CN102932566B - Method for reducing voice distortion in VOIP (Voice over Internet Protocol) phone call under VDI (Virtual Desktop Infrastructure) environment - Google Patents
Method for reducing voice distortion in VOIP (Voice over Internet Protocol) phone call under VDI (Virtual Desktop Infrastructure) environment Download PDFInfo
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Abstract
The invention provides a method for reducing voice distortion in a VOIP (Voice over Internet Protocol) phone call under a VDI (Virtual Desktop Infrastructure) environment, wherein a traditional VOIP phone client program is logically divided into user operation interface modules and execution modules. The method comprises the following steps of: respectively establishing the user operation interface module on a virtual desktop of a server side at one call party and a virtual desktop of a server side at the other call party; respectively deploying the execution module on a desktop of a client at one call party and a desktop of a client at the other call party; realizing conversation connection between one call party and the other call party through cooperation of the user operation interface modules and the execution modules; and carrying voice data interaction by the execution modules when one call part is subjected to voice call with the other call party. The method disclosed by the invention has the advantages of reducing voice information forwarding frequency and the voice information encoding and decoding frequency in the VOIP phone call process under the VDI environment on the premise of not changing the habit of using a VOIP phone by a user, thereby prolonging the call delay time, reducing the voice distortion degree and improving the call quality.
Description
[technical field]
The present invention relates to computer communication technology field, relate in particular to a kind of method that reduces voice distortion under virtual desktop architecture VDI environment in VOIP telephone relation.
[background technology]
VDI, English full name Virtual Desktop Infrastructure, i.e. virtual desktop architecture.It is not to each user, to configure the desktop PC of an operation Windows XP or Vista, but by the server operation Windows XP in data center, your desktop is carried out virtual; User calculates agreement by the client from client device (client computer or home PC) and is connected with virtual desktop, and the desktop that user accesses them similarly is that desktop is installed in the traditional this locality of access.
Along with the popularization of cloud computing technology, VDI agreement is more and more used.VOIP(Voice over Internet Protocol) phone is the networking telephone, it is by after the sound signal tying-in overcompression of simulation and package, form with data packet is carried out the transmission of speech sound signal in IP network, popular namely Internet Protocol telephone or IP phone.VOIP phone, Chinese is exactly " speech business realizing by IP Packet Generation ", and it makes you can pass through the Internet freely or rate transmit the business such as voice, fax, video and data in lowland very much.1, the desktop of PC1 client is provided with VOIP calling customer terminal program in traditional PC application model, the operation principle of VOIP phone is shown in Fig. 1, that is:, the desktop of PC2 client is also provided with VOIP calling customer terminal program; In the time of will carrying out telephone communication between PC1 and PC2, " VOIP calling customer terminal program " in the desktop of PC1 client obtains speech data and speech data encoded and be commonly called as by PBX(PBX by speech coding algorithm G.711, G.723 or G.729 from the sound card of PC1 client: stored-program control exchange, SPC PBX, telephone exchange, group telephone etc.PBX is a kind of of telephonic communication management means that modern handle official bussiness is conventional, the person that makes Telephone Management Agency can group management outside line incoming call and interior lines breathe out.) and TCP/IP network with RTP/RTCP(conventional VOIP voice data transmission and control protocol) protocol transmission is to the desktop of PC2 client; 2, the speech data after " the VOIP calling customer terminal program " in the desktop of PC2 client adopts speech coding algorithm G.711, G.723 or G.729 to coding is decoded and the sound card by PC2 client broadcasts.Wherein VOIP calling customer terminal program on stream normally by operation interface together with encoding and decoding speech module integration, this is no problem in traditional PC application model (in local this VOIP calling customer terminal program of directly installing of PC), and this speech data there will not be the problem of conversation delay, voice distortion.
Under traditional VDI environment, the operation principle of VOIP phone is shown in Fig. 2, that is: VDI environment audio frequency mapping client-side program 1, first to be installed at the desktop of user's 1 client, VOIP calling customer terminal program and VDI environment audio frequency mapping serve end program will be installed under the virtual desktop of user 1 service end; Virtual desktop in the desktop of user's 2 clients and user 2 service end also carries out fitting operation simultaneously; 2, in the time will carrying out telephone communication between user 1 and user 2, the VDI environment audio frequency of user's 1 client mapping client-side program to from sound card, obtain speech data carry out after compression coding by TCP/IP network with RTP/RTCP protocol transmission the virtual desktop to user 1 service end; 3, " the VDI environment audio frequency mapping serve end program " of the virtual desktop of user 1 service end reverts to after the speech data from " user 1 client " is decompressed, decoded in user 1 the virtual sound card of virtual desktop of service end; 4, " the VOIP calling customer terminal program " of the virtual desktop of user 1 service end from virtual sound card, to obtain speech data and by speech coding algorithm, speech data is encoded and pass through TCP/IP network be " virtual desktop of user 2 service end " with RTP/RTCP protocol transmission to the opposing party of " call session "; 5, the VOIP calling customer terminal program of the virtual desktop of user 2 service end is given the virtual sound card of virtual desktop of user 2 service end after also will decoding; 6, the VDI environment audio frequency of the virtual desktop of user 2 service end mapping serve end program also will enter to collect after decoded speech data, also will send to through network the VDI environment audio frequency mapping client-side program of user 2 client; 7, the VDI environment audio frequency of user's 2 clients mapping client-side program broadcasts the sound card by user's 2 clients after the speech data decoding receiving.
Therefore, but at VDI(virtual desktop framework) in environment, directly by the VOIP calling customer terminal program of operation interface and encoding and decoding speech module integration one, there will be voice messaging need pass through multistage forwarded, the process of encoding and decoding repeatedly, will cause like this conversation delay increase, the distortion factor to increase, speech quality is declined.
[summary of the invention]
The technical problem to be solved in the present invention, be to provide a kind of method that reduces voice distortion under virtual desktop architecture VDI environment in VOIP telephone relation, do not change under the custom that user uses VOIP phone, reduce voice messaging hop count and voice messaging encoding and decoding number of times in VOIP telephone relation process under VDI environment.
The present invention is achieved in that a kind of method that reduces voice distortion under virtual desktop architecture VDI environment in VOIP telephone relation, comprises the steps:
Step 1, at call one side's the virtual desktop of service end and call the opposing party's the virtual desktop of service end, all set up user interface module; At call one side's the desktop of client and the desktop of call the opposing party's client, all dispose Executive Module; Described user interface module has been used for mutual with user operation, transfers user's executable operations to operational order; Described Executive Module has been used for initiation, foundation, maintenance and the release of VOIP telephone conversation, and encoding and decoding speech and transmission control speech data;
Initiation, the telephone conversation that step 2, user are carried out telephone conversation at the virtual desktop of call one side's service end set up, telephone conversation keeps and during the releasing operation of telephone conversation, initiation instruction, telephone conversation that described call one side's user interface module is converted to corresponding telephone conversation by user's operation are set up releasing order of instruction, telephone conversation hold instruction and telephone conversation; And those instructions are given to described call one side's Executive Module by Internet Transmission;
Callee's number of the instruction that step 3, the side's that converses Executive Module is received and user's input carries out alternately through a PBX and call the opposing party by Session Initiation Protocol, completes initiation, foundation, maintenance and the release of call one side and call the opposing party's VOIP telephone conversation;
Step 4, the side's that converses Executive Module and call the opposing party's Executive Module can be by the state of the execution result of instruction and telephone conversation corresponding call one side's user interface module, call the opposing party's the user interface module of feeding back to respectively; The opposing party that simultaneously converses can feed back to calling party's number call the opposing party's user interface module and present to user;
Step 5, in the session establishment success of call one side and call the opposing party phone and while carrying out voice call, a side the Executive Module conversed obtains speech data and by G.711 from the sound card of client, G.723 or G.729 speech coding algorithm speech data is encoded and by PBX and TCP/IP network with RTP/RTCP protocol transmission the Executive Module to call the opposing party, G.711 call the opposing party's Executive Module adopts, G.723 or G.729 the speech data of speech coding algorithm after to coding decoded and the sound card of the client by call the opposing party is play.
Further, described call one side and call the opposing party, also comprise voice call except carrying out: carry out address list information inquiry, obtain the information of address list and carry out instant message transmission.
Further, after the session establishment success of call one side and call the opposing party phone, inquire about the information of address list, when obtaining the information of address list or transmitting message operation; A side the user interface module conversed is carried out user's operation alternately through PBX and TCP/IP network and described call the opposing party's user interface module, and call the opposing party gives through PBX and TCP/IP network-feedback the side that converses by the response results of user's operation.
Tool of the present invention has the following advantages: at call one side's the virtual desktop of service end and the virtual desktop of call the opposing party's service end, all set up user interface module; At call one side's the desktop of client and the desktop of call the opposing party's client, all dispose Executive Module; When the side that converses carries out voice call with call the opposing party, by Executive Module, carry out interactive voice data.The present invention uses under the custom of VOIP phone not changing user, reduces voice messaging hop count and voice messaging encoding and decoding number of times in VOIP telephone relation process under VDI environment; Thereby reduce the conversation delay time, reduce voice distortion degree, improve speech quality.
[accompanying drawing explanation]
Fig. 1 is the fundamental diagram of VOIP telephone relation in PC application model in prior art.
Fig. 2 is the fundamental diagram of VOIP telephone relation under VDI environment in prior art.
Fig. 3 is the fundamental diagram of the present invention's VOIP telephone relation under VDI environment.
[embodiment]
Refer to shown in Fig. 3, under a kind of virtual desktop architecture VDI environment of the present invention, in VOIP telephone relation, reduce the method for voice distortion, comprise the steps:
Step 1, at call one side's the virtual desktop of service end and call the opposing party's the virtual desktop of service end, all set up user interface module; At call one side's the desktop of client and the desktop of call the opposing party's client, all dispose Executive Module; Described user interface module has been used for mutual with user operation, transfers user's executable operations to operational order; Described Executive Module has been used for initiation, foundation, maintenance and the release of VOIP telephone conversation, and encoding and decoding speech and transmission control speech data;
Initiation, the telephone conversation that step 2, user are carried out telephone conversation at the virtual desktop of call one side's service end set up, telephone conversation keeps and during the releasing operation of telephone conversation, initiation instruction, telephone conversation that described call one side's user interface module is converted to corresponding telephone conversation by user's operation are set up releasing order of instruction, telephone conversation hold instruction and telephone conversation; And those instructions are given to described call one side's Executive Module by Internet Transmission;
Callee's number of the instruction that step 3, the side's that converses Executive Module is received and user's input is by Session Initiation Protocol (session initiation protocol, complete the work such as initiation, foundation, maintenance and release of VOIP telephone conversation) through a PBX and call the opposing party, carry out alternately, complete initiation, foundation, maintenance and the release of call one side and call the opposing party's VOIP telephone conversation;
Step 4, the side's that converses Executive Module and call the opposing party's Executive Module can be by the state of the execution result of instruction and telephone conversation (as present execution result be: being connected of successfully carried out conversing a side and the opposing party's that converses VOIP telephone conversation; The state of present telephone conversation is: connection) correspondence feeds back to call one side's user interface module, call the opposing party's user interface module respectively; The opposing party that simultaneously converses can feed back to calling party's number call the opposing party's user interface module and present to user; Call the opposing party's user just can know what who made a call to him;
Step 5, in the session establishment success of call one side and call the opposing party phone and while carrying out voice call, a side the Executive Module conversed obtains speech data and by G.711 from the sound card of client, G.723 or G.729 speech coding algorithm speech data is encoded and by PBX and TCP/IP network with the conventional VOIP voice transfer/control protocol of RTP/RTCP() protocol transmission is to call the opposing party's Executive Module, G.711 call the opposing party's Executive Module adopts, G.723 or G.729 the speech data of speech coding algorithm after to coding decoded and the sound card of the client by call the opposing party is play.Voice messaging hop count and voice messaging encoding and decoding number of times significantly reduce with respect to VOIP telephone relation under VDI environment in prior art like this, and the present invention installs VDI environment audio frequency mapping client-side program without the desktop of the client converse a side and call the opposing party, under the virtual desktop without converse a side and call the opposing party's service end, VDI environment audio frequency mapping serve end program is installed; Brought the optimization in performance to client, service end.
Wherein, described call one side and call the opposing party, also comprise voice call except carrying out: carry out address list information inquiry, obtain the information of address list and carry out instant message transmission etc.Wherein, inquire about the information of address list, the operation of obtaining the information of address list and transmitting message is the operation that belongs to non-speech data; , after the session establishment success of call one side and call the opposing party phone, inquire about the information of address list, when obtaining the information of address list or transmitting message operation; A side the user interface module conversed is carried out user's operation alternately through PBX and TCP/IP network and described call the opposing party's user interface module, call the opposing party by the response results of user operation (as: now to obtain the information of address list, the opposing party that converses can be by the message of address list through PBX and TCP/IP network-feedback to call one side) through PBX and TCP/IP network-feedback to call one side.
In a word, the present invention uses under the custom of VOIP phone not changing user, reduces voice messaging hop count and voice messaging encoding and decoding number of times in VOIP telephone relation process under VDI environment; Thereby reduce the conversation delay time, reduce voice distortion degree, improve speech quality.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (3)
1. under virtual desktop architecture VDI environment, in VOIP telephone relation, reduce a method for voice distortion, it is characterized in that: comprise the steps:
Step 1, at call one side's the virtual desktop of service end and call the opposing party's the virtual desktop of service end, all set up user interface module; At call one side's the desktop of client and the desktop of call the opposing party's client, all dispose Executive Module; Described user interface module has been used for mutual with user operation, transfers user's executable operations to operational order; Described Executive Module has been used for initiation, foundation, maintenance and the release of VOIP telephone conversation, and encoding and decoding speech and transmission control speech data;
Initiation, the telephone conversation that step 2, user are carried out telephone conversation at the virtual desktop of call one side's service end set up, telephone conversation keeps and during the releasing operation of telephone conversation, initiation instruction, telephone conversation that described call one side's user interface module is converted to corresponding telephone conversation by user's operation are set up releasing order of instruction, telephone conversation hold instruction and telephone conversation; And those instructions are given to described call one side's Executive Module by Internet Transmission;
Callee's number of the instruction that step 3, the side's that converses Executive Module is received and user's input carries out alternately through a PBX and call the opposing party by Session Initiation Protocol, completes initiation, foundation, maintenance and the release of call one side and call the opposing party's VOIP telephone conversation;
Step 4, the side's that converses Executive Module and call the opposing party's Executive Module can be by the state of the execution result of instruction and telephone conversation corresponding call one side's user interface module, call the opposing party's the user interface module of feeding back to respectively; The opposing party that simultaneously converses can feed back to calling party's number call the opposing party's user interface module and present to user;
Step 5, in the session establishment success of call one side and call the opposing party phone and while carrying out voice call, a side the Executive Module conversed obtains speech data and by G.711 from the sound card of client, G.723 or G.729 speech coding algorithm speech data is encoded and by PBX and TCP/IP network with RTP/RTCP protocol transmission the Executive Module to call the opposing party, G.711 call the opposing party's Executive Module adopts, G.723 or G.729 the speech data of speech coding algorithm after to coding decoded and the sound card of the client by call the opposing party is play.
2. under virtual desktop architecture VDI environment according to claim 1, in VOIP telephone relation, reduce the method for voice distortion, it is characterized in that: described call one side and call the opposing party, also comprise voice call except carrying out: carry out address list information inquiry, obtain the information of address list and carry out instant message transmission.
3. under virtual desktop architecture VDI environment according to claim 2, in VOIP telephone relation, reduce the method for voice distortion, it is characterized in that: after the session establishment success of call one side and call the opposing party phone, inquire about the information of address list, when obtaining the information of address list or transmitting message operation; A side the user interface module conversed is carried out user's operation alternately through PBX and TCP/IP network and described call the opposing party's user interface module, and call the opposing party gives through PBX and TCP/IP network-feedback the side that converses by the response results of user's operation.
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| US8984621B2 (en) * | 2010-02-27 | 2015-03-17 | Novell, Inc. | Techniques for secure access management in virtual environments |
| CN102232291B (en) * | 2011-05-25 | 2014-03-12 | 华为技术有限公司 | Method, system and device for communication |
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