CN204305344U - The configuration structure of loudspeaker during 5.1 surround sound audio frequency make - Google Patents
The configuration structure of loudspeaker during 5.1 surround sound audio frequency make Download PDFInfo
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- CN204305344U CN204305344U CN201420706210.8U CN201420706210U CN204305344U CN 204305344 U CN204305344 U CN 204305344U CN 201420706210 U CN201420706210 U CN 201420706210U CN 204305344 U CN204305344 U CN 204305344U
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Abstract
The utility model relates to the configuration structure of loudspeaker in a kind of 5.1 surround sound audio frequency making, this structure comprises center loudspeaker, front left speaker, front right loudspeaker, rear left speaker and rear right loudspeaker, 5 main loudspeakers be distributed in center audio mixing point for radius circumferentially, center loudspeaker is positioned at axis directly in the face of the audio mixing position at center, front left speaker, front right loudspeaker is symmetricly set in center loudspeaker both sides, tilt all to the inside, acoustic axis is towards audio mixing position, two loudspeakers are that 60 ° of angles are installed, rear left speaker and rear right loudspeaker are symmetricly set in rear side, the angular range of rear left speaker and rear right loudspeaker and axis is 110 ~ 150 °, tilt all to the inside, acoustic axis is towards audio mixing position.Structure surround sound of the present utility model is conducive to showing pop music, can create the sound field being more rich in texture and tensity, improve the impression of audio experience.
Description
Technical field
The utility model relates to Audiotechnica field, particularly relates to the configuration structure of loudspeaker in a kind of 5.1 surround sound audio frequency making.
Background technology
In recent years, along with the fieriness of provincial satellite TV rating Great War, high definition variety class program has become the core resource of each corner of table by rating height.But while high definition variety develops on an unprecedented scale, be but the generally complaint of televiewer to broadcast sounds quality, subject matter has: sound is clear not, do not have level; Tone color is vivid not, does not have texture; Volume is unification not, fluctuated; Space is three-dimensional not, lacks perspective.Sound quality has become one of key issue of further developing of restriction variety show.Therefore, how to reduce reality and the contrast of demand, how to improve sound quality, significantly promote the audio frequency production technique of high definition variety show, become TV and made bottleneck problem anxious to be resolved.
Research shows, cause the reason of this phenomenon at present, not only at technological layer, the backwardness of production standard and the confinement of traditional concept, be only the direct root causing this problem.For a long time, the audio frequency making pattern of single loudspeaker, seriously hinders the development of sound, greatly weakens artistic expression and the space imagination of sound of television, sound is made all the time at the flow process Inner eycle of low side, the creation category of aesthetic cannot be striden into.
Current, appearing as us and changing this situation of HDTV, provides a natural opportunity, makes us can leave for the effect of re-examine sound from the origin of TV.The introducing of surround sound, opens the new space of TV creation, makes TV from then on breach the restriction of conventional two-dimensional picture, makes the artistic feeling of three-dimensional solid narration and panorama become possibility.People, in domestic environment, also can immersively to enjoy and high-definition image equally mirable sound.Surround sound has become requisite important need in TV entertainment, and this is also the major reason that increasing televiewer opens HDTV service.
General Bureau of Radio, Film and Television, in Eleventh Five-Year Plan, clearly proposes: ability is broadcasted in the making that is stereo, surround sound program that will improve radio and television energetically.Therefore, current in the urgent need to for the on-the-spot broadcasting of large-scale high definition variety class program and post-production, research and develop out a set of that there is practical advice meaning, that applicability is wider 5.1 surround sound audio frequency and make specification and system flows.Popularizing of high definition surround sound technology, significantly will promote the recreational value of variety show, at strengthening audio visual effect, expands in rating crowd and will play very positive exemplary role.
Summary of the invention
In order to solve above-mentioned technical problem, the purpose of this utility model is to provide the configuration structure of loudspeaker in a kind of 5.1 surround sound audio frequency making, this structure surround sound is conducive to showing pop music, can create the sound field being more rich in texture and tensity, improve the impression of audio experience.
In order to realize above-mentioned object, the utility model have employed following technical scheme:
The configuration structure of loudspeaker during 5.1 surround sound audio frequency make, this structure comprises center loudspeaker, front left speaker, front right loudspeaker, rear left speaker and rear right loudspeaker, 5 main loudspeakers be distributed in center audio mixing point for radius circumferentially, center loudspeaker is positioned at axis directly in the face of the audio mixing position at center, front left speaker, front right loudspeaker is symmetricly set in center loudspeaker both sides, tilt all to the inside, acoustic axis is towards audio mixing position, two loudspeakers are that 60 ° of angles are installed, rear left speaker and rear right loudspeaker are symmetricly set in rear side, the angular range of rear left speaker and rear right loudspeaker and axis is 110 ~ 150 °, tilt all to the inside, acoustic axis is towards audio mixing position.
As preferably, the height that described center loudspeaker, front left speaker and front right loudspeaker are arranged is 1.2m, and the height that rear left speaker and rear right loudspeaker are arranged is greater than 1.2m.
As preferably, described rear left speaker and the angular range of rear right loudspeaker and axis are 135 ~ 150 °.
The utility model is owing to have employed above-mentioned technical scheme, center loudspeaker, for passing on speech signal, the evaluation of the language of such as host, the performance of singer, tutor and side etc., every information relevant to language, is all placed on center loudspeaker in principle, sometimes in order to widen the acoustic image volume of center loudspeaker, speech signal can be separated a part (DIV function), to match with picture traverse toward front left, front right loudspeaker.Center loudspeaker mainly strengthens the stability of sound picture direction, front sound localization, makes hearing experience have uniformity.Front left, front right loudspeaker are used for showing the contents such as musical background in principle, are mainly used in musical instrument and harmony in a program which.Certainly, there is a small amount of musical instrument with in the not afoul situation of center loudspeaker content, also can be placed on center loudspeaker.Rear left, rear right generally do not bear separately making task, and it is normally formed to combine with front left, front right and jointly has an effect.Front left, front right and rear left, rear right are mainly used to the reflected sound and the reverberation sound that show environment space, to build room atmosphere and subjective Sensurround.Can say, in surround sound " around " information is jointly determined by the correlation of these four loudspeakers and signal level to a great extent.In a program which, spatial information is picked up by surround sound microphone array exactly, by certain algorithm assigns to front left, front right, rear left, rear right four loudspeakers, just can create one and come from scene, is different from on-the-spot " acoustics art space " again.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model; 1. 2. be screen in figure, 2 β
1=33 °, 2 β
2=48 °, 1 center loudspeaker, left speaker before 2,3 front right loudspeakers, left speaker after 4,5 rear right loudspeakers.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is made a detailed explanation.
The configuration structure of loudspeaker during 5.1 surround sound audio frequency as shown in Figure 1 make, this structure comprises center loudspeaker 1, front left speaker 2, front right loudspeaker 3, rear left speaker 4 and rear right loudspeaker 5,5 main loudspeakers be distributed in center audio mixing point for radius circumferentially, for avoiding phase cancellation and comb filtering, strictly speaking, the time of these 5 audio amplifiers arrival audio mixing positions should be identical, and preferably distance is also identical.If because the physical factors such as room layout cannot realize, just compensation of delay technology should be used.Different with room-sized owing to monitoring, generally, best audio mixing distance is 2 meters ~ 2.5 meters.
Center loudspeaker 1 is positioned at axis directly in the face of the audio mixing position at center, front left speaker 2, front right loudspeaker 3 are symmetricly set in center loudspeaker 1 both sides, tilt all to the inside, acoustic axis is towards audio mixing position, two loudspeakers are that 60 ° of angles are installed, this configuration is not only applicable to surround sound, also provides compatibility for stereo monitoring.The height that described center loudspeaker 1, front left speaker 2 and front right loudspeaker 3 are arranged is 1.2m, and three loudspeakers of front wall should be contour, all equally high with the ear of audio mixer, should be positioned at above sound console table bridge simultaneously.If there is video-frequency monitor, monitor should be raised or reduce, instead of mobile center loudspeaker 1.
Rear left speaker 4 and rear right loudspeaker 5 are symmetricly set in rear side, and rear left speaker 4 and rear right loudspeaker 5 are 110 ~ 150 ° with the angular range of axis, and tilt all to the inside, acoustic axis is towards audio mixing position.The height that rear left speaker 4 and rear right loudspeaker 5 are arranged is greater than 1.2m.It should be noted that ITU suggestion by rear loop mapping between 100-120 ° of hearer side, this suggestion is television broadcasting and researching and developing at first, does not have for music.So it has sought compromise between Sensurround and rear Sound image localization.The position that Sensurround is the strongest is 90 ° of positions in side; And rear Sound image localization is better local, be then on the position that the rear of rear ring, axis angle are larger.Although the surround sound manufacturing mechanism of the specialty such as film, TV adopts ITU suggestion, ITU advises and is not suitable for music making.Because the rear ring passage of music surround sound, carries requisite music information, and be not effect or atmosphere, so the pendulum position of loudspeaker just only can not be confined to the suggestion of ITU.For audio mixer, rear ring speaker is in much subtended angles, and result depends on the programme content needing audio mixing completely.
Claims (3)
1.5.1 surround sound audio frequency make in the configuration structure of loudspeaker, it is characterized in that: this structure comprises center loudspeaker (1), front left speaker (2), front right loudspeaker (3), rear left speaker (4) and rear right loudspeaker (5), 5 main loudspeakers be distributed in center audio mixing point for radius circumferentially, center loudspeaker (1) is positioned at axis directly in the face of the audio mixing position at center, front left speaker (2), front right loudspeaker (3) is symmetricly set in center loudspeaker (1) both sides, tilt all to the inside, acoustic axis is towards audio mixing position, front left speaker (2) and front right loudspeaker (3) are installed in 60 ° of angles, rear left speaker (4) and rear right loudspeaker (5) are symmetricly set in rear side, rear left speaker (4) and rear right loudspeaker (5) are 110 ~ 150 ° with the angular range of axis, tilt all to the inside, acoustic axis is towards audio mixing position.
2. 5.1 surround sound audio frequency according to claim 1 make in the configuration structure of loudspeaker, it is characterized in that: the height that center loudspeaker (1), front left speaker (2) and front right loudspeaker (3) are arranged is 1.2m, the height that rear left speaker (4) and rear right loudspeaker (5) are arranged is greater than 1.2m.
3. 5.1 surround sound audio frequency according to claim 1 make in the configuration structure of loudspeaker, it is characterized in that: the angular range of rear left speaker (4) and rear right loudspeaker (5) and axis is 135 ~ 150 °.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110677750A (en) * | 2019-10-23 | 2020-01-10 | 朝阳聚声泰（信丰）科技有限公司 | Automobile virtual venue sound system and implementation method thereof |
| CN112242150A (en) * | 2020-09-30 | 2021-01-19 | 上海佰贝科技发展股份有限公司 | Method and system for detecting stereo |
| CN113099373A (en) * | 2021-03-29 | 2021-07-09 | 腾讯音乐娱乐科技（深圳）有限公司 | Sound field width expansion method, device, terminal and storage medium |
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2014
- 2014-11-21 CN CN201420706210.8U patent/CN204305344U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110677750A (en) * | 2019-10-23 | 2020-01-10 | 朝阳聚声泰（信丰）科技有限公司 | Automobile virtual venue sound system and implementation method thereof |
| CN112242150A (en) * | 2020-09-30 | 2021-01-19 | 上海佰贝科技发展股份有限公司 | Method and system for detecting stereo |
| CN112242150B (en) * | 2020-09-30 | 2024-04-12 | 上海佰贝科技发展股份有限公司 | Method and system for detecting stereo |
| CN113099373A (en) * | 2021-03-29 | 2021-07-09 | 腾讯音乐娱乐科技（深圳）有限公司 | Sound field width expansion method, device, terminal and storage medium |
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