JPH0311398A - Breath controller for electronic musical instrument - Google Patents

Abstract

PURPOSE:To control plural musical sound control parameters by providing a breath pressure sensor which detects the pressure of breath blown in from a mouth piece part and an embouchure sensor which detects the embouchure to the mouth piece part. CONSTITUTION:A box type main body case 11 has a lower case 12 and an upper case 13 fitted to each other. A mouth piece part 14 projecting from the main body case 11, a breath pressure sensor 25 which detects the pressure of breath blown in from the mouth piece part 14, and an embouchure sensor 32 which detects the embouchure to the mouth piece part 14 are provided. That is, one musical sound control element is controlled in accordance with the pressure of breath; and with respect to the embouchure sensor, the other musical sound control parameters are controlled in accordance with the extent of biting to the mouth piece. Thus, plural musical sound control parameters are controlled.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention is applicable to press controllers used in electronic keyboard instruments, etc., in addition to breath pressure sensors that detect the pressure of exhaled air blown in from a mouthpiece. Detecting the amount of biting when a piece is bitten (Prior art) As a conventional press controller for an electronic musical instrument, one disclosed in, for example, Japanese Utility Model Publication No. 63-28745 is known.

This device had a diaphragm placed inside the case, and the diaphragm was deformed by the pressure of exhaled air blown through the mouthpiece. The sensor leaf is elastically deformed in accordance with the deformation of the diaphragm. The strain detection element generates an electric signal depending on the amount of deformation of the sensor leaf.

This press controller adds, for example, information such as pitch bend to the note information specified by the keyboard. By using this press controller, you can further enrich your musical expression when playing on the keyboard.

<Problem to be solved by the invention> However, in such conventional press controllers, only the exhalation pressure is detected and one musical tone control element is assigned to this exhalation pressure. There was a problem in that it was not possible to control musical tone control elements, for example, it was not possible to apply vibrato or slur.

Therefore, an object of the present invention is to provide a press controller that can control a plurality of tone control parameters.

<Means for Solving the Problems> The present invention includes a box-shaped main body case, a mouthpiece portion protruding from the main body case, and a breath pressure sensor that detects the pressure of exhaled air blown from the mouthpiece portion. and an embouchure sensor that detects embouchure with respect to the mouthpiece portion.

<Function> In the press controller for an electronic musical instrument according to the present invention, the pressure of exhaled air blown from the mouthpiece portion is detected by the breath pressure sensor. One musical tone control element is controlled according to this breath pressure. For example, tone,
It controls the volume, etc.

Here, when the mouthpiece part is bitten by the embouchure sensor, for example, the embouchure sensor detects the amount of biting. Other musical tone control parameters, such as pitch bend, etc., are controlled in accordance with this amount of bite. Note that the embouchure sensor may be configured to detect, for example, the condition of the player's tongue.

<Example> Embodiments of the present invention will be described below with reference to the drawings.

1 to 4 show an embodiment of a press controller for an electronic musical instrument according to the present invention.

In these figures, reference numeral 11 denotes a box-shaped main body case, which is composed of a lower case 12 and an upper case 13 that are fitted together.

A space 11A is formed inside the main body case 11. At the same time, a mouthpiece 14 is formed on one side of the main body case 11 and projects from the main body case 11 in a beak shape (see FIG. 3).

The mouthpiece 14 is composed of a protruding portion 13A of the upper case 13 and a lead portion 16 of the lower case 12. The lead portion 15 can move (bend) in the direction of the arrow in the figure with respect to the protruding portion 13A. This corresponds to the biting of the lead portion 15.

This mouthpiece 140 passage 14A communicates with the internal space 11A of the main body case 11. Along with this passage 1
4A and the space 11A, a cantilever 17 is provided so as to be movable up and down in the direction indicated by the arrow in the figure using the pin 16 as a fulcrum.

The initial state of the cantilever 17 is as shown in FIG.
One end thereof is located in the passage 14A of the mouthpiece 14, and the other end is located in the internal space 11A of the main body case 11.

A magnet 18 is fixed to the other end of the cantilever 17. A Hall element I9 is arranged opposite to the magnet 18, and this Hall element 19 is connected to the printed circuit board 20.
is fixed.

Reference numeral 21 denotes a rubber gasket into which the intermediate portion of the cantilever 17 is inserted, and partitions the internal space 11A of the main body case 11 from the outside.

A pressure chamber 22 is separated from the main body case 11 below the rubber packing 21. This pressure chamber 22 communicates with the passage 14A of the mouthpiece 14.

Further, inside the pressure chamber 22, a substrate 24 is attached via a rubber gasket 23, and a pressure sensor (breath pressure sensor) 26 disposed on the substrate 24 is attached. The pressure sensor 25 detects the pressure of exhaled air blown into the pressure chamber 22. A drain hole 26 communicates the inside and outside of this pressure chamber 22.

Further, 27 is a cable connected to the printed circuit board 2O. 28 and 29 indicate an embouchure plug and a press plug, respectively. 30 is a cable holder.

31 is a hanging string.

Further, the cantilever 17, the magnet 18, and the Hall element 19 collectively constitute a biting amount sensor 32 that detects the biting amount of the lead portion 15. This biting amount sensor 32 is one embodiment of an embouchure sensor. Other possible embouchure sensors include a tonguing sensor.

As shown in FIG. 4, the performer hangs the press controller around his neck with the sling 31, inserts the plugs 28 and 29 into the plug holes 41 and 42 of the keyboard 40, and plays the keys 43 of the keyboard 40 with both hands. .

In this manner, during performance, the breath pressure sensor 25 detects the pressure of the player's exhalation, and the bite amount sensor 32 detects the amount of bite of the reed portion 15 by the player's teeth. Then, depending on these detected values, for example, the volume and pitch bend will change appropriately.

In the biting amount sensor 32, the lead portion 15 swings in the direction of the arrow in FIG. 1 due to biting. According to this swing, the cantilever 17 also rotates counterclockwise in the figure using the fulcrum pin 16 as a fulcrum. As a result, the magnet 18 approaches the Hall element 19, and an electrical signal is output as an embouchure signal depending on the amount of approach.

<Effects of the Invention> As described above, according to the present invention, a plurality of tone control parameters can be controlled in a press controller for an electronic musical instrument. For example, it is possible to change the volume of a specific musical tone, as well as apply vibrato or slur. This will enrich your performance expression.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing a press controller for an electronic musical instrument according to an embodiment of the present invention, FIG. 2 is a side view showing a press controller according to an embodiment, and FIG. FIG. 4 is a plan view showing such a press controller. FIG. 4 is a schematic perspective view for explaining how the press controller is used according to an embodiment. 11...Body case, 14...Mouthpiece, 25...
...Breath pressure sensor, 32...Bite amount sensor.

Claims (1)

[Scope of Claims] A box-shaped main body case, a mouthpiece portion protruding from the main body case, a breath pressure sensor for detecting the pressure of exhaled air blown from the mouthpiece portion, and a breath pressure sensor for detecting the pressure of exhaled air blown from the mouthpiece portion. A breath controller for an electronic musical instrument, comprising: an embouchure sensor that detects an embouchure.