CN105681938A - High-sound-quality Bluetooth loudspeaker box - Google Patents
High-sound-quality Bluetooth loudspeaker box Download PDFInfo
- Publication number
- CN105681938A CN105681938A CN201610147194.7A CN201610147194A CN105681938A CN 105681938 A CN105681938 A CN 105681938A CN 201610147194 A CN201610147194 A CN 201610147194A CN 105681938 A CN105681938 A CN 105681938A
- Authority
- CN
- China
- Prior art keywords
- module
- dac
- bluetooth
- signal
- branch road
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 8
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000003321 amplification Effects 0.000 abstract 2
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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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
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/04—Structural association of microphone with electric circuitry therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
-
- 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
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
-
- 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
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
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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
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/283—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a high-sound-quality Bluetooth loudspeaker box, which comprises a Bluetooth module and a processor module which are in signal connection, as well as a first branch and a second branch which are in signal connection with the processor module, wherein the first branch comprises a first DAC module, a first power amplification module and a high-frequency loudspeaker module which are sequentially in signal connection, the first DAC module is in signal connection with the processor module, the second branch comprises a second DAC module, a second power amplification module and a bass loudspeaker module which are sequentially in signal connection, and the second DAC module is in signal connection with the processor module. The high-sound-quality Bluetooth loudspeaker box overcomes the defect that sound quality is decreased due to signal loss in the Bluetooth transmission process.
Description
Technical field
The present invention relates to Baffle Box of Bluetooth technical field, particularly relate to a kind of high tone quality Baffle Box of Bluetooth.
Background technology
Bluetooth is a kind of jumbo short-distance wireless communication specification of low cost, the audio amplifier of embedded with bluetooth chip is commonly called Baffle Box of Bluetooth, it connects with bluetooth and replaces the stereo set that tradition wire rod connects, by being connected with bluetooth playback equipments such as mobile phone, panel computer and notebooks, reach conveniently purpose. Since Baffle Box of Bluetooth is released, it is paid attention to by consumer gradually by convenient feature.
But, it is a kind of wireless connections owing to bluetooth connects, it is signal is first compressed be converted to radio signal then occur to receiver, receiver is by changing signal and decoding compression, so, the process of the compression of signal, transmitting, decompression and transcoding all can occur the loss to signal, therefore can cause the loss in tonequality.
Summary of the invention
In view of this, it is an object of the invention to overcome the deficiencies in the prior art, it is provided that the Baffle Box of Bluetooth of a kind of high tone quality.
In order to solve above-mentioned technical problem, the present invention adopts following scheme to realize:
A kind of high tone quality Baffle Box of Bluetooth, the bluetooth module connected including signal and processor module, also include signal is connected respectively with processor module the first branch road and the second branch road, described first branch road includes the first DAC module, the first power amplifier module and the high-frequency horn module that signal connects successively, described first DAC module is connected with processor die block signal, described second branch road includes the second DAC module, the second power amplifier module and the bass horn module that signal connects successively, and described second DAC module is connected with processor die block signal.
Due to transmission signal loss to some extent, all audios play back each through loudspeaker, add the loss of transmission signal, can cause the decline of audio, and in the present invention, it is connected with microprocessor module signal by arranging two branch roads, the microprocessor module feature according to signal, automatically signal is assigned on the first branch road or the second branch road, by the separately transmission of high and low frequency signal, except presenting more three-dimensional sound effect, moreover it is possible to improve the performance of tonequality so that tonequality is purer.
Described first DAC module and the second DAC module are by two DAC compositions in parallel, and one of them DAC is in series with phase inverter.
At the signal that the first branch road and the second branch road transmit, first DAC module (D/A converter module) and the second DAC module (D/A converter module) are divided into two-way, wherein a road is sent directly into DAC(digital to analog converter), another road becomes polarity reversing signal through phase inverter and is re-fed into DAC, then it is mutually mixed from DAC signal out and another DAC signal out, equivalence bit number so can not only be provided, conversion accuracy can also be improved, improve tonequality performance, the high frequency with the first branch road is coordinated to show the low frequency behavior with the second branch road, the shortcoming that can overcome the loss of signal of Bluetooth transmission to a certain extent.
Also including low-tension supply module, described low-tension supply module is individually connected with bluetooth module.
Except bluetooth module, other module provides power supply each through external civil power, and bluetooth module uses low-tension supply module, such as common 5V power supply, interference that extraneous power on moment causes and power supply instability can be avoided to cause that bluetooth module is in unsteady state, and this measure is conducive to stablizing of tonequality.
Described high-frequency horn module includes tweeter, and the vibrating diaphragm cutting plane of described tweeter is wavy shaped configuration, and the indent position of wavy shaped configuration is provided with the ceramic fibre reinforced pipe of hollow ring, is filled with hydrargyrum in described ceramic fibre reinforced pipe.
By the ceramic fibre reinforced pipe arranged, the performance of supper bass in tweeter can be strengthened, in addition, owing to arranging ceramic fibre reinforced pipe at indent position, so that sound can also expand the dispersion angle of sound, the shortcoming overcoming direction propagation narrow range to a certain extent, also by filling hydrargyrum, making tonequality purer, and be avoided that the appearance of noise, representability is higher.
Compared with prior art, there is advantages that Baffle Box of Bluetooth is improved by the present invention, reduce the shortcoming that loss of signal causes tonequality to reduce so that sound is more three-dimensional and plentiful.
Accompanying drawing explanation
Fig. 1 is embodiment 1 structured flowchart;
Fig. 2 is DAC module structured flowchart;
Fig. 3 is vibrating diaphragm sectional structure schematic diagram.
Detailed description of the invention
In order to allow those skilled in the art be more fully understood that technical scheme, below in conjunction with accompanying drawing, the present invention is further elaborated.
Embodiment 1
As shown in Figure 1, a kind of high tone quality Baffle Box of Bluetooth, the bluetooth module connected including signal and processor module, and the first branch road being connected respectively with processor module and the second branch road, described first branch road includes the first DAC module that signal connects successively, first power amplifier module and high-frequency horn module, described first DAC module is connected with processor die block signal, described second branch road includes the second DAC module that signal connects successively, second power amplifier module and Low frequency horn module, described second DAC module is connected with processor die block signal, also include low-tension supply module, described low-tension supply module is individually connected with bluetooth module.
As in figure 2 it is shown, described first DAC module and the second DAC module are by two DAC(digital to analog converters in parallel) form, and one of them DAC is in series with phase inverter 1.
Described high-frequency horn module includes tweeter, as shown in Figure 3, vibrating diaphragm 2 cutting plane of described tweeter is wavy shaped configuration, and the indent position of wavy shaped configuration is provided with the ceramic fibre reinforced pipe 3 of hollow ring, is filled with hydrargyrum in described ceramic fibre reinforced pipe 3.
Claims (4)
1. a high tone quality Baffle Box of Bluetooth, the bluetooth module connected including signal and processor module, it is characterized in that, also include signal is connected respectively with processor module the first branch road and the second branch road, described first branch road includes the first DAC module, the first power amplifier module and the high-frequency horn module that signal connects successively, described first DAC module is connected with processor die block signal, described second branch road includes the second DAC module, the second power amplifier module and the bass horn module that signal connects successively, and described second DAC module is connected with processor die block signal.
2. high tone quality Baffle Box of Bluetooth according to claim 1, it is characterised in that described first DAC module and the second DAC module are by two DAC compositions in parallel, and one of them DAC is in series with phase inverter.
3. high tone quality Baffle Box of Bluetooth according to claim 1, it is characterised in that also including low-tension supply module, described low-tension supply module is individually connected with bluetooth module.
4. high tone quality Baffle Box of Bluetooth according to claim 1, it is characterized in that, described high-frequency horn module includes tweeter, the vibrating diaphragm cutting plane of described tweeter is wavy shaped configuration, and the indent position of wavy shaped configuration is provided with the ceramic fibre reinforced pipe of hollow ring, in described ceramic fibre reinforced pipe, it is filled with hydrargyrum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610147194.7A CN105681938A (en) | 2016-03-16 | 2016-03-16 | High-sound-quality Bluetooth loudspeaker box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610147194.7A CN105681938A (en) | 2016-03-16 | 2016-03-16 | High-sound-quality Bluetooth loudspeaker box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105681938A true CN105681938A (en) | 2016-06-15 |
Family
ID=56310552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610147194.7A Pending CN105681938A (en) | 2016-03-16 | 2016-03-16 | High-sound-quality Bluetooth loudspeaker box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105681938A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6150970A (en) * | 1999-03-01 | 2000-11-21 | Sony Corporation | Method and system for digital to analog conversion |
| CN101014209A (en) * | 2007-01-19 | 2007-08-08 | 电子科技大学 | Full band natural sound effect audio directional loudspeaker |
| CN205610856U (en) * | 2016-03-16 | 2016-09-28 | 广州坚立音响器材有限公司 | High tone quality bluetooth speaker |
-
2016
- 2016-03-16 CN CN201610147194.7A patent/CN105681938A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6150970A (en) * | 1999-03-01 | 2000-11-21 | Sony Corporation | Method and system for digital to analog conversion |
| CN101014209A (en) * | 2007-01-19 | 2007-08-08 | 电子科技大学 | Full band natural sound effect audio directional loudspeaker |
| CN205610856U (en) * | 2016-03-16 | 2016-09-28 | 广州坚立音响器材有限公司 | High tone quality bluetooth speaker |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160615 |