CN102447996B - A kind of stereo audio system and audio-visual equipment - Google Patents
A kind of stereo audio system and audio-visual equipment Download PDFInfo
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- CN102447996B CN102447996B CN201010501150.2A CN201010501150A CN102447996B CN 102447996 B CN102447996 B CN 102447996B CN 201010501150 A CN201010501150 A CN 201010501150A CN 102447996 B CN102447996 B CN 102447996B
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Abstract
The invention provides a kind of stereo audio system and audio-visual equipment, the program source module of described stereo audio system is for extracting and exporting the sound source signal in program source.Audio decoder module is for decoding sound source signal output audio signal.Module of raising one's voice comprises and is arranged at above user and multiple loud speakers of surrounding, corresponds respectively to multiple different sound channel.Power amplifier module comprises multiple separate amplifirer, for promoting multiple loud speakers of raising one's voice in module respectively.Audio signal distribution module is used for point audio signal to the multiple amplifirers in power amplifier module, thus drives amplifirer to promote the loud speaker sounding of corresponding sound channel.Central processing unit is used for controlling audio signal distribution module according to the original acoustic field signal in sound source signal.Stereo audio system provided by the invention and audio-visual equipment, array of raising one's voice is arranged at above user and surrounding, thus builds the better stereophonic field of effect, and makes stereophonic field coherent, linear.
Description
Technical field
The present invention relates to audio visual technology field, particularly relate to a kind of stereo audio system and audio-visual equipment.
Background technology
Along with the development of electronics, computer technology, video technique in audio-visual equipment is due to the improvement of video algorithm (as MEPG-4, H.264 etc.), video equipment (as LCD TV, LED television, 3D TV, IMAX screen etc.), and user's experience visually has been greatly improved and has improved.But the still existing defects of the Audiotechnica in audio-visual equipment, is difficult to reduce the effect of nature sound source, the audio experience of high-quality cannot be provided for user.
Existing audio system adopts the technology such as binary channels, 5.1 passages and 7.1 passages usually, the solid of simulation reconstruction natural sound source, surrounding effect.But the solid that audio system presents, surrounding effect depend on the position of listener relative to sound channel, but the distribution of the sound channel of dual track, 5.1 sound channels and 7.1 sound channel technology is even all not, and user cannot obtain real audio experience.Especially, when there is the sound generation source of movement in TV programme, film, sound field cannot keep linking up, linearly.
Secondly, adopt the best of the audio system of dual track, 5.1 sound channels or 7.1 sound channel technology to listen to position area less, be not easy to many people and listen to, when making viewing film or listen to music, cannot ensure that everyone can obtain optimum experience.In addition, higher to installation environment, technical requirement when the limitation listening to position area due to the best causes existing audio system to be applied to home theater equipment or cinema screening equipment, do not utilize marketing and application.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is to provide a kind of stereo audio system and audio-visual equipment, can build the stereophonic field of better effects if.
The invention provides a kind of stereo audio system, comprise program source module, audio decoder module, module of raising one's voice, power amplifier module, audio signal distribution module and central processing unit.Program source module for extracting the sound source signal in program source, and exports described sound source signal.Audio decoder module is for described sound source signal of decoding, and output audio signal.Module of raising one's voice comprises and is arranged at above user and multiple loud speakers of surrounding, corresponds respectively to multiple different sound channel.Power amplifier module comprises multiple separate amplifirer, for multiple loud speakers of raising one's voice in module described in promoting respectively.Audio signal distribution module for distributing the multiple amplifirers in described audio signal to described power amplifier module, thus drives amplifirer to promote the loud speaker sounding of corresponding sound channel.Central processing unit is used for controlling described audio signal distribution module according to the original acoustic field signal in described sound source signal.
As a further improvement on the present invention, described audio decoder module also comprises volume control unit and tone regulon.Wherein, volume control unit is for regulating the volume of described audio signal.Tone regulon is for regulating the tone of described audio signal.
As a further improvement on the present invention, described power amplifier module comprises efficient class-D amplifier.
As a further improvement on the present invention, described audio signal distribution module also comprises audio signal pre-amplifier unit, for carrying out pre-amplification to described audio signal.
As a further improvement on the present invention, module of raising one's voice described in be divided into be arranged at above user on put array of raising one's voice, be arranged at the preposition array of raising one's voice of user's surrounding, rearmounted array of raising one's voice, a left side put raise one's voice array and the right side and put array of raising one's voice.
As a further improvement on the present invention, described preposition array of raising one's voice, rearmounted array of raising one's voice, a left side are put raise one's voice array and the right side and are put array of raising one's voice and be square and be distributed in user's surrounding.
As a further improvement on the present invention, array of raising one's voice is put on described for circular.
As a further improvement on the present invention, module of raising one's voice described in is divided into puts raise one's voice array and ring-type and to raise one's voice array.Wherein, above put array of raising one's voice to be arranged at above user.Ring-type array of raising one's voice is arranged at user's surrounding.
As a further improvement on the present invention, put raise one's voice display and ring-type on described and raise one's voice array for circular.
Present invention also offers a kind of audio-visual equipment, comprise program source module, audio decoder module, module of raising one's voice, power amplifier module, audio signal distribution module, central processing unit, Video decoding module and video display.Program source module is for the sound source signal that extracts in program source and look source signal, and exports described sound source signal and look source signal.Audio decoder module is for described sound source signal of decoding, and output audio signal.Module of raising one's voice comprises and is arranged at above user and multiple loud speakers of surrounding, corresponds respectively to multiple different sound channel.Power amplifier module comprises multiple separate amplifirer, for multiple loud speakers of raising one's voice in module described in promoting respectively.Audio signal distribution module for distributing the multiple amplifirers in described audio signal to described power amplifier module, thus drives amplifirer to promote the loud speaker sounding of corresponding sound channel.Central processing unit is used for controlling described audio signal distribution module according to the original acoustic field signal in described sound source signal.Video decoding module looks source signal described in decoding, and outputting video signal.Video display is used for according to described vision signal display video.
As a further improvement on the present invention, described audio decoder module also comprises volume control unit and tone regulon.Wherein, volume control unit is for regulating the volume of described audio signal.Tone regulon is for regulating the tone of described audio signal.
As a further improvement on the present invention, described power amplifier module comprises efficient class-D amplifier.
As a further improvement on the present invention, described audio signal distribution module also comprises audio signal pre-amplifier unit, for carrying out pre-amplification to described audio signal.
As a further improvement on the present invention, module of raising one's voice described in be divided into be arranged at above user on put array of raising one's voice, be arranged at the preposition array of raising one's voice of user's surrounding, rearmounted array of raising one's voice, a left side put raise one's voice array and the right side and put array of raising one's voice.
As a further improvement on the present invention, described preposition array of raising one's voice, rearmounted array of raising one's voice, a left side are put raise one's voice array and the right side and are put array of raising one's voice and be square and be distributed in user's surrounding.
As a further improvement on the present invention, array of raising one's voice is put on described for circular.
As a further improvement on the present invention, module of raising one's voice described in is divided into puts raise one's voice array and ring-type and to raise one's voice array.Wherein, above put array of raising one's voice to be arranged at above user.Ring-type array of raising one's voice is arranged at user's surrounding.
As a further improvement on the present invention, put raise one's voice display and ring-type on described and raise one's voice array for circular.
Stereo audio system provided by the invention and audio-visual equipment, by central processing unit control multiple independently amplifirer promote to be arranged at above user and surrounding array of raising one's voice in the loud speaker of corresponding sound channel, thus build the better stereophonic field of effect, and make stereophonic field coherent, linear.
Accompanying drawing explanation
Fig. 1 is the circuit module signal of stereo audio system provided by the invention;
Fig. 2 is the schematic diagram of a kind of execution mode of module of raising one's voice in stereo audio system provided by the invention;
Fig. 3 is the schematic diagram of the another kind of execution mode of module of raising one's voice in stereo audio system provided by the invention;
Fig. 4 is the circuit module schematic diagram of audio-visual equipment provided by the invention.
Embodiment
Be described in further detail below in conjunction with accompanying drawing and embodiments of the present invention.
Fig. 1 is the circuit module schematic diagram of stereo audio system 100 provided by the invention.As shown in Figure 1, stereo audio system 100 comprises program source module 110, audio decoder module 120, central processing unit 130, audio signal distribution module 140, power amplifier module 150 and loudspeaker module 160.
Wherein, program source module 110 for extracting the sound source signal in program source, and exports described sound source signal to audio decoder module 120 and CPU module 130.Wherein, described sound source signal comprises original sound field information.
Audio decoder module 120 is for described sound source signal of decoding, and output audio signal is to audio signal distribution module 140.In other embodiments of the present invention, audio decoder module 120 also comprises volume control unit 121 and tone control unit 122.Wherein, the volume of audio signal of volume control unit 121 for regulating audio decoder module 120 and exporting.The tone of audio signal of tone regulon 122 for regulating audio decoder module 120 and exporting.
Power amplifier module 150 comprises multiple amplifirer, corresponds respectively to multiple different sound channel, as the amplifirer 1-N(N in Fig. 1 be greater than 2 natural number) respectively corresponding sound channel 1-N.Wherein, the amplifirer 1-N in power amplifier module 150 is separate, can turn off respectively, opens and adjust power amplifier multiple, comprises efficient class-D amplifier.In the present embodiment, N is set to 100.
Module of raising one's voice 160 comprises the multiple separate loud speaker around distribution, corresponds respectively to multiple different sound channel, as loud speaker 1-N in Fig. 1.Wherein, the loud speaker 1-N in module of raising one's voice 160 is corresponding sound channel 1-N respectively, is promoted respectively by the amplifirer 1-N in power amplifier module 150.
Audio signal distribution module 140 for dividing audio signal to the amplifirer 1-N in power amplifier module 150, thus drives amplifirer 1-N to promote the loud speaker 1-N sounding of corresponding sound channel.In other embodiments of the present invention, audio signal distribution module 140 also comprises audio signal pre-amplifier unit, carries out pre-amplification for the audio signal exported audio decoder module 120.
Central processing unit 130 is for controlling audio distribution module 140 points of audio signal to the amplifirer 1-N in power amplifier module 150 according to the original acoustic field signal in described sound source signal.
Fig. 2 is a kind of schematic diagram of execution mode of module 160 of raising one's voice in stereo audio system 100 provided by the invention.As shown in Figure 2, module 160 of raising one's voice in stereo audio system 100 comprises the preposition array 161 of raising one's voice being arranged at user's surrounding, rearmounted array 162 of raising one's voice, a left side put raise one's voice array 163 and the right side put array 164 of raising one's voice, be arranged at above user on put array 165 of raising one's voice.Wherein, preposition array 161 of raising one's voice, rearmounted array 162 of raising one's voice, a left side are put raise one's voice array 163 and the right side and are put array 164 of raising one's voice and be square and be distributed in user's surrounding, above put array 165 of raising one's voice and are arranged at directly over user.In the present embodiment, array 165 of raising one's voice above is put for circular.Multiple loud speaker 1-N in module of raising one's voice 160 are distributed in preposition array 161 of raising one's voice, array 163 of raising one's voice is put on rearmounted array 162 of raising one's voice, a left side, the right side put raise one's voice array 164 and on put and raise one's voice in array 165, promoted by the multiple amplifirer 1-N in power amplifier module 150 respectively.
In the present embodiment, the program source module 110 in stereo audio system 100 is extracted sound source signal and is exported audio decoder module 120 and central processing unit 130 to from program source.Audio decoder module 120 is decoded sound source signal output to audio signal distribution module 140.Central processing unit 130 controls audio signal distribution module 140 according to the original acoustic field signal in sound source signal and audio signal is dispensed to multiple amplifirers in power amplifier module 150, thus drives multiple amplifirer to promote to raise one's voice the loud speaker sounding of corresponding sound channel in array of respectively raising one's voice in module 160.Due to preposition array 161 of raising one's voice, rearmounted array 162 of raising one's voice, a left side put array 163 of raising one's voice, the right side put array 164 of raising one's voice be square be distributed in user's surrounding, on put array 165 of raising one's voice and be arranged at above user, therefore the range of voice of stereo audio system 100 comprises user's surrounding, overhead, thus farthest builds the better stereophonic field of effect.Simultaneously, the central processing unit 130 multiple amplifirers controlled in power amplifier module 150 promote multiple loud speaker independence sounding of raising one's voice in module 160 respectively, make stereophonic field more coherent, linear, thus the complicated source of sound reduced better in program source or motion source of sound.
Fig. 3 is the schematic diagram of another kind of execution mode of module 160 of raising one's voice in stereo audio system 100 provided by the invention.As shown in Figure 3, module 160 of raising one's voice in stereo audio system 100 comprise annular raise one's voice array 161 and on put array 162 of raising one's voice.Wherein, ring-type array 161 of raising one's voice is arranged at user's surrounding, above puts array 162 of raising one's voice and is arranged at directly over user.In the present embodiment, ring-type raise one's voice array 161 and on put the array 162 of raising one's voice for circular.Loud speaker 1-N in module of raising one's voice 160 be distributed in ring-type raise one's voice array 161 and on put and raise one's voice in array 162, promoted by the amplifirer 1-N in power amplifier module 150 respectively.
In the present embodiment, the program source module 110 in stereo audio system 100 is extracted sound source signal and is exported audio decoder module 120 and central processing unit 130 to from program source.Audio decoder module 120 is decoded sound source signal output to audio signal distribution module 140.Central processing unit 130 controls audio signal distribution module 140 according to the original acoustic field signal in sound source signal and audio signal is dispensed to multiple amplifirers in power amplifier module 150, thus drives multiple amplifirer to promote to raise one's voice the loud speaker sounding of corresponding sound channel in array of respectively raising one's voice in module 160.Due to ring-type raise one's voice array 161 be arranged at user's surrounding, on put array 162 of raising one's voice and be arranged at above user, therefore the range of voice of stereo audio system 100 comprises user's surrounding, overhead, thus farthest builds real stereophonic field.In addition, because ring-type in Fig. 3 raises one's voice array for circular, the distribution of its sound channel puts than array 161 of raising one's voice preposition in Fig. 2, rearmounted array 162 of raising one's voice, a left side array 163 of raising one's voice, the right side puts that array 164 of raising one's voice forms square evenly.Therefore, the stereophonic field effect of the execution mode of the module 160 of raising one's voice shown in Fig. 3 is better than Fig. 2.Simultaneously, the central processing unit 130 multiple amplifirers controlled in power amplifier module 150 promote multiple loud speaker independence sounding of raising one's voice in module 160 respectively, make stereophonic field more coherent, linear, thus the complicated source of sound reduced better in program source or motion source of sound.
Fig. 4 is the circuit module schematic diagram of audio-visual equipment 200 provided by the invention.As shown in Figure 4, stereo audio-visual equipment 200 comprises program source module 210, audio decoder module 220, central processing unit 230, audio signal distribution module 240, power amplifier module 250, loudspeaker module 260, Video decoding module 270 and video display 280.Wherein, the program source module 210 shown in Fig. 4, audio decoder module 220, central processing unit 230, audio signal distribution module 240, power amplifier module 250 and loudspeaker module 260 form stereo audio system 100 as shown in Figure 1, therefore no longer repeat.Program source module shown in Fig. 4 210 is with the difference of program source module 110 shown in Fig. 1: program source module 210 also exports Video decoding module 270 depending on source signal for extracting in program source.The vision signal that Video decoding module 270 exports for decoded program source module 210, and outputting video signal is to video display 280.The vision signal display video that video display 280 exports according to Video decoding module 270, thus coordinate stereo audio system to be the audiovisual service that user builds stereophonic field better effects if.
Stereo audio system provided by the invention and audio-visual equipment, by central processing unit control multiple independently amplifirer promote to be arranged at above user and surrounding array of raising one's voice in the loud speaker of corresponding sound channel, thus build the better stereophonic field of effect, and make stereophonic field coherent, linear.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (6)
1. a stereo audio system, is characterized in that, comprising:
Program source module, for the sound source signal that extracts in program source and look source signal, and exports described sound source signal and looks source signal;
Audio decoder module, for described sound source signal of decoding, and output audio signal;
To raise one's voice module, comprise and be arranged at above user and multiple loud speakers of surrounding, correspond respectively to multiple different sound channel;
Power amplifier module, comprises multiple separate amplifirer, for multiple loud speakers of raising one's voice in module described in promoting respectively;
Audio signal distribution module, for distributing the multiple amplifirers in described audio signal to described power amplifier module, thus drives amplifirer to promote the loud speaker sounding of corresponding sound channel;
Central processing unit, for controlling described audio signal distribution module according to the original acoustic field signal in described sound source signal;
Described audio decoder module also comprises:
Volume control unit, for regulating the volume of described audio signal;
Tone regulon, for regulating the tone of described audio signal;
Described module of raising one's voice comprise be arranged at above user on put array of raising one's voice, be arranged at the array of raising one's voice of user's surrounding;
Array distribution that the array of raising one's voice of the described user's of being arranged at surrounding is square or ring-type is raised one's voice, described square array of raising one's voice comprises preposition array of raising one's voice, rearmounted array of raising one's voice, a left side are put raise one's voice array and the right side and put array of raising one's voice.
2. stereo audio system according to claim 1, is characterized in that, described power amplifier module comprises efficient class-D amplifier.
3. stereo audio system according to claim 1, is characterized in that, described audio signal distribution module also comprises audio signal pre-amplifier unit, for carrying out pre-amplification to described audio signal.
4. according to the stereo audio system that claim 1 is stated, it is characterized in that, put array of raising one's voice on described for circular.
5. stereo audio system according to claim 1, is characterized in that, putting raise one's voice display and ring-type and raising one's voice array for circular on described.
6. an audio-visual equipment, is characterized in that, comprising:
Stereo audio system as claimed in any of claims 1 to 5, the program source module in described stereo audio system also looks source signal for extracting in described program source, and looks source signal described in exporting;
Video decoding module, looks source signal described in decoding, and outputting video signal;
Video display, for according to described vision signal display video.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103269477A (en) * | 2013-03-28 | 2013-08-28 | 王勇 | Air voice sound field control method and system for implementing same |
| CN106060726A (en) * | 2016-06-07 | 2016-10-26 | 微鲸科技有限公司 | Panoramic loudspeaking system and panoramic loudspeaking method |
| CN107580275A (en) * | 2016-07-04 | 2018-01-12 | 深圳富泰宏精密工业有限公司 | Volume control circuit and method |
| EP3373595A1 (en) * | 2017-03-07 | 2018-09-12 | Thomson Licensing | Sound rendering with home cinema system and television |
| CN107371108A (en) * | 2017-08-28 | 2017-11-21 | 四川湖山电器有限责任公司 | A kind of multi-channel speaker system and equipment |
| CN112261188A (en) * | 2020-10-23 | 2021-01-22 | 维沃移动通信有限公司 | Electronic device, sound field adjusting method, and sound field adjusting apparatus |
| CN116095568A (en) * | 2022-09-08 | 2023-05-09 | 瑞声科技（南京）有限公司 | Audio playing method, vehicle-mounted sound system and storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1980053A (en) * | 2005-12-01 | 2007-06-13 | 蒋云 | Wireless network audio frequency power amplifier and relative method |
| CN101461256A (en) * | 2006-05-31 | 2009-06-17 | 松下电器产业株式会社 | Speaker system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101790123A (en) * | 2009-12-31 | 2010-07-28 | 瑞声声学科技(深圳)有限公司 | Virtual surround sound system and implementation method thereof |
-
2010
- 2010-10-09 CN CN201010501150.2A patent/CN102447996B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1980053A (en) * | 2005-12-01 | 2007-06-13 | 蒋云 | Wireless network audio frequency power amplifier and relative method |
| CN101461256A (en) * | 2006-05-31 | 2009-06-17 | 松下电器产业株式会社 | Speaker system |
Non-Patent Citations (1)
| Title |
|---|
| 环绕声的N+1通路锥形扬声器阵列重发;谢菠荪;《电声技术》;19921231(第6期);第1页第2栏最后一段，第3页第1栏最后一段，图3，图4 * |
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