CN208850029U - A kind of two-channel full-range cabinet signal system - Google Patents
A kind of two-channel full-range cabinet signal system Download PDFInfo
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- CN208850029U CN208850029U CN201821323187.9U CN201821323187U CN208850029U CN 208850029 U CN208850029 U CN 208850029U CN 201821323187 U CN201821323187 U CN 201821323187U CN 208850029 U CN208850029 U CN 208850029U
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Abstract
The utility model relates to art audio systems, specifically disclose a kind of two-channel full-range cabinet signal system, including left and right sound channels signal input part and left and right sound channels signal output end and Signal averaging module and frequency divider；The left side, right-channel signals input terminal passes through Active crossover filter respectively and connect with Signal averaging module, the left side, right-channel signals output end passes through frequency mixer respectively and connect with frequency divider, the Signal averaging module connects frequency divider, the utility model is on a left side, active dividing filter is added respectively after right-channel signals input terminal, and full frequency band is separated into 300Hz or less and 300Hz two above frequency range, then 300Hz left and right acoustic channels below are merged by a channel by Signal averaging module, the medium-high frequency of the low frequency and left and right acoustic channels that are merged into a channel is merged again, the full range signal after merging is finally fed respectively to left and right sound track signals output end, solve the problems, such as chamber bring low frequency response altogether and distortion.
Description
Technical field
The utility model relates to art audio systems more particularly to a kind of two-channel full-range cabinet signal systems.
Background technique
Two-channel full-range cabinet extends for the internal volume and bass that increase cavity, and industry widespread practice is left and right cavity
Any isolation is not done, left and right acoustic channels loudspeaker is allowed to be placed on through cavity to reach the cavity internal volume for increasing each resonance, but this
As chamber brings new problem altogether, as loudspeaker are big in low-frequency range amplitude and music signal or so channel low frequency ingredient is usual
It is inconsistent, therefore the movement of left and right loudspeaker is asynchronous always, phase is different, is lower so as to cause low frequency frequency response, loudspeaker wave fortune
Dynamic and distortion becomes larger；If the left and right acoustic channels of full frequency band are merged into a single channel, it is asynchronous to can solve the movement of left and right loudspeaker
The problem of, but all-channel sound channel makes the entire sound field of sound box system narrow.
Utility model content
In view of the above technical problems, the utility model provides a kind of effectively solution chamber bring low frequency response and distortion altogether
The two-channel full-range cabinet signal system of problem.
In order to solve the above-mentioned technical problem, concrete scheme provided by the utility model is as follows: a kind of two-channel full-range cabinet
Signal system, including left and right sound channels signal input part and left and right sound channels signal output end and Signal averaging module and frequency dividing
Device；The left and right sound channels signal input part passes through Active crossover filter respectively and connect with Signal averaging module, described left and right
Sound channel signal output end passes through frequency mixer respectively and connect with frequency divider, and the Signal averaging module connects frequency divider.
Preferably, the left channel signals output end is left horn, and the right-channel signals output end is right horn.
Preferably, full frequency band is divided into 300Hz or more and 300Hz following two frequency range by the Active crossover filter.
Preferably, 300Hz left and right sound channels signal input part below is merged into one and led to by the Signal averaging module
Road.
Compared with prior art, the utility model has the beneficial effects that: the utility model is inputted in left and right sound channels signal
Active dividing filter is added respectively after end, full frequency band is separated into 300Hz or less and 300Hz two above frequency range, then lead to
Cross Signal averaging module and 300Hz left and right acoustic channels below be merged into a channel, then by be merged into a channel low frequency and
The medium-high frequency of left and right acoustic channels merges, and the full range signal after merging is finally fed respectively to left and right sound track signals output end,
It solves the problems, such as chamber bring low frequency response altogether and distortion, left and right loudspeaker low frequency is made to remain that same-phase moves.
Detailed description of the invention
Fig. 1 is the system entire block diagram of the utility model；
Fig. 2 is that figure is compared in frequency response；
Fig. 3 is that total harmonic distortion compares figure.
Specific embodiment
It is right below in conjunction with the attached drawing of the utility model embodiment in order to which the technical solution of the utility model is described in detail
The technical solution of the utility model embodiment carries out clear, complete description.Obviously, described embodiment is the utility model
A part of the embodiment, instead of all the embodiments.Based on described the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained under the premise of being not necessarily to creative work, belongs to the model of the utility model protection
It encloses.
Please refer to Fig. 1, a kind of two-channel full-range cabinet signal system provided in this embodiment, including left and right sound channels signal
Input terminal and left and right sound channels signal output end and Signal averaging module and frequency divider；The left and right sound channels signal input part
It is connect respectively by Active crossover filter with Signal averaging module, the left and right sound channels signal output end passes through mixing respectively
Device is connect with frequency divider, and the Signal averaging module connects frequency divider, wherein left channel signals output end is left horn, right sound
Road signal output end is right horn.
Specifically, the present embodiment adds active dividing filter for full range respectively after left and right sound channels signal input part
Section is separated into 300Hz or less and 300Hz two above frequency range, then passes through Signal averaging module for 300Hz left and right sound below
Road is merged into a channel, and at this moment the frequency range of 300Hz or more is still to maintain stereo, then the low frequency that will be merged into a channel
It is merged respectively with the medium-high frequency of left and right acoustic channels, finally the full range signal after merging is passed through into frequency mixer respectively and be fed to left and right
Sound channel signal output end solves the problems, such as chamber bring low frequency response altogether and distortion, left and right loudspeaker low frequency is made to remain same phase
Position movement, according to frequency response curve contrast test, bass output power can increase one times, meanwhile, to total harmonic distortion in low-frequency range
1.5-3 times is reduced, as shown in Figures 2 and 3.
The above content is only the structure example and explanation of the utility model, and the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these it is aobvious and
The alternative forms being clear to belong to the protection scope of the utility model.
Claims (4)
1. a kind of two-channel full-range cabinet signal system, it is characterised in that: including left and right sound channels signal input part and left and right sound
Road signal output end and Signal averaging module and frequency divider；The left and right sound channels signal input part passes through Active crossover respectively
Filter is connect with Signal averaging module, and the left and right sound channels signal output end passes through frequency mixer respectively and connect with frequency divider, institute
State Signal averaging module connection frequency divider.
2. two-channel full-range cabinet signal system according to claim 1, it is characterised in that: the left channel signals output
End is left horn, and the right-channel signals output end is right horn.
3. two-channel full-range cabinet signal system according to claim 1, it is characterised in that: the Active crossover filter
Full frequency band is divided into 300Hz or more and 300Hz following two frequency range.
4. two-channel full-range cabinet signal system according to claim 3, it is characterised in that: the Signal averaging module will
300Hz left and right sound channels signal input part below is merged into a channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821323187.9U CN208850029U (en) | 2018-08-16 | 2018-08-16 | A kind of two-channel full-range cabinet signal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821323187.9U CN208850029U (en) | 2018-08-16 | 2018-08-16 | A kind of two-channel full-range cabinet signal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208850029U true CN208850029U (en) | 2019-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821323187.9U Expired - Fee Related CN208850029U (en) | 2018-08-16 | 2018-08-16 | A kind of two-channel full-range cabinet signal system |
Country Status (1)
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| CN (1) | CN208850029U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113810813A (en) * | 2020-06-12 | 2021-12-17 | 惠州迪芬尼声学科技股份有限公司 | Earphone body, earphone and method for adjusting sound pressure level by using earphone body |
-
2018
- 2018-08-16 CN CN201821323187.9U patent/CN208850029U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113810813A (en) * | 2020-06-12 | 2021-12-17 | 惠州迪芬尼声学科技股份有限公司 | Earphone body, earphone and method for adjusting sound pressure level by using earphone body |
| CN113810813B (en) * | 2020-06-12 | 2024-05-24 | 惠州迪芬尼声学科技股份有限公司 | Earphone body, earphone and method for adjusting sound pressure level by using earphone body |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190510 |
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| CF01 | Termination of patent right due to non-payment of annual fee |