CN101119566B - Module and method for implementing voice cache on mobile terminal - Google Patents
Module and method for implementing voice cache on mobile terminal Download PDFInfo
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- CN101119566B CN101119566B CN2007101522992A CN200710152299A CN101119566B CN 101119566 B CN101119566 B CN 101119566B CN 2007101522992 A CN2007101522992 A CN 2007101522992A CN 200710152299 A CN200710152299 A CN 200710152299A CN 101119566 B CN101119566 B CN 101119566B
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Abstract
The present invention discloses a module and a method for temporally depositing voice on the mobile terminal. The aforesaid module comprises a cache operation interface, a voice cache region, a voice input interface and a voice output interface. The module also comprises a user control interface and a user deployment engine list. Wherein, the cache region control interface can be applied and invoked by the upper layer calling of the mobile terminal, thereby entering into the processing flow of the voice cache module; the user deployment engine list is connected with the input interface and the cache region control interface; the voice cache region is connected with the cache region control interface, the voice output interface and the voice input interface to achieve the temporary depositing of the voice; the voice output interface and the voice input interface are connected with the bottom hardware processor to conduct the interaction of the voice data packets. The module and the method of the present invention can achieve the temporary depositing of the voice by changing the mobile terminal, without any change of the network device. Besides, the software can control the reading and writing operation of the voice flexibly, with comparatively high flexibility.
Description
Technical field
The present invention relates to the mobile terminal sound communication technology, in particular, is a kind of being used in inner module and the processing method that realizes speech buffer storage and postpone to play of portable terminal.
Background technology
Along with the high speed development of mobile communication technology in recent years, mobile phone further surpasses landline telephone in the global range.According to the data that announce the ITU website, world's telephone user number was 3,309,380,000 in 2005, and wherein mobile phone user's number is 2,137,070,000, and mobile phone has accounted for that the average growth rate per annum of Global Mobile Phone surpasses 20% since 64.58%, 2000 year of total call.And China has become the maximum Communications Market in the whole world, and national telephone subscriber's sum broke through 800,000,000 in 2006, and mobile phone user's sum has broken through 400,000,000.
Portable terminal becomes necessary tool in people's routine work and the life gradually.From the whole world, 3G begins to step into quick build phase, and the use amount of data service can progressively increase, and speech business is still the main source of professional income, and voice still are widely used as main business demand.Simultaneously, along with popularizing of portable terminal, people have been not content with basic voice call, have produced many specific demands based on voice communication.
The speech business that realizes on the portable terminal all is the real-time speech communicating business, to satisfy undelayed demand at present.As shown in Figure 1, on sending direction, the real-time Simulation voice output audio digital signals after the digital signal encoding device is handled from microphone sends becomes the standard digital speech code stream, in real time output again behind the mobile voice encoder; In like manner, also be to handle in real time at the receive direction voice.
Yet, under some special cases, do not wish that as the user voice that send hear the side of being received immediately, perhaps since the voice that certain particular restriction sends in real time can not hear the side of being received; These the time, with regard to being necessary the voice that produced are stored, and are play again, be i.e. the speech buffer storage function in the suitable moment.
Realize the speech buffer storage function in the communication, can realize by several different methods: the one, by the speech buffer storage device is set in the network equipment, by the caching process of network equipment control voice; The 2nd, by the hardware device of portable terminal, transform transceiver and realize caching process.
For above-mentioned first method,, certainly will increase the stability that a large amount of operation costs influence the network equipment simultaneously, so practicality is not strong owing to relate to the transformation of the network equipment; Second method has increased the complexity of terminal when increasing the terminal cost, may reduce the flexibility of speech processes.
Existing relevant patent documentation comprises: number of patent application is 00812019 Chinese patent application, and denomination of invention is " method and system of adaptive voice buffering ".This patent application mainly focuses on the implementation method of transmitter and receiver inside, and this application has the following disadvantages: one, this patent is to hang down the problem that voice postpone in order to solve the decline of link encoding rate change situation, and is not suitable for the particular demands of special generation voice latency.Two, in the realization of this patent, relate to the change of bottom hardware and processing method, strengthen the realization difficulty and reduced system flexibility and reliability.
Summary of the invention
The technical problem to be solved in the present invention is a defective such as overcome that existing voice caching technology hardware modification cost is big, the stability of a system and flexibility are lower, proposes a kind ofly can and be independent of the speech buffer storage module and the processing method of the network equipment in the common mobile terminal application.
For solving the problems of the technologies described above, the module that realizes speech buffer storage on portable terminal that the present invention proposes comprises:
The speech buffer storage district is in order to the speech data on buffer memory transmit path or the RX path;
The buffer area operation-interface, the softward interview interface in speech buffer storage district, in order to finishing buffer area application, releasing operation, and buffer area read-write pointer operation, with control buffer area read-write order;
Speech input interface comprises some communication interfaces, and in order to extract the speech data on transmit path or the RX path, the speech data of extraction writes the speech buffer storage district;
The voice output interface comprises some communication interfaces, and in order to the buffer memory speech data on output transmit path or the RX path, the buffer memory speech data reads from the speech buffer storage district.
Wherein, described buffer area operation-interface can supply the upper layer calling application call of portable terminal, thereby enters speech buffer storage resume module flow process; The speech buffer storage district is connected with buffer area operation-interface, voice output and input interface, realizes speech buffer storage; Voice output and input interface are connected with the bottom hardware processor, carry out the mutual of VoP.
Described speech buffer storage district can be by software or hard-wired some buffer areas, such as can comprising at the digital signal encoding device of portable terminal and first buffer area between the mobile voice encoder, and at the mobile voice decoder of portable terminal and second buffer area between the digital signal decoder.In addition, between the digital signal encoding device of portable terminal and digital signal decoder, increase a buffer area (the 3rd buffer area), can also realize the local terminal loopback; Between the mobile voice decoder of portable terminal and mobile voice encoder, increase a buffer area (the 4th buffer area), can also realize remote loopback.
The present invention realizes that on portable terminal the module of speech buffer storage can also comprise user control interface and user's allocation engine table.Wherein, user control interface is used to provide the peripheral operation interface, makes the user can be provided with and select to use the condition of speech buffer storage; User's allocation engine table is used to store user's configuration data, comprises whether using speech buffer storage and use occasion, and the setting of cache-time; User's allocation engine table is connected with the buffer area operation-interface with user control interface.Like this, can provide the function of revising relevant configuration, be user-friendly to the user.
The present invention realizes that on portable terminal the processing method of speech buffer storage may further comprise the steps:
Steps A. when audio call takes place the user, create the speech buffer storage district, then return the upper layer calling application as creating failure, otherwise operating procedure B;
Step B. starts phonetic entry/output interface, then discharges buffer area as starting failure, and return upper layer calling and use, otherwise operating procedure C;
The operation of step C. buffer area, control read-write pointer is realized the control to buffer area read-write order;
When step D. audio call finishes, remove and the release buffer area.
For the portable terminal that comprises user control interface and user's allocation engine table, the present invention realizes that the process method step of speech buffer storage is as follows:
Steps A. user control interface receives user's configuration data;
Step B. user control interface sends to user's allocation engine table to the configuration data of receiving;
When step C. as the user audio call took place, the upper layer calling application module of portable terminal was checked user's configuration data table, searches whether there is relevant allocation engine;
The allocation engine that step D. is if there is no relevant then returns the upper layer calling application module and continues to handle, otherwise execution in step E;
Step e. create the speech buffer storage district according to allocation engine, then return the upper layer calling application as creating failure, otherwise operating procedure F;
Step F. start phonetic entry/output interface, then discharge buffer area, return upper layer calling and use as starting failure, otherwise operating procedure G;
The operation of step G. buffer area, control read-write pointer is realized the control to buffer area read-write order;
When step H. audio call finishes, remove and the release buffer area.
Described method, application is provided with independently first buffer area and second buffer area on both transmit and receive direction, is used for realizing respectively sending the buffer delay of voice, and the buffer delay that receives voice.
Described method, application increases by the 3rd buffer area between the digital signal encoding device of portable terminal and digital signal decoder, uses first buffer area and the 3rd buffer area simultaneously, realizes the local terminal voice loopback, and sends voice latency; And application increases by the 4th buffer area between the mobile voice decoder of portable terminal and mobile voice encoder, uses second buffer area and the 4th buffer area simultaneously, realizes receiving the voice remote loopback, and receives voice latency.
Compared with prior art, module of the present invention and method only relate to the change of portable terminal, and the network equipment need not any change, just can realize the speech buffer storage function, and software can be controlled the read-write operation of voice flexibly simultaneously, has higher flexibility.The present invention has introduced speech buffer storage district, voice output/input interface, the caching process of speech data can be finished by software, guaranteed the cache capability of speech data on the one hand, need not to change bottom hardware on the other hand handles, only need a small amount of application layer software of changing common mobile terminal, specific function be can realize, the difficulty of system development and the flexibility that has improved system reduced.
In addition, the present invention also provides user control interface, makes the user can select allocation engine, and speech buffer storage entry condition, cache-time etc. are set, and makes the speech buffer storage function to be called as required, thereby has improved the flexibility of system design.
Description of drawings
Fig. 1 is the existing real-time voice transmission/reception schematic diagram that does not increase speech buffer storage;
Fig. 2 is the speech buffer storage module first example structure schematic diagram of the present invention;
Fig. 3 is the speech buffer storage module second example structure schematic diagram of the present invention;
Fig. 4 is that speech buffer storage module of the present invention realizes principle schematic;
Fig. 5 is that first kind of speech buffer storage of the present invention district uses schematic diagram;
Fig. 6 is that second kind of speech buffer storage of the present invention district uses schematic diagram;
Fig. 7 is the third use schematic diagram in speech buffer storage of the present invention district;
Fig. 8 is a speech buffer storage of the present invention district operation chart;
Fig. 9 is that the present invention utilizes cache module shown in Figure 3 to carry out the method flow diagram of data processing.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail.
Fig. 2 is the speech buffer storage module first example structure schematic diagram of the present invention.As shown in the figure, the present invention realizes that on portable terminal the module (being called for short " cache module ") of speech buffer storage comprises:
Speech buffer storage district 101 applies for when needing, uses up the dynamic memory zone that the back discharges, and is used to receive or send the buffer memory of voice.According to the applicable cases difference, in cache module, may there be one or more buffer areas.
Buffer area operation-interface 102 is mainly used in application, the release of buffer area, and the control of buffer area read-write pointer.According to packet from the upper layer calling application module of portable terminal, application speech buffer storage district 101, the pointer of control read-write in good time starts the buffer area read-write operation.
Speech input interface 103 is used for extracting VoP from the bottom hardware digital signal processor of portable terminal, extracts data and writes speech buffer storage district 101.
Voice output interface 104 is used for the VoP behind the bottom hardware digital signal processor output buffers of portable terminal, and the packet of output reads from speech buffer storage district 101.
Fig. 3 is the speech buffer storage module second example structure schematic diagram of the present invention.As shown in the figure, the difference of the present embodiment and first embodiment is that described cache module has increased user control interface 105 and user's allocation engine table 106.User control interface 105 is interfaces that user's configuration data enters cache module, only receives the configuration data of user to cache module, and it is mail to user's allocation engine table 106 stores; User's allocation engine table 106, be used for storing user configured buffer area data, can comprise some allocation engine records, data item such as every record comprises the buffer area type, whether starts mark, buffer area duration, the buffer area type comprises transmission, reception, local terminal loopback and remote loopback etc.User's allocation engine table 106 is connected with user control interface 105, buffer area operation-interface 102, and data are write by user control interface 105 in the table, reads for buffer area operation-interface 102 interfaces.Buffer area operation-interface 102, according to packet from the upper layer calling application module of portable terminal, entering user's allocation engine table 106 checks, if the engine clauses and subclauses that satisfy condition are arranged, then apply for speech buffer storage district 101, and control the read-write pointer according to engine conditions in good time, start the buffer area read-write operation.
Fig. 4 speech buffer storage module of the present invention realizes principle schematic.As shown in the figure, increase the speech buffer storage district in the digital signal coder/decoder of portable terminal and mobile voice coder/decoder, digital speech enters buffer area, and output again can realize sending or receiving the delay of voice behind buffer memory.
Fig. 5～7th, speech buffer storage of the present invention district uses schematic diagram.Under the different application situation, the user can adopt different speech buffer storage districts:
Fig. 5 is that first kind of speech buffer storage of the present invention district uses schematic diagram.As shown in the figure, independently buffer area is set on both transmit and receive direction, can realizes sending and receiving the buffer delay of voice respectively.First buffer area 1 and second buffer area 2 can exist simultaneously, can use simultaneously, also can use separately.
Fig. 6 is that second kind of speech buffer storage of the present invention district uses schematic diagram.As shown in the figure, between the digital signal encoding device of portable terminal and digital signal decoder the 3rd buffer area 3 is set, the voice of transmission directly return local terminal through the 3rd buffer area 3, can realize that local terminal sends the loopback and the delay of voice; Equally, between the mobile voice decoder of portable terminal and mobile voice encoder the 4th buffer area 4 is set, the voice of reception directly return transmitting terminal through the 4th buffer area 4, can realize the loopback and the delay of far-end speech.The 3rd buffer area 3 and the 4th buffer area 4 can exist simultaneously, but can only independently use.
Fig. 7 is the third use schematic diagram in speech buffer storage of the present invention district, is the combination of aforementioned two kinds of situations, utilizes buffer area to realize the buffer delay of voice loopback and transmission or reception voice simultaneously.As shown in the figure, only use the 3rd buffer area 3, realize the local terminal voice loopback, and the transmission voice transmit in real time; Use first buffer area 1 and the 3rd buffer area 3 simultaneously, realize the local terminal voice loopback, and send voice latency; Only use the 4th buffer area 4, realize receiving the voice remote loopback, and receive voice in real time; Use second buffer area 2 and the 4th buffer area 4 simultaneously, realize receiving the voice remote loopback, and receive voice latency.
Fig. 8 is a speech buffer storage of the present invention district operation chart.As shown in the figure, the read-write in speech buffer storage district is controlled with pointer independently respectively, and write pointer is used to specify the position that VoP writes buffer area, and read pointer is used to specify the position of voice packet to be read in buffer area.Initial and the renewal of read-write pointer is controlled by software.What provide among the figure is the fixing operation example of read-write pointer under the duration voice latency situation.
Fig. 9 is that the present invention utilizes cache module shown in Figure 3 to carry out the method flow diagram of data processing.As shown in the figure, for the audio call that enters speech buffer storage module of the present invention, its data processing method flow process is as follows:
Step 1: upper layer calling is used by the buffer area operation-interface, enters the speech buffer storage module, and checks user's allocation engine table according to call information, and whether search needs to start speech buffer storage;
Step 2: if in user's allocation engine table the clauses and subclauses that satisfy condition are arranged, then extract the buffer area configuration information in the clauses and subclauses, enter step 3; Otherwise change step 11 over to, return upper layer calling and use, to continue normal voice calls;
Step 3: according to buffer area configuration information application speech buffer storage district;
Step 4: judge whether success of buffer area application, as successfully entering step 5, otherwise change step 11 over to;
Step 5: start phonetic entry or output interface, speech input interface extracts VoP from the bottom hardware processor of portable terminal, and the voice output interface is exported the VoP through buffer memory in the bottom hardware processor of portable terminal;
Step 6: judge whether phonetic entry or output interface start success, as successfully entering step 7; Otherwise change step 10 over to;
Step 7: start the buffer area read or write, comprise control interface, in order to guarantee the continuity of output or input voice to read-write pointer order;
Step 8: according to the configuration information of buffer area in user's allocation engine table, judge whether to satisfy the condition that finishes buffer memory, finish buffer memory as need and then enter step 9, otherwise change step 7 over to;
Step 9: stop phonetic entry or output interface, finish speech buffer storage, recover the speech processes passage of acquiescence, promptly real-time voice is handled;
Step 10: discharge the speech buffer storage district;
Step 11: return upper layer calling and use, control is returned call applications.
Compared with prior art, module of the present invention and method only relate to the change of portable terminal, and the network equipment need not any change, just can realize the speech buffer storage function, and software can be controlled the read-write operation of voice flexibly simultaneously, has higher flexibility. The present invention has introduced speech buffer storage district, voice output/input interface, the caching process of speech data can be finished by software, guaranteed on the one hand the cache capability of speech data, need not on the other hand to change bottom hardware processes, only need a small amount of application layer software of changing common mobile terminal, specific function be can realize, the difficulty of system development and the flexibility that has improved system reduced.
Claims (10)
1. module that realizes speech buffer storage on portable terminal is characterized in that comprising:
Speech buffer storage district (101) is in order to the speech data on buffer memory transmit path or the RX path;
Buffer area operation-interface (102), in order to finishing buffer area application, releasing operation, and buffer area read-write pointer operation, with control buffer area read-write order;
Speech input interface (103) comprises some communication interfaces, and in order to extract the speech data on transmit path or the RX path, the speech data of extraction writes the speech buffer storage district;
Voice output interface (104) comprises some communication interfaces, and in order to the buffer memory speech data on output transmit path or the RX path, the buffer memory speech data reads from the speech buffer storage district;
Wherein, described buffer area operation-interface (102) can supply the upper layer calling application call of portable terminal, thereby enters speech buffer storage resume module flow process; Speech buffer storage district (101) is connected with buffer area operation-interface (102), speech input interface (103) and voice output interface (104), realizes speech buffer storage; Speech input interface (103) and voice output interface (104) are connected with the bottom hardware processor, carry out the mutual of VoP.
2. the module that realizes speech buffer storage on portable terminal according to claim 1 is characterized in that, described speech buffer storage district (101) is some buffer areas of being realized by software.
3. the module that realizes speech buffer storage on portable terminal according to claim 1 is characterized in that described speech buffer storage district (101) is by hard-wired some buffer areas.
4. according to claim 1 or the 2 or 3 described modules that on portable terminal, realize speech buffer storage, it is characterized in that also comprising user control interface (105) and user's allocation engine table (106);
Described user control interface (105) is used to provide the peripheral operation interface, makes the user can be provided with and select to use the condition of speech buffer storage; Described user's allocation engine table (106) is used to store user's configuration data, comprises whether using speech buffer storage and use occasion, and the setting of cache-time; User's allocation engine table (106) is connected with buffer area operation-interface (102) with user control interface (105).
5. the module that on portable terminal, realizes speech buffer storage according to claim 4, it is characterized in that, described speech buffer storage district (101) comprises at the digital signal encoding device of portable terminal and first buffer area (1) between the mobile voice encoder, and at the mobile voice decoder of portable terminal and second buffer area (2) between the digital signal decoder.
6. the module that on portable terminal, realizes speech buffer storage according to claim 5, it is characterized in that, described speech buffer storage district (101) also comprises at the digital signal encoding device of portable terminal and the 3rd buffer area (3) between the digital signal decoder, and at the mobile voice decoder of portable terminal and the 4th buffer area (4) between the mobile voice encoder.
7. method of utilizing claim 1 or 2 or 3 described modules to realize speech buffer storage on portable terminal is characterized in that may further comprise the steps:
Steps A. when audio call takes place the user, create the speech buffer storage district, then return the upper layer calling application as creating failure, otherwise operating procedure B;
Step B. starts phonetic entry/output interface, then discharges buffer area as starting failure, and return upper layer calling and use, otherwise operating procedure C;
The operation of step C. buffer area, control read-write pointer is realized the control to buffer area read-write order;
When step D. audio call finishes, remove and the release buffer area.
8. method of utilizing the described module of claim 4 to realize speech buffer storage on portable terminal is characterized in that may further comprise the steps:
Steps A. user control interface receives user's configuration data;
Step B. user control interface sends to user's allocation engine table to the configuration data of receiving;
When step C. as the user audio call took place, the upper layer calling application module of portable terminal was checked user's configuration data table, searches whether there is relevant allocation engine;
The allocation engine that step D. is if there is no relevant then returns the upper layer calling application module and continues to handle, otherwise execution in step E;
Step e. create the speech buffer storage district according to allocation engine, then return the upper layer calling application as creating failure, otherwise operating procedure F;
Step F. start phonetic entry and output interface, then discharge buffer area, return upper layer calling and use as starting failure, otherwise operating procedure G;
The operation of step G. buffer area, control read-write pointer is realized the control to buffer area read-write order;
When step H. audio call finishes, remove and the release buffer area.
9. the method that on portable terminal, realizes speech buffer storage according to claim 8, it is characterized in that, application is provided with independently first buffer area (1) and second buffer area (2) on both transmit and receive direction, be used for realizing respectively sending the buffer delay of voice, and the buffer delay that receives voice.
10. the method that on portable terminal, realizes speech buffer storage according to claim 9, it is characterized in that, application increases the 3rd buffer area (3) between the digital signal encoding device of portable terminal and digital signal decoder, use first buffer area (1) and the 3rd buffer area (3) simultaneously, realize the local terminal voice loopback, and send voice latency;
Application increases the 4th buffer area (4) between the mobile voice decoder of portable terminal and mobile voice encoder, uses second buffer area (2) and the 4th buffer area (4) simultaneously, realizes receiving the voice remote loopback, and the reception voice latency.
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| CN105897666A (en) * | 2015-10-08 | 2016-08-24 | 乐视致新电子科技（天津）有限公司 | Real time voice receiving device and delay reduction method for real time voice conversations |
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| CN1694470A (en) * | 2004-04-29 | 2005-11-09 | 乐金电子(中国)研究开发中心有限公司 | Voice input buffer storage device and method of radio communication terminal |
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| CN1694470A (en) * | 2004-04-29 | 2005-11-09 | 乐金电子(中国)研究开发中心有限公司 | Voice input buffer storage device and method of radio communication terminal |
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