JPH06242782A - Electronic bow instrument - Google Patents

Abstract

PURPOSE:To provide the electronic bow instrument which accurately reflect the state of bowing operation by a player on characteristics of a generated musical sound similarly to a performance on a natural bow instrument. CONSTITUTION:When a manual operation element in a bow shape is placed in bowing operation, the bowing operation speed detected sequentially by a bowing sensor 1 for bowing operation speed detection is converted by an A/D converter 3 into corresponding digital bowing operation speed information, which is outputted in order. A CPU 4 detects whether or not the digital bowing operation speed information exceeds a previously set value and once the CPU 4 detects the converted digital bowing operation speed information exceeds the previously set value, the start of sound generation is indicated by the CPU 4 in response to the detection. At least one of the timbre and pitch of a musical sound to be generated according to the indication is controlled according to digital bowing operation speed information outputted sequentially from the sensor for bowing operation speed detection and A/D converter 3 similarly to a musical performance on the natural bow instrument like a violin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic stringed instrument, and more particularly to an electronic stringed instrument that produces a desired musical tone in response to string information generated by a player's stringing operation.

[0002]

2. Description of the Related Art As a conventional electronic string instrument, a rotary rod in charge of a string is rotated in response to a string operation, and a generator provided at one end of the rotary rod is rotationally driven. It is known that a musical sound is generated with a volume corresponding to the rotation speed. According to this conventional electronic stringed musical instrument, the stringed speed, that is, the bow moving speed is increased, for example, and the value of the analog stringed detection signal (output voltage value) is gradually increased correspondingly. If you do, in proportion to that,
The volume level of the musical sound can be gradually increased.

However, it is only possible to proportionally increase or decrease the volume level of the musical sound according to the analog string detection signal. For example, when the playing speed is gradually increased, There is a problem that the volume of the musical sound cannot be reduced in inverse proportion to the playing speed, or the volume of the musical sound cannot be rapidly increased from a certain level of speed. There is also a problem in that it is not possible to appropriately change the parameters of the musical sound to be generated, for example, the timbre content, depending on the playing speed.

Further, since the generator used in the above-described conventional electronic stringed instrument does not respond very well to the stringer's stringing operation force, the stringer suddenly changes the stringing operation speed from the beginning. Even if the speed is increased, the output level from the generator cannot be rapidly raised. Therefore, there is a problem that the string operation state of the string player cannot be properly reflected in the volume of the musical sound to be generated.
Therefore, contrary to the case described above, if the response sensitivity of the generator is set to be high, there is a problem in that even if a slight rubbing operation or erroneous operation is performed, an unnecessary musical sound is generated.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems of the prior art. The state of the string operation of the performer is determined by the tone parameter of the tone to be generated, for example, the volume level, The purpose of the present invention is to obtain an electronic stringed instrument that can be appropriately reflected in the tone color content. Further, according to the present invention, even if there is a noise-like output due to a slight string operation or erroneous operation, it is possible to obtain an electronic string instrument that can prevent unnecessary musical sounds from being generated in response to the output. The purpose is to Further, according to the present invention, when a slow rubbing operation is performed at the start of the rubbing operation and then the rubbing operation is gradually increased, it is generated appropriately in response to the slow speed of the rubbing operation. It is an object of the present invention to obtain an electronic stringed instrument capable of variably controlling musical tone parameters of a musical tone to be played.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. <Overall External Configuration> FIG. 1A shows the external configuration of the electronic stringed instrument according to this embodiment. The rubbing string instrument main body KG, which is entirely in the shape of a violin, is provided with a rubbing string operation detection unit SK, a pitch setting switch group 5, and a sound system 17.
The rubbing operation detecting unit SK includes four rotatable shafts 51 ...... spanned by a pair of support plates 50, and a generator provided at one end of each of the rotary shafts 51 ……. 52 ... and. As shown in FIG. 1B, the outer circumference of the rotary shaft 51 ...
When 1 ... is rotated, that is, when the string is operated,
A cylindrical friction member 54 made of a rubber material or the like is attached so that the rotary shafts 51 can be reliably driven to rotate. Further, the generator 52, which constitutes the rubbing string sensor 1 described later, includes a rotor (permanent magnet) 51a fixed to the rotating shaft 51, and a field coil portion 51b provided on the outer periphery thereof. And outputs a rubbing voltage value corresponding to the rotating operation of the rotating shafts 51. Further, as shown in FIG. 1C, both ends of the rotary shafts 51 ... Are rotatably supported by the support plates 50, 50 via bearing portions 55.

On the other hand, the pitch setting switch group 5 is composed of a large number of pitch setting switches embedded in a matrix in the fingerboard 5B of the neck portion 5A.
On the fingerboard 5B, four strings 5C
Is stretched, and one end of each of the strings 5C is attached to the head portion 5
The other end is fixed to the support plate 50. A speaker 5F that constitutes the sound system 17 is provided in the body portion 5E.

<Overall Circuit Configuration> FIG. 2 is a diagram showing the overall circuit configuration of this embodiment. A rubbing string sensor for detecting the above-mentioned rubbing string speed is provided in the rubbing string operation detecting section SK of the electronic stringed instrument body KG. 1 is provided. The detection signal from the rubbing string sensor 1 is converted into digital rubbing string data by the A / D converter 3 and then given to the CPU 4 which is a central processing unit. The CPU 4 controls the circuit operation of the entire musical instrument.

The CPU 4 switches the pitch setting signals from the pitch setting switch group 5 for setting the pitch of the musical tone to be generated and various control effects to be given to the musical tone and the musical tone. An output signal from the tone color / effect changeover switch group 6 is given.

The CPU 4 is also connected to a string data / initial data conversion table 7 for converting the digital string data from the A / D converter 3 into digital initial converted data. According to the digital initial conversion data output from the string data / initial data conversion table 7, the volume level of the musical sound is determined. This string data / initial data conversion table 7
An example of the contents of is as shown in the contents of the string data / initial data conversion table 7 of FIG. In this example,
The table contents are set so that the digital rubbed string data corresponding to the rubbed string speed is changed to the linearly converted converted data, but the digital rubbed string data is converted to the nonlinear converted data. You may make it convert suitably and obtain a special control effect. A read-on memory (ROM) may be used instead of the conversion table 7. For further simplification, such conversion table 7 may not be used, and the digital rubbed string data itself may be used as it is as the initial breath data.

The CPU 4 operates the internal ADIN buffer 8, the counter 8a and the like to control the musical tone waveform generating circuit 9 to generate musical tone waveforms corresponding to the blowing operation. The ADIN buffer 8 is the A / D converter 3
It is for temporarily storing the digital rubbed string data (0 to 127) output from the. The counter (8a) starts counting when the digital string data (0 to 127) exceeds a predetermined set value (value 10), and after the predetermined count, instructs the CPU 4 to end the count. It is for. Further, the CPU 4 sends a control signal to the envelope generator 10 to generate an envelope waveform signal that determines the waveform envelope of attack decay, sustain, release, etc. of the tone waveform.

The tone waveform signal output from the tone waveform generating circuit 9 is multiplied by the envelope waveform signal from the envelope generator 10 in the multiplier 11 to generate a tone waveform signal having a predetermined envelope. The C
The PU 4 is controlled so as to generate initial rubbed string data for determining the volume level of a musical tone when the musical tone is sounded. In addition, after the musical tone is generated, it is controlled to generate after-string data for determining the volume level of the generated musical tone.

Further, the tone waveform signal from the multiplier 11 is
The multiplier 12 multiplies the initial rubbed string data from the initial data register 13 whose output is controlled by the CPU 4. The tone waveform signal variably controlled by the initial string data is similarly output from the CPU 4 in the multiplier 14 in the after data register 15
Is multiplied by the after-rubbing string data from. The tone waveform signal variably controlled by this after data is D /
After being converted into an analog signal by the A converter 16, the sound system 17 outputs the sound as an audio signal.

The mode selection switch 19 has a first performance mode and a second performance mode in initial data generation described later.
It is a mode selection means for selectively switching the performance mode. When a selection switching signal for the first performance mode or the second performance mode is input from the mode selection switch 19, the CPU 4 controls the musical tone parameter of the musical tone to be generated from the musical tone generation circuit 18 according to each musical performance mode. To work. When the first performance mode is selected by this mode selection switch 19, the string sensor 1
The volume of the musical tone when the musical tone is generated is determined according to the value of the digital rubbed string data or the initial rubbed string conversion data detected from. On the other hand, when the second performance mode is selected, regardless of the value of the digital rubbed string data or the initial rubbed string conversion data detected by the rubbed string sensor 1, a predetermined set value, for example, the initial rubbed string data, is set. According to the maximum value of, the volume of the musical sound at the time of generating the musical sound is determined.

The tone waveform generating circuit 9, the envelope generator 10, the multipliers 11, 12, and 14, the initial data register 13, the after-data register 15, and the D / A converter 16 constitute a tone generating circuit 18. , The sound system 17 is provided in the main body KG of the electronic stringed instrument, but the musical tone generation circuit 18 and the sound system 17 are provided separately from the main body KG of the electronic stringed instrument, and these are electrically electrically connected to the main body KG of the electronic stringed instrument. It may be configured to be connected to.

<Operation of the Embodiment> Next, the operation of the embodiment having the above configuration will be described.

<CPU General Flow> FIG.
The general flow of PU4 is shown. First, when the power is turned on, in step 5-1, the CPU 4 detects the switch selection state of the mode selection switch 19 and performs a performance mode setting process according to the switch selection state. Next, in step 5-2, a pitch designation operation state detection process for detecting the pitch designation operation state for the pitch designation switch group 5 is performed. Next, in step 5-3,
If it is determined that the pitch designated operation state has changed, then in step 5-4, pitch designated operation state change processing for changing to the corresponding pitch data is executed. If it is determined that there is no change in the pitch specified operation state, the current pitch data is left unchanged. Next, in step 5-5, a string operation state detection process for detecting the string operation state by the string player is performed.

<Performance Mode Setting Process> FIG. 6 shows the details of the above-mentioned performance mode setting process 5-1. First, in step 6-1, the switch selection state of the mode selection switch 19 is read by the CPU 4, and this step 6-
If it is determined in step 1 that the first performance mode is selected, in step 6-2, the first performance mode setting process for setting the first performance mode is executed, and the first performance mode is selected. If not,
In step 6-3, a second performance mode setting process for setting the second performance mode is executed. After the first and second performance mode setting processes have been executed, this flow is exited.

<Time characteristic diagram of digital rubbed string data> Next, an example of the time characteristic of digital rubbed string data will be described before describing the detailed operation of the present embodiment. FIG. 3 is a characteristic diagram showing time characteristics of the digital rubbed string data after the analog rubbed string data detected by the rubbed string sensor 1 is converted into a digital signal by the A / D converter 3. The horizontal axis represents the elapsed time after the start of playing, and the vertical axis represents the value of the digital rubbed string data, which is a digital value in 128 steps from 0 to 127 when the resolution of the A / D converter 9 is 7 bits.
In the figure, a characteristic curve A is a characteristic curve when the character is played quickly from the beginning of the rubbing operation, B is a characteristic curve when the character is played gradually and strongly, and C is not for the purpose of playing but a noisy wind input is detected. It is a characteristic curve when it is performed.

<Case of Setting the First Performance Mode> Next, detailed operation of the present embodiment will be described separately for the case of setting the first performance mode and the case of setting the second performance mode. First, the case where the first performance mode is set will be described. FIG. 7 shows a musical tone control flowchart when the first performance mode is set. This flow is a flowchart that operates every predetermined time, and may be activated by a timer interrupt as needed, for example, at intervals of 0.1 msec to several msec. First, in step 7-1, A /
The digital rubbed string data output from the D converter 3 is sent to the CPU
Stored in the ADIN buffer 8 in 4. Next, at step 7-2, it is determined whether or not the key is currently on (tone generation of a musical tone), that is, whether or not 1 is set in the key-on flag 8b.

If the key-on flag is initialized since the power has just been turned on, the determination is NO, and the process proceeds to step 7-3 to determine whether the timer framer 8c is 1 or not. Since the counter 8a therein is not counting, it is determined to be NO here as well. In step 7-4, the ADI previously stored
It is determined whether or not the value of the digital rubbed string data written in the N buffer 8 is equal to or higher than the level 10 indicating the threshold level (key-on set value) at which sound generation is started, as shown in FIG. Since it is not necessary to pronounce the sound, the process directly returns to the main routine. On the other hand, the value of the digital rubbed string data is, for example, time 1 in FIG.
When the level becomes 10 or more at the point of, the process proceeds to step 7-5, where the above-mentioned timer flag 8c is set to 1 and the count value of the counter 8a in the CPU 4 is set to 1 to start counting. , And then returns to the main routine.

Subsequently, at time 2 in FIG. 3, when the above steps 7-1 to 7-3 are executed, since the timer flag 8c is set to 1 this time, it is determined to be YES in step 7-3. Then, the process proceeds to step 7-6. In step 7-6, it is determined whether or not the count value of the counter 8a is 5 which is the time for generating the initial data. Now it is still 1, so NO
Therefore, the process proceeds to step 7-7, the count value is incremented by 1, and the process returns to the main routine.

In this way, steps 7-1 to 7-7 are repeatedly executed. When the value of the counter 8a becomes 5, in order to generate the initial data, the process proceeds to step 7-8, and the string data / initial data conversion table 7 is accessed by the digital string data value of the ADIN buffer 8 at that time.

For example, as shown in the example of FIG. 3, ADIN of the characteristic curve A at the time when the timer count value is 5
When the content of the buffer 8 is 120, the converted initial conversion data is 124 according to the conversion table 7. On the other hand, the contents of the ADIN buffer 8 of the characteristic curve B at the time of the timer count value 5 in FIG.
In the case of, the initial conversion data after conversion by the conversion table 7 is as small as 40.

Next, at step 7-9, it is judged whether or not the current initial conversion data is 0, and now the characteristic curve A of FIG.
The initial conversion data corresponding to B and B are 124, 4
Since it is 0 and not 0, the process proceeds to step 7-10. In step 7-10, the CPU 4 obtains the pitch information obtained by detecting the pressing operation on the pitch setting switch group 5 and the initial data 124 and 40, and the tone generating circuit 18
Send to. Specifically, the values of 124 and 40 indicating the initial data are sent to the initial data register 13. Then, in response to the key-on information generated at the start of counting, the tone waveform signal output from the tone waveform generating circuit 9 and the envelope waveform signal output from the envelope generating circuit 10 are multiplied in the multiplier 11. Since the multiplied musical tone waveform signal is input from the multiplier 11 to the multiplier 12, the multiplier 12 has the initial data register 13 described above.
124 showing the initial rubbed string data input to
It will be multiplied by the value of 40. Therefore, in FIG.
As shown in a, the characteristic curve A or the characteristic curve B in FIG.
A musical sound is generated at a volume corresponding to. That is, in the case of the characteristic curve A, since the value of the initial conversion data is 124, the musical tone is generated with the volume corresponding to the value of 124 (the characteristic curve A in FIG. 9A).
See). On the other hand, in the case of the characteristic curve B, since the value of the initial rubbing string data is 40, a musical tone is generated with a volume corresponding to the value of 40 (see the characteristic curve B in FIG. 9a). .

Then, after outputting the pitch information and the initial conversion data to the tone generating circuit 18, step 7 is performed.
At -11, the key-on flag 8b is set to 1 and the timer flag 8c is set to 0 to prepare for the start of the next count, and then the process returns to the main routine.

In the case of the characteristic curve C in FIG. 3, that is, when the input due to noise or erroneous rubbed strings is detected as digital rubbed string data, not by the rubbed string operation for playing, step 7- At 9, it is determined that the initial data at the timer count value of 5 is 0. Therefore,
In such a case, it is considered that the rubbing string input has not been made at all, so that it is possible to prevent the musical tone from being started to sound unnecessarily. After sending the pitch information and the like to the tone generating circuit 18, both the timer flag 8c and the counter 8a are set to 0 in step 7-12 for initial setting, and the process returns to the main routine.

When it is determined in the previous step 7-2 that the key is on, it means that the musical tone is already being sounded, and therefore the presence or absence of the initial data does not matter. In step 7-13, it is determined whether or not the digital conversion data of the ADIN buffer 8 stored in step 7-1 is below the predetermined key-off set value level 5. If the answer is NO, it is necessary to control the musical tone being sounded by the after-rubbing string data. Therefore, in step 7-14, the digital conversion data of the ADIN buffer 8 is set as the after-rubbing string data and the musical tone is generated. It is sent to the generation circuit 18. Specifically, the after-rubbing string data is sent to the multiplier 14 via the after-data register 15. For this reason, the tone waveform signal after passing through the after-string data and the multiplier 12 is the multiplier 14
Is multiplied. Therefore, the tone parameters after tone generation are controlled according to the after-rubbing string data, and then the process returns to the main routine.

If YES is determined in step 7-13, it means that the mute processing of the tone being generated should be performed, and therefore the key-off information is output to the tone generating circuit 18 in step 7-15. Next, at step 7-16, the key-on flag 8b is set to 0. Furthermore, in step 7-17, the tone generation circuit 18 sets 0 as the after-rubbing string data.
And then returns to the main routine.

As described above, under the setting of the first performance mode, when the string operation is performed with the characteristic as shown by the characteristic curve A in FIG. 3, that is, the string player moves faster from the first point. In the case of playing and then gradually lowering the rubbing operation speed, a desired musical tone is generated and controlled with a characteristic as shown by a characteristic curve A in FIG. 9A corresponding to the rubbing speed state. . In this case, as shown by the characteristic curve A in FIG. 3, when the value 120 of the initial rubbed string data is a large value, a musical sound with a strong attack is generated from the time when the counting is started. After reaching the peak value, the musical tone is controlled based on the after-rubbing string data, so that the musical tone that is gradually attenuated can be obtained. In addition, the characteristic curve B in FIG.
When performing a string operation with the characteristics shown in, that is, the string player first plays at a slow speed and then gradually faster to reach the peak level, and then gradually decreases the string operation speed. If performed, a desired musical tone is generated and controlled with a characteristic as shown by a characteristic curve B in FIG. 9A corresponding to the chord velocity state. In this case, as shown by the characteristic curve B in FIG. 9a, when the value 40 of the initial rubbed string data is a relatively small value, the musical sound to be sounded from the time when the counting is started has a relatively weak attack. Becomes If the value of the initial string data at the time of pronunciation is small,
Since the volume level of the musical sound to be produced is determined by the small value, even if the plucker gradually plays faster after starting the pronunciation and plays up to the peak level, it follows the value of the initial string data. The volume level is only multiplied by the value of the afterstring data. Therefore, the volume level never reaches the peak level. Therefore, the change level of the volume level after the start of sounding is small.

Further, when the noise-like rubbing operation having the characteristic shown by the characteristic curve C in FIG. 3 is performed, the counter 8
Since the initial rubbing string data at the time of the count value 5 of a is 0, no musical sound is generated. Therefore, even if a rubbing operation is performed based on a cause such as an erroneous rubbing string, it is possible to prevent an unnecessary musical sound from being generated.

<In the case of setting the second performance mode> Next, the second
The case where the performance mode is set will be described. Figure 8
7 is a flowchart showing a musical tone control when the second performance mode is set. First, in step 8-1, A / D
The digital conversion data after converting the output signal of the converter 3 by the conversion table 7 is read, and A in the CPU 4 is read.
Store in the DIN buffer 8. Then step 8-2
Then, it is determined whether or not the key is on, that is, whether or not 1 is set in the key-on flag 8b.

If the key-on flag 8b is initialized in the main routine, NO.
It is determined that the result is ADIN in step 8-3.
It is determined whether or not the digital conversion data stored in the buffer 8 is at or above the level 10 which is the key-on set value shown in FIG.

If NO is determined here, it is considered that there is no rubbing string input, and the process returns to the main routine. However, as at the count time 1 in FIG. 3, the level of the digital conversion data becomes 10 or more. If so, the process proceeds to step 8-4, and the pitch information set by the pressing operation on the pitch setting switch group 5 and the value corresponding to 127 indicating the maximum value as the initial data are stored in the tone generation circuit 18. Output to the initial data register 13. It should be noted that this initial data is sent from the initial data register 13 to the multiplier 12.

Therefore, when the second performance mode is set, the value corresponding to 127, which indicates the maximum value of the initial string data, is always sent from the initial data register 13 to the multiplier 12. Therefore, in the second performance mode, the values 120 and 40 of the initial conversion data stored in the multiplier 12 and the initial data register 13 are effectively used as data for variably controlling the volume indicating the tone parameter. It will not be used. Then, in step 8-5, the key-on flag 8b is set to 1 and the process returns to the main routine.

If it is determined in step 8-2 that the key is on, in step 8-6 the ADI
It is judged whether or not the data stored in the N buffer 8 is equal to or lower than the key-off setting value level 5 shown in FIG.
When the level is 5 or less, as at the count time n + 1, it is time to mute the musical tone being currently sounded. Therefore, in step 8-7, the key-off information is given to the musical tone generating circuit 1.
8 is output, and in the next step 8-8, the key-on flag 8b is set to 0 and the process returns to the main routine.

If NO is determined in step 8-6, the tone generation of the tone is continued and it is necessary to control the tone parameter of the tone being sounded according to the after data. Therefore, since it is a case where the after data for controlling the tone parameters should be generated, step 8-
In step 9, ADIN stored in the previous step 8-1
The data, that is, the digital conversion data, is sent to the tone generation circuit 18 as after data. In particular,
The digital string data sent to the after data register 15 and stored in the after data register 15 is
It is output to the multiplier 14, and the multiplier 14 multiplies it with the tone waveform signal and then returns to the main routine.

As shown in the characteristic curve A of the time characteristic diagram of the digital rubbing string data shown in FIG. 3, when the performer performs the rubbing operation such that the player quickly plays the string, as shown in FIG.
Like the characteristic curve A of b, a musical tone having a volume change characteristic corresponding to the actual strength of the rubbed string input is emitted. Further, as shown by the characteristic curve B in FIG. 3, when the performer first plays at a slow speed and then gradually, so that when the plucked string is blown to the peak value like the characteristic curve A, As shown by the characteristic curve B of 9b, the volume level reaches the peak value gradually in the slow rising state, that is, in the weak attack state at first, and in the subsequent damping process, the sound level is gradually attenuated and the sound is muted. The Rukoto. It should be noted that, depending on the tone color of the musical sound to be produced,
For example, when a continuous tone is selected, the second tone is automatically
When the performance mode is set, and conversely, when a decaying tone color such as piano is selected, it is automatically set to the first performance mode, so that the volume has a change characteristic suitable for the tone color. You can play with musical sounds.

<Other Embodiments> In the above embodiment, the tone generation circuit 18 is provided with the multipliers 11, 12, and 14 to multiply the tone waveform signal from the tone waveform generation circuit 9 by various data values. The musical tone parameters of the generated musical tones are controlled, but the present invention is not limited to such a configuration, and the mode selection switch 19 may not be provided as described above.

Further, in this embodiment, the main body of the stringed instrument KG
The shape of the violin type is
The present invention is not limited to this, and may be of a stringed instrument type such as a viola, cello, or contrabass. Further, in the above embodiment, the volume of the musical tone to be generated and the volume of the musical tone being generated are variably controlled according to the initial rubbing string data and the after-rubbing string data.
The tone color or pitch of the musical tone to be generated and the tone color or pitch of the musical tone being generated may be variably controlled according to the initial string data and the after string data.
For example, a musical tone may be generated with a piano sound when played fast and with a flute sound when played slow.

In the above embodiment, the stringed instrument body KG is used.
The string speed detector MP, pitch setting switch group 5 and sound system 17 are provided in the
The sound system 17 may be provided outside the. Further, in the above embodiment, only one kind of the initial data conversion table 7 is provided, but a plurality of kinds may be provided and selectively used according to the tone color selection or the like. Furthermore, in the above embodiment, the generator 52 is used as the rubbing speed detection unit SK, but the present invention is not limited to this, and for example,
An optical speed detector such as a photocoupler may be provided at one end of the rotary shaft 51 to configure the rubbing speed detection unit.

[0042]

As is apparent from the above description, according to the present invention, the rubbing string detection signal from the rubbing string sensor means is converted into a corresponding digital rubbing string detection signal, and the digital rubbing string detection signal of the digital rubbing string detection signal is converted. When the value exceeds a predetermined set value, the musical tone is started to be generated in response thereto, while the musical tone parameter (for example, volume and tone color) of the musical tone being generated is set based on the value of the digital string detection signal. Since the structure for variably controlling is adopted, all tone control can be controlled by digital processing, so that various tone parameters can be variably controlled accurately and easily. Also,
According to the present invention, in response to the first time point when the value of the digital rubbed string detection signal accompanying the rubbed string operation exceeds a predetermined set value, a tone generation start signal is output to the tone generation means while the tone generation means is output. Based on the initial rubbing string data generated based on the value of the digital rubbing detection signal at the second time point after a lapse of a predetermined time from the one time point, the configuration is such that the tone parameter (volume, etc.) at the start of the tone generation is variably controlled. Therefore, even if a slight rubbing operation or erroneous rubbing operation is performed, it is possible to prevent the generation of unnecessary musical sounds. Further, according to the present invention, a tone generation start signal is output to the tone generating means in response to a value of the digital string detection signal accompanying the string operation exceeding a predetermined set value, while Regardless of the value of the digital rubbed string detection signal at the time when the set value is exceeded, the initial rubbed string data of a predetermined set value is set, and based on the initial rubbed string data, the musical tone parameter (volume level) at the time of generating a musical tone is set. Etc.), and after the musical tone is generated, after-rubbing string data is generated based on the value of the digital rubbing-string detection signal, and according to the after-rubbing string data, the musical tone parameter (volume, tone color, etc.) during the generation of the musical tone. Since it has a configuration that variably controls the string operation, if a slow string operation is performed in the initial stage of starting the string operation, and then the string operation is gradually increased, it is appropriate for the slow speed of the string operation. In response, the tone parameter of the tone to be generated can be controlled variably.

[Brief description of drawings]

FIG. 1A is an external view showing an embodiment of an electronic rubbed string instrument according to the present invention.

FIG. 1B is a cross-sectional view showing the vicinity of a rubbing operation detection unit and a bow.

FIG. 1C is a cross-sectional view showing the periphery of a bearing portion of a rotary shaft.

FIG. 2 is an overall circuit configuration diagram used in this embodiment.

FIG. 3 is a diagram showing characteristic curves A and B of digital rubbed string data that change over time.

FIG. 4 is a diagram showing an example of conversion contents of a rubbed string data initial data conversion table.

FIG. 5 is a diagram showing a general flowchart of a CPU.

FIG. 6 is a diagram showing a flowchart of performance mode setting processing.

FIG. 7 is a diagram showing a flowchart for controlling musical tone parameters in the case of setting a first performance mode.

FIG. 8 is a diagram showing a flowchart for controlling a musical tone parameter when a second performance mode is set.

FIG. 9a is a diagram showing characteristic curves A and B of musical tone volume controlled under the setting of the first performance mode.

FIG. 9b is a diagram showing characteristic curves A and B of the musical tone volume controlled under the setting of the second performance mode.

[Explanation of symbols]

 1 rubbing string sensor 4 CPU 5 pitch setting switch group 7 rubbing string data initial data conversion table 18 tone generation circuit 51 rotation 52 generator SK rubbing string operation detector

Claims (12)

[Claims] 1. A manual manipulator operated by a player's rubbing operation, and a digital rubbing operation corresponding to the sequentially detected rubbing operation speed, which sequentially detects the rubbing operation speed of the manual operator. A rubbing string operation speed detecting means for sequentially outputting speed information, and it is detected whether or not the digital rubbing string operation speed information sequentially outputted from the rubbing string operation speed detecting means exceeds a preset set value. In response to this, in response to this, a tone generation instruction means for instructing the start of tone generation and at least one of the tone color or pitch of the tone to be generated according to the instruction of this tone generation instruction means, An electronic stringed musical instrument, comprising: a musical tone control means for controlling according to digital stringed string operating speed information sequentially output from the stringed string operating speed detecting means. 2. A pitch specifying means for detecting a fingering operation position made by a player and specifying a pitch corresponding to the fingering operation position, and a manual operator operated by a stringing operation of the player. And a rubbing operation speed detecting means for sequentially detecting the rubbing operation speed of the manual operator and sequentially outputting digital rubbing operation speed information corresponding to the sequentially detected rubbing operation speed, and the rubbing operation. It is detected whether or not the digital rubbing string operation speed information sequentially output from the speed detection means exceeds a preset set value, and if it is detected, the generation of a musical sound is started in response to this. And a tone generation instruction means for instructing the tone generation instruction means, and at least one of the tone color or tone pitch of the tone generated according to the instruction of the tone generation instruction means at the pitch designated by the tone pitch designating means. An electronic stringed musical instrument, comprising: a musical tone control means for controlling according to digital stringed string operation speed information sequentially output from the detection means. 3. A manual operating element operated by a player's rubbing operation and a digital rubbing operation corresponding to the rubbing operation speed sequentially detected by sequentially detecting the rubbing operation speed of the manual operating element. A rubbing string operation speed detecting means for sequentially outputting speed information, and it is detected whether or not the digital rubbing string operation speed information sequentially outputted from the rubbing string operation speed detecting means exceeds a preset set value. In response to this, in response to this, the tone generation instruction means for instructing the start of tone generation and the rubbing operation direction of the manual operator are sequentially detected, and the rubbing operation direction detected in sequence is detected. The rubbing string operation direction detecting means for sequentially outputting the indicated digital rubbing string operation direction information, and at least one of the tone color, effect, or pitch of the musical tone to be generated according to the instruction of the musical tone generation instructing means, Is it a means of detection? The electronic stringed instrument according to claim 1, further comprising: a musical tone control unit that controls the digital stringed string operation direction information that is sequentially output from the electronic musical instrument. 4. A pitch specifying means for detecting a fingering operation position made by a player and specifying a pitch corresponding to the fingering operation position, and a manual operator operated by a stringing operation of the player. And a rubbing operation speed detecting means for sequentially detecting the rubbing operation speed of the manual operator and sequentially outputting digital rubbing operation speed information corresponding to the sequentially detected rubbing operation speed, and the rubbing operation. It is detected whether or not the digital rubbing string operation speed information sequentially output from the speed detection means exceeds a preset set value, and if it is detected, the generation of a musical sound is started in response to this. A musical tone generation instruction means for instructing, and a rubbing string operation direction detecting means for sequentially detecting the rubbing string operation direction of the manual operator and sequentially outputting digital rubbing string operation direction information indicating the sequentially detected rubbing string operation direction, , Previous Pitch at pitch designated by the designation means, musical tone to be generated in accordance with an instruction of the musical tone generation instruction means,
At least one of effect and pitch is both digital rubbing string operation speed information sequentially output from the rubbing string operation speed detecting means and digital rubbing string operation direction information sequentially detected from the rubbing string operation direction detecting means. An electronic stringed musical instrument characterized by comprising: 5. A musical instrument body, a manual operator operated by a player's rubbing operation, and relative movement speeds of the manual operator and the musical instrument body are sequentially detected, and the sequentially detected movements are performed. Moving speed detecting means for sequentially outputting digital moving information corresponding to speed, and detecting whether or not the value indicated by the digital moving speed information sequentially output from the moving speed detecting means exceeds a preset set value. And a setting value detecting means for performing the setting within the preset time from the time when the setting value detecting means detects that the value indicated by the digital moving speed information exceeds the preset setting value. Response information generating means for detecting a change state of the value indicated by the digital moving speed information and generating response information corresponding to the detected change state; According response information generated by the information generating means, electronic rubbed string instrument, characterized by comprising control means for controlling the characteristics of the generated musical tones, the. 6. A musical instrument main body, a pitch designating means provided on the musical instrument main body, a manual operator operated by a stringing operation of a player, and a relative position between the manual operator and the musical instrument main body. A moving speed detecting unit that sequentially detects the moving speed and sequentially outputs digital moving information corresponding to the sequentially detected moving speed, and a value indicated by the digital moving speed information that is sequentially output from the moving speed detecting unit. Set value detecting means for detecting whether or not the set value exceeds a set value, and this set value detecting means detects that the value indicated by the digital moving speed information exceeds a preset set value. From this point in time, a change state of the value indicated by the digital moving speed information within a preset time is detected, and response information corresponding to the detected change state is generated. Response information generating means, and control means for controlling characteristics of a musical tone having a pitch designated by the pitch designating means in accordance with response information generated by the response information generating means. An electronic stringed instrument. 7. A musical instrument main body, a manual operator operated by a player's rubbing operation, and relative movement speeds of the manual operator and the musical instrument main body are sequentially detected, and the sequentially detected movements are performed. Moving speed detecting means for sequentially outputting digital moving information corresponding to speed, and detecting whether or not the value indicated by the digital moving speed information sequentially output from the moving speed detecting means exceeds a preset set value. And a setting value detecting means for performing the setting within the preset time from the time when the setting value detecting means detects that the value indicated by the digital moving speed information exceeds the preset setting value. First response information generating means for detecting a change state of the value indicated by the digital moving speed information and generating response information corresponding to the detected change state; The generated from the response information generation means 1
First control means for controlling the characteristics of the musical sound to be started in accordance with the response information of 1., and the digital moving speed sequentially output from the moving speed detecting means after being started under the control of the first controlling means. Second response information generating means for generating second response information corresponding to the information, and the first response information generating means according to the second response information generating means.
An electronic stringed musical instrument, comprising: a second control means for controlling the characteristics of the musical sound started to be generated according to the control of the control means. 8. A rubbing string sensor means for detecting a rubbing string operation state with respect to a rubbing string input portion and outputting the detected rubbing string detection signal, and a rubbing string detection signal detected by the rubbing string sensor means.
Analog / digital conversion means for converting into a corresponding digital rubbed string detection signal, and when the value of the digital rubbed string detection signal converted by this analog / digital conversion means exceeds a preset set value, responds to it. A sound generation start instruction means for outputting a sound generation start instruction signal for instructing the start of sound generation of a musical sound, and a tone generated by the sound generation start instruction signal output from the sound generation start instruction means. An electronic rubbed string instrument, comprising: a musical tone characteristic control unit that variably controls a musical tone characteristic of a musical tone that is being generated based on a value of a digital rubbed string detection signal converted by the conversion unit. 9. A rubbing string sensor means for detecting a rubbing string operation state with respect to the rubbing string input section and outputting the detected rubbing string detection signal, and a rubbing string detection signal detected by the rubbing string sensor means.
An analog / digital conversion means for converting into a corresponding digital rubbed string detection signal, and a predetermined time elapses from a first time point when the value of the digital rubbed string detection signal converted by the analog / digital conversion means exceeds a predetermined set value. The preset setting value is set as the initial string data, regardless of the time counting means for measuring the time required until and the value of the digital string detection signal output from the analog / digital conversion means. Initial rubbing string data setting means to do, after the passage of the required time measured by the time measuring means,
With a characteristic corresponding to the initial string data set by the initial string data setting means, a sounding start instructing means for instructing the start of sounding of a musical sound, and a musical sound start instructing signal output from this sounding start instructing means. When a predetermined musical sound is generated from the musical sound generating means, the value of the digital rubbed string detection signal is converted sequentially by the analog / digital converting means after the generation of the musical sound is started by the instruction of the sound generation start instructing means. Based on the after-rubbing-string data generating means for sequentially generating the corresponding after-rubbing-string data, based on the after-rubbing-string data generated by the after-rubbing-string data generating means, the characteristic of the musical sound after the generation of the musical tone is variably controlled. An electronic stringed musical instrument, comprising: 10. The electronic string instrument according to claim 9, wherein the initial string data setting means sets the value of the digital string detection signal output from the analog / digital converting means as a predetermined set value. An electronic stringed instrument characterized by setting the maximum value of. 11. The electronic stringed instrument according to claim 8 or 9, wherein after generating a musical tone by the output of the tone generation start instruction signal from the tone generation start instruction means, the analog-digital conversion means When the value of the detected digital rubbed string detection signal becomes smaller than a predetermined set value, in response thereto, a sounding end instruction means for instructing the end of sounding of the musical tone currently being generated is further provided. A characteristic electronic stringed instrument. 12. An electronic rubbed string instrument according to claim 9 or 11, wherein said initial rubbed string data generation means sets a predetermined value of a digital rubbed string detection signal output from said analog / digital conversion means. An electronic stringed musical instrument, comprising: an initial data conversion means for converting the data into digital initial data.