CN104602160A - Digital loudspeaker and connection method thereof - Google Patents
Digital loudspeaker and connection method thereof Download PDFInfo
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- CN104602160A CN104602160A CN201410689936.XA CN201410689936A CN104602160A CN 104602160 A CN104602160 A CN 104602160A CN 201410689936 A CN201410689936 A CN 201410689936A CN 104602160 A CN104602160 A CN 104602160A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
Abstract
The invention discloses a digital loudspeaker and a connection method thereof. The digital loudspeaker is provided with a reuse port capable of serving as audio output or input, and the reuse ports of two digital loudspeakers can be connected through an audio signal line to form a stereo combined loudspeaker, or the reuse ports of a plurality of digital loudspeakers can be connected to form a loudspeaker array playing the same audio signal. The connection method of the loudspeaker is simple, a plurality of people can conveniently share music, output power can be enlarged, the requirements of parties are commonly met, and a plurality of digital loudspeakers can be distributed in a meeting place to create a uniform sound field.
Description
Technical field
The present invention relates to a kind of digital sound box and attaching method thereof.
Background technology
The common audio amplifier of prior art amplifies broadcasting again after receiving by input audio interface the audio signal sended over from intelligent terminal, or adopt two common from audio amplifier and a main sound box, main sound box receives by its input audio interface the audio signal sended over from intelligent terminal, after forming left channel audio signal and right channel audio signal after treatment again by its output audio interface respectively left channel audio signal and right channel audio signal are exported to two common from audio amplifier audio signal played back formed stereo, these two common only has input audio interface from audio amplifier signal, this common main sound box has input audio interface and output audio interface two interfaces.The audio interface of this common audio amplifier all has one-way, namely can only as audio input interface or audio output interface, couples together must follow corresponding interface and be linked in sequence, and couples together inconvenience, and needs the audio amplifier number that connects many.
The digital sound box of prior art, although use more more convenient than the common audio amplifier of tradition, but its audio interface still has one-way, if realize multiple audio amplifier to play a shared audio signal simultaneously, it still needs to be corresponding in turn to by output audio interface and input audio interface to couple together, and this shared audio signal can only be exported by a specific audio amplifier, other audio amplifiers are shared and are play this audio signal, can not realize shared audio signal to be exported by any one audio amplifier, other audio amplifiers are shared and are play this audio signal.
Summary of the invention
The invention provides a kind of digital sound box and attaching method thereof, which overcome the deficiencies in the prior art described in background technology.
One of the present invention's technical scheme adopted solving its technical problem is:
A kind of digital sound box, there is a multiplexing port, this multiplexing port can control it as audio input port or audio output port by a control signal, described audio amplifier plays self audio signal or extraneous audio signals, this extraneous audio signals is the audio signal being inputed to this audio amplifier by this multiplexing port, and this self audio signal exports by this multiplexing port.
Among one embodiment: comprise digital audio module, power amplifier module, logic selector switch and the first analog switch, this digital audio module also can send control signal to control this multiplexing port as audio input port or audio output port with external equipment data cube computation;
When this multiplexing port is as audio output port, self audio signal sends to this logic selector switch to amplify through power amplifier module and plays by this digital audio module, and this self audio signal can also send to this first analog switch to export through multiplexing port by this digital audio module;
When this multiplexing port is as audio input port, this extraneous audio signals amplifies output by power amplifier module successively after the first analog switch and logic selector switch;
This digital audio module receives self audio signal of original audio signal as this audio amplifier by data cube computation from external equipment;
Among one embodiment: also comprise the second analog switch, when this multiplexing port is as audio output port, self audio signal sends to this second analog switch to be exported by this multiplexing port through the first analog switch by this digital audio module;
This second analog switch is left channel audio signal or right channel audio signal by self audio signal of this output that elects.
Among one embodiment: also comprise the 3rd analog switch, when this multiplexing port is as audio output port, self audio signal sends to the 3rd analog switch to be amplified by this power amplifier module after logic selector switch and plays by this digital audio module, and self audio signal sends to the 3rd analog switch to be exported by multiplexing port after the second analog switch, the first analog switch by this digital audio module;
3rd analog switch with the mixing of the left and right sound channels signal of this self audio signal that elects whether.
Among one embodiment: this power amplifier module can open/stop control signal by one and opens to control it or stop.
Among one embodiment: this logic selector switch adopts two-way four-way logic switch, and this first analog switch adopts High-Speed Double-Channel analog switch.
Among one embodiment: this second analog switch adopts High-Speed Double-Channel analog switch.
Among one embodiment: the 3rd analog switch adopts High-Speed Double-Channel analog switch.
Among one embodiment: be provided with light source module, this this lamp source module of digital audio model calling also can modulate the illumination effect of described light source according to this self audio signal or extraneous audio signals.
Among one embodiment: this self audio signal and extraneous audio signals all adopt differential mode to transmit.
Among one embodiment: be also provided with USB interface and/or audio interface, this USB interface and/or audio interface connect this digital audio module, and this digital sound box is by this USB interface and/or audio interface data cube computation external equipment.
The present invention solves two of the technical scheme adopted of its technical problem:
A kind of method of attachment of digital sound box, comprise the digital sound box that one of two schemes are described, coupled together between the multiplexing port of these two digital sound boxes by audio signal wire, the multiplexing port of one of them digital sound box is as audio output port, the multiplexing port of another digital sound box is automatically as audio input port, and the audio signal that these two digital sound boxes are play is respectively left channel audio signal and right channel audio signal, is formed as a pair stereo set audio amplifier.
The present invention solves three of the technical scheme adopted of its technical problem:
A kind of method of attachment of digital sound box, comprise the digital sound box that one of at least three schemes are described, coupled together between the multiplexing port of the plurality of digital sound box by audio signal wire, wherein the multiplexing port of any one digital sound box is as audio output port, the multiplexing port of all the other digital sound boxes is automatically as audio input port, and the plurality of digital sound box plays identical audio signal, is formed as speaker array.
The technical program is compared with background technology, and its tool has the following advantages:
1, a kind of digital sound box, it has the multiplexing port that can be used as audio frequency output or input, this digital sound box transfers multiplexing port to specific output port and input port automatically by the audio signal automatically detecting multiplexing port, therefore, only need be coupled together between the multiplexing port of two digital sound boxes by audio signal wire when having two digital sound boxes, a pair stereo set audio amplifier can be formed, when having at least three digital sound boxes, wherein the multiplexing port of any one digital sound box is as audio output port, the multiplexing port of all the other digital sound boxes is automatically as audio input port, by audio signal wire the multiplexing port of this plurality of digital sound box coupled together and form speaker array and play identical audio signal, wherein, this any one digital sound box can as output port, correspondingly all the other audio amplifiers will change input port into, namely the audio signal that any one audio amplifier is play can both obtain sharing and play on all the other audio amplifiers, its method of attachment is simple, achieve audio frequency and share the expansion exporting power output with audio frequency, many people are facilitated to share music and strengthen power output, be usually used in the needs of getting together, also multiple digital sound box can be distributed on meeting-place and create uniformly sound field.
2, this digital sound box is provided with light source module, and this this lamp source module of digital audio model calling also can modulate the illumination effect of described light source according to this self audio signal or extraneous audio signals.Not only making this audio amplifier simultaneously with the function controlling light source luminescent effect according to audio signal, also take full advantage of the interface resource of this digital audio module, without the need to separately establishing separately for the digital audio module of modulated light source illumination effect, thus reducing cost.
3, this power amplifier module can open/stop control signal to control its unlatching or to stop by one, when this digital sound box needs to suspend playing audio signal, can to this power amplifier module send stop control signal make its break-off reduce power consumption penalty, when this digital sound box is by Power supplies such as batteries, improve the cruising time of this digital sound box.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 depicts the circuit structure block diagram of a kind of digital sound box described in embodiment three.
Fig. 2 depicts digital audio module circuit diagram of the present invention.
Fig. 3 depicts the circuit diagram of logic selector switch of the present invention.
Fig. 4 depicts the circuit diagram of audio power amplifier circuit of the present invention.
Fig. 5 depicts the circuit diagram of the first analog switch of the present invention.
Fig. 6 depicts the circuit diagram of the second analog switch of the present invention.
Fig. 7 depicts the circuit diagram of the 3rd analog switch of the present invention.
Fig. 8 depicts the audio amplifier connection diagram with the stereo set audio amplifier that two digital sound boxes are formed of the present invention.
Fig. 9 depicts the audio amplifier connection diagram with the speaker array that at least three digital sound boxes are formed of the present invention.
Embodiment
Embodiment one: please refer to Fig. 2 to Fig. 6, Fig. 8:
A kind of digital sound box, there is a multiplexing port that can be used as audio frequency and export or input, audio amplifier can play self audio signal or extraneous audio signals, and this extraneous audio signals is the audio signal being inputed to this audio amplifier by this multiplexing port, and this self audio signal exports by this multiplexing port.
This digital sound box comprises digital audio module 1, logic selector switch 2, first analog switch 3, second analog switch 4 and power amplifier module 5.
This digital audio module 1 may be used for original audio signal that wireless receiving sends over from external equipment (mobile phone, panel computer, computer etc.) and self audio signal of this original audio signal as this audio amplifier is play or exported by multiplexing port 6; This logic selector switch 2 with elect extraneous audio signals or self audio signal as power amplifier module 5 input signal and can also with the L channel of this self audio signal that elects or the right-channel signals input signal as power amplifier module 5; This first analog switch 3 with this multiplexing port 6 that elects as input port or output port.In the present embodiment, this logic selector switch 2 adopts two-way four-way logic switch (chip model is NXP74HC4052PW), and this first analog switch 3, second analog switch 4 all adopts High-Speed Double-Channel analog switch (chip model is SGM4717).
What the part that the audio signal output end of this digital audio module 1 connects this logic selector switch 2 treated routing path link and this second analog switch 4 treats routing path link, the common port of this logic selector switch 2 connects the input of this power amplifier module 5, the common port of this second analog switch 4 connects one of this first analog switch 3 and treats routing path link, another of this first analog switch 3 treats that another part that routing path link connects this logic selector switch 2 treats routing path link, and the common port of this first analog switch 3 connects this multiplexing port 6;
This digital audio module 1 can send a control signal MUTE, path or extraneous audio signals broadcasting path is play by self audio signal on this logic selector switch 2 of state 0 or 1 gating of this control signal MUTE, meanwhile, also by the corresponding path of this this first analog switch 3 of control signal MUTE gating to switch this multiplexing port 6 as output port or input port; This audio amplifier is provided with track selecting button, L channel or the R channel broadcasting path that a track selecting signal L/R_SELE_1 (having state 0 or 1) carrys out self audio signal on this logic selector switch 2 of gating is triggered by the track selecting button on this audio amplifier of manual operation, meanwhile, also by the corresponding path of this second analog switch 4 of this track selecting signal L/R_SELE_1 gating so that this self audio signal is exported with R channel or left channel audio signal.
When this digital audio module 1 detects that this multiplexing port no audio signal inputs, this digital audio module sends control signal MUTE (supposing that state is 0), now, the corresponding path of this first analog switch 3 is strobed and makes multiplexing port 6 automatically be transferred to audio output port, and this logic selector switch 2 is gated self audio signal and plays path; (state 0 represents R channel to trigger track selecting signal L/R_SELE_1 by the track selecting button on operation casing, state 1 represents L channel), suppose to choose L channel, so the L channel of this logic selector switch 2 gating self audio signal plays path, and the R channel of this second analog switch 4 gating self audio signal exports (can be contrary with the sound channel of logic selector switch gating by the sound channel of the second analog switch gating according to circuit design).Now, the audio signal during work of this digital sound box flows to as follows: self audio signal (comprising left channel audio signal and right channel audio signal) is divided into two-way and sends by this digital audio module 1, riches all the way gives this logic selector switch 2 and after above control signal MUTE and track selecting signal L/R_SELE_1 gating, exports L channel self audio signal and amplify through power amplifier module 5 and play, namely self audio signal of this L channel is play at the machine audio amplifier, another road sends to this second analog switch 4 to export R channel self audio signal after above track selecting signal L/R_SELE_1 gating and is exported by multiplexing port 6 after the first analog switch 3.
When this digital audio module 1 detects that this multiplexing port 6 has audio signal to input, this digital audio module 1 sends control signal MUTE (supposing that state is 0), the broadcasting path of the extraneous audio signals of this logic selector switch 2 is strobed and the corresponding path of this first analog switch 3 is strobed and makes multiplexing port 6 automatically be transferred to audio input port, now, the audio signal during work of this digital sound box flows to as follows: this extraneous audio signals amplifies broadcasting by power amplifier module 5 successively after the first analog switch 3 and logic selector switch 2.
A method of attachment for digital sound box, is comprised the digital sound box 10 described in two the present embodiment, is coupled together by audio signal wire by between the multiplexing port of these two digital sound boxes, form a pair stereo combined speaker.Its operation principle is as follows: wherein any one audio amplifier is as main sound box, another audio amplifier is then automatically as from audio amplifier, suppose that the track selecting signal L/R_SELE_1 of main sound box selects L channel, the digital audio module 1 of this main sound box detects should to the input of this multiplexing port absence of audio, choose corresponding path automatically to transfer multiplexing port 6 to audio output port the first analog switch 3 by control signal MUTE, logic selector switch 2 is chosen into self audio signal plays path, this main sound box is by its digital audio module 1 wireless receiving original audio signal and export self audio signal (L channel self audio signal and R channel self audio signal), broadcasting is amplified by amplification module 5 after L channel self audio signal is selected via logic selector switch 2 in this self audio signal one tunnel, this another road of self audio signal exports to from audio amplifier multiplexing port from multiplexing port 6 through the first analog switch 3 after selecting R channel self audio signal via the second analog switch 4.Detect that its multiplexing port has audio signal from the digital audio module of audio amplifier, export control signal MUTE, and will choose as extraneous audio signals plays path from the logic selector switch in audio amplifier, namely R channel self audio signal now exported by the multiplexing port of this main sound box is the extraneous audio signals from audio amplifier, this extraneous audio signals amplifies through amplification module after the first analog switch and logic selector switch to be play, due to this main sound box with play a left side respectively from audio amplifier, the audio signal of R channel, thus one group of stereo set audio amplifier is constituted, this stereo set audio amplifier only needs two audio amplifiers, and only by a tone frequency channel wire, its multiplexing port need be coupled together, attended operation is quite convenient.
Embodiment two: please refer to Fig. 2 to Fig. 9:
On the basis of embodiment one, the digital sound box of the present embodiment also comprises the 3rd analog switch 7, whether the 3rd analog switch 7 mixes for selecting the left and right sound channels signal of this self audio signal, the path of the 3rd analog switch 7 selects signal from the button control signal on audio amplifier, and the 3rd analog switch 7 adopts High-Speed Double-Channel analog switch (chip model is SGM4717).What the audio signal output end of this digital audio module 1 connected the 3rd analog switch 7 treats routing path link, and what the part that the common port of the 3rd analog switch 7 connects this logic selector switch 2 respectively treated routing path link and this second analog switch 4 treats routing path link.
When this multiplexing port 6 is as audio output port, self audio signal sends to the 3rd analog switch 7 with by this left side by this digital audio module 1, the audio signal of R channel mixes, through this logic selector switch 2, (now no matter track selecting signal L/R_SELE_1 is for choosing left channel signals or right-channel signals output on mixed mixed signal one tunnel, this logic switching circuit 2 export audio signal be this left side, the mixed signal of the audio signal of R channel) after amplify broadcasting by this power amplifier module 5, another road mixed signal mixed is through the second analog switch 4, exported by multiplexing port 6 after first analog switch 3.
A method of attachment for digital sound box, comprises the digital sound box 20 described at least three the present embodiment, is coupled together by the multiplexing port of audio signal wire by the plurality of digital sound box, forms speaker array.One of them audio amplifier is main sound box, all the other audio amplifiers are from audio amplifier, the multiplexing port 6 of this main sound box is as output port, all the other multiplexing ports from audio amplifier are automatically as input port, its main sound box and from the audio frequency playing principles between audio amplifier with embodiment one, the audio signal that just the present embodiment is play is mixed audio signal, regardless of a left side, right channel audio signal, namely have nothing to do with track selecting signal L/R_SELE_1, main sound box plays identical audio signal with from audio amplifier, any one audio amplifier in this digital sound box linked together can as main sound box, namely as the output of audio signal, other digital sound boxes become automatically from audio amplifier, play the audio signal sent by this main sound box.This speaker array facilitates audio signal share or form many people videoconference.
Embodiment three: please refer to Fig. 1 to Fig. 5:
Certainly this digital sound box also can not establish the second analog switch and the 3rd analog switch, only include digital audio module 1, logic selector switch 2, first analog switch 3 and power amplifier module 5, the part that the audio signal output end of this digital audio module 1 connects this logic selector switch 2 respectively treats that one of routing path link and this first analog switch 3 treats routing path link, the common port of this logic selector switch 2 connects the input of this power amplifier module 5, another of this first analog switch 3 treats that another part that routing path link connects this logic selector switch 2 treats routing path link, the common port of this first analog switch 3 connects this multiplexing port 6,
When this multiplexing port is as audio output port, self audio signal sends to this logic selector switch 2 to amplify broadcasting through power amplifier module 5 by this digital audio module 1, and this self audio signal can also send to this first analog switch 3 to export through multiplexing port 6 by this digital audio module 1; When this multiplexing port 6 is as audio input port, this extraneous audio signals amplifies output by power amplifier module 5 successively after the first analog switch 3 and logic selector switch 2.In the present embodiment, can only fix and one of them of the L channel of this digital audio module 1 or right channel audio signal output is connected to one of this first analog switch 3 treats routing path link, but still can trigger track selecting signal L/R_SELE_1 by the track selecting button on this audio amplifier selects the left channel signals of logic selector switch 2 or right-channel signals path to come to form stereo set audio amplifier or speaker array with other audio amplifiers, the L channel output of digital audio module 1 that what if this was fixedly attached to the first analog switch 3 is, so this selection signal L/R_SELE_1 can be gated for R channel, make this digital sound box and another audio amplifier can form stereo set audio amplifier, also selection signal L/R_SELE_1 can be gated for L channel, this digital sound box and all the other several audio amplifiers is made to form speaker array.
The transmitting procedure of embodiment one, embodiment two and the audio signal described in embodiment three all can adopt differential mode to transmit, the anti-interference strengthening audio signal and the connection distance strengthened between each audio amplifier.
The digital sound box of one preferred embodiment can also be provided with light source module, this this lamp source module of digital audio model calling also can modulate the illumination effect of described light source according to this self audio signal or extraneous audio signals, make this audio amplifier simultaneously with the function controlling light source luminescent effect according to audio signal, take full advantage of the interface resource of digital audio module.
This power amplifier module can open/stop control signal by one and opens to control it or stop.This opens/stop control signal can come from digital audio module in digital sound box, when digital audio module receive by the external equipment such as mobile phone send one open/stop control signal (play/suspend) time, this digital module transfers to send to power amplifier module to open/stop control signal accordingly, when this audio amplifier is without the need to carrying out playing audio signal, power amplifier module work can be stopped, save digital sound box power consumption, when adopting the power supplys such as battery to power when this digital sound box, the cruising time of this digital sound box can be extended; This opens/stop control signal also can come from extraneous induced signal, by arranging an inductor in this audio amplifier, as infrared sensor, when this infrared sensor senses infrared signal (if any people time), this power amplifier module is opened automatically, when not sensing infrared signal, this power amplifier module is automatically closed and is quit work.
The digital sound box of one preferred embodiment is also provided with USB interface and audio interface, this USB interface and/or audio interface connect this digital audio module, this auxiliary audio frequency interface can be general earphone audio interface, this digital audio module not only can receive from beyond the original audio signal of external equipment from the wireless connections of setting up, and can also pass through the original audio signal of USB interface or auxiliary audio frequency port accepts external equipment.
Digital audio module in a kind of digital sound box of the present invention can be that Bluetooth audio frequency module or WIFI audio-frequency module etc. have reception, process and send the control module of audio signal function.
A kind of digital sound box of the present invention, circuit structure is simple, have audio frequency I/O multiplexing port, realize the connection between this digital sound box by this multiplexing port, its method of attachment is simple, the audio frequency that can realize played in stereo and multiple audio amplifier is play simultaneously, realize music sharing and strengthen sound output, be especially suitable for many people videoconference, many people merely lie prone party occasion, also can tens audio amplifiers be distributed on meeting-place, create uniform sound field.Such as, during many people videoconference, by audio signal wire, the plurality of digital sound box is connected into speaker array, attend a meeting member everyone can set up wireless connections by smart mobile phone with corresponding digital sound box, by the operation (such as operating broadcasting/stop key) of smart mobile phone by audio signal transmission to corresponding digital sound box, now this digital sound box becomes main sound box, other audio amplifiers are as the audio signal synchronously playing the reception and registration of this smart mobile phone from audio amplifier, in like manner, wherein any one digital sound box can receive audio signal from smart mobile phone as main sound box, pass to all the other audio amplifiers again to play, when whole videoconference, message is play by audio amplifier, sound is louder and clearer, clear, improve meeting efficiency.
The above, be only present pre-ferred embodiments, therefore can not limit scope of the invention process according to this, the equivalence change namely done according to the scope of the claims of the present invention and description with modify, all should still belong in scope that the present invention contains.
Claims (13)
1. a digital sound box, it is characterized in that: there is a multiplexing port, this multiplexing port can control it as audio input port or audio output port by a control signal, described audio amplifier plays self audio signal or extraneous audio signals, this extraneous audio signals is the audio signal being inputed to this audio amplifier by this multiplexing port, and this self audio signal exports by this multiplexing port.
2. a kind of digital sound box according to claim 1, it is characterized in that: comprise digital audio module, power amplifier module, logic selector switch and the first analog switch, this digital audio module also can send control signal to control this multiplexing port as audio input port or audio output port with external equipment data cube computation;
When this multiplexing port is as audio output port, self audio signal sends to this logic selector switch to amplify through power amplifier module and plays by this digital audio module, and this self audio signal can also send to this first analog switch to export through multiplexing port by this digital audio module;
When this multiplexing port is as audio input port, this extraneous audio signals amplifies output by power amplifier module successively after the first analog switch and logic selector switch;
This digital audio module receives self audio signal of original audio signal as this audio amplifier by data cube computation from external equipment.
3. a kind of digital sound box according to claim 2, it is characterized in that: also comprise the second analog switch, when this multiplexing port is as audio output port, self audio signal sends to this second analog switch to be exported by this multiplexing port through the first analog switch by this digital audio module;
This second analog switch is left channel audio signal or right channel audio signal by self audio signal of this output that elects.
4. a kind of digital sound box according to claim 3, it is characterized in that: also comprise the 3rd analog switch, when this multiplexing port is as audio output port, self audio signal sends to the 3rd analog switch to be amplified by this power amplifier module after logic selector switch and plays by this digital audio module, and self audio signal sends to the 3rd analog switch to be exported by multiplexing port after the second analog switch, the first analog switch by this digital audio module;
3rd analog switch with the mixing of the left and right sound channels signal of this self audio signal that elects whether.
5. a kind of digital sound box according to any one of claim 1 to 4, is characterized in that: this power amplifier module can open/stop control signal by one and opens to control it or stop.
6. a kind of digital sound box according to any one of claim 2 to 4, is characterized in that: this logic selector switch adopts two-way four-way logic switch, and this first analog switch adopts High-Speed Double-Channel analog switch.
7. a kind of digital sound box according to claim 3 or 4, is characterized in that: this second analog switch adopts High-Speed Double-Channel analog switch.
8. a kind of digital sound box according to claim 4, is characterized in that: the 3rd analog switch adopts High-Speed Double-Channel analog switch.
9. a kind of digital sound box according to any one of claim 1 to 4, is characterized in that: be provided with light source module, and this this lamp source module of digital audio model calling also can modulate the illumination effect of described light source according to this self audio signal or extraneous audio signals.
10. a kind of digital sound box according to any one of claim 1 to 4, is characterized in that: this self audio signal and extraneous audio signals all adopt differential mode to transmit.
11. a kind of digital sound boxes according to any one of claim 1 to 4, it is characterized in that: be also provided with USB interface and/or audio interface, this USB interface and/or audio interface connect this digital audio module, and this digital sound box is by this USB interface and/or audio interface data cube computation external equipment.
The method of attachment of 12. a kind of digital sound boxes according to any one of Claims 1-4, it is characterized in that: comprise two these digital sound boxes, coupled together between the multiplexing port of these two digital sound boxes by audio signal wire, the multiplexing port of one of them digital sound box is as audio output port, the multiplexing port of another digital sound box is automatically as audio input port, and the audio signal that these two digital sound boxes are play is respectively left channel audio signal and right channel audio signal, is formed as a pair stereo set audio amplifier.
The method of attachment of 13. a kind of digital sound boxes according to any one of Claims 1-4, it is characterized in that: comprise at least three these digital sound boxes, coupled together between the multiplexing port of the plurality of digital sound box by audio signal wire, wherein the multiplexing port of any one digital sound box is as audio output port, the multiplexing port of all the other digital sound boxes is automatically as audio input port, and the plurality of digital sound box plays identical audio signal, is formed as speaker array.
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| PCT/CN2015/095318 WO2016082728A1 (en) | 2014-11-25 | 2015-11-23 | Digital speaker box and connection method therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2016082728A1 (en) * | 2014-11-25 | 2016-06-02 | 新加坡振源科技有限公司 | Digital speaker box and connection method therefor |
| CN105259830A (en) * | 2015-10-20 | 2016-01-20 | 北京小鸟听听科技有限公司 | Voice box automatic switching method, apparatus and voice box device |
| CN107864428A (en) * | 2017-11-08 | 2018-03-30 | 苏州博那德音响科技有限公司 | The uniform sound field compartment system of flat panel loudspeaker |
| CN107889014A (en) * | 2017-11-10 | 2018-04-06 | 宁波日兴电子有限公司 | The automatic decision and open circuit and method of a kind of stereo set output signal |
| CN107889014B (en) * | 2017-11-10 | 2019-12-06 | 宁波日兴电子有限公司 | automatic judgment and starting circuit and method for output signal of sound equipment |
| CN108650592A (en) * | 2018-06-21 | 2018-10-12 | 珠海金山网络游戏科技有限公司 | A kind of method and stereo control system for realizing neckstrap formula surround sound |
| CN108650592B (en) * | 2018-06-21 | 2020-12-08 | 珠海金山网络游戏科技有限公司 | Method for realizing neck strap type surround sound and stereo control system |
| CN108566591A (en) * | 2018-06-29 | 2018-09-21 | 宁波东源音响器材有限公司 | Audio frequency processing circuit, sound system and stereo or compound voice the method for broadcasting |
| CN108566591B (en) * | 2018-06-29 | 2024-02-27 | 宁波东源音响器材有限公司 | Audio processing circuit, sound system and method for playing stereo or mixed sound |
| CN114650485A (en) * | 2020-12-18 | 2022-06-21 | 广西三诺数字科技有限公司 | Signal transmission method and device, computer equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104602160B (en) | 2018-11-06 |
| WO2016082728A1 (en) | 2016-06-02 |
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