CN107707742A - A kind of audio file play method and mobile terminal - Google Patents
A kind of audio file play method and mobile terminal Download PDFInfo
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- CN107707742A CN107707742A CN201710832388.5A CN201710832388A CN107707742A CN 107707742 A CN107707742 A CN 107707742A CN 201710832388 A CN201710832388 A CN 201710832388A CN 107707742 A CN107707742 A CN 107707742A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72442—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality for playing music files
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/16—Sound input; Sound output
- G06F3/165—Management of the audio stream, e.g. setting of volume, audio stream path
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Abstract
The invention provides a kind of audio file play method and mobile terminal, is related to technical field of electronic equipment, and this method includes：When playing the first audio file, the switching command for switching to the second audio file is received；In the first time period at current time to default switching instant, control sound source carries out the first signal transacting, and the audio signal after playback process in the way of default first path is away from user, to the audio signal of first audio file；In the default second time period after the switching instant, control sound source carries out secondary signal processing, and the audio signal after playback process in the way of default second path is close to user, to the audio signal of second audio file.The present invention solves existing electronic equipment when playing audio file, it is more single to the audio effect processing of handoff procedure the problem of.
Description
Technical field
The present invention relates to technical field of electronic equipment, more particularly to a kind of audio file play method and mobile terminal.
Background technology
With the development of electronic device technology, user is to the degree of dependence more and more highers of various electronic equipments, for example passes through
Electronic equipment is communicated or played music etc..During music is played by electronic equipment, in order to lift user's sense of hearing,
Often built-in various audios select for user in playback equipment.But during user switches audio file, electronic equipment
It is more single to the audio effect processing of audio file, it is generally only that common audio effect processing of being fade-in fade-out is carried out to audio file, it is difficult
With the technology sense for lifting the usage experience of user and embodying electronic equipment.
The content of the invention
The invention provides a kind of audio file play method and mobile terminal, and its purpose is to solve existing electronics to set
It is standby when playing audio file, it is more single to the audio effect processing of handoff procedure the problem of.
On the one hand, the embodiment provides a kind of audio file play method, this method to include：
When playing the first audio file, the switching command for switching to the second audio file is received；
In the first time period at current time to default switching instant, control sound source is remote according to default first path
The mode of user, the first signal transacting, and the audio letter after playback process are carried out to the audio signal of first audio file
Number；
In the default second time period after the switching instant, control sound source is used according to default second path is close
The mode at family, secondary signal processing, and the audio signal after playback process are carried out to the audio signal of second audio file.
On the other hand, embodiments of the invention additionally provide a kind of mobile terminal, including：
Command reception module, for when playing the first audio file, receiving for switching to the second audio file
Switching command；
First processing module, in the first time period at current time to default switching instant, control sound source to be pressed
According to mode of the default first path away from user, the first signal transacting is carried out to the audio signal of first audio file, and
Audio signal after playback process；
Second processing module, in the default second time period after the switching instant, control sound source according to
Default second path carries out secondary signal processing, and broadcast close to the mode of user to the audio signal of second audio file
Put the audio signal after processing.
Another aspect, embodiments of the invention additionally provide a kind of mobile terminal, including：Memory, processor and storage
On a memory and the computer program that can run on a processor, above-mentioned audio text is realized during computing device computer program
Step in part player method.
Another further aspect, embodiments of the invention additionally provide a kind of computer-readable recording medium, computer-readable storage
Computer program is stored with medium, the step in above-mentioned audio file play method is realized when computer program is executed by processor
Suddenly.
So, audio file play method and mobile terminal provided by the invention, playing the first audio file and receiving
During to the switching command for switching to the second audio file, in the first time period at current time to switching instant, sound source is controlled
In the way of default first path is away from user, the first signal transacting is carried out to the audio signal of first audio file,
User is set to obtain the remote dimensional orientation effect of the first audio file；In the second time period after switching instant, control sound
Source is carried out at secondary signal in the way of default second path is close to user to the audio signal of second audio file
Reason, user is obtained the second audio file in close dimensional orientation effect, audio effect processing is added when audio file switch, battalion
A kind of spatial impression of switching is made, improves Consumer's Experience.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 represents the flow chart of audio file play method provided in an embodiment of the present invention；
Fig. 2 represents one of exemplary scene schematic diagram of the embodiment of the present invention；
Fig. 3 represents the two of the exemplary scene schematic diagram of the embodiment of the present invention；
Fig. 4 represents the first exemplary scene schematic diagram of the embodiment of the present invention；
Fig. 5 represents the second exemplary scene schematic diagram of the embodiment of the present invention；
Fig. 6 represents one of block diagram of mobile terminal of embodiments of the invention；
Fig. 7 represents the block diagram for the electronic equipment that the 3rd example of embodiments of the invention provides；
Fig. 8 represents the two of the block diagram for the mobile terminal that embodiments of the invention provide；
Fig. 9 represents the three of the block diagram for the mobile terminal that embodiments of the invention provide.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is part of the embodiment of the present invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
It should be understood that " one embodiment " or " embodiment " that specification is mentioned in the whole text mean it is relevant with embodiment
During special characteristic, structure or characteristic are included at least one embodiment of the present invention.Therefore, occur everywhere in entire disclosure
" in one embodiment " or " in one embodiment " identical embodiment is not necessarily referred to.In addition, these specific feature, knots
Structure or characteristic can combine in one or more embodiments in any suitable manner.
In various embodiments of the present invention, it should be appreciated that the size of the sequence number of following each processes is not meant to perform suitable
The priority of sequence, the execution sequence of each process should be determined with its function and internal logic, without the implementation of the reply embodiment of the present invention
Process forms any restriction.
Referring to Fig. 1, the embodiment provides a kind of audio file play method, including：
Step 101, when playing the first audio file, the switching command for switching to the second audio file is received.
Wherein, audio file can be music or other audio files.When the mistake of the audio file of mobile terminal playing first
Cheng Zhong, switching command is received, be switched to and play the second audio file, for example play the instruction of next song；Switching command
It can actively be triggered by user, can also be automatically generated by mobile terminal；For example mobile terminal will in the first audio file of detection
When finishing, switching command is automatically generated.
Step 102, in the first time period at current time to default switching instant, control sound source is according to default first
Mode of the path away from user, the first signal transacting is carried out to the audio signal of first audio file, and after playback process
Audio signal.
Wherein, when receiving switching command at current time, determine that the first time period after current time is afterwards pre-
If switching instant, and in the first time period at current time to switching instant, the audio of first audio file is believed
Number carry out the first signal transacting after play again.Specifically, it is remote according to default first path to include control sound source for the first signal transacting
From the mode of user, that is, sound source is simulated in the way of default first path is away from user, user is felt the first audio text
Part audio remote in auditory perspective.
Step 103, in the default second time period after the switching instant, control sound source is according to default second tunnel
Footpath is close to the mode of user, the audio signal progress secondary signal processing to second audio file, and after playback process
Audio signal.
Wherein, the second audio signal, and the default second time period after switching instant are switched in switching instant
It is interior, to being played again after the audio signal progress secondary signal processing of second audio file.Specifically, secondary signal processing bag
Control sound source is included in the way of default second path is close to user, that is, simulates sound source according to default second path close to user
Mode, user is felt the second audio file audio close in auditory perspective.
Specifically, mainly logical virtual auditory resets realization, virtual auditory weight for the first signal transacting and secondary signal processing
Put an important laboratory facilities as binaural scientific research.It passes through head-position difficult labor (Head Related
Transfer Functions, HRTF) carry out signal transacting, be based primarily upon the Location Mechanism of spatial hearing, using with HRTF pairs
Original sound signal is processed, and protrudes location sense of the listener to sound source, reproduces the spatial information of voice signal.Can basis
The sound for coming from any direction by adjusting HRTF reproductions is needed, is fictionalized using a small amount of actual speakers and it is expected sound source position
Put, obtain good spatial impression, reach the reproduction of virtual sound image in three dimensions, and simplify system, save cost and sky
Between, it is easy to implement.
HRTF embodies in sound wave transmittance process external ear, head, trunk etc. to the filtering from different directions voice signal
Effect, both comprising spectrum signature, also combines Interaural difference feature, is important orientative feature.By the HRTF of a direction with
After original sound convolution, then it is played back in human ear by certain way, then hearer can be made to perceive the direction feeling in free found field
Effect.The essence of the Auricle effect of people is to change the sound spectrum characteristic for coming from space different directions so that the whole sense of hearing
System is similar to a wave filter, different filtering is carried out to the sound of different directions, so that human ear experiences sound bearing
Difference.These overall treatment effects can be regarded as caused by wave filter, can be retouched by a unified transmission function
State, here it is head related transfer function, and the response of wave filter is referred to as head Related impulse response (Head Related Impulse
Response, HRIR).Controlled HRIR and (simulated) sound source according to default first path away from user by way of or control sound
The change for making user feel sense of hearing direction feeling then can be achieved in the way of default second path is close to user in source.
In the case of free found field, HRTF is defined as on frequency domain signal in duct to be believed with the free found field in respective direction
The ratio between number.Specific expression-form following expression 1 and expression formula 2
Expression formula 1：
Expression formula 2：
Wherein, expression formula 1 represents the head-position difficult labor of attentive listener (i.e. user) left ear, and expression formula 2 represents attentive listener
The head-position difficult labor of auris dextra；PLAnd PRIt is the sound wave that is sent of sound source in an orientation respectively caused by left and right ear
Plural acoustic pressure；And P0It is that the free found field that the sound source of corresponding orientation travels to head center position is answered when measurement object is not present
Number acoustic pressure.
R is the distance at sound source center to the end, and ω is the angular frequency of sound wave, and azimuth angle theta and elevation angle ψ represent the direction of sound source.
Under normal circumstances, HL and HR is azimuth angle theta and elevation angle ψ, distance r and angular frequency function.When sound source from head center compared with
When remote, e.g., r>1.4m, HLAnd HRSubstantially with apart from unrelated.In addition, HLAnd HRAlso with the head sizes and head of hearer's object
Relevant with the shape of auricle, there is the difference between individual.
Expression formula 1 and the frequency domain presentation form that expression formula 2 is HRTF, can also equivalently be expressed as following time domain shape
Formula：
The forms of time and space expression formula 11 of expression formula 1：
The forms of time and space expression formula 21 of expression formula 2：
Here in order to represent that the physical quantity of frequency domain distinguishes with capitalization in expression formula 1, small letter is used in expression formula 11
Mother represents and the corresponding Time domain physical amount of expression formula 1, and alphabetical t is only used in above-mentioned formula as time-domain and frequency-domain conversion；
Expression formula 2 and expression formula 21 are similarly；Wherein p0、pL、pRRespectively with P0, PL、PRFourier transform pairs each other, represent corresponding time domain
Acoustic pressure；And hLAnd hR, be corresponding impulse response HRIR, respectively with HLAnd HRFourier transform pairs each other.From above-mentioned expression formula
It can be seen that this is the process of a convolution.
Accordingly, there exist following relation (expression formula 12 and expression formula 22)：
Expression formula 12：
Expression formula 22：
Expression formula 13 is obtained according to expression formula 12, expression formula 23 is obtained according to expression formula 22：
Expression formula 13：
Expression formula 23：
Wherein, hLAnd HL, hRAnd HRFourier transform pairs each other；Expression formula 13 and expression formula 23 are respectively the left ears of attentive listener
With the HRIR of auris dextra, by voice signal p0 with after the HRIR phase convolution of certain orientation, the sound with certain orientation sense can be obtained
Sound signal P, that is, acoustic pressure adjustment formula hereinafter.Such voice signal is produced from by playback can in human brain
By the direction feeling effect of sound source in sound field.
Preferably, step 101 includes：
Obtaining first audio file will play in the first time period at current time to default switching instant
Each sound channel the first audio signal；
Each first audio signal is inputted to default acoustic pressure and adjusts formula, and according to the first predeterminated frequency, is increased
Sound source in the big acoustic pressure adjustment formula and with the azran between account center, the audio signal after being handled.
Wherein, after receiving switching command, switching instant is determined, and obtains current time between switching instant
First audio signal of each sound channel played in one period, by taking two sound channels as an example, the first audio signal of each sound channel
First audio signal of the first audio signal and R channel including L channel；The first audio signal difference of each sound channel is defeated
Enter to each self-corresponding default acoustic pressure adjustment formula, and according to the first predeterminated frequency, increase in the acoustic pressure adjustment formula
Sound source and with the azran between account center, user is obtained what the first audio file was gradually distance from playing process
Technique effect.
It is the schematic diagram of a scenario for not carrying out signal transacting referring to Fig. 2 and Fig. 3, Fig. 3 as the first example；Wherein, ELFor
The left ear of user, ERFor user's auris dextra；In T1 receptions to switching command in Fig. 2, T2 is switching instant, in T1 to T2 time
In section, the first signal transacting is carried out to the first audio signal of each sound channel of the first audio file.Referring to Fig. 4, Fig. 4 is carries out the
Schematic diagram of a scenario after one signal transacting；
1) before the T1 moment, normal play A song signals SA。
2) in T1 to T2 this periods, by A song signals SAEnter with the head Related impulse response HRIR changed over time
Played out after row convolution.Azimuth angle theta in the head Related impulse response HRIR of T1 moment institutes labeling position in Fig. 3 is fixed,
The elevation angle is set to ψ=0, is changed to T2 from T1 over time, gradually increases r, until the T2 moment, head Related impulse response (H in figureL
And HR) become the head Related impulse response for turning to T2 institutes labeling position in Fig. 4.
3) A song signals S is played in T2 moment, stoppingA。
Preferably, step 102 includes：
Obtain what second audio file will play in the default second time period after the switching instant
Second audio signal of each sound channel；
Each second audio signal is inputted to default acoustic pressure and adjusts formula, and according to the second predeterminated frequency, is subtracted
Sound source in small acoustic pressure adjustment formula and with the azran between account center, the audio signal after being handled.
Wherein, the second audio signal, and the default second time period after switching instant are switched in switching instant
It is interior, to being played again after the audio signal progress secondary signal processing of second audio file, by taking two sound channels as an example, Mei Gesheng
Second audio signal in road includes the second audio signal of L channel and the first audio signal of R channel；By the of each sound channel
Two audio signals are separately input into each self-corresponding default acoustic pressure adjustment formula, and according to the second predeterminated frequency, reduce institute
State acoustic pressure adjustment formula in sound source and use the azran between account center, make user acquisition the second audio file playing
During the technique effect that moves closer to.
It is the schematic diagram of a scenario for not carrying out signal transacting referring to Fig. 2 and Fig. 3, Fig. 3 as the second example；Wherein, ELFor
The left ear of user, ERFor user's auris dextra；In T1 receptions to switching command in Fig. 2, T2 is switching instant, in T2 to T3 time
In section, secondary signal processing is carried out to the second audio signal of each sound channel of the second audio file.Referring to Fig. 5, Fig. 5 is carries out the
Schematic diagram of a scenario after binary signal processing；
1) at the T2 moment as shown in Fig. 2 to B song signals SBAudio effect processing is carried out, by B song signals SBWith T2 institutes in Fig. 2
The head Related impulse response HRIR of labeling position carries out convolution, is then played；
2) in T2 to T3 this periods, by B song signals SBRolled up with the head Related impulse response changed over time
Played out after product.Azimuth angle theta in the head Related impulse response HRIR of T2 institutes labeling position in Fig. 2 is fixed, elevation angle ψ=0,
T3 is changed to from T2 over time, is gradually reduced r, until at the T3 moment, the head Related impulse of T2 institutes labeling position in Fig. 2 is responded
(H in figureLAnd HR) become the head Related impulse response HRIR for turning to T3 institutes labeling position in Fig. 5.
3) after the T3 moment, normal play B song signals SB。
Preferably, the acoustic pressure adjustment formula is below equation：
Wherein, r is the azran, and θ is sound source and uses the default azimuth between account center, φ be sound source and
With the default elevation angle between account center；
p0(t) it is the time-domain expression of sound source and the free found field plural number acoustic pressure with account center；
Impulse response function for sound source and with the head correlation function between account center.
Wherein, what the first signal transacting and secondary signal adjusted respectively in handling is that azran r, θ and φ are default
Fixed value, alphabetical t in above-mentioned formula only as time-domain and frequency-domain conversion use；p0(t) it is sound source and use account center
The time-domain expression of free found field plural number acoustic pressure, i.e., in the absence of measurement object when, the sound source of corresponding orientation travels to head center
The free found field plural number acoustic pressure of position.For sound source and with the head correlation function between account center
Impulse response function, i.e. voice signal P0With the HRIR of certain orientation convolution.
That is, acoustic pressure adjustment formula is p0(t) withConvolution.It is it should be noted that same
The acoustic pressure adjustment formula of each sound channel of one audio file may be different, and the acoustic pressure adjustment formula of each sound channel is p0(t) with
Each self-corresponding HRIR convolution.
Preferably, the step of audio signal after the playback process, in addition to：
Audio signal after the processing of each sound channel is synthesized, the audio signal after being synthesized simultaneously plays out.
Wherein, voice signal P is exactly to contain L channel p in time domainLSignal and R channel pRThe voice signal of signal.
Because the acoustic pressure adjustment formula of each sound channel may be different, the audio signal after processing is closed again after carrying out signal transacting respectively
Into.
Alternatively, the above embodiment of the present invention is also applied to other electronic equipments, such as computer.
In the above embodiment of the present invention, cutting for the second audio file is switched to playing the first audio file and receiving
When changing instruction, in the first time period at current time to switching instant, control sound source is according to default first path away from user
Mode, the first signal transacting is carried out to the audio signal of first audio file, user is obtained the first audio file remote
From dimensional orientation effect；In the second time period after switching instant, control sound source is used according to default second path is close
The mode at family, secondary signal processing is carried out to the audio signal of second audio file, user is obtained the second audio file
In close dimensional orientation effect；Added using virtual auditory space technology and HRTF signal transactings when audio file switches
Audio effect processing, a kind of spatial impression of switching is built, improve Consumer's Experience.The present invention solves existing electronic equipment and is playing audio
During file, it is more single to the audio effect processing of handoff procedure the problem of.
Referring to Fig. 6, embodiments of the invention additionally provide a kind of mobile terminal 600, including：
Command reception module 601, it is used to switch to the second audio file for when playing the first audio file, receiving
Switching command.
Wherein, audio file can be music or other audio files.When mobile terminal 600 plays the first audio file
During, switching command is received, is switched to and plays the second audio file, for example play the instruction of next song；Switching refers to
Order can actively be triggered by user, can also be automatically generated by mobile terminal 600；For example mobile terminal 600 is detecting the first audio
When file will finish, switching command is automatically generated.
First processing module 602, in the first time period at current time to default switching instant, controlling sound source
In the way of default first path is away from user, the first signal transacting is carried out to the audio signal of first audio file,
And the audio signal after playback process.
Wherein, when receiving switching command at current time, determine that the first time period after current time is afterwards pre-
If switching instant, and in the first time period at current time to switching instant, the audio of first audio file is believed
Number carry out the first signal transacting after play again.Specifically, it is remote according to default first path to include control sound source for the first signal transacting
From the mode of user, user is set to feel the first audio file audio remote in auditory perspective.
Second processing module 603, in the default second time period after the switching instant, control sound source to be pressed
Mode according to default second path close to user, secondary signal processing is carried out to the audio signal of second audio file, and
Audio signal after playback process.
Wherein, the second audio signal, and the default second time period after switching instant are switched in switching instant
It is interior, to being played again after the audio signal progress secondary signal processing of second audio file.Specifically, secondary signal processing bag
Control sound source is included in the way of default second path is close to user, makes user feel the second audio file in auditory perspective
Close audio.
Alternatively, as the 3rd example, referring to Fig. 7, the electronic equipment 700 shown in Fig. 7 includes：
Show interactive module 701：User can switch over song operation.
Control process module 702：The information obtained according to display interactive module, control device switch over broadcasting song and moved
Make, while control switching to play the sequential that song acts,
Calculate processing module 703：According to the instruction of control process module, the audio of specified song and specified time is entered
Row synthesis is handled, and the data after calculating is handled are sent to sound broadcasting module.
Sound broadcasting module 704：According to the instruction of control process module, the song letter for calculating processing module output is played
Number.
Wherein, sound broadcasting module 704, can be that loudspeaker can also be earphone, preferably earphone, because being broadcast in earphone
Put under state, this audio spatial impression is stronger, it is easier to user is experienced change of the sound source in space.
Alternatively, the first processing module 602 is used for：
Obtaining first audio file will play in the first time period at current time to default switching instant
Each sound channel the first audio signal；
Each first audio signal is inputted to default acoustic pressure and adjusts formula, and according to the first predeterminated frequency, is increased
Sound source in the big acoustic pressure adjustment formula and with the azran between account center, the audio signal after being handled.
Alternatively, the Second processing module 603 is used for：
Obtain what second audio file will play in the default second time period after the switching instant
Second audio signal of each sound channel；
Each second audio signal is inputted to default acoustic pressure and adjusts formula, and according to the second predeterminated frequency, is subtracted
Sound source in small acoustic pressure adjustment formula and with the azran between account center, the audio signal after being handled.
Alternatively, the acoustic pressure adjustment formula is below equation：
Wherein, r is the azran, and θ is sound source and uses the default azimuth between account center, φ be sound source and
With the default elevation angle between account center；
p0(t) it is the time-domain expression of sound source and the free found field plural number acoustic pressure with account center；
Impulse response function for sound source and with the head correlation function between account center.
Alternatively, mobile terminal 600 also includes：
Signal synthesizing module, for the audio signal after the processing of each sound channel to be synthesized, the audio letter after being synthesized
Number and play out.
In the above embodiment of the present invention, cutting for the second audio file is switched to playing the first audio file and receiving
When changing instruction, in the first time period at current time to switching instant, control sound source is according to default first path away from user
Mode, the first signal transacting is carried out to the audio signal of first audio file, user is obtained the first audio file remote
From dimensional orientation effect；In the second time period after switching instant, control sound source is used according to default second path is close
The mode at family, secondary signal processing is carried out to the audio signal of second audio file, user is obtained the second audio file
In close dimensional orientation effect；Added using virtual auditory space technology and HRTF signal transactings when audio file switches
Audio effect processing, a kind of spatial impression of switching is built, improve Consumer's Experience.The present invention solves existing electronic equipment and is playing audio
During file, it is more single to the audio effect processing of handoff procedure the problem of.
On the other hand, embodiments of the invention additionally provide a kind of mobile terminal, including：Memory, processor and storage
On a memory and the computer program that can run on a processor, realized when the computer program is by the computing device
Each process of above-mentioned audio file play method embodiment, and identical technique effect can be reached, to avoid repeating, here not
Repeat again.
Another further aspect, embodiments of the invention additionally provide a kind of computer-readable recording medium, computer-readable storage
Computer program is stored with medium, is realized when computer program is executed by processor each in above-mentioned audio file play method
Individual process, and identical technique effect can be reached, to avoid repeating, repeat no more here.Wherein, it is described computer-readable to deposit
Storage media, such as read-only storage (Read-Only Memory, abbreviation ROM), random access memory (Random Access
Memory, abbreviation RAM), magnetic disc or CD etc..
Referring to Fig. 8, another embodiment of the present invention provides a kind of mobile terminal 800.Mobile terminal 800 shown in Fig. 8
Including：At least one processor 801, memory 802, at least one network interface 804 and other users interface 803.It is mobile
Each component in terminal 800 is coupled by bus system 805.It is understood that bus system 805 is used to realize these groups
Connection communication between part.Bus system 805 is in addition to including data/address bus, in addition to power bus, controlling bus and state
Signal bus.But for the sake of clear explanation, various buses are all designated as bus system 805 in fig. 8.
Wherein, user interface 803 can include display, keyboard or pointing device (for example, mouse, trace ball
(trackball), touch-sensitive plate or touch-screen etc..
It is appreciated that the memory 802 in the embodiment of the present invention can be volatile memory or nonvolatile memory,
Or it may include both volatibility and nonvolatile memory.Wherein, nonvolatile memory can be read-only storage (Read-
Only Memory, ROM), programmable read only memory (Programmable ROM, PROM), the read-only storage of erasable programmable
Device (Erasable PROM, EPROM), Electrically Erasable Read Only Memory (Electrically EPROM, EEPROM) or
Flash memory.Volatile memory can be random access memory (Random Access Memory, RAM), and it is used as outside high
Speed caching.By exemplary but be not restricted explanation, the RAM of many forms can use, such as static RAM
(Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory
(Synchronous DRAM, SDRAM), double data speed synchronous dynamic RAM (Double Data Rate
SDRAM, DDRSDRAM), enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), synchronized links
Dynamic random access memory (Synch link DRAM, SLDRAM) and direct rambus random access memory (Direct
Ram bus RAM, DRRAM).The memory 802 of system and method described herein be intended to including but not limited to these and it is any
The memory of other suitable types.
In some embodiments, memory 802 stores following element, can perform module or data structure, or
Their subset of person, or their superset：Operating system 8021 and application program 8022.
Wherein, operating system 8021, comprising various system programs, such as ccf layer, core library layer, driving layer etc., it is used for
Realize various basic businesses and the hardware based task of processing.Application program 8022, include various application programs, such as media
Player (Media Player), browser (Browser) etc., for realizing various applied business, realize the embodiment of the present invention
The program of method may be embodied in application program 8022.
In embodiments of the present invention, mobile terminal 800 also includes：Storage on a memory 802 and can be on processor 801
The computer program of operation, computer program realize following steps when being performed by processor 801：Playing the first audio file
When, receive the switching command for switching to the second audio file；In the first of current time to default switching instant
Between in section, control sound source is entered in the way of default first path is away from user to the audio signal of first audio file
The signal transacting of row first, and the audio signal after playback process；In the default second time period after the switching instant,
Sound source is controlled in the way of default second path is close to user, the second letter is carried out to the audio signal of second audio file
Number processing, and the audio signal after playback process.
The method that the embodiments of the present invention disclose can apply in processor 801, or be realized by processor 801.
Processor 801 is probably a kind of IC chip, has the disposal ability of signal.In implementation process, the above method it is each
Step can be completed by the integrated logic circuit of the hardware in processor 801 or the instruction of software form.Above-mentioned processing
Device 801 can be general processor, digital signal processor (Digital Signal Processor, DSP), special integrated electricity
Road (Application Specific Integrated Circuit, ASIC), field programmable gate array (Field
Programmable Gate Array, FPGA) either other PLDs, discrete gate or transistor logic,
Discrete hardware components.It can realize or perform disclosed each method, step and the logic diagram in the embodiment of the present invention.It is general
Processor can be microprocessor or the processor can also be any conventional processor etc..With reference to institute of the embodiment of the present invention
The step of disclosed method, can be embodied directly in hardware decoding processor and perform completion, or with the hardware in decoding processor
And software module combination performs completion.Software module can be located at random access memory, flash memory, read-only storage, may be programmed read-only
In the ripe storage medium in this area such as memory or electrically erasable programmable memory, register.The storage medium is located at
Memory 802, processor 801 read the information in memory 802, with reference to the step of its hardware completion above method.
It is understood that embodiments described herein can use hardware, software, firmware, middleware, microcode or its
Combine to realize.Realized for hardware, processing unit can be realized in one or more application specific integrated circuit (Application
Specific Integrated Circuit, ASIC), digital signal processor (Digital Signal Processor,
DSP), digital signal processing appts (DSP Device, DSPD), programmable logic device (Programmable Logic
Device, PLD), field programmable gate array (Field Programmable Gate Array, FPGA), general processor,
In controller, microcontroller, microprocessor, other electronic units for performing herein described function or its combination.
Realize, can be realized herein by performing the module (such as process, function etc.) of function described herein for software
Described technology.Software code is storable in memory and passes through computing device.Memory can within a processor or
Realized outside processor.
Alternatively, as another embodiment, following steps can be also realized when computer program is performed by processor 801：
Obtain each sound that first audio file will play in the first time period at current time to default switching instant
First audio signal in road；Each first audio signal is inputted to default acoustic pressure and adjusts formula, and it is pre- according to first
If frequency, increase sound source in acoustic pressure adjustment formula and with the azran between account center, the sound after being handled
Frequency signal.
Alternatively, as another embodiment, following steps can be also realized when computer program is performed by processor 801：
Obtain each sound channel that second audio file will play in the default second time period after the switching instant
The second audio signal；Each second audio signal is inputted to default acoustic pressure and adjusts formula, and it is default according to second
Frequency, reduce sound source in acoustic pressure adjustment formula and with the azran between account center, the audio after being handled
Signal.
Alternatively, as another embodiment, the acoustic pressure adjustment formula is below equation：
Wherein, r is the azran, and θ is sound source and uses the default azimuth between account center, φ be sound source and
With the default elevation angle between account center；
p0(t) it is the time-domain expression of sound source and the free found field plural number acoustic pressure with account center；
Impulse response function for sound source and with the head correlation function between account center.
Alternatively, as another embodiment, following steps can be also realized when computer program is performed by processor 801：
Audio signal after the processing of each sound channel is synthesized, the audio signal after being synthesized simultaneously plays out.
Mobile terminal 800 can realize each process that mobile terminal is realized in previous embodiment, to avoid repeating, here
Repeat no more.
The mobile terminal 800 of the embodiment of the present invention, playing the first audio file by processor 801 and receiving switching
To the second audio file switching command when, in the first time period at current time to switching instant, control sound source according to pre-
If mode of the first path away from user, the first signal transacting is carried out to the audio signal of first audio file, makes user
Obtain the remote dimensional orientation effect of the first audio file；In the second time period after switching instant, control sound source according to
Default second path carries out secondary signal processing to the audio signal of second audio file, used close to the mode of user
Family obtains the second audio file in close dimensional orientation effect；Existed using virtual auditory space technology and HRTF signal transactings
Audio file adds audio effect processing when switching, and builds a kind of spatial impression of switching, improves Consumer's Experience.The present invention solves existing
Electronic equipment when playing audio file, it is more single to the audio effect processing of handoff procedure the problem of.
Referring to Fig. 9, another embodiment of the present invention provides a kind of mobile terminal 900.Specifically, the mobile end in Fig. 9
End 900 can be mobile phone, tablet personal computer, personal digital assistant (Personal Digital Assistant, PDA) or vehicle-mounted
Computer etc..
Mobile terminal 900 in Fig. 9 includes radio frequency (Radio Frequency, RF) circuit 910, memory 920, input
Unit 930, display unit 940, processor 950, Wi-Fi (Wireless Fidelity) module 960, voicefrequency circuit 970, electricity
Source 980.
Wherein, input block 930 can be used for the numeral or character information for receiving user's input, and generation and mobile terminal
The signal input that 900 user is set and function control is relevant.
Specifically, in the embodiment of the present invention, the input block 930 can include contact panel 931.Contact panel 931,
Referred to as touch-screen, collecting touch operation of the user on or near it, (for example user is any suitable using finger, stylus etc.
The operation of object or annex on contact panel 931), and corresponding attachment means are driven according to formula set in advance.It is optional
, contact panel 931 may include both touch detecting apparatus and touch controller.Wherein, touch detecting apparatus detection is used
The touch orientation at family, and the signal that touch operation is brought is detected, transmit a signal to touch controller；Touch controller is from touch
Touch information is received in detection means, and is converted into contact coordinate, then gives the processor 950, and can reception processing device
950 orders sent simultaneously are performed.Furthermore, it is possible to using multiple types such as resistance-type, condenser type, infrared ray and surface acoustic waves
Type realizes contact panel 931.Except contact panel 931, input block 930 can also include other input equipments 932, and other are defeated
Enter equipment 932 can include but is not limited to physical keyboard, function key (such as volume control button, switch key etc.), trace ball,
One or more in mouse, action bars etc..
Wherein, display unit 940 can be used for display by the information of user's input or be supplied to information and the movement of user
The various menu interfaces of terminal 900.Display unit 940 may include display panel 941, optionally, can use LCD or organic hairs
The forms such as optical diode (Organic Light-Emitting Diode, OLED) configure display panel 941.
It should be noted that contact panel 931 can cover display panel 941, touch display screen is formed, when the touch display screen is examined
After measuring the touch operation on or near it, processor 950 is sent to determine the type of touch event, is followed by subsequent processing device
950 provide corresponding visual output according to the type of touch event in touch display screen.
Touch display screen includes Application Program Interface viewing area and conventional control viewing area.The Application Program Interface viewing area
And arrangement mode of the conventional control viewing area does not limit, can be arranged above and below, left-right situs etc. can distinguish two it is aobvious
Show the arrangement mode in area.The Application Program Interface viewing area is displayed for the interface of application program.Each interface can be with
The interface element such as the icon comprising at least one application program and/or widget desktop controls.The Application Program Interface viewing area
It can also be the empty interface not comprising any content.The conventional control viewing area is used to show the higher control of utilization rate, for example,
Application icons such as settings button, interface numbering, scroll bar, phone directory icon etc..
In embodiments of the present invention, mobile terminal 900 also includes：Storage on a memory 920 and can be on processor 950
The computer program of operation, computer program realize following steps when being performed by processor 950：Playing the first audio file
When, receive the switching command for switching to the second audio file；In the first of current time to default switching instant
Between in section, control sound source is entered in the way of default first path is away from user to the audio signal of first audio file
The signal transacting of row first, and the audio signal after playback process；In the default second time period after the switching instant,
Sound source is controlled in the way of default second path is close to user, the second letter is carried out to the audio signal of second audio file
Number processing, and the audio signal after playback process.
Alternatively, as another embodiment, following steps can be also realized when computer program is performed by processor 950：
Obtain each sound that first audio file will play in the first time period at current time to default switching instant
First audio signal in road；Each first audio signal is inputted to default acoustic pressure and adjusts formula, and it is pre- according to first
If frequency, increase sound source in acoustic pressure adjustment formula and with the azran between account center, the sound after being handled
Frequency signal.
Alternatively, as another embodiment, following steps can be also realized when computer program is performed by processor 950：
Obtain each sound channel that second audio file will play in the default second time period after the switching instant
The second audio signal；Each second audio signal is inputted to default acoustic pressure and adjusts formula, and it is default according to second
Frequency, reduce sound source in acoustic pressure adjustment formula and with the azran between account center, the audio after being handled
Signal.
Alternatively, as another embodiment, the acoustic pressure adjustment formula is below equation：
Wherein, r is the azran, and θ is sound source and uses the default azimuth between account center, φ be sound source and
With the default elevation angle between account center；
p0(t) it is the time-domain expression of sound source and the free found field plural number acoustic pressure with account center；
Impulse response function for sound source and with the head correlation function between account center.
Alternatively, as another embodiment, following steps can be also realized when computer program is performed by processor 950：
Audio signal after the processing of each sound channel is synthesized, the audio signal after being synthesized simultaneously plays out.
Mobile terminal 900 can realize each process that mobile terminal is realized in previous embodiment, to avoid repeating, here
Repeat no more.
The mobile terminal 900 of the embodiment of the present invention, playing the first audio file by processor 950 and receiving switching
To the second audio file switching command when, in the first time period at current time to switching instant, control sound source according to pre-
If mode of the first path away from user, the first signal transacting is carried out to the audio signal of first audio file, makes user
Obtain the remote dimensional orientation effect of the first audio file；In the second time period after switching instant, control sound source according to
Default second path carries out secondary signal processing to the audio signal of second audio file, used close to the mode of user
Family obtains the second audio file in close dimensional orientation effect；Existed using virtual auditory space technology and HRTF signal transactings
Audio file adds audio effect processing when switching, and builds a kind of spatial impression of switching, improves Consumer's Experience.The present invention solves existing
Electronic equipment when playing audio file, it is more single to the audio effect processing of handoff procedure the problem of.
Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described herein
Member and algorithm steps, it can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
Performed with hardware or software mode, application-specific and design constraint depending on technical scheme.Professional and technical personnel
Described function can be realized using distinct methods to each specific application, but this realization is it is not considered that exceed
The scope of the present invention.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
In embodiment provided herein, it should be understood that disclosed apparatus and method, others can be passed through
Mode is realized.For example, device embodiment described above is only schematical, for example, the division of the unit, is only
A kind of division of logic function, can there is an other dividing mode when actually realizing, for example, multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, device or unit
Connect, can be electrical, mechanical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.
If the function is realized in the form of SFU software functional unit and is used as independent production marketing or in use, can be with
It is stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially in other words
The part to be contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are causing a computer equipment (can be
People's computer, server, or network equipment etc.) perform all or part of step of each embodiment methods described of the present invention.
And foregoing storage medium includes：USB flash disk, mobile hard disk, ROM, RAM, magnetic disc, CD etc. are various can be with Jie of store program codes
Matter.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (12)
- A kind of 1. audio file play method, it is characterised in that including：When playing the first audio file, the switching command for switching to the second audio file is received；In the first time period at current time to default switching instant, control sound source is according to default first path away from user Mode, the first signal transacting, and the audio signal after playback process are carried out to the audio signal of first audio file；In the default second time period after the switching instant, control sound source is according to default second path close to user's Mode, secondary signal processing, and the audio signal after playback process are carried out to the audio signal of second audio file.
- 2. according to the method for claim 1, it is characterised in that it is described at current time to default switching instant first In period, control sound source is in the way of default first path is away from user, to the audio signal of first audio file The step of carrying out the first signal transacting, including：Obtain first audio file will be played in the first time period at current time to default switching instant it is every First audio signal of individual sound channel；Each first audio signal is inputted to default acoustic pressure and adjusts formula, and according to the first predeterminated frequency, increases institute State acoustic pressure adjustment formula in sound source and with the azran between account center, the audio signal after being handled.
- 3. according to the method for claim 1, it is characterised in that it is described after the switching instant default second when Between in section, control sound source is entered in the way of default second path is close to user to the audio signal of second audio file The step of row secondary signal processing, including：Obtain second audio file will be played in the default second time period after the switching instant it is each Second audio signal of sound channel；Each second audio signal is inputted to default acoustic pressure and adjusts formula, and according to the second predeterminated frequency, reduces institute State acoustic pressure adjustment formula in sound source and with the azran between account center, the audio signal after being handled.
- 4. according to the method in claim 2 or 3, it is characterised in that the acoustic pressure adjustment formula is below equation：Wherein, r is the azran, and θ is sound source and is sound source and user with the default azimuth between account center, φ The default elevation angle between head center；p0(t) it is the time-domain expression of sound source and the free found field plural number acoustic pressure with account center；Impulse response function for sound source and with the head correlation function between account center.
- 5. according to the method in claim 2 or 3, it is characterised in that the step of audio signal after the playback process, also Including：Audio signal after the processing of each sound channel is synthesized, the audio signal after being synthesized simultaneously plays out.
- A kind of 6. mobile terminal, it is characterised in that including：Command reception module, for when playing the first audio file, receiving the switching for switching to the second audio file Instruction；First processing module, in the first time period at current time to default switching instant, control sound source to be according to pre- If mode of the first path away from user, the first signal transacting is carried out to the audio signal of first audio file, and play Audio signal after processing；Second processing module, in the default second time period after the switching instant, control sound source to be according to default Second path is close to the mode of user, the audio signal progress secondary signal processing to second audio file, and at broadcasting Audio signal after reason.
- 7. mobile terminal according to claim 6, it is characterised in that the first processing module is used for：Obtain first audio file will be played in the first time period at current time to default switching instant it is every First audio signal of individual sound channel；Each first audio signal is inputted to default acoustic pressure and adjusts formula, and according to the first predeterminated frequency, increases institute State acoustic pressure adjustment formula in sound source and with the azran between account center, the audio signal after being handled.
- 8. mobile terminal according to claim 6, it is characterised in that the Second processing module is used for：Obtain second audio file will be played in the default second time period after the switching instant it is each Second audio signal of sound channel；Each second audio signal is inputted to default acoustic pressure and adjusts formula, and according to the second predeterminated frequency, reduces institute State acoustic pressure adjustment formula in sound source and with the azran between account center, the audio signal after being handled.
- 9. the mobile terminal according to claim 7 or 8, it is characterised in that the acoustic pressure adjustment formula is below equation：Wherein, r is the azran, and θ is sound source and is sound source and user with the default azimuth between account center, φ The default elevation angle between head center；p0(t) it is the time-domain expression of sound source and the free found field plural number acoustic pressure with account center；Impulse response function for sound source and with the head correlation function between account center.
- 10. the mobile terminal according to claim 7 or 8, it is characterised in that also include：Signal synthesizing module, for the audio signal after the processing of each sound channel to be synthesized, the audio signal after being synthesized is simultaneously Play out.
- A kind of 11. mobile terminal, it is characterised in that including：Memory, processor and it is stored on the memory and can be in institute The computer program run on processor is stated, the computer program is realized such as claim 1 to 5 during the computing device Any one of audio file play method in step.
- 12. a kind of computer-readable recording medium, it is characterised in that be stored with computer on the computer-readable recording medium Program, realize that the audio file as any one of claim 1 to 5 plays when the computer program is executed by processor Step in method.
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| CN107707742B (en) | 2020-01-03 |
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