CN104869523B - Virtual multiple sound channel plays method, terminal and the system of audio file - Google Patents
Virtual multiple sound channel plays method, terminal and the system of audio file Download PDFInfo
- Publication number
- CN104869523B CN104869523B CN201410067398.0A CN201410067398A CN104869523B CN 104869523 B CN104869523 B CN 104869523B CN 201410067398 A CN201410067398 A CN 201410067398A CN 104869523 B CN104869523 B CN 104869523B
- Authority
- CN
- China
- Prior art keywords
- terminal
- mrow
- msub
- plays
- sound channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Stereophonic System (AREA)
Abstract
Method, terminal and system that a kind of virtual multiple sound channel plays audio file are provided, wherein, method includes：Terminal A obtains the location map and user's listened position of each terminal in set of terminal；Using location map and user's listened position, terminal A calculates the audio signal parameters of each terminal when virtual multiple sound channel plays；Each terminal in terminal A instruction terminal groups plays the audio file according to respective audio signal parameters.In embodiment provided by the invention, utilize location map and user's listened position, terminal A calculates the audio signal parameters of each terminal when virtual multiple sound channel plays, each terminal in set of terminal plays audio file according to respective audio signal parameters, so as to realize according to the location map of each terminal in set of terminal and user's listened position adjustment audio signal parameters, obtain the effect that virtual multiple sound channel plays audio file, the telepresenc that user listens to audio file is improved, while also avoids the multichannel of purchasing expensive from playing audio amplifier.
Description
Technical field
The present invention relates to the technical field of terminal installation, more particularly, to virtual multiple sound channel play audio file method,
Terminal and system.
Background technology
User can have user when playing the audio amplifier broadcasting audio file such as symphony or film using multichannel audio
Impression on the spot in person, the experience of user is substantially increased, multichannel audio, which plays audio amplifier, can play 5.1 channel audio files
Or stereo sound frequency file etc..But because multichannel audio plays the expensive of audio amplifier, and for putting position requirement very
Height, and the domestic environment of general user is unsatisfactory for the disposing way of such high request, so many users finally abandon
Multichannel audio plays audio amplifier.
In the prior art, including in the terminal such as mobile phone, tablet personal computer, PC loudspeaker is equipped with, some terminals
In even configure multiple loudspeakers, but due to the small volume of terminal, the distance between multiple loudspeakers in terminal compare
Closely, so, it can not realize that multichannel audio plays the effect of audio amplifier.Accordingly it is desirable to played simultaneously using multiple mobile phones
Music file, virtually to obtain the effect that multichannel plays audio, however, in the prior art, because mobile phone can only use in advance
The audio signal parameters set play audio file, can not listen to position according to the quantity of mobile phone, distributing position and user
Situations such as putting adjusts the audio signal parameters of terminal, reduces the telepresenc of user.
The content of the invention
The present invention provides a kind of method that virtual multiple sound channel plays audio file, for solving in the prior art, using
During multiple terminal plays audio files, it is impossible to according to distributing position figure of terminal etc. and user's listened position come adjust automatically each end
The problem of holding the audio signal parameters played.
To solve above mentioned problem of the prior art, the invention provides the side that a kind of virtual multiple sound channel plays audio file
Method, wherein, realize that virtual multiple sound channel plays audio file using each terminal in set of terminal, the set of terminal includes K
Terminal, K >=2, terminal A are any one terminal in the set of terminal, and methods described specifically includes：
The terminal A obtains the location map and user's listened position of each terminal in the set of terminal；
Using the location map and user's listened position, the terminal A calculates described each when virtual multiple sound channel plays
The audio signal parameters of individual terminal；
The terminal A indicates that each terminal in the set of terminal plays the audio according to respective audio signal parameters
File, to obtain the effect of virtual multiple sound channel broadcasting.
The present invention also provides the terminal that a kind of virtual multiple sound channel plays audio file, wherein, including：
Receiving module, for obtaining the location map of each terminal and user's listened position in set of terminal；
Computing module, for utilizing the location map and user's listened position, calculate virtual multiple sound channel and play when institute
State the audio signal parameters of each terminal；
Indicating module, for indicating each terminal in the set of terminal according to playing respective audio signal parameters
Audio file, to obtain the effect of virtual multiple sound channel broadcasting.
Present invention also offers the system that a kind of virtual multiple sound channel plays audio file, wherein, including it is above-mentioned any one
Kind virtual multiple sound channel plays the terminal of audio file.
The beneficial effect of embodiment provided by the invention includes：
In embodiment provided by the invention, the terminal A of the control terminal in set of terminal obtains each terminal in set of terminal
Location map and user's listened position, using location map and user's listened position, terminal A calculates virtual multiple sound channel
The audio signal parameters of each terminal during broadcasting, each terminal in set of terminal play audio according to respective audio signal parameters
File, so as to realize according to the location map of each terminal in set of terminal and user's listened position adjustment audio signal parameters,
The effect that virtual multiple sound channel plays audio file is obtained, improves the telepresenc that user listens to audio file, while also avoid purchasing
The multichannel for putting costliness plays audio amplifier.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the flow chart for the method first embodiment that virtual multiple sound channel of the present invention plays audio file；
Fig. 2 is the flow chart for the method second embodiment that virtual multiple sound channel of the present invention plays audio file；Fig. 3 is this implementation
In example in set of terminal each terminal location map；
Fig. 4 is set of terminal and the mapping relations figure of 5.1 track loudspeaker boxes in the present embodiment；
Fig. 5 is the processing procedure schematic diagram of ears acoustic audio signal in the present embodiment；
Fig. 6 is the UI structural representations as control terminal in the present embodiment；
Fig. 7 is the UI structural representations as control terminal in the present embodiment；
Fig. 8 is the structural representation for the terminal first embodiment that virtual multiple sound channel of the present invention plays audio file；
Fig. 9 is the structural representation for the terminal second embodiment that virtual multiple sound channel of the present invention plays audio file.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative " one " used herein, " one
It is individual ", " described " and "the" may also comprise plural form.It is to be further understood that what is used in the specification of the present invention arranges
Diction " comprising " refer to the feature, integer, step, operation, element and/or component be present, but it is not excluded that in the presence of or addition
One or more other features, integer, step, operation, element, component and/or their groups.It should be understood that when we claim member
Part is " connected " or during " coupled " to another element, and it can be directly connected or coupled to other elements, or there may also be
Intermediary element.In addition, " connection " used herein or " coupling " can include wireless connection or wireless coupling.It is used herein to arrange
Taking leave "and/or" includes whole or any cell and all combinations of one or more associated list items.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein（Including technology art
Language and scientific terminology）, there is the general understanding identical meaning with the those of ordinary skill in art of the present invention.Should also
Understand, those terms defined in such as general dictionary, it should be understood that have with the context of prior art
The consistent meaning of meaning, and unless by specific definitions as here, idealization or the implication of overly formal otherwise will not be used
To explain.
Those skilled in the art of the present technique are appreciated that " terminal " used herein above, " terminal device " both include wireless communication
The equipment of number receiver, it only possesses the equipment of the wireless signal receiver of non-emissive ability, includes receiving again and transmitting hardware
Equipment, its have on bidirectional communication link, can carry out two-way communication reception and launch hardware equipment.This equipment
It can include：Honeycomb or other communication equipments, it has single line display or multi-line display or shown without multi-line
The honeycomb of device or other communication equipments；PCS（Personal Communications Service, PCS Personal Communications System）, it can
With combine voice, data processing, fax and/or its communication ability；PDA（Personal Digital Assistant, it is personal
Digital assistants）, it can include radio frequency receiver, pager, the Internet/intranet access, web browser, notepad, day
Go through and/or GPS（Global Positioning System, global positioning system）Receiver；Conventional laptop and/or palm
Type computer or other equipment, its have and/or the conventional laptop including radio frequency receiver and/or palmtop computer or its
His equipment." terminal " used herein above, " terminal device " can be portable, can transport, installed in the vehicles（Aviation,
Sea-freight and/or land）In, or be suitable for and/or be configured in local runtime, and/or with distribution form, operate in the earth
And/or any other position operation in space." terminal " used herein above, " terminal device " can also be communication terminal, on
Network termination, music/video playback terminal, such as can be PDA, MID（Mobile Internet Device, mobile Internet
Equipment）And/or there is the equipment such as mobile phone or intelligent television, the set top box of music/video playing function.
Fig. 1 is a kind of flow chart of embodiment of method that virtual multiple sound channel of the present invention plays audio file.As shown in figure 1,
The flow that the present embodiment virtual multiple sound channel plays the method for audio file specifically comprises the following steps：
Step 101, terminal A obtain the location map and user's listened position of each terminal in set of terminal.
In the present embodiment, terminal A and terminal B is comprised at least in set of terminal, wherein, using terminal A as control terminal, use
Family can be by controlling other-end of the terminal into set of terminal to send control instruction, including the instruction such as plays, stops playing, with
And each terminal in command terminal group sends ultrasound, each terminal is according to the position between ultrasonic computing terminal.For example, terminal
A command terminals B sends ultrasound, after terminal B sends ultrasound, is sent into the terminal A as control terminal the time for sending ultrasound,
Terminal A according to terminal B send ultrasound time and terminal A receive ultrasound time, calculate between terminal B and terminal A away from
From so as to obtain the location map of each terminal in set of terminal.
In actual applications, user can input user's listened position by terminal A UI interfaces, or, pass through terminal
User's head picture is shot to determine user's listened position.Terminal A obtain set of terminal in each terminal location map and
After user's listened position, into step 102.
Step 102, terminal A utilize location map and user's listened position, calculate when virtual multiple sound channel plays each end
The audio signal parameters at end.
In this step, terminal A calculates end according to virtual multiple sound channel broadcast mode using corresponding sound channel mapping algorithm
The filter function of each terminal in the group of end, in the present embodiment, virtual multiple sound channel broadcast mode can include 5.1 sound channel broadcasting sides
Formula, played in stereo mode etc..The audio signal parameters of other-end are sent to corresponding terminal by terminal A again, subsequently into
Step 103.
Each terminal in step 103, terminal A instruction terminal groups plays audio text according to respective audio signal parameters
Part.
By step 103, to obtain the effect that virtual multiple sound channel plays audio file.
After each terminal in set of terminal is according to the audio signal parameters received, each terminal synchronous averaging and basis
Respective audio signal parameters play audio file, so as to obtain the effect that virtual multiple sound channel plays audio file, improve
User listens to the telepresenc of audio file.
In the present embodiment, the terminal A as control terminal in set of terminal obtains the position of each terminal in set of terminal
Distribution map and user's listened position, using location map and user's listened position, when terminal A calculates virtual multiple sound channel broadcasting
The audio signal parameters of each terminal, each terminal in set of terminal play audio file according to respective audio signal parameters,
So as to realize according to the location map of each terminal in set of terminal and user's listened position adjustment audio signal parameters, obtain empty
Intend the effect that multichannel plays audio file, improve user and listen to the telepresenc of audio file, while also avoid purchasing expensive
Multichannel play audio amplifier.
Fig. 2 is the flow chart for the method another kind embodiment that virtual multiple sound channel of the present invention plays audio file, and Fig. 3 is this reality
The location map of each terminal in set of terminal in example is applied, Fig. 4 is that set of terminal and the mapping of 5.1 track loudspeaker boxes are closed in the present embodiment
System's figure, Fig. 5 are the processing procedure schematic diagram of ears acoustic audio signal in the present embodiment, and Fig. 6 is as control in the present embodiment
The UI structural representations of terminal, Fig. 7 are the UI structural representations as control terminal in the present embodiment.As shown in Fig. 2 this implementation
The flow for the method that example virtual multiple sound channel plays audio file specifically comprises the following steps：
Each terminal estimated noise energy in step 201, control terminal instruction terminal group.
In this step, technical scheme is introduced so that set of terminal includes terminal A, terminal B and terminal C as an example, wherein, terminal
Each terminal in group is connected by WIFI, near-field communication NFC and/or Bluetooth information.Terminal A is control terminal, and terminal A is to end
End B and terminal C sends the instruction of noise energy estimation, meanwhile, terminal A can also carry out the operation of noise energy estimation.For example,
In practical application, a length of 100ms energy budget when each terminal in set of terminal can be carried out to 19.5kHz noise will
The signal that terminal receives obtains filtered data y (n), noise by the bandpass filter f (m) that frequency is 19-20kHz
The formula of energy budget such as formula（1）It is shown：
Wherein, ENFor noise energy, E0(n) noise signal for n-th after filtering.
Step 202, control terminal obtain the distance between the received signal to noise ratio of each terminal and each terminal in set of terminal.
In this step, control each terminal in terminal instruction terminal group to send ultrasonic wave successively, each terminal according to
The ultrasonic wave that receives and in step 201 estimated obtained noise energy, are calculated respective received signal to noise ratio, count
Calculate the formula such as formula of signal to noise ratio（2）It is shown：
Wherein, P is received signal to noise ratio, ENFor noise energy, y (n) is n-th after filtering of ultrasonic signal, FsFor sampling
Rate, G are the sampling time.
For example, setting current time sends the terminal of ultrasound as B, terminal B is while transmitting is ultrasonic, using WIFI channels,
Will transmitting ultrasonic wave at the beginning of between T1 be sent to control terminal.When terminal B launches ultrasonic wave, other-end is all in detection
State, after ultrasound is detected, by respective reception time T2, with received signal to noise ratio P by WIFI channels, it is sent to control eventually
End.By taking terminal C as an example, the method for ultrasound detection is as follows：
By terminal C reception signal x (n) by the bandpass filter f (m) that band connection frequency is 19-20kHz, filtered
Data y (n) afterwards, using edge detection algorithm, the original position of ultrasonic signal is detected, so as to obtain receiving time T2.
In actual applications, 100ms, F can be set as using time GsSample rate can be set as 44.1KHz.
After each terminal in set of terminal calculates respective received signal to noise ratio, the terminal A as control terminal will be obtained
Take the received signal to noise ratio of each terminal in set of terminal, for example, by communication receive the received signal to noise ratio of other-end with
And directly obtain the received signal to noise ratio of itself.
In this step, each terminal in terminal A command terminals group sends ultrasonic signal successively, for example, when terminal B is sent out
While going out ultrasonic signal, the time T1 for launching ultrasonic signal is sent to the terminal A as control terminal by the use of WIFI channels.
When terminal B launches ultrasonic signal, the other-end in set of terminal is all in detection state, when other-end detects ultrasonic letter
After number, by the time T2 and received signal to noise ratio P that are respectively received ultrasonic signal by WIFI channels, it is sent to as control terminal
Terminal A.In actual applications, surpass if the terminal A as control terminal does not receive some mobile phone in preset time and sent
The time T1 of acoustical signal, then for terminal A by terminal exclusion outside set of terminal, preset time can be set as 100ms.This implementation
In example, ultrasonic signal that terminal B is sent will be received by terminal A and terminal C, and terminal B will send the time T1 hairs of ultrasonic signal
The terminal A as control terminal is sent to, terminal A records receive the time T2 of the ultrasonic signal of terminal B transmissions, then according to end
The time T1 and terminal A that end B sends ultrasonic signal receive the time T2 of ultrasonic signal, calculate between terminal B and terminal A
Distance LBA, calculate distance LBAFormula such as formula（3）It is shown：
LBA=（T2-T1）×v （3）
Wherein, v be ultrasound the velocity of sound, v=340m/s.
Equally, terminal A sends ultrasonic signal, will be received by terminal B and terminal C, and terminal A records send ultrasonic signal
The time T2 for receiving ultrasonic signal is sent to the terminal A as control terminal by time T1, terminal B, and terminal A is sent out according to terminal A
The time T1 and terminal B for going out ultrasonic signal receive the time T2 of ultrasonic signal, calculate the distance between terminal B and terminal A
LAB, calculation formula such as formula（3）, now terminal A received signal to noise ratio is PAB；, will be by end if terminal B sends ultrasonic signal
End A and terminal C is received, and the time T1 for sending ultrasonic signal is sent to the terminal A as control terminal, terminal A notes by terminal B
Record receives the time T2 of ultrasonic signal, and the time T1 and terminal A that terminal A sends ultrasonic signal according to terminal B receive ultrasonic letter
Number time T2, calculate the distance between terminal B and terminal A LBA, now terminal B received signal to noise ratio is PBA.Due to reality
The difference of environment, LABWith LBAIt is usually unequal, the size of terminal A comparison terminals A and terminal B received signal to noise ratio, it will connect
The big terminal of receipts signal to noise ratio sends the distance that ultrasonic signal is calculated and is defined as the distance between terminal A and terminal B；For example,
If terminal A received signal to noise ratio is big, the distance L that is calculated when sending ultrasonic signal with terminal AABAs terminal A and end
The distance between B is held, if terminal B received signal to noise ratio is big, the distance L that is calculated when sending ultrasonic signal with terminal BBA
As the distance between terminal B and terminal A.After each terminal in set of terminal launches ultrasonic signal successively, it can obtain respectively
The distance between the terminal A and terminal C that are calculated when sending ultrasonic signal to terminal A LAC, terminal C counted when sending ultrasonic signal
The distance between obtained terminal C and terminal A LCA, terminal B send the terminal B being calculated during ultrasonic signal and terminal C it
Between distance LBC, terminal C send the distance between the terminal B being calculated during ultrasonic signal and terminal C LCB。
A terminal in set of terminal all carries out sending hair ultrasonic signal, other-end will receive the terminal send it is super
Acoustical signal, then according to sending the time of ultrasonic signal and other-end receives time of the ultrasonic signal and calculates the terminal
The distance between other-end, the distance being calculated then is aggregated into control terminal.
After controlling the distance between each terminal of terminal acquisition set of terminal, into step 203.
Step 203, control terminal obtain each terminal location distribution map and user's listened position in set of terminal.
In this step, as shown in figure 3, the L being calculated in step 202 according to terminal AAB、LBA、LAC、LCA、LBCWith
LCB, the location map of each terminal in set of terminal is obtained, user can input user by terminal A UI interfaces and listen to position
Put.In actual applications, if set of terminal includes the terminal of more than four, each terminal in set of terminal can be split
Divide set of terminal including three terminals into multiple, calculating each divides the distance between each terminal in set of terminal, according to each point
The distance between each terminal is assured that a triangle in set of terminal, then divides the three of set of terminal composition using each
It is angular, the location map for all terminals being spliced into set of terminal.Terminal A obtains each terminal location distribution map in set of terminal
After user's listened position, each terminal location distribution map and user's listened position its in set of terminal can be sent to by
His terminal, so that each terminal display location distribution map and user's listened position in set of terminal.
Step 204, using location map and user's listened position, terminal A calculates when virtual multiple sound channel plays each end
The audio signal parameters at end.
In the present embodiment, technical scheme is introduced by taking 5.1 track loudspeaker boxes as an example, as shown in figure 4,5.1 track loudspeaker boxes include 5
Individual audio amplifier and a subwoofer, subwoofer can be put at an arbitrary position, wherein, 5 audio amplifiers are respectively left voice box x1, middle audio amplifier
X2, right voice box x3, rear left voice box x4 and rear right voice box x5.Wherein, voice signal x1 (t) reaches the channel of left ear from left voice box x1
Transmission function is h11, voice signal x1 (t) from the left voice box x1 channel transfer functions for reaching auris dextra be h12, terminal A sound
Signal xA (t) is hA1 from the terminal A channel transfer functions for reaching left ear, and terminal A voice signal xA (t) reaches the right side from terminal A
The channel transfer functions of ear are hA2, can define the channel that other 5.1 track loudspeaker boxes arrive left ear and auris dextra respectively in the same fashion
Transmission function, and define terminal B and terminal C voice signal and arrive the channel transfer functions of left ear and auris dextra respectively.
In the present embodiment, the channel transfer functions of each 5.1 track loudspeaker box relative position between left ear, auris dextra respectively
It is known to put, in actual applications, by test measure in advance under various relative positions each 5.1 track loudspeaker box respectively with
Channel transfer functions between left ear, auris dextra.Moreover, we have obtained the position distribution of each terminal in set of terminal in advance
Figure, the relative position in set of terminal between each terminal and the left and right ear of user can be obtained according to user's listened position,
So, it is believed that channel transfer functions of each terminal respectively between left ear, auris dextra are also known in set of terminal.In reality
In the application of border, the audio signals of 5.1 track loudspeaker boxes that the left and right ear of user is heard is respectively y1 and y2, wherein, y1 and y2
Calculation formula respectively such as formula（4）And formula（5）It is shown：
Wherein, m is respectively the numbering of 5.1 track loudspeaker boxes, hm1The signal of respectively 5.1 track loudspeaker boxes and left ear transmits letter
Number, hm2The respectively signal transfer function of 5.1 track loudspeaker boxes and auris dextra.
In the present embodiment, the terminal A calculates the audio signal parameters of each terminal when virtual multiple sound channel plays
Formula it is as follows：
xk=s1*g1k+s2*g2k
Wherein, k identifies each terminal number in set of terminal respectively, and 1,2 identify human ear numbering respectively, and s1, s2 are respectively
The ears acoustic audio signal that the left and right ear of setting is heard, g1k、g2kTerminal k filter function, x are identified respectivelykMark respectively
Know the voice data that terminal k is played.In the present embodiment, set of terminal includes terminal A, terminal B and terminal C.Set s1 and s2 as
Ears acoustic audio signal, the processing procedure of ears acoustic audio signal is as shown in figure 5, wherein, terminal A, terminal B and terminal C
The audio signal sent is xA,xB,xC, xA,xB,xCCalculation formula such as formula（6）、（7）With（8）It is shown：
xA=s1*g1A+s2*g2A（6）
xB=s1*g1B+s2*g2B（7）
xC=s1*g1C+s2*g2C（8）
Wherein, audio signal parameters g1A,g2AFilter function for terminal A to ears acoustic audio signal s1 and s2, audio
Signal parameter g1B,g2BFilter function for terminal B to ears acoustic audio signal s1 and s2, audio signal parameters g1C,g2CFor end
Hold filter functions of the C to ears acoustic audio signal s1 and s2.
In the present embodiment, audio signal parameters g is obtained1A,g2A,g1B,g2B,g1C,g2CAfterwards, it is possible to believed according to audio
Number parameter plays audio file, to obtain the effect of virtual multiple sound channel broadcasting.
When user needs to hear that set of terminal virtual multiple sound channel plays the effect of audio file, it is necessary to meet formula：
Wherein, j identifies human ear numbering, j=1,2；A, B ... identifies the numbering of each terminal in set of terminal respectively, and s1, s2 divide
The ears acoustic audio signal that the left and right ear that Wei do not set is heard, g1k、g2kTerminal k filter function, K tables are identified respectively
Show the terminal number in set of terminal.
In the present embodiment, in the set of terminal that the left and right ear of user is heard the audio signal of each terminal be respectively y1 and
Y2, its calculation formula are respectively formula（9）With（10）, formula（9）With（10）It is as follows：
y1=xA*hA1+xB*hB1+xC*hC1（9）
y2=xA*hA2+xB*hB2+xC*hC2（10）
Wherein, xA,xB,xCThe audio signal that respectively terminal A, terminal B and terminal C are sent, hA1,hB1,hC1It is respectively whole
Hold the channel transfer functions between A, terminal B and terminal C and left ear, hA2,hB2,hC2Respectively terminal A, terminal B and terminal C with
Channel transfer functions between auris dextra.
By formula（6）、（7）With（8）In xA,xBAnd xCFormula is substituted into respectively（9）With（10）, can obtain formula（11）, it is public
Formula（11）It is as follows：
Wherein, j=1,2, for identifying left and right ear, y1 and y2 identify the audio signal that left and right ear is heard respectively.
, can be by formula for convenience of calculating process（11）The form of matrix multiple is transformed into, obtains formula（12）, formula
（12）It is as follows：
Wherein,（.）TRepresenting matrix transposition, filter function matrix is set as G, then filter function matrix G such as formula（13）Institute
Show：
Wherein, gikThe filter function for the wave filter that exponent number is Lg is identified, filter function matrix G dimension is（M.Lg）* 2, M
For the exponent number of wave filter.
Wherein, gik=[gik,0gik,1gik,2....gik,Lg-1]T, i=1, the numbering that 2, k is each terminal in set of terminal, this
In embodiment, the terminal number in set of terminal is respectively A, B and C,
If channel impulse response matrix is H, then channel impulse response matrix H such as formula（14）It is shown：
Wherein, the dimension of channel impulse response matrix H is 2L*（M·Lg）.In the present embodiment, filter order M=3, L=
Lg+Lh+ 1, LhFor wave filter hmjLength, wherein, formula（14）In hkjSuch as formula（15）It is shown：
Wherein, k is the numbering of each terminal in set of terminal, and j is the numbering of left and right ear.
In the present embodiment, according to formula（14）, H（k=A,B,C j=1,2）It is the Silvester matrix that dimension is L*Lg,
HkjSuch as formula（16）It is shown：
Formula（11）In siSuch as formula（17）It is shown：
si=[si(k)si(k-1)si(k-2)...si(k-L+1)]T（17）
In the present embodiment, the audio signal that user's uppick set of terminal virtual multiple sound channel plays is believed with ears acoustic audio
Number identical, i.e. s1=y1, s2=y1, according to formula（12）Understand, it is desirable to which HG meets formula
Wherein, u1 is that length is L（L=Lg+Lh+1）, k-th of element is 1, and remaining element is 0, formula（18）In 0
Represent the full 0 vector that length is L.
To formula（18）Deploy computing, it is G such as formula to obtain filter function matrix（19）It is shown,
Wherein,（·）PGroup inverse matrices are sought in expression.
In the present embodiment, after filter function matrix G is gone out, that is, the audio signal ginseng of each terminal in set of terminal is obtained
Number g1A,g2A,g1B,g2B,g1C,g2C, subsequently into step 205.
Each terminal in step 205, set of terminal plays audio file according to respective audio signal parameters, to obtain void
Intend the effect that multichannel plays audio file.
In this step, the audio signal that terminal A, terminal B and terminal C in set of terminal are calculated in step 204 is joined
Number g1A,g2A,g1B,g2B,g1C,g2C, formula is updated to respectively（6）、（7）With（8）, you can obtaining terminal A, terminal B and terminal C needs
The audio signal to be sent is xA,xBAnd xC, then terminal A, terminal B and terminal C audio file is decoded, then distinguish
Play out audio signal xA,xBAnd xC, to obtain the effect that virtual multiple sound channel plays audio file, improve user and listen to audio
The telepresenc of file.As control terminal terminal A UI interfaces as shown in fig. 6, by control terminal can select song, broadcasting,
Stop playing and exiting the operation of set of terminal etc.；As non-controlling terminal terminal B UI interfaces as shown in fig. 7, as non-
The switch for controlling the terminal B of terminal to be played out under terminal A instruction control, terminal B can also exit set of terminal；Wherein,
User can be by dragging terminal A UI interfaces in head position, it is simple to operation, conveniently to change user's listened position.
In the present embodiment, therefore, can be with because filter function matrix is that G only with channel impulse response matrix is H relevant
Channel impulse response matrix H is precalculated out, and is stored in terminal A, to reduce amount of calculation.
In actual applications, if changed during the position of each terminal in set of terminal, set of terminal periodically weighs
Multiple step 201-205, the audio signal parameters of each terminal are obtained with the change in location according to each terminal in set of terminal, when
When each terminal in set of terminal plays audio file according to respective audio signal parameters, sound is played to obtain virtual multiple sound channel
The effect of frequency file；In the present embodiment, then set of terminal periodically repeats step 201-205 time and can be set as 2s.
Distinguishingly, when only including two terminals in set of terminal, such as during including terminal A and terminal B, and user's listened position
In terminal A and terminal B centre, when being played out using two terminals of A, B, according to formula xk=s1*g1k+s2*g2k's
Description, the voice data that terminal A and B are played are
When being played using stereo speaker, the signal that left and right ear receives is
Because the number of people is in centre, due to blocking for the number of people, left ear can be approximately considered and be only hearing left device signal, auris dextra is only
Hearing has device signal, makes s1=y1,s2=y2, i.e.,
Formula (23) is substituted into formula (22), can be obtained
Because mobile phone and sound equipment putting position are the same,In substitution formula (24), it can obtain
Wherein, x1Be left voice box play data, x2The data that right voice box plays.
Now, system is to be simplified to the state of left and right acoustic channels, i.e., the voice data that now terminal A is played plays with left voice box
Data it is identical, terminal B play voice data it is identical with the data that right voice box plays.
In the above-described embodiments, the terminal A as control terminal in set of terminal obtains the position of each terminal in set of terminal
Distribution map and user's listened position are put, using location map and user's listened position, terminal A calculates virtual multiple sound channel broadcasting
When each terminal audio signal parameters, each terminal in set of terminal plays audio text according to respective audio signal parameters
Part, so as to realize according to the location map of each terminal in set of terminal and user's listened position adjustment audio signal parameters, obtain
Take virtual multiple sound channel to play the effect of audio file, improve the telepresenc that user listens to audio file, while also avoid purchasing
Expensive multichannel plays audio amplifier.
Fig. 8 is a kind of structural representation of embodiment of terminal that virtual multiple sound channel of the present invention plays audio file.Such as Fig. 8 institutes
Show, the terminal that the present embodiment virtual multiple sound channel plays audio file includes：Receiving module 801, computing module 802 and indicating module
803。
Wherein, receiving module 801 is used to obtain the location map of each terminal and user's listened position in set of terminal；Meter
Calculate module 802 to be used to utilize location map and user's listened position, calculate the audio of each terminal when virtual multiple sound channel plays
Signal parameter；Each terminal that indicating module 803 is used in instruction terminal group plays audio according to respective audio signal parameters
File.
As the embodiment of above-mentioned terminal, receiving module 801 is used for the location map for obtaining each terminal in set of terminal,
Specifically include：
Indicating module 803 is used for each terminal in instruction terminal group and carries out estimation of noise energy and transmission in supersonic frequency
Ultrasonic signal；
Receiving module 801 be used for receiving terminal group in each terminal send received signal to noise ratio and receive ultrasonic wave when
Between, determine the distance between each terminal and other-end；
Receiving module 801 is used for the position that each terminal in set of terminal is obtained according to the distance between each terminal of set of terminal
Put distribution map.
As the embodiment of above-mentioned terminal, the reception for each terminal transmission that receiving module 801 is used in receiving terminal group
Signal to noise ratio and the time for receiving ultrasonic wave, the distance between each terminal and other-end are determined, is specifically included：
Receiving module 801 is used for the received signal to noise ratio for obtaining each terminal of set of terminal, the reception noise of more each terminal
The size of ratio；
Receiving module 801 is used for the distance that the big terminal of received signal to noise ratio is sent ultrasonic signal and is calculated, as hair
Go out the distance between terminal and other-end of ultrasonic signal.
As the embodiment of above-mentioned terminal, the formula that computing module 802 is used to calculate noise energy estimation is as follows：
Wherein, ENFor noise energy, E0(n) noise signal for n-th after filtering.
As the embodiment of above-mentioned terminal, the formula that computing module 802 is used to calculate received signal to noise ratio is as follows：
Wherein, P is received signal to noise ratio, ENFor noise energy, y (n) is n-th after filtering of ultrasonic signal, FsFor sampling
Rate, G are the sampling time, G=0.1s.
As the embodiment of above-mentioned terminal, computing module 802 is used for the sound for calculating each terminal when virtual multiple sound channel plays
The formula of frequency signal parameter is as follows：
xk=s1*g1k+s2*g2k
Wherein, k identifies each terminal number in set of terminal respectively, and 1,2 identify human ear numbering respectively, and s1, s2 are respectively
The ears acoustic audio signal that the left and right ear of setting is heard, g1k、g2kTerminal k filter function, x are identified respectivelykMark respectively
Know the voice data that terminal k is played.
As the embodiment of above-mentioned terminal, computing module 802 is used for the filter function by below equation group computing terminal k
g1kAnd g2k：
yj=sj
Wherein, j identifies human ear numbering, j=1,2；The numbering of each terminal, K are represented in set of terminal in k mark set of terminal
Terminal number, the ears acoustic audio signal that the left and right ear that s1, s2 are respectively set is heard, hkjIt is terminal k to ear j's
Channel function.In the present embodiment, the location map of each terminal and user in set of terminal are obtained by receiving module and listen to position
Put, using location map and user's listened position, each terminal when virtual multiple sound channel plays is calculated by computing module
Audio signal parameters, the audio signal parameters being calculated according to computing module play audio file, so as to realize according to terminal
The location map of each terminal and user's listened position adjustment audio signal parameters, obtain virtual multiple sound channel and play audio in group
The effect of file, the telepresenc that user listens to audio file is improved, while also avoid the multichannel of purchasing expensive from playing audio amplifier.
Fig. 9 is the structural representation for the terminal another kind embodiment that virtual multiple sound channel of the present invention plays audio file.Such as Fig. 9
Shown, the terminal that the present embodiment virtual multiple sound channel plays audio file also includes：Communication module 804 and display module 805, its
In, communication module 804 is used to enter row information by any one mode such as WIFI, near-field communication NFC and bluetooth and other-end
The location map of each terminal in set of terminal and user's listened position are sent in set of terminal by connection, communication module 804
Other-end；Then, the display location distribution map of display module 805 and user's listened position.
In the present embodiment, each terminal carries out information communication by communication module in set of terminal, is shown by display module
The location map of each terminal and user's listened position, using location map and user's listened position, pass through in set of terminal
Computing module calculates the audio signal parameters of each terminal when virtual multiple sound channel plays, the sound being calculated according to computing module
Frequency signal parameter plays audio file, so as to realize according to the location map of each terminal in set of terminal and user's listened position
Audio signal parameters are adjusted, the effect that virtual multiple sound channel plays audio file is obtained, improves user and listen to facing for audio file
Field sense, while also avoid the multichannel of purchasing expensive from playing audio amplifier.
The present invention also provides the system that a kind of virtual multiple sound channel plays audio file, includes the terminal of more than two, terminal
The terminal of audio file is played for the virtual multiple sound channel shown in Fig. 8 or Fig. 9.Audio is played with virtual multiple sound channel as shown in Figure 8
Technical scheme is introduced exemplified by the terminal of file.Wherein, the terminal of virtual multiple sound channel broadcasting audio file includes：Receiving module
801st, computing module 802 and indicating module 803；Receiving module 801 obtains the location map and use of each terminal in set of terminal
Family listened position, computing module 802 utilize location map and user's listened position, calculate when virtual multiple sound channel plays each end
The audio signal parameters at end, the audio signal parameters that indicating module 803 is calculated according to computing module 802 play audio text
Part, to obtain the effect of virtual multiple sound channel broadcasting.
In the present embodiment, the location map of each terminal and user in set of terminal are obtained by acquisition module and listen to position
Put, using location map and user's listened position, each terminal when virtual multiple sound channel plays is calculated by computing module
Audio signal parameters, the audio signal parameters being calculated according to computing module play audio file, so as to realize according to terminal
The location map of each terminal and user's listened position adjustment audio signal parameters, obtain virtual multiple sound channel and play audio in group
The effect of file, the telepresenc that user listens to audio file is improved, while also avoid the multichannel of purchasing expensive from playing audio amplifier.
Those skilled in the art of the present technique are appreciated that the present invention includes being related to for performing in operation described herein
One or more equipment.These equipment can specially be designed and manufactured for required purpose, or can also be included general
Known device in computer.These equipment have the computer program being stored in it, and these computer programs are optionally
Activation or reconstruct.Such computer program can be stored in equipment（For example, computer）In computer-readable recording medium or it is stored in
E-command and it is coupled to respectively in any kind of medium of bus suitable for storage, the computer-readable medium is included but not
It is limited to any kind of disk（Including floppy disk, hard disk, CD, CD-ROM and magneto-optic disk）、ROM（Read-Only Memory, only
Read memory）、RAM（Random Access Memory, immediately memory）、EPROM（Erasable Programmable
Read-Only Memory, Erarable Programmable Read only Memory）、EEPROM（Electrically Erasable
Programmable Read-Only Memory, EEPROM）, flash memory, magnetic card or light card
Piece.It is, computer-readable recording medium is included by equipment（For example, computer）Any Jie of information is stored or transmitted in the form of it can read
Matter.
Those skilled in the art of the present technique be appreciated that can with computer program instructions come realize these structure charts and/or
The combination of each frame and these structure charts and/or the frame in block diagram and/or flow graph in block diagram and/or flow graph.This technology is led
Field technique personnel be appreciated that these computer program instructions can be supplied to all-purpose computer, special purpose computer or other
The processor of programmable data processing method is realized, so as to pass through the processing of computer or other programmable data processing methods
Device performs the scheme specified in the frame of structure chart and/or block diagram and/or flow graph disclosed by the invention or multiple frames.
Those skilled in the art of the present technique are appreciated that in the various operations discussed in the present invention, method, flow
Step, measure, scheme can be replaced, changed, combined or deleted.Further, it is each with having been discussed in the present invention
Kind operation, method, other steps in flow, measure, scheme can also be replaced, changed, reset, decomposed, combined or deleted.
Further, it is of the prior art to have and the step in the various operations disclosed in the present invention, method, flow, measure, scheme
It can also be replaced, changed, reset, decomposed, combined or deleted.
Described above is only some embodiments of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (20)
1. a kind of method that virtual multiple sound channel plays audio file, it is characterised in that realized using each terminal in set of terminal
Virtual multiple sound channel plays audio file, and the set of terminal includes K terminal, K >=2, and terminal A is any in the set of terminal
One terminal, methods described include：
The terminal A obtains the location map and user's listened position of each terminal in the set of terminal；
The terminal A obtains channel transfer functions using the location map and user's listened position, and according to the channel
The audio signal parameters of each terminal when the filter function matrix computations virtual multiple sound channel that transmission function determines plays；
The terminal A indicates that each terminal in the set of terminal plays the audio text according to respective audio signal parameters
Part.
2. the method that virtual multiple sound channel according to claim 1 plays audio file, it is characterised in that the terminal A is obtained
The location map of each terminal in the set of terminal is taken, is specifically included：
The terminal A indicates that each terminal carries out estimation of noise energy in supersonic frequency and sends ultrasound letter in the set of terminal
Number；
The terminal A receives the received signal to noise ratio that each terminal in the set of terminal is sent and the time for receiving ultrasonic wave, really
Fixed the distance between each terminal and other-end；
The terminal A obtains the position of each terminal in the set of terminal according to the distance between each terminal of the set of terminal
Distribution map.
3. the method that virtual multiple sound channel according to claim 2 plays audio file, it is characterised in that the terminal A connects
Receive received signal to noise ratio that each terminal in the set of terminal sends and the time for receiving ultrasonic wave, determine each terminal with
The distance between other-end, specifically include：
The terminal A obtains the received signal to noise ratio of each terminal of set of terminal, the received signal to noise ratio of more each terminal it is big
It is small；
The big terminal of received signal to noise ratio is sent into the distance that ultrasonic signal is calculated, as the terminal for sending ultrasonic signal and its
The distance between his terminal.
4. the method that virtual multiple sound channel according to claim 3 plays audio file, it is characterised in that the noise energy
The formula of estimation is as follows：
<mrow>
<msub>
<mi>E</mi>
<mi>N</mi>
</msub>
<mo>=</mo>
<munder>
<mo>&Sigma;</mo>
<mi>n</mi>
</munder>
<msup>
<msub>
<mi>E</mi>
<mn>0</mn>
</msub>
<mn>2</mn>
</msup>
<mrow>
<mo>(</mo>
<mi>n</mi>
<mo>)</mo>
</mrow>
</mrow>
Wherein, ENFor noise energy, E0(n) noise signal for n-th after filtering；N represent implication be：Noise signal is adopted
Sampling point numerical value, E0(n) it is noise signal after being filtered to the signal that terminal receives.
5. the method that virtual multiple sound channel according to claim 4 plays audio file, it is characterised in that calculate the reception
The formula of signal to noise ratio is as follows：
<mrow>
<mi>P</mi>
<mo>=</mo>
<mfrac>
<mrow>
<msubsup>
<mi>&Sigma;</mi>
<mrow>
<mi>n</mi>
<mo>=</mo>
<mn>0</mn>
</mrow>
<mrow>
<msub>
<mi>F</mi>
<mi>S</mi>
</msub>
<mo>&times;</mo>
<mi>G</mi>
</mrow>
</msubsup>
<msup>
<mi>y</mi>
<mn>2</mn>
</msup>
<mrow>
<mo>(</mo>
<mi>n</mi>
<mo>)</mo>
</mrow>
</mrow>
<msub>
<mi>E</mi>
<mi>N</mi>
</msub>
</mfrac>
</mrow>
Wherein, P is received signal to noise ratio, ENFor noise energy, y (n) is n-th after filtering of ultrasonic signal, FsFor sample rate, G is
Sampling time, G=0.1s.
6. the method that virtual multiple sound channel according to claim 1 plays audio file, it is characterised in that the terminal A meters
The formula for calculating the audio signal parameters of each terminal when virtual multiple sound channel plays is as follows：
xk=s1*g1k+s2*g2k
Wherein, k identifies each terminal number in set of terminal respectively, and 1,2 identify human ear numbering respectively, and s1, s2 are respectively to set
The ears acoustic audio signal heard of left and right ear, g1k、g2kTerminal k filter function, x are identified respectivelykMark is whole respectively
The voice data for holding k to play.
7. the method that virtual multiple sound channel according to claim 6 plays audio file, it is characterised in that pass through below equation
Group computing terminal k filter function g1kAnd g2k：
<mrow>
<mtable>
<mtr>
<mtd>
<mrow>
<msub>
<mi>y</mi>
<mi>j</mi>
</msub>
<mo>=</mo>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>i</mi>
<mo>=</mo>
<mn>1</mn>
</mrow>
<mn>2</mn>
</munderover>
<mrow>
<mo>(</mo>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>k</mi>
<mo>=</mo>
<mn>1</mn>
</mrow>
<mi>K</mi>
</munderover>
<msub>
<mi>g</mi>
<mrow>
<mi>i</mi>
<mi>k</mi>
</mrow>
</msub>
<msub>
<mi>h</mi>
<mrow>
<mi>k</mi>
<mi>j</mi>
</mrow>
</msub>
<mo>)</mo>
</mrow>
<mo>*</mo>
<msub>
<mi>s</mi>
<mi>i</mi>
</msub>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow>
<msub>
<mi>y</mi>
<mi>j</mi>
</msub>
<mo>=</mo>
<msub>
<mi>s</mi>
<mi>j</mi>
</msub>
</mrow>
</mtd>
</mtr>
</mtable>
<mo>;</mo>
</mrow>
Wherein, j identifies human ear numbering, j=1,2；The numbering of each terminal, K represent the terminal in set of terminal in k mark set of terminal
Number, the ears acoustic audio signal that the left and right ear that s1, s2 are respectively set is heard, hkjChannel for terminal k to ear j
Function.
8. the method that virtual multiple sound channel according to claim 6 plays audio file, it is characterised in that when the set of terminal
In when being terminal A and terminal B, and user's listened position is between the terminal A and terminal B, then terminal A and terminal B is played
Voice data be：
Wherein, x1Be left voice box play data, x2The data that right voice box plays.
9. the method that virtual multiple sound channel according to claim 1 plays audio file, it is characterised in that in the set of terminal
Each terminal between information communication can be carried out by following any one communication mode, the communication mode include：
WIFI, near-field communication NFC and bluetooth.
10. the method that virtual multiple sound channel according to claim 9 plays audio file, it is characterised in that also include：
The location map and user's listened position are sent to the other-end in the set of terminal by the terminal A；
Each terminal in the set of terminal shows the location map and user's listened position.
11. a kind of virtual multiple sound channel plays the terminal of audio file, it is characterised in that including：
Receiving module, for obtaining the location map of each terminal and user's listened position in set of terminal；
Computing module, for obtaining channel transfer functions using the location map and user's listened position, and according to described
The audio signal parameters of each terminal when the filter function matrix computations virtual multiple sound channel that channel transfer functions determine plays；
Indicating module, for indicating that each terminal in the set of terminal plays the audio according to respective audio signal parameters
File.
12. virtual multiple sound channel according to claim 11 plays the terminal of audio file, it is characterised in that the reception mould
Block is used for the location map for obtaining each terminal in the set of terminal, specifically includes：
The indicating module is used to indicate that each terminal to carry out estimation of noise energy and hair in supersonic frequency in the set of terminal
Send ultrasonic signal；
The receiving module is for receiving the received signal to noise ratio and receive ultrasonic wave that each terminal in the set of terminal is sent
Time, determine the distance between each terminal and other-end；
The receiving module is used for according to the distance between each terminal of the set of terminal, obtains each terminal in the set of terminal
Location map.
13. virtual multiple sound channel according to claim 12 plays the terminal of audio file, it is characterised in that the reception mould
Block is used to receive the received signal to noise ratio that each terminal in the set of terminal is sent and the time for receiving ultrasonic wave, determines described each
The distance between individual terminal and other-end, are specifically included：
The receiving module is used for the received signal to noise ratio for obtaining each terminal of the set of terminal, the reception noise of more each terminal
The size of ratio；
The receiving module is used for the distance that the big terminal of received signal to noise ratio is sent ultrasonic signal and is calculated, super as sending
The distance between the terminal of acoustical signal and other-end.
14. virtual multiple sound channel according to claim 13 plays the terminal of audio file, it is characterised in that the calculating mould
The formula that block is used to calculate the noise energy estimation is as follows：
<mrow>
<msub>
<mi>E</mi>
<mi>N</mi>
</msub>
<mo>=</mo>
<munder>
<mo>&Sigma;</mo>
<mi>n</mi>
</munder>
<msup>
<msub>
<mi>E</mi>
<mn>0</mn>
</msub>
<mn>2</mn>
</msup>
<mrow>
<mo>(</mo>
<mi>n</mi>
<mo>)</mo>
</mrow>
</mrow>
Wherein, ENFor noise energy, E0(n) noise signal for n-th after filtering, the implication that n is represented are：Noise signal is adopted
Sampling point numerical value, E0(n) it is noise signal after being filtered to the signal that terminal receives.
15. virtual multiple sound channel according to claim 14 plays the terminal of audio file, it is characterised in that the calculating mould
The formula that block is used to calculate the received signal to noise ratio is as follows：
<mrow>
<mi>P</mi>
<mo>=</mo>
<mfrac>
<mrow>
<msubsup>
<mi>&Sigma;</mi>
<mrow>
<mi>n</mi>
<mo>=</mo>
<mn>0</mn>
</mrow>
<mrow>
<msub>
<mi>F</mi>
<mi>S</mi>
</msub>
<mo>&times;</mo>
<mi>G</mi>
</mrow>
</msubsup>
<msup>
<mi>y</mi>
<mn>2</mn>
</msup>
<mrow>
<mo>(</mo>
<mi>n</mi>
<mo>)</mo>
</mrow>
</mrow>
<msub>
<mi>E</mi>
<mi>N</mi>
</msub>
</mfrac>
</mrow>
Wherein, P is received signal to noise ratio, ENFor noise energy, y (n) is n-th after filtering of ultrasonic signal, FsFor sample rate, G is
Sampling time, G=0.1s.
16. virtual multiple sound channel according to claim 11 plays the terminal of audio file, it is characterised in that the calculating mould
The formula that block is used to calculate the audio signal parameters of each terminal when virtual multiple sound channel plays is as follows：
xk=s1*g1k+s2*g2k
Wherein, k identifies each terminal number in set of terminal respectively, and 1,2 identify human ear numbering respectively, and s1, s2 are respectively to set
The ears acoustic audio signal heard of left and right ear, g1k、g2kTerminal k filter function, x are identified respectivelykMark is whole respectively
The voice data for holding k to play.
17. virtual multiple sound channel according to claim 16 plays the terminal of audio file, it is characterised in that the calculating mould
Block is used for the filter function g by below equation group computing terminal k1kAnd g2k：
<mrow>
<mtable>
<mtr>
<mtd>
<mrow>
<msub>
<mi>y</mi>
<mi>j</mi>
</msub>
<mo>=</mo>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>i</mi>
<mo>=</mo>
<mn>1</mn>
</mrow>
<mn>2</mn>
</munderover>
<mrow>
<mo>(</mo>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>k</mi>
<mo>=</mo>
<mn>1</mn>
</mrow>
<mi>K</mi>
</munderover>
<msub>
<mi>g</mi>
<mrow>
<mi>i</mi>
<mi>k</mi>
</mrow>
</msub>
<msub>
<mi>h</mi>
<mrow>
<mi>k</mi>
<mi>j</mi>
</mrow>
</msub>
<mo>)</mo>
</mrow>
<mo>*</mo>
<msub>
<mi>s</mi>
<mi>i</mi>
</msub>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow>
<msub>
<mi>y</mi>
<mi>j</mi>
</msub>
<mo>=</mo>
<msub>
<mi>s</mi>
<mi>j</mi>
</msub>
</mrow>
</mtd>
</mtr>
</mtable>
<mo>;</mo>
</mrow>
Wherein, j identifies human ear numbering, j=1,2；The numbering of each terminal, K represent the terminal in set of terminal in k mark set of terminal
Number, the ears acoustic audio signal that the left and right ear that s1, s2 are respectively set is heard, hkjChannel for terminal k to ear j
Function.
18. virtual multiple sound channel according to claim 11 plays the terminal of audio file, it is characterised in that also includes communication
Module,
The computing module is used for by entering between each terminal in WIFI, near-field communication NFC or bluetooth, with the set of terminal
Row information connects.
19. virtual multiple sound channel according to claim 18 plays the terminal of audio file, it is characterised in that also includes：It is aobvious
Show module；
The location map and user's listened position are sent to the other-end in the set of terminal by the communication module；
The display module shows the location map and user's listened position.
20. the system that a kind of virtual multiple sound channel plays audio file, it is characterised in that including more than two claim 11-19
Any described virtual multiple sound channel plays the terminal of audio file.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410067398.0A CN104869523B (en) | 2014-02-26 | 2014-02-26 | Virtual multiple sound channel plays method, terminal and the system of audio file |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410067398.0A CN104869523B (en) | 2014-02-26 | 2014-02-26 | Virtual multiple sound channel plays method, terminal and the system of audio file |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104869523A CN104869523A (en) | 2015-08-26 |
| CN104869523B true CN104869523B (en) | 2018-03-16 |
Family
ID=53914955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410067398.0A Active CN104869523B (en) | 2014-02-26 | 2014-02-26 | Virtual multiple sound channel plays method, terminal and the system of audio file |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104869523B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105611480A (en) * | 2015-08-28 | 2016-05-25 | 宇龙计算机通信科技(深圳)有限公司 | Audio playing method and terminal |
| CN105261385B (en) * | 2015-10-29 | 2018-12-21 | 努比亚技术有限公司 | A kind of sound recording method and device |
| CN106231489A (en) * | 2016-07-25 | 2016-12-14 | 深圳市米尔声学科技发展有限公司 | The treating method and apparatus of audio frequency |
| CN106488363B (en) * | 2016-09-29 | 2020-09-22 | Tcl通力电子（惠州）有限公司 | Sound channel distribution method and device of audio output system |
| CN106375928A (en) * | 2016-11-24 | 2017-02-01 | 深圳市佳都实业发展有限公司 | Master-control advertisement player, auxiliary advertisement player and advertisement player array with 3D sound filed function |
| CN111034225B (en) * | 2017-08-17 | 2021-09-24 | 高迪奥实验室公司 | Audio signal processing method and apparatus using ambisonic signal |
| CN109831735B (en) * | 2019-01-11 | 2022-10-11 | 歌尔科技有限公司 | Audio playing method, device, system and storage medium suitable for indoor environment |
| CN112312366B (en) * | 2019-07-26 | 2022-10-28 | 华为技术有限公司 | Method, electronic equipment and system for realizing functions through NFC (near field communication) tag |
| CN111641916B (en) * | 2020-04-29 | 2022-09-06 | 维沃移动通信有限公司 | Audio sharing method and electronic equipment |
| CN113411725B (en) * | 2021-06-25 | 2022-09-02 | Oppo广东移动通信有限公司 | Audio playing method and device, mobile terminal and storage medium |
| CN117193702A (en) * | 2023-08-10 | 2023-12-08 | 深圳市昂晖电子科技有限公司 | Playing control method based on embedded player and related device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064781A (en) * | 2010-10-29 | 2011-05-18 | 华为终端有限公司 | Method and device for adjusting audio frequency of terminal and terminal |
| CN101465910B (en) * | 2009-01-12 | 2012-10-03 | 华为终端有限公司 | Control method, terminal and system for playing stereo based on mobile terminal |
| CN102737635A (en) * | 2011-04-08 | 2012-10-17 | 华为终端有限公司 | Audio coding method and audio coding device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100678929B1 (en) * | 2003-11-24 | 2007-02-07 | 삼성전자주식회사 | Method For Playing Multi-Channel Digital Sound, And Apparatus For The Same |
| CN101159850B (en) * | 2007-11-21 | 2010-10-27 | 华为软件技术有限公司 | Method of implementing multi-terminal cooperation control playing video data and play control proxy |
| CN101547245A (en) * | 2008-03-25 | 2009-09-30 | 中兴通讯股份有限公司 | Method for playing multitrack audio file through a mobile phone |
| CN102270456B (en) * | 2010-06-07 | 2012-11-21 | 华为终端有限公司 | Method and device for audio signal mixing processing |
| CN102340730A (en) * | 2010-07-23 | 2012-02-01 | 希姆通信息技术（上海）有限公司 | Method for playing multi-channel stereo by matching multiple mobile phones |
| CN102387171B (en) * | 2010-08-25 | 2016-08-03 | 株式会社Ntt都科摩 | The multiterminal of music work in coordination with player method, multiterminal work in coordination with music playing system |
| CN202374319U (en) * | 2011-06-25 | 2012-08-08 | 播思通讯技术（北京）有限公司 | Music play system based on mobile terminal |
| CN103065658B (en) * | 2012-12-18 | 2015-07-08 | 华为技术有限公司 | Control method and device of multi-terminal synchronized playing |
| CN103338204B (en) * | 2013-07-05 | 2016-12-28 | 深圳市云动创想科技有限公司 | A kind of audio synchronization output method and system |
| CN103533054B (en) * | 2013-10-15 | 2017-02-01 | 中国联合网络通信集团有限公司 | Method for realizing coordinated processing among multiple terminals and multi-terminal coordinated processing device |
-
2014
- 2014-02-26 CN CN201410067398.0A patent/CN104869523B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101465910B (en) * | 2009-01-12 | 2012-10-03 | 华为终端有限公司 | Control method, terminal and system for playing stereo based on mobile terminal |
| CN102064781A (en) * | 2010-10-29 | 2011-05-18 | 华为终端有限公司 | Method and device for adjusting audio frequency of terminal and terminal |
| CN102737635A (en) * | 2011-04-08 | 2012-10-17 | 华为终端有限公司 | Audio coding method and audio coding device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104869523A (en) | 2015-08-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104869523B (en) | Virtual multiple sound channel plays method, terminal and the system of audio file | |
| EP2356653B1 (en) | Apparatus and method for generating a multichannel signal | |
| EP3320692B1 (en) | Spatial audio processing apparatus | |
| CN1942017B (en) | Apparatus and method to cancel crosstalk and stereo sound generation system using the same | |
| CN103348703B (en) | In order to utilize the reference curve calculated in advance to decompose the apparatus and method of input signal | |
| Pulkki | Spatial sound reproduction with directional audio coding | |
| CN101263742B (en) | Audio coding | |
| EP2641244B1 (en) | Converting multi-microphone captured signals to shifted signals useful for binaural signal processing | |
| US10097943B2 (en) | Apparatus and method for reproducing recorded audio with correct spatial directionality | |
| CN101105941B (en) | System for enhancing sound definition | |
| US20150317981A1 (en) | Orientation Based Microphone Selection Apparatus | |
| US20120148075A1 (en) | Method for optimizing reproduction of audio signals from an apparatus for audio reproduction | |
| US20120275606A1 (en) | METHOD OF AND DEVICE FOR GENERATING AND PROCESSING PARAMETERS REPRESENTING HRTFs | |
| JP4232775B2 (en) | Sound field correction device | |
| CN110972033A (en) | System and method for modifying audio data information based on one or more Radio Frequency (RF) signal reception and/or transmission characteristics | |
| US20130051572A1 (en) | Method for optimizing reproduction of audio signals from an apparatus for audio reproduction | |
| CN100594744C (en) | Generation of a sound signal | |
| CN104170408A (en) | A method of applying a combined or hybrid sound -field control strategy | |
| CN101411063B (en) | Filter adaptive frequency resolution | |
| CN105264911A (en) | Audio apparatus | |
| CN102325298A (en) | Audio signal processor and acoustic signal processing method | |
| GB2554446A (en) | Spatial audio signal format generation from a microphone array using adaptive capture | |
| CN104247461A (en) | Audio reproduction systems and methods | |
| Yang et al. | Auralization study of optimum reverberation times for speech intelligibility for normal and hearing-impaired listeners in classrooms with diffuse sound fields | |
| JP2007013707A (en) | Wireless speaker system, audio signal transmitter, reproduced sound phase synchronizing device, reproduced sound phase synchronizing method and reproduced sound phase synchronization program |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |