CN107979786A - A kind of sound equipment for supporting more USB flash disks and the broadcasting of more bluetooths - Google Patents
A kind of sound equipment for supporting more USB flash disks and the broadcasting of more bluetooths Download PDFInfo
- Publication number
- CN107979786A CN107979786A CN201711071707.1A CN201711071707A CN107979786A CN 107979786 A CN107979786 A CN 107979786A CN 201711071707 A CN201711071707 A CN 201711071707A CN 107979786 A CN107979786 A CN 107979786A
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- module
- controller module
- resistance
- sound equipment
- operational amplifier
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- 230000000694 effects Effects 0.000 claims abstract description 21
- 230000003321 amplification Effects 0.000 claims description 10
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 230000005236 sound signal Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2420/00—Details of connection covered by H04R, not provided for in its groups
- H04R2420/03—Connection circuits to selectively connect loudspeakers or headphones to amplifiers
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention discloses a kind of sound equipment for supporting more USB flash disks and the broadcasting of more bluetooths, it includes main controller module, the main controller module is connected with USB module, bluetooth module, master volume switch control module and display screen, one or more submaster controller modules, the submaster controller module is connected by I2C buses with the main controller module, and submaster controller module is connected with USB module, bluetooth module and secondary volume switch control module；The sound equipment has further included sequentially connected Dolby circuit, audio amplifier circuit and loudspeaker, and the audio output port of main controller module and the submaster controller module is connected with the Dolby circuit.Sound equipment provided by the invention, it can support the music of multiple USB flash disks or multiple bluetooth connections at the same time, can play out diversified music effect, and then realize that DJ beats the music effect of disc player.
Description
Technical field
The present invention relates to stereo set field, more particularly to a kind of sound equipment for supporting more USB flash disks and the broadcasting of more bluetooths.
Background technology
Sound equipment is a kind of device applied on electronic equipment, is a kind of electronic equipment for being used to play sound, it is at me
Life in apply than wide, be mainly used for playing various songs.At present, the existing sound equipment of in the market all cannot
The music in the bluetooth and USB flash disk of more than 2 (containing 2) is played at the same time, its function is more single, it is difficult to plays out preferable music
Effect.
The content of the invention
For overcome the deficiencies in the prior art and there are the problem of, the present invention, which provides, a kind of supports more USB flash disks and more bluetooths to play
Sound equipment, which can play the music on multiple USB flash disks at the same time, or can play at the same time on the electronic equipment by bluetooth connection
Music, so as to play out diversified music effect, realizes that DJ beats the music effect of disc player.
The present invention is achieved by the following technical solutions：A kind of sound equipment for supporting more USB flash disks and the broadcasting of more bluetooths, it includes
Main controller module, the main controller module are connected with USB module, bluetooth module, master volume switch control module and display
Screen, one or more submaster controller modules, the submaster controller module are connected by I2C buses with the main controller module,
And submaster controller module is connected with USB module, bluetooth module and secondary volume switch control module；The sound equipment further included according to
Dolby circuit, audio amplifier circuit and the loudspeaker of secondary connection, the audio of main controller module and the submaster controller module
Delivery outlet is connected with the Dolby circuit.
Preferably, the sound equipment has further included sequentially connected microphone input, microphone prime amplification module and microphone
Audio effect processing module.
Further, the main controller module is also associated with TF card module.
Further, the sound equipment further include be all connected with the main controller module and submaster controller module it is infrared
Receiving module.
It is preferred that the model AC4601 of the main controller module and the main control chip of submaster controller module；The words
The model CD2399 or PT2399 of the main control chip of cylinder audio effect processing module.
Sound equipment provided by the invention, it can support the music of multiple USB flash disks or multiple bluetooth connections at the same time, and effectively solve
The problem of audio of having determined interferes with each other, and the volume of the audio output of main controller module and each submaster controller module is controlled to be independent
System, so as to play out diversified music effect, and then realizes that DJ beats the music effect of disc player；In addition, master controller mould
Connected between block and each submaster controller module by I2C buses, can also solve the problems, such as shared display screen.
Brief description of the drawings
Fig. 1 is the circuit structure schematic block diagram of sound equipment described in the embodiment of the present invention.
Fig. 2 is the physical circuit figure of Dolby circuit described in the embodiment of the present invention.
Fig. 3 is the physical circuit figure of the main control chip in main controller module described in the embodiment of the present invention.
Fig. 4 is the physical circuit figure of the main control chip in the block of submaster controller mould described in the embodiment of the present invention.
Fig. 5 is microphone input described in the embodiment of the present invention, microphone prime amplification module and microphone audio effect processing mould
The particular circuit configurations figure of block.
Fig. 6 is the particular circuit configurations figure of audio amplifier circuit described in the embodiment of the present invention.
Embodiment
For the ease of the understanding of those skilled in the art, the present invention is made below in conjunction with the drawings and specific embodiments further
It is described in detail.
As shown in Figure 1, a kind of sound equipment for supporting more USB flash disks and the broadcasting of more bluetooths, it includes main controller module, the master control
Device module processed is connected with USB module, bluetooth module, master volume switch control module and display screen, one or more sub-control
Device module, the submaster controller module is connected by I2C buses with the main controller module, and submaster controller module is connected with
USB module, bluetooth module and secondary volume switch control module；The sound equipment has further included sequentially connected Dolby circuit, sound
Frequency amplifying circuit and loudspeaker, the audio output port of main controller module and the submaster controller module are electric with the noise reduction
Road connects.In the present embodiment, the sound equipment is by setting a main controller module and one or more submaster controller moulds, main control
Connected between device module and submaster controller mould by I2C buses, and the audio output port of main controller module and submaster controller mould
By carrying out audio amplification after Dolby circuit again, finally just it is output in loudspeaker, therefore can effectively solves audio and interfere with each other
The problem of；Simultaneously because independent volume control switch control module is respectively adopted in main controller module and submaster controller mould, because
This is with independent volume control effect, since main controller module and submaster controller module at least set a USB module and one
Bluetooth module, so that the sound equipment can play out diversified music effect, and then realizes that DJ beats the music effect of disc player
Fruit.
It should be noted that in Fig. 1, it only depicts one of submaster controller module, and and submaster controller
USB module, bluetooth module and the secondary volume switch control module of module connection, can select pair as needed in practical applications
The quantity of controller module (including connected SB modules, bluetooth module and secondary volume switch control module).
In a wherein preferred embodiment, the Dolby circuit includes the first Dolby circuit and the second Dolby circuit,
The audio amplifier circuit includes the first audio amplifier circuit and the second audio amplifier circuit；
As shown in Figure 2, first Dolby circuit includes the first operational amplifier, some resistance and some capacitances, institute
The inverting input for stating the first operational amplifier passes sequentially through a resistance R7, capacitance C17 and resistance RFB2 and master controller mould
The digital-to-analogue conversion port connection of block, and the inverting input of the first operational amplifier also passes through resistance R15 and first computing
The output terminal connection of amplifier, the output terminal of first operational amplifier pass sequentially through resistance R15, resistance R19, capacitance C30
And the connection of another digital-to-analogue conversion port of resistance RFB1 and main controller module, and the output terminal of first operational amplifier
Also it is connected by a capacitance C19 with the first audio amplifier circuit, the in-phase input end of first operational amplifier passes through an electricity
Resistance R21 is connected with voltage source VCC；
Second Dolby circuit includes the second operational amplifier, some resistance and some capacitances, and second computing is put
The inverting input of big device passes sequentially through the digital-to-analogue conversion of a resistance R8, capacitance C29 and resistance RFB4 and submaster controller module
Port connects, and the inverting input of the second operational amplifier also passes through the output of resistance R16 and second operational amplifier
End connection, the output terminal of second operational amplifier pass sequentially through resistance R16, resistance R20, capacitance C31 and resistance RFB3
It is connected with another digital-to-analogue conversion port of submaster controller module, and the output terminal of second operational amplifier also passes through a capacitance
C21 is connected with the second audio amplifier circuit, and the in-phase input end of second operational amplifier passes through a resistance R22 and voltage source
VCC connections.
In the present embodiment, master/slave volume switch control when adjusting audio signal directly by being connected with master/slave controller module
Device module processed is adjusted, and after master/slave controller module is handled again by Dolby circuit after carry out audio amplification again
Processing so that adjust audio signal without being adjusted by potentiometer, be both effectively simplified circuit, prevent to be contacted by potentiometer
Bad and introducing noise, and the interference signal of potentiometer introducing is effectively prevent, and main controller module and submaster controller mould
Block by being connected again with audio amplifier circuit after the first Dolby circuit and the second Dolby circuit, is finally just output to loudspeaker respectively
In, therefore can also effectively solve the problems, such as that audio interferes with each other.
As preferred embodiment, the sound equipment has further included sequentially connected microphone input, microphone prime amplification mould
Block and microphone audio effect processing module.By set these function modules (microphone input, microphone prime amplification module and
Microphone audio effect processing module) so that the sound equipment can effectively receive and export the voice signal of microphone.
In a wherein preferred embodiment, the main controller module is also associated with TF card module, passes through the TF card
Module so that the sound equipment can easily store music file and play the music file stored in TF card.In addition, the sound equipment
Further preferably include the infrared receiving module being all connected with the main controller module and submaster controller module, infrared connect by this
Receive module so that the sound equipment can easily receive the control signal of IR remote controller, so as to facilitate user a long way off by red
Outer remote controler is controlled the sound equipment.
In the present embodiment, the model AC4601 of the main control chip of main controller module and the submaster controller module, its
The physical circuit figure of main control chip in middle main controller module as shown in Figure 3, and submaster controller mould main control chip in the block
Physical circuit figure (include bluetooth module and USB module in Fig. 4) as shown in Figure 4.
In a wherein preferred embodiment, the microphone input, microphone prime amplification module and microphone audio
The particular circuit configurations of processing module (wherein microphone input, microphone prime amplification module and microphone audio as shown in Figure 5
The module region of processing module in figure 5 is divided into only rough division, and non-critical accurate division).This implementation
In example, the model CD2399 or PT2399 of the main control chip of the microphone audio effect processing module.Certainly, also may be used in practical application
Select microphone input, microphone prime amplification module and microphone audio effect processing module of the prior art.
In a wherein preferred embodiment, the main control chip of the audio amplifier circuit is preferably CSC3130, it has
Body circuit structure is as shown in Figure 6.Certainly, audio amplifier circuit of the prior art also can be selected in practical application.
Compared with prior art, sound equipment provided in an embodiment of the present invention has the advantages that：It can support more at the same time
A USB flash disk or the music of multiple bluetooth connections, and solve the problems, such as that audio interferes with each other, and main controller module and
The volume of the audio output of each submaster controller module is independent control, so as to play out diversified music effect, and then
Realize that DJ beats the music effect of disc player；In addition, connected between main controller module and each submaster controller module by I2C buses,
Solve the problems, such as shared display screen.
Above-described embodiment is the preferable implementation of the present invention, is not limited to the present invention, is not departing from this hair
It is any obviously to replace within protection scope of the present invention on the premise of bright inventive concept.
Claims (7)
- A kind of 1. sound equipment for supporting more USB flash disks and the broadcasting of more bluetooths, it is characterised in that：Including main controller module, the master controller Module is connected with USB module, bluetooth module, master volume switch control module and display screen, one or more submaster controller moulds Block, the submaster controller module is connected by I2C buses with the main controller module, and submaster controller module is connected with USB Module, bluetooth module and secondary volume switch control module；The sound equipment has further included sequentially connected Dolby circuit, audio amplifier circuit and loudspeaker, the master controller mould Block and the audio output port of submaster controller module are connected with the Dolby circuit.
- 2. sound equipment according to claim 1, it is characterised in that：The sound equipment has further included sequentially connected microphone input End, microphone prime amplification module and microphone audio effect processing module.
- 3. sound equipment according to claim 2, it is characterised in that：The main controller module is also associated with TF card module.
- 4. the sound equipment according to any one in claims 1 to 3, it is characterised in that：The sound equipment further included with it is described The infrared receiving module that main controller module and submaster controller module are all connected with.
- 5. sound equipment according to claim 4, it is characterised in that：The master control of main controller module and the submaster controller module The model AC4601 of chip.
- 6. sound equipment according to claim 5, it is characterised in that：The model of the main control chip of the microphone audio effect processing module For CD2399 or PT2399.
- 7. sound equipment according to claim 1, it is characterised in that：The Dolby circuit includes the first Dolby circuit and the second drop Noise cancellation circuit, the audio amplifier circuit include the first audio amplifier circuit and the second audio amplifier circuit；First Dolby circuit includes the first operational amplifier, some resistance and some capacitances, first operational amplifier Inverting input pass sequentially through the digital-to-analogue conversion port of a resistance R7, capacitance C17 and resistance RFB2 and main controller module Connection, and the inverting input of the first operational amplifier is also connected by the output terminal of resistance R15 and first operational amplifier Connect, the output terminal of first operational amplifier passes sequentially through resistance R15, resistance R19, capacitance C30 and resistance RFB1 and master Another digital-to-analogue conversion port connection of controller module, and the output terminal of first operational amplifier also passes through a capacitance C19 It is connected with the first audio amplifier circuit, the in-phase input end of first operational amplifier passes through a resistance R21 and voltage source VCC Connection；Second Dolby circuit includes the second operational amplifier, some resistance and some capacitances, second operational amplifier Inverting input pass sequentially through the digital-to-analogue conversion port of a resistance R8, capacitance C29 and resistance RFB4 and submaster controller module Connection, and the inverting input of the second operational amplifier is also connected by the output terminal of resistance R16 and second operational amplifier Connect, the output terminal of second operational amplifier passes sequentially through resistance R16, resistance R20, capacitance C31 and resistance RFB3 and pair Another digital-to-analogue conversion port connection of controller module, and the output terminal of second operational amplifier also passes through a capacitance C21 It is connected with the second audio amplifier circuit, the in-phase input end of second operational amplifier passes through a resistance R22 and voltage source VCC Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711071707.1A CN107979786B (en) | 2017-11-03 | 2017-11-03 | Support stereo set of many USB flash discs and many bluetooth broadcast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711071707.1A CN107979786B (en) | 2017-11-03 | 2017-11-03 | Support stereo set of many USB flash discs and many bluetooth broadcast |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107979786A true CN107979786A (en) | 2018-05-01 |
| CN107979786B CN107979786B (en) | 2024-08-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711071707.1A Active CN107979786B (en) | 2017-11-03 | 2017-11-03 | Support stereo set of many USB flash discs and many bluetooth broadcast |
Country Status (1)
| Country | Link |
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| CN (1) | CN107979786B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113329284A (en) * | 2021-06-22 | 2021-08-31 | 王守长 | Sound equipment |
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| CN113329284A (en) * | 2021-06-22 | 2021-08-31 | 王守长 | Sound equipment |
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| Publication number | Publication date |
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| CN107979786B (en) | 2024-08-02 |
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