CN103747404A - Surround-sound power-amplifier system - Google Patents
Surround-sound power-amplifier system Download PDFInfo
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- CN103747404A CN103747404A CN201310714227.8A CN201310714227A CN103747404A CN 103747404 A CN103747404 A CN 103747404A CN 201310714227 A CN201310714227 A CN 201310714227A CN 103747404 A CN103747404 A CN 103747404A
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Abstract
The invention provides a surround-sound power-amplifier system which includes an audio-product reading unit, a Bluetooth communication unit, an access signal selection unit, an audio processing unit, a power amplifier unit, a radio-frequency identification operation unit, a first space synthesizer, a second space synthesizer, a first filtering unit and a second filtering unit. In the surround-sound power-amplifier system, virtual surround sound sources in the left, right, front and rear directions are generated through the space synchronizers and the filters so that a defect that stereophonic sounds are created traditionally through setting of sound positions is changed and sound transmission quality is improved. Moreover, the surround-sound power-amplifier system is also capable of wireless control through a handset and wireless play of audio files in the handset so that convenience is improved.
Description
Technical field
The present invention relates to message treatment facility technical field, be specifically related to a kind of vehicle-mounted surround sound power amplification system.
Background technology
At present, consumer is heated up to chasing gradually of automobile function variation, comfort level.One of visual plant that on-vehicle acoustic apparatus is enjoyed at in-car entertainment as people, the quality of its quality is the important consideration standard that current consumer purchases car.In prior art, on-vehicle acoustic apparatus is all furnished with four loud speakers, L channel sound source is delivered to front left or rear left speaker, and R channel source of sound is delivered to front right and rear right loud speaker, by loud speaker being placed in to four car door positions, builds stereosonic sensation.But for the hearer that listens who is not positioned at centre position, sound sounds can be partial to certain on one side, causes listen to uncomfortable sensation because sound is unbalanced.In addition, existing on-vehicle acoustic apparatus needs manual adjustments to control the size of volume and to switch song, when automobile gallops at all speed, considers safety, and driver cannot control stereo set, then arranges passenger and operates also very inconvenient.Moreover along with the development of mechanics of communication, the development of Bluetooth technology and utilization are more and more ripe and extensive.When driver and crew ride, while wanting to listen on the hand-held external equipment of driver and crew music with the vehicle-mounted power amplifier of automobile, need to audio-frequency information be transferred in vehicle-mounted power amplification system with data wire.But data wire not carries constantly, and data wire carry also cumbersome.
Summary of the invention
The object of the invention is to overcome weak point of the prior art, provide a kind of voice output quality high and can carry out controlled in wireless and vehicle-mounted convenience surround sound power amplification system that can radio play interior of mobile phone audio file by mobile phone.
The object of the invention is to be achieved through the following technical solutions:
Surround sound power amplification system, comprises sound goods reading unit, bluetooth communication unit, access signal selected cell, audio treatment unit, power amplifier unit, radio-frequency (RF) identification running unit, the first spatial synthesizer, second space synthesizer, the first filter unit and the second filter unit;
Described bluetooth communication unit, sound goods reading unit is connected with the input of access signal selected cell respectively, the input of audio treatment unit is connected with access signal selected cell, the output of audio treatment unit is connected with power amplifier unit, described bluetooth communication unit, access signal selected cell, power amplifier unit, radio-frequency (RF) identification running unit is all connected with central control unit, the output of described power amplifier unit respectively with the first spatial synthesizer, second space synthesizer connects, the output of the first spatial synthesizer is connected with the first filter unit, the output of second space synthesizer is connected with the second filter unit,
Described bluetooth communication unit receives external digital audio signal for connecting by bluetooth, described sound goods reading unit is for reading the audio file of laser disc and external connection storage apparatus, described radio-frequency (RF) identification running unit is connected with the mobile phone wireless coupling that is provided with rf control unit, and for receiving, mobile phone sends volume adjusting instruction and move instruction to central control unit regulates volume with order power amplifier unit;
Described the first spatial synthesizer receives L channel source of sound and the R channel source of sound of two sound channel sound source broadcasts of power amplifier unit output, and be generated as interim front left sound channel sound source and interim front right sound channel sound source, described second space synthesizer receives L channel source of sound and the R channel source of sound of two sound channel sound source broadcasts of power amplifier unit output, and is generated as interim rear left sound channel sound source and interim rear right sound channel sound source;
Described the first filter unit generates for the virtual ring of exporting interim front left sound channel sound source around front left sound channel sound source, interim front right sound channel sound source is generated for the virtual ring of exporting around front right sound channel sound source, described the second filter unit generates interim rear left sound channel sound source to supply the virtual ring of output around rear left sound channel sound source, and interim rear right sound channel sound source is generated and supplies the virtual ring of output around rear right sound channel sound source.
Concrete, described the first spatial synthesizer and second space synthesizer are mainly comprised of comb filter, nido all-pass filter, adder and multiplier.
The present invention has the following advantages and beneficial effect compared to existing technology:
The virtual ring that surround sound power amplification system provided by the invention generates left-right and front-back four direction by spatial synthesizer and filter, around source of sound, is built stereosonic deficiency to change tradition by sound equipment position is set, and has improved the quality of voice output; In addition, the present invention also can carry out controlled in wireless and can radio play interior of mobile phone audio file by mobile phone, has improved convenient degree.
Accompanying drawing explanation
Fig. 1 is the present embodiment surround sound power amplification system structured flowchart.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but the execution mode of the invention is not limited to this.
As shown in Figure 1, the invention provides a kind of surround sound power amplification system, comprise sound goods reading unit, bluetooth communication unit, access signal selected cell, audio treatment unit, power amplifier unit, radio-frequency (RF) identification running unit, the first spatial synthesizer, second space synthesizer, the first filter unit and the second filter unit.
Wherein:
Bluetooth communication unit, sound goods reading unit is connected with the input of access signal selected cell respectively, the input of audio treatment unit is connected with access signal selected cell, the output of audio treatment unit is connected with power amplifier unit, described bluetooth communication unit, access signal selected cell, power amplifier unit, radio-frequency (RF) identification running unit is all connected with central control unit, the output of described power amplifier unit respectively with the first spatial synthesizer, second space synthesizer connects, the output of the first spatial synthesizer is connected with the first filter unit, the output of second space synthesizer is connected with the second filter unit, bluetooth communication unit receives external digital audio signal for connecting by bluetooth, described sound goods reading unit is for reading the audio file of laser disc and external connection storage apparatus, described radio-frequency (RF) identification running unit is connected with the mobile phone wireless coupling that is provided with rf control unit, and for receiving, mobile phone sends volume adjusting instruction and move instruction to central control unit regulates volume with order power amplifier unit, the first spatial synthesizer receives L channel source of sound and the R channel source of sound of two sound channel sound source broadcasts of power amplifier unit output, and be generated as interim front left sound channel sound source and interim front right sound channel sound source, described second space synthesizer receives L channel source of sound and the R channel source of sound of two sound channel sound source broadcasts of power amplifier unit output, and is generated as interim rear left sound channel sound source and interim rear right sound channel sound source, the first filter unit generates for the virtual ring of exporting interim front left sound channel sound source around front left sound channel sound source, interim front right sound channel sound source is generated for the virtual ring of exporting around front right sound channel sound source, described the second filter unit generates interim rear left sound channel sound source to supply the virtual ring of output around rear left sound channel sound source, and interim rear right sound channel sound source is generated and supplies the virtual ring of output around rear right sound channel sound source.
In addition: the first spatial synthesizer and second space synthesizer are mainly comprised of comb filter, nido all-pass filter, adder and multiplier
The above embodiment has only expressed embodiments of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, under the premise of not departing from the present invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (2)
1. surround sound power amplification system, is characterized in that: comprise sound goods reading unit, bluetooth communication unit, access signal selected cell, audio treatment unit, power amplifier unit, radio-frequency (RF) identification running unit, the first spatial synthesizer, second space synthesizer, the first filter unit and the second filter unit;
Described bluetooth communication unit, sound goods reading unit is connected with the input of access signal selected cell respectively, the input of audio treatment unit is connected with access signal selected cell, the output of audio treatment unit is connected with power amplifier unit, described bluetooth communication unit, access signal selected cell, power amplifier unit, radio-frequency (RF) identification running unit is all connected with central control unit, the output of described power amplifier unit respectively with the first spatial synthesizer, second space synthesizer connects, the output of the first spatial synthesizer is connected with the first filter unit, the output of second space synthesizer is connected with the second filter unit,
Described bluetooth communication unit receives external digital audio signal for connecting by bluetooth, described sound goods reading unit is for reading the audio file of laser disc and external connection storage apparatus, described radio-frequency (RF) identification running unit is connected with the mobile phone wireless coupling that is provided with rf control unit, and for receiving, mobile phone sends volume adjusting instruction and move instruction to central control unit regulates volume with order power amplifier unit;
Described the first spatial synthesizer receives L channel source of sound and the R channel source of sound of two sound channel sound source broadcasts of power amplifier unit output, and be generated as interim front left sound channel sound source and interim front right sound channel sound source, described second space synthesizer receives L channel source of sound and the R channel source of sound of two sound channel sound source broadcasts of power amplifier unit output, and is generated as interim rear left sound channel sound source and interim rear right sound channel sound source;
Described the first filter unit generates for the virtual ring of exporting interim front left sound channel sound source around front left sound channel sound source, interim front right sound channel sound source is generated for the virtual ring of exporting around front right sound channel sound source, described the second filter unit generates interim rear left sound channel sound source to supply the virtual ring of output around rear left sound channel sound source, and interim rear right sound channel sound source is generated and supplies the virtual ring of output around rear right sound channel sound source.
2. surround sound power amplification system according to claim 1, is characterized in that: described the first spatial synthesizer and second space synthesizer are mainly comprised of comb filter, nido all-pass filter, adder and multiplier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310714227.8A CN103747404A (en) | 2013-12-19 | 2013-12-19 | Surround-sound power-amplifier system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310714227.8A CN103747404A (en) | 2013-12-19 | 2013-12-19 | Surround-sound power-amplifier system |
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| CN103747404A true CN103747404A (en) | 2014-04-23 |
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| CN201310714227.8A Pending CN103747404A (en) | 2013-12-19 | 2013-12-19 | Surround-sound power-amplifier system |
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Citations (6)
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|---|---|---|---|---|
| CN2814611Y (en) * | 2005-06-17 | 2006-09-06 | 陈敏锋 | Vehicular video-audio extending device and vehicular video-audio system using the same device |
| JP2007286490A (en) * | 2006-04-19 | 2007-11-01 | Toyota Motor Corp | Sound output apparatus for vehicle |
| CN101494819A (en) * | 2008-01-23 | 2009-07-29 | 凌阳科技股份有限公司 | Automobile virtual embosom sound system |
| CN102970425A (en) * | 2012-11-15 | 2013-03-13 | 广东好帮手电子科技股份有限公司 | System and method for remotely controlling vehicle-mounted host computer through smart phone |
| CN202816134U (en) * | 2012-10-10 | 2013-03-20 | 西安北斗星数码信息股份有限公司 | System for controlling sound device by mobile phone |
| CN203251297U (en) * | 2013-05-15 | 2013-10-23 | 深圳市圣美歌科技有限公司 | Vehicle-mounted power amplification system |
-
2013
- 2013-12-19 CN CN201310714227.8A patent/CN103747404A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2814611Y (en) * | 2005-06-17 | 2006-09-06 | 陈敏锋 | Vehicular video-audio extending device and vehicular video-audio system using the same device |
| JP2007286490A (en) * | 2006-04-19 | 2007-11-01 | Toyota Motor Corp | Sound output apparatus for vehicle |
| CN101494819A (en) * | 2008-01-23 | 2009-07-29 | 凌阳科技股份有限公司 | Automobile virtual embosom sound system |
| CN202816134U (en) * | 2012-10-10 | 2013-03-20 | 西安北斗星数码信息股份有限公司 | System for controlling sound device by mobile phone |
| CN102970425A (en) * | 2012-11-15 | 2013-03-13 | 广东好帮手电子科技股份有限公司 | System and method for remotely controlling vehicle-mounted host computer through smart phone |
| CN203251297U (en) * | 2013-05-15 | 2013-10-23 | 深圳市圣美歌科技有限公司 | Vehicle-mounted power amplification system |
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Application publication date: 20140423 |
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