CN201878316U - Sound with three-dimensional (3D) effect - Google Patents
Sound with three-dimensional (3D) effect Download PDFInfo
- Publication number
- CN201878316U CN201878316U CN2010206612352U CN201020661235U CN201878316U CN 201878316 U CN201878316 U CN 201878316U CN 2010206612352 U CN2010206612352 U CN 2010206612352U CN 201020661235 U CN201020661235 U CN 201020661235U CN 201878316 U CN201878316 U CN 201878316U
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- audio amplifier
- sound
- effect
- signal
- power amplifier
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Abstract
The utility model provides a sound with a three-dimensional (3D) effect. Left and right high-frequency signals output by a power amplifier unit are respectively connected with a left sound box and a right sound box. The output of the power amplifier unit is connected with a woofer which only outputs left and right adding low-frequency signals through a corresponding signal processing and amplifying circuit, and the output of the power amplifier unit is also connected with a front sound box and a back sound box, wherein the front sound box enables the left and right signals to add, and the back sound box corresponds to the front sound box and enables the left and right signals to subtract. In the utility model, left and right channel output, left-adding-right channel output, left-subtracting-right or right-subtracting-left channel output can be carried out through various signal generating modes. By adopting the utility model, vivid sound is reproduced especially for playing CD, VCD and the like which contain dialogue effect and surround sound matched with images. In addition, the sound has adjustable equalization, and is capable of adjusting different volumes for playing sound sources with different qualities so as to further achieve the surround and vivid effect.
Description
Technical field
The utility model relates to the sound technique field, relates in particular to a kind of sound equipment of tool 3D effect.
Background technology
At present, along with the raising of people's living standard, people are also more and more higher to the functional requirement of sound equipment.Existing, the power amplifier of various monophonys or dual track and audio amplifier, comprise one or several loud speakers and frequency divider sound in the audio amplifier with reproduction full range band, for example, one three road audio amplifier comprises, a frequency divider and three loud speakers send high, medium and low frequency sound respectively, export to realize the full range band by frequency inverted level and smooth between three loud speakers.Stereo double channel is to adopt two audio amplifiers symmetries to place, and this sound provides sound between two audio amplifiers for listening the hearer, has reproduced stereo sound for the hearer that listens on axis between two audio amplifiers.But because stereo sounding in one plane has the 3D surrounding sound effect so can't produce.
Summary of the invention
The purpose of this utility model is to provide a kind of cost lower, and circuit is simple and have a sound equipment of 3D surrounding sound effect.
The new purpose of this practicality is achieved through the following technical solutions.
A kind of sound equipment of tool 3D effect, the left and right high-frequency signal of its power amplifier unit output connects left and right audio amplifier respectively, the output of described power amplifier unit connects the subwoofer of the low frequency signal of only exporting left and right sides addition by the corresponding signal process amplifying circuit, and power amplifier unit output also is connected to the rearmounted audio amplifier that preposition audio amplifier and corresponding preposition audio amplifier with the left and right signal addition subtract each other left and right signal.
Wherein: described power amplifier unit output connects left and right audio amplifier by the signal processing amplifying circuit.
Wherein: described preposition audio amplifier is a double-coil loudspeaker, and its left and right road signal is added in "+" end of two voice coil loudspeaker voice coils respectively, and equal ground connection is held by "-" of two voice coil loudspeaker voice coils.
Wherein: described preposition audio amplifier is two single-tone circle loud speakers, and left and right road signal is added in "+" end of two voice coil loudspeaker voice coils respectively, and equal ground connection is held by "-" of two voice coil loudspeaker voice coils.
Wherein: described left and right audio amplifier has high pass filter.
Wherein: described power amplifier unit places in the subwoofer.
Wherein: described rearmounted audio amplifier has independently volume control potentiometer.
The utility model embodiment compared with prior art, beneficial effect is: the utility model is by various signal producing methods, can carry out left and right passage output, a left side adds right passage output, a left side subtracts the right side or the right side subtracts left passage output.The utility model reproduces sound true to nature, particularly play CD, VCD etc. is contained the surround sound that dialogue effect and image match, and it has adjustable equilibrium, therefore for the broadcast source of sound of different quality, can adjust coin with volume, further to reach around, effect true to nature.
Description of drawings
Fig. 1 is that the utility model is provided with the formation block diagram;
Fig. 2 is a kind of embodiment circuit structure diagram of the preposition audio amplifier of the utility model;
Fig. 3 is the another kind of embodiment circuit structure diagram of the preposition audio amplifier of the utility model;
Fig. 4 is the rearmounted audio amplifier circuit structure diagram of the utility model;
Fig. 5 is the left and right audio amplifier circuit structure diagram of the utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
See also shown in the figure l, power amplifier unit output connects subwoofer, preposition audio amplifier, rearmounted audio amplifier and has the left and right audio amplifier that high pass filter is only exported high-frequency signal by the corresponding signal process amplifying circuit.Power amplifier unit can place in the subwoofer, reducing cost, and can save placement space.Subwoofer is only sent the low frequency part of (being the L+R signal) of right (R) signal plus in a left side (L).
Shown in Figure 1, comprise a stereo signal source, this signal source can be TV, LD, VCD, CD, VCR, deck, recorder or other any stereophonic signal.Audio signal of source of sound output is connected to subwoofer and power amplifier unit by cable, and after two paths of signals was received in this unit, process signal processing and amplification were passed in the system again and gone in each audio amplifier.
This device subwoofer receives the L+R signal, but output low frequency part signal only, and left and right amplifying signal also exports preposition audio amplifier to simultaneously, preposition receive left and right road signal after, carry out (L+R) stack, sound in the face of the audience then.Power amplifier unit is exported left road signal simultaneously and is given left voice box, and the right wing signal is given right voice box, and comparatively speaking, left and right sides audio amplifier is less, only export the medium-high frequency signal, and it is accurately positioned.Rearmounted audio amplifier is received one (L-R)-or (R-L) signal, is used to produce the background surrounding sound effect.
Fig. 2, the 3rd, the preposition audio amplifier circuit structure diagram of the utility model, it forms mode by two kinds.The loud speaker of preposition audio amplifier is a double-coil loudspeaker among Fig. 2, left and right road signal after amplify this moment is added in "+" end of two voice coil loudspeaker voice coils respectively, " one " of two voice coil loudspeaker voice coils holds equal ground connection, like this, this loud speaker produces a stack (L+R) signal: the loud speaker of preposition audio amplifier is a west single-tone circle loud speaker among Fig. 3, left and right sides road signal is connected on two loud speakers "+" end respectively, and " " holds equal ground connection, also produces stack (L+R) signal.
Fig. 4 is the rearmounted audio amplifier circuit structure diagram of the utility model, the loud speaker of rearmounted audio amplifier is single-tone Bin, in order to obtain (L-R) or (R-L) signal, loud speaker connects a left side and right signal respectively for two groups, be that OUT1 and OUT2 directly are connected on this loud speaker two ends, the part that differs of OUT1 and OUT2 makes its sounding like this, promptly obtains a difference signal, and rearmounted audio amplifier is (L-R) or (R-L) signal does not influence its effect.And rearmounted audio amplifier has independently volume control potentiometer W3, can regulate its volume separately according to other volume, to adapt to different space structures and different putting position to produce optimum efficiency.
Fig. 5 is the left and right audio amplifier circuit structure diagram of the utility model, because the effect of high pass filter, the frequency of left and right sides audio amplifier is limited in medium-high frequency, only sends the medium-high frequency signal, and this just gets the audience and feels that voice is only near the preposition audio amplifier.
The utility model can carry out left and right passage output by various signal producing methods, and a left side adds right passage output, and a left side subtracts the right side or the right side subtracts left passage output.The utility model reproduces sound true to nature, particularly play CD, VCD etc. is contained the surround sound that dialogue effect and image match, and it has adjustable equilibrium, therefore for the broadcast source of sound of different quality, can adjust coin with volume, further to reach around, effect true to nature.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (7)
1. the sound equipment of a tool 3D effect, the left and right high-frequency signal of its power amplifier unit output connects left and right audio amplifier respectively, it is characterized in that: the output of described power amplifier unit connects the subwoofer of the low frequency signal of only exporting left and right sides addition by the corresponding signal process amplifying circuit, and power amplifier unit output also is connected to the rearmounted audio amplifier that preposition audio amplifier and corresponding preposition audio amplifier with the left and right signal addition subtract each other left and right signal.
2. according to the sound equipment of the described tool 3D effect of claim l, it is characterized in that: described power amplifier unit output connects left and right audio amplifier by the signal processing amplifying circuit.
3. the sound equipment of tool 3D effect according to claim 1 is characterized in that: described preposition audio amplifier is a double-coil loudspeaker, and its left and right road signal is added in "+" end of two voice coil loudspeaker voice coils respectively, and equal ground connection is held by "-" of two voice coil loudspeaker voice coils.
4. according to the sound equipment of the described tool 3D effect of claim l, it is characterized in that: described preposition audio amplifier is two single-tone circle loud speakers, and left and right road signal is added in "+" end of two voice coil loudspeaker voice coils respectively, and equal ground connection is held by "-" of two voice coil loudspeaker voice coils.
5. the sound equipment of tool 3D effect according to claim 2 is characterized in that: described left and right audio amplifier has high pass filter.
6. the sound equipment of tool 3D effect according to claim 1 is characterized in that: described power amplifier unit places in the subwoofer.
7. according to the sound equipment of the described tool 3D effect of claim l, it is characterized in that: described rearmounted audio amplifier has independently volume control potentiometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206612352U CN201878316U (en) | 2010-12-15 | 2010-12-15 | Sound with three-dimensional (3D) effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206612352U CN201878316U (en) | 2010-12-15 | 2010-12-15 | Sound with three-dimensional (3D) effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201878316U true CN201878316U (en) | 2011-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206612352U Expired - Fee Related CN201878316U (en) | 2010-12-15 | 2010-12-15 | Sound with three-dimensional (3D) effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201878316U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103504859A (en) * | 2012-06-27 | 2014-01-15 | 金建萍 | Hypnotizing music bed (Water Cube shape) |
-
2010
- 2010-12-15 CN CN2010206612352U patent/CN201878316U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103504859A (en) * | 2012-06-27 | 2014-01-15 | 金建萍 | Hypnotizing music bed (Water Cube shape) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20191215 |
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| CF01 | Termination of patent right due to non-payment of annual fee |