CN113286042B - System and method capable of customizing call background sound - Google Patents
System and method capable of customizing call background sound Download PDFInfo
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- CN113286042B CN113286042B CN202110540118.3A CN202110540118A CN113286042B CN 113286042 B CN113286042 B CN 113286042B CN 202110540118 A CN202110540118 A CN 202110540118A CN 113286042 B CN113286042 B CN 113286042B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
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- H04M—TELEPHONIC COMMUNICATION
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Abstract
The invention relates to a system and a method for customizing call background sound, wherein the system comprises the following steps: the system comprises an xSCF device, a service acceptance IT system, a background sound customization application server and a call terminal; the xCSCF equipment is used for constructing an IMS core network; the business acceptance IT system is connected with the xSCF equipment, and is used for accepting the call background tone customization service of the user, generating business trigger condition information and triggering the call background tone customization service; the background sound customizing application server and the multiple pairs of call terminals are respectively interconnected with the xSCF equipment, the background sound customizing application server comprises a signaling media connection module and multiple pairs of voice background sound customizing processing modules, and the signaling media connection module is used for promoting the pair of voice background sound customizing processing modules to butt joint two voice speech paths of a calling party and a called party so as to construct a two-way voice speech path; the voice background sound customization processing module is used for receiving a customization instruction and adding or modifying the conversation background sound for the calling party or the called party or both parties. The system can effectively improve the flexibility of background sound customization.
Description
Technical Field
The invention relates to the field of call background sound customization, in particular to a system and a method capable of customizing call background sound.
Background
With the development of science and technology and the improvement of living standard, a call terminal such as a mobile phone or a fixed telephone is used for making and receiving calls, the simple call function of the call terminal cannot meet the requirements of people, the use experience of a user can be improved by the higher-level call customization service, for example, the customized background music can be played for the user while the user makes and receives calls, and the call experience of the user can be better.
However, most of the existing systems for customizing background sounds for a call use a multimedia background sound center-based method, and establish a three-party conference with a calling party and a called party through the multimedia background sound center, so as to provide multimedia background music for both parties of the call. However, although the method realizes the customization of the background sound of the call through the communication network, a third party needs to be added for the call in the call process, which is similar to a way of a teleconference, so that the privacy of both parties of the call is at risk of disclosure, the security is poor, and only the sound stored in the third party, namely the multimedia background sound center, can be added, the voices of both parties of the call cannot be processed, the customization of only the background sound of one party cannot be realized, and the flexibility of the customization is also poor.
Therefore, there is a need for a system and a method for customizing a call background sound to improve the flexibility of customizing the call background sound, and solve the problems that the call background sound customizing system in the prior art cannot customize a calling party or a called party independently and the customizing service is inflexible.
Disclosure of Invention
The invention aims to provide a system and a method for customizing conversation background sound, which can flexibly customize the conversation background sound between a calling party and a called party, can independently customize one of the calling party and the called party, and can flexibly add and modify the conversation background sound, thereby effectively improving the flexibility of customizing the conversation background sound and improving the use experience of the calling party and the called party.
In order to achieve the purpose, the invention provides the following scheme:
a system for customizing a call background sound, comprising: the system comprises an xSCF device, a service acceptance IT system, a background sound customization application server and a plurality of pairs of call terminals;
the xCSCF equipment is used for constructing an IMS core network;
the output end of the service acceptance IT system is wirelessly connected with the xSCF equipment through the IMS core network, and the service acceptance IT system is used for receiving and accepting a call background tone customization service of a user, generating service triggering condition information, downloading the service triggering condition information to the xSCF equipment and triggering the call background tone customization service;
the background sound customizing application server and the plurality of pairs of call terminals are wirelessly interconnected with the xSCF equipment through the IMS core network, and the call terminals are used for providing call service and call background sound customizing service for users;
the background voice customization application server comprises a signaling media connection module and a plurality of pairs of voice background voice customization processing modules, wherein the signaling media connection module and the plurality of pairs of voice background voice customization processing modules are wirelessly interconnected with the xCSCF equipment through the IMS core network, and each pair of voice background voice customization processing modules are interconnected and intercommunicated;
the signaling media connection module is used for receiving a call signaling of a calling call terminal forwarded by the xCSCF equipment, respectively establishing two voice speech paths for the calling call terminal and a corresponding called call terminal, and simultaneously starting a pair of voice background tone customization processing modules to respectively butt joint the two voice speech paths to establish a bidirectional voice speech path; the voice background sound customizing processing module is used for respectively receiving background sound customizing instructions sent by the calling call terminal and/or the called call terminal, and adding call background sounds or modifying call background sounds for the calling call terminal and/or the called call terminal.
Optionally, the background sound customizing instruction includes a digital dialing customizing instruction and/or a voice customizing instruction, the digital dialing customizing instruction is used for customizing the background sound for the user through a specific dialing sequence of a numeric keyboard on the call terminal, and the voice customizing instruction is used for directly sending the voice instruction to the voice background sound customizing processing module along with the voice call path for customizing the background sound for the user.
Optionally, the voice background tone customization processing module analyzes corresponding key digits by receiving and identifying DTMF tones sent by pressing each key by the user, so as to identify background tone customization instructions corresponding to different specific dialing sequences.
Optionally, a background sound customizing instruction corresponding table is stored in the background sound customizing application server, the background sound customizing instruction corresponding table includes a corresponding binding relationship between a background sound customizing instruction preset by a user and a single key, and the voice background sound customizing processing module receives a DTMF tone sent by the single key, automatically queries the background sound customizing instruction corresponding table, and identifies the background sound customizing instruction bound with the key.
Optionally, when the speech background sound customization processing module adds a speech background sound to the calling party call terminal and/or the called party call terminal, the speech background sound customization processing module performs a sound mixing algorithm processing on an original speech sound stream of a user and the added background sound, and then sends the original speech sound stream and the added background sound to the calling party call terminal and/or the called party call terminal.
Optionally, the mixing algorithm is one or a combination of a linear superposition mixing method, a normalized mixing method, and/or a resampling mixing method.
Optionally, the modifying the call background sound includes eliminating noise, changing voice sound and beautifying voice.
Optionally, the noise elimination includes eliminating own noise, eliminating noise of the other party and eliminating noise of both parties, when a user sends a noise elimination instruction through the call terminal, the speech background noise customization processing module performs signal filtering processing on an original speech stream and then sends the original speech stream to the calling call terminal and/or the called call terminal.
Optionally, the call terminal includes a fixed telephone and a mobile call terminal, and the numeric keyboard includes a physical keyboard and a virtual keyboard.
The invention also provides a customizing method capable of customizing the background sound of the call, which comprises the following steps:
in an IMS core network built based on an xSCF device, a background tone customization application server receives a call signaling of a calling call terminal forwarded by the xSCF device through a signaling media connection module, wherein the call signaling is sent by the calling call terminal after a service acceptance IT system downloads service triggering condition information for the xSCF device after call background tone customization service acceptance and triggers call background tone customization service of the call terminal;
the background sound customizing application server controls the signaling media connection module to respectively establish two voice speech paths for the calling call terminal and the corresponding called call terminal, and controls a pair of voice background sound customizing processing modules to respectively butt-connect the two voice speech paths between the calling call terminal and the called call terminal, so as to establish a bidirectional voice speech path;
the background sound customization application server receives a background sound customization instruction sent by the calling call terminal and/or the called call terminal through the voice background sound customization processing module, and controls the voice background sound customization processing module to add a call background sound or modify the call background sound to the calling call terminal and/or the called call terminal.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the invention provides a system and a method for customizing call background sound, which can flexibly customize the call background sound for a calling party or a called party or both parties, comprise customization services such as adding call background sound and modifying call background sound, realize flexible call background sound customization and are widely suitable for different service scenes. And the customization of the call background sound is realized by completely depending on the control function of the IMS communication network on the signaling and the speech path, and a user can flexibly send various background sound customization instructions to the system, so that the opening, closing and modification of the call background sound customization function are realized, the flexibility of customizing the call background sound is improved, and the use experience of both parties of the call is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a system for customizing a call background sound according to embodiment 1 of the present invention;
fig. 2 is a schematic flowchart of a method for customizing a background sound of a call according to embodiment 2 of the present invention.
Description of reference numerals:
the system comprises 1-xCSCF equipment, a 2-service acceptance IT system, a 3-background sound customization application server, a 301-signaling media connection module, a 302-voice background sound customization processing module, a 4-call terminal, a 401-calling call terminal and a 402-called call terminal.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The invention aims to provide a system and a method for customizing background sound of a call, which can flexibly customize the background sound of the call between a calling party and a called party when the call is dialed in an IMS communication network, can independently customize one of the calling party and the called party, and can flexibly control the on and off of various background sound customizing functions through digital keyboard dialing or voice passwords, thereby effectively improving the flexibility of customizing the background sound of the call and improving the use experience of the two parties of the call.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description thereof.
Example 1
As shown in fig. 1, the present embodiment proposes a system capable of customizing background voice of a call, which specifically includes an xCSCF device 1, a service acceptance IT system 2, a background voice customization application server 3, and a plurality of pairs of call terminals 4.
The xCSCF device 1 is used as a communication hub, and is mainly used to construct an IMS core network, and perform communication data interaction with the call terminal 4 and the background tone customization application server 3, respectively. The IMS core network, i.e., an IP Multimedia system network (IP Multimedia Subsystem), is mainly composed of CSCF devices with different purposes, which are collectively referred to as xCSCF device 1. The IMS core network includes various xCSCF core network elements, and provides functions of routing, controlling, and service triggering of the LTE VoIP voice service for the call terminal 4 using the IMS core network. In terms of radio access technology, the IMS core network may have access to WLAN in addition to GSM/GPRS and WCDMA. In addition, the LAN and xDSL access technologies of the fixed network can also be accessed into the IMS core network, and therefore, the present embodiment can easily implement the voice call function and other communication functions of various call terminals 4 such as mobile phones and fixed phones by using the IMS core network.
The output end of the service acceptance IT system 2 is wirelessly connected with the xCSCF device 1 through the IMS core network, and the service acceptance IT system 2 is configured to receive and accept a call background tone customization service of a user, generate service trigger condition information iFC, and download the service trigger condition information iFC to the xCSCF device 1, thereby providing and triggering a call background tone customization service for the call terminal 4. The service triggering condition information iFC is a segment of communication configuration file, all communication services to be processed in the IMS core network have specific service triggering condition information iFC, and different communication services are activated and triggered by different service triggering condition information iFC.
It should be noted that, in this embodiment, the service for customizing the call background sound through the call terminal 4 is implemented by using the call terminal 4 to perform information interaction with the background sound customization application server 3 through the xCSCF device 1 on the basis of the IMS core network, so as to implement flexible customization of the call background sound of various call terminals 4. The communication service of the call background tone is generally a service acceptance instruction sent by a network operator to the service acceptance IT system 2, and service triggering condition information iFC is transmitted to the xCSCF device 1 through the service acceptance IT system 2, so as to open and trigger the service of call background tone customization for the call terminal 4 of the user.
The background tone customization application server 3 and the plurality of pairs of call terminals 4 are wirelessly interconnected with the xCSCF device 1 through the IMS core network, and the call terminals 4 are used for providing call services and call background tone customization services for users; the background sound customization application server 3 comprises a signaling media connection module 301 and a plurality of pairs of speech background sound customization processing modules 302, wherein the signaling media connection module 301 and the plurality of pairs of speech background sound customization processing modules 302 are wirelessly interconnected with the xCSCF device 1 through the IMS core network, and each pair of speech background sound customization processing modules 302 are also interconnected;
in the invention, the background sound customization application server 3 is a core structure, and interacts with each call terminal 4 through an IMS core network in the aspects of signaling protocol, original voice media, service instructions, processed voice media and the like. The background sound customizing application server 3 dynamically enables the two voice background sound customizing processing modules 302 for each connected voice speech channel, and the voice background sound customizing processing module 302 is closed when the call is ended.
The signaling media connection module 301 is configured to receive a call signaling of a calling call terminal 401 forwarded by the xCSCF device 1, establish two voice speech paths for the calling call terminal 401 and a corresponding called call terminal 402, simultaneously start a pair of the voice background tone customization processing modules 302, and respectively interface the two voice speech paths to establish a bidirectional voice speech path. And, the corresponding buffer resources on the background sound customizing application server 3 are also started at the same time, so as to reserve enough buffer space for the bidirectional voice speech path.
As shown in fig. 1, one speech background sound customizing processing module 302 of a pair of speech background sound customizing processing modules 302 corresponds to a calling call terminal 401, and the other speech background sound customizing processing module 302 corresponds to a called call terminal 402, so as to form two pairs of intercommunicated and interconnected speech background sound customizing processing modules 302 and call terminals 4, the two speech background sound customizing processing modules 302 are also connected with each other and intercommunicate speech bidirectionally, and the speech background sound customizing processing module 302 processes a customizing instruction through a speech background sound customizing processing program, and establishes a bidirectional speech path of "calling call terminal 401< - > speech background sound customizing processing program a < - > speech background sound customizing processing program B < - > called call terminal 402". After the bidirectional voice speech path is established, the two voice background sound customization processing modules 302 in the background sound customization application server 3 for the speech path wait for the call voice of the user and the background sound customization instruction transmitted along with the voice speech path.
The background tone customizing instruction includes two forms of a digit dialing customizing instruction and/or a voice customizing instruction, the digit dialing customizing instruction is the user to customize the background tone through a specific dialing sequence of a numeric keyboard on the talking terminal 4, namely the specific numeric keyboard dialing sequence, and the numeric keyboard dialing sequence is identified through a DTMF tone of each numeric key, for example, the user dials out of "#0001". The DTMF (Dual Tone Multi Frequency) Tone represents a Dual Tone multifrequency Tone, and is composed of a high Frequency group and a low Frequency group, wherein the high Frequency group and the low Frequency group respectively comprise 4 frequencies, and a high Frequency signal and a low Frequency signal are superposed to form a combined signal which represents a key number. The voice customizing instruction is a voice instruction sent by the user to the voice background sound customizing processing module 302 directly along with the voice speech path for background sound customization, that is, a specific voice instruction, for example, the user says "background sound customization-eliminates the noise of the own party, the other party or both parties" to the call terminal 4.
The communication terminal 4 is divided into a calling communication terminal 401 and a called communication terminal 402, in this embodiment, one party of the communication terminal 4 that actively sends a call instruction is the calling communication terminal 401, and the other party that answers the call is the called communication terminal 402, and the communication terminal 4 includes a fixed telephone and various mobile communication terminals 4, such as a mobile phone, a communication watch, a communication tablet, and the like, the numeric keyboard may be a physical keyboard or a virtual keyboard, the physical keyboard mainly exists on the fixed telephone, some mobile phones further include a physical keyboard, and the virtual keyboard mainly refers to a virtual numeric keyboard popped up on display screens of the various communication terminals 4.
The voice background tone customizing processing module 302 is configured to receive a background tone customizing instruction sent by the calling party calling terminal 401 and/or the called party calling terminal 402, respectively, and start a function of adding a call background tone or modifying the call background tone in a one-way (to one of the calling party calling terminal 401 or the called party calling terminal 402) or two-way (to both of the calling party calling terminal 401 and the called party calling terminal 402), so that flexibility of customization is effectively improved.
If the number dialing customizing instruction mode is adopted, the voice background tone customizing processing module 302 analyzes the corresponding key number by receiving and identifying the DTMF tone sent by pressing each key by the user, so as to identify the background tone customizing instruction corresponding to different dialing sequences. If the voice customizing instruction mode is adopted, the voice background sound customizing processing module 302 directly recognizes the voice instruction spoken by the user by using the voice recognition function, and performs background sound customizing processing according to the voice instruction of the user.
In addition, in this embodiment, a background sound customizing instruction corresponding table is further stored in the background sound customizing application server 3, the background sound customizing instruction corresponding table includes a corresponding binding relationship between a background sound customizing instruction preset by a user and a single key, after receiving a DTMF tone sent by the single key, the voice background sound customizing processing module 302 automatically queries the background sound customizing instruction corresponding table, identifies the background sound customizing instruction bound with the key, and realizes that a customizing instruction is issued in a shortcut dialing manner, so that the user can perform shortcut key setting according to the preference and habit of the user, and the flexibility is strong.
It should be noted that fig. 1 only illustrates the process of customizing and interacting the background voice of a pair of voice background voice customizing processing modules 302 and a pair of call terminals 4 (i.e. a pair of calling call terminals 401 and a pair of called call terminals 402), actually, the call terminals 4 include a plurality of pairs of calling call terminals 401 and called call terminals 402, the background voice customizing application server 3 is also provided with a plurality of pairs of voice background voice customizing processing modules 302, when other calling call terminals 401 and called call terminals 402 open the background voice customizing service and join the IMS core network, the system will automatically start more pairs of voice background voice customizing processing modules 302 to join the IMS core network, and perform background voice customizing and interacting with these call terminals 4 that have just joined the IMS core network, so as to construct a bidirectional voice speech path. Therefore, the speech background tone customization processing module 302 and the call terminal 4 are only statically located in the IMS core network, and when the call background tone customization service is triggered, dynamic interactive connection is performed, so that a bidirectional speech channel based on the calling call terminal 401 and the called call terminal 402 is formed.
It should be noted that, in this embodiment, the customization is mainly performed on two aspects of adding a call background sound and modifying a call background sound, when the speech background sound customization processing module 302 adds a call background sound to the calling call terminal 401 and/or the called call terminal 402, the speech background sound customization processing module 302 performs a sound mixing algorithm processing on an original speech sound stream of a user and the added background sound, and then sends the original speech sound stream and the added background sound to the calling call terminal 401 and/or the called call terminal 402. Briefly, the audio mixing algorithm cuts the original voice stream and the background voice stream according to a fixed time period, for example, sequence data of a time period of 1 second, performs audio mixing algorithm processing on each segment of data, and then splices the data into complete data after audio mixing. The mixing algorithm is one or a combination of a plurality of linear superposition mixing method, a normalization mixing method and/or a resampling mixing method, and the algorithm is a conventional algorithm, so that details are not repeated in the embodiment.
The modifying the call background sound comprises eliminating noise, changing voice, beautifying voice and the like. Wherein, the voice change is to change the tone of the call voice of the user. The voice beautification is to beautify the conversation sound of the user. The voice changing and voice beautifying functions are realized by the voice background sound customizing and processing module 302 after processing by adopting a voice changing algorithm and a voice beautifying algorithm, and the same as a sound mixing algorithm, a linear superposition sound mixing method, a normalization sound mixing method and/or a resampling sound mixing method are also adopted.
The noise elimination includes eliminating own noise, eliminating noise of the other party and eliminating noise of both parties, when a user sends a noise elimination instruction through the call terminal 4, the speech background sound customization processing module 302 performs signal filtering processing on an original voice stream and then sends the original voice stream to the calling call terminal 401 and/or the called call terminal 402. The noise elimination is to cut the original voice stream and the background voice stream according to a fixed time period, for example, sequence data of a 1 second time period, perform noise elimination algorithm processing on each segment of data, and then splice into complete data after the noise elimination. The noise elimination algorithm includes algorithms such as a spectrum subtraction algorithm and a short-time spectrum analysis, which are not described herein again.
In this embodiment, when the user customizes the call background sound through the numeric keypad of the call terminal 4, the user presses a specific dialing sequence on the numeric keypad of the call terminal 4, and sends a background sound customization instruction to the speech background sound customization processing module 302 of the background sound customization application server 3 along with the speech voice. For example, "#10001" instruction, the user requests to send the light music of his voice superimposition number 0001 to the other party; the instruction of "#20001" requires the user to send the light music of his voice superimposition number 0001 to the other party and simultaneously requires the light music of the voice superimposition number 0001 of the other party to the user. The voice background tone customization processing module 302 analyzes the digital dialing sequence dialed by the user by identifying the DTMF tones sent by the keys, so as to execute the corresponding background tone customization instruction. When adding the background sound, the speech background sound customization processing module 302 needs to perform a sound mixing algorithm on the original speech stream and the added background sound stream and then send the speech stream and the added background sound stream to the call terminal 4 of the user.
Moreover, the user can also bind the commonly used background sound customizing instruction to the shortcut number key, for example, bind the background light music instruction "#10001" with the voice overlay number 0001 to the number key "1", and after the voice background sound customizing processing module 302 receives the DTMF tone sent by the number key "1", automatically query the background sound customizing instruction corresponding table, identify the background sound customizing instruction "#10001" bound with the number key "1" and perform corresponding processing.
When the user customizes the call background sound through the voice instruction, the call terminal 4 sends the specific voice instruction spoken by the user to the voice background sound customization processing module 302 of the background sound customization application server 3, for example, when the user speaks "background sound customization-both-party noise elimination", the voice background sound customization processing module 302 performs noise elimination processing such as signal filtering on the original voice stream by using a noise elimination algorithm, and then sends the processed voice background sound to the other party.
When the user needs to close the background sound customizing function, a digital dialing or voice closing instruction is also sent, for example, the digital dialing instruction is "#10000", the voice instruction is "stop background sound customizing", and after receiving the instruction, the voice background sound customizing processing module 302 closes the background sound customizing function.
It should be noted that, the specific contents of the number dialing customizing instruction and the voice customizing instruction are not limited in this embodiment, the instructions in this embodiment are only examples, and these instructions are not unique and should not be taken as limitations to the scope of the present invention, and other dialing sequences or voice instructions may be set by themselves according to the actual situations. In addition, the present embodiment also does not limit the form of the background sound for the call, the light music mentioned above is also an example, and other background sounds in various forms such as heavy music, piano music, specific popular songs, etc. may be provided to the user after being loaded and processed in the network through the speech background sound customization processing module 302. It should be noted that any design regarding the specific contents of the digital dialing customized instruction and the voice customized instruction and the specific form of the call background sound should be within the protection scope of the present invention.
The invention provides a system for customizing call background sound, which can flexibly realize various service scenes for customizing background sound, can add the same or different background sound to a calling party or a called party and both parties simultaneously, can process the real background sound of the calling party and the called party and both parties, such as eliminating background noise and the like, and realizes comprehensive and flexible call background sound customization processing function. Moreover, the adding and modifying of the call background sound can be generally realized on the common call terminal 4 (including common fixed calls) by completely depending on the control function of the communication network to the signaling and the call path. The opening and closing of various background sound customization functions can be flexibly controlled through the dialing or the voice of a numeric keyboard on the call terminal 4, the use is convenient, the functions are simple, the flexibility of call background sound customization is effectively improved, and the problems that a call background sound customization system cannot customize a calling party or a called party independently and customization service is inflexible in the prior art are solved.
Example 2
The embodiment provides a method for customizing a call background sound, which is based on the system for customizing the call background sound in embodiment 1, and the method comprises the following steps:
step S1, under an IMS core network built based on an xSCF device 1, a background tone customization application server 3 receives a call signaling of a calling call terminal 401 forwarded by the xSCF device 1 through a signaling media connection module 301, wherein the call signaling is sent by the calling call terminal 401 after a service acceptance IT system 2 downloads service triggering condition information for the xSCF device 1 after call background tone customization service acceptance and triggers a call background tone customization service of a call terminal 4;
step S2, the background sound customization application server 3 controls the signaling media connection module 301 to establish two voice speech paths for the calling call terminal 401 and the corresponding called call terminal 402, and controls a pair of voice background sound customization processing modules 302 to connect the two voice speech paths between the calling call terminal 401 and the called call terminal 402, respectively, so as to construct a bidirectional voice speech path;
step S3, the background sound customizing application server 3 receives a background sound customizing instruction sent by the calling party calling terminal 401 and/or the called party calling terminal 402 through the voice background sound customizing processing module 302, and controls the voice background sound customizing processing module 302 to add a call background sound to the calling party calling terminal 401 and/or the called party calling terminal 402 or modify a call background sound.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above description of the embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (7)
1. A system for customizing a background sound of a call, comprising: the system comprises an xSCF device, a service acceptance IT system, a background sound customization application server and a plurality of pairs of call terminals;
the xCSCF equipment is used for constructing an IMS core network;
the output end of the service acceptance IT system is wirelessly connected with the xSCF equipment through the IMS core network, and the service acceptance IT system is used for receiving and accepting a call background tone customization service of a user, generating service triggering condition information, downloading the service triggering condition information to the xSCF equipment and triggering the call background tone customization service;
the background sound customization application server and the plurality of pairs of call terminals are wirelessly interconnected with the xSCF equipment through the IMS core network, and the call terminals are used for providing call service and call background sound customization service for users;
the background sound customizing application server comprises a signaling media connection module and a plurality of pairs of voice background sound customizing processing modules, wherein the signaling media connection module and the plurality of pairs of voice background sound customizing processing modules are wirelessly interconnected with the xCSCF equipment through the IMS core network, and each pair of voice background sound customizing processing modules are interconnected and intercommunicated;
the signaling media connection module is used for receiving a call signaling of a calling call terminal forwarded by the xCSCF equipment, respectively establishing two voice speech paths for the calling call terminal and a corresponding called call terminal, and simultaneously starting a pair of voice background tone customization processing modules to respectively butt joint the two voice speech paths to establish a bidirectional voice speech path; the voice background sound customizing processing module is used for respectively receiving background sound customizing instructions sent by the calling call terminal and/or the called call terminal, and adding call background sound or modifying call background sound for the calling call terminal and/or the called call terminal;
the background sound customizing instruction comprises a digital dialing customizing instruction and/or a voice customizing instruction, the digital dialing customizing instruction is used for customizing background sound for a user through a specific dialing sequence of a numeric keyboard on the call terminal, and the voice customizing instruction is used for customizing background sound for the user by directly sending a voice instruction to the voice background sound customizing processing module along with a voice speech path;
the voice background tone customization processing module analyzes corresponding key digits by receiving and identifying DTMF tones sent by pressing each key by a user, so that background tone customization instructions corresponding to different specific dialing sequences are identified;
the background sound customizing application server is internally stored with a background sound customizing instruction corresponding table which comprises a corresponding binding relationship between a background sound customizing instruction preset by a user and a single key, and the voice background sound customizing processing module receives a DTMF (dual tone multifrequency) sound sent by the single key, automatically inquires the background sound customizing instruction corresponding table and identifies the background sound customizing instruction bound with the key;
one voice background sound customizing processing module in the pair of voice background sound customizing processing modules corresponds to a calling communication terminal, and the other voice background sound customizing processing module corresponds to a called communication terminal, so that two pairs of intercommunicated and interconnected voice background sound customizing processing modules and communication terminals are formed, the two voice background sound customizing processing modules are also mutually connected and bidirectionally intercommunicated with voice, the voice background sound customizing processing modules process customizing instructions through a voice background sound customizing processing program, and a bidirectional voice speech path of a calling communication terminal A < - > voice background sound customizing processing program B < - > called communication terminal is established; after the bidirectional voice speech path is established, the background sound customizing application server waits for the call speech of the user and the background sound customizing instruction transmitted along with the voice speech path by aiming at the two voice background sound customizing processing modules of the speech path.
2. The system for customizing call background sound according to claim 1, wherein when the speech background sound customization processing module adds a call background sound to the calling call terminal and/or the called call terminal, the speech background sound customization processing module performs a sound mixing algorithm on an original speech stream of a user and the added background sound, and then sends the original speech stream and the added background sound to the calling call terminal and/or the called call terminal.
3. The system for customizing call background sound according to claim 2, wherein the mixing algorithm is one or a combination of linear superposition mixing, normalized mixing and/or resampling mixing.
4. The system for customizing call background sound according to claim 1, wherein the modifying call background sound comprises removing noise, voice morphing, and voice beautification.
5. The system for customizing background sounds of a call according to claim 4, wherein the noise elimination comprises eliminating noise of a self-party, noise of an opposite party and noise of both parties, and when a user sends a noise elimination instruction through the call terminal, the voice background sound customization processing module performs signal filtering processing on an original voice stream and then sends the processed voice stream to the calling call terminal and/or the called call terminal.
6. The system for customizing call background sound of claim 1, wherein the call terminal comprises a fixed telephone and a mobile call terminal, and the numeric keypad comprises a physical keypad and a virtual keypad.
7. A method for customizing a system for customizing a call background sound according to claim 1, comprising the steps of:
in an IMS core network built based on an xSCF device, a background tone customization application server receives a call signaling of a calling call terminal forwarded by the xSCF device through a signaling media connection module, wherein the call signaling is sent by the calling call terminal after a service acceptance IT system downloads service triggering condition information for the xSCF device after call background tone customization service acceptance and triggers call background tone customization service of the call terminal;
the background sound customizing application server controls the signaling media connection module to respectively establish two voice speech paths for the calling call terminal and the corresponding called call terminal, and controls a pair of voice background sound customizing processing modules to respectively butt-connect the two voice speech paths between the calling call terminal and the called call terminal, so as to establish a bidirectional voice speech path;
the background sound customizing application server receives a background sound customizing instruction sent by the calling call terminal and/or the called call terminal through the voice background sound customizing processing module, and controls the voice background sound customizing processing module to add a call background sound to the calling call terminal and/or the called call terminal or modify the call background sound;
the background sound customizing instruction comprises a digital dialing customizing instruction and/or a voice customizing instruction, the digital dialing customizing instruction is used for customizing background sound for a user through a specific dialing sequence of a numeric keyboard on the call terminal, and the voice customizing instruction is used for customizing background sound for the user by directly sending a voice instruction to the voice background sound customizing processing module along with a voice speech path;
the voice background tone customization processing module analyzes corresponding key digits by receiving and identifying DTMF tones sent by pressing each key by a user, so that background tone customization instructions corresponding to different specific dialing sequences are identified;
the background sound customizing application server is internally stored with a background sound customizing instruction corresponding table, the background sound customizing instruction corresponding table comprises a corresponding binding relation between a background sound customizing instruction preset by a user and a single key, and the voice background sound customizing processing module receives a DTMF sound sent by the single key, automatically inquires the background sound customizing instruction corresponding table and identifies the background sound customizing instruction bound with the key;
one voice background sound customizing processing module in the pair of voice background sound customizing processing modules corresponds to a calling communication terminal, and the other voice background sound customizing processing module corresponds to a called communication terminal, so that two pairs of intercommunicated and interconnected voice background sound customizing processing modules and communication terminals are formed, the two voice background sound customizing processing modules are also mutually connected and bidirectionally intercommunicated with voice, the voice background sound customizing processing modules process customizing instructions through a voice background sound customizing processing program, and a bidirectional voice speech path of a calling communication terminal A < - > voice background sound customizing processing program B < - > called communication terminal is established; after the bidirectional voice speech channel is established, the background sound customization application server waits for the call speech of the user and the background sound customization instruction transmitted along with the voice speech channel for the two voice background sound customization processing modules of the speech channel.
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