CN104112955A - Signal line with sound effect processing function - Google Patents
Signal line with sound effect processing function Download PDFInfo
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- CN104112955A CN104112955A CN201410336567.6A CN201410336567A CN104112955A CN 104112955 A CN104112955 A CN 104112955A CN 201410336567 A CN201410336567 A CN 201410336567A CN 104112955 A CN104112955 A CN 104112955A
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Abstract
The invention discloses an active signal line with a sound effect processing function. The active signal line is characterized by being mainly formed by an input terminal, a signal input line, a sound effect processing module, a signal output line, an output terminal, a power line and a power plug, wherein the sound effect processing module is mainly formed by a power circuit, a digital signal processing (DSP) unit, a microprogrammed control unit (MCU), a mode switching unit and a mode indicating unit. The mode switching unit transmits switched sound effect mode information to the MCU, and the DSP unit receives audio information transmitted by the input terminal and performs sound effect processing on the audio information according to the sound effect mode information transmitted by the MCU. Due to the structural form, the cost is controlled well while the tone quality is improved; and particularly for an audio system already purchased in a user's home, the tone quality of the original audio system can be greatly improved only by purchasing a connecting line.
Description
Technical field
The present invention relates to a kind of sound system field, specifically a kind of audio signal wire.
Background technology
Current audio signal wire is on the market all normal transmission of audio signal, do not possess the whole sound system tonequality of improvement, for example strengthen bass effect, or outstanding voice part, or sound field is widened, when elimination sound is loud, problem of distorsion etc., wanted the effect that reaches above in the past, must again buy equipment, providing now a kind of has the active signal line of audio processing capacity just very simply to solve this problem.
Television set has in the market been tending towards the panel TV of ultrathin.Television set producer generally all pursue thin, light and high definition up and down foot the time, also obtained extraordinary achievement, as smart as a new pin, but but seldom make an effort, or be often uncared-for part attractive in appearance in not only thin but also narrow limit aspect sound effect.Worse and worse, especially the loss of bass part is more and more obvious for the sound effect that the ultrathin of panel TV causes TV.TV is audio-visual devices, and vision and hearing enjoying are indispensable.In the situation that not wanting to change existing equipment, thereby the sound effect of wanting to promote television set just can be used active signal line with audio processing capacity to be connected to top box of digital machine, can solve and above be not allly.
Also be applied to disc player, high definition player, various signal source simultaneously and produce being connected of equipment and power amplifier or Soundbar, also can be applied to television set, disc player, high definition player simultaneously and be connected with Soundbar's, the tonequality audio of lifting whole system.Between two equipment, need the system of carrying out audio signal transmission with connecting line to use in a word.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, provide a kind of and can improve audio quality, the band audio processing capacity holding wire that easy to use, cost is low.
For achieving the above object, the technical solution adopted in the present invention is:
The active signal line that has audio processing capacity, it is characterized in that: it is mainly by input terminal, signal input line, audio processing module, output line, lead-out terminal, power line and attaching plug form, wherein, described audio processing module is mainly by power circuit, DSP digital signal processing unit, MCU control unit, mode switch element and pattern indicating member form, described mode switch element sends switched audio pattern information to MCU control unit, MCU control unit control model indicating member is indicated or is shown which kind of audio pattern current be, DSP digital signal processing unit receives the audio-frequency information that input terminal transmits, and transfer the analog signal of audio-frequency information to digital signal, the audio pattern information sending according to MCU control unit, digitized audio-frequency information is carried out to audio processing, and by output line, send the audio-frequency information after processing to lead-out terminal, attaching plug is electrically connected to the voltage input end of power circuit by power line, and the voltage output end of power circuit provides power supply to respectively DSP digital signal processing unit and MCU control unit.
Described signal input line and output line, adopt stereo audio signal line, coaxial line, optical fiber cable or HDMI high definition line.
Described input terminal and lead-out terminal adopt CANNON terminal, optic fibre connector or the USB terminal of RCA terminal, stereo 3.5 terminals, coaxial terminal, balance input.
Described attaching plug is USB plug, and the USB interface of described USB plug and signal source output equipment is pegged graft, or the USB interface grafting of the audio reception device after USB plug and audio processing, or USB plug and power supply adaptor grafting.
The passage number of described audio processing module processing audio is 2～8.
Described audio processing module also comprises remote control reception unit, and described remote control reception unit is electrically connected to MCU control unit, and remote control reception unit is for receiving audio pattern handover information and the volume control information that remote controller is sent.
Described signal source input equipment is Set Top Box, disc player, mobile phone or television set.
Audio reception device after described audio is processed is television set, earphone, multi-media sound system or power amplifier.
Described DSP digital signal processing unit adopts ADAU1761 cake core, MCU control unit adopts NUC122 cake core, described mode switch element adopts audio mode switching key S1, pattern indicating member is six LED light, described audio mode switching key S1 is connected with the angle 14 of drawing of NUC122 cake core, six LED light are respectively by resistance R 15, resistance R 16, resistance R 17, resistance R 18, resistance R 19, resistance R 20 is connected with the angle 15～20 of drawing of NUC122 cake core, the drawing angle 2 and draw angle 3 and be connected with the 32He Yin angle, angle 31 of drawing of ADAU1761 cake core with resistance R 22 by resistance R 21 respectively of NUC122 cake core, the output of described power circuit is respectively the voltage that DSP digital signal processing unit and MCU control unit provide 3V.
Described USB plug, also doubles as the joint that the program upgrade of MCU control unit is used, and two lines in USB plug are connected with the 11He Yin angle, angle 12 of drawing of NUC122 cake core with resistance R 3 by resistance R 2.
Beneficial effect of the present invention: owing to adopting above-mentioned version, when improving tonequality, cost is well controlled again.The present invention has disclosed two audio systems and by the connecting line of processing with audio, has improved greatly the tonequality of existing equipment.For the audio system of having bought of user's family, only need to buy a connecting line just can improve the tonequality of former sound system greatly.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Fig. 1 is structural representation of the present invention;
Fig. 2 is a part of electrical schematic diagram of audio processing module of the present invention;
Fig. 3 is another part electrical schematic diagram of audio processing module of the present invention.
In figure: 1, input terminal; 2, signal input line; 3, audio processing module; 4, output line; 5, lead-out terminal; 6, power line; 7, attaching plug; 8, power circuit; 9, DSP digital signal processing unit; 10, MCU control unit; 11, mode switch element; 12, pattern indicating member; 13, signal source output equipment; 14, the audio reception device after audio processing.
Embodiment
As Fig. 1, 2, shown in 3, the active signal line that has audio processing capacity, it is mainly by input terminal 1, signal input line 2, audio processing module 3, output line 4, lead-out terminal 5, power line 6 and attaching plug 7 form, wherein, described audio processing module 3 is mainly by power circuit 8, DSP digital signal processing unit 9, MCU control unit 10, mode switch element 11 and pattern indicating member 12 form, described mode switch element 11 sends switched audio pattern information to MCU control unit 10, 10 control model indicating member 12 indications of MCU control unit are current is for which kind of audio pattern, DSP digital signal processing unit 9 receives the audio-frequency information that input terminal 1 transmits, and transfer the analog signal of audio-frequency information to digital signal, the audio pattern information sending according to MCU control unit 10, digitized audio-frequency information is carried out to audio processing, and by output line 4, send the audio-frequency information after processing to lead-out terminal 5, attaching plug 7 is electrically connected to the voltage input end of power circuit 8 by power line 6, and the voltage output end of power circuit 8 provides power supply to respectively DSP digital signal processing unit 9 and MCU control unit 10.
The passage number of audio processing module 3 processing audio is 2, and described signal input line and output line adopt stereo audio signal line.Input terminal 1 and lead-out terminal 5 adopt RCA terminal.Attaching plug 7 is USB plug, and the USB interface of described USB plug and signal source output equipment 13 is pegged graft.Described signal source input equipment is Set Top Box.Audio reception device 14 after described audio is processed is panel TV.
In the present embodiment, because current general TV programme and television set is all dual track, so just select this straightaway example to illustrate, wherein have the main core technology of the active signal line of audio processing capacity on audio processing modules, below in conjunction with the concrete circuit of implementing by the operation principle of introducing audio processing modules of emphasis.The concrete schematic diagram of patent of the present invention, solves the audio processing capacity of two passages, but never only limits to this, can be applicable to more multichannel processing.
Fig. 2, Fig. 3 are the concrete electrical schematic diagram of patent of the present invention, mainly by RCA1 audio input port, DSP digital signal processing unit U2, MCU control unit U3, audio mode switching key S1, three dual-colored LED lamps, power circuit, RCA2 audio output port.Described DSP digital signal processing unit U2 adopts ADAU1761 cake core, MCU control unit U3 adopts NUC122 cake core, described mode switch element adopts audio mode switching key S1, pattern indicating member adopts three dual-colored LED lamps, have six LED light altogether, be used to refer to nine kinds of states, namely have nine kinds of audio patterns to select for user.Described audio mode switching key S1 is connected with the angle 14 of drawing of NUC122 cake core, six LED light are connected with the angle 15～20 of drawing of NUC122 cake core by resistance R 15, resistance R 16, resistance R 17, resistance R 18, resistance R 19, resistance R 20 respectively, the drawing angle 2 and draw angle 3 and be connected with the 32He Yin angle, angle 31 of drawing of ADAU1761 cake core with resistance R 22 by resistance R 21 respectively of NUC122 cake core, the output of described power circuit is respectively the voltage that DSP digital signal processing unit and MCU control unit provide 3V.
In the embodiment of the present invention, can by resistance R 2, be connected with the 11He Yin angle, angle 12 of drawing of NUC122 cake core with resistance R 3 by two lines of USB1 interface, now, the interface of using in order to the program upgrade of MCU control unit.Be used for the upgrading program of MCU, data that like this can online updating audio processing modules, reach easily and carry out the customization of audio frequency effect to client.It is exactly the input port of power supply supply that USB1 interface also has a very important effect, power supply can derive from signal source input, as the USB mouth of Set Top Box or blue light disc player, also can be from the output of signal, as the USB mouth of television set or projector, the power supply that the present embodiment is derives from the Set Top Box of signal source input.
The MCU control unit U3 backward DSP digital signal processing unit U2 of normal work (ADAU1761) sends the audio data that set in advance, sending different data and can produce different audios, is to come preset multiple audio pattern to select for user according to consumer's hobby.The instruction of MCU receiving mode selection key, carries out model selection, and the while is control model indicator light also, indicates current mode of operation.Audio mode switching key S1 does mode switch element, its effect is exactly to the different requirements of the effect of sound according to different user, as some user likes bass more, some user likes voice more clear, some user likes high frequency more beautiful, also there is this situation when seeing a film, to wish scene shock a bit, at this moment need low loudness of a sound a bit, and seeing news, during the class of languages programs such as TV play, just need voice dialogue more clear, in order to meet numerous clients, this audio processing module the inside can meet different user groups by built-in 9 kinds of effect modes, different program source, different application scenarios.
Signal passes through RCA1 audio input port through R9, R7, and R8, R11 voltage matches network and C23 and C24 coupling capacitance are input to U2(ADAU1761 cake core); U2 is as the core processing unit of the embodiment of the present invention, contents processing comprises analog input signal is transferred to digital signal (ADC processing unit), in this audio processing modules, by a set of algorithm through digital signal processing unit, can strengthen processing to the bass of television set output, the high pitch of television set output is relaxed to processing, can repair, beautify according to the acoustical flaw of panel TV set loudspeaker, polishing, realizes panel TV set output sound is improved and improved.The DSP part of the audio processing modules that this cuff audio is processed, comprise the gain-adjusted to audio signal input, AGC automatic gain is controlled, high pass filter or low pass filter are set arbitrarily, the compression of input signal, EQ regulates, the gain-adjusted of output signal, dynamic compression, noise gate control etc. also comprise other conventional audio frequency processing capacities simultaneously.
RCA2 is as embodiment of the present invention sound intermediate frequency output port, and this output port is by output line and lead-out terminal and panel TV.19 pin of U2 and 20 pin are by coupling capacitance C22, and C25 is connected to RCA2 output port.
The above; it is only the specific embodiment of the present invention; but protection scope of the present invention is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the present invention; variation or the replacement that can expect without creative work, within all should being encompassed in protection scope of the present invention.Therefore protection scope of the present invention should be as the criterion with the protection range that claims were limited.
Claims (10)
1. an active signal line that has audio processing capacity, it is characterized in that: it is mainly by input terminal, signal input line, audio processing module, output line, lead-out terminal, power line and attaching plug form, wherein, described audio processing module is mainly by power circuit, DSP digital signal processing unit, MCU control unit, mode switch element and pattern indicating member form, described mode switch element sends switched audio pattern information to MCU control unit, MCU control unit control model indicating member is indicated or is shown which kind of audio pattern current be, DSP digital signal processing unit receives the audio-frequency information that input terminal transmits, and transfer the analog signal of audio-frequency information to digital signal, the audio pattern information sending according to MCU control unit, digitized audio-frequency information is carried out to audio processing, and by output line, send the audio-frequency information after processing to lead-out terminal, attaching plug is electrically connected to the voltage input end of power circuit by power line, and the voltage output end of power circuit provides power supply to respectively DSP digital signal processing unit and MCU control unit.
2. the active signal line that has audio processing capacity according to claim 1, is characterized in that: described signal input line and output line, adopt stereo audio signal line, coaxial line, optical fiber cable or HDMI high definition line.
3. the active signal line that has audio processing capacity according to claim 1, is characterized in that: described input terminal and lead-out terminal adopt CANNON terminal, optic fibre connector or the USB terminal of RCA terminal, stereo 3.5 terminals, coaxial terminal, balance input.
4. the active signal line that has audio processing capacity according to claim 1, it is characterized in that: described attaching plug is USB plug, the USB interface of described USB plug and signal source output equipment is pegged graft, or the USB interface of the audio reception device after USB plug and audio are processed is pegged graft, or USB plug and power supply adaptor grafting.
5. the active signal line that has audio processing capacity according to claim 1, is characterized in that: the passage number of described audio processing module processing audio is 2～8.
6. the active signal line that has audio processing capacity according to claim 1, it is characterized in that: described audio processing module also comprises remote control reception unit, described remote control reception unit is electrically connected to MCU control unit, and remote control reception unit is for receiving audio pattern handover information and the volume control information that remote controller is sent.
7. the active signal line that has audio processing capacity according to claim 4, is characterized in that: described signal source input equipment is Set Top Box, disc player, mobile phone or television set.
8. the active signal line that has audio processing capacity according to claim 4, is characterized in that: the audio reception device after described audio is processed is television set, earphone, multi-media sound system or power amplifier.
9. the active signal line that has audio processing capacity according to claim 4, it is characterized in that: described DSP digital signal processing unit adopts ADAU1761 cake core, MCU control unit adopts NUC122 cake core, described mode switch element adopts audio mode switching key S1, pattern indicating member is six LED light, described audio mode switching key S1 is connected with the angle 14 of drawing of NUC122 cake core, six LED light are respectively by resistance R 15, resistance R 16, resistance R 17, resistance R 18, resistance R 19, resistance R 20 is connected with the angle 15～20 of drawing of NUC122 cake core, the drawing angle 2 and draw angle 3 and be connected with the 32He Yin angle, angle 31 of drawing of ADAU1761 cake core with resistance R 22 by resistance R 21 respectively of NUC122 cake core, the output of described power circuit is respectively the voltage that DSP digital signal processing unit and MCU control unit provide 3V.
10. a kind of active signal line that has audio processing capacity according to claim 9, it is characterized in that: described USB plug, also double as the joint that the program upgrade of MCU control unit is used, two lines in USB plug are connected with the 11He Yin angle, angle 12 of drawing of NUC122 cake core with resistance R 3 by resistance R 2.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410336567.6A CN104112955A (en) | 2014-07-16 | 2014-07-16 | Signal line with sound effect processing function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410336567.6A CN104112955A (en) | 2014-07-16 | 2014-07-16 | Signal line with sound effect processing function |
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| CN104112955A true CN104112955A (en) | 2014-10-22 |
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| CN201410336567.6A Pending CN104112955A (en) | 2014-07-16 | 2014-07-16 | Signal line with sound effect processing function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016197340A1 (en) * | 2015-06-10 | 2016-12-15 | Global Silicon Limited | An audio signal processing device |
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| CN201167187Y (en) * | 2007-12-19 | 2008-12-17 | 王光华 | Switching plug capable of filtering numeral voice |
| CN103714847A (en) * | 2013-12-31 | 2014-04-09 | 广州市花都区中山大学国光电子与通信研究院 | DSP (digital signal processing)-based multi-channel digital audio processor |
| CN104638487A (en) * | 2013-11-14 | 2015-05-20 | 广州艾飞网络科技有限公司 | Active signal line with sound effect processing function |
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2014
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001350468A (en) * | 2000-06-06 | 2001-12-21 | Roland Corp | Sound field effect adding device and acoustic system |
| CN200997585Y (en) * | 2006-10-11 | 2007-12-26 | 黄严柏 | Bel-canto audio-frequency line of loundspeaker |
| CN201167187Y (en) * | 2007-12-19 | 2008-12-17 | 王光华 | Switching plug capable of filtering numeral voice |
| CN104638487A (en) * | 2013-11-14 | 2015-05-20 | 广州艾飞网络科技有限公司 | Active signal line with sound effect processing function |
| CN103714847A (en) * | 2013-12-31 | 2014-04-09 | 广州市花都区中山大学国光电子与通信研究院 | DSP (digital signal processing)-based multi-channel digital audio processor |
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| WO2016197340A1 (en) * | 2015-06-10 | 2016-12-15 | Global Silicon Limited | An audio signal processing device |
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