CN201118637Y - CobraNet network audio processing device - Google Patents
CobraNet network audio processing device Download PDFInfo
- Publication number
- CN201118637Y CN201118637Y CNU2007201920919U CN200720192091U CN201118637Y CN 201118637 Y CN201118637 Y CN 201118637Y CN U2007201920919 U CNU2007201920919 U CN U2007201920919U CN 200720192091 U CN200720192091 U CN 200720192091U CN 201118637 Y CN201118637 Y CN 201118637Y
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Abstract
Disclosed is a CobraNet network audio processing device which relates to the CobraNet audio network real-time transmission, the audio signal digital processing and the audio processing control technical fields. The prior art has the advantages of complex structure and high cost; the CobraNet network audio processing device comprises a CobraNet module, an audio input/output interface and a signal conversion and encode-decode module arranged between the CobraNet module and the audio input/output interface; the signal conversion and encode-decode module is connected with a microcontroller used for controlling the signal transmission and signal distribution and a DSP processor used for processing the audio signal; the microcontroller is communicated with the DSP processor. The structure of the CobraNet network audio processing device is improved to remove the special control network in the prior art and to realize the co-network (the digital audio and the control data) control, to simplify the structure, to reduce the cost and to facilitate the application.
Description
[technical field]
The utility model relates to CobraNet audio network real-time Transmission, audio signal digit is handled and Audio Processing control technology field, specifically is a kind of CobraNet network audio treatment facility that integrates digitized audio frequency, audio network transmission, Audio Processing.
[background technology]
The CobraNet technology is based on the audio frequency RTP of ethernet technology, and it supports the real-time Transmission of the non-compressed word audio signal of sample frequency 48/96KHZ, resolution 24/20BIT.Application CobraNet technology can directly realize the real-time remote transmission of audio network, and the CobraNet technology has formed professional audio Network Transmission standard, and the current professional audio manufacturers of mostly counting are at the network audio transmitter of exploitation based on the CobraNet technology.
In the CobraNet audio frequency processing system, the processing of audio signal is generally realized by dsp processor.Because the CobraNet technology has been finished the digitlization of audio signal when realizing audio signal network real-time Transmission, only need and to send into the general dsp processor after the demodulation of digitized CobraNet audio signal, finish digital audio handles in DSP inside, foldback realizes that network sends for CobraNet network audio transport module then, just CobraNet technology and digital audio treatment technology seamless combination can be realized audio network transmission and digital audio processing capacity.
For the control audio processing procedure, finish the download of algorithm structure download and algorithm controls order, existing C obraNet audio frequency processing system is removed outside the CobraNet transmission network, also need set up the special-purpose ether Control Network of a cover, uses flush bonding processor control audio processing procedure.Control command at first passes to flush bonding processor, passes to dsp processor by flush bonding processor again.This method device hardware complex structure needs the one cover Control Network of design separately during constructing system, cost is higher.
[utility model content]
In order to overcome the above-mentioned defective that exists in the prior art, the utility model provides a kind of CobraNet network audio treatment facility, need not set up Control Network, with the purpose that reaches simplified structure, reduces cost.
For this reason, the utility model is by the following technical solutions: CobraNet network audio treatment facility, it is characterized in that it comprises CobraNet module, audio frequency input/output interface and is located at conversion of signals and coding/decoding module between CobraNet module, the audio frequency input/output interface, described conversion of signals and coding/decoding module are connected with control signal transmission and microcontroller that distributes and the dsp processor that audio signal is handled, and also have communication to connect between microcontroller and the dsp processor.The CobraNet module is in order to the digital audio of realization PCM form and the conversion between the CobraNet format digital audio frequency, and link to each other with network by Ethernet interface, the audio frequency input/output interface is in order to realize the conversion between analogue audio frequency, AES/EBU audio signal and the PCM digital audio format.Behind conversion of audio signal entering signal and the coding/decoding module, under the control of microcontroller, the reallocation of realization audio signal, from can directly entering the audio frequency input/output interface behind the digital audio decoding of CobraNet module, from can directly entering the CobraNet module behind the digital audio encoding of audio frequency input/output interface.The audio signal that needs to realize Audio Processing can be transferred into dsp processor, after handling, dsp processor is returned to conversion of signals and coding/decoding module, under the control of microcontroller, the voice data after the processing can send from the network interface of audio frequency input/output interface or CobraNet module.During use, some CobraNet network audio treatment facilities and at least one control are inserted in the CobraNet network with PC, PC sends Audio Processing algorithm structure and algorithm controls order, arrive the CobraNet module of appointment through network, audio processing command in the microcontroller scanning CobraNet module, obtain the back and resolve, again order is passed to dsp processor.The utility model utilizes existing CobraNet network just can realize the control and the processing of audio signal, has simplified system configuration, has reduced cost.
As the further of technique scheme improved and replenish, the utility model is further taked following technical measures:
Described CobraNet module links to each other by host interface with microcontroller, and microcontroller is by the audio processing command in the host interface scanning CobraNet module, and the host interface read or write speed is very fast, can realize quasi real time controlling.
Link to each other by asynchronous communication interface between described microcontroller and the dsp processor, transmit information by asynchronous communication between them.
Described microcontroller is connected with the algorithm stores module, in order to algorithm structure and the related algorithm parameter that the storage PC sends, can store 8 kinds of algorithm structures at most.
Described microcontroller is provided with the keyboard input interface, can fast the some algorithms that are pre-stored in the algorithm stores module be accessed, and passs dsp processor by the asynchronous communication oral instructions, carries out new algorithm process by dsp processor.
Beneficial effect: the utility model has been removed special-purpose Control Network of the prior art by improving the structure of CobraNet network audio treatment facility, has realized same net (digital audio and control data) control, simplifies the structure, and has reduced cost, and is easy to use.
[description of drawings]
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is an operation principle schematic block diagram of the present utility model.
Fig. 3 is a kind of user mode schematic diagram of the present utility model.
[embodiment]
CobraNet network audio treatment facility as shown in Figure 1, CobraNet module 1, conversion of signals and coding/decoding module 2, audio frequency input/output interface 5 link to each other successively, conversion of signals and coding/decoding module 2 are connected with microcontroller 3 and dsp processor 4, dsp processor utilizes two FLAG mouth simulation asynchronous communications, between microcontroller 3 and the dsp processor 4 by the asynchronous communication exchange message, microcontroller 3 is connected with algorithm stores module 6, links to each other by host interface between microcontroller 3 and the CobraNet module 1.Wherein, the CobraNet module can the CS1810xx chip be a core design, and microcontroller can be 8 MCU, and conversion of signals and coding/decoding module can adopt programmable logic device, and the algorithm stores module can be selected big capacity serial FLASH storage chip for use.The optional usefulness of dsp processor has the audio frequency application specific processor of 32 floating-point operation abilities, can realize Audio Processing functions such as time-delay, filtering, frequency division, equilibrium, audio mixing, route, pressure limit, AGC, feedback inhibition, signal generation.
As shown in Figure 2, Audio Processing algorithm structure and algorithm controls order are at first sent from PC 7, arrive CobraNet module 1 through network, microcontroller 3 is by the audio processing command in the host interface scanning CobraNet module 1 of CobraNet module, obtaining the back resolves, by the asynchronous communication mouth order is passed to dsp processor 4, dsp processor 4 is finished Audio Processing.Microcontroller 3 is provided with two asynchronous communication mouths, and PC 1 also can be directly passed to local microenvironment controller 3 with Audio Processing algorithm structure and algorithm controls order by second asynchronous communication mouth of microcontroller.Keyboard input interface 8 direct and microcontroller companies use button the algorithm that is pre-stored in the algorithm stores module 6 (Fig. 1) can be passed to dsp processor 4 fast.
During use, form a network (Fig. 3) with PC 7, switch 9 and some CobraNet network audio treatment facilities 10.Use the Control Software design Audio Processing flow process on the PC 7, the Audio Processing algorithm parameter is set, produce through compiler compiling back and to download required control command, be sent to the far-end CobraNet network audio treatment facility 10 of appointment by Ethernet, by the concrete Audio Processing function of its realization.
Claims (5)
1, CobraNet network audio treatment facility, it is characterized in that: it comprise CobraNet module, audio frequency input/output interface and be located at the CobraNet module and the audio frequency input/output interface between conversion of signals and coding/decoding module, described conversion of signals and coding/decoding module are connected with control signal transmission and microcontroller that distributes and the dsp processor that audio signal is handled, and also have communication to connect between microcontroller and the dsp processor.
2, CobraNet network audio treatment facility according to claim 1, it is characterized in that: described CobraNet module links to each other by host interface with microcontroller.
3, CobraNet network audio treatment facility according to claim 2 is characterized in that: link to each other by asynchronous communication interface between described microcontroller and the dsp processor.
4, according to claim 1,2 or 3 described CobraNet network audio treatment facilities, it is characterized in that: described microcontroller is provided with the keyboard input interface.
5, according to claim 1,2 or 3 described CobraNet network audio treatment facilities, it is characterized in that: described microcontroller is connected with the algorithm stores module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201920919U CN201118637Y (en) | 2007-11-09 | 2007-11-09 | CobraNet network audio processing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201920919U CN201118637Y (en) | 2007-11-09 | 2007-11-09 | CobraNet network audio processing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201118637Y true CN201118637Y (en) | 2008-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201920919U Expired - Lifetime CN201118637Y (en) | 2007-11-09 | 2007-11-09 | CobraNet network audio processing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201118637Y (en) |
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2007
- 2007-11-09 CN CNU2007201920919U patent/CN201118637Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HANGZHOU DIGISPIDER TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHAO FAN Effective date: 20101103 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 310005 TOWER A, 17/F, JINJIANG BUILDING, NO.111, HUSHU SOUTH ROAD, GONGSHU DISTRICT, HANGZHOU CITY, ZHEJIANG PROVINCE TO: 310005 NO.56(5/F), GUHE LANE, GONGSHU DISTRICT, HANGZHOU CITY, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101103 Address after: 310005, No. 56, ancient river lane, Gongshu District, Zhejiang, Hangzhou (5 floor) Patentee after: Hangzhou Desi Technology Co.,Ltd. Address before: Block A 17 layer 310005 in Hangzhou city in Zhejiang province Gongshu District 111 South Jinjiang building Patentee before: Zhao Fan |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080917 |