CN207652628U - It is a kind of effectively to avoid the stereo set uttered long and high-pitched sounds - Google Patents
It is a kind of effectively to avoid the stereo set uttered long and high-pitched sounds Download PDFInfo
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- CN207652628U CN207652628U CN201721726079.1U CN201721726079U CN207652628U CN 207652628 U CN207652628 U CN 207652628U CN 201721726079 U CN201721726079 U CN 201721726079U CN 207652628 U CN207652628 U CN 207652628U
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- pitched sounds
- stereo set
- uttered long
- effectively avoiding
- loud speaker
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- 238000009826 distribution Methods 0.000 claims abstract description 7
- 238000005192 partition Methods 0.000 claims description 5
- 230000005236 sound signal Effects 0.000 claims description 3
- 241000208340 Araliaceae Species 0.000 claims 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims 1
- 235000003140 Panax quinquefolius Nutrition 0.000 claims 1
- 235000008434 ginseng Nutrition 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000003321 amplification Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Abstract
The utility model discloses a kind of stereo sets for effectively avoiding uttering long and high-pitched sounds comprising：Loudspeaker assembly, the loudspeaker assembly include the loud speaker of at least two rotational symmetry distributions, and the axis of symmetry of the rotational symmetry of the loud speaker is intersected in a central pivot point jointly with the axis of loud speaker itself, and the central pivot point is for connecting microphone assembly.Compared with prior art, the utility model effectively avoids the stereo set uttered long and high-pitched sounds, it passes through being distributed in loudspeaker rotational symmetry formula on sound cavity shell, and the microphone of microphone assembly is connected to by connecting pole on the axis of symmetry of loudspeaker rotational symmetry and the central pivot point of loud speaker axis joint, the resonance to reduce microphone speaker equipment integrating to the greatest extent passes to microphone (sound pick-up) from sound cavity shell and leads to the problem of uttering long and high-pitched sounds.
Description
Technical field
The utility model is related to audio frequency power amplifier technical field more particularly to a kind of stereo sets for effectively avoiding uttering long and high-pitched sounds.
Background technology
Microphone and sound equipment are common a kind of voice frequency power amplification equipments in Karaoke.Since traditional microphone and sound equipment are set
Standby is all to use separation independent, and this separation independent mode can improve the quality of audio, but for some amusements etc.
In non professional environment, this self contained facility is bulky, and use is extremely inconvenient.But it is existing by microphone and sound equipment collection
At the portable device in one resonance, self-excitation Effect (namely uttering long and high-pitched sounds) are necessarily brought since the two is integrated in one.It is this
Resonance feedback self-oscilation effect is typically derived from two aspects, and one is returned by air, second is that equipment itself resonates；Air
It is smaller to return General Influence, and equipment itself influences to become apparent since solid-borne sound transmission is very fast.
To solve the above-mentioned problems, such as Chinese patent, Patent No.：2016183818.3 disclosing a kind of microphone sound
Microphone is connected on the central axis of the loudspeaker of symmetrical distribution by microphone holder, passes through acoustic phase by case equipment integrating
Principle of cancellation, to weaken the influence uttered long and high-pitched sounds.But this mode is ineffective, resonance still can by sound cavity shell etc. its
He is partly directly passed to microphone.
Utility model content
The purpose of this utility model is to provide a kind of stereo sets for effectively avoiding uttering long and high-pitched sounds, and which solve current microphones
Speaker equipment integrating will produce the technical issues of uttering long and high-pitched sounds.
In order to achieve the above objectives, the technical solution that the utility model is proposed is：
The a kind of of the utility model effectively avoids the stereo set uttered long and high-pitched sounds comprising：Loudspeaker assembly, the loud speaker group
Part includes the loud speaker of at least two rotational symmetry distributions, the axis of symmetry and the loud speaker itself of the rotational symmetry of the loud speaker
Axis is intersected in a central pivot point jointly, and the central pivot point is for connecting microphone assembly.
Wherein, the loud speaker is respectively connected on respectively on an independent sound chamber, and the central pivot point is located at the sound
Except chamber.
Wherein, the loud speaker is commonly connected on a sound chamber, and the shell of the sound chamber is additionally provided with one by described
The groove of heart fulcrum.
Wherein, the groove is the gap slot through sound cavity shell, and the cavity connection of the lower section of the gap slot is excellent
Choosing, the bottom of the gap slot is generally aligned in the same plane interior with the central pivot point.
Wherein, the groove has the tubular channel that the case top of sound chamber extends downwardly out for one, it is preferred that the pipe
The bottom of shape slot is generally aligned in the same plane interior with the central pivot point.
Wherein, a partition board is additionally provided in the connection cavity below the gap slot, entire sound chamber is averaged by the partition board
It is divided into two.
Wherein, further include microphone assembly and control circuit board, the loudspeaker assembly and microphone assembly are electrically connected
In the control circuit board, the Audio Signal Processing that microphone enters is amplified by loudspeaker assembly later, the Mike
Wind component includes sound pick-up, and the sound pick-up is connected to the central pivot point.
Wherein, a connecting pole is additionally provided on the sound pick-up, the end of the connecting pole is connected at the central pivot point,
And the central axis of the connecting pole is overlapped with the axis of symmetry of rotational symmetry.
Wherein, the surfaces of revolution of rotational symmetry of central axis and loud speaker of the connecting pole is vertical.
Wherein, further including one handle, a power supply is equipped in the handle, the handle is connected to the loudspeaker assembly,
Namely loudspeaker assembly is connected to the upper top of handle.
Wherein, the loudspeaker assembly is connected to the lower end of handle.
Preferably, the speaker performance parameter is identical.
Wherein, the loud speaker is divided into bass group, middle pitch group and/or high pitch group.
Wherein, the control circuit board includes：Voice processing module, music processing module export power amplifier module, described
Music processing module includes the circuit module or dsp chip for eliminating voice, and the voice processing module includes optimization
The circuit module or dsp chip of voice.
Compared with prior art, the utility model effectively avoids the stereo set uttered long and high-pitched sounds, by by whole loudspeaker
Rotational symmetry formula is distributed on sound cavity shell, and the microphone of microphone assembly is connected to loudspeaker rotational symmetry by connecting pole
The axis of symmetry and loud speaker axis joint central pivot point on, integrally set to reduce microphone speaker to the greatest extent
Standby resonance passes to microphone (sound pick-up) from sound cavity shell and leads to the problem of uttering long and high-pitched sounds.
Description of the drawings
Fig. 1 is the overall structure diagram that the utility model effectively avoids the stereo set uttered long and high-pitched sounds.
Fig. 2 is the sectional view that the utility model effectively avoids the stereo set uttered long and high-pitched sounds.
Fig. 3 the utility model effectively avoids the explosive view for the stereo set first embodiment uttered long and high-pitched sounds.
Fig. 4 is the loudspeaker assembly and microphone assembly one of which that the utility model effectively avoids the stereo set uttered long and high-pitched sounds
Combined connecting structure schematic diagram.
Fig. 5 and Fig. 6 is the structural schematic diagram that the utility model effectively avoids the stereo set second embodiment uttered long and high-pitched sounds.
Fig. 7 and Fig. 8 is the structural schematic diagram that the utility model effectively avoids the stereo set 3rd embodiment uttered long and high-pitched sounds.
Fig. 9 and Figure 10 is the structural schematic diagram that the utility model effectively avoids the stereo set fourth embodiment uttered long and high-pitched sounds.
Specific implementation mode
Below with reference to attached drawing, the utility model is further described in detail.
Attached drawing 1 is please referred to attached drawing 10, in the present embodiment, this is effectively avoided the stereo set uttered long and high-pitched sounds comprising：Mike
Wind component 1 is connected to the loudspeaker assembly 2 of the microphone assembly 1, one handle component is connected on the loudspeaker assembly 2
3, the microphone assembly 1 and Handleset 3 are divided into the both sides of loudspeaker assembly 2.
Wherein, the loudspeaker assembly 2 includes the loud speaker 22 of at least two rotational symmetry distributions, the rotation of the loud speaker 22
Turn axis (as shown in Fig. 4 laterally void of the symmetrical axis of symmetry (longitudinal dotted line in such as attached drawing 4) with loud speaker 22 itself
Line) it is intersected in a central pivot point jointly, the central pivot point is for connecting microphone assembly 1.
More specifically, the loudspeaker assembly 2 further includes：Sound chamber 21, the sound chamber 21 are interior centrosymmetric equipped with one
Cavity 211 is additionally provided at least two symmetrical loud speakers 22 and a control circuit board 25 on the sound chamber 21, wherein institute
It states loud speaker 22 and microphone assembly 1 is electrically connected to the control circuit board 25, the microphone assembly 1 is connected to described raise
In the symmetrical center line of sound device 22.Wherein, the cavity 211 in sound chamber 21 is regular prism-shaped, ball-shaped, spheroid shape, cubic type
Etc. the cavity of any other rotational symmetry.
Wherein, in embodiment 1, the sound chamber includes at least two sound chamber 21 independently, only with two in attached drawing 3
It is illustrated for a sound chamber 21, the structure of extra two sound chambers is analogized with this principle.The loud speaker 22 is connected to respectively
From independent sound chamber 21 shell on, at this point, the central pivot point is located in except the shell of whole sound chambers.
Such as in second embodiment and 3rd embodiment, the sound chamber 21 is a whole sound chamber, the loud speaker 22
It is all connected on the same whole sound chamber, wherein the shell of the sound chamber 21 passes through the recessed of the central pivot point equipped with one
Slot 212, in attached drawing 5 and attached drawing 7, the groove 212 is the gap slot through the shell of sound chamber 21, the gap slot
The cavity of lower section is connected to, it is preferred that in the bottom of the gap slot and the central pivot point are generally aligned in the same plane, so as to microphone
The connecting pole of component is directly connected in the bottom portion of groove and is used to support.
It is fourth embodiment referring to attached drawing 9, in this embodiment, sound chamber 21 is equally an overall structure,
It is a tubular channel for having the case top of sound chamber to extend downwardly out difference lies in the groove 212, it is preferred that the tubulose
In the bottom of slot and the central pivot point are generally aligned in the same plane, so that the lower end of the connecting pole of microphone assembly is directly connected in
Tubulose trench bottom.
Wherein, be additionally provided with a partition board 213 in the connection cavity below second embodiment, the gap slot, it is described every
Entire sound chamber is averagely divided into two by plate 213.
Referring to attached drawing 3, the present embodiment effectively to avoid the stereo set uttered long and high-pitched sounds further include microphone assembly 1, institute
The microphone assembly 1 stated includes：Sound pick-up 12 is connected to the connecting pole 13 of the sound pick-up 12, the end of the connecting pole 13
It is connected in the symmetrical center line of the loud speaker 22 and control circuit board 25.The loudspeaker assembly 2 and microphone assembly
1 is electrically connected to the control circuit board 25, and the Audio Signal Processing that microphone assembly 1 is entered is later by loudspeaker assembly
2 amplifications, the microphone assembly 1 include sound pick-up 12, and the sound pick-up 12 is connected to the central pivot point.
Preferably, the end of the connecting pole 13 is connected at the above-mentioned central pivot point of loud speaker 22.At this point, symmetrically setting
Resonance almost all phase cancellation at symmetrical centre point caused by the loudspeaker of meter, the microphone connected herein can be to greatest extent
Reduction is uttered long and high-pitched sounds influence, it is preferred that the connecting pole 13 is made of flexible material, to weaken the propagation to sound wave.Sound pick-up 12
And connecting pole 13 is connected and fixed on commonly through a top plate 14 on loudspeaker assembly 2.Wherein, it is also covered outside the sound pick-up 12
Equipped with one meter of head-shield 11.
Preferably, the end of the connecting pole 13 is connected at the central pivot point, and the central shaft of the connecting pole 13
Line is overlapped with the axis of symmetry of rotational symmetry.And the rotational symmetry of the central axis of the connecting pole 13 and loud speaker 22
The surfaces of revolution is vertical.At this point, the sound wave that loud speaker 22 is sent out is equal in each lengthwise position wave-path of the connecting pole, phase cancellation effect
It is best.
Wherein, the quantity of the sound chamber 21 is at least two, and the sound chamber 21 is distributed along same central symmetry, is set to institute
It states the loud speaker 22 on sound chamber 21 while being also to be distributed along central symmetry.In the present embodiment, there are two sound chamber 21 is set, in a left side
Right symmetrical, respective side is equipped with the installing port for installing loud speaker 22, and the inside of two sound chambers 21 is separate type,
The end of connecting pole 13 is connected at the symmetrical centre point of two-loudspeaker 22 at this time.And the microphone assembly 1 and loud speaker
The connecting fulcrum of component 2 is located at the outside of the sound chamber 21.If the inside of whole sound cavity shells 22 is to be interconnected, center
Fulcrum portion within the cavity.
More specifically, referring to attached drawing 2, the connecting pole 13 is a connecting pole, which is flexible material
It is made, the vertical line namely the plane where loudspeaker that the connecting pole coincides with the mistake symmetrical centre point of loudspeaker Plane of rotation, and
It crosses on the vertical line of loudspeaker symmetrical centre point, connecting pole coincides with the vertical line, although at this point, to four sides from tucket wave source
The sound wave propagated from all directions, there are certain angles at above-mentioned vertical line, and acoustic phase can not all be offset, but vertical line
On sound wave cancellation level be the largest, further reduce the interference effect that sound chamber itself resonates.Certainly, position of the fulcrum can be with
It is moved along 10 cm ranges above and below this vertical line.
Certainly, in other embodiment, the outside of the sound chamber 21 is equipped with the opening of connection loudspeaker, the inside of sound cavity shell
It is interconnected or respectively seals off, but it must be ensured that whole sound cavity shell and loudspeaker are with the same symmetrical centre pair
Claim distribution.
Preferably, the specification for being set to the loud speaker 22 in the opening on the sound chamber 21 is identical with parameter, so as to the two
Amplitude, frequency, wavelength is identical, and the position where sound pick-up 12, which is uttered long and high-pitched sounds, influences minimum.
In addition, the sound chamber 21 can also be rotational symmetry, the loud speaker 22 being set on the sound chamber 21 is also rotation
Symmetrically.At this point, the pickup direction of raise one's voice direction and the microphone of the loudspeaker of loud speaker is mutually perpendicular to, but also still allow for 30 degree
Within deviation.Further include except rotational symmetry herein：Axial symmetry, central symmetry, radiation symmetric, mirror symmetry.
Referring to attached drawing 3, further, the outside of the sound chamber 21 is additionally provided with for by multiple sound cavity shells and loudspeaker
The front, rear, left and right shell 24,23,26 and 27 that is assembled into one.
The Handleset 3 includes：Handle 31, it is convenient hand-held to be used herein as this and effectively avoid the microphone speaker uttered long and high-pitched sounds
Equipment, wherein be additionally provided with a vessel 311 on handle 31, power supply 33 be equipped in the vessel 311, the power supply is for unit in order to control
Power supply, in order to which handle is connected on loudspeaker assembly 2 by firm, a bottom plate 32 is extended in the upper end of handle 31 around.
As shown in Fig. 4, the loudspeaker assembly 2 is connected to the lower end of handle 31 and loudspeaker assembly 2 runs through
In the outer wall of the handle 31 of Handleset 3.
Include voice processing module, music processing module and output power amplifier mould in addition, in the control circuit board 25
Block, the music processing module include the circuit or dsp chip for eliminating voice, and the voice processing module includes excellent
Change the circuit or dsp chip of voice, the dsp chip can be handle voice and a chips of music simultaneously difference logical
Road.In at the optimization voice circuit or DSP cores, further include the character of frequency response of the with good grounds loud speaker and the sound pick-up and
The circuit or algorithm that prevent from uttering long and high-pitched sounds of design, including shift frequency, phase shift or combinations thereof.
Wherein, the loud speaker 22 is further divided into bass group, middle pitch group and/or high pitch group, i.e., in a manner of groups of
Distribution, it is preferred that the respective axis of loud speaker of above-mentioned groups of bass group, middle pitch group and high pitch group is coincidence, and all
By central pivot point.
Compared with prior art, the present embodiment effectively avoids the stereo set uttered long and high-pitched sounds, by by whole loudspeaker pair
Title formula is distributed on sound cavity shell, and the microphone of microphone assembly is connected to the symmetrical center line of loudspeaker by connecting pole
On, to reduce the problem of uttering long and high-pitched sounds of microphone speaker equipment integrating to the greatest extent.
The above, the only preferred embodiment of the utility model, are not intended to limit the embodiments of the present invention,
Those of ordinary skill in the art's central scope according to the present utility model and spirit can very easily carry out corresponding accommodation
Or modification, therefore the scope of protection of the utility model should be subject to the protection domain required by claims.
Claims (14)
1. a kind of effectively avoiding the stereo set uttered long and high-pitched sounds, which is characterized in that including：Loudspeaker assembly, the loudspeaker assembly packet
Include the loud speaker of at least two rotational symmetry distributions, the axis of the axis of symmetry and loud speaker itself of the rotational symmetry of the loud speaker
It is intersected in a central pivot point jointly, the central pivot point is for connecting microphone assembly.
2. effectively avoiding the stereo set uttered long and high-pitched sounds as described in claim 1, which is characterized in that the loud speaker difference is respective
It is connected on an independent sound chamber, the central pivot point is located at except the sound chamber.
3. effectively avoiding the stereo set uttered long and high-pitched sounds as described in claim 1, which is characterized in that the loud speaker connects jointly
In on a sound chamber, the shell of the sound chamber is additionally provided with a groove by the central pivot point.
4. effectively avoiding the stereo set uttered long and high-pitched sounds as claimed in claim 3, which is characterized in that the groove is through sound
The gap slot of cavity shell, the cavity connection of the lower section of the gap slot.
5. effectively avoiding the stereo set uttered long and high-pitched sounds as claimed in claim 3, which is characterized in that the groove is one by sound chamber
The tubular channel that extends downwardly out of case top.
6. effectively avoiding the stereo set uttered long and high-pitched sounds as claimed in claim 4, which is characterized in that the company below the gap slot
A partition board is additionally provided in cavity body, entire sound chamber is averagely divided into two by the partition board.
7. effectively avoiding the stereo set uttered long and high-pitched sounds as described in claim 1, which is characterized in that further include microphone assembly and control
Circuit board processed, the loudspeaker assembly and microphone assembly are electrically connected to the control circuit board, by microphone assembly into
Amplified by loudspeaker assembly after the Audio Signal Processing entered, the microphone assembly includes sound pick-up, and the sound pick-up connects
It is connected to the central pivot point.
8. effectively avoiding the stereo set uttered long and high-pitched sounds as claimed in claim 7, which is characterized in that be additionally provided with one on the sound pick-up
The end of connecting pole, the connecting pole is connected at the central pivot point, and the central axis of the connecting pole and rotational symmetry
The axis of symmetry overlap.
9. effectively avoiding the stereo set uttered long and high-pitched sounds as claimed in claim 7, which is characterized in that the central shaft of the connecting pole
Line is vertical with the surfaces of revolution of the rotational symmetry of loud speaker.
10. effectively avoiding the stereo set uttered long and high-pitched sounds as described in claim 1 to 9 any one, which is characterized in that further include one
Handle and a power supply, the handle are connected to the loudspeaker assembly.
11. effectively avoiding the stereo set uttered long and high-pitched sounds as claimed in claim 10, which is characterized in that the loudspeaker assembly connects
It is connected to the lower end of handle.
12. effectively avoiding the stereo set uttered long and high-pitched sounds as claimed in claim 10, which is characterized in that the speaker performance ginseng
Number is identical.
13. effectively avoiding the stereo set uttered long and high-pitched sounds as claimed in claim 10, which is characterized in that the loud speaker is divided into low
Sound group, middle pitch group and/or high pitch group.
14. effectively avoiding the stereo set uttered long and high-pitched sounds as claimed in claim 7, which is characterized in that the control circuit board packet
It includes：Voice processing module, music processing module export power amplifier module, and the music processing module includes for eliminating voice
Circuit module or dsp chip, the voice processing module include optimize voice circuit module or dsp chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721726079.1U CN207652628U (en) | 2017-12-12 | 2017-12-12 | It is a kind of effectively to avoid the stereo set uttered long and high-pitched sounds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721726079.1U CN207652628U (en) | 2017-12-12 | 2017-12-12 | It is a kind of effectively to avoid the stereo set uttered long and high-pitched sounds |
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| Publication Number | Publication Date |
|---|---|
| CN207652628U true CN207652628U (en) | 2018-07-24 |
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ID=62880323
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721726079.1U Ceased CN207652628U (en) | 2017-12-12 | 2017-12-12 | It is a kind of effectively to avoid the stereo set uttered long and high-pitched sounds |
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| Country | Link |
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| CN (1) | CN207652628U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107820148A (en) * | 2017-12-12 | 2018-03-20 | 深圳唐恩科技有限公司 | A kind of stereo set for effectively avoiding uttering long and high-pitched sounds |
-
2017
- 2017-12-12 CN CN201721726079.1U patent/CN207652628U/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107820148A (en) * | 2017-12-12 | 2018-03-20 | 深圳唐恩科技有限公司 | A kind of stereo set for effectively avoiding uttering long and high-pitched sounds |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| IW01 | Full invalidation of patent right | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20221130 Decision number of declaring invalidation: 59313 Granted publication date: 20180724 |