JPH0721713B2 - Electronic wind instrument - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic wind instrument, and more particularly to an improvement of an electronic wind instrument that gives an effect when electronically producing a musical sound.

(Prior Art) As a conventional electric wind instrument of this type, for example, the actual Kaisho 56-
The one disclosed in Japanese Patent No. 26798 was known.

In such an electronic wind instrument, the breath pressure sensor detects the pressure of the performer's breath to generate a musical tone, determines the volume of the musical tone, and specifies the pitch by a key switch.

The breath pressure sensor is arranged inside the mouthpiece attached to the tip of the tubular body. Further, the plurality of key switches are arranged on the tubular body as the controller. Further, a lead (a constituent member of a bite pressure sensor) capable of changing a bend amount is attached to the mouthpiece as a pitch bender. When the player bites the lead, the lever swings, and a change in the output value of the hall element arranged facing the magnet fixed to the other end of the lever is detected.
That is, the pitch bend information indicating the cent value corresponding to the output value of the hall element is put on a MIDI message and sent to the musical tone generating device.

Then, the pitch is designated by these switches, the timing of sound generation and the volume thereof are determined by the breath pressure sensor, and the pitch bend amount is set by the bite pressure sensor as described above. That is, a single parameter was changed only by mouth.

(Problems to be Solved by the Invention) However, in such a conventional electronic wind instrument, the setting of the bend amount in the pitch bend effect is performed only by detecting the biting of the lead by the biting pressure sensor. That is, the approach and separation of the magnet to and from the Hall element via the lead and the lever are detected by detecting the change in the output value of the Hall element. Therefore, in this case, since the mouth set the change amount within the entire change range,
It was difficult to make a subtle change.

(Means for Solving Problems) Therefore, the present invention, as shown in FIG. 1 for its entire configuration, includes a musical sound generating means 3 for electronically generating a musical sound designated by the operation of the key switch 1. In an electronic wind instrument, in an electronic wind instrument equipped with a musical tone generating means for electronically generating a musical tone designated by operating a key switch,
More than the first parameter change amount setting means 5 provided in the instrument body for designating the change amount of the musical tone parameter and operable during the performance, and the parameter change width set by the first parameter change amount setting means. Second parameter change amount setting means 7 provided on the mouthpiece and operable during performance to specify the change amount of the same parameter as the parameter set by the first parameter change amount setting means within a small change width. And a parameter change amount calculating means 9 for calculating the change amount of the parameter of the generated musical tone based on the first parameter change amount setting means and the second parameter change amount setting means, and the calculated parameter An electronic wind instrument equipped with an effect imparting means 11 for imparting an effect corresponding to the changed parameter to the generated musical tone based on the amount of change. By providing, and its object is to solve the above problems.

(Operation and Effect) In the electronic wind instrument according to the present invention, a musical sound is designated by operating the key switch 1. Then, the specified musical sound is electronically generated by the musical sound generating means 3. In this case, since a rough parameter change amount can be set by hand and only a subtle change can be made by the mouth, a subtle change can be easily made in the electronic wind instrument. For example,
When a pitch bend is added as a parameter, the pitch is slid for a musical sound having a predetermined pitch. At this time, in the present invention, the basic shift amount of the predetermined change width of the pitch bend is set by the first parameter change amount setting means 5, and the additional shift amount of the width smaller than the basic shift amount is set by the second parameter change amount. The setting means 7 sets each. Then, the parameter change amount calculation means 9
The bend amount is calculated based on these basic shift amount and additional shift amount. Therefore, the bend amount when the musical tone is generated is given by the bend amount based on the calculation result.

(Example) Hereinafter, the example of the electronic wind instrument which concerns on this invention is described based on drawing.

2 to 4 show an embodiment of the electronic wind instrument according to the present invention.

First, the configuration will be described.

In FIGS. 2 and 3, reference numeral 21 designates a plurality of key switches for designating the pitch of a musical tone. These key switches 21 are respectively arranged at predetermined portions (upper surface side at the time of performance) of the tube body 23 as in the case of the natural musical instrument.

As shown in FIG. 3, the pressure sensor 25 for detecting the pressure of the breath of the performer is a mouthpiece mounted on the tip of the tube body 23.
It is provided inside 27 as a breath pressure sensor. Therefore,
In this pressure sensor 25, the exhaled gas is piped from the mouthpiece 27.
When it is blown in through 28, the pressure of the exhaled breath is detected to generate a sounding signal, and the volume signal detected corresponding to the pressure is input to a microcomputer described later, and further to this computer. Sound generating means 29
To be sent to. The pressure sensor 25 includes, for example, a flexible plate member that is deformed according to its breath pressure, to which a pressure sensitive resistance element such as a barium titanate element or a piezo element, or a piezoelectric conversion element is fixed, or noise caused by exhalation. It is generated by using a microphone, which is detected by a microphone and converted into an electric signal.

Further, as shown in FIG. 3, an octave key 31 is provided on the surface of the tubular body 23 opposite to the key switch 21. Similarly, 33 is a program check key for changing the tone color, 35A and 35B are a pair of pitch bend levers for changing the bend amount to the high tone side or the low temperature side, and 37 is a key hold key. Further, 39 is a connection terminal of a cable 51 for connection to the power supply 50. Furthermore, a dip switch for switching various modes is provided on the surface opposite to the tubular body 23.
53, a variable resistor 55 for adjusting the window gain, window offset, pitch bend gain, pitch bend offset, etc. is also provided.

Here, the pitch bend levers 35A and 35B are for adjusting the degree of pitch bend application, and are for sliding the pitch by a predetermined shift amount (basic shift amount) to both high and low temperatures. The sliding shift amount in this case is set to have a constant width. Therefore, the pitch bend levers 35A and 35B collectively constitute first bend amount setting means for setting the basic shift amount of the pitch bend.

Further, in FIG. 3, one end of a swingable lever 43 is engaged with a lead 41 made of a plate material whose base end is fixed to the lower side of the mouthpiece 27 in a cantilever manner.
When is bitten and bends to the upper side, the lever 43 swings and the magnet 45 fixed to the other end approaches the Hall element 47. The hall element 47 faces the magnet 45 inside the tube body 23 and is arranged at a predetermined distance from the magnet 45. That is, the lead 41, the lever 43, the magnet 45, and the Hall element 47 as a whole set an additional shift amount of the pitch bend (for example, this additional shift amount can be set smaller than the basic shift amount). The second bend amount setting means is configured.

The basic shift amount and the additional shift amount respectively set by the first bend amount setting means and the second bend amount setting means are bend amount calculating means (microcomputer).
Has been entered in. Further, the bend effect imparting means (microcomputer) imparts a predetermined bend effect to the musical tone generated from the musical tone generating means 29 based on the bend amount which is the result calculated by the bend amount calculating means. Is.

The musical sound generating means 29 is composed of, for example, a synthesizer, and includes a sound source oscillating circuit, a frequency dividing circuit, various modulating circuits, a tone color forming circuit, an envelope forming circuit, a switching circuit, etc., and is selected by a single tone selecting circuit group. A single sound is given a predetermined effect by various effect applying means such as a bend effect applying means, and is produced by a sound system including an amplifier 61 and a speaker 63.

The synthesizer 29 is controlled by the microcomputer 71.

The microcomputer 71 is mainly composed of a microprocessor (MPU73), a memory (ROM75, RAM77), and an interface (I / 079).

Therefore, the interface of this microcomputer 71
At 79, a tone signal for designating a certain pitch from the key switch 21, a sounding signal from the pressure sensor 25 indicating that the exhalation pressure is not 0, and a volume signal corresponding to the pressure value are also provided. Minimum value from levers 35A and 35B ~
The basic shift amount signal within the range of 0, 0, and the maximum value, and the additional shift amount signal indicating the additional shift amount are input from the Hall element 47, respectively. Then, the pitch, the volume, the timbre to be pronounced, and the pitch bend amount at that time are calculated by the microprocessor 73 based on each of these signals, and the resulting signal is transferred from the interface 79 to the MIDI terminal 81. It is output to the synthesizer 29 via. Then, the synthesizer 29 gives a predetermined musical sound a predetermined effect, for example, a bend effect of a predetermined shift amount, and sounds it from the sound system.

The operation of the electronic wind instrument having the above configuration will be described with reference to the flowchart shown in FIG. In addition,
This flow is assumed to flow every predetermined time.

Further, in the following description, P1 to P26 represent each step of this flow.

First, in P1, the microcomputer 71 is initialized. For example, data as an initial value is stored in memory (RAM77)
Read from MPU73.

At P2, the pressure sensor 25 scans the pressure (breath pressure) to read the value p1.

Then, at P3, it is determined whether or not this pressure value p1 is zero. 0
If so, the exhalation has not been blown, so the process returns to P2.

If the value of p1 is not 0, the pitch is determined by proceeding to P4 and scanning the key switch 21.

Next, in P5, the processing is delayed by a predetermined time.

In P6, the pressure is scanned again to read the pressure value p2.

Then, at P7, the pressure value p1 at P2 and the pressure value p2 at P6 are
The change amount of the pressure value at two time points is calculated from and to determine the expiratory velocity. This speed represents the strength of the sound.

Here, in P8, the note-on signal to the MIDI terminal 81, that is, the pitch (P4) and the sound intensity (P7) determined as described above.
A sounding command signal including is output.

Next, at P9, the key switch 21 determines from the result of P4 whether or not there is any further change.

If there is no change, the performance is continued without changing the fingering, and the process proceeds to P10, scans the pressure, and further proceeds to P11.

On the other hand, if the key switch 21 has already changed, it means that the performer has been changed. Therefore, the process proceeds to P21 to perform pressure scanning.

Next, in P22, the pitch is determined by scanning the key switch 21, and the process proceeds to P23.

In P23, the sound intensity is calculated from the pressure value p3 in P21.

Then, at P24, the tone generation command signal at P8 is canceled (note off), and at P25, a new tone generation command signal (note on) is output. After this, proceed to P10.

In P11, it is determined whether or not the pressure value p2 has already changed, and if it has changed, the pressure value (volume) is output in P26, and the process returns to P9.

If it has not changed, the process proceeds directly to P12, where the output of the pitch bend levers 35A and 35B is read. This is the setting of the basic shift amount.

Then, at P13, the output of the Hall element 47 is read. This is the setting of the additional shift amount.

When proceeding to P14, it is determined whether or not each output value of the pitch bend levers 35A, 35B or the hall element 47 has changed from the initial value. If it has not changed, proceed to P17.

On the other hand, if there is a change, the process proceeds to P15, where both shift amounts are added to calculate the bend amount. The amount of bend is calculated. Needless to say, the bend amount may be calculated by subtraction, multiplication, or the like.

P16 outputs the bend amount data, which is the result of this calculation, to the synthesizer 29. As a result, the synthesizer 29 provides a pitch bend effect corresponding to this bent amount in a predetermined sound.

Further, in P17, it is determined whether the pressure value is 0, and if not, the process returns to P9. This is tongue detection.

If it is 0, it means that the sounding is finished, and the process goes to P18 to output auto-off, that is, a sounding stop command signal. As a result, the sound output from the synthesizer 29 is stopped.

As described above, according to the present invention, since the first bend amount setting means and the second bend amount setting means are provided,
In the setting of the bend amount, it is possible to set a set value in multiple stages and to finely set the bend amount.

[Brief description of drawings]

FIG. 1 is a block diagram showing an overall configuration of an electronic wind instrument according to the present invention, FIG. 2 is a block diagram showing an overall configuration of an electronic wind instrument according to an embodiment of the present invention, and FIG. FIG. 4 is a front view of an electronic wind instrument according to an example, and FIG. 4 is a flowchart of a control program according to an example. 1 ... key switch, 3 ... tone generating means, 5 ... first parameter change amount setting means, 7 ... second parameter change amount setting means, 9 ... parameter change amount calculating means, 11 ... effect Granting means.

Claims (1)

[Claims] 1. An electronic wind instrument equipped with a musical tone generating means for electronically generating a musical tone designated by operating a key switch, which is provided in a main body of a musical instrument for designating a variation amount of a musical tone parameter and can be operated during performance. And the parameter set by the first parameter change amount setting means within a change width smaller than the change width of the parameter set by the first parameter change amount setting means. Based on the second parameter change amount setting means, which is provided on the mouthpiece and can be operated at the time of playing, for specifying the change amount of the parameter of the first parameter change amount setting means and the second parameter change amount setting means. Parameter change amount calculation means for calculating the change amount of the parameter of the generated musical tone, and a parameter change amount calculation means based on the calculated change amount of the parameter. An electronic wind instrument, comprising: an effect imparting means for imparting an effect corresponding to the changed parameter to the generated musical sound.