CN105959854B - A kind of method and system for realizing that left and right sound is normally exported based on earphone - Google Patents
A kind of method and system for realizing that left and right sound is normally exported based on earphone Download PDFInfo
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- CN105959854B CN105959854B CN201610456867.7A CN201610456867A CN105959854B CN 105959854 B CN105959854 B CN 105959854B CN 201610456867 A CN201610456867 A CN 201610456867A CN 105959854 B CN105959854 B CN 105959854B
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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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1041—Mechanical or electronic switches, or control elements
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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
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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
- H04R2420/00—Details of connection covered by H04R, not provided for in its groups
- H04R2420/03—Connection circuits to selectively connect loudspeakers or headphones to amplifiers
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Abstract
The present invention discloses a kind of method and system for realizing that left and right sound is normally exported based on earphone, the method includes the steps: after earphone is inserted into intelligent terminal, it obtains the coordinate data of current earphone in real time by the direction sensor being arranged on earphone, and the coordinate data is uploaded to control module；The control module parses the coordinate data of acquisition, obtains the angle-data of current earphone；Output high level or low level are judged according to the angle-data, and when exporting high level, control variable connector carries out the switching of left and right acoustic channels；When exporting low level, then without the hand-off process of left and right acoustic channels.Can realize no matter whether user wears anti-earphone, can accurately hear the sound of left and right acoustic channels, splendid audio experience is brought to user through the invention.
Description
Technical field
The present invention relates to earphone field more particularly to a kind of method normally exported based on earphone realization left and right sound and it is
System.
Background technique
As social development is getting faster, Internet technology and higher and higher with the combination degree of electronic technology.Mobile phone
And mancarried device popularization degree is higher and higher, multimedia function is a kind of most commonly used application of consumer-elcetronics devices user,
How to improve user experience and user's impression becomes each producer and requires to consider the problems of.Audio-video is a system
Design, many producers are only limited to using better device on the basis of oneself this product, and the accessory of flower higher costs carries out
Raising listens reward to experience, and improves sound quality, however improving the various indexs of audio-frequency test is all that extremely complex system engineering is designed in rear end.
The function in the industry more by audio setting is arranged on multimedia terminal equipment at present, and earphone is then stopped always
The improvement and optimization in ID and sense of hearing are stayed in, however these improved earphones still fall within the scope of conventional earphone.These
Conventional earphone does not have the function of switching right and left sound channel, therefore be easy to cause use after being inserted on multimedia terminal equipment
There is left and right Er Dai anti-situation when using these earphones in family, to influence the output effect of sound quality.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
In view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide one kind realizes that left and right sound is normal based on earphone
The method and system of output, it is intended to solve the function that existing earphone does not have switching right and left sound channel, user is easy to cause to use
When there is the anti-situation of left and right Er Dai, thus the problem of influencing sound quality output effect.
Technical scheme is as follows:
A method of realizing that left and right sound normally exports based on earphone, wherein comprising steps of
A, after earphone is inserted into intelligent terminal, current earphone is obtained by the direction sensor being arranged on earphone in real time
Coordinate data, and the coordinate data is uploaded to the control module on the earphone；
B, the control module parses the coordinate data of acquisition, obtains the angle-data of current earphone；
C, output high level or low level are judged according to the angle-data, when exporting high level, control is arranged in institute
State the switching that the variable connector on earphone carries out left and right acoustic channels；When exporting low level, then without the switching of left and right acoustic channels at
Reason.
Preferably, the method for realizing that left and right sound is normally exported based on earphone, wherein before the step A further include:
A00, after earphone is inserted into intelligent terminal, to control module, direction sensor and power supervisor carry out just
Beginningization processing；
A01, the control module real-time monitoring MIC foot voltage and according to monitoring result switch mode, it is described when monitoring
When MIC foot voltage is 1.8V, the power supervisor switches to charge mode and powers to earphone；When monitoring MIC foot electricity
When pressure is 2.5V, the power supervisor switches to access control model and controls variable connector.
Preferably, the method for realizing that left and right sound is normally exported based on earphone, wherein the step C is specifically included:
C1, when the angle-data of current earphone is greater than 0 °, export high level, control variable connector carries out left and right acoustic channels
Switching；
C2, when the angle-data of current earphone is less than 0 °, export low level, then without the switching of left and right acoustic channels at
Reason.
A kind of system for realizing that left and right sound is normally exported based on earphone, wherein include:
Coordinate data obtains uploading module, for passing through the side being arranged on earphone after earphone is inserted into intelligent terminal
It obtains the coordinate data of current earphone in real time to sensor, and the coordinate data is uploaded to control module；
Control module obtains the angle-data of current earphone for parsing to the coordinate data of acquisition；
Track switching module, for judging output high level or low level according to the angle-data, when output high level
When, control variable connector carries out the switching of left and right acoustic channels；When exporting low level, then without the hand-off process of left and right acoustic channels.
Preferably, the system for realizing that left and right sound is normally exported based on earphone, wherein further include:
Initialization module, for after earphone is inserted into intelligent terminal, to control module, direction sensor and power supply pipe
It manages device and carries out initialization process；
Power supervisor switching module is cut for the control module real-time monitoring MIC foot voltage and according to monitoring result
Mold changing formula, when monitoring the MIC foot voltage is 1.8V, the power supervisor switches to charge mode and powers to earphone；
When monitoring the MIC foot voltage is 2.5V, the power supervisor switches to access control model and carries out to variable connector
Control.
Preferably, the system for realizing that left and right sound is normally exported based on earphone, wherein the track switching module packet
It includes:
High level output unit, for when the angle-data of current earphone is greater than X °, exporting high level, control multichannel is opened
Put the switching of row left and right acoustic channels into；
Low level output unit, for exporting low level, then without a left side when the angle-data of current earphone is less than Y °
The hand-off process of right channel.
The utility model has the advantages that exactly left ear can hear a left side when listened to music using earphone or sound field is best when voice when
Channel sound, auris dextra piece can hear the sound of right channel, and the present invention is carried out by the coordinate data obtained to direction sensor
Parsing obtains the angle-data of current earphone, judges whether earphone is worn instead, then when being according to the angle-data of current earphone
High level is exported, control variable connector carries out the switching of left and right acoustic channels, makes user regardless of whether wearing anti-earphone, can accurately listen
To the sound of left and right acoustic channels, splendid audio experience is brought to user.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the method preferred embodiment normally exported based on earphone realization left and right sound of the present invention.
Fig. 2 is a kind of schematic diagram of earphone internal structure preferred embodiment of the present invention.
Fig. 3 is a kind of structural block diagram of the system preferred embodiment normally exported based on earphone realization left and right sound of the present invention.
Specific embodiment
The present invention provides a kind of method and system for realizing that left and right sound is normally exported based on earphone, to make mesh of the invention
, technical solution and effect it is clearer, clear, the present invention is described in more detail below.It should be appreciated that described herein
Specific embodiment be only used to explain the present invention, be not intended to limit the present invention.
Referring to Fig. 1, Fig. 1 is a kind of method preferred embodiment for realizing that left and right sound is normally exported based on earphone of the present invention
Flow chart, as shown, itself comprising steps of
S100, after earphone is inserted into intelligent terminal, obtained in real time currently by the direction sensor being arranged on earphone
The coordinate data of earphone, and the coordinate data is uploaded to control module；
S110, the control module parse the coordinate data of acquisition, obtain the angle-data of current earphone；
S120, output high level or low level are judged according to the angle-data, when exporting high level, control multichannel is opened
Put the switching of row left and right acoustic channels into；When exporting low level, then without the hand-off process of left and right acoustic channels.
In embodiments of the present invention, the present invention carries out parsing acquisition currently by the coordinate data obtained to direction sensor
The angle-data of earphone judges whether earphone is worn instead according to the angle-data of current earphone, high level is then exported when being, control
Variable connector processed carries out the switching of left and right acoustic channels, makes user regardless of whether wearing anti-earphone, can accurately hear left and right acoustic channels
Sound brings splendid audio experience to the use of user.
In step S100 of the present invention, after earphone is inserted into intelligent terminal, pass through the direction being arranged on earphone
Sensor obtains the coordinate data of current earphone in real time, and the coordinate data is uploaded to control module.
Specifically, the direction sensor is arranged on earphone, and it is 3 that the direction sensor, which is by a length,
Float array goes to indicate the location information of earphone, i.e., the current earphone coordinate data that the present invention is got is a three-dimensional seat
Mark, wherein the azimuth in first element (Z axis) expression direction the earth's core of the float array, the second of the float array
Element (X-axis) indicates the pitch angle that front and back is overturn by stationary state, and the third element (Y-axis) of the float array indicates
The flip angle of left and right overturning by stationary state.It is existing by the concrete principle that the direction sensor obtains coordinate data
Technology is not set forth in detail herein.
In step s 110, the control module parses the coordinate data of acquisition, obtains current earphone
Angle-data.Specifically, the present invention obtains the angle-data of current earphone by following arithmetic analysis:
Pass through following Code obtaining deflection matrix arrays first:
getRotationMatrix(float[] R, float[] I,
float[] gravity, float[] geomagnetic) {
// TODO: move this to native code for efficiency
float Ax = gravity[0];
float Ay = gravity[1];
float Az = gravity[2];
final float Ex = geomagnetic[0];
final float Ey = geomagnetic[1];
final float Ez = geomagnetic[2];
float Hx = Ey*Az - Ez*Ay;
float Hy = Ez*Ax - Ex*Az;
float Hz = Ex*Ay - Ey*Ax;
final float normH = (float)Math.sqrt(Hx*Hx + Hy*Hy + Hz*Hz);
if (normH < 0.1f) {
// device is close to free fall (or in space), or close to
// magnetic north pole. Typical values are > 100.
return false;
}
final float invH = 1.0f / normH;
Hx *= invH;
Hy *= invH;
Hz *= invH;
final float invA = 1.0f / (float)Math.sqrt(Ax*Ax + Ay*Ay + Az*
Az);
Ax *= invA;
Ay *= invA;
Az *= invA;
final float Mx = Ay*Hz - Az*Hy;
final float My = Az*Hx - Ax*Hz;
final float Mz = Ax*Hy - Ay*Hx;
if (R != null) {
if (R.length == 9) {
R[0] = Hx; R[1] = Hy; R[2] = Hz;
R[3] = Mx; R[4] = My; R[5] = Mz;
R[6] = Ax; R[7] = Ay; R[8] = Az;
} else if (R.length == 16) {
R[0] = Hx; R[1] = Hy; R[2] = Hz; R[3] = 0;
R[4] = Mx; R[5] = My; R[6] = Mz; R[7] = 0;
R[8] = Ax; R[9] = Ay; R[10] = Az; R[11] = 0;
R[12] = 0; R[13] = 0; R[14] = 0; R[15] = 1;
}
}
if (I != null) {
Then the ground magnetic vector of oblique projection matrix is calculated:
final float invE = 1.0f / (float)Math.sqrt(Ex*Ex + Ey*Ey +
Ez*Ez);
final float c = (Ex*Mx + Ey*My + Ez*Mz) * invE;
final float s = (Ex*Ax + Ey*Ay + Ez*Az) * invE;
if (I.length == 9) {
I[0] = 1; I[1] = 0; I[2] = 0;
I[3] = 0; I[4] = c; I[5] = s;
I[6] = 0; I[7] =-s; I[8] = c;
} else if (I.length == 16) {
I[0] = 1; I[1] = 0; I[2] = 0;
I[4] = 0; I[5] = c; I[6] = s;
I[8] = 0; I[9] =-s; I[10]= c;
I[3] = I[7] = I[11] = I[12] = I[13] = I[14] = 0;
I[15] = 1;
}
}
return true;
}
Finally calculate the deflection of current earphone:
calculateOrientation() {
float[] values = new float[3];
float[] R = new float[9];
Specifically, angle matrix array R and inclination angle matrix I is obtained by earth magnetism numerical value and acceleration value first:
getRotationMatrix
boolean getRotationMatrix (float[] R,
float[] I,
float[] gravity,
float[] geomagnetic)
The vectorial coordinate system of the earphone is defined as a direct orthogonalization base, wherein X is defined as in world coordinate system
Vector product Y.Z, it, which refers to, is tangential on ground in the current location of earphone and is directed toward east；Y refers to tangent in the current location of earphone
It is directed toward in ground and towards magnetic north pole；Z, which refers to, to point into the sky and perpendicular to ground.
According to definition: [0 0 G]=R * gravity (G=gravity size)；[0 M 0]=I * R * earth magnetism (M=ground
The size of signal magnetic field)；R be unit matrix when, when equipment X-axis point eastwards, Y-axis be directed toward the arctic, Z axis against sky equipment with
World coordinate system alignment, that is to say, that I is that magnetic carrier introduces the identical coordinate space of gravity (world's seat to spin matrix in conversion
Mark space)；The tilt angle of radian can be calculated with getInclination and (be floated []).
It is 3 × 3 or 4 × 4 row principal matrixs that each matrix return, which may be length:
If array length is 16:
/ M [0] M [1] M [2] M [3] \ | M [4] M [5] M [6] M [7] | | M
[8] M [9] M [10] M [11] | M [12] M [13] M [14] M [15]/this matrix be
The glLoadMatrixf for the OpenGL ES being ready to pass through (is floated [], INT) using calculating.
It should be noted that the matrix because based on the rectangular array of OpenGL, it is necessary to transposed matrix before the use.So
And since the matrix is spin matrix, its transposition is also the inverse of it, and for convenience of calculating, need to rotate for rendering is inverse；Cause
OpenGL ES can be directly used in this.
It is also noted that the matrix returned may be following this form:
/ M [0] M [1] M [2] 0 \ | M [4] M [5] M [6] 0 | | M [8] M [9] M
[10] 0 | \ 0 0 0 1 /
If array length is 9:
/ M [0] M [1] M [2] \ | M [3] M [4] M [5] | \ M [6] M [7] M [8]
/ each inverse of a matrix can be calculated easily by taking its transposition.
SensorManager.getRotationMatrix(R, null, accelerometerValues,
magneticFieldValues);
By above-mentioned code, the direction of current earphone is calculated based on spin matrix；
SensorManager.getOrientation(R, values);
The approximate angle that conversion from radian to angle is measured using degree；
values[0] = (float) Math.toDegrees(values[0]);
Log.i(TAG, values[0] + "");
Pass through the positive and negative angle-data of above-mentioned Code obtaining current earphone；
if (values[0] >0) {
Earphone angle is positive value at this time, indicates to wear correctly, control module sends low level to variable connector, without cutting
Change left and right sound passage；
} else if (values[0] <0) {
Earphone angle is negative value at this time, indicates that wearing earphone is reversed, and control module sends high level to variable connector, switching
Left and right sound passage.
}
}
In the step S120, output high level or low level are judged according to the angle-data, when output high level
When, control variable connector carries out the switching of left and right acoustic channels；When exporting low level, then without the hand-off process of left and right acoustic channels.
Specifically, when the angle-data of current earphone is greater than 0 °, high level is exported, control variable connector carries out cutting for left and right acoustic channels
It changes；When the angle-data of current earphone is less than 0 °, low level is exported, then without the hand-off process of left and right acoustic channels.
Further, before step S100 of the present invention further include:
S10, after earphone is inserted into intelligent terminal, to control module, direction sensor and power supervisor carry out just
Beginningization processing；
S20, the control module real-time monitoring MIC foot voltage and according to monitoring result switch microphone flow pattern, when
When monitoring that the MIC foot voltage is 1.8V, the microphone access switches to charge mode and powers to earphone；When monitoring
State MIC foot voltage be 2.5V when, the microphone access switches to access control model and controls variable connector.
Specifically, as shown in Fig. 2, the earphone 1 in the present invention includes control module 2, power supervisor 3, direction sensor
4, variable connector 5, left and right earplug 6, the direction sensor 4 are attached by I2C bus with control module 2, the control
Module 2 is also connect with power supervisor 3 and variable connector 4 respectively, the variable connector 4 by two electric wires respectively with left and right
Earplug 6 connects.
Further, the control module refers to the MCU of a low-power consumption, and effect includes: for adjusting music letter
Number call with the good volume of audio；Access control model is switched to for controlling microphone access from charge mode；It is used to
Control the hardware initialization of other units on earphone.
Further, the power supervisor is mainly used to be powered management to the modules in earphone, including gives
Management is switched over to Mike's foot voltage when the charging of headset batteries module and call.
Specifically, after earphone 2 is inserted into intelligent terminal 7, direction sensor 4 is initialized, and starts to capture current
The three-dimensional coordinate data of earphone, the control module 2 according to the three-dimensional coordinate data is analyzed and determined whether input it is high,
Low level, to control the switching that variable connector 5 carries out left and right acoustic channels.
Based on the above method, the present invention also provides the systems normally exported based on earphone realization left and right sound, as shown in figure 3,
Comprising:
Coordinate data obtains uploading module 100, for after earphone is inserted into intelligent terminal, by being arranged on earphone
Direction sensor obtains the coordinate data of current earphone in real time, and the coordinate data is uploaded to control module；
Parsing module 110 parses for the coordinate data of the control module to acquisition, obtains current earphone
Angle-data；
Track switching module 120, for judging output high level or low level according to the angle-data, when the high electricity of output
Usually, control variable connector carries out the switching of left and right acoustic channels；When exporting low level, then without the switching of left and right acoustic channels at
Reason.
The system for realizing that left and right sound is normally exported based on earphone, wherein further include:
Initialization module 10, for after earphone is inserted into intelligent terminal, to control module, direction sensor and power supply
Manager carries out initialization process；
Power supervisor switching module 20, for the control module real-time monitoring MIC foot voltage and according to monitoring result
Switch mode, when monitoring the MIC foot voltage is 1.8V, the power supervisor switches to charge mode and supplies to earphone
Electricity；When monitor the MIC foot voltage be 2.5V when, the power supervisor switch to access control model to variable connector into
Row control.
It is described that the sound system that normally exports in left and right is realized based on earphone, wherein the track switching module 120 includes:
High level output unit 121 controls more for exporting high level when the angle-data of current earphone is greater than X °
The switching of way switch progress left and right acoustic channels；
Low level output unit 122, for when the angle-data of current earphone be less than Y ° when, export low level, then not into
The hand-off process of row left and right acoustic channels.
In conclusion exactly left ear can hear a left side when listened to music using earphone or sound field is best when voice when
Channel sound, auris dextra piece can hear the sound of right channel, and the present invention is carried out by the coordinate data obtained to direction sensor
Parsing obtains the angle-data of current earphone, judges whether earphone is worn instead, then when being according to the angle-data of current earphone
High level is exported, control variable connector carries out the switching of left and right acoustic channels, makes user regardless of whether wearing anti-earphone, can accurately listen
To the sound of left and right acoustic channels, splendid audio experience is brought to user.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (6)
1. a kind of method for realizing that left and right sound is normally exported based on earphone, which is characterized in that comprising steps of
A, after earphone is inserted into intelligent terminal, the seat of current earphone is obtained in real time by the direction sensor being arranged on earphone
Data are marked, and the coordinate data is uploaded to control module,
The current earphone coordinate data got is a three-dimensional coordinate；
B, the control module parses the coordinate data of acquisition, obtains the angle-data of current earphone；
In the step B, parsing is carried out to the coordinate data of acquisition and is comprised the following steps that
B1, deflection matrix array is obtained by algorithm；
B2, the ground magnetic vector for calculating oblique projection matrix；
B3, the deflection for calculating current earphone；
C, output high level or low level are judged according to the angle-data, when exporting high level, control variable connector is carried out
The switching of left and right acoustic channels；When exporting low level, then without the hand-off process of left and right acoustic channels.
2. the method normally exported based on earphone realization left and right sound according to claim 1, which is characterized in that the step A
Before further include:
A00, after earphone is inserted into intelligent terminal, control module, direction sensor and power supervisor are initialized
Processing；
A01, the control module real-time monitoring MIC foot voltage and according to monitoring result switch mode, when monitoring the MIC foot
When voltage is 1.8V, the power supervisor switches to charge mode and powers to earphone；When monitoring that the MIC foot voltage is
When 2.5V, the power supervisor switches to access control model and controls variable connector.
3. the method normally exported based on earphone realization left and right sound according to claim 1, which is characterized in that the step C
It specifically includes:
C1, when the angle-data of current earphone is greater than X °, export high level, control variable connector carries out left and right acoustic channels and cuts
It changes；
C2, when the angle-data of current earphone be less than Y ° when, export low level, then without the hand-off process of left and right acoustic channels.
4. a kind of system for realizing that left and right sound is normally exported based on earphone characterized by comprising
Coordinate data obtains uploading module, for being passed after earphone is inserted into intelligent terminal by the direction being arranged on earphone
Sensor obtains the coordinate data of current earphone in real time, and the coordinate data is uploaded to control module, it is described get work as
Preceding earphone coordinate data is a three-dimensional coordinate；
Parsing module parses for the coordinate data of the control module to acquisition, obtains the angle of current earphone
Data；
Track switching module, for judging output high level or low level according to the angle-data, when exporting high level, control
Variable connector processed carries out the switching of left and right acoustic channels；When exporting low level, then without the hand-off process of left and right acoustic channels；
Carrying out parsing to the coordinate data of acquisition in the parsing module includes: obtaining deflection matrix function by algorithm
Group；Calculate the ground magnetic vector of oblique projection matrix；Calculate the deflection of current earphone.
5. the system according to claim 4 for realizing that left and right sound is normally exported based on earphone, which is characterized in that further include:
Initialization module, for after earphone is inserted into intelligent terminal, to control module, direction sensor and power supervisor
Carry out initialization process；
Power supervisor switching module switches mould for the control module real-time monitoring MIC foot voltage and according to monitoring result
Formula, when monitoring the MIC foot voltage is 1.8V, the power supervisor switches to charge mode and powers to earphone；Work as prison
Measure the MIC foot voltage be 2.5V when, the power supervisor switches to access control model and controls variable connector.
6. the system according to claim 4 for realizing that left and right sound is normally exported based on earphone, which is characterized in that the sound channel
Switching module includes:
High level output unit, for when the angle-data of current earphone be greater than X ° when, export high level, control variable connector into
The switching of row left and right acoustic channels；
Low level output unit, for exporting low level, then without left and right sound when the angle-data of current earphone is less than Y °
The hand-off process in road.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106254993B (en) * | 2016-09-27 | 2019-09-10 | 依偎科技（南昌）有限公司 | A kind of earphone left and right acoustic channels self-adaptation control method and device |
| CN106454684A (en) * | 2016-10-18 | 2017-02-22 | 北京小米移动软件有限公司 | Multimedia playing control method and device |
| CN109391864B (en) * | 2017-08-07 | 2019-12-17 | 富港电子(昆山)有限公司 | Earphone and sound channel control method thereof |
| WO2019084857A1 (en) * | 2017-11-01 | 2019-05-09 | 深圳市汇顶科技股份有限公司 | Control device for earphone and wired earphone |
| CN113411702B (en) * | 2020-03-16 | 2024-05-14 | 维沃移动通信有限公司 | Sound channel configuration method and electronic equipment |
| CN112261536B (en) * | 2020-10-20 | 2023-08-04 | 深圳市凯狮博电子有限公司 | Earphone control method, earphone control device, terminal equipment and storage medium |
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| CN104754490A (en) * | 2013-12-31 | 2015-07-01 | 环达电脑(上海)有限公司 | Automatic left and right channel switching device and method |
| CN105282642A (en) * | 2014-07-24 | 2016-01-27 | 宏碁股份有限公司 | Headphone and sound channel control method thereof |
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| CN104754490A (en) * | 2013-12-31 | 2015-07-01 | 环达电脑(上海)有限公司 | Automatic left and right channel switching device and method |
| CN104066028A (en) * | 2014-06-19 | 2014-09-24 | 深圳市中兴移动通信有限公司 | Communication method based on headset jack and terminal device |
| CN105282642A (en) * | 2014-07-24 | 2016-01-27 | 宏碁股份有限公司 | Headphone and sound channel control method thereof |
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