CN109873912A - Sound control method based on soft switch - Google Patents
Sound control method based on soft switch Download PDFInfo
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- CN109873912A CN109873912A CN201910130615.9A CN201910130615A CN109873912A CN 109873912 A CN109873912 A CN 109873912A CN 201910130615 A CN201910130615 A CN 201910130615A CN 109873912 A CN109873912 A CN 109873912A
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Abstract
The invention discloses a kind of sound control methods based on soft switch, comprising: primary speech signal is converted to audio digital signals using digital coding, and is transmitted by network；Audio digital signals are divided into different ip datagrams, addressing information are attached in ip datagram, and is sent by network by fusion device after receiving audio digital signals；Ip datagram is sent to next node using addressing information after obtaining the addressing information in ip datagram by each node in network；The destination of fusion device replaces and controls its addressing information after receiving ip datagram in treatment process, the former data in ip datagram are only supplied to Voice decoder and are decoded；Former data in ip datagram are decoded to obtain analog voice signal by Voice decoder.The present invention facilitates the process management of client's interview system, reinforcing audio-video file administration, the saving project budget, system compatibility stronger.
Description
Technical field
The present invention relates to voice transfer field, in particular to a kind of sound control method based on soft switch.
Background technique
In the R&D process of interview system, client proposes to wish energy while to the monitoring of process complete monitoring is met with
It is convenient for management, preservation and the utilization of audio and video data with digital convergence.But it also fails in traditional interview system by voice
It is merged with digital technology, traditional telephone exchange meeting project budget is higher, and system compatibility is not strong, and meets in client
In the process management of system, audio-video archives cannot be managed well.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, provides and a kind of facilitate client's meeting
See the process management of system, strengthen that audio-video file administration, to save the project budget, system compatibility stronger based on soft switch
Sound control method.
The technical solution adopted by the present invention to solve the technical problems is: constructing a kind of voice control side based on soft switch
Method includes the following steps:
A primary speech signal) is converted into audio digital signals using digital coding, and is transmitted by network；
B) audio digital signals are divided into different ip data after receiving the audio digital signals by fusion device
Report, addressing information is attached in the ip datagram, and is sent by network；
C) each node in network, will using the addressing information after obtaining the addressing information in the ip datagram
The ip datagram is sent to next node；
D) destination of the fusion device replaces and controls its addressing after receiving the ip datagram in treatment process
Former data in the ip datagram are only supplied to Voice decoder and are decoded by information；
E) the former data in the ip datagram are decoded to obtain analog voice signal by the Voice decoder.
In the sound control method of the present invention based on soft switch, carried out on ddn channel using time division multiplexing
Dynamic transmission, when there is voice service, the ddn channel is for used in voice transfer, and when there is no voice service, the ddn
Channel is then used for data.
In the sound control method of the present invention based on soft switch, used each time slot bandwidth is that 8kb is every
Second, when channel width is 64kb per second, then the ddn channel has 8 time slots, and fax occupies 4 time slots, and voice occupies 1
Time slot, remaining 3 time slot are occupied by data service.
In the sound control method of the present invention based on soft switch, telephone exchange is realized using pstn and pbx,
Or it is realized using the hot line mode without exchange.
In the sound control method of the present invention based on soft switch, the audio digital signals are marked using g729a
Standard, the line style voice digital signal of compression sampling are 8kb code stream per second.
In the sound control method of the present invention based on soft switch, it is any support ip data flow access method or
Person's topological structure could act as network link.
In the sound control method of the present invention based on soft switch, unit of the data in transmission process is word
It saves, believes that the structure of code is frame in the g729a standard, 1 frame is 10 bytes, and the Voice decoder is restored according to frame decoding
Voice signal.
In the sound control method of the present invention based on soft switch, the Voice decoder is decoded using g726
Device, the g726 decoder fax and tone decoding mode per second using 32kb.
Implement the sound control method of the invention based on soft switch, have the advantages that due to be equipped with will be original
Voice signal is converted to audio digital signals using digital coding, and is transmitted by network；Fusion device is receiving number
After voice signal, audio digital signals are divided into different ip datagrams, addressing information is attached in ip datagram, and is passed through
Network is sent；Each node in network is after obtaining the addressing information in ip datagram, using addressing information by ip number
Next node is sent to according to report；The destination of fusion device replaces in treatment process after receiving ip datagram and controls it and seek
Former data in ip datagram are only supplied to Voice decoder and are decoded by location information；Voice decoder will be in ip datagram
Former data be decoded to obtain analog voice signal, by using Softswitch technology by voice and digital convergence, therefore this hair
The bright process management for facilitating client's interview system, reinforcing audio-video file administration, the saving project budget, system compatibility are stronger.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is that the present invention is based on the flow charts in sound control method one embodiment of soft switch.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the sound control method embodiment the present invention is based on soft switch, soft switch is mainly had the following characteristics that
1) most basic call proceeding control is only provided.In traditional business, Call- Control1 related service is to link together
, and in soft exchanging system, each business feature and the network user are linked into equipment and are converted to unified packet format,
Therefore the basic call control unrelated with business and user is provided to be able to realize in soft switch, and service logic is then by others
Scp or service server provide.
2) networking capability is very flexible.Since Media layer is a flat network topology, switching network coverage is delivered again very extensively, because
The flexibility that this delivers switching network networking is very big, can satisfy the different demands of all types of user.
3) coverage area is wider.Soft switch can theoretically possess coverage area same with the ip network coverage, because entirely
Ball ip network is all intercommunication, thus be excluded that the influence of service feature, a Softswitch can cover global ip
User.
4) capacity is larger.Soft switch capacity is larger, and processing capacity is strong, data is managed concentratedly, compared with pstn, in wide area
It is easier to carry out in terms of business to promote.
5) various protocols are supported.Various standard agreements are supported in soft switch, so that various networks can be realized altogether between each other
It is logical.
In the present embodiment, the integration technology of voice and number should be used based on the sound control method of soft switch, merges skill
Art is the integrated combination of packets of voice technology and voice data, is capable of providing a new network environment, have flexibility it is high, at
The advantages that this is low, productivity is high and efficiency enhances.It is by following several that data and voice are integrated in a packet switching network
Based on point: 1) inhibiting to be improved efficiency with enhancing functions such as compress speech by peace and quiet.2) multiple by multichannel
For being improved efficiency.3) reduce cost using the corporate management of infrastructure component.4) by the transmission of call
It is realized on private data network, so that long-distance cost be made to be saved.5) it is connected in data application with voice.6) using can
The compuphone being able to achieve concentrates new opplication.7) support of new broadband wan technology.
Specifically, the flow chart for being somebody's turn to do the sound control method based on soft switch is as shown in Figure 1.In Fig. 1, soft friendship should be based on
The sound control method changed includes the following steps:
Primary speech signal is converted to audio digital signals using digital coding by step S01, and is passed by network
It send: primary speech signal being converted into audio digital signals using digital coding, and is transmitted by network, it is main in this step
If the conversion of voice-and-data is realized, specifically, primary speech signal is substantially analog waveform, in order to make these analog waves
Shape can be transmitted successfully over data networks it may first have to their format be converted to unified number format, this can lead to
Various types of voice coding is crossed to realize.The Voice decoder of source and destination must use the scheme as speech coder, this
Sample just can guarantee that destination equipment can be by the analog signal successful regeneration of source device digital encoding format.
Audio digital signals are divided into different ip datagrams after receiving audio digital signals by step S02 fusion device,
Addressing information is attached in ip datagram, and is sent by network: mainly realizing initial data to ip's in this step
Conversion, specifically, will be changed into another form when primary speech signal is after digital coding and be passed by network
It send.Speech network transmits encoded signal by the foundation of physical connection between communication end point.Different from circuit-switched network, ip net
Network does not form connection, and data are stored in the grouping or datagram of variable length, and control and addressing information are also accompanied by datagram
In, and it can gradually be sent to destination in a network.For this transmission, fusion device is receiving audio digital signals
Afterwards, it needs to be classified into different ip datagrams, and addressing information is attached in wherein, finally send out them by network
It send.
Each node in step S03 network is after obtaining the addressing information in ip datagram, using addressing information by ip
Datagram is sent to next node: in this step, each node in network is after obtaining the addressing information in ip datagram, meeting
It continues with location information and ip datagram is sent to next node.Any access method or topological structure for supporting ip data flow
It can be used as network link.
The destination of step S04 fusion device replaces and controls its addressing letter after receiving ip datagram in treatment process
Former data in ip datagram are only supplied to Voice decoder and are decoded by breath: mainly realizing that ip and data turn in this step
It changes, specifically, the destination of fusion device after receiving ip datagram, can replace and control its addressing letter in treatment process
Former data in ip datagram are only supplied to Voice decoder and are decoded by breath.
Former data in ip datagram are decoded to obtain analog voice signal: this step by step S05 Voice decoder
In mainly realize go back to voice, specifically, decoding process is exactly that Voice decoder solves the former data in ip datagram
Code obtains analog voice signal, that is, former data are decoded, and output is the result is that one taps with primary speech signal ten
Close analog signal.The present invention facilitates the process management of client's interview system, reinforcing audio-video file administration, saving project pre-
Calculation, system compatibility are stronger.
With the rapid development of Internet, data service increasingly obtains people's attention, consequent is numerical data
Extensive use of the network ddn in enterprise.Internet resources can be utmostly utilized by the voice service of ddn transmission,
Cost is saved, and is conducive to the exploitation of value-added service.
The basic rate that ddn channel has 64kb per second, 3 kinds of voice, data and fax business need to upload in channel simultaneously
It is defeated.Three kinds of business have different priority, and fax and the priority of voice service are higher than data service, but data service exists
Transmission process requires to interrupt, and fax and voice service can be then attached again when needed.According to this feature,
Dynamic used by the time division multiplexing that the present invention uses: when there is voice service, ddn channel for used in voice transfer, and
When not having voice service, ddn channel is then used for data, and the utilization rate of channel is improved with this.
Each time slot bandwidth of the present invention is that 8kb is per second, if channel width is that 64kb is per second, ddn channel has 8
A time slot, fax occupy 4 time slots, and voice occupies 1 time slot, remaining 3 time slot is occupied by data service.In this way for fax
And voice, due to receiving and dispatching the non-circuit connection in both ends, two kinds of business have some CU common units during processing, can be effective
Simplify design work.
Subscriber phone exchange can be realized by pstn and pbx, can also use the hot line mode without exchange.In ddn
On the basis of network transmission voice, long-distance telephone expenses can effectively be saved by being swapped by pstn.And for general voice,
The g729a standard that itu-t of the present invention recommends, the line style voice digital signal of compression sampling are 8kb code stream per second.
The time division multiplexing that the present invention uses, unit of the data in transmission process is byte.But code is believed in g729a standard
Structure be frame, 1 frame is 10 bytes, and Voice decoder can only restore primitive sound according to frame decoding.So Voice decoder
Header signal is captured, and is kept and transmission frame synchronization.
Voice decoder uses g726 decoder, g726 the decoder fax and tone decoding mode per second using 32kb.
Due to the difference of both transmission and voice service in terms of parameter, so g729a is not suitable for parameter coding in facsimile service and calculates
Method, it is necessary to select the wider array of waveform encoding algorithm of relevance grade.
It can also be the technology in the substitution present invention by the way of the call center that voice plate card integrates in practical application
Scheme can reach the functional requirement of portions of client, but networking and wiring are more troublesome, and system compatibility is poor.
In short, the present invention realizes a kind of voice control technology in the application of special occasions in soft-switch platform.Side of the present invention
Just the process management, reinforcing audio-video file administration of client's interview system, the saving project budget, system compatibility are stronger.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of sound control method based on soft switch, which comprises the steps of:
A primary speech signal) is converted into audio digital signals using digital coding, and is transmitted by network；
B) audio digital signals are divided into different ip datagrams after receiving the audio digital signals by fusion device,
Addressing information is attached in the ip datagram, and is sent by network；
C) each node in network, will be described using the addressing information after obtaining the addressing information in the ip datagram
Ip datagram is sent to next node；
D) destination of the fusion device replaces and controls its addressing letter after receiving the ip datagram in treatment process
Former data in the ip datagram are only supplied to Voice decoder and are decoded by breath；
E) the former data in the ip datagram are decoded to obtain analog voice signal by the Voice decoder.
2. the sound control method according to claim 1 based on soft switch, which is characterized in that existed using time division multiplexing
The enterprising Mobile state transmission of ddn channel, when there is voice service, the ddn channel is for used in voice transfer, and when not having voice industry
When business, the ddn channel is then used for data.
3. the sound control method according to claim 2 based on soft switch, which is characterized in that used each time slot
Bandwidth is that 8kb is per second, and when channel width is 64kb per second, then the ddn channel has 8 time slots, and fax occupies 4 time slots,
Voice occupies 1 time slot, remaining 3 time slot is occupied by data service.
4. the sound control method according to claim 3 based on soft switch, which is characterized in that telephone exchange uses pstn
It realizes with pbx, or is realized using the hot line mode without exchange.
5. the sound control method according to any one of claims 1 to 4 based on soft switch, which is characterized in that described
Audio digital signals use g729a standard, and the line style voice digital signal of compression sampling is 8kb code stream per second.
6. the sound control method according to any one of claims 1 to 4 based on soft switch, which is characterized in that any
The access method or topological structure for supporting ip data flow could act as network link.
7. the sound control method according to claim 5 based on soft switch, which is characterized in that data are in transmission process
Unit be byte, believe that the structure of code is frame in the g729a standard, 1 frame is 10 bytes, and the Voice decoder is according to frame
Decoding is to restore voice signal.
8. the sound control method according to claim 7 based on soft switch, which is characterized in that the Voice decoder is adopted
With g726 decoder, the g726 decoder fax and tone decoding mode per second using 32kb.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910130615.9A CN109873912A (en) | 2019-02-21 | 2019-02-21 | Sound control method based on soft switch |
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| CN201910130615.9A CN109873912A (en) | 2019-02-21 | 2019-02-21 | Sound control method based on soft switch |
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| CN109873912A true CN109873912A (en) | 2019-06-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110970038A (en) * | 2019-11-27 | 2020-04-07 | 云知声智能科技股份有限公司 | Voice decoding method and device |
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| US20050265323A1 (en) * | 2004-05-14 | 2005-12-01 | Thermond Jeffrey L | Home wireless router voip bandwidth management |
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| CN101478835A (en) * | 2009-01-09 | 2009-07-08 | 深圳信息职业技术学院 | VoWLAN system based on 1X EvDO-WiFi wireless router |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110970038A (en) * | 2019-11-27 | 2020-04-07 | 云知声智能科技股份有限公司 | Voice decoding method and device |
| CN110970038B (en) * | 2019-11-27 | 2023-04-18 | 云知声智能科技股份有限公司 | Voice decoding method and device |
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Application publication date: 20190611 |