CN112449269A - Earphone and tone quality optimization method thereof - Google Patents
Earphone and tone quality optimization method thereof Download PDFInfo
- Publication number
- CN112449269A CN112449269A CN202011091745.5A CN202011091745A CN112449269A CN 112449269 A CN112449269 A CN 112449269A CN 202011091745 A CN202011091745 A CN 202011091745A CN 112449269 A CN112449269 A CN 112449269A
- Authority
- CN
- China
- Prior art keywords
- sound pressure
- earphone
- pressure leakage
- degree
- leakage degree
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000005457 optimization Methods 0.000 title claims abstract description 24
- 230000000875 corresponding effect Effects 0.000 claims description 50
- 238000001514 detection method Methods 0.000 claims description 29
- 230000002596 correlated effect Effects 0.000 claims description 5
- 210000000613 ear canal Anatomy 0.000 claims description 4
- 210000005069 ears Anatomy 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 4
- 101150042817 NFS1 gene Proteins 0.000 description 3
- 101100126298 Rickettsia conorii (strain ATCC VR-613 / Malish 7) iscS gene Proteins 0.000 description 3
- 101150114492 SPL1 gene Proteins 0.000 description 3
- 101150056353 SPL2 gene Proteins 0.000 description 3
- 101150090744 SPL3 gene Proteins 0.000 description 3
- 101150031993 SPL4 gene Proteins 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention relates to the technical field of loudspeaker equipment, and discloses an earphone and a tone quality optimization method thereof. The optimization method comprises the following steps: judging whether the sound pressure leakage degree between the earphone and the human ear is within a preset sound pressure leakage degree interval or not; if so, determining an equalization regulation curve, wherein the equalization regulation curve has a sound pressure leakage degree matched with the gain value of each frequency point in a preset frequency band; and carrying out balance adjustment on the audio output by the earphone by using the balance adjustment curve. Through the mode, the sound quality of the earphone can be optimized according to the condition of sound pressure leakage.
Description
Technical Field
The invention relates to the technical field of loudspeaker equipment, in particular to an earphone and a tone quality optimization method thereof.
Background
With the development of audio digital technology, the use of speaker devices such as earphones is becoming more and more common. Due to the difference of the ear shapes of each person, the wearing tightness degree of the same earphone worn by different users can be different, sound pressure leakage of different degrees can be caused, and the obtained sound quality is different. In addition, incorrect wearing may also result in sound pressure leakage, which may degrade the sound quality perceived subjectively by the user.
However, earphones on the market at present cannot optimize the sound quality of the earphones for the case of sound pressure leakage.
Disclosure of Invention
In view of this, the present invention provides an earphone and a method for optimizing sound quality thereof, which can optimize the sound quality of the earphone for the situation of sound pressure leakage.
In order to solve the technical problems, the invention adopts a technical scheme that: a method for optimizing the sound quality of an earphone is provided. The optimization method comprises the following steps: judging whether the sound pressure leakage degree between the earphone and the human ear is within a preset sound pressure leakage degree interval or not; if so, determining an equalization regulation curve, wherein the equalization regulation curve has a sound pressure leakage degree matched with the gain value of each frequency point in a preset frequency band; and carrying out balance adjustment on the audio output by the earphone by using the balance adjustment curve.
In an embodiment of the present invention, the optimization method further includes: presetting a plurality of different target sound pressure leakage degrees; presetting a plurality of balance adjusting curves corresponding to the target sound pressure leakage degrees one by one; the step of determining an equalization adjustment curve includes: comparing the sound pressure leakage degree with a plurality of target sound pressure leakage degrees, and determining the target sound pressure leakage degree closest to the sound pressure leakage degree; the step of carrying out equalization adjustment on the audio output by the earphone by using the equalization adjustment curve comprises the following steps: and acquiring a balance adjustment curve corresponding to the closest target sound pressure leakage degree, and carrying out balance adjustment on the audio output by the earphone.
In an embodiment of the present invention, the gain value of each frequency point of each equalization adjustment curve in the preset frequency band is positively correlated to the corresponding target sound pressure leakage degree.
In an embodiment of the present invention, the optimization method further includes: presetting target pressure values corresponding to the target sound pressure leakage degrees one by one; wherein, comparing the sound pressure leakage degree with a plurality of target sound pressure leakage degrees, and determining the target sound pressure leakage degree closest to the sound pressure leakage degree comprises: acquiring a pressure value between the earphone and the contact part of the human ear, wherein the pressure value corresponds to the corresponding sound pressure leakage degree; and comparing the pressure value with each target pressure value, determining a target pressure value closest to the pressure value, and determining the target sound pressure leakage degree corresponding to the closest target pressure value as the target sound pressure leakage degree closest to the sound pressure leakage degree.
In an embodiment of the present invention, the step of obtaining the pressure value between the earphone and the human ear contact part includes: and acquiring pressure values between the earphone and a plurality of contact parts of the human ear, wherein the minimum value of the pressure values is used for describing the sound pressure leakage degree.
In an embodiment of the present invention, the step of determining whether the sound pressure leakage degree between the earphone and the ear is within a preset sound pressure leakage degree interval includes: acquiring pressure values between the earphone and a plurality of contact parts of human ears; judging whether the minimum value of the pressure values is within a preset pressure value interval or not; if yes, the sound pressure leakage degree is judged to be in the sound pressure leakage degree interval.
In an embodiment of the present invention, if the minimum value is smaller than the lower limit of the interval of the pressure value interval, it indicates that the user does not wear the earphone; if the minimum value is larger than the interval upper limit of the pressure value interval, representing that the user correctly wears the earphone.
In an embodiment of the present invention, the step of determining whether the sound pressure leakage degree between the earphone and the human ear is within a preset sound pressure leakage degree interval includes: judging whether the earphone outputs audio; and if so, judging whether the sound pressure leakage degree between the earphone and the human ear is in the sound pressure leakage degree interval.
In order to solve the technical problem, the invention adopts another technical scheme that: an earphone is provided. The earphone comprises a processor, a loudspeaker and a sound pressure leakage detection device, wherein the processor is respectively coupled with the loudspeaker and the sound pressure leakage detection device; the sound pressure leakage detection device is used for acquiring the sound pressure leakage degree between the earphone and the human ear; the processor is used for judging whether the sound pressure leakage degree is within a preset sound pressure leakage degree interval or not, determining a balance adjustment curve according to a judgment result, and carrying out balance adjustment on the audio output by the loudspeaker according to the corresponding balance adjustment curve; and the gain value of each frequency point of the equalization regulation curve in the preset frequency band is matched with the sound pressure leakage degree.
In an embodiment of the invention, the earphone comprises an ear-entering part, and the ear-entering part is embedded in the ear canal of the human ear after the user wears the earphone; wherein the sound pressure leakage detecting device is provided on the ear.
The invention has the beneficial effects that: the invention provides an earphone and a tone quality optimization method thereof. The optimization method judges whether serious sound pressure leakage exists after a user wears the earphone by judging whether the sound pressure leakage degree between the earphone and the human ear is within a preset sound pressure leakage degree interval; if so, the audio output by the earphone is subjected to balanced adjustment by using a corresponding balanced adjustment curve (the sound pressure leakage degree matched with the gain value of each frequency point of the balanced adjustment curve in the preset frequency band), so that the aim of optimizing the sound quality of the earphone is fulfilled, which means that the sound quality of the earphone can be optimized according to the sound pressure leakage condition.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. Moreover, the drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate it by those skilled in the art with reference to specific embodiments.
Fig. 1 is a schematic flow chart of an embodiment of a method for optimizing the sound quality of an earphone according to the present invention;
fig. 2 is a schematic structural diagram of an embodiment of the headset of the present invention;
FIG. 3 is a schematic structural diagram of an embodiment of the sound pressure leakage detection apparatus of the present invention;
fig. 4 is a schematic flow chart of another embodiment of the method for optimizing the sound quality of the earphone according to the present invention;
fig. 5 is a schematic diagram illustrating an embodiment of the relationship between the minimum value of the pressure values between the earphone and the plurality of contact portions of the human ear and the degree of sound pressure leakage according to the present invention;
FIG. 6 is a schematic diagram of an embodiment of the relationship between the leakage degree of the sound pressure and the target pressure value according to the present invention;
FIG. 7 is a graphical representation of one embodiment of a sound pressure level curve for different target sound pressure leakage levels in accordance with the present invention;
FIG. 8 is a schematic diagram of an embodiment of an equalization adjustment curve corresponding to different target sound pressure leakage levels according to the present invention;
fig. 9 is a schematic structural diagram of another embodiment of the headset of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Referring to fig. 1, fig. 1 is a schematic flow chart illustrating an embodiment of a method for optimizing sound quality of an earphone according to the present invention.
S101: and judging whether the sound pressure leakage degree between the earphone and the human ear is within a preset sound pressure leakage degree interval.
In this embodiment, after the user wears the earphone, the degree of sound pressure leakage between the earphone and the human ear may affect the subjective feeling of the user on the sound quality of the earphone, so this embodiment determines the degree of sound pressure leakage between the earphone and the human ear, specifically determines whether the degree of sound pressure leakage between the earphone and the human ear is within a preset range of sound pressure leakage degree, and determines whether the degree of sound pressure leakage between the earphone and the human ear is up to the degree that needs to be compensated.
S102: if so, determining an equalization adjustment curve.
In this embodiment, it is determined whether the sound pressure leakage degree between the earphone and the human ear is within a preset sound pressure leakage degree interval, and if the sound pressure leakage degree between the earphone and the human ear is within the sound pressure leakage degree interval, the sound pressure leakage degree described affects the subjective feeling of the user on the sound quality of the earphone, and the sound pressure leakage needs to be compensated.
Specifically, the present embodiment determines a matching equalization adjustment curve according to the degree of sound pressure leakage, so as to compensate for the sound pressure leakage. And the sound pressure leakage degree of the equalization regulation curve is matched with the gain value of each frequency point in the preset frequency band.
S103: and carrying out balance adjustment on the audio output by the earphone by using the balance adjustment curve.
In this embodiment, the determined equalization adjustment curve is used to perform equalization adjustment on the audio output by the earphone, so that the compensated sound pressure leakage affects the sound quality of the audio output by the earphone, and the purpose of optimizing the sound quality of the earphone is achieved. Moreover, due to the sound pressure leakage degree matched with the gain value of each frequency point of the equalization regulation curve in the preset frequency band, the sound quality of the audio output by the earphone can be compensated to (or close to) a normal level, so that the influence of the sound pressure leakage on the sound quality of the audio output by the earphone is reduced as much as possible.
As can be seen from the above, the optimization method of the embodiment determines whether relatively serious sound pressure leakage exists after the user wears the earphone by determining whether the sound pressure leakage degree between the earphone and the human ear is within a preset sound pressure leakage degree interval; if so, the audio output by the earphone is subjected to balanced adjustment by using a corresponding balanced adjustment curve (the sound pressure leakage degree matched with the gain value of each frequency point of the balanced adjustment curve in the preset frequency band), so that the aim of optimizing the sound quality of the earphone is fulfilled, which means that the sound quality of the earphone can be optimized according to the sound pressure leakage condition.
Referring to fig. 2 and 3, fig. 2 is a schematic structural diagram of an embodiment of an earphone according to the present invention, and fig. 3 is a schematic structural diagram of an embodiment of an acoustic pressure leakage detection apparatus according to the present invention.
In one embodiment, the headset has an ear-in portion 11 and a body portion 12. After the user wears the earphone, the in-ear part 11 is embedded in the ear canal of the human ear, and the body part 12 is located outside the ear canal of the human ear. The ear-in part 11 of the earphone is provided with a sound pressure leakage detection device 20 for detecting the degree of sound pressure leakage between the earphone and the human ear after the user wears the earphone, and further, the sound pressure leakage detection device is applied to optimizing the sound quality of the earphone aiming at the condition of sound pressure leakage.
For example, the pressure between the earphone and the human ear contact portion may be different due to factors such as incorrect wearing of the earphone by the user and improper configuration of the earphone to the configuration of the human ear of the user, and therefore the degree of sound pressure leakage between the earphone and the human ear may be reflected by the pressure value between the earphone and the human ear contact portion.
It will be appreciated that in the case where the user is wearing the earphone but not correctly and the user is wearing the earphone but the earphone configuration does not fit the user's ear configuration, the pressure value between the earphone and the human ear contact portion is inversely related to the degree of sound pressure leakage between the earphone and the human ear. Specifically, the larger the pressure value between the earphone and the human ear contact portion is, the smaller the degree of sound pressure leakage between the earphone and the human ear is, and vice versa.
In view of this, the sound pressure leakage detecting device 20 may be a pressure sensor, and the sound pressure leakage detecting device 20 may be disposed at a portion of the earphone, which is in contact with the human ear, and may be particularly disposed at the ear entrance portion 11 of the earphone, that is, by detecting a pressure value between the earphone and the human ear contact portion (a pressure value between the earphone and the human ear contact portion), a degree of sound pressure leakage between the earphone and the human ear is reflected.
Further, the sound pressure leakage detecting means 20 is plural in number, and the plural sound pressure leakage detecting means 20 are spaced apart from each other in the circumferential direction of the ear-entrance part 11, that is, by detecting pressure values between plural contact portions between the earphone and the human ear (pressure values of the plural contact portions between the earphone and the human ear), the degree of sound pressure leakage between the earphone and the human ear is reflected, so that the sound pressure leakage detecting means 20 can more accurately reflect the degree of sound pressure leakage between the earphone and the human ear.
Further, the plurality of sound pressure leakage detecting devices 20 are evenly spaced along the circumferential direction of the ear inlet portion 11.
The ear inlet 11 may be an earmuff part of an earphone, and fig. 2 shows a situation where the ear inlet 11 of the earphone is provided with 3 sound pressure leakage detecting means 20. Of course, in other embodiments of the present invention, the ear inlet 11 of the earphone may be provided with other numbers of sound pressure leakage detecting devices 20, which are not limited herein.
Fig. 3 shows the sound pressure leakage detection device 20 of the present embodiment, which is exemplified by a pressure sensor, wherein fig. 3a is a front view of the sound pressure leakage detection device 20, and fig. 3b is a side view of the sound pressure leakage detection device 20. And fig. 3 shows the sound pressure leakage detecting device 20 having a power terminal 21, a ground terminal 22, and a signal output terminal 23. The power end 21 is configured to be connected to a power supply, the ground end 22 is configured to realize grounding of the sound pressure leakage detection apparatus 20, and the signal output end 23 is configured to output an electrical signal corresponding to a pressure value measured by the sound pressure leakage detection apparatus 20. For example, the width of the body portion of the sound pressure leakage detection device 20 is 1.5mm, and the thickness of the sound pressure leakage detection device 20 is 0.3 mm. The earphone and the sound pressure leakage detection device 20 according to the embodiment of the present invention are merely exemplary, and are not limited thereto.
It should be noted that the following embodiments of the present invention are described by taking an example of reflecting the degree of sound pressure leakage between the earphone and the human ear by using the pressure value between the earphone and the human ear contact portion, and are directed to the case where the sound pressure leakage is caused by the user wearing the earphone but not wearing the earphone correctly, and the case where the sound pressure leakage is caused by the user wearing the earphone but not fitting the earphone structure to the human ear structure of the user, and the detection mode of the sound pressure leakage and the optimization mode of the sound quality of the earphone refer to the case where the sound pressure leakage is caused by the user wearing the earphone but not wearing the earphone correctly.
Referring to fig. 4, fig. 4 is a schematic flow chart of a method for optimizing sound quality of an earphone according to another embodiment of the present invention.
S201: and judging whether the earphone outputs audio.
In this embodiment, if the earphone outputs audio, step S202 is executed; if the earphone does not output audio, the process continues to step S201.
Considering that the user may not subjectively perceive the sound quality of the output audio of the earphone when the earphone outputs the audio, the embodiment may optimize the sound quality of the earphone for the case of sound pressure leakage when the earphone outputs the audio. In addition, the condition that the earphone outputs the audio may be that audio content such as music and broadcast is played through the earphone, which is not limited herein.
S202: and acquiring pressure values between the earphone and the contact part of the human ear, and judging whether the minimum value in the pressure values is larger than a first preset pressure value or not.
The wearing state of the earphone affects the pressure between the earphone and the contact part of the human ear, that is, the pressure value measured by the sound pressure leakage detection device in the above embodiment. Therefore, the present embodiment reflects the wearing state of the earphone by using the pressure condition between the earphone and the contact portion of the human ear.
The wearing state of the headset includes three situations that the user does not wear the headset, the user wears the headset correctly, and the user wears the headset but does not wear the headset correctly. The condition that the user correctly wears the earphone can be understood as that the user wears the earphone, the earphone keeps a correct posture in the human ear, the sealing degree between the earphone and the human ear is good at the moment, obvious sound pressure leakage does not exist between the earphone and the human ear, the wearing state of the earphone does not influence the tone quality of the output audio of the earphone at the moment, and therefore the tone quality of the output audio of the earphone does not need to be optimized. When the user does not wear the earphone, it is not necessary to optimize the sound quality of the audio output by the earphone.
And the condition that the user wears the earphone but does not correctly wear can be understood as that the user wears the earphone, but the earphone does not keep correct posture in the human ear, so can lead to the sealing degree between earphone and the human ear not good enough, and then lead to there being obvious acoustic pressure leakage between earphone and the human ear, will influence the tone quality of earphone output audio frequency, need optimize the tone quality of earphone output audio frequency this moment.
Specifically, a preset pressure value interval is preset, the lower limit of the preset pressure value interval is a first preset pressure value, and the upper limit of the interval is a second preset pressure value. Judging whether the minimum value in the pressure values is larger than a first preset pressure value or not, if so, representing that the user does not wear the earphone, so that the tone quality of the audio output by the earphone is not needed to be optimized, and ending the process; if the minimum value of the pressure values is greater than the first preset pressure value, step S203 is executed.
Further, for the case that the number of the sound pressure leakage detection devices in the above embodiment is multiple, the number of the pressure values between the earphone and the human ear contact portion obtained in this step is multiple, and the step of determining whether the minimum value of the pressure values is greater than the first preset pressure value specifically is to determine whether the minimum value of the pressure values is greater than the first preset pressure value: if the minimum value of the pressure values is smaller than a first preset pressure value, representing that the user does not wear the earphone; if the minimum value of the plurality of pressure values is greater than the first preset pressure value, step S203 is executed.
S203: and judging whether the minimum value of the pressure values is larger than a second preset pressure value or not.
In this embodiment, if the minimum value of the pressure values is greater than the second preset pressure value, it represents that the user correctly wears the earphone, and thus the process is ended; if the minimum value of the pressure values is smaller than the second preset pressure value, step S204 is executed.
If the minimum value in the pressure values is larger than the second preset pressure value, the representation user correctly wears the earphone, and the wearing state of the earphone does not influence the tone quality of the output audio of the earphone at the moment, so that the tone quality of the output audio of the earphone does not need to be optimized. And if the minimum value in the pressure values is smaller than a second preset pressure value, namely the minimum value in the pressure values is within a preset pressure value interval, representing that the user wears the earphone but does not wear the earphone correctly, and at the moment, optimizing the tone quality of the audio output by the earphone.
Similarly, for the case that the number of the sound pressure leakage detection devices in the above embodiment is multiple, the number of the pressure values is multiple, and the step of determining whether the minimum value of the pressure values is greater than the second preset pressure value specifically is to determine whether the minimum value of the pressure values is greater than the second preset pressure value: if the minimum value of the pressure values is larger than a second preset pressure value, representing that the user correctly wears the earphone; if the minimum value of the pressure values is smaller than a second preset pressure value, the minimum value of the pressure values is within a preset pressure value interval.
S204: and determining that the sound pressure leakage degree between the earphone and the human ear is within the sound pressure leakage degree interval.
In this embodiment, for the case that the number of the sound pressure leakage detection devices in the above embodiment is multiple, a minimum value of the multiple pressure values is greater than a first preset pressure value and smaller than a second preset pressure value, that is, the minimum value of the multiple pressure values is within a preset pressure value interval, it is indicated that a sound pressure leakage degree between the earphone and the human ear (that is, a current sound pressure leakage degree) is within a preset sound pressure leakage degree interval, it is considered that the user wears the earphone but does not wear the earphone correctly, there is significant sound pressure leakage between the earphone and the human ear, which will affect the sound quality of the audio output by the earphone, and the sound pressure leakage between the earphone and the human ear reaches a degree that needs to be compensated, that is, the sound quality of the audio output by the earphone needs to be optimized, so that the compensated sound pressure leakage affects the sound quality of the.
Of course, if the sound pressure leakage degree between the earphone and the human ear is outside the preset sound pressure leakage degree interval, the minimum value of the corresponding pressure values is smaller than the first preset pressure value and larger than the second preset pressure value, which indicates that the user does not wear the earphone or the user correctly wears the earphone, i.e., the sound quality of the audio output by the earphone is not required to be optimized.
Fig. 5 shows a relationship between the minimum value P among pressure values between the earphone and the human ear contact portion and the degree S of sound pressure leakage between the earphone and the human ear. Wherein, the segment a1 indicates that the user does not wear the earphone, and the minimum value P of the pressure values between the earphone and the human ear contact part is inversely related to the sound pressure leakage degree S between the earphone and the human ear; segment a2 indicates that the user wears the earphone but does not wear it correctly, and the minimum value P among the pressure values between the earphone and the human ear contact portion is inversely related to the sound pressure leakage degree S between the earphone and the human ear; the section a3 indicates that the user wears the earphone correctly, and the pressure value between the earphone and the human ear contact part does not have obvious influence on the sound pressure leakage degree between the earphone and the human ear.
Fig. 5 illustrates a linear relationship of the minimum value P among pressure values between the earphone and the human ear contact portion and the degree S of sound pressure leakage between the earphone and the human ear by way of example only, and the minimum value P among pressure values between the earphone and the human ear contact portion and the degree S of sound pressure leakage between the earphone and the human ear may have other linear relationships in other embodiments of the present invention.
S205: and comparing the sound pressure leakage degree between the earphone and the human ear with a plurality of target sound pressure leakage degrees, and determining the target sound pressure leakage degree closest to the sound pressure leakage degree.
In this embodiment, in the case that the number of the sound pressure leakage detection devices in the above embodiment is multiple, the minimum value of the multiple pressure values is within a preset pressure value interval, that is, the sound pressure leakage degree between the earphone and the human ear is within a preset sound pressure leakage degree interval, at this time, it is considered that the user wears the earphone but does not wear the earphone correctly, the sound pressure leakage between the earphone and the human ear reaches a degree that needs to be compensated, and the sound quality of the audio output by the earphone needs to be optimized.
Specifically, a plurality of different target sound pressure leakage degrees are preset, and a plurality of balance adjustment curves corresponding to the respective target sound pressure leakage degrees one to one are preset. In addition, target pressure values corresponding to the respective target sound pressure leakage degrees one to one are preset. It is understood that the target sound pressure leakage degree is positively correlated with the target pressure value, that is, the larger the target sound pressure leakage degree is, the larger the corresponding target pressure value is, and vice versa.
The step of comparing the sound pressure leakage degree with a plurality of target sound pressure leakage degrees and determining the target sound pressure leakage degree closest to the sound pressure leakage degree specifically comprises: acquiring a pressure value (which can be acquired by the sound pressure leakage detection device of the above embodiment) between the earphone and the human ear contact part, wherein the pressure value corresponds to a corresponding sound pressure leakage degree; and comparing the pressure value with target pressure values corresponding to the target sound pressure leakage degrees, and determining a target pressure value closest to the pressure value, specifically determining a target pressure value with the smallest difference value between the pressure values, wherein the target sound pressure leakage degree corresponding to the closest target pressure value is the target sound pressure leakage degree closest to the sound pressure leakage degree between the earphone and the human ear.
In this way, after the target sound pressure leakage degree closest to the sound pressure leakage degree between the earphone and the human ear is determined, the balance adjustment curve corresponding to the closest target sound pressure leakage degree can be used for compensating the influence of the sound pressure leakage between the earphone and the human ear on the sound quality of the earphone, the sound quality of the audio output by the earphone can be reasonably compensated and optimized, and the problems of excessive compensation and insufficient compensation degree can be avoided.
Further, for the case that the number of the sound pressure leakage detection devices in the embodiment is multiple, the step of acquiring the pressure value between the earphone and the human ear contact portion specifically includes: and acquiring pressure values between a plurality of contact positions of the earphone and the human ear, wherein the minimum value of the pressure values is used for describing the sound pressure leakage degree between the earphone and the human ear. Specifically, a target pressure value closest to the minimum value is determined, wherein the target sound pressure leakage degree corresponding to the closest target pressure value is the target sound pressure leakage degree closest to the sound pressure leakage degree between the earphone and the human ear.
Referring to fig. 6, fig. 6 exemplarily shows four preset target sound pressure leakage degrees of the present embodiment (i.e., a target sound pressure leakage degree S1, a target sound pressure leakage degree S2, a target sound pressure leakage degree S3, and a target sound pressure leakage degree S4) and target pressure values (i.e., a target pressure value P1, a target pressure value P2, a target pressure value P3, and a target pressure value P4) corresponding to the respective target sound pressure leakage degrees. It can be seen that the target sound pressure leakage degree S1 corresponds to the target pressure value P1, the target sound pressure leakage degree S2 corresponds to the target pressure value P2, the target sound pressure leakage degree S3 corresponds to the target pressure value P3, and the target sound pressure leakage degree S4 corresponds to the target pressure value P4. Fig. 6 shows that the target sound pressure leakage degree is positively correlated with the target pressure value, that is, the larger the target sound pressure leakage degree is, the larger the corresponding target pressure value is, and vice versa.
In this way, by comparing the minimum value among the pressure values at the plurality of contact points between the headphone and the human ear with the target pressure value P1, the target pressure value P2, the target pressure value P3, and the target pressure value P4, it is possible to determine the target pressure value closest to the minimum value, and further determine the target sound pressure leakage degree closest to the sound pressure leakage degree between the headphone and the human ear.
Of course, the linear relationship between the target sound pressure leakage degree and the target pressure value illustrated in fig. 6 is only an exemplary description, and the target sound pressure leakage degree and the target pressure value may have other linear relationships in other embodiments of the present invention.
S206: and acquiring a balance adjustment curve corresponding to the closest target sound pressure leakage degree, and carrying out balance adjustment on the audio output by the earphone.
In this embodiment, optimizing the sound quality of the audio output by the headset specifically means: and carrying out balance adjustment on the audio output by the earphone by using a balance adjustment curve corresponding to the target sound pressure leakage degree closest to the sound pressure leakage degree.
The principle of equalization adjustment, namely eq (equalizer), is to adjust the amplitude of the acoustic wave harmonic corresponding to a certain frequency point. The equalization adjustment curve based on equalization adjustment is a set of different frequency points and gain values corresponding to the different frequency points, and the gain values corresponding to the different frequency points are used for adjusting the amplitude of the sound wave harmonic of the frequency point.
The Sound Pressure Level (SPL) is a characteristic of the human ear in response to a change in the intensity of Sound, and is used to indicate the number of pairs of the Sound. The sound pressure level is defined as the base 10 logarithm of the ratio of a given sound pressure to a reference sound pressure multiplied by 20, the sound pressure level being measured in dB. Each frequency point of the audio output by the earphone has a corresponding sound pressure level, the sound pressure level is used for representing the sound size of each frequency point of the audio output by the earphone, and the set of each frequency point and the corresponding sound pressure level in the audio output by the earphone is defined as a sound pressure level curve. And when the user wears the earphone correctly or the structure of the earphone is matched with the structure of the ear of the user, no obvious sound pressure leakage exists between the earphone and the ear, the sound pressure level corresponding to each frequency point of the audio output by the earphone can reach a set value, and the sound pressure level curve of the audio output by the earphone is a target sound pressure curve at the moment, namely the target sound pressure curve is the sound pressure level curve of the audio output by the earphone under the state that the user wears the earphone correctly.
When a user does not correctly wear the earphone or the structure of the earphone is not matched with the structure of the human ear of the user, sound pressure leakage with different degrees can exist between the earphone and the human ear, and the pressure value between the earphone and the human ear contact part is shown in a preset pressure value interval, namely, the sound pressure leakage degree between the earphone and the human ear is shown in a preset sound pressure leakage degree interval, so that the sound pressure level corresponding to each frequency point of the audio output by the earphone cannot reach a set value, namely, the actual sound pressure level curve of the audio output by the earphone deviates from the target sound pressure level curve.
In view of the above, after determining a target sound pressure leakage level closest to the sound pressure leakage level between the earphone and the human ear, the closest target sound pressure leakage level corresponds to an equalization adjustment curve having a sound pressure leakage level matching the gain value of each frequency point within a preset frequency band. Therefore, the audio output by the earphone is subjected to balanced adjustment by using the balanced adjustment curve, and the sound pressure level curve of the audio output by the earphone can be adjusted to be close to the target sound pressure level curve.
Further, the gain value of each frequency point of each equalization adjustment curve in the preset frequency band is positively correlated with the corresponding target sound pressure leakage degree. The larger the target sound pressure leakage degree is, the larger the deviation between the sound pressure level corresponding to each frequency point of the audio output by the earphone and the set value is, namely, the larger the deviation between the actual sound pressure level curve of the audio output by the earphone and the target sound pressure level curve is, the larger the gain value of each frequency point of the equalization adjustment curve corresponding to the target sound pressure leakage degree in the preset frequency band is required to be, so that after the equalization adjustment curve is used for carrying out equalization adjustment on the audio output by the earphone, the actual sound pressure level curve of the audio output by the earphone can be adjusted to be close to the target sound pressure level curve, namely, the influence of sound pressure leakage on the tone quality of the audio output by the earphone is compensated.
Furthermore, sound pressure leakage mainly affects the tone quality performance of the low-frequency part of the audio output by the earphone, and obvious influence on the middle and high frequency bands of the audio output by the earphone is avoided, so that compensation and optimization of the tone quality of the middle and high frequency bands of the audio output by the earphone are not needed, and the tone quality optimization process is facilitated to be simplified. Therefore, the preset frequency band is preferably a low frequency band, and specifically may be a frequency band with a frequency of 250Hz or less.
Taking the four target sound pressure leakage levels shown in fig. 6 as an example, refer to fig. 7 together. In fig. 7, the sound pressure level curve SPL0 is a sound pressure level curve of the audio output by the headphone when the user correctly wears the headphone, i.e., the above-mentioned target sound pressure level curve; the sound pressure level curve SPL1 is a sound pressure level curve of the audio output by the headphone when the sound pressure leakage degree reaches the target sound pressure leakage degree S1; the sound pressure level curve SPL2 is a sound pressure level curve of the audio output by the headphone when the sound pressure leakage degree reaches the target sound pressure leakage degree S2; the sound pressure level curve SPL3 is a sound pressure level curve of the audio output by the headphone when the sound pressure leakage degree reaches the target sound pressure leakage degree S3; the sound pressure level curve SPL4 is a sound pressure level curve of the audio output from the headphone when the sound pressure leakage degree reaches the target sound pressure leakage degree S4.
Since the target sound pressure leakage degrees S1, S2, S3, and S4 sequentially increase, the sound pressure level curves SPL1, SPL2, SPL3, and SPL4 each sequentially increase the deviation between the sound pressure level at a frequency point within the preset frequency band and the sound pressure level at the same frequency point in the sound pressure level curve SPL0 (i.e., the target sound pressure level curve).
Referring to fig. 8, fig. 8 shows an equalization adjustment curve EQ1 corresponding to the target sound pressure leakage degree S1; the equalization adjustment curve EQ2 is an equalization adjustment curve corresponding to the target sound pressure leakage degree S2; the equalization adjustment curve EQ3 is an equalization adjustment curve corresponding to the target sound pressure leakage degree S3; the equalization adjustment curve EQ4 is an equalization adjustment curve corresponding to the target sound pressure leakage degree S4.
It can be seen that, because the sound pressure level curves SPL1, SPL2, SPL3, and SPL4 respectively have successively increasing deviations between the sound pressure levels of the frequency points within the preset frequency band and the sound pressure levels of the same frequency points within the sound pressure level curve SPL0, the gain values of the equalization adjustment curves EQ1, EQ2, EQ3, and EQ4 corresponding to the target sound pressure leakage degrees S1, S2, S3, and S4 at the frequency points within the preset frequency band are also successively increasing, so that after equalization adjustment, the sound pressure level curves corresponding to different target sound pressure leakage degrees can be adjusted to be close to the target sound pressure level curve, and further used for compensating the influence of the sound pressure leakage of different degrees on the sound quality of the audio output by the earphone.
Of course, in other embodiments of the present invention, the sound pressure leakage between the earphone and the human ear may also be caused by the mismatch of the shape and/or size of the earphone and the human ear, that is, the user wears the earphone correctly, but the shape and/or size of the earphone and the human ear is mismatched, which causes significant sound pressure leakage between the earphone and the human ear.
In summary, the method for optimizing the sound quality of the earphone provided by the present invention determines whether a relatively serious sound pressure leakage exists after the user wears the earphone by determining whether the sound pressure leakage degree between the earphone and the human ear is within a preset sound pressure leakage degree interval; if so, the audio output by the earphone is subjected to balanced adjustment by using a corresponding balanced adjustment curve (the sound pressure leakage degree matched with the gain value of each frequency point of the balanced adjustment curve in the preset frequency band), so that the aim of optimizing the sound quality of the earphone is fulfilled, which means that the sound quality of the earphone can be optimized according to the sound pressure leakage condition.
Referring to fig. 9, fig. 9 is a schematic structural diagram of another embodiment of the earphone according to the present invention.
In an embodiment, the earphone comprises a processor 30, a speaker 40 and a sound pressure leakage detection device 20, wherein the processor 30 is coupled to the speaker 40 and the sound pressure leakage detection device 20, respectively. The earphone may be an in-ear earphone or the like, and the sound pressure leakage detection device 20 may be a pressure sensor or the like as explained in the above embodiments, which is not limited herein.
The processor 30 of the present embodiment can implement the optimization method of the sound quality of the earphone explained in the above embodiments in cooperation with the speaker 40 and the sound pressure leakage detecting apparatus 20. Specifically, the sound pressure leakage detecting device 20 is configured to obtain a sound pressure leakage degree between the earphone and the human ear, and the processor 30 is configured to determine whether the sound pressure leakage degree between the earphone and the human ear is within a preset sound pressure leakage degree interval; and determining an equalization adjustment curve according to the determination result, and performing equalization adjustment on the audio output by the speaker 40 according to the corresponding equalization adjustment curve. And the sound pressure leakage degree of the equalization regulation curve is matched with the gain value of each frequency point in the preset frequency band.
Further, in the earphone shown in fig. 2, the sound pressure leakage detecting device 20 is disposed in the ear entrance portion 11 of the earphone, so that the sound pressure leakage detecting device 20 selected as the pressure sensor can contact with the human ear of the user, and further reflects the sound pressure leakage between the earphone and the human ear.
In addition, in the present invention, unless otherwise expressly specified or limited, the terms "connected," "stacked," and the like are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An optimization method for the sound quality of earphones is characterized by comprising the following steps:
judging whether the sound pressure leakage degree between the earphone and the human ear is within a preset sound pressure leakage degree interval or not;
if so, determining an equalization regulation curve, wherein the gain value of each frequency point of the equalization regulation curve in a preset frequency band is matched with the sound pressure leakage degree;
and carrying out balance adjustment on the audio output by the earphone by using the balance adjustment curve.
2. The optimization method according to claim 1, further comprising:
presetting a plurality of different target sound pressure leakage degrees;
presetting a plurality of balance adjusting curves corresponding to the target sound pressure leakage degrees one by one;
wherein the step of determining an equalization adjustment curve comprises:
comparing the sound pressure leakage degree with the target sound pressure leakage degrees, and determining the target sound pressure leakage degree closest to the sound pressure leakage degree;
wherein the step of performing equalization adjustment on the audio output by the earphone by using the equalization adjustment curve comprises the following steps:
and acquiring a balance adjustment curve corresponding to the closest target sound pressure leakage degree, and performing balance adjustment on the audio output by the earphone.
3. The optimization method according to claim 2, wherein the gain value of each frequency point of each equalization adjustment curve in the preset frequency band is positively correlated with the corresponding target sound pressure leakage degree.
4. The optimization method according to claim 2,
the optimization method further comprises the following steps:
presetting target pressure values corresponding to the target sound pressure leakage degrees one by one;
wherein the step of comparing the sound pressure leakage degree with the plurality of target sound pressure leakage degrees and determining the target sound pressure leakage degree closest to the sound pressure leakage degree comprises:
acquiring a pressure value between the earphone and a contact part of the human ear, wherein the pressure value corresponds to a corresponding sound pressure leakage degree;
comparing the pressure value with each target pressure value, and determining the target pressure value closest to the pressure value;
determining a target sound pressure leakage degree corresponding to the closest target pressure value as a target sound pressure leakage degree closest to the sound pressure leakage degree.
5. The optimization method according to claim 4, wherein the step of obtaining pressure values between the earphone and the human ear contact part comprises:
and acquiring pressure values between a plurality of contact positions of the earphone and the human ear, wherein the minimum value of the pressure values is used for describing the sound pressure leakage degree.
6. The optimization method according to claim 1,
the step of judging whether the sound pressure leakage degree between the earphone and the human ear is within a preset sound pressure leakage degree interval includes:
acquiring pressure values between the earphone and a plurality of contact parts of human ears;
judging whether the minimum value of the pressure values is within a preset pressure value interval or not;
and if so, determining that the sound pressure leakage degree is within the sound pressure leakage degree interval.
7. The optimization method according to claim 6, wherein if the minimum value is smaller than the lower limit of the interval of pressure values, it is characterized that the user does not wear the earphone; and if the minimum value is larger than the interval upper limit of the pressure value interval, representing that the user correctly wears the earphone.
8. The optimization method according to any one of claims 1 to 7, wherein the step of determining whether the degree of sound pressure leakage between the earphone and the human ear is within a preset sound pressure leakage degree interval comprises:
judging whether the earphone outputs audio or not;
and if so, judging whether the sound pressure leakage degree between the earphone and the human ear is in the sound pressure leakage degree interval.
9. An earphone, comprising a processor, a speaker and a sound pressure leakage detection device, wherein the processor is respectively coupled with the speaker and the sound pressure leakage detection device; wherein the content of the first and second substances,
the sound pressure leakage detection device is used for acquiring the sound pressure leakage degree between the earphone and the human ear;
the processor is used for judging whether the sound pressure leakage degree is within a preset sound pressure leakage degree interval or not, determining a balance adjustment curve according to a judgment result, and carrying out balance adjustment on the audio output by the loudspeaker according to the corresponding balance adjustment curve;
and the gain value of each frequency point of the balance adjustment curve in a preset frequency band is matched with the sound pressure leakage degree.
10. The earpiece of claim 9, wherein the earpiece includes an ear-entry portion that is inserted into an ear canal of a human ear after the earpiece is worn by a user; wherein the sound pressure leakage detecting means is provided on the ear inlet portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011091745.5A CN112449269B (en) | 2020-10-13 | 2020-10-13 | Earphone and tone quality optimization method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011091745.5A CN112449269B (en) | 2020-10-13 | 2020-10-13 | Earphone and tone quality optimization method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112449269A true CN112449269A (en) | 2021-03-05 |
| CN112449269B CN112449269B (en) | 2023-03-24 |
Family
ID=74736014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011091745.5A Active CN112449269B (en) | 2020-10-13 | 2020-10-13 | Earphone and tone quality optimization method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112449269B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005250389A (en) * | 2004-03-08 | 2005-09-15 | Fuji Xerox Co Ltd | Sound leakage preventive device and its method |
| US20080279411A1 (en) * | 2005-04-01 | 2008-11-13 | Matsushita Electric Industrial Co., Ltd. | Earpiece, Electronic Device and Communication Device |
| US20100246855A1 (en) * | 2009-03-31 | 2010-09-30 | Apple Inc. | Dynamic audio parameter adjustment using touch sensing |
| US20120321103A1 (en) * | 2011-06-16 | 2012-12-20 | Sony Ericsson Mobile Communications Ab | In-ear headphone |
| CN103269465A (en) * | 2013-05-22 | 2013-08-28 | 歌尔声学股份有限公司 | Headset communication method under loud-noise environment and headset |
| CN105163222A (en) * | 2015-10-09 | 2015-12-16 | 歌尔声学股份有限公司 | Earphone hearing adjusting method and earphone |
| CN105246000A (en) * | 2015-10-28 | 2016-01-13 | 维沃移动通信有限公司 | Method for improving sound quality of headset and mobile terminal |
| CN106105256A (en) * | 2014-03-14 | 2016-11-09 | 博士有限公司 | Pressure equilibrium in earphone |
| US20160330546A1 (en) * | 2015-05-06 | 2016-11-10 | Aliphcom | Headset with leakage detection |
| CN110418232A (en) * | 2019-07-10 | 2019-11-05 | Oppo广东移动通信有限公司 | A kind of volume adjusting method and device, computer readable storage medium |
| CN111669682A (en) * | 2020-05-29 | 2020-09-15 | 安克创新科技股份有限公司 | Method for optimizing sound quality of loudspeaker equipment |
-
2020
- 2020-10-13 CN CN202011091745.5A patent/CN112449269B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005250389A (en) * | 2004-03-08 | 2005-09-15 | Fuji Xerox Co Ltd | Sound leakage preventive device and its method |
| US20080279411A1 (en) * | 2005-04-01 | 2008-11-13 | Matsushita Electric Industrial Co., Ltd. | Earpiece, Electronic Device and Communication Device |
| US20100246855A1 (en) * | 2009-03-31 | 2010-09-30 | Apple Inc. | Dynamic audio parameter adjustment using touch sensing |
| US20120321103A1 (en) * | 2011-06-16 | 2012-12-20 | Sony Ericsson Mobile Communications Ab | In-ear headphone |
| CN103269465A (en) * | 2013-05-22 | 2013-08-28 | 歌尔声学股份有限公司 | Headset communication method under loud-noise environment and headset |
| CN106105256A (en) * | 2014-03-14 | 2016-11-09 | 博士有限公司 | Pressure equilibrium in earphone |
| US20160330546A1 (en) * | 2015-05-06 | 2016-11-10 | Aliphcom | Headset with leakage detection |
| CN105163222A (en) * | 2015-10-09 | 2015-12-16 | 歌尔声学股份有限公司 | Earphone hearing adjusting method and earphone |
| CN105246000A (en) * | 2015-10-28 | 2016-01-13 | 维沃移动通信有限公司 | Method for improving sound quality of headset and mobile terminal |
| CN110418232A (en) * | 2019-07-10 | 2019-11-05 | Oppo广东移动通信有限公司 | A kind of volume adjusting method and device, computer readable storage medium |
| CN111669682A (en) * | 2020-05-29 | 2020-09-15 | 安克创新科技股份有限公司 | Method for optimizing sound quality of loudspeaker equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112449269B (en) | 2023-03-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Aazh et al. | The accuracy of matching target insertion gains with open-fit hearing aids | |
| US20130266150A1 (en) | Active noise cancelling ear phone system | |
| US9154889B2 (en) | Hearing aid having level and frequency-dependent gain | |
| TWI626646B (en) | Audio system and audio control method | |
| US10932030B2 (en) | Headphones | |
| US20170366903A1 (en) | Transparent hearing aid and method for fitting same | |
| US20200125318A1 (en) | Sound Output Device and Sound Output Method | |
| CN112866864A (en) | Environment sound hearing method and device, computer equipment and earphone | |
| US20220076656A1 (en) | Robust open-ear ambient sound control with leakage detection | |
| CN112449269B (en) | Earphone and tone quality optimization method thereof | |
| US10045132B2 (en) | Method of fitting a hearing aid system, a hearing aid fitting system and a computerized device | |
| WO2021089987A1 (en) | Active noise cancelling system | |
| CN113613147B (en) | Hearing effect correction and adjustment method, device, equipment and medium of earphone | |
| US11070922B2 (en) | Method of operating a hearing aid system and a hearing aid system | |
| US8948429B2 (en) | Amplification of a speech signal in dependence on the input level | |
| US8170235B2 (en) | Hearing apparatus with unsymmetrical tone balance unit and corresponding control method | |
| US11733378B2 (en) | Detection system and detection method for in-ear earphone | |
| US11688383B2 (en) | Context aware compressor for headphone audio feedback path | |
| US20230136161A1 (en) | Apparatus and method for performing active occulsion cancellation with audio hear-through | |
| US20230396936A1 (en) | Hearing device with own-voice detection | |
| CN216057420U (en) | Earphone set | |
| CN113613139A (en) | Air pressure detection self-adaptive tuning earphone and control method thereof | |
| JP7131011B2 (en) | sound output device | |
| CN113473280A (en) | Earphone and wearing state detection method thereof | |
| CN114584904A (en) | Method and system for switching earphone sound channels and earphone terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |