CN1832025A - Audio playing method and system in game of mobile phone - Google Patents
Audio playing method and system in game of mobile phone Download PDFInfo
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- CN1832025A CN1832025A CNA2006100724263A CN200610072426A CN1832025A CN 1832025 A CN1832025 A CN 1832025A CN A2006100724263 A CNA2006100724263 A CN A2006100724263A CN 200610072426 A CN200610072426 A CN 200610072426A CN 1832025 A CN1832025 A CN 1832025A
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Abstract
A method for playing audio in game of mobile phone includes obtaining required sound and storing it in form of audio file, setting and storing a playing rule in advance, monitoring game action and seeking out stored audio file according to said playing rule, obtaining audio signal being able to be played out directly by decoding and decompressing audio file, carrying out convolution operation on audio signal to generate convolution signal being used to play out.
Description
Technical field
The present invention relates to the voice playing technology, specifically relate to audio frequency playing method and system in a kind of mobile phone games.
Background technology
Along with the continuous development of mobile phone industry, the user is also more and more high to the amusement requirement of mobile phone, and in the mobile phone value-added service, mobile phone games also occupy more and more consequence.Yet cell phone platform is with respect to computing machine, because its capacity is little, speed waits the restriction of objective condition slowly, and the exploitation of mobile phone games also is subjected to all restrictions.
Audio frequency in the mobile phone games is divided into background music and special efficacy music etc. usually, in mobile phone games, often need to play simultaneously multiple audio frequency, to satisfy user's demand acoustically, because most of mobile phone can not provide the interface of playing a plurality of audio files simultaneously for an application program, because audio frequency of every broadcast just need be opened a broadcast process, little for capacity, the mobile phone that processing power is limited, process too much cause the wretched insufficiency of mobile phone resources, even process is uncontrollable.
Suppose that design has one section background music A in the recreation, special efficacy music B when several sections players fight, special efficacy music C during one section player's triumph, special efficacy music D when one section player fails, in whole game process, play background music A, when the player responds action, play special efficacy music B, C or the D of response.
Prior art adopts three kinds of following technical schemes to solve for above-mentioned technical matters usually:
Technical scheme one: static state is recorded method
This method is background music and special efficacy music to be prerecorded into an audio file store, if a plurality of special efficacy music are arranged, then record a plurality of audio files, all be stored in a plurality of audio files in the mobile phone, each audio file all is the combination of background music and special efficacy music, in game process, play as required.
But because each audio file all comprises background music and special efficacy music, each audio file all occupies bigger storage space and running space, specifically in the limited space resources of mobile phone, cause the waste in space, so this method is used and is subjected to great restriction.
Technical scheme two: separate the broadcast method
This method is that background music A and special efficacy music B, special efficacy music C and special efficacy music D are recorded into audio file respectively, and each audio file is background music or special efficacy music.In game process, when needs were play the special efficacy music, the broadcast process stopped to play background music A, and began to play the special efficacy music, and the special efficacy music finishes, and carried out the broadcast of background music A again.
This method has solved the storage space resource problem in the technical scheme one, but adopt this technical scheme, in playing process, need stop one section music earlier, could play another section music, what exist playing program stops, starting switching, has the sensation of significantly pausing on auditory effect, and result of broadcast is not good enough.
Technical scheme three: take out frame and play method
This method is an audio frequency to be interrupted according to the regular hour carry out five equilibrium, and each piece music becomes a frame.When needs carry out certain special efficacy music, select background music A and required special efficacy music B or the partial frame of C or D, combination is play.
Because the technical program is during to the special efficacy music, that need not play process stops, restarting switching, but adopt the mode of taking out frame combination broadcast to play the special efficacy music, solved the broadcast stall problem in the technical scheme two, yet during owing to the special efficacy music, a part of frame of only choosing in background music and the special efficacy music VF makes up broadcast, other frames have been abandoned, combined frames can't reflect the complete signal feature of former two audio frequency, make and the distortion of special efficacy music effect influence result of broadcast.
Summary of the invention
The technical problem to be solved in the present invention provides audio frequency playing method and the system in a kind of mobile phone games, on the mobile phone that is implemented in the performance resource-constrained, under the situation that does not influence auditory effect, plays when realizing multiple audio frequency.
For solving the problems of the technologies described above, (referring to the claim) that the objective of the invention is to be achieved through the following technical solutions:
Audio frequency playing method in a kind of mobile phone games may further comprise the steps:
A, obtain required sound, and with described sound with audio files storage;
B, default and storage play rules;
C, monitoring game action;
D, search institute's storing audio files according to described play rules;
E, audio file is decoded, decompressed, obtain the sound signal that to play-over, sound signal is carried out convolution algorithm, generate convolution signal;
F, play described convolution signal.
In the method for the present invention, described step B specifically may further comprise the steps:
B1, the corresponding relation of game operation action and audio file is set;
B2, store described corresponding relation.
In the method for the present invention, described step B1 specifically may further comprise the steps:
B11, audio file is numbered respectively;
B12, with described game action corresponding described numbering respectively.
In the method for the present invention, the described pointer that is numbered, the memory location of sensing audio file.
In the method for the present invention, searching specifically described in the described step D comprises:
D1, according to described game action and play rules, search the numbering of corresponding audio files with it;
D2, obtain corresponding audio file according to described numbering.
In the method for the present invention, the convolution algorithm described in the step e specifically: only choose by the start information of convolution signal and current information and carry out convolution.
In the method for the present invention, described start information is set at a fixed value.
In the method for the present invention, described start information is set at 1.
The present invention also provides the audio frequency broadcast system in a kind of mobile phone games, comprising:
Sound acquiring is used to obtain required sound, and the sound that is obtained is modulated the back forms audio file and send to storage unit;
Storage unit is used for storing audio files;
Monitoring unit is used to monitor game action;
Game logic unit: be used for according to the work of game logic information Control monitoring unit, receive the monitoring unit feedback information, and according to feedback information and play rules, obtaining needs the displaying audio file numbering, and described numbering sent to the audio frequency synthesis unit, wherein said game logic information and play rules are stored in the game logic unit, described play rules has been stipulated the corresponding relation of game action and audio file, described corresponding relation is to set up with the numbering of described action diaphone frequency file, and described audio file number is for pointing to the pointer of file storage location;
The audio frequency merge cells is used for obtaining corresponding audio file according to the audio frequency numbering of being obtained in storage unit, decode, decompress, obtain the audio coding that to play, described coding is carried out convolution algorithm, obtain convolution signal, export playing module to;
Broadcast unit; Be used for voice playing.
The present invention has following technical scheme compared with prior art:
At first, saved storage space because a plurality of audio file separate, stored that the present invention plays for needs have guaranteed not repeating of storage space.
In addition, the present invention presets the audio plays rule, when needs are play a plurality of audio frequency, according to described rule searching corresponding audio files, sound signal is carried out convolution algorithm, obtains and exports convolution signal and play to playback interface.On the one hand, when carrying out the special efficacy music, only need convolution signal with sound signal be input to playback interface and play and get final product, need not play the switching of process, guaranteed the continuity of mobile phone games music; On the other hand, by the operating characteristic of convolution algorithm as can be known, convolution signal has comprised by almost whole features of convolution signal, has therefore guaranteed the high fidelity of result of broadcast.
Description of drawings
Fig. 1 is an audio frequency playing method process flow diagram of the present invention;
Fig. 2 is an allocation list corresponding relation synoptic diagram of the present invention;
Fig. 3 is a system architecture synoptic diagram of the present invention.
Embodiment
Core of the present invention be in mobile phone to sound with the audio file separate, stored, each audio file is numbered, make numbering point to the memory location of described audio file, and set up the corresponding relation of game action and audio file, when the action that is monitored is when needing action that multiple audio frequency plays simultaneously, search audio file number according to described action and reference number of a document relation, obtain audio file according to audio file number, sound signal is carried out convolution algorithm, obtain convolution signal, the output convolution signal is play.The multiple audio frequency of realization mobile phone games is exported simultaneously.
Those skilled in the art's the understanding of the present invention for convenience, the present invention is further illustrated below in conjunction with accompanying drawing and specific embodiment:
Be illustrated in figure 1 as the process flow diagram of described method of the present invention, may further comprise the steps:
Step S101: obtain required sound, and be stored as audio file:
Needs according to recreation, gather background sound and various special efficacy sound, sound is modulated and is stored in the mobile phone with the form of audio file, wherein the audio format of Cai Yonging can use general various forms at present, as mp3, rm, mid etc., specifically be to form audio file after simulating signals such as sound are encoded by encoding compression mode separately.
Step S102: default and storage play rules:
Described rule specifically is the corresponding relation of the action of regulation mobile phone games in audio file, at first audio file is numbered respectively, this numbering can be for pointing to the virtual address that audio file deposits or the pointer of physical address, also can for other can the audio files storage position other symbol; The corresponding relation of the action and the numbering of audio file is formed allocation list, the stored configuration table, as shown in Figure 2.Described corresponding relation can be an one-one relationship, also can be many-one relationship.Specifically be provided with as required.
Step S103: monitoring game action:
Monitor in the current recreation and move.
Step S104, search institute's storing audio files:
After step S103 monitors certain action,, search and the pairing audio file number of current operational motion according to the corresponding relation in this current action contrast allocation list.As shown in Figure 2, as current action for action 1, then according to the corresponding relation in the allocation list, this has moved 1 correspondence two audio files, the numbering of this two audio file is respectively a, b.According to audio file number, obtain audio file.
Step S105: audio file is decoded, decompressed, obtain the sound signal that can play-over, sound signal is carried out convolution algorithm, generate convolution signal:
The audio file that is obtained is decoded and decompressed, obtain the sound signal of play-overing of each audio file.Sound signal is carried out convolution algorithm, obtain convolution signal.The sound signal that can play-over adopts the pcm encoder form usually, and corresponding convolution algorithm promptly carries out convolution algorithm to the PCM data, obtains convolution signal, and the convolution signal form that is obtained is similarly PCM signal format.If the corresponding audio file of concrete described game action, this kind situation is equal to the sound signal and 1 of this audio file and carries out convolution, and convolution signal equals by convolution signal; If the corresponding two or more audio files of described game action then carry out two or more signal convolution algorithms.By the convolution algorithm characteristic as can be known, the convolution sound signal of being obtained behind the convolution algorithm is to have comprised that each is by the PCM data of convolution audio signal characteristic.
Step S106, broadcast convolution signal:
The convolution signal that is obtained is play by playback interface, realized the broadcast of multiple audio frequency.
How following analyzing audio convolution algorithm realizes that multiple audio frequency plays simultaneously: suppose to be respectively x (n) and h (n) by the convolution sound signal, convolution signal is y (n), according to the audio frequency convolution time greater than 0, can obtain:
Because sound signal is a discretely-encoded signals, convolution results is obtained specific as follows:
y(0)＝x(0)h(0)
y(1)＝x(0)h(1)+x(1)h(0)
y(2)＝x(0)h(2)+x(1)h(1)+x(0)h(2)
.........
We can see as a result by top, the calculated amount of convolution algorithm is very big, if strict calculating, this computation process is in mobile phone games, to expend huge internal memory and cpu resource, so we are according to effect and feasibility balance, the result are formed accept or reject, only select for use and current relevant part as a result, obtain:
y(n)＝x(n)h(0)+x(0)h(n).............(1)
Relational expression (1) is further optimized, h (0) and x (0) are set at some values, because h (0) and x (0) shared proportion in total information is very little, we set h (0)=1, x (0)=1, so have:
y(n)＝x(n)+h(n)........................(2)
By formula (2) as seen, the convolution signal y (n) that obtains has at last comprised by nearly all signal characteristic of convolution signal h (n) and x (n).
Can carry out convolution to two signals earlier for the situation that by convolution signal is three, convolution signal in the middle of obtaining carries out convolution with convolution signal in the middle of described and the 3rd signal again, obtains final convolution signal.In like manner for have more than three by the audio frequency convolution situation of convolution signal, method can obtain in the reference, is provided with i by convolution signal to be respectively: x
1(n), x
2(n) ... x
i(n), convolution signal is: y (n) has:
y(n)＝x
1(n)+x
2(n)+...+x
i(n)......................(3)
Can see by formula (3), technical scheme provided by the invention is play frequently the time for multitone, by convolution algorithm, can guarantee that the convolution sound signal of exporting has comprised each by the most feature of convolution sound signal, the audio frequency that output is play has very high fidelity.
By the above embodiments as seen, various audio frequency among the present invention are stored in the mobile phone separately respectively, when the needs that do not have to set are play the special efficacy music, play background music separately, have only when monitoring certain operational motion of recreation, just obtain corresponding audio files according to play rules, audio file is decoded and decompressed, obtain and directly to export the sound signal of broadcast, this sound signal is carried out convolution algorithm, obtain convolution signal, directly convolution signal is input to playback interface and plays.Because the present invention stores respectively audio file, have only when needed and just the sound signal of each required audio file is carried out convolution algorithm, directly convolution signal being input to the broadcast import plays, and do not store, both saved the mobile phone space resources, guarantee the continuity of voice playing again, guaranteed the high fidelity play quality of sound simultaneously.
Be illustrated in figure 3 as system architecture synoptic diagram of the present invention: native system comprises: sound acquiring 305, monitoring unit 301, storage unit 306, game logic unit 302, audio frequency merge cells 303 and broadcast unit 304.
The basic functional principle of this system is as follows:
Sound acquiring 305 is obtained needed sound, and stores into and be attached thereto in the Audio storage unit 306 that connects, and its storage format can be existing any audio storage form such as any audio formats such as mp3, rm, mid; Monitoring unit 301 is connected with game logic unit 302, according to the game logic information that presets in the game logic unit 302, monitor current game action in real time, when monitoring the action of required broadcast special efficacy audio frequency, game logic unit 302 is according to this action, contrast is stored in the play rules allocation list (as shown in Figure 2) in the game logic unit 302, obtain this and move pairing audio file number, monitor action 1 generation that current needs are play the special efficacy audio frequency such as monitoring unit, to move and 1 feed back to game logic unit 302, game logic unit 302 is according to the play rules allocation list, and finding action 1 pairing audio file number is a, b; Game logic unit 302 sends to audio frequency synthesis unit 303 with this audio file number, audio frequency synthesis unit 303 reads from Audio storage unit 306 according to this numbering and respectively numbers audio file pointed, and each audio file decoded respectively, decompress, obtain the PCM data that directly to play, and the PCM data-signal that is obtained carried out convolution algorithm, obtain PCM data convolution signal, at last this convolution signal is outputed to broadcast unit 304, broadcast unit 304 is realized the special efficacy voice playing by playback interface.
By as seen above-mentioned, native system since in the game logic unit 302 kinds default and stored the play rules allocation list, stipulated the pairing audio frequency label that should play of game action, this numbering is pointed to the memory location of diaphone frequency file, when monitoring unit monitors the action that needs broadcast special efficacy audio frequency, the corresponding audio label is searched according to allocation list in game logic unit 302, audio file number is sent to audio frequency synthesis unit 303, audio frequency synthesis module 303 is searched audio file according to this audio frequency numbering, and audio file carried out convolution algorithm, obtain convolution signal, then convolution signal is directly outputed to broadcast unit 304 and play.As seen in the mobile phone games process, beginning broadcast and stopping broadcast constantly of special efficacy music only need be play the switching of input data, and need not be carried out the switching of the broadcast process of audio frequency, guaranteed the continuity of voice playing.In addition as can be known by the convolution feature: the convolution sound signal that outputs to broadcast unit comprised carry out convolution algorithm each by almost whole features of convolution sound signal, guaranteed that therefore the sound signal of output has high fidelity.
More than audio frequency playing method and system in a kind of mobile phone games provided by the present invention are described in detail, used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (9)
1, the audio frequency playing method in a kind of mobile phone games may further comprise the steps:
A, obtain required sound, and with described sound with audio files storage;
B, default and storage play rules;
C, monitoring game action;
D, search institute's storing audio files according to described play rules;
E, audio file is decoded, decompressed, obtain the sound signal that to play-over, sound signal is carried out convolution algorithm, generate convolution signal;
F, play described convolution signal.
2, the audio frequency playing method in the mobile phone games according to claim 1, it is characterized in that: described step B specifically may further comprise the steps:
B1, the corresponding relation of game action and audio file is set;
B2, store described corresponding relation.
3, the audio frequency playing method in the mobile phone games according to claim 2, it is characterized in that: described step B1 specifically may further comprise the steps:
B11, audio file is numbered respectively;
B12, with described game action corresponding described numbering respectively.
4, the audio frequency playing method in the mobile phone games according to claim 3 is characterized in that: the described pointer that is numbered, the memory location of sensing audio file.
5, according to the audio frequency playing method in claim 3 or the 4 described mobile phone games, it is characterized in that: searching specifically described in the step D comprises:
D1, according to described game action and play rules, search the numbering of corresponding audio files with it;
D2, obtain corresponding audio file according to described numbering.
6, the audio frequency playing method in the mobile phone games according to claim 1 is characterized in that: the convolution algorithm described in the described step e specifically: only choose by the start information of convolution signal and current information and carry out convolution.
7, the audio frequency playing method in the mobile phone games according to claim 6 is characterized in that: described start information is set at a fixed value.
8, the audio frequency playing method in the mobile phone games according to claim 7 is characterized in that: described start information is set at 1.
9, the audio frequency broadcast system in a kind of mobile phone games is characterized in that: comprising:
Sound acquiring is used to obtain required sound, and described sound is carried out sending to storage unit behind the compressed encoding;
Sound acquiring is used to obtain required sound, and the sound that is obtained is modulated the back forms audio file and send to storage unit;
Monitoring unit is used to monitor game action;
The game logic unit, be used for according to the work of game logic information Control monitoring unit, receive the monitoring unit feedback information, and according to feedback information and play rules, obtain the audio file number that needs broadcast, and described numbering sent to the audio frequency synthesis unit, wherein said game logic information and play rules are stored in the game logic unit, described play rules has been stipulated the corresponding relation of game action and audio file, described corresponding relation is to set up with the numbering of described action diaphone frequency file, and described audio file number is for pointing to the pointer of file storage location;
Audio frequency merge cells: be used in storage unit, obtaining corresponding audio file, decode according to the audio frequency numbering of being obtained, decompress, obtain the audio coding that to play, described coding is carried out convolution algorithm, obtain convolution signal, export playing module to;
Broadcast unit is used for voice playing.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104375799A (en) * | 2013-08-13 | 2015-02-25 | 腾讯科技（深圳）有限公司 | Audio invoking method and audio invoking device |
| CN106297842A (en) * | 2016-08-15 | 2017-01-04 | 乐视控股（北京）有限公司 | A kind of audio frequency intercept method and device |
| CN107256707A (en) * | 2017-05-24 | 2017-10-17 | 深圳市冠旭电子股份有限公司 | A kind of audio recognition method, system and terminal device |
| CN111182123A (en) * | 2018-11-13 | 2020-05-19 | 奇酷互联网络科技（深圳）有限公司 | Method for avoiding audio playing delay of wireless player, mobile terminal and storage medium |
| CN111813368A (en) * | 2020-07-27 | 2020-10-23 | 上海摩勤智能技术有限公司 | System, method, equipment and storage medium for simulating sounding of sounding device |
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| US5724482A (en) * | 1995-05-22 | 1998-03-03 | Lucent Technologies Inc. | Smart tray for audio player |
| US6119092A (en) * | 1998-06-26 | 2000-09-12 | Lsi Logic Corporation | Audio decoder bypass module for communicating compressed audio to external components |
| JP2000148188A (en) * | 1998-11-10 | 2000-05-26 | Tdk Corp | Digital speech recording and reproducing device |
| CN1487719A (en) * | 2003-08-07 | 2004-04-07 | 海信集团有限公司 | MP3 playback method for cellphone |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104375799A (en) * | 2013-08-13 | 2015-02-25 | 腾讯科技（深圳）有限公司 | Audio invoking method and audio invoking device |
| CN106297842A (en) * | 2016-08-15 | 2017-01-04 | 乐视控股（北京）有限公司 | A kind of audio frequency intercept method and device |
| CN107256707A (en) * | 2017-05-24 | 2017-10-17 | 深圳市冠旭电子股份有限公司 | A kind of audio recognition method, system and terminal device |
| CN111182123A (en) * | 2018-11-13 | 2020-05-19 | 奇酷互联网络科技（深圳）有限公司 | Method for avoiding audio playing delay of wireless player, mobile terminal and storage medium |
| CN111813368A (en) * | 2020-07-27 | 2020-10-23 | 上海摩勤智能技术有限公司 | System, method, equipment and storage medium for simulating sounding of sounding device |
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