KR20140103733A

KR20140103733A - Noise-cancelling apparatus using earphone for smart terminal and method thereof

Info

Publication number: KR20140103733A
Application number: KR1020130017551A
Authority: KR
Inventors: 김진우
Original assignee: 김진우
Priority date: 2013-02-19
Filing date: 2013-02-19
Publication date: 2014-08-27

Abstract

Disclosed are a noise cancelling apparatus using an earphone for a smart terminal and a method thereof. The noise cancelling apparatus includes: a smart terminal including a microphone for detecting surrounding noise, a decibel measuring unit for measuring the decibel (dB) of the detected noise, and a noise determining/cancelling unit for determining whether the measured decibel is 40 dB to 60 dB, and if the decibel is 40 dB to 60 dB, generating noise of 60 dB to 80 dB higher than the measured decibel by a predetermined decibel; and an earphone for outputting noise generated by the noise determining/cancelling unit. According to the noise cancelling apparatus using an earphone for a smart terminal and a method thereof, offensive surrounding noise can be reduced using softer low frequency sounds, by automatically recognizing surrounding noise to output low frequency noise of a higher decibel through the earphone. Further, conversations and noise can be distinguished by determining surrounding noise other than conversations when noise of a high decibel continues for a predetermined time or more as a method of determining noise. In addition, noise can be more actively cancelled by measuring the frequency of surrounding noise and generating noise having a waveform opposite to the frequency of the noise to output the generated noise to the earphone.

Description

TECHNICAL FIELD [0001] The present invention relates to a noise canceling apparatus and a noise canceling method using earphone for smart terminal,

The present invention relates to a noise canceling apparatus and method, and more particularly, to a noise canceling apparatus and method using an earphone for a smart terminal.

In modern urban life, it is always exposed to various types of noise. For example, if you are on a subway or a bus, you will always be exposed to the noise of your car while you are walking on the sidewalk.

If you are sensitive to noise, you can wear an earplug, but it will not be useful in places that are uncomfortable and noisy.

In addition, the noise generated by subway or bus sounds usually in the range of 40 to 60 dB, and this noise is continuously exposed to the ear.

To eliminate this constantly exposed noise, we use earphones to listen to music at high volume.

However, there is a problem that it can not be predicted when and where the noise will be exposed. You can not always listen to music to avoid being exposed to noise. It is only a temporary avoidance means.

On the other hand, this avoidance method can not determine whether the surrounding sound is noise or conversation of the other party. That is, there is a demand for a method of removing or preventing noise from surrounding sounds.

If you are able to communicate smoothly with your opponent even if you are exposed to loud noises, you can be convenient without hindering your daily life.

In addition to the avoidance methods such as listening to music, various measures are required to actively block or eliminate the noise.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a noise canceling device using an earphone for a smart terminal.

It is another object of the present invention to provide a noise canceling method using an earphone for a smart terminal.

According to another aspect of the present invention, there is provided a noise canceling apparatus using an earphone for a smart terminal, the microphone including a microphone for sensing ambient noise, a decibel measuring unit for measuring a decibel of the sensed noise, Noise that produces a predetermined low frequency noise of 60 dB to 80 dB which is a predetermined dB higher than the measured decibel when the decibel value is within 40 dB to 60 dB and is within 40 dB to 60 dB A smart terminal including a determination / removal unit; And an earphone for outputting noise generated in the noise determination / removal unit.

At this time, the noise determining / canceling unit may be configured to determine that surrounding noise is present if it is determined that the measured decibel is continuously within 40 dB to 60 dB for a predetermined second or more.

Meanwhile, the noise determining / canceling unit may be configured to manually change the decibel of the low-frequency noise in real time according to a user's input, or to automatically change a predetermined value by the user.

The noise determination / cancellation unit may be configured to recognize a plurality of frequencies constituting the noise sensed by the microphone, and to generate noise having opposite frequencies of the same frequency as the plurality of frequencies.

The smart terminal may be configured to operate the microphone, the decibel measurement unit, and the noise determination / removal unit when the earphone is detected to be connected to the smart terminal or the user has an input.

On the other hand, the earphone may be configured to have a home rubber member that releases air to lower the pressure in the ear when the user wears and reproduces the low-frequency noise.

Here, the noise determining / canceling unit may be configured to control the air release by using the hole rubber member when the decibel measured by the decibel measuring unit is 60 dB or more and 100 dB or less.

On the other hand, the earphone includes an operation button on the rear portion of the ear plug, and when the operation button is pressed once a predetermined number of seconds or less, the currently reproduced sound is temporarily stopped, And a control signal for performing a call attempt to a phone number of a recent calling party when the user clicks for more than a predetermined time, and inputs the control signal to the smart terminal.

At this time, the earphone includes at least one line-arresting ring member that is detachably attachable to the plastic engaging member coupled to the line at the point where both the ear lines of the earphone are separated by the coupling force of the iron and the magnet Respectively.

Here, the plastic coupling member may be configured such that the use of the operation button is written using pen ink that is erased on the outer surface.

The neodymium ring member comprises a plastic ring capable of holding the line and a neodymium magnet provided on the opposite side of the ring, and the neodymium magnet and the iron attached to the plastic joining member, The plastic coupling member may be detachably attached to the plastic coupling member by a coupling force of the plastic coupling member.

According to another aspect of the present invention, there is provided a method for removing noise using an earphone for a smart terminal, comprising: sensing a connection of an earphone to a smart terminal; Sensing the noise of the surroundings using a microphone when the smart terminal senses connection of the earphone; Measuring a decibel (dB) of the sensed noise by a decibel measurement unit of the smart terminal; Determining whether the measured noise level of the smart terminal is within a range of 40 dB to 60 dB; Generating a predetermined low frequency noise of 60 dB to 80 dB higher than the measured decibel by a predetermined dB higher than the measured decibel if the measured decibel is within the range of 40 dB to 60 dB; And outputting the noise generated by the earphone to the noise determination / removal unit.

The determining whether the measured noise level of the smart terminal is within the range of 40 dB to 60 dB may include determining whether the measured value of the measured noise level is within 40 dB to 60 dB continuously for a predetermined number of seconds or more May be configured to determine that ambient noise is present.

And the step of generating the noise of 60 dB to 80 dB, which is higher than the measured decibel by a predetermined dB higher than the measured decibel, if the measured decibel is within the range of 40 dB to 60 dB, The judging / canceling unit may be configured to grasp a plurality of frequencies constituting the noise sensed by the microphone, and to generate a noise composed of a plurality of frequencies and opposite waveforms of the same frequency respectively.

In addition, when the decibel measurement unit of the smart terminal measures the decibel (dB) of the sensed noise, if the measured decibel is not less than 60 dB and less than 100 dB, the noise determination / So that air pressure is reduced when the user wears the earphone.

According to the apparatus and method for removing noise using the earphone for a smart terminal, the noise of the surroundings is automatically recognized and a low-frequency noise of a higher decibel (dB) is output through the earphone, so that a soft low- So that it is possible to reduce the unpleasant noise around.

In addition, as a method of judging the noise, it is possible to distinguish between conversation and noise by making a determination that the noise is a peripheral noise rather than a conversation only when the noise of a high decibel lasts for a predetermined time (second) or more.

Another method is to measure the frequency of the surrounding noise, generate a noise having a waveform opposite to the frequency, and output the generated noise to the earphone so as to more positively remove the noise.

As another example, a hole member provided with a hole in an earphone may be mounted to allow air to be emitted through the hole during low-frequency noise reproduction, thereby reducing the pressure in the ear. At this time, there is an effect that external noise is temporarily heard by the swollen eardrum.

1 is a block diagram of a noise canceling apparatus using an earphone for a smart terminal according to an embodiment of the present invention.
FIGs. 2A and 2B are actual examples of earphones for a smart terminal having a hole rubber member and an operation button according to an embodiment of the present invention.
FIGS. 3A to 3D are physical examples of a line member and a plastic joining member according to an embodiment of the present invention.
4 is a flowchart illustrating a noise reduction method using an earphone for a smart terminal according to an exemplary embodiment of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail to the concrete inventive concept.

It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Like reference numerals are used for like elements in describing each drawing.

The terms first, second, A, B, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, .

On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a noise canceling apparatus using an earphone for a smart terminal according to an embodiment of the present invention.

1, a noise canceling apparatus 100 using a smartphone earphone according to an exemplary embodiment of the present invention includes a smart terminal 110 and an earphone 120 .

Here, the smart terminal 110 may be a device such as a smart phone or a smart pad, and the noise canceller 100 may be implemented as a predetermined application. The smart terminal 110 may be configured to include a microphone 111, a decibel measurement unit 112, and a noise determination / removal unit 113.

The earphone 120 may further include a hole rubber member 121, an operation button 122, a ring member 123 for aligning and a plastic engaging member 124.

The noise canceling apparatus 100 is configured to automatically recognize the ambient noise using the microphone 111 and measure the decibel. The noise canceling apparatus 100 generates a low frequency noise of decibel higher than the decibel of the noise, As shown in FIG. A high decibel prevents perceiving ambient noise, and low frequencies make your ears uncomfortable. At this time, the determination of the noise may be configured to determine that the noise is continuous only for a certain period of time. Noise is a problem if it continues continuously, and dialogue is often not continuous.

Meanwhile, as an active noise cancellation method, it is possible to measure a frequency of surrounding noise, generate noise having a waveform opposite to the frequency, and output it to the earphone 120 to directly remove the noise.

On the other hand, by reducing the pressure of the ear through the hole rubber member 121 of the earphone 120, it is possible to make the ear hole. The low frequency noise outputted from the earphone 120 leaks low frequency noise through the hole 121a of the hole rubber member 121 so that the ear pressure can be reduced. At this time, as the eardrum expands, the ears suddenly become dizzy. Therefore, it is configured to make it difficult to recognize the surrounding noise. There is an advantage in that the effect of temporarily excessively loud surrounding noise can be seen.

On the other hand, the earphone 120 can be configured to pause or replay the sound reproduced by using the operation button 122 provided on the outer surface of the ear piece portion, or to make a call attempt to the recent caller. You only need to touch your earplugs, which increases convenience.

On the other hand, the plastic engaging member 124 at the part where the double-stranded wire of the earphone is split can be configured to write the use instruction of the operation button 122 by using erased pen ink. The first time you use it, it is very useful to look at it, and it is configured to be cleared when you use it.

On the other hand, the plastic joining member 124 is structured so as to easily arrange the lines which are long and remain hanging by attaching the hooking ring members 123 thereto. The line-arresting ring member 123 is detachably attached to the plastic engaging member 124 by using a strong nadimium magnet so that it can be easily made as required.

Hereinafter, the detailed configuration will be described.

The microphone 111 may be configured to sense ambient noise. The microphone 111 is preferably configured to be always driven. However, it is more desirable to operate only when the earphone 120 is connected to the smart terminal 120. [

The decibel measurement unit 112 may be configured to measure the decibel (dB) of the noise sensed by the microphone 111. [

The noise determination / removal unit 113 may be configured to determine whether the decibel measured by the decibel measurement unit 112 is within 40 dB to 60 dB. Typical noise in everyday life is 30 dB to 60 dB.

The noise determination / removal unit 113 may be configured to produce a predetermined low frequency noise of 60 dB to 80 dB that is 20 dB higher than the measured decibel when the determination is 40 dB to 60 dB. Decibel noise higher than noise lowers perceived noise in the surroundings, and low-frequency noise produces a softer sound, which makes it easier for the user to hear.

At this time, the noise determination / removal unit 113 is configured to determine that surrounding noise is present when it is determined that the decibel measured by the decibel measurement unit 112 is continuously within 40 dB to 60 dB for a predetermined second or more . And the predetermined seconds may be changed to 5 seconds, 10 seconds, 20 seconds, and so on. The reason for determining noise as being continuous for a predetermined time is that the surrounding conversation is not continuously detected at a high decibel level. However, subway and bus sounds are often heard constantly.

Meanwhile, the noise determination / removal unit 113 may be configured to adjust the decibel of the low-frequency noise according to the input of the user. 20 dB, or the like, but it is desirable that the decibel adjustment is possible on the touch screen in real time. That is, it can be configured to manually set a predetermined dB in real time by the user. Or a predetermined dB preset by the user may be automatically set in real time.

On the other hand, as another method of noise reduction, the noise determination / removal section 113 grasps a plurality of frequencies constituting the noise sensed by the microphone 111, Gt; noise < / RTI > This is to cancel out the background noises positively by the noise of the opposite waveform. This can be a way to easily recognize the surrounding conversation.

The earphone 120 may be configured to output the noise generated by the noise determination / removal unit 113. [

Meanwhile, the earphone 120 may be configured to include a hole rubber member 121 for releasing air to lower the pressure in the ear when the wearer wears it. At this time, when the decibel measured by the noise determination / removal unit 113 is 60 dB or more and 100 dB or less, low frequency noise is emitted to the outside through the hole 121a of the hole rubber member 121 . This is a useful way to temporarily block noise when the ambient noise is too high, temporarily diminishing auditory perception by making the ears stand up.

When you climb a mountain or fly on a plane, atmospheric pressure is lowered, and the pressure inside the middle ear of the tympanic membrane is higher than the surrounding atmospheric pressure, causing the tympanic membrane to expand outward. At this time, the ears become dizzy. The ambient sound is not recognized properly. It can be very useful for extremely severe transient noises. Rather, you can protect your ears more than listen to the ambient noise without filtering.

The smart terminal 110 detects that the earphone 120 is connected to the smart terminal 110 or when the user inputs the microphone 111, the decibel measurement unit 112, and the noise determination / removal unit 113, Lt; / RTI > The earphone 120 is connected to the earphone 120 so that it can be seen that the earphone 120 is intended to remove / block the noise.

Further, the earphone 120 may further include a dynamic button 122 on the outer rear portion of the earplug. The operation button 122 is pressed for a predetermined time, for example, 1 second or less,

A control signal for temporarily stopping the currently played sound, playing back the paused sound by pressing twice continuously in the predetermined seconds or less, and performing a call attempt with the telephone number of the latest calling party when it is pressed for a predetermined time or more And input it to the smart terminal 110. Accordingly, the smart terminal 110 may be configured to perform the corresponding operation.

Usually, such an operation button is provided in the plastic coupling member 124, and it is provided at the ear piece portion of the earphone 120, so that it can be easily used without searching for the operation button.

The line-arresting ring member 123 is configured to hold the line and fix the line so that the line is not fixed. The line-breaking ring member 123 may be configured to be attached to the plastic engagement member 124.

The plastic coupling member 124 is configured to be coupled to a line at each separate point of the earphone 120. It is usually a volume key or an operation button.

The neodymium magnet 123b is connected to the plastic ring 123a through a plastic coupling member 123a and the plastic ring 123a is connected to the plastic ring 123a. The hook member 123 is configured to be detachably attached to the plastic engaging member 124. As shown in FIG.

On the other hand, the plastic engaging member 124 may be configured so that usage information for the operation button 122 is written using pen ink that is erased on a wide outer surface. This usage is useful only at the beginning of use, and is not necessary afterwards. It is also inconvenient to carry a separate paper manual. Therefore, it is useful to write the usage with the pen ink to be erased and to erase it by itself as it is used. The pen ink to be erased is disclosed in Korean Patent Application Publication No. 10-2009-0129729.

FIGs. 2A and 2B are actual examples of earphones for a smart terminal having a hole rubber member and an operation button according to an embodiment of the present invention.

Referring to FIG. 2A, it can be seen that the hole rubber member 121 is provided inside the earphone 120. Referring to FIG. 2B, the hole rubber member 121 is provided with a hole 121a. The hole rubber member 121 is curved so as to be embedded in the rim of the earphone 120, and is embedded in the earphone 120. The hole rubber member 121 can temporarily reduce the inner ear pressure by adjusting the amount of external emission of the low frequency noise according to the size of the hole 121a. In addition, when listening to music, a member (not shown) having no hole 121a can be attached to the earphone 120 and heard.

FIGS. 3A to 3D are physical examples of a line member and a plastic joining member according to an embodiment of the present invention.

Referring to FIG. 3A, the shape of the ring member for line cleaning 123 is shown. The ring member for line alignment 123 has a plastic ring 123a and a neodymium magnet 123b bonded to each other. The plastic ring 123a is configured so that an extra line is fitted and fixed so that the line can be moved or sagged. A neodymium magnet 123b having strong magnetic properties is attached to the opposite surface of the annular shape. The neodymium magnet 123b is configured to be magnetically coupled to the plastic coupling member 124.

Fig. 3b shows its resolved shape as plastic engaging member 124. Fig. The plastic coupling member 124 is generally provided at a portion where both ear lines of the earphone are split. 3B shows an embodiment in which a ring member for line cleaning 123 is attached to the plastic engaging member 124. FIG.

3C shows a coupling structure of the neodymium magnet 123b and the plastic coupling member 124. FIG. Since the plastic and the magnet can not have a bonding force with each other, the plastic coupling member 124 can be structured such that the iron 125 is attached in advance to various portions. The neodymium magnet 123b has a binding force with the iron 125 attached to the plastic coupling member 124 so that the ring member 123 for deflection can be detached from the plastic coupling member 124. [

Fig. 3D shows a state in which the operation description of the operation button 122 is written on the large surface of the plastic coupling member 124 with pen ink which is not erased. These pen inks are worn out as the user uses them. Since the user's manual of paper is inconvenient to store or carry, writing to the plastic coupling member 124 using the pen ink has an advantage that it can be easily learned how to use it.

4 is a flowchart illustrating a noise reduction method using an earphone for a smart terminal according to an exemplary embodiment of the present invention.

Referring to FIG. 4, the smart terminal 110 detects connection of the earphone 120 (S101).

Next, when the smart terminal 110 senses the connection of the earphone 120, it senses the surrounding noise using the microphone 111 (S102).

Next, the decibel measurement unit 112 of the smart terminal 110 measures the decibel (dB) of the noise sensed by the microphone 111 (S103).

Next, the noise determination / removal unit 113 of the smart terminal 110 determines whether the decibel measured by the decibel measurement unit 112 is within 40 dB to 60 dB (S103). It is also determined whether the decibel measured by the decibel measurement unit 112 is 60 dB to 80 dB (S105).

At this time, if it is determined that the measured decibel is continuously within 40 dB to 60 dB for a predetermined number of seconds or more, it can be configured to determine that ambient noise exists. The time of a predetermined second may be configured to be changed.

As a result of the determination, if the decibel is within 40 dB to 60 dB, the noise determination / removal unit 113 generates 60 dB to 80 dB of noise that is 20 dB higher than the previously measured decibel (S106). Then, the noise generated by the noise determination / removal unit 113 is output through the earphone 120 (S108).

At this time, the noise determination / elimination unit 113 is configured to grasp a plurality of frequencies constituting the noise detected by the microphone 111, and to generate noise having opposite waveforms of the same frequencies as the plurality of frequencies It is possible.

As a result of the determination, when the decibel is within the range of 60 dB to 100 dB, the noise determination / removal unit 113 emits a low frequency noise through the hole rubber member 121 provided in the earphone 120, The pressure in the ear is lowered (S108).

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the following claims. There will be.

110: smart terminal
111: microphone
112: decibel measurement unit
113: Noise judgment / rejection
120: earphone
121: a hole rubber member
122: Operation button
123: Linear ring member
123a: plastic ring
123b: neodymium magnet
124: plastic coupling member
125: Iron

Claims

A microphone for sensing ambient noise,
A decibel measurement unit for measuring a decibel (dB) of the sensed noise,
And determines whether the measured decibel is within 40 dB to 60 dB and generates a predetermined low frequency noise of 60 to 80 dB which is a predetermined dB higher than the measured decibel if it is within 40 dB to 60 dB A smart terminal including a noise determination / removal unit;
And an earphone for outputting the noise generated in the noise determination / removal,
The noise judgment /
If it is determined that the measured decibel is continuously within a range of 40 dB to 60 dB for a predetermined number of seconds or more,
The noise judgment /
Wherein the controller is configured to manually change the decibel of the low-frequency noise according to a user's input or automatically change a predetermined value by the user,
The noise judgment /
A plurality of frequencies constituting the noise detected by the microphone are detected and a noise composed of a plurality of frequencies and opposite waveforms of the same frequency are generated,
The smart terminal includes:
Wherein the microphone, the decibel measurement unit, and the noise determination / removal unit are configured to operate when the earphone is detected to be connected to the smart terminal or if there is an input from the user. .

The method according to claim 1,
The earphone includes:
And a home rubber member for releasing air to lower the pressure in the ear when the user wears and reproduces the low frequency noise,
The noise judgment /
Wherein when the decibel measured by the decibel measuring unit is 60 dB or more and 100 dB or less, air is discharged using the hole rubber member.

3. The earphone according to claim 2,
The operation button is provided on the rear portion of the earplug, and when the operation button is pressed once for a predetermined time or less, the currently reproduced sound is temporarily stopped, and when the operation button is pressed twice continuously for less than the predetermined seconds, And generates a control signal for performing a call attempt with a phone number of a recent caller when the user presses the call button for more than a predetermined time, and inputs the control signal to the smart terminal.

The method of claim 3,
The earphone includes:
And at least one or more line-arranging ring members configured to be detachably attached to the plastic engaging member coupled to the line at a point where both the ear lines of the earphone are separated by the coupling force between the iron and the magnet,
The plastic coupling member
The usage of the operation button is written using pen ink which is erased on the outer surface,
Wherein the line-arranging ring member comprises:
A plastic ring capable of holding and fixing the line and a neodymium magnet provided on the opposite surface of the ring, and being attached to and detached from the plastic coupling member by a coupling force between the neodymium magnet and the iron attached to the plastic coupling member Wherein the noise canceling device comprises:

Sensing a connection of the earphone to the smart terminal;
Sensing the noise of the surroundings using a microphone when the smart terminal senses connection of the earphone;
Measuring a decibel (dB) of the sensed noise by a decibel measurement unit of the smart terminal;
Determining whether the measured noise level of the smart terminal is within a range of 40 dB to 60 dB;
Generating a predetermined low frequency noise of 60 dB to 80 dB higher than the measured decibel by a predetermined dB higher than the measured decibel if the measured decibel is within the range of 40 dB to 60 dB;
Wherein the earphone outputs the noise generated in the noise determination / removal unit,
Wherein the step of determining whether the noise level of the smart terminal is within a range of 40 dB to 60 dB,
If it is determined that the measured decibel is continuously within a range of 40 dB to 60 dB for a predetermined number of seconds or more,
Wherein the step of generating the noise of 60 dB to 80 dB, which is higher than the measured decibel by a predetermined dB, when the measured decibel is within the range of 40 dB to 60 dB,
Wherein the noise determination / cancellation unit is configured to recognize a plurality of frequencies constituting the noise sensed by the microphone, and to generate a noise composed of opposite frequencies of the same frequencies as the plurality of frequencies, Noise removal method using earphone.

6. The method of claim 5,
When the decibel measurement unit of the smart terminal measures the decibel (dB) of the sensed noise to a measured decibel of 60 dB or more and 100 dB or less,
Wherein the noise judging / eliminating unit controls the release of air by using the hole rubber member provided in the earphone, thereby lowering the pressure in the ear when the earphone of the user wears the earphone.