CN105657609A - Method and device for playing control of bone conduction headsets and bone conduction headset equipment - Google Patents

Method and device for playing control of bone conduction headsets and bone conduction headset equipment Download PDF

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Publication number
CN105657609A
CN105657609A CN201610051770.8A CN201610051770A CN105657609A CN 105657609 A CN105657609 A CN 105657609A CN 201610051770 A CN201610051770 A CN 201610051770A CN 105657609 A CN105657609 A CN 105657609A
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CN
China
Prior art keywords
bone conduction
conduction earphone
sound source
distance
simulation sound
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CN201610051770.8A
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Chinese (zh)
Inventor
刘东声
王健
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Application filed by Yulong Computer Telecommunication Scientific Shenzhen Co Ltd filed Critical Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Priority to CN201610051770.8A priority Critical patent/CN105657609A/en
Priority to PCT/CN2016/074842 priority patent/WO2017128481A1/en
Publication of CN105657609A publication Critical patent/CN105657609A/en
Pending legal-status Critical Current

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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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1008—Earpieces of the supra-aural or circum-aural type
    • 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
    • H04R5/033—Headphones for stereophonic communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/13—Hearing devices using bone conduction transducers

Abstract

The invention discloses a method and device for playing control of bone conduction headsets, which are applied to bone conduction headset equipment. The bone conduction headset equipment comprises at least one bone conduction headset used around a left ear and at least one bone conduction headset used around a right ear. The method comprises the following steps of obtaining the location information and the original volume of an analog sound source; computing a distance between the analog sound source and each bone conduction headset according to the location information and computing the time needed for propagating the analog sound source to the corresponding bone conduction headset through the distance; computing the volume for propagating the analog sound source to the corresponding bone conduction headset according to the original volume and the distance; and controlling each bone conduction headset to play according to the corresponding time and the corresponding volume. According to the method and the device, a sound propagation effect at each bone conduction headset is obtained through computing the location information of the analog sound source and then the bone conduction headset is controlled to play, so that a playing content is realistic. The invention also discloses the bone conduction headset equipment comprising the device for playing control of the bone conduction headset.

Description

Control method for playing back, device and the bone conduction earphone equipment of bone conduction earphone
Technical field
The present invention relates to technical field of electronic equipment, more particularly, relate to a kind of Play Control side of bone conduction earphoneMethod and device. In addition the bone conduction earphone that, the invention still further relates to a kind of broadcast control device that comprises above-mentioned bone conduction earphone is establishedStandby.
Background technology
Ear speaker device uses air transmitted to realize the propagation of sound conventionally, the sound of earphone imported in ear, user'sSound is obtained in ear-drum and cochlea effect. , there is a kind of earphone of osteoacusis mode that passes through present stage, and osteoacusis is a kind of sound conductionMode, is converted into the mechanical oscillation of different frequency by sound, by people's skull, osseous labyrinth, the transmission of inner ear lymph liquid, spiralDevice, auditory nerve, auditory center are transmitted sound wave. With respect to the classical sound conduction mode that produces sound wave by vibrating diaphragm, osteoacusisSaved the step that many sound waves transmit, can in noisy environment, realize sound-reducing clearly, and sound wave can be because of yetFor diffusion in air has influence on other people.
But for the audio-video product market of diversification and high levelization day by day, the bone conduction earphone of common audioCan not meet its changeable needs. For example, existing bone conduction earphone only can be realized common audio, not tool of common audioThere is the sense of reality, can not produce realistic sound.
In sum, how providing a kind of bone conduction earphone that can produce sense of reality audio, is current art technologyPersonnel's problem demanding prompt solution.
Summary of the invention
In view of this, the object of this invention is to provide a kind of control method for playing back and device of bone conduction earphone, the methodCan control bone conduction earphone with device and produce 3D audio, make play content realistic.
Another object of the present invention is to provide a kind of osteoacusis ear of the broadcast control device that comprises above-mentioned bone conduction earphoneMachine equipment, this equipment can be realized 3D audio.
To achieve these goals, the invention provides following technical scheme:
A control method for playing back for bone conduction earphone, is applied to bone conduction earphone equipment, described bone conduction earphone equipmentComprise at least one bone conduction earphone in left ear week with at least one bone conduction earphone in auris dextra week, comprising:
Obtain positional information and the original sound volume of simulation sound source;
According to the distance of simulating sound source and described bone conduction earphone described in described positional information calculation, by described distance meterCalculate described simulation sound source and propagate into the time that corresponding described bone conduction earphone needs; According to described original sound volume and described distanceCalculate the volume that described simulation sound source propagates into corresponding described bone conduction earphone;
Controlling described bone conduction earphone plays according to the described time of correspondence and corresponding described volume.
Preferably, described according to the step of simulating the distance of sound source and described bone conduction earphone described in described positional information calculationSuddenly, comprising:
Obtain the positional information of described bone conduction earphone, according to the positional information of described simulation sound source and described osteoacusis earThe positional information of machine, calculates the distance of described simulation sound source and described bone conduction earphone.
Preferably, described according to the step of simulating the distance of sound source and described bone conduction earphone described in described positional information calculationSuddenly, comprising:
Setting ears distance center is XOY reference axis initial point;
In the time that described bone conduction earphone is positioned on the XOY plane of reference axis, according to formulaCalculate the distance S of simulation sound source and described bone conduction earphonen0, wherein, when the Y of described bone conduction earphone coordinate is when negative, described RGet negative value;
In the time that described bone conduction earphone is positioned in the XOZ plane of reference axis, according to formulaCalculate the distance S of simulation sound source and described bone conduction earphonen0, wherein, when the Z of described bone conduction earphone coordinate is when negative, described RGet negative value;
Wherein, the label that n is described bone conduction earphone, x0、y0、z0Be respectively X, Y and the Z axis coordinate figure of simulation sound source, LFor the half of ears distance, R is the distance of n bone conduction earphone to earmuff center, when n described bone conduction earphoneX coordinate when negative, described L gets negative value.
Preferably, the described described bone conduction earphone needs that propagate into correspondence by the described simulation sound source of described distance calculatingThe step of time, comprising:
Choose a described bone conduction earphone as benchmark bone conduction earphone, get described simulation sound source and propagate into described benchmarkThe time that bone conduction earphone needs is zero, according to formula Δ tni＝(Sn0-Si0)/V calculates described simulation sound source and propagates into other institutesState bone conduction earphone and the time difference Δ t that propagates into described benchmark bone conduction earphoneni, described simulation sound source propagates into corresponding instituteThe time that stating bone conduction earphone needs is the corresponding described time difference;
Wherein, the label that n is described bone conduction earphone, Sn0For the distance of simulation sound source and n described bone conduction earphone,Si0For the distance of described simulation sound source and described benchmark bone conduction earphone, V is the spread speed of described simulation sound source.
Preferably, described according to described original sound volume and described distance calculate described simulation sound source propagate into corresponding described inThe step of the volume of bone conduction earphone, comprising:
According to formula Pn＝P-10log[1/(4πSn0 2)] calculate described simulation sound source and propagate into n described osteoacusis earThe volume P at machine placen；
Wherein, the label that n is described bone conduction earphone, P is the original sound volume of described simulation sound source, Sn0For described simulated soundThe distance of source and n described bone conduction earphone.
A broadcast control device for bone conduction earphone, is applied to bone conduction earphone equipment, described bone conduction earphone equipmentComprise at least two bone conduction earphones, described bone conduction earphone acts on respectively left ear week and auris dextra week, comprising:
Acquisition module, for obtaining positional information and the original sound volume of simulation sound source;
Computing module, for according to the distance of simulating sound source and described bone conduction earphone described in described positional information calculation,Calculate described simulation sound source by described distance and propagate into the time that corresponding described bone conduction earphone needs; According to described originalVolume and the described simulation sound source of described distance calculating propagate into the volume of corresponding described bone conduction earphone;
Control module, carries out according to the described time of correspondence and corresponding described volume for controlling described bone conduction earphonePlay, described control module is used for and described bone conduction earphone control connection.
Preferably, described computing module is in the time that described bone conduction earphone is positioned on the XOY plane of reference axis, according to public affairsFormulaCalculate the distance S of simulation sound source and described bone conduction earphonen0, wherein, described boneWhen the Y coordinate of conduction earphone is negative, described R gets negative value; In the time that described bone conduction earphone is positioned in the XOZ plane of reference axis, rootAccording to formulaCalculate the distance S of simulation sound source and described bone conduction earphonen0, wherein, whenWhen the Z coordinate of described bone conduction earphone is negative, described R gets negative value;
Wherein, the label that n is described bone conduction earphone, x0、y0、z0Be respectively X, Y and the Z axis coordinate figure of simulation sound source, LFor the half of ears distance, R is the distance of described n bone conduction earphone to earmuff center, when n described osteoacusisWhen the X coordinate of earphone is negative, described L gets negative value.
Preferably, described computing module comprises time calculating unit, and described time calculating unit is used for choosing described in oneBone conduction earphone, as benchmark bone conduction earphone, is got described simulation sound source and is propagated into the time that described benchmark bone conduction earphone needsBe zero, according to formula Δ tni＝(Sn0-Si0)/V calculates described simulation sound source and propagates into described in other bone conduction earphone and propagate intoThe time difference Δ t of described benchmark bone conduction earphoneni, described simulation sound source propagate into that corresponding described bone conduction earphone needs timeBetween be the corresponding described time difference;
Wherein, the label that n is described bone conduction earphone, Sn0For the distance of simulation sound source and n described bone conduction earphone,Si0For the distance of described simulation sound source and described benchmark bone conduction earphone, V is the spread speed of described simulation sound source.
Preferably, described computing module comprises volume computing unit, and described volume computing unit is used for according to formula Pn＝P-10log[1/(4πSn0 2)] calculate described simulation sound source and propagate into the volume P at n described bone conduction earphone placen；
Wherein, the label that n is described bone conduction earphone, P is the original sound volume of described simulation sound source, Sn0For described simulated soundThe distance of source and n described bone conduction earphone.
A kind of bone conduction earphone equipment, comprises bone conduction earphone, also comprises the bone conduction earphone described in above-mentioned any oneBroadcast control device, the broadcast control device of described bone conduction earphone and at least 2 described bone conduction earphone control connections.
The invention provides a kind of control method for playing back and device of bone conduction earphone, by obtaining the position of simulation sound sourceInformation, thus calculate simulation sound source and the distance of bone conduction earphone and the sound transmission of this simulation sound source to this osteoacusis earThe time of machine, and by original sound volume and the above-mentioned distance of the simulation sound source obtained, calculate above-mentioned simulation sound source and propagate intoVolume when bone conduction earphone. In the left ear of user week with several above-mentioned bone conduction earphones are set respectively in auris dextra week, because eachThe difference of the distance of bone conduction earphone and simulation sound source, so time and the volume play also can be different. When being arranged on useIn the time that the bone conduction earphone in left ear week and auris dextra week is play according to the time calculating and volume, simulates real completelyThe effect of real sound, the nearer bone conduction earphone of range simulation sound source is more first play, and due to close together, sound attenuatingMeasure littlely, and broadcast sound volume is larger; And range simulation sound source more late broadcasting of bone conduction earphone far away, and due to distanceFar, sound attenuating amount is large, and broadcast sound volume is less. Said method obtains each bone by the positional information calculation of simulation sound source and passesThe sound transmission effect at guide lug machine place, and control this bone conduction earphone and play, can realize 3D audio, make the audio of playingThere is 3D stereoeffect, make play content realistic.
The present invention also provides a kind of bone conduction earphone equipment of the broadcast control device that comprises above-mentioned bone conduction earphone, shouldEquipment can be realized 3D audio, makes the result of broadcast of bone conduction earphone truer.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existingHave the accompanying drawing of required use in technical description to be briefly described, apparently, the accompanying drawing in the following describes is only thisInventive embodiment, for those of ordinary skill in the art, is not paying under the prerequisite of creative work, can also basisThe accompanying drawing providing obtains other accompanying drawing.
Fig. 1 is the flow chart of the specific embodiment of the control method for playing back of a kind of bone conduction earphone provided by the present invention;
Fig. 2 is the schematic diagram of the specific embodiment of the control method for playing back of a kind of bone conduction earphone provided by the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, completeDescribe, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment wholely. Based onEmbodiment in the present invention, those of ordinary skill in the art are not making obtain under creative work prerequisite every otherEmbodiment, belongs to the scope of protection of the invention.
Core of the present invention is to provide a kind of control method for playing back and device of bone conduction earphone, and the method and device canControl bone conduction earphone and produce 3D audio, make play content realistic.
Another core of the present invention is to provide a kind of osteoacusis ear of the broadcast control device that comprises above-mentioned bone conduction earphoneMachine equipment, this equipment can be realized 3D audio.
Please refer to Fig. 1 and Fig. 2, the concrete reality of the control method for playing back that Fig. 1 is a kind of bone conduction earphone provided by the present inventionExecute routine flow chart; Fig. 2 is the principle of the specific embodiment of the control method for playing back of a kind of bone conduction earphone provided by the present inventionFigure.
The invention provides a kind of control method for playing back of bone conduction earphone, be mainly used in bone conduction earphone equipment, boneConduction ear speaker device comprises at least one bone conduction earphone in left ear week with at least one osteoacusis ear in auris dextra weekMachine, comprising:
Step S1: positional information and the original sound volume of obtaining simulation sound source.
Above-mentioned simulation sound source is the sound source that bone conduction earphone equipment will be simulated, and need to should be mentioned that simulated soundThe positional information in source can be the positional information of simulated sound source in space, as with the relative position relation of some standards,Also can be specially the coordinate figure of simulation sound source in space coordinates. The original sound volume of simulation sound source is for simulation sound source is in simulated soundThe volume of the sound that send the position in source because sound can be propagated to all directions, and decays in communication process, so simulationThe original sound volume of sound source is greater than the volume that each position receives. In above-mentioned steps, obtain action, can be understood as and obtain oneIndividual signal, sounding position and the volume of in this signal, having carried the sound that bone conduction earphone equipment need to simulate.
Step S2: according to the distance of positional information calculation simulation sound source and bone conduction earphone, calculate simulated sound by distanceSource propagates into the time that corresponding bone conduction earphone needs; Calculating simulation sound source according to original sound volume and distance propagates into correspondingThe volume of bone conduction earphone.
In above-mentioned steps, positional information is the positional information of the simulation sound source of obtaining in step S1, and bone conduction earphoneFor in bone conduction earphone equipment for carrying out the earphone of vibration sounding. Pass according to this positional information calculation simulation sound source and each boneThe distance of guide lug machine, the method for calculating can have multiple, and wherein a kind of mode is obtain above-mentioned positional information and obtain osteoacusisThe positional information of earphone, by two positional informations are processed to calculating, obtains the distance of bone conduction earphone and simulation sound source.Obtain simulating sound source by above-mentioned distance and the calculation of simulation sound source velocity-of-propagation meter and propagate into each corresponding bone conduction earphone needsTime, because the distance of simulation sound source and each bone conduction earphone may be different, so the time needing also may difference.
In addition, can be according to the original sound volume of the simulation sound source of obtaining in step S1 and simulation sound source and each osteoacusis earThe distance of machine, calculates the volume after the decay of original sound volume in the time propagating into corresponding bone conduction earphone of simulation sound source.Consider that sound transmission and sound attenuation principle are main relevant with the propagation medium of sound, in different propagation mediums, propagateSpeed different with attenuation, can adjust according to specific circumstances for the calculating of propagation time and volume.
Step S3: control bone conduction earphone and play according to corresponding time and corresponding volume.
In above-mentioned steps, to each bone conduction earphone control play time, need to according in step S2, obtain eachThe time that bone conduction earphone is corresponding and corresponding volume are play. In this control mode, the load mode of signal can be with reference to existingThe Play Control mode of some control bone conduction earphones.
Need to should be mentioned that, bone conduction earphone equipment has two of left and right earmuff or support conventionally, for supporting and clothSetting in the bone conduction earphone in left ear week and auris dextra week.
The control method for playing back of a kind of bone conduction earphone provided by the present invention by obtain simulation sound source positional information,Thereby calculate simulation sound source and the distance of bone conduction earphone and the sound transmission of this simulation sound source and arrive this bone conduction earphoneTime, and by original sound volume and the above-mentioned distance of the simulation sound source obtained, calculate above-mentioned simulation sound source and propagate into bone and passVolume when guide lug machine. Finally, play according to corresponding time and corresponding volume by controlling above-mentioned bone conduction earphone.
In the left ear of user week be respectively provided in auris dextra week and lack after an above-mentioned bone conduction earphone, because each osteoacusis earMachine may there are differences with the distance of simulation sound source, so time and the volume play also can be different. When be arranged on forWhen the bone conduction earphone in left ear week and auris dextra week is play according to the time calculating and volume, Reality simulation completelyThe effect of sound, the nearer bone conduction earphone of range simulation sound source is more first play, and due to close together, sound attenuating amountLess, and broadcast sound volume is large; And range simulation sound source more late broadcasting of bone conduction earphone far away, and due to distant,Sound attenuating amount is large, and broadcast sound volume is less.
Said method obtains the sound transmission effect at each bone conduction earphone place by the positional information calculation of simulation sound source,And control this bone conduction earphone and play, can realize 3D audio, make the audio of playing there is 3D stereoeffect, in making to playHold realistic.
Need to should be mentioned that, the simulation sound source providing in the application is imaginary sound source, so the position of simulation sound sourceCan be by obtaining from predefined program or controller. For example, need the dead ahead of simulation from bone conduction earphone equipmentThe sound sending, simulates sound source and is located in the dead ahead of this bone conduction earphone.
In a specific embodiment provided by the present invention, in above-mentioned steps S2, simulate sound source according to positional information calculationStep with the distance of bone conduction earphone, can specifically comprise:
Step S20: obtain the positional information of bone conduction earphone, according to the simulation positional information of sound source and bone conduction earphonePositional information, calculates the distance of simulating sound source and bone conduction earphone.
In above-mentioned steps S20, can preset space coordinates, obtain the positional information of bone conduction earphone, this position letterBreath can be the coordinate figure of space coordinates etc. According to the simulation positional information of sound source and the position of each bone conduction earphone letterBreath, calculates respectively each bone conduction earphone and the distance of simulating sound source.
In the present embodiment, by obtaining respectively the positional information of each bone conduction earphone, and by this positional information and simulationThe positional information of sound source is calculated or is processed, and can obtain each bone conduction earphone and the distance of simulating sound source, and the method obtainsDistance accurately and reliably, and have suitable preferably for the calculating of the adjustable bone conduction earphone equipment of relative position and controlYing Xing.
On the other hand, in above-mentioned steps, need the positional information obtained more, may on acquisition process, have oneFixed complexity.
In another specific embodiment provided by the present invention, have one for bone conduction earphone relative position in equipmentDetermine the situation of particularity, wherein, according to the step of the distance of positional information calculation simulation sound source and bone conduction earphone, can pass throughThe mode that fixed value is set is calculated, and specifically comprises:
Step S21: setting ears distance center is XOY reference axis initial point.
Need to should be mentioned that, bone conduction earphone equipment is provided with two earmuffs conventionally, and two earmuffs are respectively used to carry twoThe bone conduction earphone of side, and earmuff is arranged on ear place conventionally, the mid point of the two earmuff lines of centres is ears distance center, willThis ears distance center is set as the origin of coordinates, establishes ears distance for L, and the distance of ears and this origin of coordinates is ears distanceFrom half, i.e. 0.5L.
Step S22: in the time that bone conduction earphone is positioned on the XOY plane of reference axis, according to formulaCalculate the distance S of simulation sound source and bone conduction earphonen0, wherein, when the Y of bone conduction earphone coordinate is when negative, R gets negative value;
In the time that bone conduction earphone is positioned in the XOZ plane of reference axis, according to formulaCalculate the distance S of simulation sound source and bone conduction earphonen0, wherein, when the Z of bone conduction earphone coordinate is when negative, R gets negative value;
Wherein, the label that n is bone conduction earphone, x0、y0、z0Be respectively X, Y and the Z axis coordinate figure of simulation sound source, L is twoThe half of ear distance, R is the distance of n bone conduction earphone to earmuff center, when the X of n bone conduction earphone coordinateWhen negative, L gets negative value.
In above-mentioned steps, the bone conduction earphone in diverse location in space coordinates is classified, particularly, canWith with reference to figure 2, in Fig. 2, taking 8 bone conduction earphones as example, label is 1 to 8 respectively, the position according to it in space coordinates,Can specifically determine that each bone conduction earphone and simulated sound spacing are from SnComputing formula, wherein, n corresponds to the label in Fig. 2.For example, No. 1 distance corresponding to bone conduction earphone in Fig. 2In like manner can obtain:
S 2 = ( x 0 + L ) 2 + ( y 0 + R ) 2 + z 0 2 ;
S 3 = ( x 0 + L ) 2 + ( z 0 - R ) 2 + y 0 2 ;
S 4 = ( x 0 + L ) 2 + ( z 0 + R ) 2 + y 0 2 ;
S 5 = ( x 0 - L ) 2 + ( y 0 - R ) 2 + z 0 2 ;
S 6 = ( x 0 - L ) 2 + ( y 0 + R ) 2 + z 0 2 ;
S 7 = ( x 0 - L ) 2 + ( z 0 - R ) 2 + y 0 2 ;
S 8 = ( x 0 - L ) 2 + ( z 0 + R ) 2 + y 0 2 ;
You need to add is that, the specific formula that above-mentioned 8 formula are step 22, L wherein and R are the absolute of lengthValue, the difference to some extent of mentioning in this and step 22, does not need to get negative value. In the present embodiment, by by the line mid point of earsBe set to the initial point of space coordinates, make the position of each earphone can be according to obtaining with the relation of initial point, computational methodsFor easy, obtain without the position to earphone, and this method is particularly useful for each earphone and earmuff center in equipmentSpacing equates and the changeless situation in position.
Need to should be mentioned that, in above-described embodiment, it is to consider near ears that the number of bone conduction earphone is set to 8The earphone that hoop is set is arranged, and this set angle and mode can be simulated the sound source of all angles, certainly, and bone conduction earphoneThe number of arranging and angle are not limited in above-mentioned situation.
In a specific embodiment provided by the present invention, calculate simulation sound source by distance and propagate into corresponding bone biographyThe step of the time that guide lug machine needs, can specifically comprise:
Step S23: choose a bone conduction earphone as benchmark bone conduction earphone, delivery onomatopoeia source propagates into benchmark bone and passesThe time that guide lug machine needs is zero, according to formula Δ tni＝(Sn0-Si0)/V calculates simulation sound source and propagates into other bone conduction earphonesWith the time difference Δ t that propagates into benchmark bone conduction earphoneni, the time that simulation sound source propagates into corresponding bone conduction earphone to be needed isThe corresponding time difference;
Wherein, the label that n is bone conduction earphone, Sn0For the distance of simulation sound source and n bone conduction earphone, Si0For mouldThe distance of onomatopoeia source and benchmark bone conduction earphone, V is the spread speed of simulation sound source.
In said method, choosing benchmark bone conduction earphone can a nearest osteoacusis ear of selected distance simulation sound sourceMachine, the time difference of calculating respectively all the other all earphones and benchmark bone conduction earphone.
Optionally, can not only be confined to above-mentioned situation for the calculating of time, can get each earphone respectivelyThe time of sound calculates, thereby by each earphone being carried out respectively to timing and controlling and play. And above-mentioned steps S23 gainedTo be the time difference that each earphone is play, the advantage of this method is without selecting multiple timing programs or equipment to divideOther each earphone is carried out to timing.
In another specific embodiment provided by the present invention, calculate the propagation of simulation sound source according to original sound volume and distanceThe step that arrives the volume of corresponding bone conduction earphone, can specifically comprise:
Step S24: according to formula Pn＝P-10log[1/(4πSn0 2)] calculate simulation sound source propagate into n osteoacusis earThe volume P at machine placen；
Wherein, the label that n is bone conduction earphone, P is the original sound volume of simulation sound source, Sn0For simulation sound source and n boneThe distance of conduction earphone.
In the present embodiment, be determined by original sound volume and propagation spacing for the computational methods of sound attenuating, propagateSpacing is the distance of above-mentioned simulation sound source and n bone conduction earphone. Can find out, these computational methods are not unique meterCalculation method, can specifically adjust according to propagation medium etc. for the computational methods of sound attenuating.
The control method for playing back of the bone conduction earphone that above-mentioned each embodiment provides is by obtaining the simulation that needs simulationThe position of sound source, and calculate the distance of simulating sound source and each bone conduction earphone, finally obtaining each bone conduction earphone should playTime and volume, thereby make user obtain the impression of real 3D audio.
The present invention also provides a kind of broadcast control device of bone conduction earphone, the broadcast control device master of bone conduction earphoneBe applied in bone conduction earphone equipment, bone conduction earphone equipment comprises at least two bone conduction earphones, and bone conduction earphone respectivelyAct on left ear week and auris dextra week, the broadcast control device of this bone conduction earphone mainly comprises acquisition module, computing module and controlMolding piece.
Acquisition module, for obtaining positional information and the original sound volume of simulation sound source.
Computing module, for according to the distance of positional information calculation simulation sound source and bone conduction earphone, calculates by distanceSimulation sound source propagates into the time that corresponding bone conduction earphone needs; Propagate into according to original sound volume and distance calculating simulation sound sourceThe volume of corresponding bone conduction earphone.
Control module, plays according to corresponding time and corresponding volume for controlling bone conduction earphone, controls mouldPiece is used for and bone conduction earphone control connection.
Wherein, acquisition module is connected with computing module, and computing module is connected with control module, need to should be mentioned that above-mentioned companyWhat connect indication can be electrical connection or for signal connection etc.
The broadcast control device of above-mentioned bone conduction earphone is mainly used in realizing the control method for playing back of above-mentioned bone conduction earphone,Visible, acquisition module correspondence completes the positional information of simulation sound source and the obtaining of original sound volume in above-mentioned steps S1, calculates mouldPiece correspondence completes in above-mentioned steps S2 and adjusts the distance, the calculating of time and volume, and the result of control module by computing module is to boneConduction earphone is controlled.
In a specific embodiment provided by the present invention, it is XOY that above-mentioned computing module is used for setting ears distance centerReference axis initial point, in the time that bone conduction earphone is positioned on the XOY plane of reference axis, according to formulaCalculate the distance S of simulation sound source and bone conduction earphonen0, wherein, bone conduction earphoneWhen Y coordinate is negative, R gets negative value; In the time that bone conduction earphone is positioned in the XOZ plane of reference axis, according to formulaCalculate the distance S of simulation sound source and bone conduction earphonen0, wherein, work as bone conduction earphoneZ coordinate when negative, R gets negative value;
Wherein, the label that n is bone conduction earphone, x0、y0、z0Be respectively X, Y and the Z axis coordinate figure of simulation sound source, L is twoThe half of ear distance, R is the distance of n bone conduction earphone to earmuff center, when the X of n bone conduction earphone coordinateWhen negative, L gets negative value.
Calculation process can, with reference to above-mentioned steps S21 and S22, repeat no more herein particularly.
Optionally, in computing module, the sensor for bone conduction earphone can be set, for obtaining bone conduction earphoneLocus, please refer to step S20, can be by the locus of the locus of bone conduction earphone and simulation sound source is carried outCalculate the spacing of the two.
On the basis of above-mentioned any embodiment, above-mentioned computing module can comprise time calculating unit, Time CalculationUnit is used for choosing a bone conduction earphone as benchmark bone conduction earphone, and delivery onomatopoeia source propagates into benchmark bone conduction earphone and needsThe time of wanting is zero, according to formula Δ tni＝(Sn0-Si0)/V calculates simulation sound source and propagates into other bone conduction earphones and propagate intoThe time difference Δ t of benchmark bone conduction earphoneni, the time that simulation sound source propagates into bone conduction earphone to be needed is the corresponding time difference;Wherein, the label that n is bone conduction earphone, Sn0For the distance of simulation sound source and n bone conduction earphone, Si0For simulation sound source withThe distance of benchmark bone conduction earphone, V is the spread speed of simulation sound source. Time calculating unit can be connected with control module, forResult is passed to control module, and particular content can refer step S23, repeats no more herein.
In the broadcast control device of a kind of bone conduction earphone provided by the present invention, computing module can also comprise audiovolume indicatorCalculate unit, volume computing unit is used for according to formula Pn＝P-10log[1/(4πSn0 2)] calculate simulation sound source and propagate into nThe volume P at bone conduction earphone placen; Wherein, the label that n is bone conduction earphone, P is the original sound volume of simulation sound source, Sn0For simulationThe distance of sound source and n bone conduction earphone. The present embodiment is corresponding with above-mentioned steps S24, and particular content can refer stepS24。
Control method for playing back and the device of the bone conduction earphone providing except above-described embodiment, it is a kind of that the present invention also providesComprise the bone conduction earphone equipment of said apparatus, this bone conduction earphone equipment mainly comprises bone conduction earphone and bone conduction earphoneBroadcast control device, the structure of other each several parts of this bone conduction earphone equipment please refer to prior art, repeats no more herein.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and otherThe difference of embodiment, between each embodiment identical similar part mutually referring to.
Control method for playing back to bone conduction earphone provided by the present invention, device and bone conduction earphone equipment carry out aboveDetailed introduction. Apply specific case herein principle of the present invention and embodiment have been set forth, above embodimentExplanation just for helping to understand method of the present invention and core concept thereof. It should be pointed out that common for the artTechnical staff, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, theseImprove and modify and also fall in the protection domain of the claims in the present invention.

Claims (10)

1. a control method for playing back for bone conduction earphone, is applied to bone conduction earphone equipment, described bone conduction earphone equipment bagDraw together at least one bone conduction earphone in left ear week with at least one bone conduction earphone in auris dextra week, it is characterized in that,Comprise:
Obtain positional information and the original sound volume of simulation sound source;
According to the distance of simulating sound source and described bone conduction earphone described in described positional information calculation, calculate institute by described distanceState simulation sound source and propagate into the time that corresponding described bone conduction earphone needs; Calculate according to described original sound volume and described distanceDescribed simulation sound source propagates into the volume of corresponding described bone conduction earphone;
Controlling described bone conduction earphone plays according to the described time of correspondence and corresponding described volume.
2. the control method for playing back of bone conduction earphone according to claim 1, is characterized in that, described according to described positionInformation is calculated the step of the distance of described simulation sound source and described bone conduction earphone, comprising:
Obtain the positional information of described bone conduction earphone, according to the positional information of described simulation sound source and described bone conduction earphonePositional information, calculates the distance of described simulation sound source and described bone conduction earphone.
3. the control method for playing back of bone conduction earphone according to claim 1, is characterized in that, described according to described positionInformation is calculated the step of the distance of described simulation sound source and described bone conduction earphone, comprising:
Setting ears distance center is XOY reference axis initial point;
In the time that described bone conduction earphone is positioned on the XOY plane of reference axis, according to formulaCalculate the distance S of simulation sound source and described bone conduction earphonen0, wherein, when the Y of described bone conduction earphone coordinate is when negative, described RGet negative value;
In the time that described bone conduction earphone is positioned in the XOZ plane of reference axis, according to formulaCalculate the distance S of simulation sound source and described bone conduction earphonen0, wherein, when the Z of described bone conduction earphone coordinate is when negative, described RGet negative value;
Wherein, the label that n is described bone conduction earphone, x0、y0、z0Be respectively X, Y and the Z axis coordinate figure of simulation sound source, L is twoThe half of ear distance, R is the distance of n bone conduction earphone to earmuff center, as the X of n described bone conduction earphoneWhen coordinate is negative, described L gets negative value.
4. according to the control method for playing back of the bone conduction earphone described in claims 1 to 3 any one, it is characterized in that, described inThe step that propagates into the time of corresponding described bone conduction earphone needs by the described simulation sound source of described distance calculating, comprising:
Choose a described bone conduction earphone as benchmark bone conduction earphone, get described simulation sound source and propagate into described benchmark bone biographyThe time that guide lug machine needs is zero, according to formula Δ tni＝(Sn0-Si0)/V calculates described simulation sound source and propagates into bone described in otherConduction earphone and the time difference Δ t that propagates into described benchmark bone conduction earphoneni, described simulation sound source propagates into corresponding described boneThe time that conduction earphone needs is the corresponding described time difference;
Wherein, the label that n is described bone conduction earphone, Sn0For the distance of simulation sound source and n described bone conduction earphone, Si0ForThe distance of described simulation sound source and described benchmark bone conduction earphone, V is the spread speed of described simulation sound source.
5. the control method for playing back of bone conduction earphone according to claim 4, is characterized in that, described according to described originalVolume and the described simulation sound source of described distance calculating propagate into the step of the volume of corresponding described bone conduction earphone, comprising:
According to formula Pn＝P-10log[1/(4πSn0 2)] calculate described simulation sound source and propagate into n described bone conduction earphone placeVolume Pn；
Wherein, the label that n is described bone conduction earphone, P is the original sound volume of described simulation sound source, Sn0For described simulation sound source withThe distance of n described bone conduction earphone.
6. a broadcast control device for bone conduction earphone, is applied to bone conduction earphone equipment, described bone conduction earphone equipment bagDraw together at least two bone conduction earphones, described bone conduction earphone acts on respectively left ear week and auris dextra week, it is characterized in that, comprising:
Acquisition module, for obtaining positional information and the original sound volume of simulation sound source;
Computing module, for according to the distance of simulating sound source and described bone conduction earphone described in described positional information calculation, passes throughDescribed distance is calculated described simulation sound source and is propagated into the time that corresponding described bone conduction earphone needs; According to described original sound volumeWith the described volume that propagates into corresponding described bone conduction earphone apart from the described simulation sound source of calculating;
Control module, broadcasts according to the described time of correspondence and corresponding described volume for controlling described bone conduction earphonePut, described control module is used for and described bone conduction earphone control connection.
7. the broadcast control device of bone conduction earphone according to claim 6, is characterized in that, described computing module is used forIn the time that described bone conduction earphone is positioned on the XOY plane of reference axis, according to formulaMeterCalculate the distance S of simulation sound source and described bone conduction earphonen0, wherein, when the Y coordinate of described bone conduction earphone is negative, described R gets negativeValue; In the time that described bone conduction earphone is positioned in the XOZ plane of reference axis, according to formulaCalculate the distance S of simulation sound source and described bone conduction earphonen0, wherein, when the Z of described bone conduction earphone coordinate is when negative, described RGet negative value;
Wherein, the label that n is described bone conduction earphone, x0、y0、z0Be respectively X, Y and the Z axis coordinate figure of simulation sound source, L is twoThe half of ear distance, R is the distance of described n bone conduction earphone to earmuff center, when n described bone conduction earphoneX coordinate when negative, described L gets negative value.
8. according to the broadcast control device of the bone conduction earphone described in claim 6 or 7, it is characterized in that described computing moduleComprise time calculating unit, described time calculating unit is used for choosing a described bone conduction earphone as benchmark osteoacusis earMachine, getting the time that described simulation sound source propagates into described benchmark bone conduction earphone and need is zero, according to formula Δ tni＝(Sn0-Si0)/V calculates described simulation sound source and propagates into bone conduction earphone and the time that propagates into described benchmark bone conduction earphone described in otherPoor Δ tni, the time that described simulation sound source propagates into corresponding described bone conduction earphone to be needed is the corresponding described time difference;
Wherein, the label that n is described bone conduction earphone, Sn0For the distance of simulation sound source and n described bone conduction earphone, Si0ForThe distance of described simulation sound source and described benchmark bone conduction earphone, V is the spread speed of described simulation sound source.
9. the broadcast control device of bone conduction earphone according to claim 8, is characterized in that, described computing module comprisesVolume computing unit, described volume computing unit is used for according to formula Pn＝P-10log[1/(4πSn0 2)] calculate described simulated soundSource propagates into the volume P at n described bone conduction earphone placen；
Wherein, the label that n is described bone conduction earphone, P is the original sound volume of described simulation sound source, Sn0For described simulation sound source withThe distance of n described bone conduction earphone.
10. a bone conduction earphone equipment, comprises bone conduction earphone, it is characterized in that, also comprises claim 6 to 9 anyThe broadcast control device of the bone conduction earphone described in, the broadcast control device of described bone conduction earphone and at least 2 described bonesConduction earphone control connection.
CN201610051770.8A 2016-01-26 2016-01-26 Method and device for playing control of bone conduction headsets and bone conduction headset equipment Pending CN105657609A (en)

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