CN201328191Y - Multi-track sound-source switching box and multi-track acoustic system - Google Patents
Multi-track sound-source switching box and multi-track acoustic system Download PDFInfo
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- CN201328191Y CN201328191Y CNU200820181250XU CN200820181250U CN201328191Y CN 201328191 Y CN201328191 Y CN 201328191Y CN U200820181250X U CNU200820181250X U CN U200820181250XU CN 200820181250 U CN200820181250 U CN 200820181250U CN 201328191 Y CN201328191 Y CN 201328191Y
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Abstract
The utility model relates to a multi-track sound-source switching box and a multi-track acoustic system. The switching box has the function for transforming multiple track sound sources and is connected with six signal output end ports of 5.1 track sound source and selectively outputs signals of the 5.1 track sound sources to an earphone with 5.1 track; moreover, the switching box can also directly convert the received reposing tri-dimensional signal, postposition tri-dimensional signal, central track and super bass signal to be six different track signals with 5.1 track sound source signal to be outputted to an amplifier, thereby being free from plugging a signal wire which is connected with the 5.1 track sound source.
Description
Technical field
The utility model relates to a kind of digital multi-sound-channel earphone decoding device, and is particularly related to a kind of multichannel digital three-dimensional sound field Headphone device that has.
Background technology
Along with the progress of numeral science and technology, people's life ﹠ amusement also tends to digitlization gradually.For instance, digital image and sound optical disk (Digital Versatile Disc generally abbreviates DVD as) player has been image playing device common in the general family.And because DVD player has had Dolby Digital (Dolby Digital) or Digital Theater System (Digital Theater System basically, generally abbreviate DTS as) decoding function, therefore can decode to digital signal, and the output analog signal makes 5.1 sound channel horn system sounding to the multichannel enlarger.
If will have the digital audio-video entertainment life of higher quality, multichannel enlarger and loudspeaker are indispensable outfits, and the loudspeaker of 5.1 sound channels are most basic multichannel loudspeaker.
The family's theater that generally has 5.1 sound channel enlargers and loudspeaker is when the DVD player broadcast is audio-visual, enlarger can be respectively amplifies left horn and the right horn and the supper bass loudspeaker (Sub Woofer) of the left horn that export preposition main sound channel to and right horn, center channel (Center) loudspeaker, surround channel (Surround or Rear) with different voice signals, make it produce 3 D space sound effect, the sense of reality of making us being personally on the scene.
Yet, under the situation that is not suitable for utilizing loudspeaker to play sound (for example being can hamper other people to do things), just must use earphone to listen to.General earphone only respectively sets loudspeaker at the right and left, so the user also can't enjoy the multichannel audio that DVD player is exported.For this reason, a kind of inside of known proposition has the earphone of a plurality of loudspeaker, has set preposition main sound channel loudspeaker, center channel loudspeaker, surround channel loudspeaker and supper bass loudspeaker at the right and left respectively, can be used for being connected to the source of sound of multichannel.
But the user is selecting to utilize enlarger to promote the loudspeaker listoning music of family's theater, or utilize the multi-sound-channel earphone listoning music, all must be in the face of connection and the plug between six signal output ports of DVD player, cause sizable puzzlement for the user, also increase the difficulty in user's the use.
The utility model content
The utility model proposes a kind of multichannel source of sound interconnecting device and multi-channel audio system.This interconnecting device has the function of multichannel source of sound conversion, in order to be connected to six signal output ports of 5.1 sound channel sound source, and with the signal-selectivity of 5.1 sound channel sound source export to outside the earphone with 5.1 sound channels plays, also can directly transfer the preposition three-dimensional signal that is received, rearmounted three-dimensional signal, center channel to six different sound channel signals with the supper bass signal and output to enlarger, and need not plug the holding wire that is connected with 5.1 sound channel sound source with 5.1 sound channel sound source signals.
Implement to the utility model proposes a kind of multichannel source of sound interconnecting device in the example one, comprise first input interface, frequency clipper circuit, strength control unit and output interface.This first input interface can be connected to one 5.1 sound channel sound source via one first audio signal wire.Then cutting 5.1 sound channel sound source via frequency after, the frequency clipper circuit finds out a plurality of sound source signals of corresponding sound channel.The strength control unit then is in order to be controlled the intensity of these sound source signals by the user.Output interface is exported respectively via left front after the strength control and is put three-dimensional signal (FL), right frontly puts three-dimensional signal (FR), left backly puts three-dimensional signal (RL), right backly puts three-dimensional signal (RR), center channel (Center) signal and the output of supper bass (Sub woofer) signal, wherein multichannel source of sound interconnecting device directly with 5.1 sound channel sound source switchings (Bypass) to output interface output.
Implement to the utility model proposes a kind of multichannel audio device in the example one, comprise multichannel sound source output device, above-mentioned multichannel source of sound interconnecting device and 5.1 sound channel earphone or enlargers.This multichannel source of sound interconnecting device is in order to the multichannel sound source output device, 5.1 sound channel sound source of DVD playing device for example, be transferred to one 5.1 sound channel earphones or an enlarger one of them, put three-dimensional signal (FL), right frontly put three-dimensional signal (FR), left backly put three-dimensional signal (RL), right back output of putting three-dimensional signal (RR), center channel (Center) and supper bass (Sub woofer) signal with direct reception switching (Bypass) left front, wherein enlarger is in order to promoting a multichannel loudspeaker group, and need not plug the holding wire that is connected with 5.1 sound channel sound source.
For above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, a preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Fig. 1 illustrates the utility model preferred embodiment and proposes the multi-channel audio system schematic diagram.
Fig. 2 A～Fig. 2 E show respectively the utility model interconnecting device that embodiment proposes on look, forward sight, backsight, a left side is looked and the right schematic diagram of looking.
Fig. 3 has the concrete enforcement circuit diagram of the function of switching (Bypass) 5.1 sound channel sound source by showing that the utility model embodiment is proposed in the interconnecting device.
Fig. 4 and Fig. 5 show that respectively applying to the utility model proposes multichannel source of sound interconnecting device and multi-channel audio system, comprise three pairs six and three pairs three multi-form RCA audio signal wire.
[graphic sign explanation]
The 110:DVD player
120: interconnecting device
130: earphone
140: enlarger
150: multichannel loudspeaker group
160:6 is to the RCA audio signal wire of 3 joints
168: the RCA audio signal wire of fixing 6 joints
170: holding wire
The 180:RCA audio signal wire
200: interconnecting device
220,222,224: adjust to change and turn round
260: the power input mouth
The 252:RCA audio signal wire
254: splicing ear
220: mains switch
322,324,326,328,330: frequency clipper circuit (Frequency Dividing Circuit)
331: band pass filter (Band_Pass)
332,334,336,338,340 and 341: volume control unit
350,352 and 354: audio frequency amplifier
360: transformer
370,372,374,376,378 and 380: output
Embodiment
The utility model proposes a kind of multichannel source of sound interconnecting device and multi-channel audio system.This interconnecting device has the function of multichannel source of sound conversion, in order to be connected to the output port of 5.1 sound channel sound source, and with the signal-selectivity of 5.1 sound channel sound source export to outside the earphone with 5.1 sound channels plays, also can directly transfer the preposition three-dimensional signal that is received, rearmounted three-dimensional signal, center channel to six different sound channel signal switchings (Bypass) with the supper bass signal and output to enlarger, and need not plug the holding wire that is connected with 5.1 sound channel sound source with 5.1 sound channel sound source signals.
For example receive from DVD player and export or game host is when providing the source of sound with 5.1 sound channels, comprise the preposition three-dimensional signal in the left and right sides (FR and FL), about six signal output ports such as rearmounted (RL and RR) three-dimensional signal, center channel (Center) signal and supper bass (Sub woofer) signal.And via six pairs three RCA holding wire, be connected to preposition three-dimensional signal (Front) receiving terminal, rearmounted three-dimensional signal (Rear) receiving terminal, center channel and supper bass signal (C/Sub) receiving terminal of interconnecting device, so that receive preposition three-dimensional signal, rearmounted three-dimensional signal, center channel and supper bass signal respectively.In another embodiment, also can be connected to personal computer or other sound sources that 5.1 sound channel sound source are provided via three pairs three RCA holding wire, and unrestricted.
Except source of sound being sent to earphone broadcast with 5.1 sound channels, this interconnecting device has preposition three-dimensional signal (Front), rearmounted three-dimensional signal (Rear), center channel and supper bass signal (C/Sub) are converted to the preposition three-dimensional signal in the left and right sides (FR and FL), about rearmounted (RL and RR) three-dimensional signal, six signals such as center channel (Center) signal and supper bass (Sub woofer) signal, and be directly connected to enlarger via the holding wire of six signal output ports and six pairs six, and with the preposition three-dimensional signal in the left and right sides (FR and FL), about rearmounted (RL and RR) three-dimensional signal, center channel (Center) signal and supper bass (Subwoofer) signal directly output to enlarger, and do not need will plug the holding wire that is connected with 5.1 sound channel sound source earlier.
Please refer to Fig. 1, proposed the multi-channel audio system schematic diagram by showing the utility model preferred embodiment.In this multi-channel audio system 100, comprise digital versatile disc (Digital Versatile Disc, beneath abbreviation " DVD ") player 110, the interconnecting device 120 that 5.1 sound channel sound source are provided, earphone 130, enlarger 140 and multichannel loudspeaker group 150 with 5.1 sound channels.Between DVD player 110 and the interconnecting device 120, be to utilize the RCA audio signal wire 160 of 6 pairs 3 joints to be connected, the part 162 that audio signal wire 160 has 6 links be connected to DVD player 110 right front put three-dimensional signal (FR and FL), about six signals such as rearmounted (RL and RR) three-dimensional signal, center channel (Center) signal and supper bass (Sub woofer) signal.The part 164 that audio signal wire 160 has 3 links then is preposition three-dimensional signal (Front) receiving terminal, rearmounted three-dimensional signal (Rear) receiving terminal, center channel and supper bass signal (C/Sub) receiving terminal (as the connecting interface 122 of figure sign) that is connected to interconnecting device 120.
The interconnecting device 120 of this multi-channel audio system 100 has more fixing RCA audio signal wire 168, is directly to be configured on the interconnecting device 120, and can directly be connected with sound source.
This has the earphone 130 of 5.1 sound channels, then be 3 links 172 by holding wire 170, be connected to the output interface 124 of interconnecting device 120, this output interface 124 provides preposition three-dimensional signal (Front), rearmounted three-dimensional signal (Rear), center channel and supper bass signal three kinds of signals such as (C/Sub).
And on this interconnecting device 120, optionally increase another output interface 126, can be connected to enlarger 140 by audio signal wire.As shown in Figure 1, the RCA audio signal wire 180 by 3 pairs 6 joints is connected between interconnecting device 120 and the enlarger 140.One end 182 of audio signal wire 180 is the output interfaces 126 that are connected to interconnecting device 120, and 126 outputs of this output interface comprise the preposition three-dimensional signal in the left and right sides (FR and FL), about six signals such as rearmounted (RL and RR) three-dimensional signal, center channel (Center) signal and supper bass (Sub woofer) signal.One end 184 of audio signal wire 180 then is to be connected to enlarger 140.By the amplification effect of enlarger, the left and right acoustic channels loudspeaker in the promotion multichannel loudspeaker group 150, right and left rings are around loudspeaker, center channel loudspeaker and mega bass loudspeaker.
Certainly, select among the embodiment one, interconnecting device 120 can include only output interface 124, and does not need to increase in addition output interface 126, and allows this interconnecting device 120 only be connected to the earphone 130 of 5.1 sound channels or enlarger 140.
Please refer to Fig. 2 A～Fig. 2 E, be respectively show the utility model interconnecting device that embodiment proposes on look, forward sight, backsight, schematic diagram that a left side is looked to be looked with the right side.This interconnecting device 200 comprises in order to the adjustment commentaries on classics of control output volume power turns round 220,222 and 224, shown in Fig. 2 A.Adjust to change and to turn round 220 intensity of controlling the supper bass sound channel signal, as shown in the figure " SUB " (Subwoofer).Adjust to change and to turn round 222 intensity of controlling the center channel signal, as shown in the figure " CEN " (Center).Adjust to change and to turn round 224 and control intensity preposition and around (Front+Rear) sound channel signal, as shown in the figure " VOL " (Volume).
Please refer to Fig. 2 B,, then have 3 out splice going splices (OUT) that connect the RCA audio signal wire, comprise preposition three-dimensional signal (Front), rearmounted three-dimensional signal (Rear) and center channel and supper bass signal (C/Sub) three out splice going splices at the side of interconnecting device 200.And please refer to Fig. 2 C, at another side of interconnecting device 200, then be 3 input adapters (IN) with RCA audio signal wire.Have a power input mouth 260, can be connected to power supply (9 volts of power supplys of the direct current in the diagram).In addition, this interconnecting device 200 also comprises the RCA audio signal wire 252 of fixed configurations, its have the preposition three-dimensional signal in the left and right sides (FR and FL), about the splicing ear 254 of six signals such as rearmounted (RL and RR) three-dimensional signal, center channel (Center) signal and supper bass (Sub woofer) signal.Please refer to Fig. 2 D, and, then be that a mains switch 220 is arranged, can open or close this interconnecting device 200 at another side.
The interconnecting device that the utility model embodiment is proposed has the function of switching (Bypass) 5.1 sound channel sound source, is finished with the concrete enforcement circuit as Fig. 3.Please refer to Fig. 3, for the signal that is received, comprise the left front three-dimensional input signal (FLIN) of putting, the right front three-dimensional input signal (FRIN) of putting, the three-dimensional input signal of left back putting (RLIN), the three-dimensional input signal of right back putting (RRIN), center channel input signal (CIN) is sent to frequency clipper circuit (Frequency DividingCircuit) 322 respectively with supper bass input signal (SWIN), 324,326,328,330, so that limit the frequency range of each sound channel, frequency clipper circuit 322 and 324 for example, respectively a left side is put three-dimensional input signal (FLIN) and the right front three-dimensional input signal (FRIN) of putting, be limited between 25 hertz (Hz) to 20000 hertz (Hz). Frequency clipper circuit 326 and 328 then is that three-dimensional input signal of left back putting (RLIN) and the three-dimensional input signal of right back putting (RR) are limited between 650 hertz (Hz) to 20000 hertz (Hz).330 of frequency clipper circuits are that center channel (CIN) input signal is limited between 300 hertz (Hz) to 20000 hertz (Hz).In addition, supper bass input signal (SWIN) then is to utilize band pass filter (Band_Pass) 331 to be limited between 65 hertz (Hz) to 135 hertz (Hz).
The sound source signal of handling through overfrequency clipper circuit 322～330 and band pass filter 331 then is can be via being adjusted big or small via the control of volume (as shown in the figure 332,334,336,338,340 and 341) respectively.In addition, after in addition appropriateness is amplified via audio frequency amplifier 350,352 and 354 respectively, via output 370,372,374,376,378 and 380, export left front three-dimensional input signal (FLOUT), right front three-dimensional input signal (FROUT), the three-dimensional input signal of left back putting (RLOUT), the three-dimensional input signal of right back putting (RROUT), the center channel input signal (COUT) and supper bass input signal (SWOUT) put put respectively.Above-mentioned audio frequency amplifier 350,352 and 354 mainly is in order to the signal behind the frequency division is amplified, and in one embodiment, can be the low-power audio amplifier, for example has the amplifier of 70 milliwatts (mW).And audio frequency amplifier 350,352 and 354 then is can be via the power supply 362 of external power source after via rectifier rectification, and obtains the power supply of operation via the conversion of transformer 360.
Please refer to Fig. 4 and Fig. 5, show that respectively applying to the utility model proposes multichannel source of sound interconnecting device and multi-channel audio system, comprises three pairs six and three pairs three multi-form RCA audio signal wire.As shown in Figure 4, in three pairs six RCA audio signal wire, in three splicing ear parts, signal classification with different color differentiating connections, for example F represents preposition three-dimensional signal (Front), R represents rearmounted three-dimensional signal (Rear), and C represents center channel and supper bass signal (C/Sub).And in six splicing ear parts, also be the signal classification that connects with different color differentiating, comprise the preposition three-dimensional signal in the left and right sides (FR and FL), about splicing ears such as rearmounted (RL and RR) three-dimensional signal, center channel (C) signal and supper bass (SW) signal.
And Fig. 5 is in three pairs three the RCA audio signal wire, its three splicing ears part, with the signal classification that different color differentiatings connects, for example F represents preposition three-dimensional signal (Front), R represents rearmounted three-dimensional signal (Rear), and C represents center channel and supper bass signal (C/Sub).
Though the utility model with preferred embodiment openly as above; right its is not in order to limit the utility model; those skilled in the art; in not breaking away from spirit and scope of the present utility model; when doing a little change and retouching, therefore protection range of the present utility model is as the criterion when looking the appended claims person of defining.
Claims (6)
1. multichannel source of sound interconnecting device comprises:
One first input interface can be connected to one 5.1 sound channel sound source via one first audio signal wire;
One frequency clipper circuit, with this 5.1 sound channel sound source via a plurality of sound source signals of finding out corresponding sound channel after the frequency cutting;
One strength control unit is in order to be controlled the intensity of these sound source signals by the user; And
One output interface, export respectively via left front after the strength control and put three-dimensional signal FL, right frontly put three-dimensional signal, left backly put three-dimensional signal, right backly put three-dimensional signal, center channel signal and the output of supper bass signal, wherein this multichannel source of sound interconnecting device is transferred to this output interface output with this 5.1 sound channel sound source.
2. multichannel source of sound interconnecting device as claimed in claim 1, also comprise a built-in audio signal wire, have this left front three-dimensional signal, these right front three-dimensional signal, these left back three-dimensional signal, these right back six input adapters putting three-dimensional signal, this center channel signal and supper bass signal put put put.
3. multichannel source of sound interconnecting device as claimed in claim 1, wherein this first input interface is to be connected to this 5.1 sound channel sound source via six pairs three RCA holding wire.
4. multichannel source of sound interconnecting device as claimed in claim 1, wherein this output interface comprises preposition three-dimensional signal, rearmounted three-dimensional signal and center channel and three out splice going splices of supper bass signal, in order to be connected to by second audio signal wire with three joints one 5.1 sound channel earphones or an enlarger one of them.
5. multichannel source of sound interconnecting device as claimed in claim 4, wherein this preposition three-dimensional signal joint is exported this left front three-dimensional signal and this right front three-dimensional signal of putting put, three-dimensional signal and this right back three-dimensional signal of putting should be left backly put in the output of this postposition three-dimensional signal joint, and this center channel and supper bass Signal connector are exported this center channel signal and this supper bass signal.
6. multichannel audio device comprises:
One multichannel sound source output device is in order to export one 5.1 sound channel sound source;
One multichannel source of sound interconnecting device, in order to directly this 5.1 sound channel sound source is transferred out, wherein this multichannel source of sound interconnecting device comprises:
One first input interface can be connected to one 5.1 sound channel sound source via one first audio signal wire;
One frequency clipper circuit, with this 5.1 sound channel sound source via a plurality of sound source signals of finding out corresponding sound channel after the frequency cutting;
One strength control device is in order to be controlled the intensity of these sound source signals by the user; And
One output interface is exported respectively via left front after the strength control and is put three-dimensional signal, right frontly puts three-dimensional signal, left backly puts three-dimensional signal, right backly puts three-dimensional signal, center channel signal and the output of supper bass signal; And
One 5.1 sound channel earphones or an enlarger, one of them is connected to this multichannel source of sound interconnecting device via one second audio signal wire, and receive that this that received via switching left frontly put three-dimensional signal, this right frontly puts three-dimensional signal, this left backly puts three-dimensional signal, this right back output of putting three-dimensional signal, this center channel and supper bass signal, wherein this enlarger is in order to promote a multichannel loudspeaker group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820181250XU CN201328191Y (en) | 2008-12-18 | 2008-12-18 | Multi-track sound-source switching box and multi-track acoustic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820181250XU CN201328191Y (en) | 2008-12-18 | 2008-12-18 | Multi-track sound-source switching box and multi-track acoustic system |
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| Publication Number | Publication Date |
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| CN201328191Y true CN201328191Y (en) | 2009-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820181250XU Expired - Fee Related CN201328191Y (en) | 2008-12-18 | 2008-12-18 | Multi-track sound-source switching box and multi-track acoustic system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104041079A (en) * | 2012-01-23 | 2014-09-10 | 皇家飞利浦有限公司 | Audio rendering system and method therefor |
| CN104036817A (en) * | 2013-03-05 | 2014-09-10 | 联想(北京)有限公司 | Audio playing method, device and electronic equipment |
-
2008
- 2008-12-18 CN CNU200820181250XU patent/CN201328191Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104041079A (en) * | 2012-01-23 | 2014-09-10 | 皇家飞利浦有限公司 | Audio rendering system and method therefor |
| CN104036817A (en) * | 2013-03-05 | 2014-09-10 | 联想(北京)有限公司 | Audio playing method, device and electronic equipment |
| CN104036817B (en) * | 2013-03-05 | 2017-11-28 | 联想(北京)有限公司 | Audio frequency playing method, device and electronic equipment |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091014 Termination date: 20131218 |