JP2017167418A - Electronic wind instrument, music sound production method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic wind instrument allowing even a beginner user to easily produce musical sound with vibrato effect and to train subtone.SOLUTION: The electronic wind instrument includes: a bite sensor 7 for detecting force of holding a mouthpiece 6 between teeth: and a pressure sensor 8 for detecting a breath pressure blown from the mouthpiece 6. CPU 11 produces musical sound of subtone according to bite data Db based on the output of the bite sensor 7 and breath pressure data Dp based on output of the pressure sensor 8, so that even a beginner user can easily produce musical sound with vibrato effect and train the subtone.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an electronic wind instrument, a musical sound generation method, and a program that can easily produce a subtone or practice a subtone performance.

  In general, electronic wind instruments are equipped with a switch for specifying the pitch (pitch key) at the same key position as the acoustic wind instrument, and the pitch of the musical tone is specified by operating the switch, and the breath pressure is detected in the mouthpiece. A pressure sensor is provided, and the sound volume is determined according to the breath pressure detected by the pressure sensor.

  As this type of musical instrument, for example, in Patent Document 1, the position of the upper lip and the lower lip of a user touching the mouthpiece is detected, and a musical tone is formed according to parameters generated according to the detected upper lip position and lower lip position. For example, a technique for controlling the tone color of a generated musical tone according to the movement of a user's cheek or throat is disclosed.

JP 2000-122641 A

  By the way, in the technique disclosed in Patent Document 1 described above, timbre control according to the movement of the user's cheek or throat is realized based on the parameters obtained by detecting the positions of the user's upper lip and lower lip in contact with the mouthpiece. However, it is difficult for beginners to easily play subtones, which are often used in jazz performances and include soft sounds that contain breathing sounds. There is also a problem that it is difficult.

  The present invention has been made in view of such circumstances, and even a beginner user can easily produce a musical tone with a vibrato effect such as a subtone performance method or practice a subtone performance method. The object is to provide a method and program for generating musical sounds.

The electronic wind instrument of the present invention is
A byte sensor that detects the force of gripping the mouthpiece and outputs byte data representing the force of gripping the mouthpiece;
A breath sensor for detecting at least one of a breath pressure and a breath flow rate blown from the mouthpiece and outputting breath data;
A volume control unit for controlling the volume of the musical sound generated by the sound source according to the value of the breath data from the breath sensor;
A maintenance unit that maintains a value of the breath data when the value of the byte data becomes larger than the first value when the value of the byte data becomes larger than the first value;
The effect corresponding to the value of the byte data is added to the musical tone having the volume corresponding to the value of the maintained breath data from the time when the value of the byte data becomes larger than the first value. An additional part;
It is characterized by comprising.

The musical sound method of the present invention includes:
It is executed by an electronic wind instrument comprising a mouthpiece, a bite sensor for detecting a force for holding the mouthpiece, and a breath sensor for detecting at least one of a breath pressure and a breath flow rate blown from the mouthpiece,
Controlling the volume of the musical sound generated by the sound source according to the value of the breath data from the breath sensor;
When the byte data value is greater than the first value, the value of the breath data when the byte data value is greater than the first value is maintained,
From the time when the value of the byte data becomes larger than the first value, an effect corresponding to the value of the byte data is added to the musical sound having a volume corresponding to the value of the maintained breath data.
It is characterized by that.

The program of the present invention
A computer used for an electronic musical instrument comprising a mouthpiece, a bite sensor that detects a force to hold the mouthpiece, and a breath sensor that detects at least one of a breath pressure and a breath flow rate blown from the mouthpiece,
A volume control step for controlling the volume of the musical sound generated by the sound source according to the value of the breath data from the breath sensor;
Maintaining the value of the breath data when the value of the byte data becomes larger than the first value when the value of the byte data becomes larger than the first value;
An addition for adding an effect corresponding to the value of the byte data to a musical tone having a volume corresponding to the value of the maintained breath data from the time when the value of the byte data becomes larger than the first value. Steps,
Is executed.

  In the present invention, even a beginner user can easily sound a musical tone with a vibrato effect such as a subtone performance, or practice a subtone performance.

It is an external view which shows the waist structure of the electronic wind instrument 100 which is one Embodiment of this invention. 3 is a cross-sectional view showing the structure of a mouthpiece 6. 2 is a block diagram showing an electrical configuration of the electronic wind instrument 100. FIG. It is a flowchart which shows operation | movement of a main routine. It is a wave form diagram for demonstrating operation | movement of practice mode 1 process. It is a wave form chart for explaining operation of practice mode 2 processing. It is a wave form chart for explaining operation of practice mode 3 processing. It is a wave form diagram for demonstrating operation | movement of practice mode 4 process.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
A. Structure With reference to FIG. 1 to FIG. 2, a main structure of an electronic wind instrument 100 according to an embodiment of the present invention will be described. FIG. 1 is an external view showing the internal structure of the electronic wind instrument 100, and FIG. 2 is a cross-sectional view showing the structure of the mouthpiece 6. In FIG. 1, a pitch key 2 for fingering operation (performance operation) is provided on the front surface of a main body 1 having a saxophone shape. Inside the main body 1 on the open end 3 side, a speaker 4 that emits a musical sound is disposed. In addition to the power switch for turning the power on and off, various operation switches 5 for selecting a processing mode and a practice mode, which will be described later, are provided on the side of the main body 1.

  At the base end of the main body 1, a mouthpiece 6 is fitted, and a pressure sensor 8 for detecting the breathing pressure of a blower blown through the mouthpiece 6 is disposed. The mouthpiece 6 includes a bite sensor 7 having the structure shown in FIG. The bite sensor 7 detects the force with which the blower grips the mouthpiece 6. When the blower grips the mouthpiece 6, the rubber 7a pressed by the lower lip and the pressure applied to the rubber 7a are detected. And a pressure sensor 7b for detection.

B. Configuration Next, the electrical configuration of the electronic wind instrument 100 will be described with reference to FIG. FIG. 3 is a block diagram showing an electrical configuration of the electronic wind instrument 100. In FIG. 3, the bite sensor 7 detects the force with which the brass player holds the mouthpiece 6 and outputs a bite signal. The pressure sensor 8 detects a breath pressure blown from the mouthpiece 6 and outputs a breath pressure signal.

  The A / D converter 10 amplifies the level of the byte signal output from the byte sensor 7 and the pressure sensor 8, respectively, and then performs A / D conversion in a time-sharing manner under the control of the CPU 11, thereby converting the byte data Db and the breath data. Pressure data Dp is generated. The byte data Db and the breath pressure data Dp output from the A / D converter 10 are temporarily stored in the buffer area of the RAM 13 under the control of the CPU 10.

  A pitch key 2 (see FIG. 1) arranged on the front surface of the main body 1 generates pitch data corresponding to a fingering operation (pressing operation) of the blower. The operation unit 5 includes various operation switches 5 for selecting a processing mode and a practice mode, which will be described later, in addition to a power switch for turning the power on and off, and generates a switch event corresponding to the type of switch to be operated. . A switch event generated by the operation unit 5 is captured by the CPU 11.

  The CPU 11 sets the operation state of each part of the musical instrument based on various switch events generated by the operation unit 5, and also performs processing for setting a musical tone having a pitch designated by pitch data output from the pitch key 2. The sound source unit 14 is instructed to generate a subtone by modifying according to the mode and the practice mode. The characteristic processing operation of the CPU 11 according to the gist of the present invention will be described in detail later.

  The ROM 12 stores various program data loaded into the CPU 11. The RAM 13 includes a work area and a buffer area. The work area of the RAM 13 is used as a work area of the CPU 11 and temporarily stores various registers and flags. The buffer area of the RAM 13 is used as a ring buffer in accordance with the circulation address designated by the CPU 11 and sequentially takes in the byte data Db and the breath pressure data Dp output from the A / D converter 10 described above.

  The sound source unit 14 includes a plurality of tone generation channels (MIDI channels) configured by a well-known waveform memory reading method, and generates musical sound waveform data according to note-on / note-off events supplied from the CPU 11. The sound system 15 converts the musical sound waveform data output from the sound source unit 14 into an analog musical sound signal, performs filtering such as removing unnecessary noise from the musical sound signal, and then amplifies this to output from the speaker 4. Let it sound.

C. Operation Next, the operation of the main routine executed by the CPU 11 of the electronic wind instrument 100 will be described with reference to FIGS. As long as there is no notice, the subject of operation is CPU11.

  FIG. 4 is a flowchart showing the operation of the main routine executed by the CPU 11. When the power is turned on by operating the power switch, the CPU 11 advances the process to step S1 shown in FIG. 4 and initializes each part of the electronic wind instrument 100. When the initialization is completed, the process proceeds to step S2, and it is determined whether “low-pass filter mode” or “vibrato mode” is selected by operating the processing mode selection switch.

  If the “vibrato mode” is selected, the process proceeds to step S3 to execute the vibrato mode setting. Specifically, a vibrato effect is given to a musical tone having a pitch specified by a fingering operation of the pitch key 2. At that time, the sound source unit 14 is instructed to change the vibrato depth according to the byte data Db, and the process proceeds to step S5. Note that the tone generator 14 to which such a setting is made generates a musical tone with a vibrato effect that changes the pitch according to how the mouthpiece 6 is held. The vibrato rate may be fixed, or may be set by the vibrato rate switch of the various operation switches 5. In this way, a musical sound to which a vibrato effect like a subtone playing method is given can be generated.

  On the other hand, when the “low-pass filter mode” is selected, the process proceeds to step S4, and low-pass filter mode setting is executed. Specifically, for the musical tone having the pitch specified by the fingering operation of the pitch key 2, the tone generator 14 is instructed to perform tone color control for changing the cut-off frequency in accordance with the byte data Db, and the process proceeds to step S5. Proceed. Note that the tone generator 14 to which such a setting is made generates a musical sound with a vibrato effect that changes the sound quality according to how the mouthpiece 6 is held. In this way, a musical sound to which a vibrato effect like a subtone playing method is given can be generated.

  Subsequently, in steps S5 to S8, it is determined which of “practice mode 1” to “practice mode 4” has been selected by operating the practice mode selection switch. The operations of “practice mode 1 process” to “practice mode 4 process” executed when “practice mode 1” to “practice mode 4” are selected will be described below.

(1) Operation of practice mode 1 process When "practice mode 1" is selected, the determination result in step S5 is "YES", the process proceeds to step S9, and practice mode 1 process is executed. Here, the practice mode 1 process will be specifically described with reference to FIG. After selecting “Practice mode 1”, for example, a blower (user) blows into the mouthpiece 6 as shown by the breath pressure data Dp shown in FIG. Assume that the mouthpiece 6 is picked up as indicated by the byte data Db.

  Then, in the practice mode 1 process, as shown in FIG. 5C, the breath pressure at the time point T1 when the breath pressure data Dp exceeds the threshold value Th1 and the byte data Db exceeds the threshold value Th2 (first value). The data Dp is held, and the held breath pressure data Dp is maintained until time T2 when the byte data Db becomes equal to or less than the threshold value Th2.

  In other words, while the mouthpiece 6 is being held so that the lower lip of the blower presses the bite sensor 7 at the threshold Th2 or higher, once the breath is blown at a pressure equal to or higher than the threshold Th1 (second value), Even if the air pressure does not continue to be blown, the breath pressure data Dp of the threshold value Th1 or more is held.

  When the “vibrato mode” is selected, a musical tone having a volume corresponding to the pitch specified by the pitch key 2 and the held breath pressure data Dp is selected at the vibrato rate specified by the vibrato rate switch. The depth of the vibrato is changed according to the byte data Db. As a result, a musical sound with a vibrato effect with a constant volume that changes in pitch according to how the mouthpiece 6 is held can be obtained even if the breathing occurs midway, so even a beginner user can easily add a vibrato effect. Can be pronounced.

  On the other hand, when the “low-pass filter mode” is selected, a musical tone having a volume corresponding to the pitch specified by the pitch key 2 and the held breath pressure data Dp is cut off according to the byte data Db. Tone control to change As a result, even if you breathe in the middle, you can get a musical sound with a vibrato effect of a certain volume that changes the sound quality according to how you hold the mouthpiece 6, so even a beginner user can easily enjoy a musical sound with the vibrato effect added. It becomes possible to pronounce.

  As described above, according to the practice mode 1 process, if the beginner user is dedicated to holding the mouthpiece 6 so as to press the bite sensor 7 at the threshold Th2 or more, it is not necessary to breathe into the mouthpiece 6 constantly. It is possible to easily produce musical sounds with vibrato effect.

(2) Operation of practice mode 2 process When "practice mode 2" is selected, the determination result in step S6 is "YES", the process proceeds to step S10, and practice mode 2 process is executed. Here, the practice mode 2 process will be specifically described with reference to FIG. After selecting “practice mode 2”, for example, a blower (user) blows into the mouthpiece 6 as shown by the breath pressure data Dp shown in FIG. Assume that the mouthpiece 6 is picked up as indicated by the byte data Db.

  Then, in the practice mode 2 process, as shown in FIG. 6C, the breath pressure data Dp at the time point T1 when the breath pressure data Dp exceeds the threshold Th1 and the byte data Db exceeds the threshold Th2, Thereafter, the breath pressure data Dp is maintained until a time point T2 when it becomes equal to or less than the threshold value Th1.

  That is, as long as the mouthpiece 6 is held so that the lower lip of the blower presses the bite sensor 7 at the threshold Th2 or higher, the breath pressure at the time T1 is maintained as long as the breather continues to breathe at a breath pressure higher than the threshold Th1. Data Dp is held.

  When the “vibrato mode” is selected, a musical tone having a volume corresponding to the pitch specified by the pitch key 2 and the held breath pressure data Dp is selected at the vibrato rate specified by the vibrato rate switch. The depth of the vibrato is changed according to the byte data Db. As a result, if breathing is continued with a breathing pressure equal to or higher than the threshold Th1, a musical tone with a constant volume vibrato effect that changes the pitch according to how the mouthpiece 6 is held can be obtained.

  On the other hand, when the “low-pass filter mode” is selected, a musical tone having a volume corresponding to the pitch specified by the pitch key 2 and the held breath pressure data Dp is cut off according to the byte data Db. Tone control to change As a result, if breathing is continued with a breathing pressure equal to or higher than the threshold Th1, a musical tone with a constant volume vibrato effect that changes the sound quality according to how the mouthpiece 6 is held can be obtained.

  As described above, according to the practice mode 2 process, the blower (user) holds the mouthpiece 6 so as to press the bite sensor 7 at the threshold Th2 or more and continues to breathe at a breath pressure equal to or higher than the threshold Th1. This makes it possible to produce musical sounds with a certain volume of vibrato effect. Also, the practice mode 2 process is more difficult than the above-described practice mode 1 process, and is a step for practicing the subtone performance method.

(3) Operation of practice mode 3 process When "practice mode 3" is selected, the determination result in step S7 is "YES", the process proceeds to step S11, and practice mode 3 process is executed. Here, the practice mode 3 process will be specifically described with reference to FIG. After selecting “practice mode 3”, for example, a blower (user) blows into the mouthpiece 6 as shown by the breath pressure data Dp shown in FIG. Assume that the mouthpiece 6 is picked up as indicated by the byte data Db.

  Then, in the practice mode 3 process, as shown in FIG. 7C, the breath pressure data Dp is changed every predetermined interval from the time T1 when the breath pressure data Dp exceeds the threshold value Th1 and the byte data Db exceeds the threshold value Th2. The process of averaging (for example, moving average) every (first time) is continued until time T2 when the breath pressure data Dp is equal to or less than the threshold value Th1.

  That is, while the mouthpiece 6 is held so that the lower lip of the blower presses the bite sensor 7 at a threshold value Th2 or more, the averaged breath pressure obtained by averaging the breath pressure data Dp of the threshold value Th1 or more for each predetermined section. Data Dpa is generated.

  When the “vibrato mode” is selected, a musical tone having a volume corresponding to the pitch specified by the pitch key 2 and the averaged breath pressure data Dpa is selected at the vibrato rate specified by the vibrato rate switch. The depth of the vibrato is changed according to the byte data Db. As a result, if the breath pressure is greater than or equal to the threshold Th1, a musical tone with a vibrato effect that changes the pitch according to how the mouthpiece 6 is held can be obtained even if the breathing is not continued stably.

  On the other hand, when “low-pass filter mode” is selected, a musical tone having a volume corresponding to the pitch specified by the pitch key 2 and the averaged breath pressure data Dpa is cut off according to the byte data Db. Tone control to change As a result, if the breath pressure is equal to or higher than the threshold value Th1, a musical sound with a vibrato effect that changes the sound quality according to how the mouthpiece 6 is held can be obtained even if the breathing is not continued stably.

  As described above, according to the practice mode 3 process, the blower (user) holds the mouthpiece 6 so as to press the bite sensor 7 at the threshold value Th2 or higher and the breath pressure is equal to or higher than the threshold value Th1. Even if you don't keep breathing in, you can sound a musical tone with a vibrato effect. Also, in the practice mode 3 process, if a subtone having a constant volume is to be output, the difficulty level is increased as compared to the above-described practice mode 2 process, and this is a step for practicing the subtone playing method.

(4) Operation of practice mode 4 process When "practice mode 4" is selected, the determination result in step S8 is "YES", the process proceeds to step S12, and practice mode 4 process is executed. Here, the practice mode 3 process will be specifically described with reference to FIG. After selecting “Practice mode 4”, for example, the blower (user) blows into the mouthpiece 6 as shown by the breath pressure data Dp shown in FIG. Assume that the mouthpiece 6 is picked up as indicated by the byte data Db.

  Then, in the practice mode 4 process, as shown in FIG. 8C, the breath pressure data Dp is obtained from the time T1 when the breath pressure data Dp exceeds the threshold value Th1 and the byte data Db exceeds the threshold value Th2. The process of averaging (moving average) at intervals shorter than mode 3 (every second time) is continued until time T2 when the breath pressure data Dp becomes equal to or less than the threshold Th1.

  That is, while the mouthpiece 6 is held so that the lower lip of the blower presses the bite sensor 7 at the threshold Th2 or higher, the breath pressure data Dp of the threshold Th1 or higher is obtained for each section shorter than the practice mode 3 described above. Averaged breath pressure data Dpa is generated.

  When the “vibrato mode” is selected, a musical tone having a volume corresponding to the pitch specified by the pitch key 2 and the averaged breath pressure data Dpa is selected at the vibrato rate specified by the vibrato rate switch. The depth of the vibrato is changed according to the byte data Db. As a result, if the breath is stably blown at a breath pressure equal to or higher than the threshold Th1, a musical tone with a constant volume vibrato effect that changes the pitch according to how the mouthpiece 6 is held can be obtained.

  On the other hand, when “low-pass filter mode” is selected, a musical tone having a volume corresponding to the pitch specified by the pitch key 2 and the averaged breath pressure data Dpa is cut off according to the byte data Db. Tone control to change As a result, if breathing is continued stably with a breathing pressure equal to or higher than the threshold Th1, a musical tone with a constant volume vibrato effect that changes the sound quality according to how the mouthpiece 6 is held can be obtained.

  As described above, according to the practice mode 4 process, the blower (user) holds the mouthpiece 6 so as to press the bite sensor 7 at the threshold value Th2 or higher, and stably breathes at the breath pressure equal to or higher than the threshold value Th1. If it keeps blowing, it becomes possible to sound a subtone of a certain volume. In the practice mode 4 process, if a musical tone with a certain volume of vibrato effect is to be output, the degree of difficulty is higher than in the above-described practice mode 3 process, and this is a step for practicing the subtone playing method.

  As described above, in the present embodiment, the bite sensor 7 that detects the force of holding the mouthpiece 6 and the pressure sensor 8 that detects the breath pressure blown from the mouthpiece 6 are provided, and the bite based on the output of the bite sensor 7 is provided. Since the subtone is generated according to the data Db and the breath pressure data Dp based on the output of the pressure sensor 8, even a beginner user can easily generate the tone of the subtone performance or practice the subtone performance.

In the above-described embodiment, the vibrato depth is changed according to the byte data Db based on the selected processing mode, or the timbre control is performed to change the cutoff frequency. However, the present invention is not limited to this. Alternatively, a subtone may be expressed by performing timbre control that changes the cutoff frequency while vibrato is performed according to the byte data Db. Further, it is also possible to modify the musical tone of the sub-tone playing method by giving an effect such as vibrato according to the byte data Db to the musical tone to which the generated vibrato effect is added.
In the above-described embodiment, the pressure sensor 8 that detects the breath pressure of the blower blown through the mouthpiece 6 is used. However, a sensor that detects the flow rate of the breath is used instead of the pressure sensor 8. May be.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to it, It is included in the invention described in the claim of this application, and its equivalent range.

Hereinafter, each invention described in the scope of claims at the beginning of the present application will be additionally described.
(Appendix)
[Claim 1]
A byte sensor that detects the force of gripping the mouthpiece and outputs byte data representing the force of gripping the mouthpiece;
A breath sensor for detecting at least one of a breath pressure and a breath flow rate blown from the mouthpiece and outputting breath data;
A volume control unit for controlling the volume of the musical sound generated by the sound source according to the value of the breath data from the breath sensor;
A maintenance unit that maintains a value of the breath data when the value of the byte data becomes larger than the first value when the value of the byte data becomes larger than the first value;
The effect corresponding to the value of the byte data is added to the musical tone having the volume corresponding to the value of the maintained breath data from the time when the value of the byte data becomes larger than the first value. An additional part;
An electronic wind instrument comprising:

[Claim 2]
The electronic wind instrument according to claim 1, wherein the adding unit adds a vibrato effect.

[Claim 3]
When the value of the byte data becomes smaller than a second value, the volume control unit is configured to stop controlling the musical sound at a volume according to the value of the maintained breath data. The electronic wind instrument according to claim 1, wherein the control is switched.

[Claim 4]
When the value of the breath data becomes a value smaller than a third value, the volume control unit is configured to stop controlling the musical sound with a volume according to the value of the maintained breath data. The electronic wind instrument according to claim 1, wherein the control is switched.

[Claim 5]
The volume control unit averages the value of the breath data every first time, and the volume of the breath data at a volume corresponding to the averaged value until the value of the breath data is lower than a third value. When the musical sound is controlled and the value of the breath data becomes smaller than the third value, the control of the volume is switched so as to stop controlling the musical sound at a volume corresponding to the average value. The electronic wind instrument according to claim 1 or 2, characterized by the above-mentioned.

[Claim 6]
The volume control unit averages the value of the breath data every second time shorter than the first time, and averages the value until the value of the breath data becomes smaller than a third value. The musical sound is controlled with a volume according to the value, and when the value of the breath data becomes a value smaller than a third value, the control of the musical sound with the volume according to the averaged value is stopped. The electronic wind instrument according to claim 1 or 2, wherein the control of the volume is switched.

[Claim 7]
It is executed by an electronic wind instrument comprising a mouthpiece, a bite sensor for detecting a force for holding the mouthpiece, and a breath sensor for detecting at least one of a breath pressure and a breath flow rate blown from the mouthpiece,
Controlling the volume of the musical sound generated by the sound source according to the value of the breath data from the breath sensor;
When the byte data value is greater than the first value, the value of the breath data when the byte data value is greater than the first value is maintained,
From the time when the value of the byte data becomes larger than the first value, an effect corresponding to the value of the byte data is added to the musical sound having a volume corresponding to the value of the maintained breath data.
A musical sound generation method characterized by the above.

[Claim 8]
A computer used for an electronic musical instrument comprising a mouthpiece, a bite sensor that detects a force to hold the mouthpiece, and a breath sensor that detects at least one of a breath pressure and a breath flow rate blown from the mouthpiece,
A volume control step for controlling the volume of the musical sound generated by the sound source according to the value of the breath data from the breath sensor;
Maintaining the value of the breath data when the value of the byte data becomes larger than the first value when the value of the byte data becomes larger than the first value;
An addition for adding an effect corresponding to the value of the byte data to a musical tone having a volume corresponding to the value of the maintained breath data from the time when the value of the byte data becomes larger than the first value. Steps,
A program characterized by having executed.

DESCRIPTION OF SYMBOLS 1 Main body 2 Pitch key 3 Open end 4 Speaker 5 Operation part 6 Mouthpiece 7 Byte sensor 8 Pressure sensor 10 A / D conversion part 11 CPU
12 ROM
13 RAM
14 sound source section 15 sound system 100 electronic wind instrument

Claims (8)

A byte sensor that detects the force of gripping the mouthpiece and outputs byte data representing the force of gripping the mouthpiece;
A breath sensor for detecting at least one of a breath pressure and a breath flow rate blown from the mouthpiece and outputting breath data;
A volume control unit for controlling the volume of the musical sound generated by the sound source according to the value of the breath data from the breath sensor;
A maintenance unit that maintains a value of the breath data when the value of the byte data becomes larger than the first value when the value of the byte data becomes larger than the first value;
The effect corresponding to the value of the byte data is added to the musical tone having the volume corresponding to the value of the maintained breath data from the time when the value of the byte data becomes larger than the first value. An additional part;
An electronic wind instrument comprising:   The electronic wind instrument according to claim 1, wherein the adding unit adds a vibrato effect.   When the value of the byte data becomes smaller than a second value, the volume control unit is configured to stop controlling the musical sound at a volume according to the value of the maintained breath data. The electronic wind instrument according to claim 1, wherein the control is switched.   When the value of the breath data becomes a value smaller than a third value, the volume control unit is configured to stop controlling the musical sound with a volume according to the value of the maintained breath data. The electronic wind instrument according to claim 1, wherein the control is switched.   The volume control unit averages the value of the breath data every first time, and the volume of the breath data at a volume corresponding to the averaged value until the value of the breath data is lower than a third value. When the musical sound is controlled and the value of the breath data becomes smaller than the third value, the control of the volume is switched so as to stop controlling the musical sound at a volume corresponding to the average value. The electronic wind instrument according to claim 1 or 2, characterized by the above-mentioned.   The volume control unit averages the value of the breath data every second time shorter than the first time, and averages the value until the value of the breath data becomes smaller than a third value. The musical sound is controlled with a volume according to the value, and when the value of the breath data becomes a value smaller than a third value, the control of the musical sound with the volume according to the averaged value is stopped. The electronic wind instrument according to claim 1 or 2, wherein the control of the volume is switched. It is executed by an electronic wind instrument comprising a mouthpiece, a bite sensor for detecting a force for holding the mouthpiece, and a breath sensor for detecting at least one of a breath pressure and a breath flow rate blown from the mouthpiece,
Controlling the volume of the musical sound generated by the sound source according to the value of the breath data from the breath sensor;
When the byte data value is greater than the first value, the value of the breath data when the byte data value is greater than the first value is maintained,
From the time when the value of the byte data becomes larger than the first value, an effect corresponding to the value of the byte data is added to the musical sound having a volume corresponding to the value of the maintained breath data.
A musical sound generation method characterized by the above. A computer used for an electronic musical instrument comprising a mouthpiece, a bite sensor that detects a force to hold the mouthpiece, and a breath sensor that detects at least one of a breath pressure and a breath flow rate blown from the mouthpiece,
A volume control step for controlling the volume of the musical sound generated by the sound source according to the value of the breath data from the breath sensor;
Maintaining the value of the breath data when the value of the byte data becomes larger than the first value when the value of the byte data becomes larger than the first value;
An addition for adding an effect corresponding to the value of the byte data to a musical tone having a volume corresponding to the value of the maintained breath data from the time when the value of the byte data becomes larger than the first value. Steps,
A program characterized by having executed.

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