CN209375922U - A kind of six sound channels digital audio processor and power amplifier integrated machine - Google Patents
A kind of six sound channels digital audio processor and power amplifier integrated machine Download PDFInfo
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- CN209375922U CN209375922U CN201920116131.4U CN201920116131U CN209375922U CN 209375922 U CN209375922 U CN 209375922U CN 201920116131 U CN201920116131 U CN 201920116131U CN 209375922 U CN209375922 U CN 209375922U
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Abstract
The utility model discloses a kind of six sound channels digital audio processor and power amplifier integrated machines, including front-end circuit, middle terminal circuit and back-end circuit, front-end circuit include prime amplifier component, SPDIF decoder, audio interface, sample rate conversion equipment, digital hybrid matrix be connected be connected with pink noise generator；In middle terminal circuit: digital hybrid matrix is connected by equalizer element with main FADE numeric field regulating device, and the equalizer element of back-end circuit is made of 27 sections of balanced devices, bass adjuster, high pitch regulator, timer and phase controller；The utility model is by multiple functions such as 6 channel audio processors, power amplification and each channel power source timing control, using high integration technology, all devices are combined in 2U cabinet, occupied space is extremely compact, the miscellaneous functions such as the decoding of 2 sound channels/5.1 sound channels and microphone access are additionally provided, maximum meets the demand of the small-sized movie theater of six sound channels personalizedly.
Description
Technical field
The utility model relates to a kind of audio processor and power amplifier more particularly to a kind of six sound channels digital audio processors
And power amplifier integrated machine.
Background technique
The upgrading of product is carried out for the device requirement of the mobile film projection of domestic requirements rural area and program request movie theater, is improved and is produced
The supplement and expansion of the reliability of product, mobile film projection and program request movie theater as digital camera, the market demand is very big, but the prior art
There are many disadvantages, are no longer satisfied the requirement of people.
Utility model content
The purpose of this utility model is to provide a kind of six sound channels digital audio processor and power amplifier integrated machines, solve existing
Shortcoming existing for technology.
The utility model adopts the following technical solution realizes:
A kind of six sound channels digital audio processor, which is characterized in that including front-end circuit, middle terminal circuit and back-end circuit,
Wherein, the front-end circuit includes:
Prime amplifier component, the prime amplifier component are made of multiple prime amplifiers, and the effect of the prime amplifier is
By audio signal be amplified to middle terminal circuit and back-end circuit can received input range, prime amplifier component by filter and
Analog/digital conversion device is connected with 7.1 channel decoders；
SPDIF decoder (SONY/PHILIPS digital audio interface), the SPDIF decoder end and 7.1 sound
Road decoder is connected, and the other end is connected by digital isolator component with audio signal input end；
7.1 channel decoder is connected with a sample rate conversion equipment；
Audio interface, the audio interface are connected by digital isolator component with AES/EUB decoder, the AES/
EUB decoder is connected with the sample rate conversion equipment；
In the middle terminal circuit:
The sample rate conversion equipment is connected with a digital hybrid matrix, and the digital matrix is used for high-definition digital
Input, the output exchange of signal, digital hybrid matrix support multiple signals defeated with regard to a kind of high-definition video signal switching equipment
Enter, multiple signals output.For the matrix for the input of multiple high-definition digital signals, output exchange, the output of any signal all the way can
With any signal source all the way of unrestricted choice without interfering other outputs, minimize signal transmission attenuation, image harmony
Sound signal energy high fidelity output.
The digital hybrid matrix is connected with a pink noise generator；
The digital hybrid matrix is connected with main FADE numeric field regulating device by equalizer element and is connected, described equal
Equalizer element is made of 27 sections of balanced devices, bass adjuster, high pitch regulator, timer and phase controller；
In the back-end circuit:
The main FADE numeric field regulating device passes through sampler, the 600W digital power amplifier being successively electrically connected
It is connected with passive filtering network with output end.
Further, the digital isolator component is made of the electrical connection of multiple digital isolators.
Further, the audio signal input end includes optical fiber and coaxial cable.
Further, the sampler is the sampler of 8 times of interpolation, 128 times of oversamplings.
A kind of power amplifier integrated machine, which is characterized in that six sound channels digital audio processor is provided in the power amplifier integrated machine.
The advantageous effects of the utility model are: by 6 channel audio processors, power amplification and each channel power source timing
The multiple functions such as control are combined in all devices in 2U cabinet, occupied space is extremely compact using high integration technology.It takes at place
It is auxiliary to additionally provide the decoding of 2 sound channels/5.1 sound channels and microphone access etc. for 6 channel formats of provided with processor function treatment digital movie
Assist energy, maximum meet the demand of the small-sized movie theater of six sound channels personalizedly.
Detailed description of the invention
Fig. 1 is the front-end circuit part of digital audio processor schematic block circuit diagram.
Fig. 2 is the middle-end circuit part of digital audio processor schematic block circuit diagram.
Fig. 3 is the back-end circuit part of digital audio processor schematic block circuit diagram.
Specific embodiment
By the following description of the embodiment, public understanding the utility model will more be facilitated, but can't should
Specific embodiment given by applicant is considered as the limitation to technical solutions of the utility model, any pair of component or technology are special
The definition of sign be changed and/or to overall structure make form and immaterial convert the technology of the utility model of being regarded as
Protection scope defined by scheme.
The major function and feature of the utility model:
25 core D type film digital signal source interface of standard receives the input of server A ES-EBU6 sound channel digital.
6 channel high power digitals export 300W*6 (8 Ω)/600w*6 (4 Ω)
6 output channels are provided with independent gain control, delay adjustment and phase controlling.
2 channels for infra-low frequency are equipped with two road adjustable parameter balanced devices.
There are 27 sections of 1/3oct balanced devices in remaining 4 channel.
Independent pink noise built in 6 channels and sine wave signal generator (125Hz, 500HZ, 1KHZ, 5KHZ,
10KHZ), facilitate rigging up and debugging.
Totally digitilized power amplifier is configured with over-voltage, under-voltage, overcurrent, short circuit, multiple spot overtemperature, and peak value crosses the full function such as limit
It can protection.
1 auxiliary optical fiber input: the decoded signal (32-96KHZ, 24bit sample rate) of S/PDIF
2 coaxial auxiliary inputs: the adaptive 32-96KHZ of AES/EBU or S/PDIF, 24bit sample rate
One computer aided simulation solid vocal input: voltage: 300mv maximum 3Vrms.
One balance microphone input: voltage: 30mv.
Exchange switching between each input signal, all has function of being fade-in fade-out.
Various input formats have independent level default and specify booting format preset function.
With personality module, the backup and duplication of setting and all settings of system are realized in the programming of embedded software.Tool
Stand-by power source timing control function makes 6 channel audio processors start by sequence, shut down automatically with power amplifier.
A kind of six sound channels digital audio processor, including front-end circuit, middle terminal circuit and back-end circuit, wherein front end electricity
Road includes:
Prime amplifier component, prime amplifier component are made of multiple prime amplifiers, and the effect of prime amplifier is to believe audio
Number be amplified to middle terminal circuit and back-end circuit can received input range, prime amplifier component passes through filter and analog/digital conversion
Device is connected with 7.1 channel decoders；
SPDIF decoder (SONY/PHILIPS digital audio interface), SPDIF decoder end and 7.1 channel decoders
It is connected, the other end is connected by digital isolator component with audio signal input end；
SPDIF is the abbreviation of SONY, PHILIPS household digital audio interface, can transmit PCM stream and Dolby
This kind of surround sound compressed audio signal of Digital, dts, can allow the audio processor of the utility model to have more powerful
Device extension ability.
7.1 channel decoders are connected with a sample rate conversion equipment；
Audio interface, audio interface are connected by digital isolator component with AES/EUB decoder, AES, EUB decoder
It is connected with sample rate conversion equipment；
AES/EBU standard:
The full name of AES/EBU is Audio Engineering Society/European Broadcast Union (sound
Frequency Association of Engineers/European Broadcasting Union), become the more popular standard of pro digital audio.A large amount of products for civilian use and
Professional audio digital device such as CD player, DAT, MD machine, digital sound console, Digital Audio Workstation etc. all supports AES/EBU.
AES/EBU be it is a kind of by based on single twisted-wire to come the serial bit transport protocol that transmits digital audio-frequency data.
It balanced, apart from transmitting data, if balanced, need not can transmit farther distance up to 100m.It provides two
The audio data (24 bit quantization of highest) of channel, channel are self-clockings and self synchronous.It also provides transmission control
The detectability of expression (the channel status bit) and some error codes of method and status information.Its clock information be by
Transmission end control, the bit stream from AES/EBU.Its three standard sample rates are 32kHz, 44.1kHz, 48kHz, certain many
Interface can work in other different sample rates.
AES/EBU provides " profession " and " consumption " both of which, both maximum difference is channel status bit lattice
Source and destination address, date-time code, sampled point in the offer of formula, in the state bit format of professional mode including digital channel
Number, byte length and other information.The thing that consumption mode includes contains copy protection information with regard to fewer.In addition,
AES/EBU standard provides " user data ", includes instruction manual in its bit stream
The General Physics connecting medium of AES/EBU has: (1) balance or difference connection use the three of XLR (Card) connector
Core microphone shielded cable, parameter are 110 Ω of impedance, and level range 0.2V~5Vpp is dithered as ± 20ns.(2) single-ended non-equilibrium
Connection, uses the audio cinch cable of RCA plug.(3) optics connects, and uses optical fiber connector.
Sample rate conversion equipment is connected with a digital hybrid matrix, and digital matrix is defeated for high-definition digital signal
Enter, export exchange, digital hybrid matrix supports multiple signals input, multichannel letter with regard to a kind of high-definition video signal switching equipment
Number output.For the matrix for the input of multiple high-definition digital signals, output exchange, the output of any signal all the way can be with unrestricted choice
Any signal source all the way minimizes signal transmission attenuation without interfering other outputs, and image and voice signal can be high
Fidelity output.
Digital hybrid matrix is connected with main FADE numeric field regulating device by equalizer element and is connected, equalizer element
It is made of 27 sections of balanced devices, bass adjuster, high pitch regulator, timer and phase controller；
High definition hybrid matrix is a high performance high-definition video signal switching equipment, supports multiple signals input, multichannel
Signal output.The matrix can be selected freely for the input of multiple high-definition digital signals, output exchange, the output of any signal all the way
Any signal source all the way is selected without interfering other outputs, minimizes signal transmission attenuation, image and voice signal energy
High fidelity output.
Main FADE numeric field regulating device is put by successively electrical 8 times of interpolation, 128 times of oversampling devices, 600W digital power
Big device and passive filtering network are connected with output end.
Digital isolator component is made of the electrical connection of multiple digital isolators.
Audio signal input end includes optical fiber and coaxial cable.
In the present invention, Fig. 1 to Fig. 3 is an entirety, it may be assumed that circuit middle-end is respectively and disclosed in Fig. 1 disclosed in Fig. 2
The electrical connection of circuit rear end disclosed in circuit front-end and Fig. 3.
Certainly, the utility model can also have other various embodiments, without departing substantially from the spirit of the present invention and its essence
In the case where, those skilled in the art can make various corresponding changes and modifications, but this according to the utility model
A little corresponding changes and modifications all should belong to the protection scope of the utility model the attached claims.
Claims (5)
1. a kind of six sound channels digital audio processor, which is characterized in that including front-end circuit, middle terminal circuit and back-end circuit,
In, the front-end circuit includes:
Prime amplifier component, the prime amplifier component are made of multiple prime amplifiers, and the effect of the prime amplifier is by sound
Frequency signal is amplified to middle terminal circuit and the received input range of back-end circuit energy, and prime amplifier component passes through filter and analog/digital
Conversion equipment is connected with 7.1 channel decoders；
SPDIF decoder, the SPDIF decoder end are connected with 7.1 channel decoder, and the other end passes through number isolation
Device assembly is connected with audio signal input end；
7.1 channel decoder is connected with a sample rate conversion equipment；
Audio interface, the audio interface are connected by digital isolator component with AES/EUB decoder, the AES/EUB solution
Code device is connected with the sample rate conversion equipment；
In the middle terminal circuit:
The sample rate conversion equipment is connected with a digital hybrid matrix, and the digital matrix is used for high-definition digital signal
Input, output exchange；
The digital hybrid matrix is connected with a pink noise generator；
The digital hybrid matrix is connected with main FADE numeric field regulating device by equalizer element and is connected, the balanced device
Component is made of 27 sections of balanced devices, bass adjuster, high pitch regulator, timer and phase controller；
In the back-end circuit:
The main FADE numeric field regulating device passes through sampler, 600W digital power amplifier and the nothing being successively electrically connected
Source filter network is connected with output end.
2. six sound channels digital audio processor according to claim 1, which is characterized in that the digital isolator component by
Multiple digital isolator electrical connections are constituted.
3. six sound channels digital audio processor according to claim 1, which is characterized in that the audio signal input end packet
Include optical fiber and coaxial cable.
4. six sound channels digital audio processor according to claim 1, which is characterized in that the sampler is 8 times and inserts
The sampler of 128 times of oversamplings of value.
5. a kind of power amplifier integrated machine, which is characterized in that be provided with six sound channels number as described in claim 1 in the power amplifier integrated machine
Word audio processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920116131.4U CN209375922U (en) | 2019-01-23 | 2019-01-23 | A kind of six sound channels digital audio processor and power amplifier integrated machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920116131.4U CN209375922U (en) | 2019-01-23 | 2019-01-23 | A kind of six sound channels digital audio processor and power amplifier integrated machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209375922U true CN209375922U (en) | 2019-09-10 |
Family
ID=67826000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920116131.4U Expired - Fee Related CN209375922U (en) | 2019-01-23 | 2019-01-23 | A kind of six sound channels digital audio processor and power amplifier integrated machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209375922U (en) |
-
2019
- 2019-01-23 CN CN201920116131.4U patent/CN209375922U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 211132 Jiangsu Province, Nanjing city Jiangning District of Tangshan Park, Road No. 10 Patentee after: Nanjing Zhongguang Huaxia Technology Co.,Ltd. Address before: 211132 Jiangsu Province, Nanjing city Jiangning District of Tangshan Park, Road No. 10 Patentee before: SINOCINETECH Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190910 Termination date: 20220123 |