JP2004129058A - Concert system by speaker using stringed musical instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a speaker system which provides more presence than that of music reproduced and outputted by a normal speaker system. <P>SOLUTION: Commercial or dedicated software 5 is used, and sound is generated from a violin musical instrument speaker 2 and a cello musical instrument speaker 3 through amplifiers L and R. The violin musical instrument speaker 2 and the cello musical instrument speaker 3 use a violin and a cello as an actual musical instrument, and an electro-mechanical vibration transducer is attached to the back plate of the violin and cello to transmit its vibrations to the body parts of the stringed musical instruments, thereby generating acoustic vibrations. As musical instruments other than the above musical instruments, a viola and a contrabass may be used. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a speaker-based concert system using a stringed musical instrument configured by combining an electro-mechanical vibration converter and a stringed musical instrument.
[0002]
[Prior art]
In a hotel lobby, wedding hall, museum, restaurant, or the like, music adapted to each location is often played in order to enhance the atmosphere of each location or to enhance the mood of the visitors. In this case, the music is output and reproduced by a normal speaker system, and in some cases, an instrument that is played by the music that is playing to enhance the visual effect may be installed.
[0003]
[Problems to be solved by the invention]
However, in the conventional music output and reproduced by a normal speaker system, the special presence of the musical instrument itself and the deep interest in playing the sound of the musical instrument from the musical instrument itself cannot be evoked. In addition, when installing an instrument that is playing with the music that is playing, it is possible to enhance the visual effect to some extent, but it is necessary to reproduce the sense of presence that is transmitted when the instrument is actually playing. Could not.
[0004]
The present invention has been made in view of the above problems, and has a special presence of the musical instrument itself, arousing a deep interest in the sound of the musical instrument being played from the musical instrument itself, as if a concert was actually being performed there. An object of the present invention is to provide a concert system using a speaker (hereinafter, also referred to as a musical instrument speaker) using a stringed instrument capable of reproducing a realistic sense of realism and obtaining a high performance effect.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, an invention according to a concert system using a speaker using a stringed instrument according to claim 1 forms a magnetic gap by a yoke provided with magnetic poles, and supports the yoke in a case by a damper. An electric-mechanical vibration converter in which a coil is arranged in the gap and the yoke and the case are relatively displaceable; and a speaker that enables sound reproduction by attaching the electro-mechanical vibration converter to a stringed instrument. And a speaker system using a stringed instrument including a recording medium on which an audio signal input to the electro-mechanical vibration converter is recorded, wherein the electro-mechanical vibration converter is located on the back of the stringed instrument. It is characterized by being mounted on a plate.
[0006]
According to a second aspect of the present invention, in the concert system using a speaker using the stringed instrument according to the first aspect, the electro-mechanical vibration converter is mounted on a back plate of the stringed instrument near a position of a soul pole. It is characterized by having.
[0007]
According to a third aspect of the present invention, in the concert system using a speaker using the stringed instrument according to the first aspect, a violin and a cello are used as the stringed instrument, and the recording medium records a violin performance on a left channel. And a multi-monaural dedicated recording medium in which a cello performance is recorded on the right channel, and an audio signal corresponding to the violin performance recorded on the dedicated recording medium is an electric signal attached to the violin. An audio signal input to the mechanical vibration converter and corresponding to the performance of the cello is input to an electro-mechanical vibration converter attached to the cello.
[0008]
The invention according to claim 4 is characterized in that the stringed instrument uses a first violin, a second violin, a viola, and a cello, and the recording medium includes a first violin performance, a second violin performance, and a viola performance. An audio signal corresponding to the performance of the first violin recorded on the dedicated DVD recording medium is a dedicated DVD recording medium on which a multi-monaural recorded multi-channel recording of a cello performance is recorded on each channel. The audio signal corresponding to the performance of the second violin, which is input to the electro-mechanical vibration converter attached to the first violin, is input to the electro-mechanical vibration converter attached to the second violin, and An audio signal corresponding to the performance of the viola is input to an electro-mechanical vibration converter attached to the viola, and Audio signal corresponding to the performance of the furnace, electric attached to the cello - and wherein the input to the mechanical vibration transducer.
[0009]
According to a fifth aspect of the present invention, a violin and a cello are used for the stringed musical instrument, and the recording medium mainly records the performances of the first violin and the second violin on the left channel, and mainly the viola and the cello on the right channel. Is recorded on the recording medium, and audio signals corresponding to the performance of the first violin and the second violin recorded on the recording medium are electro-mechanical vibrations attached to the violin. An audio signal input to the converter and corresponding to the performance of the viola and the cello is input to an electro-mechanical vibration converter attached to the cello.
[0010]
According to a sixth aspect of the present invention, in a concert system using a loudspeaker using the stringed instrument according to the fourth aspect, a bass range of the audio signal recorded on the left channel is extracted by a low-pass filter, and the audio of the bass range is extracted. A signal is input to an electro-mechanical vibration converter attached to the cello.
[0011]
According to the present invention, an electro-mechanical vibration converter is attached to an actual violin, cello, viola, or other stringed instrument, and an audio signal is input to the electro-mechanical vibration converter and vibrated, so that sound is emitted from the body of the stringed instrument. By generating vibration, it is possible to reproduce a realistic sense of presence as if the musical instrument is actually being played in front of the audience.
Hereinafter, a musical instrument speaker (for example, a violin musical instrument speaker, a cello musical instrument speaker) in which an electro-mechanical vibration converter is attached to a stringed instrument to enable sound reproduction is referred to. Note that the medium in the present invention refers to a recording medium such as a CD or DVD on which an audio signal is recorded (recorded).
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a concert system using a speaker using a stringed instrument according to the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram showing one form of the concert system. In this case, the concert system 1 using speakers using stringed instruments each having an electro-mechanical vibration converter (described later) attached to the back plate is composed of a musical instrument speaker (in this embodiment, a violin musical instrument speaker 2 and a cello musical instrument speaker 3). ), An audio unit 4 for reproducing and outputting an audio signal input to the electro-mechanical vibration converter, and a recording medium 5 on which the audio signal is recorded (recorded).
In the above configuration, the recording medium 5 is reproduced by the audio unit 4, and the audio signal output from the left channel L of the audio unit 4 is input to the electro-mechanical vibration converter attached to the violin musical instrument speaker 2, and The audio signal output from the right channel R is input to an electro-mechanical vibration converter attached to the cello musical instrument speaker 3, and these audio signals are reproduced by the violin musical instrument speaker 2a and the cello musical instrument speaker 3a.
[0013]
Next, the reason for generating the sound of the speaker of the present invention will be described.
FIG. 3 shows an electromechanical vibration converter used in the present invention, which is related to the invention of the present applicant (the details are shown in Japanese Patent Application No. 2002-256585). Other types of electro-mechanical vibration transducers used in the present invention may be used. In FIG. 3, the electro-mechanical vibration converter 10 is schematically composed of a case including an upper frame 20 and a lower frame 40, and a damper unit 30 holding a magnetic circuit housed in the case.
The upper frame 20 has a dish shape, and a circular opening 50 is formed at the center thereof. Further, screw holes 20a, 20b, 20c are formed in the outer peripheral portion. The lower frame 40 has a substantially dish shape having a two-stage structure, and has screw hole portions 40a, 40b, and 40c formed on an outer peripheral portion thereof. In the center of the bottom of the lower frame 40, a plurality of annular dampers 60 having different diameters and arranged concentrically are formed integrally with the lower frame 40. Further, a lead le for transmitting an electric signal to a magnetic circuit in the case extends from the bottom of the outer peripheral edge. The damper section 30 includes a plurality of annular dampers 80a, 80b, 80c and a yoke section 90 having magnetic poles, and screw holes 30a, 30b, 30c are formed on the outer periphery of the outer annular damper. The damper part 30 is installed so as to fit into the lower frame 40, and the upper part is covered by the upper frame 20. Each member (upper frame 20, damper section 30, lower frame 40) is arranged such that the screw holes 20a, 30a and 40a, 20b and 30b and 40b, 20c and 30c and 40c overlap at the same upper position. It is fixed by screws inserted from the frame 20 side.
[0014]
As shown in FIG. 5, the electro-mechanical vibration converter as described above uses the lower frame 40 as a screw for fixing the upper frame 20, the damper unit 30, and the lower frame 40 to the back plate of the actual violin or cello. Installed with.
The specific mounting position of the electro-mechanical vibration converter will be described below.
FIG. 4 illustrates the structure of a violin. As is well known, a violin (a violin and a contrabass is also an instrument included in the so-called violin genus as a bowed string instrument together with a viola and a contrabass, so the violin will be described below as a representative). As shown in FIG. 4, the violin V generally includes a body A, a rod B, a bridge C, and a string D stretched between a bobbin F and an arrest plate E. As shown in FIGS. 4 (a) and 4 (b), the body A is composed of a front plate A1, a back plate A2, and a horizontal plate A3, and a piece C for supporting a string D is attached to the front plate A1. The part is fixed with a power tree G, and the other end is supported by a soul post H.
[0015]
The electro-mechanical vibration converter 10 is mounted on the front surface of the back plate A2 of the violin, and its position is mounted near the pillar. An electric signal is transmitted from the lead wire le to the coil, and the yoke portion 90 supported by the case via the dampers 80a, 80b, and 80c by the magnetic interference generated between the magnetic force generated in the coil and the magnetic force of the magnetic pole. Are relatively changed to generate vibration. This vibration is transmitted to the back plate A2, and using the back plate A2 as a diaphragm, the body A performs the same operation as the speaker box to generate acoustic vibration. In FIG. 5 (b), two electro-mechanical vibration converters are attached to the cello, but the number of attachments may be one or more.
[0016]
Next, creation of media as a sound source for efficiently operating the concert system of the present invention will be described.
It is better to use dedicated software in order to fully extract the features of the musical instrument speaker, but for its creation, as shown in FIG. That is, the microphone M is set close to the musical instrument without recording much of the sound of the hall, reverberation, etc., and the sound of the sound-producing section of the musical instrument is mixed with a preamplifier P. The sound is recorded by the recorder R via the AMP, and supplied on a medium such as a CD. In this case, unlike a normal stereo recording in which a “sound field” is recorded, a complete “multi-monaural” recording format is preferable. For example, in the case of a violin and cello duo, the violin should be on the left channel and the cello should be on the right channel, acoustically isolated between the two instruments and recorded completely independently, then recorded on a CD or other Record on a medium.
[0017]
Using the special software recorded in this way, the sound of the violin is played on a "speaker with an electro-mechanical vibration converter attached to the violin", and the sound of the cello is "installed with an electro-mechanical vibration converter on the cello" Play with a speaker. " By doing so, the sound of the violin sounds from the violin itself, and the sound of the cello sounds from the cello itself. .
Visually, if the violin or cello is set in a special holder and shown to the audience, the effect is doubled in combination with the display effect. In addition, an additional effect can be provided by emitting an LED or illumination light in accordance with the intensity of sound, or by decorating a photograph or picture with an appropriate atmosphere as a display background.
[0018]
Also, even when using commercially available software instead of dedicated software, it is possible to obtain substantially the same effect as when using dedicated software. That is, in many cases, a string quartet on a commercially available CD is recorded in stereo in a sound field such that the first violin and the second violin are recorded on the L channel and the viola and cello are arranged on the R channel. When such a CD is reproduced by the concert system of the present invention, the first violin and the second violin are mainly reproduced from the L-channel “violin musical instrument speaker”, and the R-channel “cello musical instrument speaker” is reproduced. The sound of viola and cello is mainly reproduced in a stereo sound field, and is compatible with commercially available software.
[0019]
When the concert system of the present invention is applied to a string quartet, the second violin and viola may be added in the same manner as described above. However, since the number of recording channels increases, it is preferable that the recording medium is a DVD which can provide more channels than a CD.
[0020]
In the case of reproducing by the present concert system, a 3D system as shown in FIG. 6 may be modified and applied. In the 3D system, a reproduction signal is input to each of the L channel and the R channel via an amplifier, and a low pass filter LPF and an amplifier SWAMP are connected to a subwoofer via a mixing circuit MIX. I have.
[0021]
When the music is reproduced by the concert system of the present invention, a bass range may be insufficient as a range of a musical instrument speaker by violin. To solve this, a system as shown in FIG. 7 may be used. Here, a system similar to that shown in FIG. 6 is shown. In this case, among the two electro-mechanical vibration converters 101 and 102 attached to the cello musical instrument speaker 3, the electro-mechanical vibration converter 101 converts a signal from the L channel into a low-pass filter (low-pass filter) LPF. Via the amplifier SW. Connected to the AMP, the electro-mechanical vibration transducer 102 is connected to the R channel via an amplifier.
[0022]
FIG. 8 shows a streamlined version of the system of FIG. 7, in which the input of the L channel is connected to a preamplifier MIX connected to the R channel via a low-pass filter LPF, and to the cello instrument speaker. is there.
[0023]
FIG. 9 shows a system in which equalizers EQ1 and EQ2 are further connected to the L channel and the R channel, respectively, in the system of FIG. By doing so, better sound quality can be obtained.
【The invention's effect】
By installing the concert system using speakers using actual stringed musical instruments according to the present invention in hotel lobbies, wedding halls, museums, restaurants and other places as appropriate, a high performance effect can be exhibited. Although the music reproduction by the current ordinary speaker system is too common to obtain a special effect, the system according to the present invention enables a special performance effect because the music is played from the musical instrument itself. This is due to the special presence of the musical instrument itself and the interest that the musical instrument itself can play. Therefore, it is possible to reproduce a realistic presence as if a concert is being performed on the spot, and to obtain a high effect.
[Brief description of the drawings]
FIG. 1 is a diagram showing a conceptual playing diagram of a concert system using a stringed musical instrument according to the present invention.
FIG. 2 is a diagram conceptually showing creation of dedicated software used for the concert system of the present invention.
FIG. 3 is a diagram showing an example of an electro-mechanical vibration converter attached to a speaker used in a concert system of the present invention.
4A and 4B are structural views of a conventional violin used as a musical instrument speaker of the present invention, wherein FIG. 4A is an external view and FIG. 4B is a cross-sectional view as viewed from a stop plate.
5A and 5B are diagrams showing a case where an electro-mechanical vibration converter is attached to a stringed instrument, wherein FIG. 5A is a diagram showing an example where the transducer is attached to a violin back plate, and FIG. FIG.
FIG. 6 is an explanatory diagram of a case where a concert system of the present invention is reproduced by a conventional 3D system.
FIG. 7 is a diagram showing a case where the system of FIG. 6 is applied to a concert system of the present invention.
FIG. 8 is a diagram showing a modification of the one shown in FIG. 7;
FIG. 9 is a view showing a modification of the one shown in FIG. 8;
[Explanation of symbols]
2 Violin as musical instrument speaker 3 Cello as musical instrument speaker 4 Audio unit 5 Dedicated software

Claims (6)

A magnetic gap is formed by a yoke provided with magnetic poles, the yoke is supported in a case by a damper, and a coil is arranged in the gap, so that the yoke and the case are relatively displaceable. A converter,
A speaker that enables sound reproduction by attaching the electro-mechanical vibration converter to a stringed instrument;
A concert system using one or more of the speakers, comprising: a recording medium on which an audio signal input to the electro-mechanical vibration converter is recorded;
The concert system using a speaker using a stringed instrument, wherein the electro-mechanical vibration converter is mounted on a back plate of the stringed instrument. The concert system using a speaker using a stringed instrument according to claim 1, wherein the electro-mechanical vibration converter is mounted on a back plate of the stringed instrument near a position of a soul pole. The stringed instrument uses a violin and a cello, and the recording medium is a multi-monaural recording dedicated recording medium in which a violin performance is recorded on a left channel and a cello performance is recorded on a right channel. An audio signal corresponding to the performance of the violin recorded on a recording medium is input to an electro-mechanical vibration converter attached to the violin, and an audio signal corresponding to the performance of the cello is attached to the cello. The concert system using a speaker using a stringed musical instrument according to claim 1, wherein the concert is input to an electro-mechanical vibration converter. The stringed instrument uses a first violin, a second violin, a viola and a cello, and the recording medium records a performance of a first violin, a performance of a second violin, a performance of a viola, and a performance of a cello on respective channels. And a multi-monaural recorded multi-channel dedicated DVD recording medium. An audio signal corresponding to the performance of the first violin recorded on the dedicated DVD recording medium is an electric signal attached to the first violin. The audio signal corresponding to the performance of the second violin is input to the mechanical vibration converter, and the audio signal corresponding to the performance of the viola is input to the electro-mechanical vibration converter attached to the second violin; Is input to the electro-mechanical vibration converter attached to the viola and corresponds to the performance of the cello. O signal, electrical mounted on the cello - Concert system by the speaker using a stringed musical instrument according to claim 1, wherein the input to the mechanical vibration transducer. The stringed instrument uses a violin and a cello, and the recording medium is a stereo recording in which the left channel mainly records the performances of the first violin and the second violin, and the right channel mainly records the performances of the viola and the cello. An audio signal corresponding to the performance of the first violin and the second violin recorded on the recording medium is input to an electro-mechanical vibration converter attached to the violin, and the viola and 2. The concert system according to claim 1, wherein an audio signal corresponding to the performance of the cello is input to an electro-mechanical vibration converter attached to the cello. 5. A concert system using a speaker using a stringed musical instrument according to claim 4, wherein a bass range of an audio signal recorded on the left channel is extracted by a low-pass filter, and the bass-range audio signal is supplied to the cello. A speaker-based concert system using stringed instruments, which is input to a mechanical vibration transducer.

Images