CN105225678A - A kind of audio frequency and video switching control - Google Patents

A kind of audio frequency and video switching control Download PDF

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Publication number
CN105225678A
CN105225678A CN201410274851.5A CN201410274851A CN105225678A CN 105225678 A CN105225678 A CN 105225678A CN 201410274851 A CN201410274851 A CN 201410274851A CN 105225678 A CN105225678 A CN 105225678A
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CN
China
Prior art keywords
video
switch circuit
audio
audio frequency
switching control
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CN201410274851.5A
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Chinese (zh)
Inventor
屠永波
陈广
鄢洪辉
蒋海秋
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Ningbo Soundking Electronic Co Ltd
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Ningbo Soundking Electronic Co Ltd
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Priority to CN201410274851.5A priority Critical patent/CN105225678A/en
Publication of CN105225678A publication Critical patent/CN105225678A/en
Pending legal-status Critical Current

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Abstract

The invention provides a kind of audio frequency and video switching control, belong to audio frequency and video control technology field.This audio frequency and video switching control comprises frequency switch circuit, video switch circuit, the digital audio and video signals processing element coupled with described frequency switch circuit, and the main control unit coupled with described frequency switch circuit, video switch circuit and digital audio and video signals processing element respectively; The described frequency switch circuit of the enable control of described main control unit and video switch circuit are switchably operated in karaoke mode or video play mode.The centralized control that this audio frequency and video switching control can export the audio frequency and video of requesting song module, voice input module and video playback module, switch and control conveniently, manipulation is simple, contributes to very much function and the application scenario of expanding amusement equipment.

Description

A kind of audio frequency and video switching control
Technical field
The invention belongs to audio frequency and video control technology field, particularly relate to a kind of audio frequency and video switching control be switchably operated under karaoke mode or video play mode.
Background technology
At present, many public situation among a small circle carrying out having a meeting, sing amusement, dancing party, film be when playing, and all adopt separately independently entertainment systems to realize, and these systems is all adopt the mode of temporarily building to realize; Such as, need during meeting to adopt power amplifier and microphone etc., need when singing amusement to adopt song-order machine, power amplifying device, microphone etc., need when film is play to adopt DVD and projector etc.Establishment and the overlap joint of this entertainment systems are relative loaded down with trivial details processes, wiring is numerous, and need debugging, layman cannot operate at all, and be difficult to realize multifunction, like this, limit the function of public situation party, such as, entertainment systems for singing the party of amusement can not realize video display and play, for before the entertainment systems of having a meeting meeting in session, can not realize amusement function in meeting or after the meeting, the entertainment systems play for video display can not be used for realizing the functions such as Karaoke, small-sized interim dancing party.Therefore, independently entertainment systems can not be suitable for the multifunctional application demand of similar public situation completely separately, is unsuitable for the culture life requirement enriching the masses, poor user experience.
But, the above and these shortcomings mainly cause due to the independence of these entertainment systems, therefore, in the urgent need to a kind of audio frequency and video switching device shifter, multiple audio frequency, vision signal are carried out switching the centralized control exported to realize multiple entertainment systems.
Summary of the invention
The object of the invention is to, realize the centralized control that the audio frequency and video of module of at least requesting a song, voice input module and video playback module are exported, thus switch quickly and easily between karaoke mode and video play mode.
For realizing above object or other objects, the invention provides a kind of audio frequency and video switching control, it comprises:
Frequency switch circuit;
Video switch circuit;
The digital audio and video signals processing element coupled with described frequency switch circuit; And
The main control unit coupled with described frequency switch circuit, video switch circuit and digital audio and video signals processing element respectively;
Wherein, described frequency switch circuit connects outside requesting song module, video playback module, voice input module to receive from described requesting song module and the first sound signal of voice input module and the second sound signal from described video playback module, and described video switch circuit connects outside requesting song module and video playback module to receive from described requesting song module first vision signal and the second vision signal from described video playback module;
The described frequency switch circuit of the enable control of described main control unit and video switch circuit are switchably operated in karaoke mode or video play mode; Under described karaoke mode, described frequency switch circuit is selected to export described first sound signal to described digital audio and video signals processing element, and described video switch circuit is selected to export described first vision signal; Under described video play mode, described frequency switch circuit is selected to export described second sound signal to described digital audio and video signals processing element, and described video switch circuit is selected to export described second vision signal.
Alternatively, described digital audio and video signals processing element can be digital signal processor.
According to the audio frequency and video switching control of one embodiment of the invention, wherein, A/D converter is provided with between described digital audio and video signals processing element and described frequency switch circuit.
Preferably, audio frequency and video switching control comprises audio output and video output terminals, is provided with D/A between described audio output and described digital audio and video signals processing element.
Particularly, described audio output couples outside power amplifier output module.
The audio frequency and video switching control of an embodiment is gone back according to the present invention, wherein, described audio frequency and video switching control is provided with Audio conversion key and video switch key, under when pressing described Audio conversion key, described audio frequency and video switching control is operated in karaoke mode, under being operated in video play mode by audio frequency and video switching control described during described video switch key.
Alternatively, described Audio conversion key and video switch key are arranged to a key, thus the key realized between karaoke mode and video play mode switches.
Preferably.Described Audio conversion key and video switch key correspondence are arranged on as on the telepilot of the actuation means of audio frequency and video switching control and/or touch-screen.
Particularly, described touch-screen and described main control unit is wired couples, described telepilot and described main control unit is wireless couples.
Particularly, described requesting song module is song-order machine, and described video playback module is DVD disc player, and described voice input module is radio microphone device.
Technique effect of the present invention is, this audio frequency and video switching control can easily control inputs audio or video selection export, be conducive to the multiple multimedia equipment of concentrated controling management, such as, to the centralized control that the audio frequency and video of requesting song module, voice input module and video playback module export, thus can switch quickly and easily between karaoke mode and video play mode easily.This audio frequency and video switching control contributes to function and the application scenario of expanding amusement equipment very much, and easy to use, and manipulation is simple, is very beneficial for the Consumer's Experience improving amusement equipment.
Accompanying drawing explanation
From following detailed description by reference to the accompanying drawings, will make above and other object of the present invention and advantage more complete clear, wherein, same or analogous key element adopts identical label to represent.
Fig. 1 is the modular structure schematic diagram of the audio frequency and video switching control according to one embodiment of the invention.
Fig. 2 is the structural representation of the audio frequency and video control system of the embodiment that audio frequency and video switching control embodiment illustrated in fig. 1 is applied.
Fig. 3 is the annexation schematic diagram between other modules of the switching control of audio frequency and video shown in Fig. 1 and its audio frequency and video control system.
Embodiment
Introduce below be of the present invention multiple may some in embodiment, aim to provide basic understanding of the present invention, be not intended to confirm key of the present invention or conclusive key element or limit claimed scope.Easy understand, according to technical scheme of the present invention, do not changing under connotation of the present invention, one of ordinary skill in the art can propose other implementations that can mutually replace.Therefore, following embodiment and accompanying drawing are only the exemplary illustrations to technical scheme of the present invention, and should not be considered as of the present invention all or the restriction be considered as technical solution of the present invention or restriction.
In the present invention, Karaoke refers to pre-record on the storage medium in broadcasting, not to have the musical background of leading singer's voice synchronously to play the lyrics having beat to point out simultaneously, on display fluorescent screen, and participant can see that the lyrics hold microphone singing in this mode; Video playback refers to as user provides continuous print video playback to watch for user.Although it is to be appreciated that also there is video playback in karaoke mode, karaoke mode emphasis user sings experience, and video play mode focuses on the viewing experience of user, and therefore video play mode more focuses on the readability of video playback usually.Karaoke mode and video play mode can expand its definition category along with the expansion of their function.
Figure 1 shows that the modular structure schematic diagram of the audio frequency and video switching control according to one embodiment of the invention; Figure 2 shows that the structural representation of the audio frequency and video control system of the embodiment that audio frequency and video switching control embodiment illustrated in fig. 1 is applied; Annexation schematic diagram between other modules that Figure 3 shows that the switching control of audio frequency and video shown in Fig. 1 and its audio frequency and video control system.Audio frequency and video switching control below in conjunction with the embodiment of the present invention schematically illustrates its structure, principle, function when being applied to audio frequency and video control system.
First as shown in Figure 2, in the audio frequency and video control system 10 of this embodiment, include display 10, requesting song module 12, video playback control module 13, audio frequency and video switching control 14 as shown in Figure 1, voice input module 15, power amplifier output module 16, be preferably also provided with terminal box 17 and drawer box 18.Wherein, display 10, requesting song module 12, video playback control module 13, audio frequency and video switching control 14, voice input module 15, power amplifier output module 16, terminal box 17 and drawer box 18 are collectively arranged in rack 19, like this, the overall integrated setting of audio frequency and video control system 10, very convenient overall carrying between each occasion.
The bottom of rack 19 is provided with some feets 193, is used for fixing supports this audio frequency and video control system 10 when audio frequency and video control system 10 job applications.Preferably, roller (not shown in figure 1) is also provided with in the bottom of rack 19, carry to facilitate the entirety of audio frequency and video control system 10, when audio frequency and video control system 10 job applications, roller is retracted and is fixed on the bottom of rack 19, when entirety is carried, feet 193 is by unsettled and this audio frequency and video control system 10 of roller supporting.
Display 11 is arranged on the upper end of rack 19, and in this embodiment, upper cover 191 upwardly-openable of rack 19 also can be fixed on a certain open angle fixed support by contractile support bar 192.Preferably, display 11 by its support bar (not shown) collapsible be loaded in rack 19, thus, when not using, audio frequency and video control system 10 all parts or module lock can be put in rack 19 conveniently by upper cover 191, in use, as shown in Figure 1, display 11 upwards can be opened necessarily to facilitate visual angle, and the angle of the upper surface of its relative rack 19 can regulate setting.
The shape of rack 19 can be rectangular shape, but, need understanding to be, the shape of rack 19, material and size can according to specific requirement respective design, they are not restrictive.The parts be separated with rack 19 that drawer box 18 can be used for loading audio frequency and video control system 10, such as, microphone, telepilot, connecting line etc., thus convenient carrying easy to use.
In this embodiment, display 11 is preferably touch-screen, therefore, it not only can be used as the output block of audio frequency and video control system 10, can also be used as input block, on the interface of touch-screen, user can conveniently realize switching the operations such as control, requesting song, video playback.The keyboard (as shown in Figure 1 147) of audio frequency and video switching control 14 can be realized by the virtual key on touch-screen, preferably, touch-screen is at least provided with Audio conversion key and video switch key, they are used for controlling audio frequency and video switching control 14, to make audio frequency and video control system 10 be operated in karaoke mode or video play mode (such as video display broadcasting), its concrete function and realize principle and will introduce thereafter.
In this embodiment, requesting song module 12 can for the device being mainly used in providing the song-order machine of Kara OK function etc. similar, and requesting song module 12 is built-in with memory module, and it is at least for storing song related content.Alternatively, this memory module can be arranged on to plug in requesting song module 12, like this, if need to upgrade the content stored in memory module, this memory module can be extracted, be accessed other computers outside, from managing the content of its memory module and/or upgrading, further, preferably, memory module operationally carries out content update by the network of access.The concrete storage media types of memory module, memory capacity and/or storage song content etc. are not restrictive.
The input media of requesting song module 12 can be realized by the virtual key of touch-screen in this embodiment, thus when audio frequency and video control system 10 is operated in karaoke mode, can control it conveniently by the touch-screen of display 10, such as carry out requesting a song, cutting the operations such as song, Consumer's Experience is good, directly perceived, operability is good.Preferably, requesting song module 12 is configured with global function function of infrared remote control, when audio frequency and video control system 10 is operated in karaoke mode, also can realize to the control operation of requesting song module 12, such as, carrying out requesting a song, cutting the operations such as song by the telepilot of audio frequency and video control system 10.In other embodiments, requesting song module 12 can also couple with other intelligent hand-held terminal radio communications, such as IPOD, IPAD and smart mobile phone etc., thus similar intelligent hand-held terminal can be used to carry out control operation to requesting song module 12 with expanding.
In this embodiment, video playback module 13 can be the video disc playing device of similar DVD, Apparatus for video CD, it can be, but not limited to support BD, DVD, VCD, CD video disc, such as, video playback module 13 can be high definition blue light DVD player, its band multichannel Doby (Duby) 7.1 sound channel surround decoder system, the full HD image quality of the highest support 1080P, supports blue light BD former dish file broadcasting etc.Preferably, video playback module 13 is with Internet video playing function and external hard disk playing function; For realizing external hard disk playing function, for the USB interface of external external hard disk on this video disc playing device, thus other video contents entrained by user do not stored in convenient broadcasting video playback module 13; For realizing Internet video playing function, this video disc playing device can be provided with the network interface for access network, and being built-in with memory module, such as hard disk, and this memory module operationally carries out video content renewal by the network of access; This memory module also can be arranged on to plug in video playback module 13, like this, if need to upgrade the content stored in memory module, this memory module can be extracted, accessed other outside computers, from managing the content of its memory module and/or upgrading.The storage media types of the memory module of broadcasting video playback module 13, memory capacity, storage content are not restrictive.
The input media of video playback module 13 can pass through the virtual key realization of touch-screen (display 11) in this embodiment, thus when audio frequency and video control system 10 is operated in video play mode, can control it conveniently by the touch-screen of display 10, such as, carry out the operation such as F.F., played in full screen.Preferably, video playback module 13 is configured with global function function of infrared remote control, when audio frequency and video control system 10 is operated in video play mode, also can realize the control operation to video playback module 13 by the telepilot of audio frequency and video control system 10, such as, carry out F.F., volume adjusting operation.
In this embodiment, voice input module 15 can be, but not limited to as W202R-TH wireless microphone system, and it is configured with one or more microphone, such as, also can be wire microphone system.
In this embodiment, power amplifier output module 16 can be, but not limited to as AC1800 movie theatre power amplifier, AC1800 aims at the high-performance six sound channels movie system sound intensifier of small-sized fixing movie theatre design, there is wider voltage usable range, such as, voltage usable range is 160V-240V, can be suitable for the situation of remote area power supplies instability completely.Further, there is perfect defencive function, such as, there is start delayed startup, overheat protector, direct current protecting, short-circuit protection etc., thus guarantee that product is in rugged environment and not damaged under maloperation condition, improves its reliability.The cooling system of AC1800 movie theatre power amplifier adopts the low noise huge discharge blower fan of two-stage speed change, under ensureing that complete machine is operated in lower temperature conditions.
In this embodiment, audio frequency and video switching control 14 can work in karaoke mode or video play mode, thus be switchably operated in karaoke mode or video play mode for controlling audio frequency and video control system 10, as shown in Figure 1, audio frequency and video switching control 14 comprises frequency switch circuit 141 and video switch circuit 142, frequency switch circuit 141 at least receives from voice input module 15(such as microphone), requesting song module 12(such as song-order machine) sound signal 1-1 and from video playback module 13(such as DVD) sound signal 1-2, video switch circuit 142 at least receives from requesting song module 12(such as song-order machine) vision signal 2-1 and from video playback module 13(such as DVD) vision signal 2-2, it is to be appreciated that when audio frequency and video control system 10 is integrated with other audio or video output devices, frequency switch circuit 141 and video switch circuit 142 can also receive sound signal, the vision signal of other types with expanding respectively.
Continue as shown in Figure 1, the audio frequency and video switching control 14 of the embodiment of the present invention also comprises A/D converter 144, digital signal processor (DigitalSignalProcesser, DSP) 145 and D/A converter 146, the sound signal that frequency switch circuit 141 exports is generally simulating signal, digital signal is converted at A/D converter 144, and then digital audio and video signals process is carried out in DSP145, such as can be, but not limited to carry out to postpone, frequency division, reverberation, the process such as compression digital signal, prevent the sound signal distortion exported; The digital audio and video signals that DSP145 exports is converted to simulated audio signal in D/A converter 146, and then export power amplifier output module 16 to, or can also audio interface be exported to, thus be exported to other stereo sets and play, such as, the sound equipment of outside as shown in Figure 3.External speakers can according to the incompatible concrete option and installment of applied field.
Continue as shown in Figure 1, audio frequency and video switching control 14 is also provided with main control-processing unit (MCU) 143, MCU143 for controlling the work of frequency switch circuit 141, video switch circuit 142 and DSP145, MCU143 mono-aspect can receive the instruction of the input equipment such as telepilot, keyboard, the instruction that can also receive the display 11 of touch-screen on the other hand inputs and controls the display of display 11, controls the work of frequency switch circuit 141, video switch circuit 142 and DSP145 in MCU after carrying out instruction process, such as, user press Audio conversion key (can on telepilot or on display 11) time, the enable frequency switch circuit 141 of MCU, video switch circuit 142 and DSP145, frequency switch circuit 141 is made selectively to export from the sound signal 1-1 of voice input module 15 with requesting song module 12, and the sound signal 1-2 of mute video playing module 13 exports, simultaneously, if the vision signal 2-1(making video switch circuit 142 selectively export from requesting song module 12 has), and the vision signal 2-2 shielded from video playback module 13 exports, DSP145 is also carried out digital audio processing process by MCU143 is enable, user press video switch key (can on telepilot or on this display 11) time, the enable frequency switch circuit 141 of MCU, video switch circuit 142 and DSP145, the sound signal 1-1 of sound signal 1-2 module 12 and shielding is requested a song that frequency switch circuit 141 is selectively exported from video playback module 13 exports, meanwhile, video switch circuit 142 selectively exports the vision signal 2-2 from video playback module 13 and shields the vision signal 2-1 output (if there is) from requesting song module 12.
Video switch circuit 142 selects the vision signal (2-1 or 2-2) exported to show on display 11, also the video output interface of audio frequency and video control system 10 can be exported to, pass through external display device, such as, projector 92 etc. as shown in Figure 3, realizes the video playback capability of theater type.
It is to be appreciated that Audio conversion key and video switch key can be two independently keys on telepilot and/or touch-screen, in other embodiments, also can be arranged to a key, thus the key realized between karaoke mode and video play mode switches.
In this embodiment, as shown in Figures 2 and 3, for reducing audio frequency and video control system 10 wiring work in use, concentrated setting terminal box 17 is gone back in rack 19, as shown in Figure 3,17a is depicted as the interface in the front of terminal box 17, and 17b is depicted as the interface at the back side of terminal box 17; The interface at the back side is used for carrying out wiring with other internal modules (such as video playback module 13, voice input module 15, power amplifier output module 16, audio frequency and video switching control 14) of audio frequency and video control system 10 and is connected, this is usually integrated in rack 19, and be fixedly connected with, the interface in front is used for being connected with the external component of audio frequency and video control system 10 and for accessing power supply, network signal etc., thus without the need to numerous and diverse wiring, also facilitate with the wiring of external unit, be easy to the multi-functional entertainment systems of fast construction.
The front of terminal box 17 is provided with the video output interface of audio frequency and video control system 10, audio output interface, network interface and power interface, wherein, power interface external power supply, can be powered for display module 11, the unification of requesting song module 12, video playback module 13, voice input module 15, power amplifier output module 16 and audio frequency and video switching control 14 by the power module wherein arranged, and on arranging on the front of terminal box 17, can power switch be set, such as DZ47-60-C10-2P air switch, thus improve safe reliability.Video output interface can external projector 92 etc.The audio frequency that terminal box 17 receives from audio frequency and video switching control 14 exports and video frequency output, and sound signal can export outside stereo set to by audio output interface, and vision signal can export outside display device to by video output interface.
In another embodiment, the front of terminal box 17 is also provided with lamp control interface, karaoke module 12 can export acoustic control lamp light signal by accompanying audio signal, and this acoustic control lamp light signal is selected by audio frequency and video switching control 14 the lamp control interface exporting terminal box 17 under karaoke mode.Connected by connecting line and outside acoustic control lamp photosystem, acoustic control lamp photosystem can be controlled, thus the perfection enjoyment of sound, light, audiovisual can be issued at karaoke mode.
Therefore, based on the embodiment of the present invention audio frequency and video switching control can easily control inputs audio or video selection export, be conducive to the multiple multimedia equipment of concentrated controling management, such as, song-order machine, DVD disc player etc., contribute to function and the application scenario of expanding amusement equipment, and easy to use, manipulation is simple, is very beneficial for the Consumer's Experience improving amusement equipment.
The audio frequency and video control system 10 that audio frequency and video switching control based on the embodiment of the present invention builds formation is example, not only can realize the video playback capability of Kara OK function, theater type, and easy switching, and manipulation is simple; Further, wiring is simple, very easy to use, carries also very convenient, is easy to realize flowing movie theatre, flowing recreation center function.This audio frequency and video control system 10 can be, but not limited to be applicable to following applications: (1) network on-line meeting and training (particularly in outdoor occasion); (2) the online digital movie of network and relevant entertainment are play; (3) karaoke of outdoor or indoor scenarios and dancing party; (4) wedding celebration, dinner party etc. are assembled a crowd occasion; (5) the canteen culture publicity place of NGO etc.; (6) the political culture recreation place of Basic Government tissue etc.
To understand, herein, " on ", D score, " front ", the directional terminology such as " reverse side " be that the orientation controlling system relative to audio frequency and video in accompanying drawing defines, these directional terminology are relative concepts, they for relative to description and clarification, it can control to be the change in orientation that place according to audio frequency and video and correspondingly change.
To understand, when it is said parts be ' attach ' to another parts time, it can be directly connected to another parts maybe can exist intermediate member.
Above example mainly describes audio frequency and video switching control of the present invention.Although be only described some of them embodiments of the present invention, those of ordinary skill in the art should understand, and the present invention can implement with other forms many not departing from its purport and scope.Therefore, the example shown and embodiment are regarded as illustrative and not restrictive, when do not depart from as appended each claim define the present invention spirit and scope, the present invention may contain various amendments and replacement.

Claims (10)

1. an audio frequency and video switching control, is characterized in that, comprising:
Frequency switch circuit;
Video switch circuit;
The digital audio and video signals processing element coupled with described frequency switch circuit; And
The main control unit coupled with described frequency switch circuit, video switch circuit and digital audio and video signals processing element respectively;
Wherein, described frequency switch circuit connects outside requesting song module, video playback module, voice input module to receive from described requesting song module and the first sound signal of voice input module and the second sound signal from described video playback module, and described video switch circuit connects outside requesting song module and video playback module to receive from described requesting song module first vision signal and the second vision signal from described video playback module;
The described frequency switch circuit of the enable control of described main control unit and video switch circuit are switchably operated in karaoke mode or video play mode; Under described karaoke mode, described frequency switch circuit is selected to export described first sound signal to described digital audio and video signals processing element, and described video switch circuit is selected to export described first vision signal; Under described video play mode, described frequency switch circuit is selected to export described second sound signal to described digital audio and video signals processing element, and described video switch circuit is selected to export described second vision signal.
2. audio frequency and video switching control as claimed in claim 1, it is characterized in that, described digital audio and video signals processing element is digital signal processor.
3. audio frequency and video switching control as claimed in claim 1, is characterized in that, be provided with A/D converter between described digital audio and video signals processing element and described frequency switch circuit.
4. audio frequency and video switching control as claimed in claim 3, it is characterized in that, audio frequency and video switching control comprises audio output and video output terminals, is provided with D/A between described audio output and described digital audio and video signals processing element.
5. audio frequency and video switching control as claimed in claim 4, is characterized in that, described audio output couples outside power amplifier output module.
6. audio frequency and video switching control as claimed in claim 1, it is characterized in that, described audio frequency and video switching control is provided with Audio conversion key and video switch key, under when pressing described Audio conversion key, described audio frequency and video switching control is operated in karaoke mode, under being operated in video play mode by audio frequency and video switching control described during described video switch key.
7. audio frequency and video switching control as claimed in claim 6, it is characterized in that, described Audio conversion key and video switch key are arranged to a key, thus the key realized between karaoke mode and video play mode switches.
8. audio frequency and video switching control as claimed in claims 6 or 7, is characterized in that, described Audio conversion key and video switch key correspondence are arranged on as on the telepilot of the actuation means of audio frequency and video switching control and/or touch-screen.
9. audio frequency and video switching control as claimed in claim 8, is characterized in that, described touch-screen and described main control unit is wired couples, described telepilot and described main control unit is wireless couples.
10. audio frequency and video switching control as claimed in claim 1, it is characterized in that, described requesting song module is song-order machine, and described video playback module is DVD disc player, and described voice input module is radio microphone device.
CN201410274851.5A 2014-06-19 2014-06-19 A kind of audio frequency and video switching control Pending CN105225678A (en)

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CN109801521A (en) * 2019-03-06 2019-05-24 武汉几古几古科技有限公司 A kind of the picture point reading play system and method for trained child's study
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CN107277587A (en) * 2017-07-25 2017-10-20 王振明 A kind of intelligence open air KTV systems
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