CN206963040U - A kind of dynamic auto pressure limit sound equipment of audio - Google Patents
A kind of dynamic auto pressure limit sound equipment of audio Download PDFInfo
- Publication number
- CN206963040U CN206963040U CN201720497662.3U CN201720497662U CN206963040U CN 206963040 U CN206963040 U CN 206963040U CN 201720497662 U CN201720497662 U CN 201720497662U CN 206963040 U CN206963040 U CN 206963040U
- Authority
- CN
- China
- Prior art keywords
- audio
- signal processing
- audio dsp
- processing modules
- loudspeaker
- 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.)
- Active
Links
Landscapes
- Circuit For Audible Band Transducer (AREA)
Abstract
The utility model discloses a kind of dynamic auto pressure limit sound equipment of audio, wherein, including casing of loudspeaker box, circuit board and loudspeaker, and power transformer.It is provided with from dynamic pressure and rations the power supply road on circuit board.From dynamic pressure ration the power supply road include MCU processors, audio DSP signal processing modules, Serial E2PROM memory modules and audio ClassD power amplifier modules, and audio DSP signal processing modules.MCU processors control audio DSP signal processing modules, gather and monitor in real time, by the data feedback monitored in real time to MCU processors, go to control audio DSP signal processing modules by the processing of MCU in house softwares program and calculating again, audio DSP signal processing modules carry out pressure limit processing according to software algorithm in very short time to signal, signal after processing is sent to power amplifier amplification, is finally output to loudspeaker.The utility model has the effect for improving audio and extending audio amplifier service life.
Description
Technical field
It the utility model is related to a kind of dynamic auto pressure limit sound equipment of audio.
Background technology
At present, speaker products on the market are the pressure limit function of not pressing limit function or analog circuit realization mostly, are being listened
Unsweet sound phenomenon occurs in sense once in a while.Therefore easily cause power of loudspeaker overload and the problem of abnormal sound or damage occur, influence sound
The service life of case.
Utility model content
In view of the above problems, the purpose of this utility model is to provide a kind of raising audio and extends audio amplifier service life
The dynamic auto pressure limit sound equipment of audio.
To achieve the above object, a kind of dynamic auto pressure limit sound equipment of audio provided by the utility model, it is characterised in that bag
The circuit board for include casing of loudspeaker box, being provided with casing of loudspeaker box and the loudspeaker being connected with circuit board, and be connected with circuit board
Power transformer；
It is provided with from dynamic pressure and rations the power supply road on described circuit board；
It is described to be rationed the power supply the audio DSP signal transacting moulds that road includes MCU processors, is connected with MCU processors from dynamic pressure
Block, the Serial E being connected with MCU processors2PROM memory modules and the audio Class D power amplifications being connected with MCU processors
Module, and the audio DSP signal processing modules being connected with MCU processors；
Described MCU processors control audio DSP signal processing modules, allow audio DSP signal processing modules to believe output
Number carry out in real time gather and monitor, by the data feedback monitored in real time to MCU processors, then by MCU in house software programs at
Reason and calculating go to control audio DSP signal processing modules, and audio DSP signal processing modules are according to software algorithm in very short time
Signal is carried out to press limit processing, the signal after processing is sent to power amplifier amplification, is finally output to loudspeaker.Thus, from dynamic pressure
Road of rationing the power supply is monitored in real time to the amplitude of audio signal, automated intelligent adjustment pressure limit (reducing output), is ensured in conventional sound
Power amplifier output can all be automatically adjusted to optimum state under the signal input condition of any amplitude and frequency under source, while also thoroughly solve
Determine because Larger Dynamic arrives, power of loudspeaker overloads and abnormal sound or damage occurs, significant increase Consumer's Experience and extends sound
The service life of case.
In some embodiments, audio DSP signal processing modules are ADAU1701 audio DSP Processors.
In some embodiments, the TAS5611 digital-to-analogues that audio DSP signal processing modules include being connected with loudspeaker turn
Change and amplifier.
The beneficial effects of the utility model are with the effect for improving audio and extension audio amplifier service life.At MCU
Device control audio DSP signal processing modules are managed, allow audio DSP signal processing modules to carry out gathering and supervising in real time to output signal
Survey, by the data feedback monitored in real time to MCU processors, then by MCU in house softwares program handle and calculating go control audio
DSP signal processing modules, audio DSP signal processing modules to signal press at limit according to software algorithm in very short time
Reason, the signal after processing are sent to power amplifier amplification, are finally output to loudspeaker, material is thus formed a benign control ring
Road come reach from dynamic pressure limit purpose, from dynamic pressure limit can prevent power amplifier or speaker overload, be finally reached in sense of hearing not by shadow
Under sound, audio amplifier reaches maximum output dynamic, while also ensure that the service life of sound box system.
Brief description of the drawings
Fig. 1 is the utility model internal structure schematic diagram.
Embodiment
Utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of dynamic auto pressure limit sound equipment of audio, including casing of loudspeaker box 1, it is provided with casing of loudspeaker box 1
Circuit board 2 and the loudspeaker 3 being connected with circuit board 2, and in the power transformer being connected with circuit board 2.Set on circuit board 2
Have from dynamic pressure and ration the power supply road.Include MCU processors 4, the audio DSP signal transactings that are connected with MCU processors 4 from dynamic pressure road of rationing the power supply
Module 5, the Serial E being connected with MCU processors 42PROM memory modules 6 and the audio C l ass D being connected with MCU processors 4
Power amplifier module 7, and the audio DSP signal processing modules 5 being connected with MCU processors 4.MCU processors 4 control audio DSP
Signal processing module 5, audio DSP signal processing modules 5 are allowed to carry out gathering and monitoring in real time to output signal, by what is monitored in real time
Data feedback goes to control audio DSP signal processing modules to MCU processors 4, then by the processing of MCU in house softwares program and calculating
5, audio DSP signal processing module 5 carries out pressure limit processing, the letter after processing according to software algorithm in very short time to signal
Power amplifier amplification number is sent to, is finally output to loudspeaker 3.Thus, amplitude progress of the road to audio signal is rationed the power supply in fact from dynamic pressure
When monitor, automated intelligent adjustment pressure limit (reduce output), ensure that the signal of any amplitude and frequency under conventional source of sound inputs
In the case of power amplifier output can all be automatically adjusted to optimum state, while also thoroughly solve because Larger Dynamic arrive, the power of loudspeaker 3
Overload and abnormal sound or damage occur, significant increase Consumer's Experience and the service life for extending audio amplifier.At audio DSP signals
Reason module 5 is ADAU1701 audio DSP Processors.Audio DSP signal processing modules 5 include what is be connected with loudspeaker 3
TAS5611 digital-to-analogue conversions and amplifier.
Using when, MCU processors 4 control audio DSP signal processing modules 5, allow audio DSP signal processing modules 5 to defeated
Go out signal gather and monitor in real time, by the data feedback monitored in real time to MCU processors 4, then by MCU in house softwares
Program processing and calculating go to control audio DSP signal processing modules 5, and audio DSP signal processing modules 5 are according to software algorithm in pole
Signal is carried out in short time to press limit processing, the signal after processing is sent to power amplifier amplification, is finally output to loudspeaker 3, this
Sample is formed a benign control loop to reach the purpose from dynamic pressure limit, and power amplifier or loudspeaker can be prevented from dynamic pressure limit
3 overloads, are finally reached in the case where sense of hearing is unaffected, and audio amplifier reaches maximum output dynamic, while also ensure that sound box system
Service life.
Above-described is only some embodiments of the present utility model.For the person of ordinary skill of the art,
On the premise of not departing from the utility model and creating design, various modifications and improvements can be made, these belong to practical new
The protection domain of type.
Claims (3)
- A kind of 1. dynamic auto pressure limit sound equipment of audio, it is characterised in that the circuit being provided with including casing of loudspeaker box, in casing of loudspeaker box Plate and the loudspeaker being connected with circuit board, and in the power transformer being connected with circuit board；It is provided with from dynamic pressure and rations the power supply road on described circuit board；It is described from dynamic pressure ration the power supply audio DSP signal processing modules that road includes MCU processors, is connected with MCU processors and The Serial E of MCU processors connection2PROM memory modules and the audio Class D power amplifier modules being connected with MCU processors, And the audio DSP signal processing modules being connected with MCU processors；Described MCU processors control audio DSP signal processing modules, allow audio DSP signal processing modules to enter output signal Row in real time collection and monitoring, by the data feedback monitored in real time to MCU processors, then by MCU in house softwares program handle with Calculating go control audio DSP signal processing modules, audio DSP signal processing modules according to software algorithm in very short time to letter Number carry out pressing limit processing, the signal after processing is sent to power amplifier amplification, is finally output to loudspeaker.
- A kind of 2. dynamic auto pressure limit sound equipment of audio according to claim 1, it is characterised in that described audio DSP letters Number processing module is ADAU1701 audio DSP Processors.
- A kind of 3. dynamic auto pressure limit sound equipment of audio according to claim 1, it is characterised in that described audio DSP letters Number processing module includes TAS5611 digital-to-analogue conversions and the amplifier being connected with loudspeaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720497662.3U CN206963040U (en) | 2017-05-05 | 2017-05-05 | A kind of dynamic auto pressure limit sound equipment of audio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720497662.3U CN206963040U (en) | 2017-05-05 | 2017-05-05 | A kind of dynamic auto pressure limit sound equipment of audio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206963040U true CN206963040U (en) | 2018-02-02 |
Family
ID=61375735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720497662.3U Active CN206963040U (en) | 2017-05-05 | 2017-05-05 | A kind of dynamic auto pressure limit sound equipment of audio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206963040U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111739496A (en) * | 2020-06-24 | 2020-10-02 | 腾讯音乐娱乐科技（深圳）有限公司 | Audio processing method, device and storage medium |
-
2017
- 2017-05-05 CN CN201720497662.3U patent/CN206963040U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111739496A (en) * | 2020-06-24 | 2020-10-02 | 腾讯音乐娱乐科技（深圳）有限公司 | Audio processing method, device and storage medium |
| CN111739496B (en) * | 2020-06-24 | 2023-06-23 | 腾讯音乐娱乐科技（深圳）有限公司 | Audio processing method, device and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203643159U (en) | Machine tool bolt looseness detection device | |
| CN204350277U (en) | A kind of indoor active noise reduction equipment of streamlined Wireless Networking | |
| CN203537555U (en) | Audio device | |
| CN206963040U (en) | A kind of dynamic auto pressure limit sound equipment of audio | |
| CN107277683A (en) | A kind of audio amplifier system and method | |
| CN106849781A (en) | A kind of motor drive circuit, method and electronic equipment | |
| CN105611461A (en) | Noise suppression method, apparatus and system for voice application system of front-end device | |
| CN201805492U (en) | A television device | |
| CN203233526U (en) | Digital power amplification system | |
| CN203151703U (en) | Sound pick-up device | |
| CN207337094U (en) | A kind of smart home monitoring device | |
| CN207053728U (en) | A kind of earphone | |
| CN106231521A (en) | Quickly hearing aid fitting device and hearing aid fitting method | |
| CN205726414U (en) | A kind of meeting sound equipment automatic controller | |
| CN206164800U (en) | Novel monitoring headpone | |
| CN206260067U (en) | A kind of Intelligent earplug | |
| CN206023719U (en) | A kind of automatic gain control circuit | |
| CN204810402U (en) | Audio frequency warning camera | |
| CN204929216U (en) | A quick charging and discharging circuit for control of power amplifier silence | |
| CN214099107U (en) | Automatic voice broadcast system of information | |
| CN206353823U (en) | Court's trial recording standby system | |
| CN206353843U (en) | A kind of intelligent sound audio amplifier | |
| CN204231640U (en) | A kind of multistage amplitude limit control system exported for audio frequency | |
| CN205039780U (en) | Take dual power supply's dual track audio power amplifier circuit | |
| CN204465475U (en) | A kind of audio gain control device of environment self-adaption |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |