CN206332830U - Audio power amplifier device - Google Patents
Audio power amplifier device Download PDFInfo
- Publication number
- CN206332830U CN206332830U CN201621159698.2U CN201621159698U CN206332830U CN 206332830 U CN206332830 U CN 206332830U CN 201621159698 U CN201621159698 U CN 201621159698U CN 206332830 U CN206332830 U CN 206332830U
- Authority
- CN
- China
- Prior art keywords
- audio
- power amplifier
- module
- processing modules
- dsp
- 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
Abstract
The utility model provides a kind of audio power amplifier device, including power amplifier module, DSP audio processing modules, touch screen control module and audio transmission interfaces module, DSP audio processing modules respectively with the power amplifier module, the touch screen control module and audio transmission interfaces module connection, power amplifier module is used to carry out power amplifier processing to input signal, DPS audio processing modules are used to carry out data signal audio processing to signal, export the voice data of high-quality, touch screen control module is instructed to outside touch screen display device (LED display) for output control, audio transmission interfaces module provides abundant with external equipment connecting interface, it is convenient to carry out data interaction with external equipment, it is also convenient for user whole audio power amplifier device is operated and used, operation readiness is brought to user.
Description
Technical field
The utility model is related to audio signal processing technique field, more particularly to audio power amplifier device.
Background technology
The complete entitled audio-frequency power amplifier of audio frequency power amplifier, is to be used to promote loudspeaker sounding, so as to reappear the power amplifier of sound
It will be used in device, the electronic product of most sounding.
Traditional audio power amplifier device is only capable of realizing the enlarging function of sound, is needed when realizing other functions by a large amount of
External equipment, such as when needing to constitute professional cinema system, it needs to connect such as control, display, polytype port
Device, so can not bring operation readiness to user.
Utility model content
Based on this, it is necessary to for conventional audio power amplification device unitary function, it is impossible to bring asking for operation readiness to user
Topic brings operation readiness there is provided a kind of audio power amplifier device vdiverse in function to user.
A kind of audio power amplifier device, including power amplifier module, DSP (Digital Signal Processing, data signal
Processing) audio processing modules, touch screen control module and audio transmission interfaces module；
DSP audio processing modules are connected with power amplifier module, touch screen control module and audio transmission interfaces module respectively.
The utility model audio power amplifier device, including power amplifier module, DSP audio processing modules, touch screen control module with
And audio transmission interfaces module, DSP audio processing modules connect with power amplifier module, touch screen control module and audio transmission respectively
Mouth mold block is connected, and power amplifier module is used to carry out input signal power amplifier processing, and DPS audio processing modules are used to enter line number to signal
Word signal audio frequency process, exports the voice data of high-quality, and touch screen control module instructs aobvious to outside touch screen for output control
Show equipment (LED display), audio transmission interfaces module provides abundant with external equipment connecting interface, convenient and external equipment
Data interaction is carried out, user is also convenient for and whole audio power amplifier device is operated and used, operation readiness is brought to user.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model audio power amplifier device one embodiment；
Fig. 2 is that the structure of DSP audio processing modules 200 in the one of embodiment of the utility model audio power amplifier device is shown
It is intended to；
Fig. 3 is the structural representation of second embodiment of the utility model audio power amplifier device.
Embodiment
As shown in figure 1, a kind of audio power amplifier device, including power amplifier module 100, DSP audio processing modules 200, touch-screen
Control module 300 and audio transmission interfaces module 400, DSP audio processing modules 200 respectively with power amplifier module 100, touch-screen
Control module 300 and audio transmission interfaces module 400 are connected.
Power amplifier module 100 is used to carry out power amplifier processing to signal, it is ensured that the signal of output disclosure satisfy that user's request (application
Scene demand).Specifically, power amplifier module 100 can include polytype power amplifier unit, and every kind of power amplifier unit provides different
High-power output selection so that whole power amplifier module 100 provides a variety of high-power output power amplifiers selections, for example, can provide one
The scheme of kind is Pascal SPRO2D class power amplifiers：The Ω of 4 Ω or 4x250W@of 4x500W@8；Another scheme is ICEPOWER D class work(
Put：4x 700W@4Ω.For further, it can also include that there is active PFC (Power in power amplifier module 100
Factor Correction, PFC) with the independent switch power supply of automatic voltage sensing function and overcurrent, mistake/
The circuit protection unit of under-voltage and high temperature protection, two independent Switching Power Supplies and list can be matched in each power amplifier unit
Individual circuit protection unit, the independent switch power supply with active PFC Yu automatic voltage sensing function, can effectively improve power amplifier
The conversion efficiency of unit, such as D classes output stage conversion efficiency are up to 90% (fully loaded), and circuit protection unit can give whole circuit
A full set of circuit protection function is provided, can specifically be provided including overcurrent, mistake/under-voltage, output direct current and high temperature protection.
DSP audio processing modules 200 are used to carry out data signal audio processing to signal, export the voice data of high-quality.
Specifically, DSP audio processing modules 200 can enter four for four and go out DSP audio processing modules 200, in practical application DSP audios
The core processing part of processing module 200 is DSP Processor, can use the SAM5000 series DSP chip branch of DREAM companies
Hold integrated 32k parameters RAM and 16k number on 56bit MAC operations, 48bit double-precision operations, core frequency 196.6MHz, chip
According to RAM RAM32k*24, there is splendid low level signal performance, dynamic processor uses advanced multibreak algorithm.In TDM
Under (Testing Data Management/Technical Data Management, time division multiplexing) pattern, possess
32 passage numeral inputs and output and stereo S/PDIF (Sony/Philips Digital Interface Format) inputs
And output, outside can (Serial Peripheral interface, serial peripheral equipment connects by a four-wire type SPI
Mouthful) port controls it and parameter configuration, online programming emulation can also be carried out by this port, be entered using graphical tool
Row exploitation and programming.The analogue audio frequency and DAB conversion portion of DSP audio processing modules 200 are using AKM companies
AK4620EF audio conversion chips, the input of simulation fully differential and output, signal to noise ratio 115dB.The number of DSP audio processing modules 200
The conversion of word audio format supports 96KHz samplings using AKM companies AKM4122 highests, and supports that sampling frequency is changed.DSP audios
The Micro-processor MCV of processing module 200 uses the STM32F107VCT6 of ST companies.
For further, as shown in Fig. 2 DSP audio processing modules 200 include 4 transmission links, single transmission link
Including the audio signal source selector being sequentially connected in series, Noise gate, input gain, input time delay, input phase, 12 parametric filterings
Device, input RMS (RMSRate-Monotonic Scheduling, RM scheduling) compressor, input silence switch, route
Blender, high-pass and low-pass filter, 4 sections of parameter filters, output delay, output phase, output gain, limiter and output are quiet
Sound is switched, and the high-pass and low-pass filter built in 4 transmission links is connected with each other.Enter four four to go out in DSP audio processing modules 200 to adopt
Enter 4 with perfect 4 and go out reverberation matrix power amplifier, it is ensured that input energy is mixed with any proportioning with any output channel.It is each logical
Road also possess noise gate function, Parametric equalizer wave filter, gain control, high/low bandpass filter, RMS pressure limit and it is adjustable
Delay.Operationally, audio signal source is selected：Simulation, numeral and tri- kinds of audio signals of DANTE are provided each input channel
Source；Noise gate：Two kinds of noise generators of white noise and pink noise are provided to each input channel；Input-gain control circuit：
Input channel level can be set to each input channel, scope is from -12dB to+12dB；Input time delay controls circuit：To each defeated
Enter the settable delay time of passage from 000.0000mS to 500.9984mS；Input phase controls circuit：It is logical to each input
Road may be configured as positive " Normal " and reversely " Invert " state；12 sections of parameter filters：To each input channel, have respectively
12 sections of parameter filters can be selected, each equalization parameter wave filter can select BELL, avenge not, high pass, low pass, band logical, fall into
Ripple and all-pass filter.Input RMS compressors：To each input channel, RMS pressure limits open control threshold range：- 16dBu to+
14dBu；RMS pressure limit flex points：0%~100%；RMS opens the control time：5ms~200ms；Input silence switch：It is logical to each input
Road, may be selected input signal " opening " or " closing "；It route blender：The signal of any input channel can be led to four inputs
Road；High/low bandpass filter：To each output channel, IIR (Infinite Impulse Response, unlimited pulse can be carried out
Response) and FIR (Finite Impulse Response, finite impulse response (FIR)) select to carry out high/low bandpass filter setting；4
Section parameter filter：To each output channel, there are 4 sections of parameter filters to select respectively, each equalization parameter wave filter can
With select BELL, avenge not, high pass, low pass, band logical, trap and all-pass filter.Export delay controller：To each output channel
Settable delay time is from 000.0000mS to 340.9984mS；Output phase controller：Each output channel may be configured as
Positive " Normal " and reversely " Invert " state；Output gain controller：Each output channel can be set output channel electricity
Flat, scope is from -12dB to+12dB；Limiter：Each output channel can be set the pressure limitation of output channel, pressure limit limitation
Open control threshold range：- 16dBu arrives+14dBu.Pressure limit limitation release time scope：0.1sec-5sec, pressure limit opens control time model
Enclose：1ms-900ms；Output mute is switched：To each output channel, output signal " opening " or " closing " may be selected.
Touch screen control module 300 is used to control exterior display screen, such as external LED screen, touch screen control module 300
Using the STM32F103VET6 Micro-processor MCVs of ST companies, exterior display screen can from 4.3 inches, 480X270 dot matrix,
TFT-LCD, 8led B/L white backlights, the LCDs of capacitance touching control panel.
Audio transmission interfaces module 400 is used to provide abundant coffret, is easy to interact with external equipment progress equipment,
Operation readiness for example can be brought to user in order to be connected or disconnected from (plug can be achieved) with external equipment.It is specific next
Say, audio transmission interfaces module 400 includes network audio transport module (Dante modules) and Digital Audio Input Modules, numeral
Audio Input Modules can be AES3 Digital Audio Input Modules.In actual applications, network audio transport module is one special
Door is applied to the ready-made solution of high performance digital audio network equipment.Based on Dante UltimoTM single-chip microcomputers, support
The two way audio passage of up to 4 low latencies, sample frequency is up to 96kHz.Network audio input/output module has two versions
This：1st, single port Ethernet：The Dante Networking Solutions ＆ provisioneds of high performance-price ratio, it is adaptable to 100Mbps ethernet port；2nd, twoport
Ethernet：Equipped with the ethernet port that two speed are 1Gbps.The audio frequency apparatus of daisy chain connected mode is supported, while can
Audio system to live performance keeps low latency.There is a whole set of high tone quality sample frequency on the network audio transport module
Converter, so that user can run the audio system connected under different sample frequencys.In addition, it is also equipped with one
Superior in quality low-jitter clock occurs circuit to provide a sampling precisely synchronously to by the good equipment of network connection, uses
Standard I2S interfaces, user can easily connect the network audio input/output module to DSP audios slave system the inside.It is non-must
Want, network audio transport module includes the network audio transport module and 96 KHzs of 48 KHz audio sampling frequencies
The network audio transport module of audio sampling frequency, i.e., network audio transport module can support 48 KHz sounds simultaneously herein
Frequency sampling frequency and 96 KHz audio sampling frequencies, to meet user's different demands, bring convenient to user's operation.
More particularly, in actual applications, network audio transport module can use and be specifically applied to high performance number
The ready-made solution of the word tone frequency network equipment, specifically includes DUSE-4 and DUDE-4 Dante Ultimo plates.Ultimo monolithics
Machine, it supports the two way audio passage of up to 4 low latencies, and sample frequency is up to 96kHz.DUSE-4 and DUDE-4 have difference
Ethernet Configuration, to realize different functions：DUSE-4 is furnished with single port Ethernet (Single Ethernet), and it is high property
Valency than Dante Networking Solutions ＆ provisioneds, it is adaptable to 100Mbps Ethernet DUSE-4 ports；DUDE-4 is furnished with twoport Ethernet
(Dual Ethernet) --- the ethernet port that two speed are 1Gbps.The audio frequency apparatus of daisy chain connected mode is supported,
Low latency can be kept to the audio system of live performance simultaneously.DUSE-4 and DUDE-4 have a whole set of high tone quality sample frequency
Converter so that user can run the audio system connected under different sample frequencys.In addition, it is also equipped with one
Individual superior in quality low-jitter clock occurs circuit (Low-Jitter Clock Generation Circuit) and passes through net to give
It is precisely synchronous that the equipment that network is connected provides a sampling.Using standard I2S interfaces, user can easily connect DUSE-4 and
Inside DUDE-4 to DSP audios slave system.
As shown in figure 3, in wherein one embodiment, audio power amplifier device also includes analog-to-digital conversion module 500 and digital-to-analogue
Modular converter 600, analog-to-digital conversion module 500 is connected with DSP audio processing modules 200, and DSP audio processing modules 200 pass through number
Mould modular converter 600 is connected with power amplifier module 100.
In the audio signal of input, simulated audio signal is inputted to DSP audio processing modules by analog-to-digital conversion module
Audio signal that 200, DSP 200 pairs of audio processing modules are received (including simulated audio signal, digital audio and video signals and net
Network audio signal) audio frequency process is carried out, the data signal after output processing, the data signal after processing passes through D/A converter module
600 enter output after power amplifier module 100 amplifies.
In wherein one embodiment, audio power amplifier device also includes cabinet, power amplifier module 100, DSP audio processing modules
200th, touch screen control module 300 and audio transmission interfaces module 400 are built in cabinet respectively.
Cabinet can protect its built-in internal device, it is to avoid it is by external force by damage.It is non-essential, cabinet
2U power amplifier boxes can be selected.For further, each device layout can be in the following way：Power amplifier mould in the chassis
Block 100 is arranged at the maximum face (A faces) of cabinet area, and DSP audio processing modules 200 set identical with power amplifier module 100
On one face (A faces), touch screen control module 300 is arranged at (B on the first adjacent surface with face residing for power amplifier module 100 (A faces)
Face), audio transmission interfaces module 400 is arranged on second adjacent surface in face residing for power amplifier module 100 (A faces) (C faces).
Embodiment described above only expresses several embodiments of the present utility model, and it describes more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that for the common skill of this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
Protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of audio power amplifier device, it is characterised in that including power amplifier module, DSP audio processing modules, touch screen control module
And audio transmission interfaces module；
The DSP audio processing modules respectively with the power amplifier module, the touch screen control module and the audio transmission
Interface module is connected.
2. audio power amplifier device according to claim 1, it is characterised in that the power amplifier module include power amplifier unit and
Independent switch power supply with active PFC Yu automatic voltage sensing function, the power amplifier unit and the independent switch power supply
Connection, the power amplifier unit is connected with the DSP audio processing modules.
3. audio power amplifier device according to claim 2, it is characterised in that the power amplifier unit includes Pascal SPRO2
D classes power amplifier or ICEPOWER D class power amplifiers.
4. audio power amplifier device according to claim 2, it is characterised in that the power amplifier module also include overcurrent, mistake/
The circuit protection unit of under-voltage and high temperature protection, the circuit protection unit is connected with the power amplifier unit.
5. audio power amplifier device according to claim 1, it is characterised in that the DSP audio processing modules enter including four
Four go out DSP audio processing modules.
6. audio power amplifier device according to claim 1, it is characterised in that the DSP audio processing modules include 4 biographies
Transmission link, the single transmission link prolongs including the audio signal source selector being sequentially connected in series, Noise gate, input gain, input
When, input phase, 12 parameter filters, input RMS compressors, input silence switch, route blender, high-pass and low-pass filter, 4
Section parameter filter, output delay, output phase, output gain, limiter and output mute switch, 4 chains
The high-pass and low-pass filter of path built-in is connected with each other.
7. audio power amplifier device according to claim 1, it is characterised in that the audio transmission interfaces module includes network
Audio transmission module.
8. audio power amplifier device according to claim 7, it is characterised in that the network audio transport module includes 48,000
The network audio transport module and the network audio transport module of 96 KHz audio sampling frequencies of hertz audio sampling frequency.
9. audio power amplifier device according to claim 1, it is characterised in that also including analog-to-digital conversion module and digital-to-analogue conversion
Module, the analog-to-digital conversion module is connected with the DSP audio processing modules, and the DSP audio processing modules pass through the number
Mould modular converter is connected with the power amplifier module.
10. audio power amplifier device according to claim 1, it is characterised in that also including cabinet, the power amplifier module, institute
State DSP audio processing modules, the touch screen control module and the audio transmission interfaces module and be built in the machine respectively
Case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621159698.2U CN206332830U (en) | 2016-11-01 | 2016-11-01 | Audio power amplifier device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621159698.2U CN206332830U (en) | 2016-11-01 | 2016-11-01 | Audio power amplifier device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206332830U true CN206332830U (en) | 2017-07-14 |
Family
ID=59287329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621159698.2U Active CN206332830U (en) | 2016-11-01 | 2016-11-01 | Audio power amplifier device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206332830U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107623962A (en) * | 2017-08-25 | 2018-01-23 | 广州飞达音响股份有限公司 | A kind of system and method that audio compression Limiting effect is indicated using LED |
| CN110944267A (en) * | 2019-11-22 | 2020-03-31 | 广东联晟通信科技有限公司 | Based on DSP power amplifier intelligence switch auto-change over device |
-
2016
- 2016-11-01 CN CN201621159698.2U patent/CN206332830U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107623962A (en) * | 2017-08-25 | 2018-01-23 | 广州飞达音响股份有限公司 | A kind of system and method that audio compression Limiting effect is indicated using LED |
| CN110944267A (en) * | 2019-11-22 | 2020-03-31 | 广东联晟通信科技有限公司 | Based on DSP power amplifier intelligence switch auto-change over device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106412765B (en) | Audio power amplifier device | |
| CN107103911A (en) | Voice signals enhancement system based on rectangular microphone array | |
| CN206332830U (en) | Audio power amplifier device | |
| CN207491186U (en) | A kind of backup switching audio system | |
| CN206061111U (en) | A kind of multimode audio equipment | |
| CN206759672U (en) | A kind of microphone | |
| CN212969576U (en) | Digital power amplifier system based on PurePath intelligent loudspeaker compensation | |
| CN105389156B (en) | A kind of method and system reducing voice input to output delay based on DMA technology | |
| CN206024079U (en) | Four enter eight goes out FIR sound box processors | |
| CN204316722U (en) | A kind of two enter six goes out real time spectral analysis sound box processor | |
| CN207399517U (en) | The expansible digital audio processing device of passage and voice-grade channel expansion system | |
| CN206024078U (en) | Four enter four goes out FIR sound box processors | |
| CN212012585U (en) | Linear array audio power amplifier | |
| CN103916727A (en) | Active integrated sound box with multiple digital signal processors (DSPs) | |
| CN103916757A (en) | Active integrated sound box with multi-DSP system | |
| CN205029850U (en) | Microphone adapter | |
| CN205644362U (en) | Sound card with multiple mode | |
| CN107979786A (en) | A kind of sound equipment for supporting more USB flash disks and the broadcasting of more bluetooths | |
| CN105047051B (en) | A kind of DSP Digital Signal Processing Experiment casees for being used to impart knowledge to students | |
| CN217116364U (en) | Audio signal processing equipment with adjustable frequency response | |
| CN202663541U (en) | Digital matrix loudspeaker box manager | |
| CN204272368U (en) | A kind of earphone with active digital three frequency division system | |
| CN206807576U (en) | AV1000M management center machines | |
| CN111586532A (en) | Linear array audio power amplifier | |
| CN202818605U (en) | Novel car audio load box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |