CN102595282B - Method and system for integrating multimedia audio-visual device - Google Patents
Method and system for integrating multimedia audio-visual device Download PDFInfo
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- CN102595282B CN102595282B CN201210037940.9A CN201210037940A CN102595282B CN 102595282 B CN102595282 B CN 102595282B CN 201210037940 A CN201210037940 A CN 201210037940A CN 102595282 B CN102595282 B CN 102595282B
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Abstract
The invention discloses a method for integrating a multimedia audio-visual device. The method comprises the following steps: (1) preparing a flat hollow box bracket, (2) preparing a register acoustic device, (3) preparing a display device, (4) preparing a control device, and (5) assembling: respectively assembling the acoustic device, the display device and the control device on the bracket and obtaining a system for integrating the multimedia audio-visual device of the acoustic device with 5.1 sound channels which are symmetrically arranged left and right. The invention also discloses a system for integrating the multimedia audio-visual device prepared by the method of the invention. In the method and the system, provided by the invention, sound parameters of the acoustic device and the video device are correspondingly adjusted according to a concrete audio-visual space layout and position information of a user in an audio-visual space, so that the user can enjoy sound effect of the 5.1 sound channels and visual ornamental effects at any position in the audio-visual space.
Description
Technical field
The invention belongs to multimedia technology field, be specifically related to a kind of height integrated, multimedia video device for tone frequencies integrated approach and the system of high-quality.
Background technology
Along with social progress and growth in the living standard, society is more and more higher to the requirement of audio/video multimedia audio-visual equipment, not only requires acoustics to get well, and visual effect will get well, also easy to install.Along with the demand of the integrated multimedia acoustic product of various large-scale, high-quality is more and more diversified and personalized, these products are carried out to Standardized Design, assembling, thereby reduce the aspects such as cost of goods manufactured and short manufacturing cycle and have very important meaning, and traditional manufacturing technology and product can not meet market to multi-varieties and small-batch, have more the demand that characteristic meets client individual and require the product of pattern and function.
In the prior art, sound wave is the comprehensive of the variation of the pressure propagated in Elastic medium, stress, particle displacement, particle velocity etc. or several variations.When sound source is towards periphery when medium radiative acoustic wave, the region that has sound wave to exist in medium is called sound field.
Sound field, the part medium scope that has sound wave to propagate therein, refers to the space occupied of Elastic medium that sound wave exists.Medium can be gas, liquid and solid, and the medium that environmental acoustics relates to is mainly atmosphere.Sound field can be divided into again free found field and mix sound field etc.Free found field refers to, sound source is in even, isotropic medium, and the sound field that the impact on border can be disregarded is called free found field.In free found field, sound wave is by the not interrupted and propagation intrusively to all directions of the radiation characteristic of sound source.Sound field in enclosure space refers to, the sound field of sound source radiation in the space that interface surrounded different by specific acoustic impedance claims the sound field in enclosure space.For example machine sends noise in workshop or laboratory, and when the area of door, window or other openings is much smaller than the area on whole border, indoor sound field just can be regarded the sound field in enclosure space approx as.Sound source when radiative acoustic wave, propagates into the sound wave on each interface in enclosure space, and a part is by Interface Absorption, and a part is reflected.In general room, be after multiple reflections, sound intensity of wave is just attenuated to can uncared-for degree.
The present invention studies a kind of according to the sound field characteristic of enclosure space, reaches multimedia integration multimedia video device for tone frequencies integrated approach and the system of high-quality tonequality and image quality.
In the sound field of enclosure space, comprise direct sound wave and reverberation sound.Sound source is in enclosure space continuously and stably when radiative acoustic wave, and the acoustic energy of space each point is the result from the sound wave stack of all directions.Wherein reflection, the sound wave that directly propagates into certain point are called direct sound wave; Once be called reverberation sound with the stack of multiple reflections sound.The intensity of direct sound wave be inversely proportional to from the square distance of Sound Source Center.If frequency higher (wavelength is very little compared with bulk), it is equal everywhere that the intensity of reverberation sound can be thought approx.The size of reverberation acoustic energy, except outside the Pass having with radiation power of sound source, also relevant with the average sound absorption coefficient at space size and all interfaces.
The present invention is also by independent research, obtains preferably indoor acoustic pressure steady-state value scope, and apply it to product design, integrated in.Sound source is with acoustical power (W) in enclosure space stably when radiative acoustic wave, and when sound wave is propagated in medium on the one hand, acoustic energy is constantly decayed, and when sound wave runs into interface, some energy is absorbed again; Sound source is constantly supplemented again acoustic energy on the other hand.Sound source started after sounding through very short a period of time, and acoustic energy just reaches dynamic balance state, and in this time space, each point acoustic pressure reaches a steady-state value.
When indoor direct sound wave and reverberation sound are all counted, be certain point of r from Sound Source Center distance, mean value p times of acoustic pressure square, ρ 0 is the density of air; C is the airborne velocity of sound; Q θ is the directivity factor of sound source in the radiation of θ direction, the ratio of the sound intensity of the non-directive sound source that sound intensity of this point equates with acoustical power in same distance; R=S Wei/(1-Wei) is called room constant; S is indoor total surface area; Wei is the average sound absorption coefficient on indoor all surfaces.
Diffuse field distance refers to that through acoustic pressure is by decaying apart from inverse ratio rule, reverberation sound can be similar to thinks that each point all equates in space, therefore in a certain distance from sound source, its direct sound wave effective acoustic pressure just in time equates with reverberation sound effective acoustic pressure, and this distance is called diffuse field distance rc.
The acoustic absorptivity at enclosure space volume or interface is larger, and diffuse field distance is just larger.When sound source is in the time that the directivity factor of all directions radiation is different, the diffuse field distance on different directions is also different.If sound source radiation non-directive, i.e. Q θ THREE-IN 1, at this moment the diffuse field distance of all directions is all identical, is called reverberation radius.
In the region that is less than diffuse field distance, direct sound wave is greater than reverberation sound, within the scope of permissible error, can ignore the region of reverberation sound (being reflected sound) impact, as approximate free found field.Otherwise in the region that is greater than diffuse field distance, reverberation sound is greater than direct sound wave, is called reverberant field.
Normal-mode: when sound wave is propagated between a pair of rigid interface parallel to each other, if distance is the integral multiple of half-wavelength, will produce resonance.Corresponding frequency claims normal frequency (or natural frequency, resonance frequency), and corresponding standing wave circulation way claims the normal modes of vibration, or normal-mode.Three dimensions has a series of various types of normal-mode.Calculating formula about normal frequency is shown in room acoustics.
Diffuse sound field: in the time being excited normal-mode in enclosure space abundant, because different modes has the specific direction of propagation separately, thereby make the sound wave that reaches certain point comprise various possible incident directions.In this case, the fixing interference region in He Li interface, free found field district 1/4 wave-length coverage in diffuse field distance, in space, the acoustic density of each point equates; The sound intensity that arrives certain point from all directions equates; The phase place arriving between each wave beam of certain point is random.The sound field that possesses such characteristic is called diffuse sound field.
Desirable diffuse sound field is also difficult to obtain.In low-frequency range, the normal-mode being excited is less especially, and the sound wave incident direction that arrives certain point is insufficient, and the fluctuating of each point acoustic density is also larger.In addition,, in the time that there is the material that the surface specific acoustic impedance of bulk area differs greatly at interface, also can make the sound field in space inhomogeneous.This situation is called sound field indiffusion or spreads bad.In order to obtain good sound dffusion condition, for the laboratory of reverberation room or special test noise, in the time of design, should consider to take following measures: 1. make laboratory have enough large volume especially; 2. make laboratory have good layout; 3. at the suitable fixed or movable diffuser of indoor increase.
The present invention also researches and develops rational sound field decay and the reverberation time scope of obtaining.Sound source one stops sounding, and in enclosure space, average acoustic energy density everywhere just decays gradually by index percent.Acoustic density decay to the required time in 1,000,000 original/time and is called the reverberation time.The length of reverberation time is directly proportional to spatial volume, and with space in sound absorption be inversely proportional to.
Dissimilar normal-mode has different exponential decay law (or reverberation time).Total decay process is not single exponential disintegration rule, often has larger difference with the rate of disintegration of difference in time space yet.The inhomogeneities of this reverberation time and the scrambling of the rate of disintegration are closely connected with sound dffusion is bad.
In the time that sound dffusion is bad, indoor each point sound pressure level and the fluctuating of reverberation time are all larger.At this moment, in actual acoustic is measured, only obtain at more measuring point the mean value of repeatedly measuring, just can obtain experimental result comparatively accurately.
The present invention has fully used room acoustics (room acoustics) achievement in research, and in Qi Shi research department, the subject of the propagation of sound and hearsay effect, is the important component part of architectural acoustics.Its objective is and provide theoretical foundation and method for room acoustical design.Sound is arranged relevant in indoor propagation with shape, size, structure and the sound-absorbing material in room; Hearsay effect reflects people's subjective feeling, and there is to different evaluation criterions in the room of different purposes.Indoor, the Acoustic Wave Propagation of sound source radiation is on interface time, and part acoustic energy is absorbed, and part is reflected.Conventionally will be after multiple reflections, acoustic density is just attenuated to can uncared-for degree.When sound source is continuously and stably when radiative acoustic wave, the acoustic energy of space each point is the result from the stack of all directions sound wave.Wherein reflection, directly propagate into certain point by sound source sound wave be called direct sound wave; Once be called reverberation sound with the stack of multiple reflections sound wave.
Room sound field is synthetic by direct sound wave and reverberation sound, and the acoustic density of direct sound wave is by anti-square law decay, and that the acoustic density of reverberation sound can be thought is approx equal everywhere.The size of reverberation acoustic energy, except outside the Pass having with the radiant power of sound source, also relevant with the average sound absorption coefficient at space size and each interface.The research of indoor sound transmission.Under different condition, can carry out respectively the propagation of sound in research department by ray acoustics method, statistical acoustics method and wave acoustics method.
Ray acoustics method refers in the time of the diffusivity of research freedom sound field, ignores the wave characteristic of sound, adopts sound ray to describe the method for sound transmission approach.When indoor sound transmission to size is during than the much bigger interface of wave length of sound, the propagation law of available ray acoustics method research sound.This and with sound ray conceptual approach acoustic propagation approach be according to reflection law: the angle of reflection of sound ray equals incidence angle, and reflection sound ray and incident sound ray and normal are at grade.
The present invention utilizes the geometrograph of sound ray to analyze the distribution situation of direct sound wave and nearly secondary reflection sound, avoids there is larger delay-time difference between direct sound wave and first reflection sound, avoids the focusing of reflected sound to appear near auditoria.By the layout near the reflecting surface of sound source, supplement the reflected sound of short delay, to avoid the sound intensity before sound source to increase and occurred significantly descending degradation with distance.
Wave acoustics method refers to the method with the indoor standing wave resonance impact of Research on fluctuation theory.When the physical dimension of Interior Interface and wave length of sound are when comparable, the wave characteristic of sound just can not be ignored, and becomes outstanding research emphasis.According to wave acoustics principle, in the time that equaling the integral multiple n of sound wave half wavelength lambda/2, the distance 1 between pair of parallel metope can produce standing wave in this dimension, the compression and sparse " pattern " that are Acoustic Wave Propagation have fixing position in space, resonance appears in room air vibration in other words.In the time that people moves towards the other end along standing wave direction from one end, can feel that the sound intensity has variation fluctuated, height differs and can reach at most 20 decibels of left and right.These can produce in wave frequency and be called normal mode vibration frequency or claim normal frequency.Its result makes sound field extremely inhomogeneous, and can make the some frequency contents that meet above-mentioned situation in sound source too be strengthened, and also decays slowlyer than other frequency, therefore will cause serious distortion.
The present invention has carried out the symmetrical tonequality design of high-fidelity.The quality of the power of sound, the height of tone and tone color is the essential characteristic of sound.Therefore, in tonequality design, should, according to the concrete instructions for use in room, accomplish to utilize fully direct sound wave, the nearly secondary reflection sound that reasonably distributes, correctly controls reverberation sound.
On interface, the frequency response curve of sound-absorbing material can not be straight line, will take into full account this situation, otherwise can cause frequency distortion in the time selecting and arrange sound-absorbing material.Because people's ear can only be told two sound interval greater than 50 milliseconds, therefore the nearly secondary reflection sound in 50 milliseconds has the effect of strengthening direct sound wave, and this improves signal to noise ratio all favourable for the diffusivity of improving sound field.Should avoid the phenomenon (seeing tonequality defect) of flutter echo and sound focusing simultaneously as far as possible.The richness cordial feeling of tone color is directly relevant to the reverberation time, and the reverberation time is too short, can feel dry and astringent; And the reverberation time is long, affect again the definition of sound.
The quality of sound system overall technology index performance, depends on the quality of each unit self performance, if the technical indicator of each unit in system is higher, the technical indicator of entire system is fine so.Its technical indicator mainly contains six: frequency response, signal to noise ratio, dynamic range, the distortion factor, transient response, stereo crosstalk, the stereo degree of balance, the present invention makes every effort to reach according to specific needs These parameters is regulated, and makes it reach personal needs.
Wherein, frequency response refers to the frequency range of stereo set playback time and the amplitude of the sound wave variation relation with frequency.General this index that detects is taking the Frequency and Amplitude of 1000Hz as reference, and with logarithm the amplitude taking decibel (dB) as unit representation frequency.It is 20～20000Hz that the overall frequency response of sound system requires in theory.Due to reasons such as the quality of circuit structure, element, often can not reach this requirement, but generally at least will reach 32～18000Hz in actual use.
Signal to noise ratio refers to the ratio of the new noise that the acoustical reproduction of sound system to source of sound software and whole system produce, and its noise mainly contains thermal noise, AC noise, machinery noise etc.General when detecting this index and inputting with no signal with the rated output power of replay signal the logarithm ratio decibel (dB) of system noise power output represent.The signal to noise ratio of general sound system need be more than 85dB.
The logarithm value of the ratio of system noise power output when dynamic range refers to sound system playback time maximum undistorted power output with static state, unit is decibel (dB).The dynamic range of the good sound system of general performance is more than 100 (dB).
After distortion refers to that sound system is reset to sound source signal, make some part (waveform, frequency etc.) of former sound source signal that variation occur.The distortion of sound system mainly contains following several:
A. harmonic distortion: so-called harmonic distortion refer to sound system reset after sound than the much more extra harmonic components of original signal source.This extra harmonic components signal is frequency multiplication or the frequency division of signal source frequency, and it is caused by negative feedback network or amplifier nonlinearity characteristic.The harmonic distortion of high fidelity sound system should be less than 1%.
B. intermodulation distortion: intermodulation distortion is also a kind of nonlinear distortion, it is that plural frequency component is mixed by a certain percentage, between each frequency signal, intermodulate, by producing the nonlinear properties that newly increase after tone playing equipment, this signal comprise between each signal and and poor signal.
C. transient distortion: transient distortion claims again transient response, its generation is mainly that the reflection due to amplifier is slower in the time that larger transient signal is added to amplifier suddenly, thereby makes signal produce distortion.Generally pass through after tone playing equipment the similar follow-up capability of amplifier to transient signal of expressing of the square-wave waveform whether envelope waveform of observation amplifier output signal is inputted with input square-wave signal.
Stereo crosstalk represents the isolation between two sound channels of stereo component system middle left and right, and in fact it reflected left and right two degree that sound channel is crosstalked mutually.If it is larger to crosstalk between two sound channels, the third dimension of the sound of resetting so will weaken.
The stereo degree of balance represents the difference of three-dimensional playback system middle left and right channel gain, if degree of unbalance is excessive, the stereosonic Sound image localization of playback will produce skew.The stereo degree of balance of general high-quality sound system should be less than 1dB.
The range scope of the playback sound of sound system generally can be divided into subwoofer, bass, middle bass, middle pitch, alt, alto, high pitch, eight ranges of extra-high-speed sound.Audio frequency range generally can be divided into four frequency ranges, i.e. low-frequency range (30～150Hz); Medium and low frequency section (150～500Hz); Medium-high frequency section (500～5000Hz); High band (5000～20000Hz).Wherein, 30～150Hz frequency range: can show the low-frequency component of music, make appreciator experience strong and powerful innervation.150～500Hz frequency range: can show the expressive force of single percussion instrument in music, be the part of expressing dynamics in low frequency.500～5000Hz frequency range: mainly express the definition of singer's language and the expressive force of string music.5000～20000Hz frequency range: mainly express the lightness of music, but too much can make sound send out broken.
Directly sound field, reflection sound field, not direct sound field
When loud speaker is sounded in a room, audience can hear directly and pass the sound of coming from loud speaker, Here it is direct sound field (indirectfield), but also can hear the sound reflecting back from wall, ceiling and floor, this is just called reflection sound field (reverberantfield).Audience hears the sound of more direct sound fields, the sound of reflection sound field just more hour, this sound is just better, because directly the sound of sound field can be controlled, but the sound of reflection sound field is out of contior, only can add noisy dying directly educating a sound sending, lowering at the bottom of the definition of script sound, so sit to such an extent that will feel better acoustics from the closer audience of audio amplifier, and it is larger than direct sound field sound to be sitting in the reflection sound field sound that audience is below likely that they hear, acoustics just can be poor and definition reduce.When sometimes one group of band performs on platform, because they do not have monitor speaker, and the main sound box of both sides is the position being placed near entablature, the sound that band and singer hear is not let slip from direct sound field completely, the position that they stand is just called not directly sound field, sound effect is surely not good, and the performance level that this also can have influence on band makes spectators hear not so good performance sound.
Good product, good Environment Design, the installation and debugging that also needed.Suitable position, suitable size, place suitable equipment, debug out suitable effect according to environment and user's hobby, main application etc. also more important than the product of having bought to a certain extent.The present invention is directed to this demand, having researched and developed can be according to concrete engineering installation and debugging needs, can regulate within the specific limits product size (length and width absolute value and relative scale), make it easy to carry out rational installation and debugging, obtain preferably audio frequency and video effect.And in existing acoustic product, generally all do not provide the function that regulates product size.
Summary of the invention
The present invention has been undertaken rational integrated by sound system and video system, control system.In prior art, sound equipment refers to other sounds except people's language, music, comprises various sound that sound equipment, the people's of sound, the machine tools of the sound, the animal of natural environment action is sent etc.Sound equipment probably comprises that power amplifier, peripheral equipment (comprising compressor, effect device, equalizer, VCD, DVD etc.), loud speaker (audio amplifier, loudspeaker) sound console, microphone, display device etc. add up a set of.Wherein, audio amplifier is exactly audio output device, loudspeaker, subwoofer etc.In an audio amplifier, comprise high and low, in three kinds of loud speakers, three kinds but not necessarily with regard to three.
The present invention's research is in the quantity of audio amplifier, in quality and position distribution, adopt multiple independent ranges of sound and acoustics to form, these audio amplifiers have comprised that satellite rings is around case and supper bass effect case, focus on the power of audio amplifier, frequency response, the indexs such as distortion effect requirement, and focus on the coordinated effect between multitone case, simultaneously, it forms symmetrical sound field structure, meet 5.1 sound channel requirements, make this large-scale integrated audio there is music reducing power and sound effect, not only there is sound and play up ability, can ensure the true playback of higher sound simultaneously, it is the assembly of large-scale AV & HI-FI audio amplifier.
The present invention uses sound reinforcement system calculation of Acoustic Characteristics machine aided design techniques, it is to utilize the Literature Lessons to be engaged in a kind of Perfected process of engineering design, precision is high, efficiency is high, the more important thing is and need not wait until that Installation and Debugging finish just can know engineering design result.Calculation of Acoustic Characteristics machine design system has extraordinary confidence level and precision, the input hall build sound data enough accurately time, its calculated data is compared with last electroacoustic measured result, in error can be controlled in decibel.For engineering design and Installation and Debugging, this is enough, and it also has good design and installation debugging directiveness simultaneously, and this has obtained good checking in engineering design in the past.Adopt acoustics CAD computer system to carry out the acoustic characteristic of the designing and calculating hall, stadiums (gymnasiums), multifunctional hall, Conference Hall sound reinforcement system, just mean, need not wait until system install, debug and measure complete after, just can know its design and installation debug results.In other words,, according to the given audio system of present design and design calculation result, clearly seen the sound reinforcement system acoustic characteristic of this system expection.
The loudness of product of the present invention is higher, can fully meet the audiovisual demand of large stadium.The acoustic characteristic of Specialty Hi-Fi not only will meet the requirement of acoustic characteristic index national standard, also to meet the requirement of subjective audition, because acoustic characteristic index can not embody actual sound effect completely, the quality of sound is finally to be felt to decide by people's subjective audition, in the time of acoustic design, electroacoustic with build sound design should be good fit, meet following subjective audition and require suitable loudness.Loudness is the intensity sensation of actual audition, and it has direct relation with the maximum sound pressure level index of sound reinforcement system, for performing, only reaches enough loudness, just can make acoustics be able to abundant performance.
The present invention passes through the loudness state of the decision listening areas such as the putting position of control system power output, audio amplifier, reaches the requirement of high definition.
Product of the present invention is concrete good sound richness also.In the time carrying out conference speech or speech use, must ensure the definition of language, if people can hear speaker's language, will affect the effect of speech.Therefore, in the time that designing, electroacoustics system to take into full account raising speech articulation: enough richness.Product of the present invention has the performing effect of good richness, can make voice full, simple and honest, and musical sound is melodious active.In electroacoustics system, only have by using sound equipment peripheral equipment voice signal is effectively processed and reasonably selected these measures of audio amplifier, the richness of sound can reach requirement.
Good product, good Environment Design, the installation and debugging that also needed.Suitable position, suitable size, place suitable equipment, debug out suitable effect according to environment and user's hobby, main application etc. also more important than the product of having bought to a certain extent.The present invention is directed to this demand, having researched and developed can be according to concrete engineering installation and debugging needs, can regulate within the specific limits product size (length and width absolute value and relative scale), make it easy to carry out rational installation and debugging, obtain preferably audio frequency and video effect.
The present invention for achieving the above object, provide a kind of height integrated, the multimedia video device for tone frequencies integrated approach of easy operating and construction;
The present invention also provides a kind of multimedia video device for tone frequencies integrated system said method, that can obtain 5.1 passage high-quality sound fields, light field that adopts.
For achieving the above object, technical scheme provided by the present invention is:
A kind of multimedia video device for tone frequencies integrated approach, is characterized in that, it comprises the following steps:
(1) prepare support: for the preparation of arranging, fix the rectangular flat hollow box-like support of follow up device entirety, four edges frame and the central region that forms this support is separately independently, the mutual hollow rectangle not connecting is box-like, concrete:
(11) prepare respectively rectangular flat hollow box-like upper bracket box, lower carriage box, left socle box, right support box, medium-height trestle box;
(12) prepare respectively eight sections of telescopic adjustment linkage sections that are used for regulating length between support box;
(2) prepare range of sound acoustics: prepare respectively preposition range of sound bass acoustic array, the range of sound, main sound channel left side acoustic array, the range of sound, main sound channel right side acoustic array, the rearmounted surround channel range of sound, left side sound equipment, the rearmounted surround channel range of sound, right side sound equipment, the center channels range of sound, top sound array sound device;
(21) preparing acoustics is specially: described preposition range of sound bass acoustic array, and it is provided with most and is woofer and the shared front shroud that matrix is arranged; Described main sound channel left side and the range of sound, right side acoustic array are respectively arranged with most and are loud speaker and the shared front shroud that yi word pattern is arranged; The rearmounted surround channel range of sound, left side sound equipment, the rearmounted surround channel range of sound, right side sound equipment are respectively arranged with one or more loud speakers, front shroud, leading note sound channel and opening; The center channels range of sound, described top sound array is provided with most and is loud speaker and the shared front shroud that yi word pattern is arranged; Wherein the direction of the rearmounted surround channel in left side and right side range of sound sound speaker towards support trailing flank or above, all the other loud speakers are all towards the leading flank of support.
(3) prepare display unit: prepare LED display or projection screen;
(4) prepare control device: preparation connects respectively acoustics, display unit and controls the control device of its work;
(5) assembling: described acoustics, display unit, control device are assembled to respectively on support, obtain the multimedia video device for tone frequencies integrated system with symmetrical distribution acoustics.
(51) upper bracket box, lower carriage box, left socle box, right support box, head and the tail are connected successively, and around the medium-height trestle box at middle part, form the integral support of rectangle;
(52) be separately positioned on the junction of described upper bracket box, lower carriage box, left socle box, right support box, it is connected to form respectively the integral support of rectangle with described support box;
(53) loud speaker of described preposition range of sound bass acoustic array and front shroud are arranged in the medium-height trestle box in centre position of described upper bracket box, lower carriage box, left socle box, inside common region level that right support box forms after being connected to each other and vertical direction; Loud speaker and the shared front shroud of the described range of sound, main sound channel left side acoustic array are arranged in described left socle box, the loud speaker of the described range of sound, main sound channel right side acoustic array and shared front shroud are arranged in described right support box; The loud speaker of described center channels range of sound sound array and shared front shroud are arranged in described upper bracket box; Loud speaker, front shroud, leading note sound channel and the opening of the rearmounted surround channel range of sound, described left side sound equipment are arranged in described left socle box; Loud speaker, front shroud, leading note sound channel and the opening of the rearmounted surround channel range of sound, described right side sound equipment are arranged in described right support box.
(54) loud speaker of the rearmounted surround channel in described left side and right side range of sound sound equipment, is separately positioned on the bottom of described left and right support box, and leading note sound channel is arranged on the middle part of described left and right support box, and opening is arranged on the middle and upper part of described left and right support box.
(541) described opening be set to one can along continuous straight runs deflection horn-like, the angle of its horizontal deflection is 0-75 °, when use, can adjust its deflection angle according to the shape and size of covered court.
(55) by described display unit, be the common region centre position, inside forming after LED display or projection screen are arranged on described upper bracket box, lower carriage box, left socle box, right support box and are connected to each other, the loud speaker of described preposition range of sound bass acoustic array and the dead ahead of front shroud.
(56) described control device is arranged in described lower carriage box, and its indicator light and switch key are exposed outside described lower carriage box.
A kind of multimedia video device for tone frequencies integrated system of preparing according to preceding method, it is characterized in that, it comprises that one for arranging, fix the rectangular flat hollow box-like support of follow up device entirety, and four edges frame and the central region that forms this support is separately independently, the mutual hollow rectangle not connecting is box-like; Also comprise the acoustics being formed by a preposition range of sound bass acoustic array, the range of sound, a main sound channel left side acoustic array, the range of sound, a main sound channel right side acoustic array, the rearmounted surround channel range of sound, left side sound equipment, the rearmounted surround channel range of sound, right side sound equipment, the center channels range of sound, a top sound array; Also comprise a display unit and a control device; Described acoustics, display unit, control device are assemblied in respectively on support, and described control device connects respectively described acoustics, display unit and controls its work, makes it have acoustics and the sound field of symmetrical distribution.
Described multimedia video device for tone frequencies integrated system, it is characterized in that, flat hollow box-like upper bracket box, lower carriage box, left socle box, right support box, medium-height trestle box that described support comprises, wherein upper bracket box, lower carriage box, left socle box, right support box head and the tail connect successively, around the orthogonal integral support of medium-height trestle box-like; Described preposition range of sound bass acoustic array, it is provided with most and is woofer and the shared front shroud that matrix is arranged, and is arranged in medium-height trestle box; Described main sound channel left side and the range of sound, right side acoustic array are respectively arranged with most and are loud speaker and the shared front shroud that yi word pattern is arranged, and are separately positioned in left and right support box; The rearmounted surround channel range of sound, left side sound equipment, the rearmounted surround channel range of sound, right side sound equipment are respectively arranged with a loud speaker, front shroud, leading note sound channel and opening, and are separately positioned in left and right support box; ; The center channels range of sound, described top sound array is provided with most and is loud speaker and the shared front shroud that yi word pattern is arranged, and is arranged in upper bracket box; Wherein the direction of the rearmounted surround channel in left side and right side range of sound sound speaker towards support trailing flank or above, all the other loud speakers are all towards the leading flank of support.
Described opening G, H be one can along continuous straight runs deflection horn-like, the angle of its horizontal deflection is 0-75 °, when use, can adjust its deflection angle according to the shape and size of covered court.
It also comprises eight sections of telescopic adjustment linkage sections for regulating length between support box, this telescopic adjustment linkage section is separately positioned on the junction of described upper bracket box, lower carriage box, left socle box, right support box, and it is connected to form respectively the integral support of rectangle with described support box.
The zone line that described display unit is arranged on upper bracket box, lower carriage box, left socle box, right support box after surrounding, the dead ahead of described medium-height trestle box; Described control device is arranged in described lower carriage box.
Beneficial effect of the present invention is: integrated approach operation provided by the invention is reasonable, is easy to realize; Product design provided by the invention rationally, be full of variety, integrated level is high, install, debugging is convenient.
Adopt product provided by the invention, can be according to audio-visual space layout, and the positional information of user in audio-visual space, and regulate accordingly the audio parameter of stereo set according to this information, particularly can regulate the phase mutual edge distance in each range of sound, around the opening in the range of sound, make user can both enjoy best sound equipment and appreciation effect in any position of audio-visual space.
Below in conjunction with drawings and Examples, the invention will be further described.
Brief description of the drawings
Fig. 1 is the regional structure distribution schematic diagram of the embodiment of the present invention;
Fig. 2 is the main TV structure schematic diagram of the embodiment of the present invention;
Fig. 3 is the cross-sectional view of A-A in Fig. 1;
Fig. 4 is the cross-sectional view of B-B in Fig. 1;
Fig. 5 is the structural representation of rearmounted surround channel range of sound sound equipment opening in Fig. 1.
Embodiment
Embodiment: referring to Fig. 1 to Fig. 5, a kind of multimedia video device for tone frequencies integrated approach that the present embodiment provides, it comprises the following steps:
(1) prepare support 1: for the preparation of arranging, fix the rectangular flat hollow box-like support 1 of follow up device entirety, the hollow rectangle that four edges frame region C, D, E, F and the central region A that forms this support is separately independently, do not connect is mutually box-like; Central region A is surrounded and is formed by four edges frame inner side, and its middle position is provided with a hollow rectangle district B; Wherein, B, C, D, E all form a range of sound, formation video area, A district, and formation control district of F district, entirety forms the acoustics of 5.1 passages and views and admires visual effect;
(11) prepare support box: prepare respectively rectangular flat hollow box-like upper bracket box 11, lower carriage box 12, left socle box 13, right support box 14, these four the flat hollow box-like common formation one central region A that surround, prepare in this intra-zone B position and a flat hollow medium-height trestle box 15 are set;
(12) prepare linkage section 2: preparation is used for regulating eight sections of telescopic adjustment linkage sections of length between described four support boxes 11,12,13,14 respectively, and wherein vertical direction linkage section is respectively 21,22,23,24 of X series; Horizontal direction linkage section is respectively Y-series: 25,26,27,28; Contracting regulates linkage section can adopt the material compositions such as coil tension spring, slideway, chute, parcel cloth, or other material and the structures with flexible effect are made;
(2) prepare range of sound acoustics 3: prepare respectively preposition range of sound bass acoustic array 31, the range of sound, main sound channel left side acoustic array 32, the range of sound, main sound channel right side acoustic array 33, the rearmounted surround channel range of sound, left side sound equipment 34, the rearmounted surround channel range of sound, right side sound equipment 35, the center channels range of sound, top sound array sound 36 devices;
(21) preparing acoustics 2 is specially: described preposition range of sound bass acoustic array 31, it is provided with most and is woofer 311 and the shared front shroud 312 that matrix is arranged, form preposition bass range of sound B, in the present embodiment, adopted 4 × 6 arrays; Loud speaker is all towards the leading flank of support 1.
The described range of sound, main sound channel left side acoustic array 32 is provided with most and is loud speaker 321 and the shared front shroud 322 that yi word pattern is arranged, and has adopted 4 loud speakers in the present embodiment, forms main sound channel left side range of sound D;
The range of sound, main sound channel right side acoustic array 33 is provided with most and is loud speaker 331 and the shared front shroud 332 that yi word pattern is arranged, and forms main sound channel right side range of sound E; Loud speaker is all towards the leading flank of support 1;
The rearmounted surround channel range of sound, left side sound equipment 34 is provided with a loud speaker 341, front shroud 342, leading note sound channel 343 and opening 344, forms left side rearmounted surround channel range of sound H; The direction of loud speaker 341 towards support trailing flank or above;
The rearmounted surround channel range of sound, right side sound equipment 35 is provided with a loud speaker 351, front shroud 352, leading note sound channel 353 and opening 354, forms left side rearmounted surround channel range of sound H; The direction of loud speaker 351 towards support 1 trailing flank or above.
The center channels range of sound, described top sound array 36 is provided with most and is loud speaker 361 and the shared front shroud 362 that yi word pattern is arranged, and forms mid-range of sound C; In the present embodiment, adopted 5 speaker combination, it is all towards the leading flank of support 1.
(3) prepare display unit 4: prepare LED display or projection screen 41, its shape, size are identical with central region A or smaller;
(4) prepare control device 5: preparation connects respectively acoustics 3, display unit 4 and controls the control device 5 of its work;
(5) assembling: described acoustics 3, display unit 4, control device 5 are assembled to respectively on support, obtain the multimedia video device for tone frequencies integrated system with symmetrical distribution acoustics, its concrete steps are as follows:
(51), by rectangular flat hollow box-like upper bracket box 11, lower carriage box 12, left socle box 13, right support box 14, head and the tail are in turn connected to form the integral support 1 of rectangle; Medium-height trestle box 15 is arranged on to the position, B region, centre position of a-quadrant;
(52) by described telescopic adjustment linkage section 21-28, it is separately positioned on the junction of described upper bracket box 11, lower carriage box 12, left socle box 13, right support box 14, it is connected to form respectively the integral support 1 of rectangle with described support box, and by separated each support box, avoid resonance and cross-talk;
(53) loud speaker 311 and the front shroud 312 of described preposition range of sound bass sound equipment 31 arrays are arranged in described medium-height trestle box 15; Loud speaker 321 and the shared front shroud 322 of the described range of sound, main sound channel left side sound equipment 32 arrays are arranged in described left socle box 13, the loud speaker 331 of the described range of sound, main sound channel right side acoustic array 33 and shared front shroud 332 are arranged in described right support box 14; The loud speaker 361 of described center channels range of sound sound array 36 and shared front shroud 362 are arranged in described upper bracket box 11; Loud speaker 341, front shroud 342, leading note sound channel 343 and the opening G of the rearmounted surround channel range of sound, described left side sound equipment 34 are arranged in described left socle box 13; Loud speaker 351, front shroud 352, leading note sound channel 353 and the opening H of the rearmounted surround channel range of sound, described right side sound equipment 35 are arranged in described right support box 14;
(54) loud speaker 341 of the rearmounted surround channel in described left side range of sound sound equipment 34, is arranged on the bottom of described left socle box 13, and its leading note sound channel 343 is arranged on the middle part of described left socle box 13, and opening H is arranged on the middle and upper part of described left socle box 13;
The loud speaker 351 of the rearmounted surround channel range of sound, described right side sound equipment 35, is arranged on the bottom of described right support box 14; Its leading note sound channel 353 is arranged on the middle part of described right support box 14, and opening G is arranged on the middle and upper part of described right support box 14;
By described opening G, H be all set to one can along continuous straight runs deflection horn-like, the angle of its horizontal deflection is 0-75 °, when use, can adjust its deflection angle according to the shape and size of covered court, to reach best audio.
(55) by described display unit 4, be the centre position of the inside common region A that forms after LED display or projection screen 41 are arranged on described upper bracket box 11, lower carriage box 12, left socle box 13, right support box 14 and are connected to each other, the loud speaker 311 of described preposition range of sound bass acoustic array 31 and the dead ahead of front shroud 312;
(56) described control device 5 is arranged in described lower carriage box 12, and its indicator light 51 and switch key 52 are exposed outside described lower carriage box 12.
When support 1 arranges X, Y-series telescopic adjustment section simultaneously, the angle, 16, four, turning that support 1 is also provided with connection two telescopic sections is provided with 4 turnings 16 altogether; And when ought being only provided with a serial telescopic adjustment section, two supports can directly connect by telescopic adjustment section, and without turning 16 is set.
By above-mentioned steps, make all each self-forming one ranges of sound of B, C, D, E, formation video area, A district, formation control district of F district, entirety forms the acoustics of 5.1 passages and views and admires visual effect.
Concrete B district forms the preposition range of sound, and C district forms the front mid-range of sound, and D district forms the main sound channel range of sound, left side and left back putting around the range of sound, and E district forms the range of sound, main sound channel right side and right back putting around the range of sound.Left socle box 13, right support box 14 are in providing carrier for main sound channel loud speaker, its inner passage has formed rearmounted around raising one's voice, the sound that rearmounted circulating loudspeaker sends, by opening G, the H output can left and right horizontal deflection regulating, with adjust output sound around range; In other embodiment, opening G, H also can carry out vertical direction deflection regulate, its adjustable-angle scope is 0-45 °, with adjust output sound around the degree of depth.
In actual installation use procedure, owing to being provided with telescopic adjustment linkage section between each support box, can be according to the shape and size in place, specifically regulate the phase mutual edge distance in each range of sound, and adjustment ring is around sound channel and the opening direction in the range of sound, to reach best audio visual effect.
A kind of multimedia video device for tone frequencies integrated system of preparing according to preceding method, it comprises that one for arranging, fix the rectangular flat hollow box-like support 1 of follow up device entirety, four edges frame and the central region A that forms this support is separately independently, the mutual hollow rectangle not connecting is box-like, specifically comprise flat hollow box-like upper bracket box 11, lower carriage box 12, left socle box 13, right support box 14, its head and the tail are in turn connected to form the integral support 1 of rectangle; The central region A inside of this support 1 is provided with a flat hollow medium-height trestle box 15; It also comprises the acoustics 3 that a preposition range of sound bass acoustic array 31, the range of sound, a main sound channel left side acoustic array 32, the range of sound, a main sound channel right side acoustic array 33, the rearmounted surround channel range of sound, left side sound equipment 34, the rearmounted surround channel range of sound, right side sound equipment 35, the center channels range of sound, a top sound array 36 form; Also comprise a display unit 4 and a control device 5; Described acoustics 3, display unit 4, control device 5 are assemblied in respectively on support 1, and described control device 5 connects respectively described acoustics 3, display unit 4 and controls its work, makes it have acoustics and the sound field of symmetrical distribution.
Described preposition range of sound bass acoustic array 31, it is provided with most and is woofer 311 and the shared front shroud 312 that matrix is arranged, in the present embodiment, be 4 × 6 totally 24 loud speakers, it is all arranged in the flat hollow medium-height trestle box 15 of described central region A inside, and share front shroud 312 is the front shroud of flat hollow medium-height trestle box 15 simultaneously; Loud speaker 311 is all fixed on this shared front shroud 312, and horn mouth arranges forward;
The range of sound, described main sound channel left side sound equipment 32 arrays are provided with most and are loud speaker 321 and the shared front shrouds 322 that yi word pattern is arranged, and are 1 × 4 totally 4 loud speakers in the present embodiment; It is all arranged in described left socle box 13, and share front shroud 322 is the front shroud of flat hollow left socle box 13 simultaneously; Loud speaker 321 is all fixed on this shared front shroud 322, and horn mouth arranges forward;
The range of sound, main sound channel right side sound equipment 33 arrays are respectively arranged with most and are loud speaker 331 and the shared front shrouds 332 that yi word pattern is arranged, and are 1 × 4 totally 4 loud speakers in the present embodiment; It is all arranged in described left socle box 14, and share front shroud 332 is the front shroud of flat hollow right support box 14 simultaneously; Loud speaker 331 is all fixed on this shared front shroud 332, and horn mouth arranges forward;
The rearmounted surround channel range of sound, left side sound equipment 34 is provided with one or more loud speakers 341, lower cover 342, leading note sound channel 343 and opening H; It is all arranged in described left socle box 13, and lower cover 322 is the lower cover of flat hollow left socle box 13 simultaneously; Loud speaker 341 is fixed on this lower cover 342, and horn mouth upwards arranges; Or in other embodiments, loud speaker 341 is fixed on and shares on front shroud 322, and horn mouth arranges backward;
The rearmounted surround channel range of sound, right side sound equipment 35 is provided with one or more loud speakers 351, lower cover 352, leading note sound channel and opening G, and its structure and left side rearmounted surround channel range of sound sound equipment 34 distributes axisymmetricly; It is all arranged in described right support box 14, and lower cover 352 is the lower cover of flat hollow left socle box 13 simultaneously; Loud speaker 351 is fixed on this lower cover 352, and horn mouth upwards arranges; Or in other embodiments, loud speaker 351 is fixed on and shares on front shroud 332, and horn mouth arranges backward;
Described opening G, H be one can along continuous straight runs deflection horn-like passage, and it is inner small and outside big that opening is, the angle of its integral level deflection is 0-75 °, its perforated wall is the inclined-plane expanding gradually to both sides, when use, can adjust its deflection angle according to the shape and size of covered court.
The center channels range of sound, described top sound 36 arrays are provided with most and are loud speaker 361 and the shared front shrouds 362 that yi word pattern is arranged, and are 1 × 5 totally 5 loud speakers in the present embodiment; It is all arranged in described upper bracket box 11, and share front shroud 362 is the front shroud of flat hollow upper bracket box 11 simultaneously; Loud speaker 361 is fixed on this front shroud 362, and horn mouth arranges forward.
Described control device 5 is arranged in described lower carriage box 12, and its indicator light 51 and switch key 52 expose outside described lower carriage box 12.
Described display unit 4, be LED display or projection screen 41, or OLED display screen, the centre position of the inside common region A forming after being arranged on described upper bracket box 11, lower carriage box 12, left socle box 13, right support box 14 and being connected to each other, the dead ahead of region B is also the loud speaker 311 of described preposition range of sound bass acoustic array 31 and the dead ahead of front shroud 312 simultaneously.
In the present embodiment, B, C, D, E all form a range of sound, formation video area, A district, and formation control district of F district, entirety forms the acoustics of 5.1 passages and views and admires visual effect.
Concrete B district forms the preposition range of sound, and C district forms the mid-range of sound, and D district forms the main sound channel range of sound, left side and left back putting around the range of sound, and E district forms the range of sound, main sound channel right side and right back putting around the range of sound.Left socle box 13, right support box 14 are in providing carrier for main sound channel loud speaker, its inner passage has formed rearmounted around raising one's voice, the sound that rearmounted circulating loudspeaker sends, by opening G, the H output can left and right horizontal deflection regulating, with adjust output sound around range; In other embodiment, opening G, H also can carry out vertical direction deflection regulate, its adjustable-angle scope is 0-45 °, with adjust output sound around the degree of depth.
It also comprises eight sections of telescopic adjustment linkage sections 2 for regulating phase mutual edge distance between each support box, this telescopic adjustment linkage section is separately positioned on the junction of described upper bracket box 11, lower carriage box 12, left socle box 13, right support box 14, and it is connected to form respectively the integral support 1 of rectangle with described support box; Contracting regulates linkage section 2 can adopt the material compositions such as coil tension spring, slideway, chute, parcel cloth, or other material and the structures with flexible effect are made.The present embodiment specifically comprises 21,22,23,24,25,26,27,28 8 sections of telescopic adjustment linkage sections of X series (horizontal direction adjusting) and Y-series (vertical direction adjusting); By regulating size and the Aspect Ratio between the each support of its flexible adjusted size, to obtain better place adaptability.When X, Y-series telescopic adjustment section are set at the same time, the angle, 16, four, turning that support 1 is also provided with connection two telescopic sections is provided with 4 turnings 16 altogether; And when ought being only provided with a serial telescopic adjustment section, two supports can directly connect by telescopic adjustment section, and without turning 16 is set.
In actual installation use procedure, according to the shape and size in place, by regulating the flexible size of the telescopic adjustment linkage section arranging between each support box, the concrete phase mutual edge distance (absolute dimension and relatively Aspect Ratio) that regulates each range of sound, and adjustment ring is around sound channel and the opening direction in the range of sound, to reach best audio visual effect; Meanwhile, the telescopic adjustment linkage section arranging between each support box, by isolation mutually between each support box, has avoided the scene of cross-talk each other between each range of sound.
As described in the above embodiment the present invention, adopt step same or similar with it or structure and other multimedia video device for tone frequencies integrated approach and system of obtaining, all in protection range of the present invention.
Claims (9)
1. a multimedia video device for tone frequencies integrated approach, is characterized in that, it comprises the following steps:
(1) prepare support: for the preparation of arranging, fix the rectangular flat hollow box-like support of follow up device entirety, four edges frame and the central region that forms this support is separately independently, the mutual hollow rectangle not connecting is box-like; Prepare respectively rectangular flat hollow box-like upper bracket box, lower carriage box, left socle box, right support box; Preparation is used for regulating eight sections of telescopic adjustment linkage sections of phase mutual edge distance between support box respectively;
(2) prepare range of sound acoustics: prepare respectively preposition range of sound bass acoustic array, the range of sound, main sound channel left side acoustic array, the range of sound, main sound channel right side acoustic array, the rearmounted surround channel range of sound, left side sound equipment, the rearmounted surround channel range of sound, right side sound equipment, the center channels range of sound, top acoustic array device;
(3) prepare display unit: prepare LED display or projection screen;
(4) prepare control device: preparation connects respectively acoustics, display unit and controls the control device of its work;
(5) assembling: described acoustics, display unit, control device are assembled to respectively on support, acquisition has the multimedia video device for tone frequencies integrated system of symmetrical distribution acoustics, described upper bracket box, lower carriage box, left socle box, right support box head and the tail is in turn connected to form to the integral support of rectangle; Described telescopic adjustment linkage section is separately positioned on to the junction of described upper bracket box, lower carriage box, left socle box, right support box, it is connected to form respectively the integral support of rectangle with described support box, by regulating size and the Aspect Ratio between the each support of its flexible adjusted size.
2. multimedia video device for tone frequencies integrated approach according to claim 1, is characterized in that, described step (2) specifically comprises the steps:
(21) preparing acoustics is specially: described preposition range of sound bass acoustic array, and it is provided with most and is woofer and the shared front shroud that matrix is arranged; Described main sound channel left side and the range of sound, right side acoustic array are respectively arranged with most and are loud speaker and the shared front shroud that yi word pattern is arranged; The rearmounted surround channel range of sound, left side sound equipment, the rearmounted surround channel range of sound, right side sound equipment are respectively arranged with one or more loud speakers, front shroud, leading note sound channel and opening; The center channels range of sound, described top acoustic array is provided with most and is loud speaker and the shared front shroud that yi word pattern is arranged; Wherein the direction of the rearmounted surround channel in left side and right side range of sound sound speaker towards support trailing flank or above, all the other loud speakers are all towards the leading flank of support.
3. multimedia video device for tone frequencies integrated approach according to claim 1, is characterized in that, described step (5) specifically comprises the steps:
(53) loud speaker of described preposition range of sound bass acoustic array and front shroud are arranged on to inside common region level that described upper bracket box, lower carriage box, left socle box, right support box form after being connected to each other and the centre position of vertical direction; Loud speaker and the shared front shroud of the described range of sound, main sound channel left side acoustic array are arranged in described left socle box, the loud speaker of the described range of sound, main sound channel right side acoustic array and shared front shroud are arranged in described right support box; The loud speaker of described center channels range of sound acoustic array and shared front shroud are arranged in described upper bracket box; Loud speaker, front shroud, leading note sound channel and the opening of the rearmounted surround channel range of sound, described left side sound equipment are arranged in described left socle box; Loud speaker, front shroud, leading note sound channel and the opening of the rearmounted surround channel range of sound, described right side sound equipment are arranged in described right support box.
4. multimedia video device for tone frequencies integrated approach according to claim 1, is characterized in that, described step (5) specifically comprises the steps:
(54) loud speaker of the rearmounted surround channel in described left side and right side range of sound sound equipment, is separately positioned on the bottom of described left and right support box, and leading note sound channel is arranged on the middle part of described left and right support box, and opening is arranged on the middle and upper part of described left and right support box.
5. multimedia video device for tone frequencies integrated approach according to claim 4, is characterized in that, described step (54) specifically comprises the steps:
(541) described opening be set to one can along continuous straight runs deflection horn-like, the angle of its horizontal deflection is 0-75 °, when use, can adjust its deflection angle according to the shape and size of covered court.
6. multimedia video device for tone frequencies integrated approach according to claim 1, is characterized in that, described step (5) specifically comprises the steps:
(55) by described display unit, be the common region centre position, inside forming after LED display or projection screen are arranged on described upper bracket box, lower carriage box, left socle box, right support box and are connected to each other, the loud speaker of described preposition range of sound bass acoustic array and the dead ahead of front shroud.
7. multimedia video device for tone frequencies integrated approach according to claim 1, is characterized in that, described step (5) specifically comprises the steps:
(56) described control device is arranged in described lower carriage box, and its indicator light and switch key are exposed outside described lower carriage box.
8. a multimedia video device for tone frequencies integrated system of preparing according to the described method of one of claim 1-7, it is characterized in that, it comprises that one for arranging, fix the rectangular flat hollow box-like support of follow up device entirety, and four edges frame and the central region that forms this support is separately independently, the mutual hollow rectangle not connecting is box-like; Also comprise the acoustics being formed by a preposition range of sound bass acoustic array, the range of sound, a main sound channel left side acoustic array, the range of sound, a main sound channel right side acoustic array, the rearmounted surround channel range of sound, left side sound equipment, the rearmounted surround channel range of sound, right side sound equipment, the center channels range of sound, a top acoustic array; Also comprise a display unit and a control device; Described acoustics, display unit, control device are assemblied in respectively on support, and described control device connects respectively described acoustics, display unit and controls its work, makes it have acoustics and the sound field of symmetrical distribution; Flat hollow box-like upper bracket box, lower carriage box, left socle box, right support box, medium-height trestle box that described support comprises, support box head and the tail connect successively up and down, around the medium-height trestle box that is arranged on its centre, form the integral support of a rectangle; Described preposition range of sound bass acoustic array, it is provided with most and is woofer and the shared front shroud that matrix is arranged; Described main sound channel left side and the range of sound, right side acoustic array are respectively arranged with most and are loud speaker and the shared front shroud that yi word pattern is arranged; The rearmounted surround channel range of sound, left side sound equipment, the rearmounted surround channel range of sound, right side sound equipment are respectively arranged with one or more loud speakers, front shroud, leading note sound channel and opening; The center channels range of sound, described top acoustic array is provided with most and is loud speaker and the shared front shroud that yi word pattern is arranged; Wherein the direction of the rearmounted surround channel in left side and right side range of sound sound speaker after support or above, all the other loud speakers are all before support; The opening in the rearmounted surround channel of the described described left and right side range of sound be one can along continuous straight runs deflection horn-like, the angle of its horizontal deflection is 0-75 °, when use, can adjust its deflection angle according to the shape and size of covered court.
9. multimedia video device for tone frequencies integrated system according to claim 8, it is characterized in that, it also comprises eight sections of telescopic adjustment linkage sections for regulating phase mutual edge distance between support box, this telescopic adjustment linkage section is separately positioned on the junction of described upper bracket box, lower carriage box, left socle box, right support box, and it is connected to form respectively the integral support of rectangle with described support box; The zone line that described display unit is arranged on upper bracket box, lower carriage box, left socle box, right support box after surrounding, the dead ahead of described medium-height trestle box; Described control device is arranged in described lower carriage box.
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| TWI568274B (en) * | 2014-06-18 | 2017-01-21 | Xin-Ping Su | Speaker system integration device |
| CN105282652B (en) * | 2014-06-23 | 2019-01-15 | 苏新平 | A kind of loudspeaker integrating apparatus |
| CN105628170A (en) * | 2014-11-06 | 2016-06-01 | 广州汽车集团股份有限公司 | Method for measuring and calculating reverberation time in vehicle |
| EP3128762A1 (en) * | 2015-08-03 | 2017-02-08 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Soundbar |
| CN111535470B (en) * | 2020-05-09 | 2021-11-19 | 广州大学 | Method and system for improving indoor language definition |
| CN113687391A (en) * | 2021-09-13 | 2021-11-23 | 中国信息通信研究院 | Method and device for rapidly testing satellite navigation positioning performance of wireless terminal |
| CN114442980B (en) * | 2022-01-21 | 2024-01-30 | 珠海格力电器股份有限公司 | Control method and control device of video and audio equipment, storage medium and electronic device |
| CN114979926A (en) * | 2022-05-11 | 2022-08-30 | 浙江同伟信息技术有限公司 | Portable sound field reverberation monitoring module based on bluetooth transmission |
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Free format text: CORRECT: ADDRESS; FROM: 523800 DONGGUAN, GUANGDONG PROVINCE TO: 523000 DONGGUAN, GUANGDONG PROVINCE |
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Effective date of registration: 20140115 Address after: 523000 28 elephant Road, horizontal village, Dalang Town, Guangdong, Dongguan Applicant after: 3G Audio Technology Co., Ltd. Applicant after: Elder Audio Manufacture Co., Ltd. Address before: 523800 Guangdong province Dongguan Dalang town horizontal village Xiangshan industry city elephant and road 28 Applicant before: Elder Audio Manufacture Co., Ltd. |
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Address after: 523000 building 3, No. 1, Nanqi street, Qiaotou East Road, Qiaotou town, Dongguan City, Guangdong Province Patentee after: 3G AUDIO TECHNOLOGY Co.,Ltd. Patentee after: Dongguan Yida audio Manufacturing Co., Ltd Address before: 523000 No. 28, level village, Xiang He road, Dalang Town, Dongguan, Guangdong Patentee before: 3G AUDIO TECHNOLOGY Co.,Ltd. Patentee before: Dongguan Yida audio Manufacturing Co., Ltd |
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