JP2017173654A - Electronic breath instrument, key operation determination device, control method of electronic musical instrument, and program of electronic musical instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic musical instrument capable of preventing sound break or reception failure of a key input due to overload on a CPU.SOLUTION: Disclosed electronic musical instrument includes: a plurality of keys which are operated for determining the pitch; a breath state detection part that detects a state of a breath blown in; a musical sound instruction part that instructs a sound source to generate a musical sound; and a determination part that, when determining a key is operated at each of first period within a second period including at least one or more first periods, determines to change at least one of the first period and the second period based on a piece of breath information detected by the breath state detection part.SELECTED DRAWING: Figure 7

Description

  The present invention relates to an electronic wind instrument, a key operation confirmation device, an electronic musical instrument control method, and an electronic musical instrument program.

  There is known an electronic wind instrument that electronically synthesizes and outputs the musical sounds of wind instruments. In this electronic wind instrument, it is known that a plurality of pressure-sensitive lip detectors are arranged on the lead, and the position of the lips and tongue is detected to control the sound (see Patent Document 1).

JP 7-72853 A

  In such musical tone control, the CPU built in the electronic wind instrument repeats a main routine including sound generation processing according to the output of the breath pressure sensor, pitch processing according to the operation of the performance operator, and other processing. Done by running. That is, one CPU performs task processing such as communication processing, sound generation by a sound source, key input, sensor control, and LCD control.

  Each task is defined so that processing is started at a constant cycle according to its property. For this reason, if a task with a high load continues, the CPU cannot complete the process in an assumed time, and a weight greater than the prescribed number of waits is generated. In particular, sound generation from a sound source requires a large amount of computation in the CPU, and it is known that depending on the selected sound source, the load is high. As a result, the sound may be interrupted or the key input may be missed.

  The present invention has been made in view of such circumstances, and an electronic musical instrument, an electronic musical instrument control method, and an electronic musical instrument program capable of suppressing sound interruption and key input omission due to an overload of a CPU. The purpose is to provide.

In order to achieve the above object, the present invention is grasped by the following configuration.
The electronic musical instrument of the present invention includes a plurality of keys that are operated to determine a pitch, a breath state detection unit that detects a state of a breath to be blown, a musical sound instruction unit that instructs a sound source to generate a musical sound, Based on the breath information obtained from the breath state detection unit when it is determined that the key is operated for each of the first periods within a second period including at least one first period. A determination unit that performs determination to change at least one of the first period and the second period.

  The key operation confirmation device of the present invention is supplied from the outside when it is determined that the key is operated every first period within a second period including at least one first period. And a determination unit that determines to change at least one of the first period and the second period based on the signal.

  The electronic musical instrument control method according to the present invention includes a plurality of keys operated to determine a pitch, a breath state detection unit that detects a state of a breath to be blown, and a musical sound instruction that instructs a sound source to generate a musical sound. A control method for an electronic musical instrument comprising: a first control unit, wherein the key is operated for each first period within a second period including at least one first period. And determining to change at least one of the first period and the second period based on the breath information obtained from the breath state detection unit.

  An electronic musical instrument program according to the present invention includes a plurality of keys operated to determine a pitch, a breath state detection unit that detects a state of a breath to be blown, and a tone instruction unit that instructs a sound source to generate a tone And when the control unit of the electronic musical instrument includes a second period including at least one or more first periods, and determines that the key has been operated for each of the first periods. And a process of making a determination to change at least one of the first period and the second period based on the breath information obtained from the state detection unit.

  According to the present invention, it is possible to provide an electronic musical instrument, an electronic musical instrument control method, and an electronic musical instrument program capable of suppressing sound interruption and key input omission due to CPU overload.

(A) is a top view of the electronic musical instrument which concerns on embodiment of this invention, (b) is a side view of an electronic musical instrument. It is a block diagram which shows the function structure of an electronic musical instrument. (A) is sectional drawing which shows a mouthpiece, (b) is a bottom view which shows a mouthpiece. It is a figure which shows the contact state of a player's oral cavity and a mouthpiece. (A) is a figure which shows an example of the key scan period and key operation fixed period which are set normally, (b) is a figure which shows an example of the key scan period and key operation fixed period when the contact of a tongue is detected, (C) is a figure which shows an example of a key scan period and a key operation fixed period when it is detected that there is little amount of breath blowing. It is a flowchart which shows a main routine. It is a flowchart which shows the flow of the process for determining a period.

  Embodiments according to the present invention will be described below with reference to the accompanying drawings. The electronic musical instrument according to the present embodiment is an electronic musical instrument that represents a performance in accordance with a performance method (for example, pitch bend or vibrato) of an acoustic wind instrument that is a woodwind instrument using a lead. Here, an example in which the electronic musical instrument is a saxophone will be described. However, the present invention is not limited to this, and may be applied to an electronic musical instrument imitating other wind instruments such as a clarinet. In addition, the same code | symbol is attached | subjected to the same element through the whole description of embodiment.

[Configuration of electronic musical instrument]
(Basic configuration of electronic musical instrument)
A basic configuration of the electronic musical instrument according to the present embodiment will be described with reference to FIG. FIG. 1A is a plan view of the electronic musical instrument, and FIG. 1B is a side view of the electronic musical instrument. As shown in FIGS. 1A and 1B, an electronic musical instrument 100 has an external shape imitating a saxophone that is an acoustic wind instrument, and includes a tubular portion 100a, a performance key 1, a sound system 9, and a mouthpiece. 10.
The tube part 100a is a housing part of a main body having a shape simulating a tube part of a saxophone.

  The performance key 1 is an operation unit that is arranged on the tube unit 100a and is operated by a player P (user) with a finger to determine a pitch. The performance key 1 receives a key operation from the player P and outputs pitch information as operation information to a CPU 5 described later. Note that a setting key for setting a function for changing the pitch according to the music key, a function for finely adjusting the pitch, and the like may be provided on the tube unit 100a.

  The mouthpiece 10 is connected to the tube part 100a, and the player P operates with the oral cavity. A lead 11 is attached to the mouthpiece 10 as will be described in detail later.

  The sound system 9 has a speaker or the like and outputs a musical sound. More specifically, the sound system 9 performs signal amplification or the like on the musical tone signal input from the sound source 8 and outputs it as a musical tone from a built-in speaker.

  Further, as shown in FIG. 1A as a partially transparent portion, a breath pressure detector 2, a CPU (Central Processing Unit) 5 as a control means, a ROM (Read) on a substrate built in the tubular body 100a. Only Memory (RAM) 6, RAM (Random Access Memory) 7, and sound source 8 are provided.

  The breath pressure detection unit 2 is a sensor that detects the pressure (breath pressure) of the breath blown into the mouthpiece 10 from the player P and outputs the breath pressure information (breath information) to the CPU 5. How the breath pressure information is used by the CPU 5 will be described later. The sound source 8 is a circuit that generates musical sounds, and the sound system 9 operates in accordance with the output of the sound source 8. The CPU 5, ROM 6 and RAM 7 will be described later.

(Functional configuration of electronic musical instrument)
A functional configuration of the electronic musical instrument 100 will be described with reference to FIG. FIG. 2 is a block diagram showing a functional configuration of the electronic musical instrument 100. As shown in FIG. 2, the electronic musical instrument 100 includes a performance key 1 described above, a breath pressure detection unit (breath state detection unit) 2, a lip detection unit 3, and a tongue detection unit (tongue state detection unit) 4. A CPU 5, a ROM 6, a RAM 7, the sound source 8 described above, and the sound system 9 described above. The above components of the electronic musical instrument 100 excluding the sound system 9 are connected to each other via a bus 9a.

  The lip detector 3 is a capacitive touch sensor that is provided on the lead 11 and detects the contact of the lip (lower lip) L of the player P. The lip detection unit 3 outputs the capacitance according to the contact position and the contact area of the lip L in the touch sensor to the CPU 5 as detection information of the lip L.

  The tongue detection unit 4 is a capacitance type touch sensor that is provided on the lead 11 and detects the contact of the player P with a tongue. The tongue detection unit 4 outputs the capacitance corresponding to the contact area of the tongue in the touch sensor to the CPU 5 as tongue detection information (tongue information). How the detection information of the tongue is used by the CPU 5 will be described later.

  The CPU 5 is a control unit that controls each unit of the electronic musical instrument 100. The CPU 5 reads a designated program from the ROM 6 and executes various processes described later.

  More specifically, the CPU 5 includes pitch information input from the performance key 1, breath pressure information input from the breath pressure detection unit 2, detection information of the lip L input from the lip detection unit 3, and Based on the tongue detection information input from the tongue detector 4, the sound source 8 is instructed to generate a musical tone.

  For example, the CPU 5 sets the pitch of the musical sound based on the pitch information input from the performance key 1. Further, the CPU 5 sets the sound volume based on the breath pressure information input from the breath pressure detector 2. Further, the CPU 5 finely adjusts at least one of the tone color, volume, and height of the generated musical tone in accordance with the detection information of the lip L input from the lip detection unit 3. The CPU 5 also sets the note on / off of the musical sound based on the detection information of the tongue (tongue) contact input from the tongue detector 4.

  The CPU 5 repeatedly executes these processes at a cycle set according to the processing content. For example, the CPU 5 repeatedly determines whether or not the performance key 1 has been operated at a predetermined cycle, and performs sound generation processing corresponding to the operation every time it is determined that the performance key 1 has been operated. However, such an operation sometimes becomes a heavy load on the CPU 5. Therefore, in the present embodiment, as will be described in detail later, the load on the CPU 5 is reduced by making the cycle longer than the cycle that is normally set according to the situation.

  The ROM 6 stores various data and various programs. The RAM 7 has a work area for temporarily storing various processed data.

  The sound source 8 is a synthesizer and generates a musical sound and outputs a musical sound signal to the sound system 9 according to a musical sound generation instruction (musical sound control) from the CPU 5.

(Details of mouthpiece)
With reference to FIG.3 and FIG.4, the structure of the mouthpiece 10 is demonstrated. FIG. 3A is a cross-sectional view showing the mouthpiece 10, and FIG. 3B is a bottom view showing the mouthpiece 10. In FIG. 3A, along the axial direction of the mouthpiece 10, the opening 13 side is referred to as “tip”, and the tubular body portion 100 a side is referred to as “heel”.

  As shown in FIGS. 3A and 3B, the mouthpiece 10 includes a mouthpiece body 10 a, a lead 11, and a fixture 12. The mouthpiece main body 10a is a main body part of the mouthpiece 10, and has an opening 13 for the player P to breathe. The lead 11 is provided below the mouthpiece body 10a, that is, corresponding to the lead position of the acoustic wind instrument. The fixture 12 is a fixture for attaching the lead 11 to the mouthpiece body 10a.

  As shown in FIG. 3B, the lead 11 has a plurality of electrode portions 40, 30 to 39 arranged at predetermined intervals from the tip side toward the heel side.

  The electrode unit 40 is an electrode unit of the capacitive touch sensor S <b> 10 that constitutes the tongue detection unit 4. The electrode units 30 to 39 are electrode units of the capacitive touch sensors S20 to S29 that constitute the lip detection unit 3. In the present embodiment, the lip detection unit 3 and the tongue detection unit 4 are configured as one component, but may be configured as separate components. Moreover, the shape of the electrode parts 40 and 30-39 is not limited to a rectangular shape like FIG.3 (b).

  How the mouthpiece 10 described above is operated by the player P will be described with reference to FIG. FIG. 4 is a view showing a contact state between the mouth of the player P and the mouthpiece 10. As shown in FIG. 4, when performing the electronic musical instrument 100, the performer P applies the upper front teeth E <b> 1 to the upper portion of the mouthpiece body 10 a, and winds the lower front teeth E <b> 2 with the lower lip L to the lead 11. touch. In this way, the mouthpiece 10 is held by the upper front teeth E1 and the lip L.

  The tongue inside the oral cavity at the time of performance is either a tongue T1 (solid line) in a state where the lead 11 is touched or a tongue T2 (a broken line) where the lead 11 is not touched, depending on the playing style. Here, it is known that the player P usually makes the tongue contact the lead 11 with the intention of suppressing the pronunciation of the musical instrument. In order to correspond to the performance of the player P, the touch sensor S10 described above detects the contact state of the tongue with the electrode unit 40. For example, a tan T1 indicated by a solid line in FIG. 4 indicates a state in contact with the lead 11, and a tan T2 indicated by a one-dot chain line in FIG. Then, the touch sensor S10 outputs detection information to the CPU 5.

  In addition, the player P usually touches the mouthpiece 10 with the lip L during sound generation. In this case, the player P may change the sound by operating the contact position and the contact area (contact pressure) of the lip L. On the other hand, the player P often releases the lip L from the mouthpiece 10 with the intention of weakening the pronunciation or stopping the pronunciation. Corresponding to such a playing method, the touch sensors S20 to S29 detect the contact state of the lip L with respect to the electrode portions 30 to 39. And touch sensor S20-S29 outputs each detection information with respect to CPU5.

  The CPU 5 calculates the contact position (for example, the center of gravity position) and contact area of the lip L on the lead 11 according to the detection information output from the touch sensors S20 to S29. Further, the CPU 5 determines the contact state (T1, T2) of the tongue based on the detection information output from the touch sensor S10.

  In addition, although arrangement | positioning of 11 electrode parts 40 and 30-39 was demonstrated as an electrode part of 11 touch sensors S10 and S20-S29 which comprise the lip | rip detection part 3 and the tongue detection part 4, it is limited to this. It is not something. The number, arrangement, and shape of the touch sensor and the electrode unit constituting the lip detection unit 3 and the tongue detection unit 4 can be arbitrarily set according to the specifications.

(Key scan cycle and key operation confirmation cycle)
As described above, the CPU 5 repeatedly executes various processes at a predetermined setting cycle. In particular, since the sound generation process is sometimes a heavy load on the CPU 5, the load on the CPU 5 is reduced by extending the set cycle under certain conditions.

  In this cycle setting process, the CPU 5 confirms the operation of the performance key 1 in a predetermined scan cycle, and the operation key 1 is operated when the operation of the performance key 1 is confirmed during a predetermined key operation confirmation cycle. The CPU 5 determines that the scan cycle and the key operation determination cycle are longer than the cycle that is normally set based on the detection results of the tongue detection unit 4 and the breath pressure detection unit 2 for each key operation determination cycle. And processing to set to. Here, the key scan cycle is a cycle in which the CPU 5 checks whether or not the performance key 1 has been operated. The key operation confirmation cycle is a cycle for determining that the performance key 1 is operated by the player P by continuing to operate the specific performance key 1.

  The above process will be specifically described with reference to an example shown in FIG. FIG. 5A is a diagram illustrating an example of a key scan period (first period) and a key operation confirmation period (second period) that are normally set, and FIG. 5B is a diagram in which contact with a tongue is detected. FIG. 5C shows an example of the key scan period (third period) and the key operation confirmation period (fourth period), and FIG. 5C shows the key scan when it is detected that the amount of breath blowing is small It is a figure which shows an example of a period (3rd period) and a key operation fixed period (4th period). In FIG. 5, the horizontal axis is the time axis, and the vertical axis is “high” for the time for the CPU 5 to scan the performance key 1 and “low” for the time that the CPU 5 can perform other processing. Show.

-Normally set key scan cycle and key operation confirmation cycle: Fig. 5 (a)
Under normal operating conditions, there is no tangging (contact of the tongue with the lead 11), and the amount of breath blowing is large (the breath pressure is high). Under this circumstance, there is a possibility that a quick operation of the performance key 1 may be performed, so it is appropriate to set the scan period of the performance key 1 to a period that does not skip sound.

  Therefore, in this embodiment, the key scan cycle Ps1 is set to 1 ms, for example, and the key operation confirmation cycle Po1 is set to 30 ms, for example. Therefore, if the operation of the performance key 1 is detected 30 times continuously (that is, 30 ms continuously) as a result of scanning every 1 ms, it is determined that the performance key 1 is operated by the player P, and the sound generation process is performed. Is done. On the contrary, if the operation state of the performance key 1 is changed before 30 ms elapses, the counter is reset and starts counting again from 1 ms.

  In this case, a time (Ps1-Ts) obtained by excluding the time Ts when the CPU 5 performs the scan of the performance key 1 from the key scan period Ps1 is a time To1 when the CPU 5 can execute other processes.

-Key scan cycle and key operation confirmation cycle when the contact of the tongue is detected: FIG. 5 (b)
When it is detected by the tongue detection unit 4 that the tongue is in contact, the CPU 5 sets a period (first period) longer than the period that is normally set. Here, the contact of tongue means that the detection signal of the tongue detector 4 is larger than a predetermined threshold th1. As described above, the operation of making the tongue contact the lead 11 (tanging) is a sign of intention to suppress the sound generation. Under such circumstances, it is usually unlikely that the performance key 1 is quickly operated. Therefore, even if a period longer than the normal period is set, it is considered that the influence on the sound quality is slight.

  Specifically, the CPU 5 sets the key scan period Ps2 longer than the normally set key scan period Ps1, and sets the key operation determined period Po2 longer than the normally set key operation determined period Po1. In the example of FIG. 5, the key scan period Ps2 is 2 ms, and the key operation confirmation period Po2 is 50 ms.

  In this case, as a result of scanning every 2 ms, it is determined that the performance key 1 has been operated by the player P only after the operation of the performance key 1 is detected 25 times (that is, 50 ms continuously). Will be done. Thus, the load on the CPU 5 is reduced by reducing the frequency of the sound generation process compared to the normal cycle.

  If the time Ts for the CPU 5 to execute the key scan is constant, the time (Ps2-Ts) obtained by removing the time Ts from the key scan cycle Ps2 is the time To2 at which the CPU 5 can execute other processes. . For example, when considering within a time of 2 ms so that the comparison is possible, since To2> 2 × To1, the CPU 5 leads to, for example, processing of the accumulated task.

-Key scan cycle and key operation confirmation cycle when it is detected that the amount of breath blowing is small: FIG. 5 (c)
When it is detected by the breath pressure detection unit 2 that the amount of breath blowing is small, the CPU 5 sets a period (second period) longer than the period that is normally set. Here, that the amount of breath blowing is small means that the detection signal of the breath pressure detector 2 is smaller than a predetermined threshold th2. In this case, since the performer P often plays a slow song, even if a period longer than the normal period is set, the influence on the sound quality is considered to be slight. This process may be performed on the condition that the tongue detector 4 detects that there is no contact with the tongue.

  Specifically, the CPU 5 sets the key scan period Ps3 longer than the normally set key scan period Ps1, and sets the key operation determined period Po3 longer than the normally set key operation determined period Po1. However, since sound generation processing is performed in this situation, the key scan cycle Ps3 is preferably the same as or shorter than the key scan cycle Ps2, and the key operation confirmation cycle Po3 is the same as or shorter than the key operation decision cycle Po2. It is preferable. In the example of FIG. 5, the key scan period Ps3 is 2 ms, similar to the key scan period Ps2, and the key operation confirmation period Po3 is 40 ms, which is shorter than the key operation confirmation period Po2.

  Therefore, as a result of scanning every 2 ms, it is determined that the performance key 1 has been operated by the player P only after the operation of the performance key 1 is detected 20 times (that is, 40 ms continuously). Will be done. Thus, the load on the CPU 5 is reduced by reducing the frequency of the sound generation process compared to the normal cycle.

  Further, a time (Ps3-Ts) obtained by excluding the time Ts when the CPU 5 executes the key scan from the key scan cycle Ps3 is a time To3 when the CPU 5 can execute other processes. Considering within the time of 2 ms as before, since To2> 2 × To1, the CPU 5 also facilitates the processing of the accumulated task, for example.

  The cycle setting pattern described above is merely an example, and other setting patterns may be employed. For example, the setting pattern may be increased by dividing the detection results of the tongue detection unit 4 and the breath pressure detection unit 2 into more detailed cases. Or you may increase a setting pattern by adding the detection result of another sensor (for example, lip detection part 3).

[Operation of electronic musical instrument]
The operation of the electronic musical instrument 100 having the above-described configuration will be described with reference to FIGS. FIG. 6 is a flowchart showing the main routine. FIG. 7 is a flowchart showing the flow of processing for determining the scan speed.

(Main routine)
With reference to FIG. 6, the main operation | movement of the electronic musical instrument 100 or the control method of the electronic musical instrument 100 is demonstrated.

  When the power is turned on, initialization processing is performed in step S11. Such processing is, for example, initialization of various settings.

  Next, in step S12, processing of the lip detection unit 3 and the tongue detection unit 4 is performed. This step is a process for detecting the contact state of the lip L and tongue with the lead 11 described above.

  In step S13, the processing of the breath pressure detection unit 2 is performed. This step is the above-described processing for detecting the amount of breath blowing (breath pressure).

  Next, in step S14, it is determined whether or not it is time to start the key operation confirmation cycle. Such steps are executed by the CPU 5. If it is determined that it is time to start the key operation confirmation cycle, the process proceeds to step S15, and if it is determined that the key operation confirmation cycle is in the middle, the process proceeds to step S16.

  Step S15 is a cycle setting process and will be described in detail later. In step S16, key switch processing is performed. In the key switch processing, key scanning is performed based on the cycle set in step S15, and the CPU 5 generates a key code corresponding to the operation information of the performance key 1 and supplies it to the sound source 8.

  Next, in step S17, sound generation processing is performed. In such processing, the sound source 8 operates the sound system 9 based on the received key code or the like.

  After step S17, other necessary processing is performed in step S18, and the entire processing procedure is completed. And step S12 to step S18 mentioned above are repeated.

(Cycle setting process)
With reference to FIG. 7, the process regarding the setting of the key operation confirmation cycle and the key scan cycle will be described in detail. Such processing is performed in the CPU 5. That is, the CPU 5 functions as a determination unit that performs a determination to change the setting of the key operation confirmation cycle and the key scan cycle based on the detection values from the tongue detection unit 4 and the breath pressure detection unit 2, and changes the settings. Processing is performed by functioning as a setting unit.

  First, in step S21, the detection value of the tongue detection unit 4 is compared with a predetermined threshold th1. That is, it is determined whether or not the tongue is in contact with the lead 11. If it is determined that the detection value of the tongue detection unit 4 is greater than the predetermined threshold th1, for example, a cycle shown in FIG. 5B is newly set in step S22, and the process returns to the main routine.

  On the other hand, if it is determined that the detection value of the tongue detection unit 4 is equal to or less than the predetermined threshold th1, the detection value of the breath pressure detection unit 2 is compared with the threshold th2 in step S23. In this step, if it is determined that the detection value of the breath pressure detection unit 2 is equal to or less than the threshold th2, that is, if it is determined that the amount of breath blowing is small, in step S24, for example, FIG. The indicated cycle is newly set and returned to the main routine.

If it is determined in step S23 that the detection value of the breath pressure detection unit 2 is greater than the threshold th2, that is, if it is determined that the amount of breath blowing is large, in step S25, for example, FIG. Is set, and the process returns to the main routine.
Since the cycle cannot be changed during the key scan, the determined cycle is set at the start timing of the key operation confirmation cycle Po1.

In this embodiment, the key operation confirmation cycle and the key scan cycle are set based on both the contact state of the tongue to the lead 11 and the amount of breath blowing. The key operation confirmation cycle and the key scan cycle may be set based on one of the blowing amounts.
In the present embodiment, when the contact state of the tongue with the lead 11 satisfies the first condition (for example, in the case of step S21), the key scan period is set to the first period (for example, FIG. 5B). (Step S22) When the state of breath blowing satisfies the second condition (for example, in the case of Step S23), the key scan period is set to the second period (for example, FIG. 5C) ( Step S24) When the contact state of the tongue with the lead 11 does not satisfy the first condition and the breath blowing state does not satisfy the second condition, the key scan period is set to the third period (for example, FIG. 5 (a)) (step S25). As described above, the key scan cycle can be lengthened or shortened according to the contact state of the tongue with the lead 11 and the breath blowing state.
Furthermore, the key operation confirmation cycle and the key scan cycle may be set based on the combination of the results of both the contact state of the tongue with the lead 11 and the amount of breath blowing.
For example, (1) There is a detection of tan, ・ Blowing amount is strong. (2) There is a detection of tan. ・ Blowing amount is weak. (3) There is no detection of tan. It may be determined whether there are four states where the blowing amount is weak, and a key operation confirmation cycle and a key scan cycle corresponding to each state may be set.

  As described above, in this embodiment, the key operation confirmation cycle and the key scan cycle are longer than the cycle that is normally set according to the contact state of the tongue with the lead 11 and the amount of breath blowing (state). By setting to, the load on the CPU 5 is reduced. As a result, it is possible to suppress sound interruptions and key input omissions.

  Further, the task reduction of the CPU 5 leads to suppression of power consumption. Therefore, when a battery is used as the power source, the battery can be made to last for a long time, so that the operation time of the electronic musical instrument 100 can be extended.

  The electronic musical instrument of the present invention has been described above based on the specific embodiments. However, the present invention is not limited to the specific embodiments described above, and the technical scope of the present invention includes the present invention. The present invention includes various modifications and improvements as long as the object of the invention can be achieved, which will be apparent to those skilled in the art from the claims.

The invention described in the scope of claims attached to the application of this application will be added below. The item numbers of the claims described in the appendix are as set forth in the claims attached to the application of this application.
<Claim 1>
Multiple keys operated to determine the pitch,
A breath state detector for detecting the state of the breath being breathed;
A musical sound instruction section for instructing the sound source to generate a musical sound;
Based on the breath information obtained from the breath state detection unit when it is determined that the key is operated for each of the first periods within a second period including at least one first period. A determination unit that determines to change at least one of the first period and the second period;
An electronic wind instrument comprising:
<Claim 2>
When the value of the breath information is larger than a first threshold, changing the first period to a third period longer than the first period, and changing the second period to the second period The electronic wind instrument according to claim 1, further comprising a setting unit that changes at least one of changing to a longer fourth period.
<Claim 3>
Provided with a tongue detector that detects the presence or absence of tongue contact with the lead,
3. The determination unit according to claim 1, wherein the determination unit performs determination to change at least one of the first period and the second period based on tongue information obtained from the tongue detection unit. Electronic wind instrument.
<Claim 4>
When the value of the tongue information is larger than a second threshold, the setting unit changes the setting of the first period to a third period longer than the first period, and the second period The electronic wind instrument according to claim 3, wherein at least one of a fourth period longer than the second period is changed.
<Claim 5>
When it is determined that a key has been operated for each of the first periods within a second period including at least one first period, based on a signal supplied from the outside, the first A determination unit that determines to change at least one of a period and the second period;
A key operation confirmation device comprising:
<Claim 6>
6. The key operation according to claim 5, wherein the signal is a signal based on at least one of tongue information indicating presence / absence of tongue contact with a lead and breath information indicating a state of a breath to be blown. Deterministic device.
<Claim 7>
Electronic musical instrument control method comprising: a plurality of keys operated to determine a pitch; a breath state detection unit that detects a state of a breath to be blown; and a musical sound instruction unit that instructs a sound source to generate a musical sound Because
Based on the breath information obtained from the breath state detection unit when it is determined that the key is operated for each of the first periods within a second period including at least one first period. Making a decision to change at least one of the first period and the second period;
A method for controlling an electronic musical instrument comprising:
<Claim 8>
A control method for an electronic musical instrument comprising a tongue detection unit for detecting presence or absence of tongue contact with a lead,
The electronic musical instrument according to claim 7, wherein the step of changing at least one of the first period and the second period is performed based on tongue information obtained from the tongue detection unit. Control method.
<Claim 9>
A control unit for an electronic musical instrument comprising a plurality of keys operated to determine a pitch, a breath state detection unit for detecting a breath state to be blown, and a musical sound instruction unit for instructing the sound source to generate a musical sound In addition,
Based on the breath information obtained from the breath state detection unit when it is determined that the key is operated for each of the first periods within a second period including at least one first period. A process of making a determination to change at least one of the first period and the second period;
An electronic musical instrument program characterized by realizing the above.
<Claim 10>
In the control unit of the electronic musical instrument provided with a tongue detection unit for detecting the presence or absence of contact of the tongue with the lead,
10. The electronic musical instrument according to claim 9, wherein a changing process for changing at least one of the first period and the second period is realized based on tongue information obtained from the tongue detection unit. Program.

100 Electronic Musical Instrument 100a Tube Body 1 Performance Key 2 Breath Pressure Detection Unit 3 Lip Detection Unit 4 Tann Detection Unit 5 CPU
6 ROM
7 RAM
8 Sound source 9 Sound system 9a Bus 10 Mouthpiece 10a Mouthpiece body portion 11 Lead 12 Fixing bracket 13 Opening portion P Player L Lip 40, 30-39 Electrode portion S10, S20-29 Touch sensor E1 Upper front tooth E2 Lower front tooth

Claims (10)

Multiple keys operated to determine the pitch,
A breath state detector for detecting the state of the breath being breathed;
A musical sound instruction section for instructing the sound source to generate a musical sound;
Based on the breath information obtained from the breath state detection unit when it is determined that the key is operated for each of the first periods within a second period including at least one first period. A determination unit that determines to change at least one of the first period and the second period;
An electronic wind instrument comprising:   When the value of the breath information is larger than a first threshold, changing the first period to a third period longer than the first period, and changing the second period to the second period The electronic wind instrument according to claim 1, further comprising a setting unit that changes at least one of changing to a longer fourth period. Provided with a tongue detector that detects the presence or absence of tongue contact with the lead,
3. The determination unit according to claim 1, wherein the determination unit performs determination to change at least one of the first period and the second period based on tongue information obtained from the tongue detection unit. Electronic wind instrument.   When the value of the tongue information is larger than a second threshold, the setting unit changes the setting of the first period to a third period longer than the first period, and the second period The electronic wind instrument according to claim 3, wherein at least one of a fourth period longer than the second period is changed. When it is determined that a key has been operated for each of the first periods within a second period including at least one first period, based on a signal supplied from the outside, the first A determination unit that determines to change at least one of a period and the second period;
A key operation confirmation device comprising:   6. The key operation according to claim 5, wherein the signal is a signal based on at least one of tongue information indicating presence / absence of tongue contact with a lead and breath information indicating a state of a breath to be blown. Deterministic device. Electronic musical instrument control method comprising: a plurality of keys operated to determine a pitch; a breath state detection unit that detects a state of a breath to be blown; and a musical sound instruction unit that instructs a sound source to generate a musical sound Because
Based on the breath information obtained from the breath state detection unit when it is determined that the key is operated for each of the first periods within a second period including at least one first period. Making a decision to change at least one of the first period and the second period;
A method for controlling an electronic musical instrument comprising: A control method for an electronic musical instrument comprising a tongue detection unit for detecting presence or absence of tongue contact with a lead,
The electronic musical instrument according to claim 7, wherein the step of changing at least one of the first period and the second period is performed based on tongue information obtained from the tongue detection unit. Control method. A control unit for an electronic musical instrument comprising a plurality of keys operated to determine a pitch, a breath state detection unit for detecting a breath state to be blown, and a musical sound instruction unit for instructing the sound source to generate a musical sound In addition,
Based on the breath information obtained from the breath state detection unit when it is determined that the key is operated for each of the first periods within a second period including at least one first period. A process of making a determination to change at least one of the first period and the second period;
An electronic musical instrument program characterized by realizing the above. In the control unit of the electronic musical instrument provided with a tongue detection unit for detecting the presence or absence of contact of the tongue with the lead,
10. The electronic musical instrument according to claim 9, wherein a changing process for changing at least one of the first period and the second period is realized based on tongue information obtained from the tongue detection unit. Program.

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