Musical instrument sound amplification device

Abstract

The present invention relates to a musical instrument sound amplification device, comprising: a trumpet-shaped trough body and a bowl-shaped annular base; the convex block on the bottom surface of the trumpet-shaped trough body is a shallow concave portion fixedly mounted on the bottom of the bowl-shaped annular base; and a hollow annular cavity is formed relative to the interior of the musical instrument sound amplification device; wherein an annular sound outlet is provided between the opening of the bowl-shaped annular base and the edge of the trumpet-shaped trough body. The present invention mainly utilizes the audio vibration effect transmitted to the musical instrument sound amplification device by the tail pin when the cello is played, and the reflection and diffusion effect of the piano sound through the special geometric structure space of the hollow annular cavity inside the musical instrument sound amplification device, so as to greatly increase the loudness of the piano sound and at the same time diffuse it to the performance space in a 360-degree direction through the annular sound outlet, thereby forming a stereo surround sound field centered on the performer.

Description

Technical Field

[0001] The present invention relates to a musical instrument sound amplifying device, and more particularly to a musical instrument sound amplifying device which can increase the volume of a cello sound and generate a stereo surround sound field when the cello is played. Background Art

[0002] The sound box used for a typical cello is actually a hollow space structure, and the audio vibration effect produced by the cello can only be reflected by the grille around the box to increase the loudness of the piano sound; however, the effect of increasing the loudness of the piano sound by only using the plane structure of the grille to reflect and amplify the piano sound is limited. Furthermore, the sound box of the typical style only has a few sound holes dug around the box, so the piano sound emitted by the box has a specific directionality and cannot provide a three-dimensional surround sound field effect. Summary of the invention

[0003] The present invention mainly utilizes the audio vibration effect transmitted from the tail pin to the musical instrument sound amplification device during cello playing, and the reflection and diffusion effect of the piano sound through the special geometric structure space of the hollow annular cavity inside the musical instrument sound amplification device, so as to greatly increase the piano sound volume and diffuse it to the performance space through the annular sound outlet in a 360-degree direction, thereby forming a stereo surround sound field centered on the performer.

[0004] A musical instrument sound amplification device comprises: a trumpet-shaped trough body and a bowl-shaped annular base; the bottom surface of the trumpet-shaped trough body is provided with a convex block; the bottom of the bowl-shaped annular base is provided with a shallow concave portion. The convex block on the bottom surface of the trumpet-shaped trough body is fixedly mounted on the shallow concave portion at the bottom of the bowl-shaped annular base; and relative to the interior of the musical instrument sound amplification device, a hollow annular cavity is formed; wherein an annular sound outlet hole is provided between the opening of the bowl-shaped annular base and the edge of the trumpet-shaped trough body.

[0005] Two specific embodiments are described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a perspective view of the present invention.

[0007] Figure 2 It is a three-dimensional diagram of a trumpet-shaped trough.

[0008] Figure 3 It is a three-dimensional image of the bowl-shaped annular base.

[0009] Figure 4 It is an exploded view of the components of the present invention.

[0010] Figure 5 It is an exploded cross-sectional view of the components of the present invention.

[0011] Figure 6 It is a cross-sectional view of the present invention.

[0012] Figure 7 It is a usage state diagram of the present invention.

[0013] Figure 8 It is a perspective view of a second embodiment of the present invention.

[0014] Fig. 9 1 is an exploded view of the components of the second embodiment of the present invention.

[0015] Fig.10 2 is a component exploded view of the second embodiment of the present invention.

[0016] Fig.11 is a cross-sectional view of a second embodiment of the present invention.

[0017] Description of Reference Numerals

[0018] 1Musical instrument sound amplification device

[0019] 2 trumpet-shaped tank

[0020] 21 Bump

[0021] 3 bowl-shaped ring base

[0022] 31 shallow concave

[0023] 51 Hollow annular cavity

[0024] 52 ring sound hole

[0025] 6 Cello

[0026] 61 tail needle DETAILED DESCRIPTION

[0027] Example 1, please refer to Figures 1 to 7 ; A musical instrument sound amplifying device 1, comprising: a trumpet-shaped trough body 2 and a bowl-shaped annular base 3; the bottom surface of the trumpet-shaped trough body 2 is provided with a protrusion 21; the bottom of the bowl-shaped annular base 3 is provided with a shallow recess 31. The protrusion 21 on the bottom surface of the trumpet-shaped trough body 2 is fixedly mounted on the shallow recess 31 at the bottom of the bowl-shaped annular base 3; and a hollow annular cavity 51 is formed relative to the interior of the musical instrument sound amplifying device 1. Among them, an annular sound outlet 52 is provided between the opening of the bowl-shaped annular base 3 and the edge of the trumpet-shaped trough body 2; the inner periphery of the bowl-shaped annular base 3 is a three-dimensional annular structure with an inwardly concave curved surface. The bottom surface of the bowl-shaped annular base 3 can also be provided with an anti-slip structure to enhance the anti-slip effect of the musical instrument sound amplifying device 1 when in use. For the second embodiment of the present invention, please refer to Figures 8 to 11 .

[0028] The trumpet-shaped trough body 2 and the bowl-shaped annular base 3 of the musical instrument sound amplifying device 1 are both made of plastic; metal or wood materials may also be used as other materials; wherein, the trumpet-shaped trough body 2 and the bowl-shaped annular base 3 may also be made of different materials respectively.

[0029] The present invention can also utilize the physical properties of different media such as plastic, metal or wood materials for sound transmission, reflection and diffusion, and can select appropriate materials for the trumpet-shaped groove body 2 and the bowl-shaped ring base 3 of the musical instrument sound amplifying device 1 according to the timbre texture or audio response of different violins. The musical instrument sound amplifying device 1 can then be used to compensate, enhance or balance the performance of the high, medium or low frequency range of the violin when it is played.

[0030] When a performer wants to play the cello, he needs to hug the cello 6 between his thighs and insert the tail pin 61 below the cello 6 into the inside of the trumpet-shaped groove 2 of the musical instrument sound amplifying device 1, so that the cello 6 can be firmly placed on the ground and lean against the performer's body for playing.

[0031] The present invention mainly utilizes the audio vibration of the cello 6 transmitted to the horn-shaped slot 2 of the musical instrument sound amplifying device 1 by the tail pin 61 during the performance, thereby generating a resonance effect in the hollow annular cavity 51 inside the musical instrument sound amplifying device 1 to generate sound waves of the same frequency as the violin performance, and then reflects the sound waves through the concave three-dimensional annular surface around the inside of the bowl-shaped annular base 3 of the musical instrument sound amplifying device 1 to greatly increase the loudness of the piano sound, and at the same time diffuses the sound waves to the entire performance space in a 360-degree direction through the annular sound outlet 52, thereby forming a three-dimensional surround sound field centered on the performer. Among them, due to the three-dimensional annular structure with a concave surface around the inside of the bowl-shaped annular base 3 compared to the existing planar structure, when reflecting the violin performance sound waves generated inside the hollow annular cavity 51, a physical effect of concentrated reflection of the sound waves will be generated, thereby greatly increasing the violin performance sound waves generated inside and increasing the loudness of the piano sound by instantly diffusing them into the performance space.

[0032] Therefore, during the violin performance, the musical instrument sound amplifying device 1 can be used to transform the playing sound into a non-directional three-dimensional surround diffuse sound field, so that the listener can hear the beautiful melody and detailed changes in the timbre levels of the high, medium and low frequency ranges expressed in the clear and circumflex violin sound no matter where he sits in the concert hall or venue, which significantly improves the shortcomings of the existing sound amplifier (box) that the sound is not loud enough and can only provide sound diffusion in a specific direction.

[0033] The performer can also listen to the live performance effect more immediately and clearly through the stereo surround sound field of the instrument sound amplifying device 1, so as to effectively grasp whether the volume of the violin playing is appropriate and whether the melody is correct, and then continue to perform the corresponding performance or make immediate corrections or adjustments.

[0034] The above embodiments are only for explaining the principle and effect of the present invention, and are not intended to limit the present invention; therefore, those skilled in the art can modify and change the above embodiments without departing from the spirit of the present invention. The present invention has industrial applicability, novelty and creativity, and meets the requirements of invention patents, so an application is filed in accordance with the law.

Claims

1. A musical instrument sound amplification device, characterized in that: include: A trumpet-shaped trough body and a bowl-shaped annular base; the bottom surface of the trumpet-shaped trough body is provided with a convex block; the bottom of the bowl-shaped annular base is provided with a shallow concave portion; The protrusion on the bottom surface of the trumpet-shaped trough body is fixedly mounted on the shallow concave portion at the bottom of the bowl-shaped annular base; A hollow annular cavity is formed relative to the interior of the musical instrument sound amplifying device; wherein an annular sound outlet hole is provided between the opening of the bowl-shaped annular base and the edge of the trumpet-shaped groove body; The inner periphery of the bowl-shaped annular base is a three-dimensional annular structure with a concave curved surface.

2. The musical instrument sound amplifying device according to claim 1, characterized in that: The bottom surface of the bowl-shaped annular base may also be provided with an anti-slip structure to enhance the anti-slip effect of the musical instrument sound amplifying device when in use.

3. The musical instrument sound amplifying device according to claim 1 or 2, characterized in that: The trumpet-shaped trough body is made of plastic, metal or wood; the bowl-shaped annular base is made of plastic, metal or wood.

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