CN106028226A - Sound playing method and equipment - Google Patents
Sound playing method and equipment Download PDFInfo
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- CN106028226A CN106028226A CN201610366227.7A CN201610366227A CN106028226A CN 106028226 A CN106028226 A CN 106028226A CN 201610366227 A CN201610366227 A CN 201610366227A CN 106028226 A CN106028226 A CN 106028226A
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- speaker
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/02—Spatial or constructional arrangements of loudspeakers
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/14—Control of operating function, e.g. switching from recording to reproducing by sensing movement or position of head, e.g. means moving in correspondence with head movements
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
- Stereophonic System (AREA)
Abstract
The invention provides a sound playing method and equipment. The sound playing method comprises the steps of: determining position information of a listening site; determining position information of a plurality of speakers respectively relative to the listening site; determining playing setting parameters of each speaker based on the position information of each speaker relative to the listening site and a parameter setting rule; adjusting sound of each speaker based on the playing setting parameters to enable sound from each speaker to synchronously reach the listening site and to make volume at the listening site the same. In the method, the sound of each speaker is adjusted based on the playing setting parameters to enable the sound from each speaker to synchronously reach the listening site with the same volume, and a possibility of a condition that sounds from different speakers are different, which is caused by factors such as different transmission distances, is reduced, so that a user can feel a better surrounding stereo effect, thereby greatly improving the user experience.
Description
Technical field
The present invention relates to terminal unit technical field, specifically, the present invention relates to a kind of sound and play
Method and a kind of audio playing device.
Background technology
People has the ability judging sound in locus, and the ear of people is that comparison is sensitive, and it is not
It is only capable of the direction judging sound source, also is able to judge the distance of sound source and giving great volume of sound source simultaneously
Little.Why people can interpolate that the sound reason in locus is due to the ear of sound transmission the pure man
Time harmony pressure reduction different, the brain of people utilize just this difference build one virtual
Three dimensions thus sound source is carried out location determination.The ear of people is positioning sound source when
Needing to provide to auditory nerve maincenter to judge location information, this judgement location information comes from sound transmission
Time difference and the acoustic pressure of the ear of the pure man are poor.But, people's location in three dimensions is relative
It is random rather than middle in the position of audio playing device, therefore, people can be caused to feel to play
The size of sound and the time difference of broadcasting sound.
In prior art, controlled the audio playing devices such as audio amplifier by power amplifying device and carry out sound broadcasting
Mode generally, controls multiple audio amplifier and plays the sound of power amplifying device output with identical volume simultaneously,
But audio playing device play sound transmission there are differences to volume during user and sound also
Non-is to synchronize, and the sound surround sound result of broadcast causing user to receive is poor, and user listens to
Experience Degree is the highest.
Summary of the invention
For overcoming above-mentioned technical problem or solving above-mentioned technical problem at least in part, below special proposition
Technical scheme:
One embodiment of the present of invention proposes a kind of sound playing method, including:
Determine the positional information listening to place；
Determine that multiple speaker is respectively relative to listen to the positional information in place；
According to each speaker relative to listening to the positional information in place, and rule is set based on parameter comes
Determine that the broadcasting of each speaker arranges parameter；
Set the parameters to adjust the sound of each speaker, so that each speaker sends based on playing
Synchronous sound reach to listen to place, and listening to, there is at place position identical volume.
Alternatively, the method also includes:
Adjust the position of each speaker.
Alternatively, the method also includes:
When behind the position adjusting speaker, readjust the sound of each speaker, so that each is raised
The synchronous sound that sound device sends reaches to listen to place, and has identical sound at place position listening to
Amount.
Alternatively, the method also includes:
When detecting that the position listening to place changes, readjust the sound of each speaker,
So that the synchronous sound that each speaker sends reaches to listen to place, and have at place position listening to
There is identical volume.
Alternatively, the method also includes:
When the position listening to place changes, adjust the sound of each speaker and the position of speaker
Put so that the sound field centered by listening to position is kept in balance in same radius.
Preferably, listen to place and refer to position or the center of multiple user of sole user.
Preferably, play and parameter is set includes volume and/or broadcast time-delay.
Preferably, parameter arrange rule for arrange between each speaker relative to volume and/
Or relative broadcast time-delay.
Preferably, according to each speaker relative to listening to the positional information in place, and set based on parameter
Put rule to determine the volume of each speaker, including:
According to each speaker relative to listening to the positional information in place, determine that each speaker sends
Sound listening to the volume difference at place；
The volume of each speaker is determined, to guarantee that multiple sound is play according to volume difference
The sound that equipment sends has identical volume listening at place.
Preferably, according to each speaker relative to listening to the positional information in place, and set based on parameter
Put rule to determine the broadcast time-delay of each speaker, including:
According to each speaker relative to listening to the positional information in place, determine that each speaker is by sound
Sound propagates to the time difference listened at place；
According to time difference determine between each speaker relative to broadcast time-delay so that each is raised one's voice
The synchronous sound that device sends reaches to listen to place.
Alternatively, the method also includes:
Obtain the frequency playing sound of multiple speaker；
According to frequency and multiple speaker relative to barrier and the positional information of listening to place, determine
Echo degree of disturbance corresponding with each speaker；
When echo degree of disturbance is more than the interference threshold preset, the broadcasting to each speaker arranges parameter
It is adjusted correspondingly.
Another embodiment of the present invention proposes a kind of audio playing device, including:
Multiple speakers；
Primary importance determines module, for determining the positional information listening to place；
The second position determines module, for determining each speaker relative to the position letter listening to place
Breath；
First adjusting module, for according to each speaker relative to listening to the positional information in place, and
Rule is set based on parameter and determines that the broadcasting of each speaker arranges parameter；
First control module, for adjusting the sound of each speaker by controlling the first adjusting module
Sound, so that the synchronous sound that each speaker sends reaches to listen to place, and is listening to place position
Place has identical volume.
Alternatively, this equipment also includes:
Second adjusting module, for adjusting the position of speaker；
Second control module, for adjusting the position of speaker by controlling the second adjusting module.
Alternatively, the position of speaker is adjusted by controlling the second adjusting module when the second control module
After, the first control module readjusts the sound of each speaker by controlling the first adjusting module, with
The synchronous sound that each speaker is sent reaches to listen to place, and has at place position listening to
Identical volume.
Alternatively, when primary importance determines that module detects that listening to the position in place changes,
One control module controls the first adjusting module and readjusts the sound of each speaker, so that each is raised
The synchronous sound that sound device sends reaches to listen to place, and has identical sound at place position listening to
Amount.
Alternatively, when primary importance determines that module detects that listening to the position in place changes,
One control module controls the first adjusting module to adjust the sound of each speaker, the second control module control
Make the second adjusting module to adjust the position of speaker so that the sound field centered by listening to position is same
Keep in balance in the range of Radius.
Preferably, listen to place and refer to position or the center of multiple user of sole user.
Preferably, play and parameter is set includes volume and/or broadcast time-delay.
Preferably, parameter arrange rule for arrange between each speaker relative to volume and/
Or relative broadcast time-delay.
Preferably, the first adjusting module includes:
First difference value determining unit, for believing relative to the position listening to place according to each speaker
Breath, determines that the sound that each speaker sends is listening to the volume difference at place；
Volume determines unit, for determining the volume of each speaker according to volume difference,
To guarantee that sound that multiple audio playing device sends has identical volume listening at place.
Preferably, the first adjusting module includes:
Second difference value determining unit, for believing relative to the position listening to place according to each speaker
Breath, determine each speaker by sound transmission to the time difference listened at place；
Time delay determines unit, for according to time difference determine between each speaker relative to broadcasting prolong
Time, so that the synchronous sound that each speaker sends reaches to listen to place.
Alternatively, this equipment also includes:
Frequency acquisition module, for obtaining the frequency playing sound of multiple speaker；
Degree of disturbance determines module, for relative to barrier and listening on ground according to frequency and multiple speaker
The positional information of point, determines echo degree of disturbance corresponding with each speaker；
3rd adjusting module, for when echo degree of disturbance is more than the interference threshold preset, raising each
The broadcasting of sound device arranges parameter and is adjusted correspondingly.
Technical scheme solves different from the relative distance listening between place multiple raise
The sound that sound device sends arrives and listens to the problem that sound produced by place there are differences.Raise according to multiple
Sound device is relative to listening to the positional information in place, and arranges rule based on parameter and determine each speaker
Broadcasting parameter is set, and multiple speaker theoretical based on sound transmission is relative to the position listening to place
Confidence breath determine sound transmission to listening to the size of difference that place produces, further according to determining the difference obtained
Different size adjusts the broadcasting of each speaker and arranges parameter；Finally, parameter is set based on broadcasting,
Control each speaker and carry out sound broadcasting so that the sound that speaker sends is same with same sound size
Step propagates to listen to place, weakens the multiple speakers produced due to the not equal factor of propagation distance and sends out
The situation that the sound that goes out is different, listens to the user at place experience preferably around three-dimensional so that being in
Sound effective value, is greatly improved user experience.
Aspect and advantage that the present invention adds will part be given in the following description, and these will be from following
Description in become obvious, or recognized by the practice of the present invention.
Accompanying drawing explanation
Present invention aspect that is above-mentioned and/or that add and advantage are from retouching embodiment below in conjunction with the accompanying drawings
Will be apparent from easy to understand in stating, wherein:
Fig. 1 is the schematic flow sheet of the sound playing method of one embodiment of the invention；
Fig. 2 is the speaker of the sound playing method of one embodiment of the invention and the position listening to place
Put the schematic diagram of relation；
Fig. 3 is the structural representation of the audio playing device of another embodiment of the present invention.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, its
In the most same or similar label represent same or similar element or have same or like
The element of function.The embodiment described below with reference to accompanying drawing is exemplary, is only used for explaining this
Invention, and be not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative used herein
" one ", " one ", " described " and " being somebody's turn to do " may also comprise plural form.Should manage further
Solve, the wording used in the description of the present invention " include " referring to existing described feature, integer,
Step, operation, element and/or assembly, but it is not excluded that existence or add one or more other
Feature, integer, step, operation, element, assembly and/or their group.It should be understood that when me
Claim element to be " connected " or during " coupled " to another element, it can be directly connected or coupled to
Other elements, or intermediary element can also be there is.Additionally, " connection " used herein or " coupling
Connect " wireless connections can be included or wireless couple.Wording "and/or" used herein includes one
Or more be associated list the whole of item or any cell and all combinations.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein
(including technical term and scientific terminology), have and the those of ordinary skill in art of the present invention
Be commonly understood by identical meaning.Should also be understood that those arts defined in such as general dictionary
Language, it should be understood that there is the meaning consistent with the meaning in the context of prior art, and remove
Non-as here by specific definitions, otherwise will not with idealization or the most formal implication explain.
Those skilled in the art of the present technique are appreciated that " terminal " used herein above, " terminal sets
Standby " both included the equipment of wireless signal receiver, it only possesses the reception of wireless signals of non-emissive ability
The equipment of device, again include receive and launch hardware equipment, its have can on bidirectional communication link,
Carry out the reception of two-way communication and launch the equipment of hardware.This equipment may include that honeycomb or other
Communication equipment, it has single line display or multi-line display or does not has the honeybee of multi-line display
Nest or other communication equipments；PCS (Personal Communications Service, personal communication system
System), it can process with combine voice, data, fax and/or its communication ability；PDA(Personal
Digital Assistant, personal digital assistant), it can include radio frequency receiver, pager, mutually
The access of networking/Intranet, web browser, notepad, calendar and/or GPS (Global Positioning
System, global positioning system) receptor；Conventional laptop and/or palmtop computer or other set
Standby, its have and/or include the conventional laptop of radio frequency receiver and/or palmtop computer or other
Equipment." terminal " used herein above, " terminal unit " can be portable, can transport, pacify
It is contained in the vehicles (aviation, sea-freight and/or land), or is suitable for and/or is configured to
Local runtime, and/or with distribution form, any other position operating in the earth and/or space is run.
" terminal " used herein above, " terminal unit " can also is that communication terminal, access terminals, sound
Pleasure/video playing terminal, such as, can be that (Mobile Internet Device moves for PDA, MID
Internet device) and/or there is the mobile phone of music/video playing function, it is also possible to it is Intelligent electric
Depending on equipment such as, Set Top Boxes.
It should be noted that sound playing method can be set by the mobile terminal that user is held in the present invention
Standby realization, the sound broadcasting of multiple speakers is controlled by the mobile terminal device held by user
System；It is, of course, also possible to realize sound in the present invention by the intelligent terminal being arranged in speaker
Player method, is play the sound of multiple speakers by the intelligent terminal being arranged in speaker
It is controlled.
Fig. 1 is the schematic flow sheet of the sound playing method of one embodiment of the invention.
Step S110: determine the positional information listening to place.
Preferably, listen to place and refer to position or the center of multiple user of sole user.
Specifically, when listening to the center that place is multiple user, can determine each the most respectively
Individual user location respectively, determines according to the position of each user in the geometry of multiple user subsequently
The heart or geographic center position, and using geometric center or geographic center position as listening to place.
Step S120: determine that multiple speaker is respectively relative to listen to the positional information in place.
Preferably, multiple speaker can be obtained by range sensor to be respectively relative to listen to place
Positional information.
Wherein, range sensor includes but not limited to sound localization sensor, optical positioning sensors etc..
As the preferred embodiment of the present invention, sound localization sensor is used to realize technical solution of the present invention.Sound source
Alignment sensor can gather the position of sound wave localization of sound source, therefore, when user is listening on place
When sending sound, sound localization sensor on a speaker is installed and can collect the sound that user sends
The sound wave of sound, and the place of listening to residing for user is positioned, to obtain according to the sound wave collected
Take speaker relative to the positional information listening to place.As in figure 2 it is shown, be one embodiment of the invention
The schematic diagram of speaker and the position relationship listening to place of sound playing method.
It should be noted that it is relative when installing the acquisition speaker of sound localization sensor on a speaker
After the positional information listening to place, can be such as Wi-Fi transmission or bluetooth in the way of being wirelessly transferred
Transmit and multiple speakers are sent to terminal unit, terminal unit relative to the positional information listening to place
After this information can being carried out after receiving multiple speaker relative to the positional information listening to place
Continuous analysis and process.
Step S130: according to each speaker relative to listening to the positional information in place, and based on ginseng
Number arranges rule and arranges parameter to the broadcasting determining each speaker
Preferably, play and parameter is set includes but not limited to volume and/or broadcast time-delay.
Preferably, parameter arrange rule for arrange between each speaker relative to volume and/
Or relative broadcast time-delay.
Preferably, according to each speaker relative to listening to the positional information in place, and set based on parameter
Put rule and include step S131 and step S132 to the step determining the volume of each speaker:
Step S131: according to multiple speakers relative to listening to the positional information in place, determine that each is raised
The sound that sound device sends is listening to the volume difference at place；Step S132: according to giving great volume
Little difference determines the volume of each speaker, to guarantee that the sound that multiple speaker sends is being listened to
There is at place identical volume.
First, according to multiple speakers relative to listening to the positional information in place, determine that each is raised one's voice
The sound that device sends is listening to the volume difference at place.
Specifically, it is first depending on multiple speaker and includes many relative to the positional information foundation listening to place
Individual speaker is relative to the coordinate system listening to place position relation；Then, count respectively according to this coordinate system
Calculate each speaker relative to the distance listening to place；Sound is play subsequently, based on each speaker
Watt level, each speaker are relative to listening to the distance in place, by propagation distance and the sound of sound
The functional relation of the loss relation of sound determines that the sound that each speaker sends is listening to place respectively
The watt level at place；Subsequently, calculate the sound that each speaker sends and listen to giving great volume at place
Little difference.
Finally, determine the volume of each speaker according to volume difference, to guarantee multiple raising
The sound that sound device sends has identical volume listening at place.
Such as, 4 speakers are respectively speaker A, speaker B, speaker C and speaker D,
Speaker A, speaker B, speaker C and speaker D listen to place relative to user place
Distance be respectively 1 meter, 2 meters, 1 meter and 2 meters, the power of each speaker initial play sound is
20dB；The watt level of sound, 4 speakers are play relative to user place based on 4 speakers
The distance listening to place, by the functional relation of the propagation distance of sound Yu the loss relation of sound
Determine that sound that speaker A, speaker B, speaker C and speaker D send is user respectively
The watt level at place of listening at place is respectively 19dB, 18dB, 19dB and 18dB, wherein,
Sound that speaker distant at place sends is listened in communication process relative to user place
The power of middle loss is the most；Then, calculate speaker A, speaker B, speaker C and raise
The sound that sound device D the sends volume difference at place of listening at user place is 1dB；?
After, according to the functional relationship of the propagation distance of volume difference and sound with the loss relation of sound
Formula improves speaker B accordingly, speaker D sends the percentage ratio of power of sound.
Preferably, according to each speaker relative to listening to the positional information in place, and set based on parameter
Put rule and include step S133 and step S134 to the step determining the broadcast time-delay of each speaker:
Step S133: according to each speaker relative to listening to the positional information in place, determine that each is raised
Sound device by sound transmission to the time difference listened at place；Step S134: true according to time difference
Between each speaker fixed relative to broadcast time-delay so that the synchronous sound that each speaker sends arrives
Reach and listen to place.
First, according to each speaker relative to listening to the positional information in place, determine that each is raised one's voice
Device by sound transmission to the time difference listened at place.
Specifically, it is first depending on each speaker and includes many relative to the positional information foundation listening to place
Individual speaker is relative to the coordinate system listening to place position relation；Then, count respectively according to this coordinate system
Calculate each speaker relative to the distance listening to place；Subsequently, based on each speaker relative to listening to
The speed that the distance in place and sound are propagated in atmosphere determines that each speaker is by sound transmission respectively
To listening to the time needed at place；Finally, based on each speaker by sound transmission to listening to place
Place need time determine respectively each speaker by sound transmission to the time difference listened at place.
Finally, according to time difference determine between each speaker relative to broadcast time-delay so that respectively
The synchronous sound that individual speaker sends arrives and listens to place.
Such as, 4 speakers are respectively speaker A, speaker B, speaker C and speaker D,
Speaker A, speaker B, speaker C and speaker D listen to place relative to user place
Distance be respectively 1 meter, 2 meters, 1 meter and 2 meters；Based on 4 speakers relative to user place
The distance listening to place and speed 340M/s propagated in atmosphere of sound, determine speaker A,
Speaker B, speaker C and speaker D listen to place needs by sound transmission to user place
Time be respectively 2.9ms, 5.9ms, 2.9ms and 5.9ms；Then, will based on 4 speakers
Sound transmission to the time listening to place needs at user place determines speaker A, speaker B, raises
The time difference listening to place of sound transmission to user place is 3ms by sound device C and speaker D；
Finally, determine that speaker A, speaker C are relative to speaker B, speaker D according to time difference
Postpone 3ms and play sound, so that the sound that 4 speakers send is in the receipts relative to user place
Listen what place synchronously arrived at user place in the case of there is different distances to listen to place.
The most such as, 3 speakers are respectively speaker A, speaker B and speaker C, speaker
A, speaker B and speaker C are in the position on three summits of equilateral triangle, and relative to
The distance listening to place at user place is respectively 1 meter, 2 meters and 1 meter；Based on 3 speaker phases
The distance in place listened to for user place and speed 340M/s that sound is propagated in atmosphere, really
Determine speaker A, speaker B and speaker C to be needed in the place of listening to of sound transmission to user place
The time wanted is respectively 2.9ms, 5.9ms and 2.9ms；Then, based on 3 speakers, sound is passed
The time listening to place needs casting to user place determines that speaker A, speaker C are relative to raising one's voice
The time difference listening to place of sound transmission to user place is 3ms by device B；Finally, according to time
Between difference determine speaker A, speaker C relative to speaker B postpone 3ms play sound, with
Make sound that 3 speakers send relative to user place listen to place exist different away from
Synchronously arrive at user place in the case of from listens to place.Step S140: ginseng is set based on broadcasting
Number adjusts the sound of each speaker, so that the synchronous sound that each speaker sends reaches to listen to
Place, and listening to, there is at place position identical volume.
Specifically, generate play control based on volume and/or the broadcast time-delay for each speaker
Signal processed, the synchronous sound sent to control each speaker of adjustment reaches to listen to place, and is listening to
There is at place position identical volume.
It should be noted that when speaker sends sound, there is the more sound result of broadcast that affects
Factor, the sound transmission caused except the difference according to sound transmission distance is produced at place to listening to
Raw is non-outside stereo sound effect fruit, encounters barrier due to sound and returns the echo caused and also can do
Disturb the effect that sound is play.When above-mentioned interference is more than the interference threshold preset, the audition of user can be given
Experience Degree brings bigger negative effect, and owing to echo is disturbed, the sound wave of the sound that speaker sends passes
There is deformation when listening to place in cast to user place, the sound that user hears can lose original sound
Color.Therefore, provide below a kind of technical scheme with weaken sound encounter barrier return caused return
The interference of sound, thus improve the whole structure that sound is play, improve user experience.
It should be noted that a kind of common echo interference is caused by pectination effect.Speaker is sent out
The sound gone out, is arrived by two kinds of approach and listens to place, and one is that user is arrived in straightline propagation, referred to as
Direct sound wave, another kind is to carry out once or many through the surface of the barriers such as wall, ceiling, floor
Secondary reflection arrives and listens to place, referred to as echo.Due to the path length of echo process, compare direct sound wave
Arrival is listened to evening place time, therefore produces time difference in communication process, and time difference is mapped in sound wave
Corresponding phase contrast can be produced.Product at place is being listened to according to the interference theory of ripple, echo and direct sound wave
Raw interference effect, so that the frequency response curve of sound wave produces pectination effect.
Pectination effect can make frequency response serious deterioration, it is thus regarded that echo is harmful.Pectination effect
Envelope mainly due to the different sound of the frequency acoustic of different wave or phase place occurs that superposition is imitated
The sound waveform containing labyrinth that should be formed afterwards.
Alternatively, sound playing method also includes step S150, step S160 and step S170: step
Rapid S150: obtain the frequency playing sound of multiple speaker；Step S160: according to frequency and many
Individual speaker, relative to barrier and the positional information of listening to place, determines corresponding to each speaker
Echo degree of disturbance；Step S170: if echo degree of disturbance is more than the interference threshold preset, then to respectively
The broadcasting of individual speaker arranges parameter and is adjusted correspondingly.
Preferably, the broadcasting to each speaker arranges the step that parameter is adjusted correspondingly and includes:
According to frequency and multiple speaker relative to barrier and the positional information of listening to place, determine each
Between speaker relative to broadcast time-delay.
Specifically, first according to the sound currently sent, obtain speaker and send the frequency of sound；Connect
, determine that speaker sends the wavelength of sound according to the relation function of frequency and frequency and wavelength；With
After, according to speaker relative to barrier and the positional information of listening to place, calculate each respectively and raise one's voice
Device sends sound and is propagated directly to listen to place from speaker and each speaker sends sound from sounding
Equipment propagates to barrier, then is back to listen to the distance in place by barrier；Then, wavelength basis
And above-mentioned calculated distance determines that each speaker sends the sound wave of sound from audible device respectively
It is propagated directly to listen to place and each speaker sends sound and propagates to barrier from audible device, then
It is back to listen to the phase contrast that position produces by barrier；Subsequently, relatively above-mentioned phase contrast, determine with
Each speaker corresponding echo degree of disturbance；Finally, if echo degree of disturbance is more than the interference threshold preset,
Then the broadcast time-delay of each speaker is adjusted correspondingly.
Preferably, multiple speakers are specially four, and respectively in the front of user, rear, left
And right is arranged.
It should be noted that in order to obtain more preferable Consumer's Experience, speaker can be set to four,
And it is placed in the front of user, rear, left and right respectively.
Alternatively, sound playing method also includes step S180: adjust the position of each speaker.
It should be noted that the scheme that the embodiment of the present invention provides is arranged not only by based on playing
Parameter adjusts the sound of each speaker, so that the synchronous sound that each speaker sends reaches to receive
Listen place, and listening to, there is at place position identical volume, and can raise by adjusting each
The above-mentioned same sound result of broadcast of position uppick of sound device.Specifically, if speaker is provided with
May be used for the track slided, then can adjust the position of each speaker so that each speaker exists
Equilibrium is reached, to ensure that good sound plays effect relative to the sound of the position uppick listening to place
Really.
Alternatively, sound playing method also includes step S190: when behind the position adjusting speaker,
Readjust the sound of each speaker, so that the synchronous sound that each speaker sends reaches to listen to
Place, and listening to, there is at place position identical volume.
It should be noted that the scheme that the embodiment of the present invention provides can also be raised one's voice by adjusting in combination
The position of device and the sound of each speaker of adjustment, so that the synchronous sound that each speaker sends reaches
To listening to place, and listening to, there is at place position identical volume.
Alternatively, sound playing method also includes: when detecting that the position listening to place changes,
Readjust the sound of each speaker, so that the synchronous sound that each speaker sends reaches to listen to
Place, and listening to, there is at place position identical volume.
It should be noted that user place, location can be refreshed by range sensor with predetermined frequency
Listen to place and the multiple speakers distance relative to position, when detecting that this distance changes,
Readjust the sound of each speaker, so that the synchronous sound that each speaker sends reaches to listen to
Place, and listening to, there is at place position identical volume.
Alternatively, sound playing method also includes: when the position listening to place changes, and adjusts
The sound of each speaker and the position of speaker so that the sound field centered by listening to position is same
Keep in balance in radius.
It should be noted that when by range sensor detect multiple user place listen to place with
When multiple speakers change relative to the distance of position, it is first determined the geometric center position of multiple users
Putting, the position of the most multiple users, when with this center for the center of circle, just falls at the circle of same Radius
Position in limit, therefore, according to the sound of geometric center each speaker of position adjustment of multiple users
And the position of speaker so that the sound field centered by listening to position keeps equal in same radius
Weighing apparatus.Technical scheme solves different from the relative distance listening between place multiple raise one's voice
The sound that device sends arrives and listens to the problem that sound produced by place there are differences.Raise one's voice according to multiple
Device is relative to listening to the positional information in place, and arranges rule based on parameter and determine each speaker
Broadcasting arranges parameter, and multiple speaker theoretical based on sound transmission is relative to the position listening to place
Information determine sound transmission to listening to the size of difference that place produces, further according to determining the difference obtained
Size adjust the broadcasting of each speaker parameter be set；Finally, parameter is set based on broadcasting, control
Make each speaker and carry out sound broadcasting so that the sound that speaker sends synchronizes with same sound size
Propagate to listen to place, weaken the multiple speakers produced due to the not equal factor of propagation distance and send
The different situation of sound listen to the user at place experience more preferable surround sound so that being in
Effect, is greatly improved user experience.
Fig. 3 is the structural representation of the audio playing device of another embodiment of the present invention.This equipment includes
Multiple speakers 310, primary importance determine that module 320, the second position determine module 330, first
Adjusting module 340 and the first control module 350.Concrete below for above-mentioned speaker and each module
Effect illustrates:
Multiple speakers 310 can be loudspeaker box combination equipment conventional in daily life.
Primary importance determines that module 320 determines the positional information listening to place.
Preferably, listen to place and refer to position or the center of multiple user of sole user.
Specifically, when listening to the center that place is multiple user, primary importance determines module
320 positions that can determine multiple user the most respectively, determine many according to the position of multiple users subsequently
The geometric center position of individual user.
The second position determines that module 330 determines each speaker 310 relative to the position letter listening to place
Breath.
Preferably, the second position determines that module 330 can obtain multiple speaker by range sensor
310 are respectively relative to listen to the positional information in place.
Wherein, range sensor includes but not limited to sound localization sensor, optical positioning sensors etc..
As the preferred embodiment of the present invention, sound localization sensor is used to realize technical solution of the present invention.Sound source
Alignment sensor can gather the position of sound wave localization of sound source, therefore, when user is listening on place
When sending sound, sound localization sensor can collect the sound wave of the sound that user sends, and depends on
According to the sound wave collected, the place of listening to residing for user is positioned, relative to obtain speaker 310
In the positional information listening to place.As in figure 2 it is shown, be the sound broadcasting side of one embodiment of the invention
The schematic diagram of the speaker of method and the position relationship listening to place.
It should be noted that when sound localization sensor obtains speaker 310 relative to listening to place
After positional information, can raise multiple such as Wi-Fi transmission or Bluetooth transmission in the way of being wirelessly transferred
Sound device 310 sends to terminal unit relative to the positional information listening to place, and terminal unit is receiving
Multiple speakers 310 can carry out follow-up point to this information relative to after listening to the positional information in place
Analysis and process.
First adjusting module 340 according to each speaker 310 relative to listening to the positional information in place,
And rule is set based on parameter determines that the broadcasting of each speaker 310 arranges parameter.
Preferably, play and parameter is set includes but not limited to volume and/or broadcast time-delay.
Preferably, parameter arrange rule for arrange between each speaker 310 relative to volume
And/or relative broadcast time-delay.
Preferably, the first adjusting module 340 includes that the first difference value determining unit and volume determine unit:
First difference value determining unit, comes really relative to listening to the positional information in place according to multiple speakers 310
The sound that each speaker 310 fixed sends is listening to the volume difference at place；Volume determines list
Unit determines the volume of each speaker 310 according to volume difference, to guarantee multiple speaker
310 sound sent have identical volume listening at place.
First, the first difference value determining unit according to multiple speakers 310 relative to the position listening to place
Information, determines that the sound that each speaker 310 sends is listening to the volume difference at place.
Specifically, first, the first difference value determining unit according to multiple speakers 310 relative to listening on ground
The positional information of point is set up and is included that multiple speaker 310 is relative to the coordinate listening to place position relation
System；Then, each speaker 310 is calculated respectively relative to the distance listening to place according to this coordinate system；
Subsequently, based on each speaker 310 play the watt level of sound, each speaker 310 relative to
Listen to the distance in place, divided by the functional relation of the propagation distance of sound with the loss relation of sound
Do not determine that the sound that each speaker 310 sends is listening to the watt level at place；Subsequently, calculate
The sound that each speaker 310 sends is listening to the volume difference at place.
Finally, volume determines that unit determines giving great volume of each speaker 310 according to volume difference
Little, to guarantee that sound that multiple speaker 310 sends has identical volume listening at place.
Such as, 4 speakers are respectively speaker A, speaker B, speaker C and speaker D,
Speaker A, speaker B, speaker C and speaker D listen to place relative to user place
Distance be respectively 1 meter, 2 meters, 1 meter and 2 meters, the power of each speaker initial play sound is
20dB；The watt level of sound, 4 speakers are play relative to user place based on 4 speakers
The distance listening to place, by the functional relation of the propagation distance of sound Yu the loss relation of sound
Determine that sound that speaker A, speaker B, speaker C and speaker D send is user respectively
The watt level at place of listening at place is respectively 19dB, 18dB, 19dB and 18dB, wherein,
Sound that speaker distant at place sends is listened in communication process relative to user place
The power of middle loss is the most；Then, calculate speaker A, speaker B, speaker C and raise
The sound that sound device D the sends volume difference at place of listening at user place is 1dB；?
After, according to the functional relationship of the propagation distance of volume difference and sound with the loss relation of sound
Formula improves speaker B accordingly, speaker D sends the percentage ratio of power of sound.
Preferably, the first adjusting module 340 includes that the second difference value determining unit and time delay determine unit:
Second difference value determining unit, comes really relative to listening to the positional information in place according to each speaker 310
Determine each speaker 310 by sound transmission to the time difference listened at place；Time delay determines unit root
According to time difference determine between each speaker 310 relative to broadcast time-delay so that each speaker
The synchronous sound that 310 send arrives and listens to place.
First, the second difference value determining unit according to each speaker 310 relative to the position listening to place
Information, determine each speaker 310 by sound transmission to the time difference listened at place.
Specifically, first, the second difference value determining unit according to each speaker 310 relative to listening on ground
The positional information of point is set up and is included that multiple speaker 310 is relative to the coordinate listening to place position relation
System；Then, each speaker 310 is calculated respectively relative to the distance listening to place according to this coordinate system；
Propagate in atmosphere relative to the distance and sound listening to place subsequently, based on each speaker 310
Speed determine respectively each speaker 310 by sound transmission to listen at place need time；?
After, based on each speaker 310, sound transmission is determined respectively respectively to listening to the time needed at place
Individual speaker 310 by sound transmission to the time difference listened at place.
Finally, time delay determine unit according to time difference determine between each speaker 310 relative to broadcast
Put time delay, so that the synchronous sound that each speaker 310 sends arrives and listens to place.
Such as, 4 speakers are respectively speaker A, speaker B, speaker C and speaker D,
Speaker A, speaker B, speaker C and speaker D listen to place relative to user place
Distance be respectively 1 meter, 2 meters, 1 meter and 2 meters；Based on 4 speakers relative to user place
The distance listening to place and speed 340M/s propagated in atmosphere of sound, determine speaker A,
Speaker B, speaker C and speaker D listen to place needs by sound transmission to user place
Time be respectively 2.9ms, 5.9ms, 2.9ms and 5.9ms；Then, will based on 4 speakers
Sound transmission to the time listening to place needs at user place determines speaker A, speaker B, raises
The time difference listening to place of sound transmission to user place is 3ms by sound device C and speaker D；
Finally, determine that speaker A, speaker C are relative to speaker B, speaker D according to time difference
Postpone 3ms and play sound, so that the sound that 4 speakers send is in the receipts relative to user place
Listen what place synchronously arrived at user place in the case of there is different distances to listen to place.
The most such as, 3 speakers are respectively speaker A, speaker B and speaker C, speaker
A, speaker B and speaker C are in the position on three summits of equilateral triangle, and relative to
The distance listening to place at user place is respectively 1 meter, 2 meters and 1 meter；Based on 3 speaker phases
The distance in place listened to for user place and speed 340M/s that sound is propagated in atmosphere, really
Determine speaker A, speaker B and speaker C to be needed in the place of listening to of sound transmission to user place
The time wanted is respectively 2.9ms, 5.9ms and 2.9ms；Then, based on 3 speakers, sound is passed
The time listening to place needs casting to user place determines that speaker A, speaker C are relative to raising one's voice
The time difference listening to place of sound transmission to user place is 3ms by device B；Finally, according to time
Between difference determine speaker A, speaker C relative to speaker B postpone 3ms play sound, with
Make sound that 3 speakers send relative to user place listen to place exist different away from
Synchronously arrive at user place in the case of from listens to place.
First control module 350 adjusts each speaker 310 by controlling the first adjusting module 340
Sound so that the synchronous sound that each speaker 310 sends reaches to listen to place, and listening to
There is at place position identical volume.
Specifically, the first control module 350 based on for each speaker 310 volume and/
Or broadcast time-delay generates and plays control signal, the first control module 350 is by controlling the first adjusting module
340 control to adjust the synchronous sound that each speaker 310 sends reaches to listen to place, and is listening to
There is at place position identical volume.
It should be noted that when speaker 310 sends sound, there is the more sound that affects and play effect
The factor of fruit, the sound transmission caused except the difference according to sound transmission distance is to listening at place
Produced non-outside stereo sound effect fruit, encounter barrier due to sound and return the echo caused also
The effect that meeting interference sound is play.When above-mentioned interference is more than the interference threshold preset, user can be given
Audio experience degree brings bigger negative effect, owing to echo is disturbed, and the sound that speaker 310 sends
Sonic propagation there is deformation when listening to place to user place, the sound that user hears can lose former
Some tone colors.Therefore, provide below a kind of technical scheme and encounter barrier and return and made weakening sound
The interference of the echo become, thus improve the whole structure that sound is play, improve user experience.
It should be noted that a kind of common echo interference is caused by pectination effect.Speaker
310 sound sent, are arrived by two kinds of approach and listen to place, and one is that user is arrived in straightline propagation,
Referred to as direct sound wave, another kind is to carry out one through the surface of the barriers such as wall, ceiling, floor
Secondary or repeatedly reflection arrives listens to place, referred to as echo.Due to the path length of echo process, than
Direct sound wave arrives and listens to evening place time, therefore produces time difference in communication process, and time difference is mapped to
Sound wave can produce corresponding phase contrast.Listening on ground according to the interference theory of ripple, echo and direct sound wave
Interference effect is produced, so that the frequency response curve of sound wave produces pectination effect at Dian.
Pectination effect can make frequency response serious deterioration, it is thus regarded that echo is harmful.Pectination effect
Envelope mainly due to the different sound of the frequency acoustic of different wave or phase place occurs that superposition is imitated
The sound waveform containing labyrinth that should be formed afterwards.
Alternatively, audio playing device also includes that frequency acquisition module, degree of disturbance determine module and the 3rd
Adjusting module: frequency acquisition module obtains the frequency playing sound of multiple speakers 310；Degree of disturbance
Determine module according to frequency and multiple speaker 310 relative to barrier and the position letter of listening to place
Breath, determines echo degree of disturbance corresponding with each speaker 310；When echo degree of disturbance is more than presetting
Interference threshold time, the 3rd adjusting module arranges parameter to the broadcasting of each speaker 310 to be carried out accordingly
Adjustment.
Preferably, the 3rd adjusting module is used for foundation frequency and multiple speaker 310 relative to barrier
And listen to the positional information in place, determine between each speaker 310 relative to broadcast time-delay.
Specifically, first, frequency acquisition module, according to the sound currently sent, obtains speaker 310
Send the frequency of sound；Then, degree of disturbance determines that module is according to frequency and frequency and the relation of wavelength
Function determines that speaker 310 sends the wavelength of sound；Subsequently, according to speaker 310 relative to obstacle
Thing and listen to the positional information in place, calculates each speaker 310 respectively and sends sound from speaker
310 are propagated directly to listen to place and each speaker 310 sends sound and propagates to barrier from audible device
Hinder thing, then be back to listen to the distance in place by barrier；Then, wavelength basis and above-mentioned calculate
To distance determine that the sound wave that each speaker 310 sends sound is directly propagated from audible device respectively
To listening to place and each speaker 310 sends sound and propagates to barrier from audible device, then by hindering
Thing is hindered to be back to listen to the phase contrast that position produces；Subsequently, relatively above-mentioned phase contrast, determines and each
The corresponding echo degree of disturbance of speaker 310；Finally, when echo degree of disturbance is more than the interference threshold preset
Time, the 3rd adjusts mould is adjusted correspondingly the broadcast time-delay of each speaker 310.
Preferably, multiple speakers 310 are specially four, and respectively in the front of user, rear,
Left and right are arranged.
It should be noted that in order to obtain more preferable Consumer's Experience, speaker 310 can be set to
Four, and it is placed in the front of user, rear, left and right respectively.
Alternatively, audio playing device also includes the second adjusting module and the second control module: second adjusts
Mould preparation block adjusts the position of speaker；Second control module adjusts raise by controlling the second adjusting module
The position of sound device.
It should be noted that control not only by first in the scheme that the embodiment of the present invention provides
Module 350 arranges state modulator the first adjusting module 340 based on broadcasting and adjusts each speaker 310
Sound so that the synchronous sound that each speaker 310 sends reaches to listen to place, and listening to
There is at place position identical volume, and the second adjustment mould can be controlled by the second control module
Block adjusts the position of speaker 310 so that the position uppick of each speaker 310 is above-mentioned equally
Sound result of broadcast.Specifically, if speaker 310 is provided with the track that may be used for sliding,
Second control module can arrange state modulator the second adjusting module based on broadcasting and adjust each and raise one's voice
The position of device 310 so that each speaker 310 is at the sound relative to the position uppick listening to place
Sound reaches equilibrium, thus ensures that speaker 310 reaches good sound result of broadcast.
Alternatively, speaker 310 is adjusted when the second control module by controlling the second adjusting module
Behind position, the first control module readjusts each speaker 310 by controlling the first adjusting module
Sound, so that the synchronous sound that each speaker 310 sends reaches to listen to place, and is listening on ground
Point position has identical volume.
It should be noted that the scheme that the embodiment of the present invention provides can also be by combining the second control mould
Block controls the second adjusting module and controls to the position and the first control module 350 adjusting speaker 310
One adjusting module 340 readjusts the mode of the sound of each speaker 310 so that each speaker
310 synchronous sounds sent reach to listen to place, and have identical volume at place position listening to.
Alternatively, audio playing device also includes: listen to when primary importance determines that module 320 detects
When the position in place changes, the first control module 350 controls the first adjusting module 340 and again adjusts
The sound of each speaker 310 whole, so that the synchronous sound that each speaker 310 sends reaches to receive
Listen place, and listening to, there is at place position identical volume.
It should be noted that primary importance determines that module 320 and the second position determine that module 330 is permissible
Raise one's voice with multiple in the place of listening to refreshing user place, location with predetermined frequency by range sensor
The distance of the relative position of device 310, when detecting that this distance changes, the first control module 350
Control the first adjusting module 340 and readjust the sound of each speaker 310, so that each is raised one's voice
The synchronous sound that device 310 sends reaches to listen to place, and has identical sound at place position listening to
Amount.
Alternatively, audio playing device also includes: listen to when primary importance determines that module 320 detects
When the position in place changes, the first control module 350 controls the first adjusting module 340 and adjusts
The sound of each speaker 310, the second control module controls the second adjusting module to adjust speaker
The position of 310 so that the sound field centered by listening to position is kept in balance in same radius.
It should be noted that when primary importance determines that module 320 and the second position determine that module 330 is led to
That crosses that range sensor detects multiple user place listens to place and multiple speaker 310 phase para-positions
When the distance put changes, it is first determined the geometric center position of multiple users, the position of multiple users
Putting when with this center for the center of circle, just fall the position in the round edge of same Radius, therefore,
Geometric center positions based on multiple users, the first control module 350 controls the first adjusting module 340
Adjust the sound of each speaker 310, and the second control module controls the second adjusting module and adjusts
The position of speaker 310, so that the sound field centered by listening to position is protected in same radius
Hold equilibrium.
Technical scheme solves different from the relative distance listening between place multiple raise
The sound that sound device sends arrives and listens to the problem that sound produced by place there are differences.Raise according to multiple
Sound device is relative to listening to the positional information in place, and arranges rule based on parameter and determine each speaker
Broadcasting parameter is set, and multiple speaker theoretical based on sound transmission is relative to the position listening to place
Confidence breath determine sound transmission to listening to the size of difference that place produces, further according to determining the difference obtained
Different size adjusts the broadcasting of each speaker and arranges parameter；Finally, parameter is set based on broadcasting,
Control each speaker and carry out sound broadcasting so that the sound that speaker sends is same with same sound size
Step propagates to listen to place, weakens the multiple speakers produced due to the not equal factor of propagation distance and sends out
The situation that the sound that goes out is different, listens to the user at place experience preferably around three-dimensional so that being in
Sound effective value, is greatly improved user experience.
Those skilled in the art of the present technique are appreciated that the present invention includes relating to perform institute in the application
State the one or more equipment in operation.These equipment can be required purpose and specialized designs and
Manufacture, or the known device in general purpose computer can also be included.These equipment have and are stored in it
Interior computer program, these computer programs optionally activate or reconstruct.Such computer journey
Sequence can be stored in equipment (such as, computer) computer-readable recording medium or be stored in and be suitable to storage electricity
Sub-instructions is also coupled to any kind of medium of bus respectively, and described computer-readable medium includes
But be not limited to any kind of dish (including floppy disk, hard disk, CD, CD-ROM and magneto-optic disk),
ROM (Read-Only Memory, read only memory), RAM (Random Access Memory,
Memorizer immediately), (Erasable Programmable Read-Only Memory, can for EPROM
Erasable programmable read only memory), EEPROM (Electrically Erasable Programmable
Read-Only Memory, EEPROM), flash memory, magnetic card or light
Card.It is, computer-readable recording medium includes being deposited with the form that can read by equipment (such as, computer)
Storage or any medium of transmission information.
Those skilled in the art of the present technique are appreciated that and can realize these knots with computer program instructions
Each frame in composition and/or block diagram and/or flow graph and these structure charts and/or block diagram and/or flow graph
In the combination of frame.Those skilled in the art of the present technique are appreciated that and can be referred to by these computer programs
Order is supplied to the processor of general purpose computer, special purpose computer or other programmable data processing methods and comes
Realize, thus perform the present invention by the processor of computer or other programmable data processing methods
The scheme specified in disclosed structure chart and/or block diagram and/or the frame of flow graph or multiple frame.
Those skilled in the art of the present technique are appreciated that various operations, the side discussed in the present invention
Step in method, flow process, measure, scheme can be replaced, changed, combined or deleted.Further
Ground, have the present invention had discussed various operations, method, other steps in flow process, arrange
Execute, scheme can also be replaced, changed, reset, decomposed, combined or deleted.Further, existing
Have in technology have with the step in the various operations disclosed in the present invention, method, flow process, measure,
Scheme can also be replaced, changed, reset, decomposed, combined or deleted.
The above is only the some embodiments of the present invention, it is noted that for the art
For those of ordinary skill, under the premise without departing from the principles of the invention, it is also possible to make some improvement
And retouching, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. a sound playing method, it is characterised in that including:
Determine the positional information listening to place；
Determine that multiple speaker is respectively relative to listen to the positional information in place；
According to each speaker relative to listening to the positional information in place, and rule is set based on parameter comes
Determine that the broadcasting of each speaker arranges parameter；
Set the parameters to adjust the sound of each speaker based on described broadcasting, so that each speaker
The synchronous sound sent listens to place described in reaching, and described listen to have at place position identical
Volume.
Method the most according to claim 1, it is characterised in that described method also includes:
Adjust the position of each speaker.
Method the most according to claim 2, it is characterised in that described method also includes:
When behind the position adjusting speaker, readjust the sound of each speaker, so that each is raised
The synchronous sound that sound device sends listens to place described in reaching, and has phase at place position described listening to
Same volume.
The most according to the method in claim 2 or 3, it is characterised in that described method also includes:
When detecting that the position listening to place changes, readjust the sound of each speaker,
So that the synchronous sound that each speaker sends reach described in listen to place, and listen to place described
Position has identical volume.
Method the most according to claim 2, it is characterised in that described method also includes:
When the position listening to place changes, adjust the sound of each speaker and the position of speaker
Put so that the sound field centered by listening to position is kept in balance in same radius.
Method the most according to claim 1, it is characterised in that described in listen to place and refer to list
The position of one user or the center of multiple user.
Method the most according to claim 1, it is characterised in that described broadcasting arranges parameter bag
Include volume and/or broadcast time-delay.
Method the most according to claim 7, it is characterised in that described parameter arranges rule use
In arrange between each speaker relative to volume and/or relative broadcast time-delay.
Method the most according to claim 8, it is characterised in that relative according to each speaker
In listening to the positional information in place, and rule is set based on parameter determines giving great volume of each speaker
Little, including:
According to each speaker described relative to listening to the positional information in place, determine each speaker
The sound sent is in the described volume difference listened at place；
The volume of each speaker is determined, to guarantee multiple raising one's voice according to described volume difference
The sound that device sends has identical volume described listening at place.
10. an audio playing device, it is characterised in that including:
Multiple speakers；
Primary importance determines module, for determining the positional information listening to place；
The second position determines module, for determining each speaker relative to the position letter listening to place
Breath；
First adjusting module, for believing relative to the position listening to place according to each speaker described
Breath, and rule is set based on parameter determines that the broadcasting of each speaker arranges parameter；
First control module, for adjusting the sound of each speaker by controlling the first adjusting module
Sound so that the synchronous sound that each speaker sends reach described in listen to place, and listen to described
There is at place position identical volume.
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