JP2712897B2 - Music control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a musical tone control apparatus for controlling musical tones according to bending and rotation of joints of various parts of a human body.

[0002]

2. Description of the Related Art A conventional electric guitar, for example, a MIDI guitar which outputs various MIDI information by a player's operation, detects a note-on trigger, a pitch or the like from a vibration of a string played by a player to generate a musical tone. Some control systems detect note-on triggers based on the vibration of the string played by the player, and control the musical tone by detecting the pitch from the fret held by the finger when the player plays the string. Was.

[0003]

By the way, the above-mentioned conventional MIDI guitar merely outputs pitch data including note-on data, velocity indicating the strength of a plucked string and pitch bend to a sound source, and is sounded. Since the timbre remains set in the sound source, a timbre change due to a difference in playing style such as a natural musical instrument, for example, a timbre change in accordance with a difference in playing style such as chopper, finger picking or picking with a pick cannot be obtained. There was a disadvantage.

Although it is possible to change the timbre according to the velocity value, it is different from the timbre change due to the difference in playing style. The present invention has been made under such a background, and provides a musical tone control device capable of changing the timbre depending on the playing style and capable of performing expressive performances like a natural musical instrument. The purpose is to:

[0005]

A tone control device according to the present invention has a plurality of strings, and is operated by a finger of a player's one hand.
Vibrating the string that was played or when the string was played
According to the fret being pressed by the finger of the player's other hand
Detecting a combination of a guitar-type musical sound information generating device for generating musical sound information and bending of each finger of at least one hand
Detecting means for detecting the musical tone according to a detection result of the detecting means ;
Control means for outputting tone control data for controlling a change in tone color of the tone based on the information .

[0006]

According to the above arrangement, a guitar-type musical tone information generating device is provided.
Bend combination of each finger of the player's stringer
Is detected, and the combination of the detected finger bending is
Timbre control data to change the timbre of the
Is forced. As a result, for example,
Picking by pper, finger picking, pick
The tone can be changed according to the playing technique such as playing.

[0007]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a musical sound control device according to an embodiment of the present invention. In this figure, ₁₁ to ₁₅ are finger sensors for detecting bending of each finger of a player's hand, respectively. As shown in FIG. 2, the gloves 2 to be worn on the right hand of the player are attached to the outer sides of the back of each finger. For details of this kind of technique, refer to the official gazette of the tone control device proposed by the present applicant (JP-A-2-135396).

Reference numeral 3 denotes a wrist sensor such as an acceleration sensor for detecting rotation of the wrist, which is attached to the back of the wrist of the glove 2 as shown in FIG. For details of this kind of technique, refer to the official gazette of the tone control device proposed by the present applicant (JP-A-1-167889).

Reference numeral 4 denotes a CPU (Central Processing Unit), a program ROM, a storage area for temporarily storing various data, and a RAM in which various registers and flags are secured.
And a one-chip microcomputer 5 having a built-in I / O interface, 5 is the above-mentioned MIDI guitar, and outputs MIDI data such as note-on data, note number data, and velocity. Reference numeral 6 denotes a sound source which is controlled by tone control data such as tone change data, note-on data, note number data, and velocity output from the microcomputer 4 and outputs a tone signal, and 7 receives a tone signal output from the tone generator 6. This is a sound system including an amplifier, a speaker, and the like that generate a musical sound.

In such a configuration, for example, the bending pattern of each finger and the presence / absence of wrist rotation shown in FIGS. 3 to 5 are associated with the playing style of the MIDI guitar (bass sound) in advance. It is stored in a RAM or the like in the microcomputer 4. In the case of FIG. 3, the middle finger,
The ring and little fingers are bent and the wrist is rotated. This is associated with a change in the timbre of the bass sound due to the playing technique of the chopper. In the case of FIG. 4, the ring finger and the little finger are bent, the wrist is kept at a fixed angle, and is not rotated. This is associated with the tone color change of the bass sound due to the finger picking playing technique. In the case of FIG. 5, only the index finger is bent and the wrist is rotated. This is associated with a change in the timbre of the bass sound due to the picking technique of picking.

Next, the operation of the microcomputer 4 will be described with reference to the flowcharts of FIGS.
When the player wears the glove 2 shown in FIG. 2 in his right hand and turns on the power to the musical tone control device shown in FIG. 1 while holding the MIDI guitar 5, the microcomputer 4 first proceeds to the process of step S1 in FIG. Initialize each part of the device. This initialization includes clearing each register and flag of the RAM, setting various parameters, and the like. Then, the microcomputer 4 proceeds to Step S2.

[0012] In step S2, the threshold setting of the finger sensor 1 ₁ to 1 ₅ and Listing sensor 3, i.e., whether to turn on when a finger is bent far, and was rotated when the wrist rotates much After setting the threshold value such as whether or not to be considered, the process proceeds to step S3. In step S3, after reading the value of the detection signal output from each finger sensors 1 ₁ to 1 _5, the process proceeds to step S4. In step S4, after reading the value of the detection signal output from the wrist sensor 3, the process proceeds to step S5.

[0013] In step S5, it is determined whether larger or not than the threshold value of ON of each finger sensor 1 ₃ to 1 ₅ all output values of the finger sensor 1 ₃ to 1 ₅ has been set in advance. That is,
It is determined whether or not the player has bent the middle finger, the ring finger, and the little finger as shown in FIG. Note that the chopper - For playing the index finger also bend, because it may strike the strings just the thumb, be in addition to the finger sensor 1 ₃ to 1 ₅ determines whether it is also on the finger sensor 1 ₂ Good. If the result of this determination is "YES"
In the case of, the process proceeds to step S6.

In step S6, it is determined whether or not the output value of the wrist sensor 3 is larger than a preset rotation threshold value of the wrist sensor 3. That is, the performer
As shown in (5), it is determined whether or not the user plays the chopper by rotating the middle finger, the ring finger and the little finger and rotating the wrist. If the result of this determination is "YES", then step S
Proceed to 7.

In step S7, a flag CHOP indicating that the sound is a chopper-bass sound is set to 1, and the process proceeds to step S8. In step S8, the flag FNP indicating the base sound of finger picking and the flag PIC indicating the base sound of picking by picking are both reset to 0, and then step S17.
Proceed to. On the other hand, if the decision result in the step S6 is "NO", that is, if the output value of the wrist sensor 3 is not larger than the preset threshold value of the rotation of the wrist sensor 3, the player can still It is determined that the playing style has not been performed, and the process proceeds to step S17.

The result of the determination in step S5 is "NO".
Cases, i.e., when the output value of the finger sensor 1 ₃ to 1 ₅ is not greater than the threshold value of the on each finger sensor 1 ₃ to 1 ₅ which is set in advance, the process proceeds to step S9. In step S9, it is determined whether larger or not than the threshold value of ON of each finger sensor 1 ₄ and 1 ₅ in which the output value of the finger sensor 1 ₄ and 1 ₅ are set in advance. That is, it is determined whether or not the player has bent the ring finger and the little finger as shown in FIG. If the result of this determination is "YES", the operation proceeds to step S10.

In step S10, it is determined whether or not the output value of the wrist sensor 3 is larger than a preset rotation threshold value of the wrist sensor 3. That is, as shown in FIG. 4, it is determined whether or not the player bends the ring finger and the little finger, keeps the wrist at a certain angle, does not rotate, and performs finger picking. If the result of this determination is "NO", the flow proceeds to step S11.

In step S11, a flag FNP indicating that the sound is a finger picking bass sound is set to 1, and the process proceeds to step S12. In step S12, a flag CHO indicating that the sound is a chopper bass sound
After resetting both the P and the flag PIC indicating that it is the picking bass sound by picking, the process proceeds to step S17. On the other hand, if the result of the determination in step S10 is "YES", that is, if the output value of the wrist sensor 3 is larger than the preset threshold value of the rotation of the wrist sensor 3, the player can still perform finger-picking. And the process proceeds to step S17.

The result of the determination in step S9 is "NO".
Cases, i.e., when the output value of the finger sensor l ₄ and l ₅ is not greater than the threshold value of the on each finger sensor l ₄ and l ₅ which is set in advance, the process proceeds to step S13 in FIG. 7. In step S 13, the output value of the finger sensor l ₂ determines greater or not than the threshold value of the preset finger sensor l ₂ sound. That is, as shown in FIG.
It is determined whether only the index finger is bent. If this determination is "YES", the flow proceeds to step S14.

In step S14, it is determined whether or not the output value of the wrist sensor 3 is larger than a preset rotation threshold value of the wrist sensor 3. That is, as shown in FIG. 5, it is determined whether or not the player is bending only the index finger and rotating the wrist to perform picking by picking. If this determination is "YES", the flow proceeds to step S15.

In step S15, a flag PIC indicating that the sound is a picking bass sound by picking is set to 1, and the flow advances to step S16. In step S16, a flag CHO indicating that the sound is a chopper-bass sound
After resetting both P and the flag FNP indicating that it is a finger picking bass sound to 0, the process proceeds to step S17 in FIG.

On the other hand, if the result of the determination in step S14 is "N
In the case of "O", that is, when the output value of the wrist sensor 3 is not larger than the preset rotation threshold value of the wrist sensor 3, it is determined that the player has not yet performed the picking technique by picking. To step S17 in FIG. On the other hand, if the decision result in the step S13 is "NO", it is determined that the player does not perform any of the chopper, the finger picking and the picking by the pick, and the process proceeds to a step S17 in FIG.

In step S17, the MIDI which receives MIDI data such as note-on data, note number data and velocity output from the MIDI guitar 5 is received.
After performing the receiving process, the process proceeds to step S18 in FIG. In step S18, it is determined whether or not the received MIDI data includes note-on data. If this determination is "YES", the flow proceeds to step S19.

At step S19, flags CHOP, F
The tone change data corresponding to the flag set to 1 in the NP and PIC is output to the tone generator 6 to instruct the tone change, and the received note-on data, note number data, and MIDI such as velocity are received.
After outputting the data to the sound source 6, the process proceeds to step S21.

On the other hand, if the result of the determination in step S18 is "N
If "O", that is, if the received MIDI data does not include note-on data, for example, pitch bend data or the like, the process proceeds to step S20. In step S20, after performing the MIDI processing other than the processing of step S19 according to the received MIDI data, the process proceeds to step S21. In step S21, after performing other processing, the process returns to step S3 in FIG. 6, and the above-described processing is repeated.

In the above-described embodiment, an example is described in which the rendition style is detected based on the bending pattern of each finger and the presence / absence of rotation of the wrist. However, the rendition style may be detected based only on the bending pattern of each finger. Further, in the above-described embodiment, the example in which the bending patterns of the fingers in FIGS. 3 to 5 are associated with the playing styles has been described, but the present invention is not limited to this. Further, the player may be able to set arbitrarily.

Further, in the above-described embodiment, an example is shown in which the playing style and the tone color correspond to each other like a natural musical instrument. However, the present invention is not limited to this. Is also good. For example, the playing style of a chopper is associated with a bass sound, the playing style of finger picking is associated with a brass sound, the playing style of picking with a pick is associated with a piano sound, and the like. Thereby, in the past, the performance had to be interrupted to operate the separately provided tone color changeover switch, but as described above, by associating the playing style with the tone color, without interrupting the performance,
You can change the tone quickly.

In addition, in the above-described embodiment, a specific method for changing the timbre is not shown. However, the basic timbre is switched by a program change, or the overtone component is changed by a filter or the like while the basic timbre remains unchanged. Alternatively, any method may be used, such as changing the effect.

Further, in one embodiment described above, shows an example of detecting each rendition style by comparing the output value and the respective threshold of each finger sensors 1 ₁ to 1 ₅ and Listing sensor 3 one However, R in the microcomputer 4
It may be detected by referring to a table stored in the AM or the like, or may be compared with the previous output value of each sensor and the current output value, and detected using fuzzy inference or the like, or , May be detected by learning using neuro. Further, in the above-described embodiment, the finger bending is detected merely by detecting which finger is bent. However, it is also possible to detect which joint of each finger is bent and to perform finer control. May be performed.

Here, some embodiments of the present invention will be described as follows. (A) The musical tone control device according to claim 1, wherein the recognizing means recognizes a playing style of a player's guitar. (B) The musical sound control device according to claim 1, wherein the recognition means detects bending of each finger and rotation of a wrist.

[0031]

As described above, according to the present invention, the tune of the finger bent by the hand of the player striking the strings is used.
Bending combinations are detected, and the detected finger bending combinations
Tone control data that changes the tone of the tone generated
Data is output, for example, chopper, finger
-The tone can be varied depending on the playing method such as picking, picking by picking , and the like, so that the effect that the expressive performance can be performed like a natural musical instrument can be obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a musical sound control device according to an embodiment of the present invention.

2 is a diagram showing an example of the configuration of the finger sensor 1 ₁ to 1 ₅ and Listing sensor 3.

FIG. 3 is a diagram showing an example of a combination of a bending pattern of five fingers and rotation of a wrist.

FIG. 4 is a diagram showing an example of a combination of a bending pattern of five fingers and rotation of a wrist.

FIG. 5 is a diagram showing an example of a combination of a bending pattern of five fingers and rotation of a wrist.

FIG. 6 is a flowchart showing the operation of the microcomputer 3.

FIG. 7 is a flowchart showing the operation of the microcomputer 3.

FIG. 8 is a flowchart showing the operation of the microcomputer 3.

[Explanation of symbols]

1 ₁ to 1 ₅ ...... finger sensor, 2 ...... gloves, 3 ...... list sensor, 4 ...... micro computer, 5 ...... MIDI guitar, 6 ...... sound source, 7 ...... sound system.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical display location G10H 1/32 G10H 1/32 Z

Claims (1)

(57) [Claims] A finger having a plurality of strings and one hand of a player
The strings vibrate or are struck by
To the fret held down by the finger of the player's other hand
Guitar-type musical tone information generator that generates musical tone information according to
If, based on the musical tone information in accordance with a detection means for detecting at least the combination of the bending of the fingers of one hand, the detection result of said detecting means
Control means for outputting tone control data for controlling a change in tone color of the tone.