CN102355622A - Synchronous external-playing system and application device thereof - Google Patents
Synchronous external-playing system and application device thereof Download PDFInfo
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- CN102355622A CN102355622A CN2011101482525A CN201110148252A CN102355622A CN 102355622 A CN102355622 A CN 102355622A CN 2011101482525 A CN2011101482525 A CN 2011101482525A CN 201110148252 A CN201110148252 A CN 201110148252A CN 102355622 A CN102355622 A CN 102355622A
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Abstract
The invention discloses a synchronous external-playing system which comprises a local audio module and at least one external-playing audio module, and is characterized in that the local audio module comprises a pre-processing module, a volume regulating module and an emission module which are sequentially cascaded; the pre-processing module is provided with an input end connected with an audio signal; the volume regulating module is connected with a local loudspeaker by virtue of at least one local output end; the external-playing audio module comprises a receiving module, an external amplifier and an external loudspeaker which are sequentially cascaded; and the emission module carries out modulation and emission on volume signals acquired by the volume regulating module, and the receiving module processes received signals, so that a positive correlation is kept between the volumes of the external loudspeaker and the local loudspeaker. In the scheme provided by the invention, the volume regulating module is arranged at the backward stage of the pre-processing module and the forward stage of the emission module, and has regulated volume information, so that the information can be transmitted to the external-playing audio module so as to realize the synchronous regulation of volumes, thereby not only meeting the convenience of wireless transmission, but also achieving the properties of conciseness and reliability existing in the traditional regulation mode.
Description
Technical field
The present invention relates to a kind of apparatus for processing audio and corresponding apparatus, specifically is the equipment of a kind of outer place system synchronously and application thereof.
Background technology
Along with technological progress, the volume of multimedia equipment is more and more littler or thin, and its inner space is inevitable also more and more littler, and the loud speaker, the sound box system that cause itself holding receive very big restriction.Good acoustics must have the loud speaker of certain size and/or audio amplifier to realize, especially for handling the bass signal part, the volume that the sound basin of its loud speaker, audio amplifier horn etc. are consumed is difficult to deduction and exemption.This has just produced some contradictions.Usually, such contradiction bass effect of often being embodied in equipment itself is had a greatly reduced quality.
For tackling above problem, it is place system outside the multimedia equipment outer setting that one type of scheme is arranged, particularly based on the outer place system of the bass of ANTENN AUDIO transmission.This type scheme mainly through at equipment body emitter being set, is wirelessly transmitted to outer place system with audio signal, after amplifying, promotes outer place system speaker operation, and the medium and high pitch loudspeaker of cooperating equipment body is to reach the purpose of improving final tonequality.This type scheme has obtained certain effect, and the loud speaker equal-volume of outer place system is not retrained by apparatus body after all, and design more fully can be arranged.
But this type scheme also has its shortcoming; Because introduced outer system of putting; If need to regulate the on-the-spot volume of whole device; Then except equipment itself; The volume of outer place system also will be regulated simultaneously; It is loaded down with trivial details and unreliable so to seem, because the collocation of the volume of alt and bass is not arbitrarily just can reach good effect.
A kind of demand is so just arranged, promptly can have the convenience of outer place system usually, the volume that can succinctly regulate whole device again reliably.
Summary of the invention
To above demand, the present invention proposes the equipment of a kind of outer place system synchronously and application thereof, and concrete technical scheme is following:
A kind of outer place system synchronously comprises a local audio module and at least one outer playback frequency module, and said local audio module comprises a pre-process module, a volume adjusting module and a transmitter module of cascade in turn; Said pre-process module has an input termination audio signal; Said volume adjusting module also connects corresponding local loud speaker through at least one local output;
Said outer playback frequency module comprises a receiver module, an outer amplifier and an outer loud speaker of cascade in turn;
Wherein, the signal volume that said transmitter module obtains said volume adjusting module is modulated and is launched, and said receiver module is handled to the received signal, can make the volume of said outer loud speaker and local loud speaker keep positive correlation.
In fact volume adjusting module has the function of power amplification.And the pre-process module can be general preposition pre-process module, also can have the preposition pre-process module of decoding function.
Preferred person as technical scheme of the present invention, can do following improvement:
In one preferred embodiment, said transmitter module will all carry out wireless transmission behind the coding from the signal of said volume adjusting module.
In one preferred embodiment, said transmitter module will carry out wireless transmission after will only encoding to bass part from the signal of said volume adjusting module.
In one preferred embodiment, said transmitter module will carry out wireless transmission after will only partly encoding to surround channel from the signal of said volume adjusting module.
In one preferred embodiment, said volume adjusting module is exported the alt part of said audio signal to said local loud speaker; Said outer amplifier is exported the bass part of said audio signal to said outer loud speaker.
In one preferred embodiment, said volume adjusting module comprises shakes the control receiving system; Other has one to realize volume change with the said said control receiving system that shakes of remote controller control that shakes control receiving system coupling.
In one preferred embodiment, said outer amplifier also has an outer volume adjusting module, and this outer volume adjusting module can independently be controlled the volume of said outer loud speaker.
As the equipment of this system applies, following technical scheme can be arranged:
A kind of multimedia equipment with synchronous outer place system, it is characterized in that: it comprises:
One main body, this main body has the audio interface of an exportable audio signal;
One local audio module comprises a pre-process module, a volume adjusting module and a transmitter module of cascade in turn; Said pre-process module has an input termination audio signal; Said volume adjusting module also connects corresponding local loud speaker through at least one local output; And
One outer playback frequency module comprises a receiver module, an outer amplifier and an outer loud speaker of cascade in turn;
Wherein, the signal volume that said transmitter module obtains said volume adjusting module is modulated and is launched, and said receiver module is handled to the received signal, makes the volume of said outer loud speaker and local loud speaker keep positive correlation.
As the preferred person of this equipment and technology scheme, can aspect as follows, have improvement:
In one preferred embodiment, said transmitter module and receiver module are the Bluetooth transmission mode.
In one preferred embodiment, said local loud speaker comprises and is used for each one of left and right sound channels; Said outer loud speaker is a woofer.
In one preferred embodiment, said outer playback frequency module comprises two, and except comprising said woofer person, another comprises each one of the outer loud speaker that is used for rearmounted left and right sound channels.
As with by similar another kind of of technical scheme, can be following scheme:
A kind of outer place system synchronously comprises a local audio module and at least one outer playback frequency module, and said local audio module comprises a pre-process module, a volume adjusting module and a transmitter module of cascade in turn; Said pre-process module has an input termination audio signal; Said volume adjusting module also connects corresponding local loud speaker through at least one local output;
Said outer playback frequency module comprises a receiver module, an outer amplifier and an outer loud speaker of cascade in turn;
Wherein, The audio signal of the band information, volume that said transmitter module obtains said volume adjusting module is handled and a wired output interface is arranged; Said receiver module can be communicated with this limited output interface; Handle to the received signal, can make the volume of said outer loud speaker and local loud speaker keep positive correlation.
As other one type of scheme again, can be following:
A kind of outer place system synchronously comprises a local audio module and at least one outer playback frequency module, and said local audio module comprises a pre-process module, a volume adjusting module, a transmitter module and a wireless module of cascade in turn; Said pre-process module has an input termination audio signal; Said volume adjusting module also connects corresponding local loud speaker through at least one local output;
Said outer playback frequency module comprises a receiver module, an outer amplifier and an outer loud speaker of cascade in turn;
Wherein, the audio signal of said transmitter module band information, volume that said volume adjusting module is obtained is handled and is connected said wireless module through a wired output interface and carries out wireless transmission; Said receiver module receives the wireless signal of said wireless module generation and handles, and can make the volume of said outer loud speaker and local loud speaker keep positive correlation.
The beneficial effect that the present invention brings is:
1. volume adjusting module is positioned at level, transmitter module prime after the pre-process module in the local audio module; The information, volume that can have adjusted; Thereby can make the outer amplification module of reception realize the volume adjusted in concert this information wireless emission; Both satisfy the convenience of wireless transmission, had the succinct and reliable of traditional approach adjusting again.
2. transmitter module can be from the signal that volume the is regulated emission of all encoding, and emission again after also can only filtering such as bass, rearmounted sound channel etc. to a certain partial information is applicable to multiple wireless outer occasion of putting, and has sizable flexibility.
3. outer volume adjusting module can make outer playback frequency module have the control of shaking function, improves to make outer playback frequency module service efficiency.
4. transmitter module adopts wired mode to transmit, and can be used as wired output interface, can either send by external extra wireless launcher, can use wired mode to connect again.Diverse in function.
Description of drawings
Embodiment is described further the present invention below in conjunction with accompanying drawing:
Fig. 1 is the embodiment of the invention one sketch map;
Fig. 2 is the embodiment of the invention two sketch mapes;
Fig. 3 is the embodiment of the invention three sketch mapes;
Fig. 4 is the embodiment of the invention four sketch mapes;
Fig. 5 is the embodiment of the invention five sketch mapes;
Fig. 6 is the embodiment of the invention six sketch mapes.
Embodiment
Embodiment one:
As shown in Figure 1, the embodiment of the invention one sketch map.Local audio module 100 comprises pre-process module 10, volume adjusting module 20 and the transmitter module 30 of cascade in turn; Pre-process module 10 has an input 11, the audio signal of plugging into; Volume adjusting module 20 also has a local output 21, has connected a local loud speaker 22.Outer playback frequency module 200 comprises a receiver module 40 and an outer amplifier 50 of cascade; Outer amplifier 50 connects an outer loud speaker 51.
In the real work, audio signal gets into pre-process module 10 through input 11 and arrives volume adjusting module 20 again, is used to promote local loud speaker 51 (alt) and the coding wireless output in back simultaneously.Because volume adjusting module 20 has coding to the size of volume; So the wireless audio signal that obtains through transmitter module 30 does not singly include the whole tone frequency information of spectrum again and again; Information, volume is also arranged; This makes receiver module 40 can handle this information, volume; To such an extent as to when regulating the volume of local loud speaker 22; The volume of outer loud speaker 51 can positive correlationization, and do not need independent operation.Be set to synchronous variation in this example.
Embodiment two:
Like Fig. 2, the embodiment of the invention two sketch mapes.Compare with embodiment one, local audio module 100 in this example, outer playback frequency module 200 all has similar structure.Different is, in local audio module 100, also has one and shakes control receiving system 62, and this shakes remote controller 61 controls that control receiving system 62 is subjected to a coupling, and changes the especially settings of volume adjusting module part of local audio module 100.Remote controller 61 is communicated by letter as signal vehicle with infrared ray with shaking control receiving system 62, and the equipment that is positioned at remote controller 61 at a distance can be adjusted through the remote-receiver 62 final volumes of entire mechanism that realize synchronously.
Embodiment three:
As shown in Figure 3, the embodiment of the invention three sketch mapes.Compare with embodiment two, its local audio module class seemingly and also comprises an outer volume adjusting module 52 in the playback frequency module 200 outside, and this outer volume adjusting module 52 can be done two kinds of following settings:
A kind of is the volume of the outer loud speaker 51 of independent control, independently superposes mutually with the regulation mechanism that originally was limited by local audio module 100.After the volume of adjusting this locality when local audio module 100 and putting outward, the playback frequency module can also be regulated the volume ratio of outer loud speaker 51 on this basis through outer volume adjusting module 52 outside.
Another kind has been expanded the function of outer volume adjusting module 52, promptly through changing the setting of outer volume module 52, makes outer playback frequency module 200 reverse control local audio modules 100, reaches this locality and changes synchronously with outer playback amount.This just makes outer playback frequency module 200 have the function of shaking control.
Embodiment four:
As shown in Figure 4, the embodiment of the invention four sketch mapes.In this example, local audio module 100 is arranged in a TV set device 1, the audio signal that input 11 inserts this TV set device 1.Volume adjusting module 20 connects loud speaker L channel 23 and R channel 22 separately through two local outputs.Outer playback frequency module 200 has two, and one of them comprises the rearmounted L channel 51a of receiver module 40a, outer amplifier 50a and outer loud speaker, rearmounted R channel 51b.Another comprises receiver module 40b, outer amplifier 50b and the mid-51c of outer loud speaker.In the real work; The emission of local audio module comprises the wireless signal of the frequent spectrum information of whole tone; Mode playback frequency module 200 receptions outside through broadcasting; Outer amplifier 50a and 50b by separately handle each channel information respectively; Outer loud speaker via diverse location amplifies; Realization around stereophonic effect, simultaneously when regulating the volume of TV set device 1, but the volume synchronous change of all surround sounds.
Embodiment five:
As shown in Figure 5, the embodiment of the invention five sketch mapes.Compare with embodiment one, the transmitter module 30 in this embodiment local audio module 100 is handled from the signal in the volume adjusting module to wired mode; Transmitter module has a wired output interface 31, through the receiver module 40 in the outer playback frequency module 200 of a cable 32 connections.That is, present embodiment adopts wired mode transmission signals fully.
Embodiment six:
As shown in Figure 6, the embodiment of the invention six sketch mapes.Compare with embodiment five, in this example, the transmitter module 30 of local audio module 100 connects a wireless module 33 through its wired output interface 31; And the receiver module 40 in the outer playback frequency module 200 still adopts wireless mode to receive the signal from wireless module 33 emissions.This scheme can be considered the band wireless extensions scheme with wired mode.Transmitter module 30 has the function of automatic identification, and when wired output interface 31 inserts wireless module 33, but the catv terminal of similar embodiment five constantly, and transmitter module 30 exportable voiceless sound amounts are regulated the signal of information; If what insert is wireless module 33, then activate the function that has the transmission of volume conditioning signal automatically.This is a design very easily, both can satisfy direct driving voice frequency terminal, can switch to the wireless mode of band synchronizing function again.
The above, only for preferred embodiment of the present invention, so can not limit the scope that the present invention implements according to this, i.e. the equivalence of doing according to claim of the present invention and description changes and modification, all should still belong in the scope that the present invention contains.
Claims (13)
1. a synchronous outer place system comprises a local audio module and at least one outer playback frequency module, it is characterized in that:
Said local audio module comprises a pre-process module, a volume adjusting module and a transmitter module of cascade in turn; Said pre-process module has an input termination audio signal; Said volume adjusting module also connects corresponding local loud speaker through at least one local output;
Said outer playback frequency module comprises a receiver module, an outer amplifier and an outer loud speaker of cascade in turn;
Wherein, the audio signal of the band information, volume that said transmitter module obtains said volume adjusting module is modulated and is launched, and said receiver module is handled to the received signal, can make the volume of said outer loud speaker and local loud speaker keep positive correlation.
2. a kind of outer place system synchronously according to claim 1 is characterized in that: said transmitter module will all carry out wireless transmission behind the coding from the signal of said volume adjusting module.
3. a kind of outer place system synchronously according to claim 1 is characterized in that: said transmitter module will carry out wireless transmission after will only encoding to bass part from the signal of said volume adjusting module.
4. a kind of outer place system synchronously according to claim 1 is characterized in that: said transmitter module will carry out wireless transmission after will only partly encoding to surround channel from the signal of said volume adjusting module.
5. according to claim 2 or 3 or 4 described a kind of outer place systems synchronously, it is characterized in that: said volume adjusting module is exported the alt part of said audio signal to said local loud speaker; Said outer amplifier is exported the bass part of said audio signal to said outer loud speaker.
6. a kind of outer place system synchronously according to claim 5, it is characterized in that: said volume adjusting module comprises shakes the control receiving system; Other has one to realize volume change with the said said control receiving system that shakes of remote controller control that shakes control receiving system coupling.
7. a kind of outer place system synchronously according to claim 6, it is characterized in that: said outer amplifier also has an outer volume adjusting module, and this outer volume adjusting module can independently be controlled the volume of said outer loud speaker.
8. be with the multimedia equipment of outer place system synchronously for one kind, it is characterized in that: it comprises:
One main body, this main body has the audio interface of an exportable audio signal;
One local audio module comprises a pre-process module, a volume adjusting module and a transmitter module of cascade in turn; Said pre-process module has an input termination audio signal; Said volume adjusting module also connects corresponding local loud speaker through at least one local output; And
One outer playback frequency module comprises a receiver module, an outer amplifier and an outer loud speaker of cascade in turn;
Wherein, the signal volume that said transmitter module obtains said volume adjusting module is modulated and is launched, and said receiver module is handled to the received signal, makes the volume of said outer loud speaker and local loud speaker keep positive correlation.
9. a kind of multimedia equipment with synchronous outer place system according to claim 8, it is characterized in that: said transmitter module and receiver module are the Bluetooth transmission mode.
10. a kind of multimedia equipment with synchronous outer place system according to claim 9 is characterized in that: said local loud speaker comprises and is used for each one of left and right sound channels; Said outer loud speaker is a woofer.
11. a kind of multimedia equipment according to claim 10 with synchronous outer place system; It is characterized in that: said outer playback frequency module comprises two; Except comprising said woofer person, another comprises each one of the outer loud speaker that is used for rearmounted left and right sound channels.
12. a synchronous outer place system comprises a local audio module and at least one outer playback frequency module, it is characterized in that:
Said local audio module comprises a pre-process module, a volume adjusting module and a transmitter module of cascade in turn; Said pre-process module has an input termination audio signal; Said volume adjusting module also connects corresponding local loud speaker through at least one local output;
Said outer playback frequency module comprises a receiver module, an outer amplifier and an outer loud speaker of cascade in turn;
Wherein, The audio signal of the band information, volume that said transmitter module obtains said volume adjusting module is handled and a wired output interface is arranged; Said receiver module can be communicated with this limited output interface; Handle to the received signal, can make the volume of said outer loud speaker and local loud speaker keep positive correlation.
13. a synchronous outer place system comprises a local audio module and at least one outer playback frequency module, it is characterized in that:
Said local audio module comprises a pre-process module, a volume adjusting module, a transmitter module and a wireless module of cascade in turn; Said pre-process module has an input termination audio signal; Said volume adjusting module also connects corresponding local loud speaker through at least one local output;
Said outer playback frequency module comprises a receiver module, an outer amplifier and an outer loud speaker of cascade in turn;
Wherein, the audio signal of said transmitter module band information, volume that said volume adjusting module is obtained is handled and is connected said wireless module through a wired output interface and carries out wireless transmission; Said receiver module receives the wireless signal of said wireless module generation and handles, and can make the volume of said outer loud speaker and local loud speaker keep positive correlation.
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| CN2011101482525A CN102355622A (en) | 2011-06-03 | 2011-06-03 | Synchronous external-playing system and application device thereof |
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| CN2011101482525A CN102355622A (en) | 2011-06-03 | 2011-06-03 | Synchronous external-playing system and application device thereof |
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Cited By (3)
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| WO2015149613A1 (en) * | 2014-04-04 | 2015-10-08 | Beijing Zhigu Rui Tuo Tech Co., Ltd | Volume control methods and devices, and multimedia playback control methods and devices |
| WO2016165067A1 (en) * | 2015-04-14 | 2016-10-20 | Motorola Solutions, Inc. | Method and apparatus for a volume of a device |
| CN112702549A (en) * | 2020-12-24 | 2021-04-23 | 海信视像科技股份有限公司 | Sound output method and display device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2015149613A1 (en) * | 2014-04-04 | 2015-10-08 | Beijing Zhigu Rui Tuo Tech Co., Ltd | Volume control methods and devices, and multimedia playback control methods and devices |
| US10312874B2 (en) | 2014-04-04 | 2019-06-04 | Beijing Zhigu Rui Tuo Tech Co., Ltd | Volume control methods and devices, and multimedia playback control methods and devices |
| WO2016165067A1 (en) * | 2015-04-14 | 2016-10-20 | Motorola Solutions, Inc. | Method and apparatus for a volume of a device |
| US10198242B2 (en) | 2015-04-14 | 2019-02-05 | Motorola Solutions, Inc. | Method and apparatus for a volume of a device |
| CN112702549A (en) * | 2020-12-24 | 2021-04-23 | 海信视像科技股份有限公司 | Sound output method and display device |
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Application publication date: 20120215 |