical value i input as a variable of Tdiff corresponds to an order representing the newness of each parameter. For example, a parameter obtained from the vibration detection signal of the latest hit is represented as a parameter Tdiff (0), and a parameter obtained from the vibration detection signal of the immediately previous hit is represented as a parameter Tdiff (1). In this flowchart, the constant n is a preset parameter reference count and must be a positive integer of 3 or more.

In step 100 shown in this flowchart, first, a new parameter Tdiff (0) is acquired from the striking state detection unit. In the following step 110, the waveform data specifying unit specifies the parameters Tdiff (1) to Tdiff (n-1) to be referenced from the buffer area of the work memory 4, and then proceeds to step 120, where the parameter Tdiff (0) Is stored in the buffer area.
In step 130, “0” is input to the variable i. In the following step 140, it is determined whether or not the numerical value input to the variable i is smaller than the constant n.

  When the determination result in step 140 is “YES”, the process proceeds to step 150, in which whether or not the hitting time interval represented by the parameter Tdiff (i) is shorter than a predetermined time interval Tthr set as a threshold value in advance. To be judged. If the determination result in this step is “YES”, the process proceeds to step 160, the value of the variable i is incremented by 1, and then the process returns to step 140. On the other hand, if the determination result in step 150 is “NO”, the process proceeds to step 170 to perform the processing for the non-roll playing style. That is, the waveform code of the waveform data for the non-roll performance method is output together with the velocity data and the pad on data. Then, in step 180, waveform data for non-roll performance is read from the waveform memory 6, and a musical sound signal is generated based on the waveform data.

  When the determination result of step 140 is “NO”, the process proceeds to step 190 to perform the process for the roll performance. That is, the waveform code of the waveform data for the roll performance is output together with the velocity data and the pad on data. Then, in step 200, waveform data for the roll performance is read from the waveform memory 6, and a musical sound signal is generated based on the waveform data.

  In the present embodiment described above, parameters representing the hitting time intervals of hits given to the drum pad 1 are sequentially stored in the buffer area. When the drum pad 1 is hit, at least three or more n parameters including new parameters obtained from the hit are referred to sequentially, and the hit time interval represented by all the referenced parameters. Only when the duration is shorter than the predetermined time, the musical tone signal for the roll performance is generated. Therefore, it is avoided that even a flam playing method in which a short stroke is given to each of the left and right shots is judged to be a roll playing method, and a hit by the roll playing method can be detected very precisely.

(Second Embodiment)
A second embodiment of the present invention will be described. In the first embodiment, the presence / absence of a roll performance is determined by individually referring to the parameters stored in the buffer area. However, in this embodiment, the average of hitting time intervals represented by a plurality of parameters in the buffer area is determined. Based on the value, the presence / absence of a roll performance is determined.
Since the hardware configuration of the electronic percussion instrument according to the present embodiment is the same as that of the first embodiment, the description thereof will be omitted.

この図に示す手順では、図３に示したステップ１３０乃至ステップ１６０の処理が、ステップ１３１及びステップ１５１の処理と入れ替わっている。即ち、ステップ１２０にて新たなパラメータTdiff（０）がバッファ領域に記憶されると、ステップ１３１に進み、数１に示した関数により打撃時間間隔の加算平均値Taverが算出される。続くステップ１５１では、加算平均値Taverが表す時間間隔が、予め閾値として設定された時間間隔Tthrよりも短いか否かが判断される。このステップにおける判断結果が「ＮＯ」であれば、非ロール奏法時の処理が行われ（ステップ１７０及びステップ１８０）、「ＹＥＳ」であればロール奏法時の処理が行われる（ステップ１９０及びステップ２００）。 FIG. 4 is a flowchart showing a characteristic operation of the present embodiment. Also in this flowchart, as in FIG. 3, Tdiff (i) is a character string indicating a specific parameter, and the numerical value i input as a variable of Tdiff corresponds to the order representing the newness of each parameter. Yes. The constant n is a preset parameter reference count, and must be a positive integer of 3 or more. Further, Taver is an average value of hitting time intervals represented by n parameters Tdiff, and is calculated by the following function.

In the procedure shown in this figure, the processing of step 130 to step 160 shown in FIG. 3 is replaced with the processing of step 131 and step 151. That is, when a new parameter Tdiff (0) is stored in the buffer area in step 120, the process proceeds to step 131, and the addition average value Taver of the striking time interval is calculated by the function shown in equation (1). In the following step 151, it is determined whether or not the time interval represented by the addition average value Taver is shorter than the time interval Tthr set as a threshold value in advance. If the determination result in this step is “NO”, processing for non-roll performance is performed (step 170 and step 180), and if “YES”, processing for roll performance is performed (step 190 and step 200). ).

  In the embodiment described above, an average value of hitting time intervals represented by at least three n or more parameters is obtained, and when the hitting time interval represented by the obtained adding average value is shorter than a predetermined time interval, the roll A musical tone signal for rendition is generated. Even with such a technique, it is possible to detect the hitting by the roll playing technique very precisely.

(Third embodiment)
In both the above-described embodiments, the presence / absence of the roll performance method is determined based on the hitting time interval, which is one of the elements characterizing the hitting mode. On the other hand, in the present embodiment, the presence / absence of the roll performance method is determined based on the striking strength which is one of other elements characterizing the striking mode.
The hardware configuration of the electronic percussion instrument according to this embodiment is the same as that of the above embodiment. In the present embodiment, when the vibration detection signal is supplied from the drum pad 1, the striking mode detection unit realized by the CPU 5 detects the striking strength from the vibration detection signal, and sets a parameter representing the detected striking strength. It is designed to output.

FIG. 5 is a flowchart showing a characteristic operation of the present embodiment.
In this flowchart, Velo (i) is a character string indicating a specific parameter representing the impact strength, and a numerical value i input as a Velo variable corresponds to an order representing the newness of each parameter. The constant n is a preset parameter reference count, and must be a positive integer of 3 or more.

The processing of Step 200 to Step 240 shown in this figure is the same as Step 100 to Step 140 of FIG. 3 except that the parameter to be handled is the parameter Velo (i) representing the impact strength.
When the determination result in step 240 is “YES”, the process proceeds to step 250, in which it is determined whether or not the impact strength represented by the parameter Velo (i) is smaller than a predetermined impact strength Vthr set as a threshold value in advance. The If the determination result in this step is “YES”, the process proceeds to step 260, the value of the variable i is incremented by 1, and then the process returns to step 240. On the other hand, if the determination result in step 250 is “NO”, processing in the non-roll performance style is performed (steps 270 to 280).
When the determination result in step 240 is “NO”, processing during the roll performance is performed (steps 290 to 300).

  In the embodiment described above, parameters representing the impact strength are sequentially stored in the buffer area. When a hit is given to the drum pad 1, at least three n parameters including new parameters obtained from the hit are referred to sequentially, and the hit strength represented by all the referenced parameters is determined. Only when the strength is lower than the predetermined striking strength, a tone signal for the roll performance is generated. Even with such a technique, it is possible to detect the hitting by the roll playing technique very precisely.

(Fourth embodiment)
In each of the above-described embodiments, the presence / absence of the roll performance method is determined based on the striking time interval or striking strength which is one of the elements characterizing the striking mode. On the other hand, in this embodiment, the presence / absence of the roll performance method is determined based on the displacement amount of the striking position, which is yet another element that characterizes the striking mode.
The electronic percussion instrument according to this embodiment is different from the above embodiment in the hardware configuration of the drum pad 1. In the above embodiment, only one vibration sensor 11 is provided on the back surface of the base portion 9 of the drum pad 1. On the other hand, in the present embodiment, a plurality of vibration sensors 11 are arranged on the back surface of the base portion 9 with a predetermined distance interval.

  When a hit by the hitting member 12 is given to the hitting surface portion 10 of the drum pad 1 having such a structure, vibration due to the hit is transmitted to each vibration sensor 11 via the base portion 9, and each of these vibration sensors. 11 outputs an analog vibration detection signal.

The vibration detection signals output from the respective vibration sensors 11 are converted into digital signals by the A / D converter 2 and then supplied to the CPU 5 in parallel. When the vibration detection signal is supplied from each vibration sensor 11, the hitting mode detection unit realized by the CPU 5 specifies the position where the hit is given on the hitting surface unit 10 based on the deviation of the supply timing of those signals. Then, hitting position data representing the specified position is generated. The work memory 4 has a data holding area for temporarily storing the hitting position data, and the generated hitting position data is stored in this data holding area until new hitting position data is subsequently generated. Remembered.
The hit | damage aspect detection part detects the displacement amount of a hit | damage position by taking the difference of the new hit position data and the hit | damage position data memorize | stored in the data holding | maintenance area | region, if new hit position data are produced | generated. And after outputting the parameter showing the detected displacement amount, the hitting position data stored in the data holding area until then is replaced with new hitting position data. The parameter output from the striking mode detection unit is stored in the buffer area of the work memory 4 in the same manner as in the above embodiment.

FIG. 6 is a flowchart showing a characteristic operation of the present embodiment.
In this flowchart, Pdiff (i) is a character string indicating a specific parameter representing the displacement amount of the striking position, and a numerical value i input as a variable of Pdiff corresponds to the order representing the newness of each parameter. Yes. The constant n is a preset parameter reference count, and must be a positive integer of 3 or more.
The processing from Step 500 to Step 540 shown in this figure is the same as Step 100 to Step 140 in FIG. 3 except that the parameter to be handled is the parameter Pdiff (i) representing the displacement amount of the hitting position. .

When the determination result in step 540 is “YES”, the process proceeds to step 550, and whether or not the displacement amount of the striking position represented by the parameter Pdiff (i) is smaller or shorter than a predetermined displacement amount Pthr set in advance. Is judged. If the determination result in this step is “YES”, the process proceeds to step 560, the value of the variable i is incremented by 1, and then the process returns to step 540. On the other hand, if the determination result in step 550 is “NO”, processing in the non-roll performance style is performed (steps 570 to 580).
If the result of determination at step 540 is “NO”, processing during the roll performance is executed (steps 590 to 600).

  In the embodiment described above, the parameter representing the displacement amount of the striking position is sequentially stored in the buffer area. When a hit is given to the drum pad 1, at least three or more n parameters including new parameters obtained from the hit are referred to sequentially, and the hit positions represented by all the referred parameters are referred to. Only when the amount of displacement is smaller than the predetermined amount of displacement, a musical tone signal for roll performance is generated. Even with such a technique, it is possible to detect the hitting by the roll playing technique very precisely.

(Fifth embodiment)
In the above embodiment, the presence / absence of the roll performance method is determined by paying attention to only one of the elements that characterize the manner of impact, such as the impact time interval, impact strength, and amount of displacement of the impact position. On the other hand, in this embodiment, the presence or absence of a roll performance is determined by referring to a plurality of elements in a composite manner.
The hardware configuration of the electronic percussion instrument according to this embodiment is the same as that of the above embodiment. Further, when a vibration detection signal is supplied from the drum pad 1, the striking mode detection unit realized by the CPU 5 detects both the striking time interval and the striking strength from the vibration detection signal, and detects the striking time interval and the striking. A parameter representing the intensity is output.

FIG. 7 is a flowchart showing a characteristic operation of the present embodiment.
In this flowchart, the meaning of Tdiff (i) is the same as that of the flowcharts of FIGS. 3 and 4, and the meaning of Velo (i) is the same as that of the flowchart of FIG.
In the procedure shown in this figure, the processing in step 100 shown in FIG. 3 is replaced with the processing in steps 101 to 102. In step 101, first, new parameters Tdiff (0) and Velo (0) are acquired from the striking mode detection unit. In the following step 102, it is determined whether or not the impact strength represented by the parameter Velo (0) is smaller than a predetermined impact strength Vthr set as a threshold value in advance. If the determination result of this step is “YES”, the same processing as that after step 110 shown in FIG. 1 is performed. On the other hand, if the determination result in this step is “NO”, the process proceeds to step 170 as it is, and the processing for the non-roll performance method is performed (step 170 and step 180).

  In the embodiment described above, when a parameter is acquired from the batting mode detection unit, it is determined whether or not the batting intensity represented by the parameter is below a predetermined value, and if not, refer to the batting time interval. However, a musical tone signal for non-roll performance is generated. As a result, even if the time interval from the previous hit is short, if there is a certain level of impact strength, a musical sound signal for non-roll performance will be generated, so that the impact sound closer to natural percussion instruments Can be produced.

(Other embodiments)
The invention according to the present application can be variously modified.
In the above embodiment, the waveform data for the roll performance and the waveform data for the non-roll performance are stored in the waveform memory 6 one by one. On the other hand, you may make it memorize | store in the waveform memory 6 several types of waveform data from which the characteristic differs for the time of a roll performance. In such a modified example, when it is determined that a roll performance hit has been given, one of the several types of waveform data prepared for the roll performance is the closest to the given hit mode and characteristics. Select and play waveform data.
In the above embodiment, only one drum pad 1 is mounted on the electronic percussion instrument, but a plurality of drum pads 1 may be mounted. In such a modification, it is necessary to store in the waveform memory the same number of pairs of waveform data for the roll performance method and waveform data for the non-roll performance method as the number of each drum pad mounted.

  A personal computer equipped with an interface for inputting a vibration detection signal and a sound source that synthesizes a musical sound based on the musical sound signal is installed with a program that realizes the same functions as the striking mode detection unit and the waveform data identification unit. The same operation as the electronic percussion instrument of the above embodiment may be performed.

In the above embodiment, the waveform memory 6 stores two types of waveform data for the roll performance method and the non-roll performance method in advance, and according to the impact mode of the impact given to the impact surface portion 10 of the drum pad 1. One of the waveform data was selected. On the other hand, only one type of waveform data is prepared in the waveform memory 6, and at the time of roll performance, the tone color is changed by performing effect processing and filter processing on the musical tone signal obtained from the waveform data. Also good.
When conceptually showing the configuration and operation of such a modified example, “the waveform data storage means storing the waveform data of the hitting sound, the parameter storage means storing the parameters, the performance operator having a hitting surface, The striking mode detecting means for detecting the striking mode of the striking given to the striking surface of the performance operator and outputting the parameter representing the detected striking mode, and the parameters output from the striking mode detecting means according to the output order Storage control means for storing in the parameter storage means, generation means for generating a musical sound signal based on the waveform data in the waveform data storage means when a new parameter is stored in the parameter storage means, and the stored new Mode of hitting given to the hitting surface based on the contents of various parameters and the contents of at least two or more parameters stored previously An electronic percussion instrument comprising processing means for determining whether or not the performance is in a roll performance and applying a predetermined processing to the generated musical sound signal when it is determined that the performance is in a roll performance and Become.

It is a hardware block diagram of an electronic percussion instrument. It is a figure showing the structure of a drum pad. It is a flowchart which shows operation | movement of 1st Embodiment. It is a flowchart which shows operation | movement of 2nd Embodiment. It is a flowchart which shows operation | movement of 3rd Embodiment. It is a flowchart which shows operation | movement of 4th Embodiment. It is a flowchart which shows operation | movement of 5th Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Drum pad, 2 ... A / D conversion part, 3 ... Program memory, 4 ... Work memory, 5 ... CPU, 6 ... Waveform memory, 7 ... Sound generation control part, 8 ... Sound output part, 9 ... Base part, 10 ... striking surface part, 11 ... vibration sensor, 12 ... striking member.

Claims (8)

Waveform data storage means for storing the waveform data of the impact sound to be output during the roll performance and the waveform data of the impact sound to be output during the non-roll performance,
Parameter storage means for storing parameters;
A performance operator having a striking surface;
A striking mode detecting means for detecting a striking mode of the striking given to the striking surface of the performance operator and outputting a parameter representing the detected striking mode;
Storage control means for storing parameters output from the striking mode detection means in the parameter storage means according to the output order;
When a new parameter is stored in the parameter storage unit, the waveform data storage unit depends on the contents of at least two or more parameters stored before the new parameter and the contents of the new parameter. Waveform data specifying means for specifying any one of the two waveform data;
A tone signal output means for reading out the specified waveform data from the waveform data storage means and outputting a tone signal generated based on the read waveform data ;
The detected percussion mode is an electronic percussion instrument that is percussion strength, a displacement amount of a striking position on the striking surface, a combination of the striking strength and the displacement amount, or a combination of these and a striking time interval . Waveform data storage means for storing the waveform data of the impact sound to be output during the roll performance and the waveform data of the impact sound to be output during the non-roll performance,
Parameter storage means for storing parameters;
A performance operator having a striking surface;
A striking mode detecting means for detecting a striking mode of the striking given to the striking surface of the performance operator and outputting a parameter representing the detected striking mode;
Storage control means for storing parameters output from the striking mode detection means in the parameter storage means according to the output order;
When a new parameter is stored in the parameter storage unit, the waveform data storage unit depends on the contents of at least two or more parameters stored before the new parameter and the contents of the new parameter. Waveform data specifying means for specifying any one of the two waveform data;
A tone signal output means for reading out the specified waveform data from the waveform data storage means and outputting a tone signal generated based on the read waveform data ;
The hitting mode detecting means, when given a hit on the hitting surface, detects a time interval between the hit and the previous hit as a hitting mode, and outputs a parameter representing the detected time interval,
The waveform data specifying means has a predetermined average value of a time interval represented by a new parameter stored in the parameter storage means and a time interval represented by at least two or more parameters stored before the new parameter. An electronic percussion instrument that specifies waveform data of a percussion sound to be output during a roll performance, out of both waveform data of the waveform data storage means when the value is smaller than the value. Waveform data storage means for storing the waveform data of the impact sound to be output during the roll performance and the waveform data of the impact sound to be output during the non-roll performance,
Parameter storage means for storing parameters;
A performance operator having a striking surface;
A striking mode detecting means for detecting a striking mode of the striking given to the striking surface of the performance operator and outputting a parameter representing the detected striking mode;
Storage control means for storing parameters output from the striking mode detection means in the parameter storage means according to the output order;
When a new parameter is stored in the parameter storage unit, the waveform data storage unit depends on the contents of at least two or more parameters stored before the new parameter and the contents of the new parameter. Waveform data specifying means for specifying any one of the two waveform data;
A tone signal output means for reading out the specified waveform data from the waveform data storage means and outputting a tone signal generated based on the read waveform data ;
The hitting mode detection means, when given hitting on the hitting surface, detects the hitting strength of the hitting as a hitting mode, and outputs a parameter representing the detected hitting strength,
In the waveform data specifying means, the impact strength represented by the new parameter stored in the parameter storage means and the impact strength represented by at least two or more parameters stored before the new parameter are both predetermined values. An electronic percussion instrument that specifies the waveform data of a percussion sound to be output during a roll performance, out of both waveform data stored in the waveform data storage means. The electronic percussion instrument according to claim 3,
When the hit on the hitting surface is given , the hitting mode detecting means detects a time interval between the hit and the previous hit as a hitting mode together with the hitting strength, and the detected hitting strength and time interval. Output a parameter that represents
In the waveform data specifying means, a time interval represented by a new parameter stored in the parameter storage means and a time interval represented by at least two or more parameters stored before the new parameter are both predetermined values. An electronic percussion instrument that specifies the waveform data of a percussion sound to be output during a roll performance when the percussion intensity represented by the new parameter is smaller than a predetermined value. Waveform data storage means for storing the waveform data of the impact sound to be output during the roll performance and the waveform data of the impact sound to be output during the non-roll performance,
Parameter storage means for storing parameters;
A performance operator having a striking surface;
A striking mode detecting means for detecting a striking mode of the striking given to the striking surface of the performance operator and outputting a parameter representing the detected striking mode;
Storage control means for storing parameters output from the striking mode detection means in the parameter storage means according to the output order;
When a new parameter is stored in the parameter storage unit, the waveform data storage unit depends on the contents of at least two or more parameters stored before the new parameter and the contents of the new parameter. Waveform data specifying means for specifying any one of the two waveform data;
A tone signal output means for reading out the specified waveform data from the waveform data storage means and outputting a tone signal generated based on the read waveform data ;
When the hit on the hitting surface is given, the hitting mode detecting means detects the position displacement amount between the position where the hit is given and the position where the previous hit is given as the hit mode and detects Output a parameter indicating the amount of displacement,
The waveform data specifying means includes a position displacement amount represented by a new parameter stored in the parameter storage means and a position displacement amount represented by at least two or more parameters stored before the new parameter. An electronic percussion instrument that specifies waveform data of a percussion sound to be output during a roll performance, out of both waveform data of the waveform data storage means when smaller than a predetermined value. Waveform data storage means for storing the waveform data of the impact sound to be output during the roll performance and the waveform data of the impact sound to be output during the non-roll performance,
Parameter storage means for storing parameters;
A performance operator having a striking surface;
A striking mode detecting means for detecting a striking mode of the striking given to the striking surface of the performance operator and outputting a parameter representing the detected striking mode;
Storage control means for storing parameters output from the striking mode detection means in the parameter storage means according to the output order;
When a new parameter is stored in the parameter storage means, when the contents of at least two or more parameters stored before the new parameter and the contents of the new parameter satisfy a predetermined condition the one of the two waveform data in the waveform data storage means to identify the waveform data of impact sound to be output when roll performance, if does not satisfy the predetermined condition, impact sound to be output when non-roll performance a waveform data specifying means for specifying the waveform data,
An electronic percussion instrument comprising: a tone signal output unit that reads the specified waveform data from the waveform data storage unit and outputs a tone signal generated based on the read waveform data. The electronic percussion instrument according to claim 6 ,
The hitting mode detecting means, when given a hit on the hitting surface, detects a time interval between the hit and the previous hit as a hitting mode, and outputs a parameter representing the detected time interval,
The predetermined condition is that a time interval represented by a new parameter stored in the parameter storage means and a time interval represented by at least two or more parameters stored before the new parameter are both lower than a predetermined value. Electronic percussion instruments that are short. Waveform data storage means for storing the waveform data of the impact sound to be output during the roll performance and the waveform data of the impact sound to be output during the non-roll performance,
Parameter storage means for storing parameters;
A mode of batting given to a percussion instrument, which represents a batting strength, a displacement amount of a striking position on the striking surface, a combination of the striking strength and the displacement amount, or a combination of these and a striking time interval. Input means for inputting parameters;
A computer having output means for outputting a musical sound signal;
A storage control function for storing parameters input from the input means in the parameter storage means according to the input order;
When a new parameter is stored in the parameter storage unit, the waveform data storage unit depends on the contents of at least two or more parameters stored before the new parameter and the contents of the new parameter. A waveform data specifying function for specifying one of the two waveform data,
A program for realizing the output function of reading out the specified waveform data from the waveform data storage means and outputting a musical sound signal generated based on the read waveform data via the output means.

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