WO2008013003A1

WO2008013003A1 - Automatic violin

Info

Publication number: WO2008013003A1
Application number: PCT/JP2007/062090
Authority: WO
Inventors: Shigeki Kobayashi; Shinji Kirihara
Original assignee: Shigeki Kobayashi; Shinji Kirihara
Priority date: 2006-07-26
Filing date: 2007-06-15
Publication date: 2008-01-31
Also published as: JP2008034998A; JP4776465B2

Abstract

A vibration part has two piezoelectric vibratory plates vibratable by a stereo sound signal and is secured in a posture supported by the bridge through a structure. A stereo sound signal is inputted into the vibration part to stereophonically vibrating the bridge through the structure. Thus, the front plate, sound post, bass-bar, back plate are systematically vibrated in the same way as the normal string vibration, and consequently, the violin can be automatically played. Therefore when a stereo sound signal is inputted into the vibration part, stereo sound source automatic performance of the violin can be easily made.

Description

Specification

Automatic violin

Technical field

[0001] The present invention belongs to a technical field in which a single violin is automatically played by a stereo audio electric signal.

Background art

[0002] Speakers that convert audio-electrical signals into sound waves are generally used by being housed in a spin box such as wood or synthetic resin. However, this configuration is generally known in the art that the loudspeaker's cone vibration induces the natural vibration of the box, and the induced vibration distorts the original sound by producing side-effect sound. In order to reduce this side-effect sound, the power of various technological innovations has been achieved so far.

[0003] Techniques using a musical instrument for a speaker box are disclosed (Patent Documents 1 and 2).

The first technique (Patent Document 1) is a player apparatus technique in which a vibrating portion of a drive coil that converts audio current into mechanical vibration and a piece of a violin instrument are connected by a rod-like member. This technology had the following problems:

(1) A force that connects a rod-like member to the vibration part of the drive coil of the speaker housed in the housing and connects its tip to the piece. In principle, the vibration part cannot vibrate because both of the vessels are fixed. Therefore, the connection with the piece required a special technique for transmitting vibration.

(2) Since the case and the instrument were separate, they were not portable.

(3) Since the case and the instrument are separate, both the drive coil and instrument piece must be installed on a desk or the like so that the upper and lower levels of the instrument pieces match, and each installation requires troublesome adjustments. It was.

(4) Due to the configuration in which the casing and the musical instrument are connected side by side, the stereo performance configuration from the same sound source was extremely troublesome.

(5) The piece of the instrument is made in a shape that transmits the vibrations of the hook attached to the upper edge to the front plate. In this technique, since the rod-shaped member is connected to the side edge of the piece, the piece does not function normally, and there is a problem in reproducing a faithful sound.

[0004] The second technique (Patent Document 2) is a spinning instrument technique that applies an external force from the electronic amplifying device to the instrument. This technique had the following problems:

(1) Since there was no specific explanation of the external force of the electronic amplifying device, it could not be reproduced.

(2) There is no specific explanation about the means for transmitting external force to the instrument. In the description of the embodiment, a transmission unit is provided at the base of the soul column, or the soul column is vibrated from the lateral direction. If a transmission part is provided at the base of the soul pillar, the transmission of vibration to the back plate is significantly hindered. Moreover, even if vibration is applied to the soul column from the side, normal longitudinal vibration cannot be transmitted to the front and back plates.

(3) The means to apply the external force of this technology to the violin cannot be attached to the ready-made violin.

[0005] Recently, a number of techniques using a piezoelectric vibrating body for a vibrating portion of a speaker have been disclosed (for example, Patent Document 3). In this technique, for example, the center portion of a bimorph type piezoelectric ceramic piezoelectric diaphragm is attached to an acoustic diaphragm via a support member, and a through hole is provided in the center of the piezoelectric diaphragm to pass through the support member. In this technology, the acoustic diaphragm mechanically vibrates to generate air vibrations and functions as a sounding body. In this technology, a piezoelectric diaphragm and an acoustic diaphragm are combined to form a speaker. In addition, a product that does not include the above-described acoustic diaphragm, has a suction plate or the like as a support member, and uses an arbitrary object such as a desk or a guitar as an acoustic diaphragm has appeared on the market.

[0006] When this piezoelectric diaphragm with a suction plate is attached to a violin body, and the violin is used as a sounding body, it produces a significantly distorted sound. In particular, when two piezoelectric diaphragms, each corresponding to a force S stereo RL audio signal, are affixed to the violin torso, it becomes more difficult to hear and a harsh distortion sound is emitted. The cause is due to the structural characteristics of the violin instrument. In a violin genus instrument, a piece is excited by the vibration of a spear that is rubbed with a bow, and the piece transmits vibration to the front plate to vibrate the front plate, and also transmits vibration to the back plate through the soul column. Therefore, if the front and back plates are directly vibrated by the piezoelectric diaphragm, the systematic sounding structure of the violin will not function and mutual interference and cancellation will occur. Violin genus In addition to the structural elements described above, Riki also plays a major role in the musical instrument. Because of these special structures, it is an absolute requirement to excite the pieces in order to make violin genius instruments sound well (Non-patent Document 1).

Patent Document 1: Japanese Patent Laid-Open No. 9-134168

Patent Document 2: Japanese Patent Laid-Open No. 11-122687

Patent Document 3: Japanese Patent Laid-Open No. 2000-253492

Non-Patent Document 1: C. M. Hutchins, "Violin Acoustics", Science, December 1981 Disclosure of Invention

Problems to be solved by the invention

[0007] The problem to be solved is that it is difficult to perform installation adjustment with portability and cannot be played with a violin stereo sound source that is faithful to the original sound.

Means for solving the problem

[0008] In order to solve the above-described problem, the automatic violin according to claim 1 of the present invention is an automatic violin in which one violin performs with a stereo sound source, and vibrates in accordance with a stereo R audio signal. Disc-shaped R piezoelectric diaphragm and stereo L Vibrates according to audio signal A rod-shaped structure that penetrates and fixes the center of the disk-shaped L piezoelectric diaphragm in a skewer is attached and detached by a clip provided at the tip. By virtue of the configuration that is fixed to the upper edge of the violin piece, the piece is excited by the mechanical vibration of each of the R piezoelectric diaphragm and the L piezoelectric diaphragm and played by a stereo sound source.

The automatic violin according to claim 2 of the present invention is an automatic violin that performs with a single violin-powered stereo sound source, one end having two branched ends, and each end having a stereo R The other end of the structure that fixes the central part of the disc-shaped R piezoelectric diaphragm that vibrates in response to the audio signal and the central part of the disc-shaped L piezoelectric diaphragm that vibrates in response to the audio signal A stereo sound source that excites the piece simultaneously with the mechanical vibration of the R piezoelectric diaphragm and the L piezoelectric diaphragm, with a structure that is fixed to the upper edge of the valine piece by a clip part provided at the tip. It is characterized by performing by. The invention's effect In the automatic violin of the present invention, two piezoelectric diaphragms that vibrate in response to stereo audio electric signals are fixed to the upper edge of the piece, so that an automatic performance with a stereo sound source faithful to the original sound can be performed with one violin. There is an advantage that it can be attached and detached easily and is highly portable.

Brief Description of Drawings

FIG. 1 is an explanatory view showing a configuration of an automatic violin and a configuration of a vibrating part and a structure. (Example 1)

[FIG. 2] FIG. 2 is an explanatory view showing a configuration of a vibrating part and a structure attached to an automatic violin. (Example 2)

Explanation of symbols

[0011] 1 Vibration part

2 Piezoelectric diaphragm

3 Structure

4 絃

5 pieces

6 Torso

BEST MODE FOR CARRYING OUT THE INVENTION

[0012] With the aim of being able to perform automatically with a stereo sound source that is faithful to the original sound with one violin, easy to attach and detach, and highly portable, two piezoelectric diaphragms for stereo are connected via the structure. This is realized by a structure that is detachably fixed to the upper edge of the frame.

Example 1

FIG. 1 is a diagram for explaining a first embodiment of an automatic violin according to the present invention, in which A is an overall cross-sectional view, and B is a side view of a vibrating part and a structure. In the figure, 1 is a vibration part, 2 is a piezoelectric diaphragm, 2-1 is a stereo R diaphragm, 2-2 is a stereo L diaphragm, 2-3 is a stereo R audio signal line, and 2-4 is a stereo L sound. Signal line. In addition, 3 is a structure that transmits mechanical vibration and also fixes the vibration part 1 to the piece, 3-1 is a fixed shaft that penetrates and fixes the piezoelectric diaphragms 2-1 and 2-2, and 3-2 is vibration. The transmission shaft that transmits the vibrations of the plates 2-1 and 2-2, 3-3 is the clip that sandwiches the top edge of the piece, 3-4 is the screw that tightens the clip, and 3-5 is the side of the piece It is a slit. In addition, 4 is four spears 4-1, 4-2, 4-3, 4-4 stretched on the piece. 5 is a piece, and 5-1 and 5-2 are legs that contact the front plate. 6 is the body, 6-1 is the front plate, 6-2 is the side plate, 6-3 is the back plate, 6-4 is the f hole, 6-5 is the soul pillar, and 6-6 is the power wood.

[0014] The function of the first embodiment will be described below. As shown in FIG. 1A, the structure 3 fixes the vibrating part 1 to the upper edge of the violin piece. As a result, the piezoelectric diaphragms 2-1 and 2-2 of the vibration part 1 will vibrate due to the stereo audio signals from the audio signal lines 2-3 and 2-4. The piezoelectric diaphragms 2-1 and 2-2 themselves vibrate. This vibration causes the structure 3 to vibrate, and the structure 3 excites the piece and excites the piece in exactly the same way as the occasional vibration, so that the violin is played correctly by the vibration of the vibration part 1.

[0015] In this embodiment, since the vibration part 1 and the structure 3 are integrated, the upper edge part of the piece is sandwiched between the clip parts 3-3 and the fixing screws 3-4 are tightened to make it extremely easy to form the piece. It can be installed and easily removed, so it can be set up immediately and completed anywhere.

Next, the principle and effect of stereo sound source performance with one violin will be described. Normally, stereo sound sources are played back by generating directional air vibrations from left and right speakers or wearing headphone speakers in both ears. These are methods that generate a three-dimensional effect in the brain by listening to sounds with left and right forces that are slightly different in phase and volume. Even a solo sound source such as a violin or a piano, the stereo system is very common for sound collection or recording, and these sound sources are also reproduced by a stereo device and exhibit a sense of body effect that cannot be obtained by monaural reproduction.

On the other hand, in the present invention, in view of the fact that a violin genus instrument can play multiple sounds with multiple rubs, a stereo sound source performance with one instrument is realized by exciting the piece with a stereo RL audio signal. is doing. The principle is that the violin produces RL sound in response to both RL audio signals at the same time, so that a three-dimensional effect is generated in the brain when listening to one stereo sound source performance.

Example 2

Next, a second embodiment of the automatic violin of the present invention will be described with reference to FIGS. 2A is a perspective view, and B is a side view. In FIG. 2A, 1 is a vibrating part, 2 is a piezoelectric diaphragm, 2 —1 is stereo R diaphragm, 2-2 is stereo L diaphragm, 2-3 is stereo R audio signal line,

2-4 is a stereo L audio signal line, and the piezoelectric diaphragms 2-1 and 2-2 are fixed to a common structure 3, respectively.

[0018] Each part of the structure 3 is a transmission shaft for fixing the stereo R diaphragm of 2-1 to 2-1 and a transmission shaft for fixing the stereo L diaphragm of 2-2. These shafts are fixed to the mounting base 3-3. The mounting base 3-3 is provided with a clip part 1 of 3-4 and a clip part 2 of 3-5, and a piece (Fig. 1) 5) Fixed to the upper edge.

[0019] FIG. 2B shows the fastening operation to the piece. When tightening the tightening screws 3-6, the upper arm of the clip part 2 (3-5) is pushed down, and the lower arm that hangs at a right angle attaches the upper edge part 4 of the piece to the clip part 1 (

3- 4) Tighten it between! /!

[0020] As in the first embodiment, this embodiment is a form that enables a stereo sound source performance of an audio signal RL from a stereo sound source. Since the principle and effect of a stereo sound source performance with one violin is exactly the same as in Example 1, the explanation is omitted here.

[0021] In each of Examples 1 and 2 described above, a stereo sound source performance is realized by two piezoelectric diaphragms. However, if one piezoelectric diaphragm is fixed, monaural performance can be easily performed. Needless to say, it will be realized.

[0022] If two violins equipped with one piezoelectric diaphragm are prepared and played with R and L of the stereo audio signal, separate stereo performances can be easily performed. .

On the other hand, for example, if a plurality of piezoelectric diaphragms of Example 1 are used, it is possible to perform multiple sound recordings of multiple sound sources or multiple recordings using the multiple sounding characteristics of the violin described above.

[0024] Furthermore, it is also possible to perform a wide-range performance using a high-frequency range musical instrument (for example, violin) or a low-frequency range musical instrument (for example, a mouthpiece) that is equipped with the above-described one piezoelectric diaphragm. Of course.

Industrial applicability

[0025] By fixing two piezoelectric diaphragms corresponding to stereo audio signals to the violine piece, it is easy to set up anywhere and automatically perform stereo sound source performance. Applicable to violin.

Claims

The scope of the claims

[1] An automatic violin in which a single violin performs with a stereo sound source, a disc-shaped R piezoelectric diaphragm that vibrates in response to a stereo R audio signal and a circle that vibrates in response to a stereo L audio signal The rod-shaped structure that penetrates and fixes the center of the plate-shaped L piezoelectric diaphragm to the skewer is fixed to the upper edge of the violin piece by means of a clip provided at the tip. An automatic violin that uses a stereo sound source to excite the pieces simultaneously with each mechanical vibration of the L piezoelectric diaphragm.

[2] An automatic violin in which a single violin performs with a stereo sound source, and has a disc-shaped R that has one branching end, and each end vibrates in response to a stereo R audio signal. The other end of the structure that fixes the center of the piezoelectric diaphragm and the center of the disk-shaped L piezoelectric diaphragm that vibrates according to the stereo L audio signal can be attached and detached by the clip on the tip. An automatic violin that uses a stereo sound source to excite the pieces simultaneously with the mechanical vibrations of the R and L piezoelectric diaphragms, with a configuration fixed to the top edge of the violin piece.