CN207266263U - A kind of digital movie audio processors - Google Patents
A kind of digital movie audio processors Download PDFInfo
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- CN207266263U CN207266263U CN201721205037.3U CN201721205037U CN207266263U CN 207266263 U CN207266263 U CN 207266263U CN 201721205037 U CN201721205037 U CN 201721205037U CN 207266263 U CN207266263 U CN 207266263U
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- decoders
- character matrix
- digital
- audio processors
- sampling rate
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Abstract
The utility model discloses a kind of digital movie audio processors, it is characterized in that, including microphone, microphone successively with pre-arcing road, filter circuit, A/D conversion circuits are connected with character matrix, character matrix is connected with pink noise generator and sampling rate converter, sampling rate converter is connected with 7.1 decoders and is connected with AES/EBU decoders, 7.1 decoders and SPDIF decoders, digital isolator, optical fiber is connected with coaxial cable, character matrix also with 27 sections of balanced devices, bass adjuster, high pitch regulator, timer, phase controller FADE numeric field adjusters are connected, also with low-pass filter, delayer, parametric equalizer, interpolation oversampling device is connected.Operation is succinctly, conveniently.Equipment have it is easy to use, flexibly, the features such as reliability is high, superior performance.
Description
Technical field
It the utility model is related to a kind of audio processors, more particularly to a kind of digital movie audio processors.
Background technology
The multichannel movie theatre audio frequency processing of the prior art, the input and output quantity of demand is big, and function module is more, real-time
Height, the baseband signal process flow that need to be realized have 14 function modules：Digital signal reception, clock recovery, AES decodings, sampling
Rate is changed, and forward gain control, Inverse problem, noise generator, posture is balanced, 27 sections of equilibriums, parametric equalization, delay, phase
Control, frequency dividing, output gain control, the control function module that need to be realized have：Communication, remote control, parameter calculate, and parameter storage, shows
Show, the sophisticated functions that need to be realized has：5.1 to 7.1,5.1 to 13.1,5.1 to 15.1 matrix up conversion, output channel it is any
Assignment definition.
There are problems with for existing multichannel processing equipment：Piled up and formed by multiple devices, high failure rate；Signal is more
It is secondary to pass through digital simulation, the conversion of modulus numeral, tonequality deterioration；Flow is complicated,, can not be long-range using in complexity using complexity
Unified management and program upgrading, it is with high costs.
Utility model content
The purpose of this utility model is to provide a kind of digital movie audio processors, solve existing in the prior art lack
Regret.
The utility model adopts the following technical solution realizes：
A kind of digital movie audio processors, it is characterised in that including microphone, the microphone successively with pre-arcing
Road, filter circuit, A/D conversion circuits are connected with character matrix, and the character matrix turns with pink noise generator and sample rate
Parallel operation is connected, and the sampling rate converter is connected with 7.1 decoders and is connected with AES/EBU decoders, 7.1 decoders and SPDIF
Decoder, digital isolator, optical fiber are connected with coaxial cable, character matrix also with 27 sections of balanced devices, bass adjuster, high-pitched tone
Section device, timer, phase controller, digital governer are connected.
Further, character matrix is also connected with low-pass filter, delayer, parametric equalizer, oversampling device.
The advantageous effects of the utility model are：For the audio processing equipment that huge curtain Multi-acoustic channel digital film is supporting, it is
The sound signal that digital cinema server (or player) exports is reprocessed, located using Digital Signal Processing by system
Reason, there is provided fully meet film digital stereo required standard 5.1 (or 7.1) sound channel output also meet 11.1,13.1 with
15.1 channel structures：Left, center, right, it is left, right in, it is left surround, right surround, left back ring, it is right after ring, left comer, right corner, left front top,
Top, infra-low frequency behind right sinciput, left back top, the right side.The installation and debugging of system use the laptop computer operation interface of hommization, operation
Succinctly, conveniently.Equipment have it is easy to use, flexibly, the features such as reliability is high, superior performance.
Brief description of the drawings
Fig. 1 is the Part I of audio processors circuit structure.
Fig. 2 is the Part II of audio processors circuit structure.
Fig. 3 is the Part III of audio processors circuit structure.
Embodiment
By the following description to embodiment, it will more contribute to public understanding the utility model, but can't should
Specific embodiment given by applicant is considered as the limitation to technical solutions of the utility model, it is any special to component or technology
It is that the definition of sign is changed and/or overall structure is made form and immaterial convert the technology for being regarded as the utility model
The protection domain that scheme is limited.
Digital movie audio processors as shown in Figure 1 to Figure 3, its function of possessing include 16 sound channel AES- may be selected
EBU numeral inputs, applied to derived digital signal；The decoded signal with S/PDIF inputs may be selected；8 independent simulation inputs；
Adjust with volume gain, inputted for public address system and the microphone of test；Exchange switching between each input signal,
It is respectively provided with function of being fade-in fade-out；Division function with main sound channel loudspeaker left, center, right output channel；With main sound channel loudspeaker
Selection function.In addition to infra-low frequency sound channel, each sound channel has 27 sections of 1/3oct balanced devices；Infra-low frequency sound channel is equipped with two road adjustable parameters
Balanced device；Input format has independent level to preset with specifying start form preset function；Every kind of input format has independence
Master volume control；16 output channels are provided with independent gain control, delay adjustment and phase controlling；16 equal bands of sound channel
There are independent pink noise and sine wave (125Hz, 500Hz, 1kHz, 5kHz, 10kHz) signal generator, easy to the peace of equipment
Dress and debugging；Have the function of that 5.1 sound channels turn 7.1/13.1/15.1 sound channels；It is real with personality module, the programming of embedded software
The backup and duplication of setting and all settings of existing system.
Processor interface：8 channel analog signals input：25 core D type hole interfaces of standard.8/16 channel digital signal inputs
(AES-EBU)：25 core D type hole interfaces of standard.Numeral input：Standard coaxial interface.Numeral input：Standard coaxial interface and standard
Optical fiber interface (S/PDIF).Microphone inputs：Standard Card hole interface, can set and be mixed into center channels or around sound channel.Circuit
Differential Output：Using 3.81 phoenix terminal, 48 road output interface.Monitor output：3.81 phoenix terminal of standard.PC machine data exchange：
USB interface and Ethernet interface.
Oversampling device：The principle of oversampling is to be calculated from existing digital signals by interpolation between sample point
Signal size, such as the signal of 44.1kHz changed into the signal of 88.2kHz.The main function of oversampling is to aid in us and obtains
More accurate analog signal.The number that the signal of more high frequency is sampled will be fewer, for example the sine wave of a 20kHz passes through
The sampling of 44.1kHz, less than three sample points of a cycle point, original sine wave will be calculated from these three sample points in theory
It can accomplish, it is very numerous and diverse for being calculated as actual digit circuit that problem, which is, therefore be developed
The various modes resorted to trickery to serve oneself wish to by it is better simply be calculated it is close to former wave mode as a result, oversampling one kind therein at last
Method, purpose are to rebuild high-frequency signals.So-called several times are exactly several times of original sampling rate, and what is generally more often heard is eight
Times oversampling.
Fig. 1 to Fig. 3 is a secondary complete circuit structure diagram, and the complete circuit diagram of a width is divided into three sections as space is limited,
Fig. 1 to Fig. 3, which is sequentially connected, can form a secondary complete circuit diagram.
Certainly, the utility model can also have other various embodiments, without departing substantially from the utility model spirit and its essence
In the case of, those skilled in the art can make various corresponding changes and deformation, but this according to the utility model
A little corresponding changes and deformation should all belong to the scope of the claims appended by the utility model.
Claims (2)
- A kind of 1. digital movie audio processors, it is characterised in that including microphone, the microphone successively with pre-arcing road, Filter circuit, A/D conversion circuits are connected with character matrix, the character matrix and pink noise generator and sampling rate converter It is connected, the sampling rate converter is connected with 7.1 decoders and is connected with AES/EBU decoders, and 7.1 decoders are decoded with SPDIF Device, digital isolator, optical fiber are connected with coaxial cable, and character matrix is also adjusted with 27 sections of balanced devices, bass adjuster, high pitch Device, timer, phase controller, digital governer are connected.
- 2. digital movie audio processors according to claim 1, it is characterised in that character matrix also with low-pass filtering Device, delayer, parametric equalizer, oversampling device are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721205037.3U CN207266263U (en) | 2017-09-19 | 2017-09-19 | A kind of digital movie audio processors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721205037.3U CN207266263U (en) | 2017-09-19 | 2017-09-19 | A kind of digital movie audio processors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207266263U true CN207266263U (en) | 2018-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721205037.3U Expired - Fee Related CN207266263U (en) | 2017-09-19 | 2017-09-19 | A kind of digital movie audio processors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207266263U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110493702A (en) * | 2019-08-13 | 2019-11-22 | 广州飞达音响股份有限公司 | Six face sound shadow institute reproduction systems |
-
2017
- 2017-09-19 CN CN201721205037.3U patent/CN207266263U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110493702A (en) * | 2019-08-13 | 2019-11-22 | 广州飞达音响股份有限公司 | Six face sound shadow institute reproduction systems |
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| 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. |
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| 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: 20180420 Termination date: 20210919 |