CN103281651A - Stage audio system, stage structure and stage audio system arrangement method - Google Patents
Stage audio system, stage structure and stage audio system arrangement method Download PDFInfo
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- CN103281651A CN103281651A CN201310229296XA CN201310229296A CN103281651A CN 103281651 A CN103281651 A CN 103281651A CN 201310229296X A CN201310229296X A CN 201310229296XA CN 201310229296 A CN201310229296 A CN 201310229296A CN 103281651 A CN103281651 A CN 103281651A
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Abstract
The invention relates to a stage audio system, a stage structure and a stage audio system arrangement method. The stage audio system comprises a plurality of micro linear-array speaker boxes, wherein the linear-array speaker boxes comprise long-strip high-medium frequency speaker boxes and square low-frequency speaker boxes. The long-strip high-medium frequency speaker boxes stretch to a ceiling of a stage from the ground of the stage, and are overlapped vertically to form a long-strip structure. The long-strip structure is embedded into a clearance between two colored curtains on the side wall of the stage, and the long-strip structure on the left side and the long-strip structure on the right side of the side wall of the stage are symmetrical. The low-frequency speaker boxes are symmetrically arranged behind the colored curtains on the side wall of the stage. Horizontal covering angle of output sound is wide, and vertical covering angle of the sound is narrow.
Description
Technical field
The present invention relates to sound system, relate in particular to a kind of stereo of stage system, the stage structure that is provided with this stereo of stage system and stereo of stage system layout method.
Background technology
For associative perception and the gorgeous effect that strengthens stage; satisfy spectators' enjoyment of U.S. visually; perform in a radio or TV programme wall, ceiling and the ground of the stage in the Room and can adopt a large amount of LED screens usually; the stage that has even directly extend to last row of auditorium; form a catwalk, perform in a radio or TV programme the Room and become a thoroughly stage performance space from ground to the ceiling thereby make.In such one stage that is almost 360 ° of LED screens, perform, guarantee that every famous actor can both hear clearly that foldback sound is very crucial work on a bit arbitrarily in the middle of such space.
Traditional stereo of stage foldback system typically uses full frequency band point sound source foldback audio amplifier, puts audio amplifier on stage or hangs in the stage both sides.But for the stage of such 360 ° of LED screens, traditional audio amplifier is put and can be brought following problem:
Be that put on ground or the side is hung all and can obviously be blocked the LED screen, cause serious vision to expose the false.
Even if can put also and can bring problem.Because the Point source of sound speaker sound levels is bigger usually with vertical angle of coverage, can cause with respect to ground and a large amount of sound reflection of side LED screen, influence sound articulation, also can cause the sound in stage zone inhomogeneous, namely sound pressure level is big close to the audio amplifier distance, and little away from the audio amplifier sound pressure level.
So not only cause the performer can't catch foldback sound, also can influence spectators' audiovisual sensation.
Secondly, because being positioned at the acoustics sound absorption cavity at rear, spectators zone originally, existing stage blocked by the LED screen, can't reach the acoustically effective of expection, can't clearly hear under the prerequisite of foldback sound performer itself, occur the interference of opposite echo again, therefore finally caused whole sound field environment to become more abominable.
In addition, because stage is almost covered by 360 ° of LED screens, that is to say, the ground of whole stage, all around and ceiling be luminous element, on the stage of " luminous " like this, if arrange sound system in the conventional mode, must visually seem lofty unusually, destroying also can the complete visual effect of stage.
Summary of the invention
The objective of the invention is to propose a kind of stereo of stage system, stage structure and stereo of stage system layout method, the horizontal angle of coverage of the sound of its output is wide, and vertical angle of coverage is narrow.
For achieving the above object, the invention provides following technical scheme:
A kind of stereo of stage system, it comprises some micro linear array audio amplifiers; Described linear array audio amplifier comprises high intermediate frequency audio amplifier and the foursquare low frequency audio amplifier of strip; Wherein: some described high intermediate frequency audio amplifiers extend to the stage ceiling, vertically are stacked into a rectangular structure, in the slit between two color curtains of this rectangular structure embedding stage sidewall from stage ground; The described rectangular structure on stage sidewall left side and right side is symmetrical; Some described low frequency audio amplifiers are arranged in the color backstage side of stage sidewall symmetrically.
Further, described high intermediate frequency audio amplifier also laterally embeds in two of the stage ground slits between the color curtain, and the described high intermediate frequency audio amplifier of stage ground left side of face and right side horizontally set is symmetrical.
Further, also comprise the sound absorption curtain, described sound absorption curtain is arranged on the color backstage side on stage sidewall left side and right side.
Further, the width of described rectangular structure is no more than 80mm.
The present invention also comprises a kind of stage structure, and it comprises the stereo of stage system in the various embodiments described above.
The present invention also comprises a kind of stereo of stage system layout method, and it comprises: the step that the high intermediate frequency audio amplifier of strip and the square low frequency audio amplifier of micro linear array audio amplifier are separated; Some described high intermediate frequency audio amplifiers are extended to the stage ceiling, vertically are stacked into the step of a rectangular structure from stage ground; With the step in the slit between two color curtains of described rectangular structure embedding stage sidewall; With the symmetrical step of arranging of the described rectangular structure on stage sidewall left side and right side; Some described low frequency audio amplifiers are arranged in symmetrically the step of the color backstage side of stage sidewall.
Further, also comprise: described high intermediate frequency audio amplifier is laterally embedded two of the stage ground steps in the slit between the color curtain; With the symmetrical step of arranging of the described high intermediate frequency audio amplifier of stage ground left side of face and right side horizontally set.
Further, also comprise: the curtain that will absorb sound is arranged on the step of the color backstage side on stage sidewall left side and right side.
Based on the arbitrary technical scheme in the technique scheme, the embodiment of the invention can produce following technique effect at least:
Because the present invention separates the high intermediate frequency audio amplifier of strip and the square low frequency audio amplifier of micro linear array audio amplifier, and some high intermediate frequency audio amplifiers are extended to the stage ceiling from stage ground, vertically be stacked into a rectangular structure, also with in the slit between two color curtains of rectangular structure embedding stage sidewall, again the described rectangular structure on stage sidewall left side and right side is arranged symmetrically, some low frequency audio amplifiers are arranged in symmetrically the color backstage side of stage sidewall, therefore, the high intermediate-frequency section that a plurality of rectangular structures of being made up of high intermediate frequency audio amplifier are exported will be coupled and form " cylindrical wave ", the sound levels angle of coverage of output is widened, thereby can cover each corner of performing in a radio or TV programme the Room, the narrow advantage of the vertical angle of coverage of output sound that has in conjunction with micro linear array audio amplifier itself again, therefore compare with arrangement with the sound equipment that traditional sound system adopts, it is wide that the present invention has the horizontal angle of coverage of sound of output, and vertical angle of coverage is narrow, the uniform advantage of the far and near covering of sound, thereby make stage middle section sound pressure level and stage marginal portion sound pressure level differ less, be beneficial to the performer mobile before the lights in the foldback of sound and the audiovisual sensation that strengthens spectators.
In addition, because high intermediate frequency audio amplifier extends to the stage top from ground, make the whole vertical coverage of audio amplifier strengthen, thereby can solve the sound foldback problem that the performer is positioned at each lift in height platform.
Compare with arrangement with the sound system that available technology adopting is traditional, the invention solves the wide problem of the narrower and vertical angle of coverage of horizontal angle of coverage of the sound of sound system output in the prior art.
In addition, at least also there is following advantage in the preferred technical solution of the present invention:
1, since the present invention also high intermediate frequency audio amplifier is laterally embedded in two of the stage ground slits between the color curtain, and the described high intermediate frequency audio amplifier of stage ground left side of face and right side horizontally set arranged symmetrically, therefore make the horizontal angle of coverage of sound of sound equipment output wide further, and vertical angle of coverage is narrow, thereby make stage middle section sound pressure level and stage marginal portion sound pressure level differ less, the audiovisual sensation that is beneficial to the foldback of performer's sound and strengthens spectators.
2, curtain is arranged on the color backstage side on stage sidewall left side and right side because the present invention also will absorb sound, so can farthest reduce the sound reflection at screen rear.
3, since the rectangular structure that is stacked into of high sound equipment used in the present invention to be no more than 80mm wide, therefore after in the slit that embeds between adjacent two color act, distant surveillance is almost straight line, by chance lumps together with the corner of color curtain, thereby can not destroy the whole visual effect of stage.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not constitute improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is stereo of stage system provided by the present invention layout schematic diagram before the lights;
Fig. 2 is the structural representation of linear array audio amplifier.
Embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
The tradition audio amplifier all uses wooden shell, and bulky.The audio amplifier that stereo of stage provided by the present invention system adopts is micro linear array audio amplifier, i.e. K-array series audio amplifier, and it can obtain from directly purchasing on the market.Micro linear array audio amplifier has very narrow vertical cone of coverage, can be adjustable in the 37 degree scopes at 7 degree in vertical angle of coverage.The formation " cylindrical wave " that can be coupled of the sound wave of many micro linear array audio amplifiers array output make the vertical angle of coverage of sound very narrow, thereby projection distance will be farther than traditional audio amplifier.And the high intermediate frequency audio amplifier of micro linear array audio amplifier is strip, and width can not surpass 80mm, and volume is small and exquisite, is installed in the slit between the color curtain of stage not even not easily by the discovering of spectators, and is fit to recessive the installation.
Given this, as shown in Figure 1 and Figure 2, stereo of stage provided by the present invention system comprises micro linear array audio amplifier 1, and linear array audio amplifier 1 comprises high intermediate frequency audio amplifier 11 and low frequency audio amplifier 12.Wherein: high intermediate frequency audio amplifier 11 is strip, and width can not surpass 80mm, and for example the volume specification can be 55 * 70 * 2000mm.The low frequency audio amplifier is square, and the higher intermediate frequency audio amplifier of volume 11 is bigger than normal.
Because the ground 3 of stage during to the vertical height of ceiling 48 meters, and the height of high intermediate frequency audio amplifier 11 is 2 meters, therefore 4 high intermediate frequency audio amplifiers 11 have been adopted in the present embodiment, extend to stage ceiling 4 from stage ground 3 and along vertical direction, be stacked into a rectangular structure, again will this rectangular structure embed in the slit between two color curtains 2 of stage sidewall.In fact, the rectangular structure on stage sidewall left side and right side needs symmetrical, thereby guarantees that whole voice output of performing in a radio or TV programme the Room is comparatively even.Certainly, also can be according to the actual conditions of stage, mainly be the ground 3 of stage to the actual conditions of the vertical height of ceiling 4, control the use of the number of high intermediate frequency audio amplifier 11.
High intermediate frequency audio amplifier 11 is installed jointly with color curtain 1, and is installed in the slit between the two adjacent color curtains 2, because it is no more than the width profile of 80mm, the remote perusal in back is installed almost can be considered a black line, by chance lumps together with the corner of color curtain 2.And, can many high intermediate frequency audio amplifiers 11 be installed along vertical direction, arrange the ceiling 4 to stage, can evenly cover the performance zone, high-altitude of all lifting platforms and high ladder thus, the sound coverage is almost the whole Room of performing in a radio or TV programme.
Because the present invention separates the high intermediate frequency audio amplifier of strip and the square low frequency audio amplifier of micro linear array audio amplifier, and some high intermediate frequency audio amplifiers are extended to stage ceiling 4 from stage ground 3, vertically be stacked into a rectangular structure, also with in the slit between two color curtains of rectangular structure embedding stage sidewall, again the described rectangular structure on stage sidewall left side and right side is arranged symmetrically, some low frequency audio amplifiers are arranged in symmetrically the color backstage side of stage sidewall, therefore, the high pitch part that a plurality of rectangular structures of being made up of high intermediate frequency audio amplifier are exported will be coupled and form " cylindrical wave ", the sound levels angle of coverage of output is widened, thereby can cover each corner of performing in a radio or TV programme the Room, the narrow advantage of the vertical angle of coverage of output sound that has in conjunction with micro linear array audio amplifier itself again, therefore compare with arrangement with the sound equipment that traditional sound system adopts, it is wide that the present invention has the horizontal angle of coverage of sound of output, and the vertical narrow advantage of angle of coverage, thereby make stage middle section sound pressure level and stage marginal portion sound pressure level differ less, the audiovisual sensation that is beneficial to the foldback of performer's sound and strengthens spectators.
Because low-frequency sound is difficult for being blocked, so the low frequency audio amplifier 12 that the present invention can be bigger with volume is positioned over the rear of the color curtain 2 of LED, therefore can not destroy gorgeous stage effect, thereby guarantee the integrality of stage.
In like manner, in order to cover the audiovisual zone in spectators zone 5, strengthen spectators' audio visual effect, high intermediate frequency audio amplifier 11 also laterally embeds in the slit between two color curtains 2 on stage ground 3, and the high intermediate frequency audio amplifier 11 of 3 left sides, stage ground and right side horizontally set is symmetrical.This arrangement makes the horizontal angle of coverage of sound of sound equipment output wide further, and vertical angle of coverage is narrow, thereby make stage middle section sound pressure level and stage marginal portion sound pressure level differ less, the audiovisual sensation that is beneficial to the foldback of performer's sound and strengthens spectators.
In above-described embodiment, stereo of stage provided by the present invention system also comprises a sound absorption curtain (not shown), and the sound absorption curtain is arranged on the coloured silk backstage side on stage sidewall left side and right side.
The present invention also provides a kind of stage structure, and this stage structure comprises the stereo of stage system in the various embodiments described above.The other parts of described stage structure can be with reference to prior art, and this paper no longer launches to describe.
After this stage structure has been used the stereo of stage system in the various embodiments described above, its horizontal angle of coverage with sound of exporting is wide, and the vertical narrow advantage of angle of coverage, thereby make stage middle section sound pressure level and stage marginal portion sound pressure level differ less, the audiovisual sensation that is beneficial to the foldback of performer's sound and strengthens spectators.
The present invention also provides a kind of stereo of stage system layout method, and it comprises:
The step that the high intermediate frequency audio amplifier 11 of strip and the square low frequency audio amplifier of micro linear array audio amplifier are separated;
Some high intermediate frequency audio amplifiers 11 are extended to stage ceiling 4, vertically are stacked into the step of a rectangular structure from stage ground 3;
With the step in the slit between two color curtains 2 of described rectangular structure embedding stage sidewall;
With the symmetrical step of arranging of the described rectangular structure on stage sidewall left side and right side;
Some described low frequency audio amplifiers are arranged in symmetrically the step of the color backstage side of stage sidewall.
The high pitch part that method for arranging provided by the present invention is exported a plurality of rectangular structures of being made up of high intermediate frequency audio amplifier will be coupled and form " cylindrical wave ", the sound levels angle of coverage of output is widened, thereby can cover each corner of performing in a radio or TV programme the Room, the narrow advantage of the vertical angle of coverage of output sound that has in conjunction with micro linear array audio amplifier itself again, therefore compare with arrangement with the sound equipment that traditional sound system adopts, it is wide that the present invention has the horizontal angle of coverage of sound of output, and the vertical narrow advantage of angle of coverage, thereby make stage middle section sound pressure level and stage marginal portion sound pressure level differ less, the audiovisual sensation that is beneficial to the foldback of performer's sound and strengthens spectators.
In the said method, the present invention also comprises:
With the step in the slit between two color curtains 2 on high intermediate frequency audio amplifier 11 horizontal embedding stage ground 3; With the symmetrical step of arranging of the described high intermediate frequency audio amplifier of 3 left sides, stage ground and right side horizontally set.
Therefore, the present invention makes the horizontal angle of coverage of sound of sound system output wide further, and vertical angle of coverage is narrow, thereby makes stage middle section sound pressure level and stage marginal portion sound pressure level differ less, the audiovisual sensation that is beneficial to the foldback of performer's sound and strengthens spectators.
In the said method, the present invention also comprises:
The sound absorption curtain is arranged on the step of the color backstage side on stage sidewall left side and right side.
Should be noted that at last: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement the specific embodiment of the present invention; And not breaking away from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (8)
1. stereo of stage system is characterized in that:
Comprise some micro linear array audio amplifiers;
Described linear array audio amplifier comprises high intermediate frequency audio amplifier and the foursquare low frequency audio amplifier of strip;
Wherein:
Some described high intermediate frequency audio amplifiers extend to the stage ceiling, vertically are stacked into a rectangular structure, in the slit between two color curtains of this rectangular structure embedding stage sidewall from stage ground;
The described rectangular structure on stage sidewall left side and right side is symmetrical;
Some described low frequency audio amplifiers are arranged in the color backstage side of stage sidewall symmetrically.
2. stereo of stage system according to claim 1 is characterized in that:
Described high intermediate frequency audio amplifier also laterally embeds in two of the stage ground slits between the color curtain, and the described high intermediate frequency audio amplifier of stage ground left side of face and right side horizontally set is symmetrical.
3. as stereo of stage system as described in the claim 2, it is characterized in that:
Also comprise the sound absorption curtain,
Described sound absorption curtain is arranged on the color backstage side on stage sidewall left side and right side.
4. stereo of stage system according to claim 1 is characterized in that:
The width of described rectangular structure is no more than 80mm.
5. stage structure is characterized in that:
Comprise as each described stereo of stage system among the claim 1-4.
6. a stereo of stage system layout method is characterized in that,
Comprise:
The step that the high intermediate frequency audio amplifier of strip and the square low frequency audio amplifier of micro linear array audio amplifier are separated;
Some described high intermediate frequency audio amplifiers are extended to the stage ceiling, vertically are stacked into the step of a rectangular structure from stage ground;
With the step in the slit between two color curtains of described rectangular structure embedding stage sidewall;
With the symmetrical step of arranging of the described rectangular structure on stage sidewall left side and right side;
Some described low frequency audio amplifiers are arranged in symmetrically the step of the color backstage side of stage sidewall.
7. stereo of stage system layout method as claimed in claim 6 is characterized in that,
Also comprise:
Described high intermediate frequency audio amplifier is laterally embedded two of the stage ground steps in the slit between the color curtain;
With the symmetrical step of arranging of the described high intermediate frequency audio amplifier of stage ground left side of face and right side horizontally set.
8. stereo of stage system layout method as claimed in claim 6 is characterized in that,
Also comprise:
The sound absorption curtain is arranged on the step of the color backstage side on stage sidewall left side and right side.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108124217A (en) * | 2018-02-14 | 2018-06-05 | 北京麦颂文化传播有限公司 | It sings merrily system |
| CN108449684A (en) * | 2018-03-01 | 2018-08-24 | 安徽火炎焱文化传媒有限公司 | A kind of stereo of stage control device |
| CN111264065A (en) * | 2017-10-23 | 2020-06-09 | L-声学科技公司 | Spatial arrangement of sound broadcasting equipment |
| WO2023212073A1 (en) * | 2022-04-26 | 2023-11-02 | Quinby Michael | Audio management system for a virtual production volume |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2082611A2 (en) * | 2006-10-16 | 2009-07-29 | THX Ltd | Loudspeaker line array configurations and related sound processing |
| CN202008808U (en) * | 2010-11-17 | 2011-10-12 | 安顺市世博传媒广告策划有限责任公司 | Mobile advertisement propaganda vehicle |
| CN102340728A (en) * | 2011-07-25 | 2012-02-01 | 顾康 | Loudspeaker box arrangement method using linear array loudspeaker boxes for sound reinforcement in stadium |
| CN202310013U (en) * | 2011-06-11 | 2012-07-04 | 斯贝克电子（嘉善）有限公司 | Full-frequency stereo connecting mechanism |
| CN203368758U (en) * | 2013-06-09 | 2013-12-25 | 中央电视台 | Stage sound equipment system and stage structure |
-
2013
- 2013-06-09 CN CN201310229296.XA patent/CN103281651B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2082611A2 (en) * | 2006-10-16 | 2009-07-29 | THX Ltd | Loudspeaker line array configurations and related sound processing |
| CN202008808U (en) * | 2010-11-17 | 2011-10-12 | 安顺市世博传媒广告策划有限责任公司 | Mobile advertisement propaganda vehicle |
| CN202310013U (en) * | 2011-06-11 | 2012-07-04 | 斯贝克电子（嘉善）有限公司 | Full-frequency stereo connecting mechanism |
| CN102340728A (en) * | 2011-07-25 | 2012-02-01 | 顾康 | Loudspeaker box arrangement method using linear array loudspeaker boxes for sound reinforcement in stadium |
| CN203368758U (en) * | 2013-06-09 | 2013-12-25 | 中央电视台 | Stage sound equipment system and stage structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111264065A (en) * | 2017-10-23 | 2020-06-09 | L-声学科技公司 | Spatial arrangement of sound broadcasting equipment |
| CN108124217A (en) * | 2018-02-14 | 2018-06-05 | 北京麦颂文化传播有限公司 | It sings merrily system |
| CN108449684A (en) * | 2018-03-01 | 2018-08-24 | 安徽火炎焱文化传媒有限公司 | A kind of stereo of stage control device |
| WO2023212073A1 (en) * | 2022-04-26 | 2023-11-02 | Quinby Michael | Audio management system for a virtual production volume |
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| CN103281651B (en) | 2016-07-06 |
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