KR20210035704A - Sound system using earbud device - Google Patents

Abstract

The present invention relates to a sound system, and more particularly, to a sound system using an earbud device that provides an acoustic and optical method corresponding to the psychological state of a user (wearer) by using an EEG sensor, an optical element and a speaker. A sound system using an earbud device according to the present invention includes a body part having an internal accommodating space; an ear tip mounted on a first side surface of the body part and having an acoustic path; a first optical element mounted on the first side surface of the body part; a light irradiator including a second optical element mounted on the acoustic path of the eartip; an EEG sensor including a pair of first and second electrodes spaced apart from each other and mounted on the side of the eartip to detect EEG; a speaker for emitting sound through the acoustic path; a communication unit for performing communication with an electronic communication device; and first and second earbud devices including a data processor that controls the light irradiator to perform a light irradiation function, transmits the detected value from the EEG sensor to an electronic communication device through the communication unit, receives a stereo sound signal of binaural beat sound data from the electronic communication device and emits sound through the speaker to perform a binaural beat sound reproduction function.

Description

Sound system using earbud device {SOUND SYSTEM USING EARBUD DEVICE}

The present invention relates to an acoustic system, and in particular, to an acoustic system using an earbud device that provides an acoustic and optical method corresponding to the psychological state of a user (wearer) using an EEG sensor, an optical element, and a speaker.

The wireless sound conversion device includes sound devices such as earphones, earbuds, and headsets, and performs sound reproduction, phone calls, etc., while performing communication with electronic devices (e.g., smartphones, tablets, etc.) through wireless communication. It is a device to do.

The conventional wireless sound conversion device has not provided a function for health maintenance or treatment other than the above sound reproduction or phone calls to the wearer.

An object of the present invention is to provide an acoustic system using an earbud device that provides an acoustic and optical method corresponding to the psychological state of a user (wearer) using an EEG sensor, an optical element, and a speaker.

The sound system using the earbud device of the present invention includes a body portion having an internal accommodation space formed therein, an ear tip mounted on a first side of the body portion and having an acoustic passage, a first optical element mounted on a first side of the body portion, An EEG sensor including a light irradiation unit including a second optical element mounted in the acoustic passage of the eartip, and a pair of first and second electrodes spaced apart from each other and mounted on the side of the eartip to detect EEG, and an acoustic passage. A speaker emitting sound through a speaker, a communication unit that communicates with an electronic communication device, and a light irradiation unit are controlled to perform a light irradiation function, and the detected value from the EEG sensor is transmitted to the electronic communication device through the communication unit, and the electronic communication device It includes first and second earbud devices including a data processor that receives a stereo sound signal of binaural beat sound data from and emits sound through a speaker to perform a binaural beat sound reproducing function.

In addition, the sound system includes a communication unit that communicates with at least one of the first and second earbud devices, and a light irradiation function and a binaural beat sound reproduction function by controlling the first and second earbud devices through the communication unit. It is preferable to include an electronic communication device having a data processor configured to perform at least one of.

In addition, the data processor of the electronic communication device receives the detected value through the communication unit, determines the user's mental state according to the received sensing value, and has a light irradiation function and a binaural beat sound reproduction function according to the determined mental state. It is desirable to perform the operation and stop operation.

In addition, the data processor of the electronic communication device receives the detected value through the communication unit, determines the user's mental state according to the received sensing value, reads the binaural beat sound data according to the determined mental state, and It is preferable to reproduce binaural beat sound data to generate a stereo sound signal, and transmit the generated stereo sound signal to at least one of the first and second earbuds to perform a binaural beat sound reproduction function.

In addition, the data processor of the electronic communication device receives the detected value through the communication unit, determines the user's mental state according to the received sensing value, determines light irradiation setting information according to the determined mental state, and sets the determined light irradiation. It is preferable to perform a light irradiation function by transmitting information and an operation command to at least one of the first and second earbud devices through the communication unit.

The present invention uses a detection value for an EEG from an EEG sensor that comes into contact with the user's skin when the user wears an earbud device, and a light irradiation function through an optical element according to the user's mental state corresponding to the detected value, By providing a binaural beat sound reproduction function, there is an effect of inducing the user's psychological stability or concentration.

1A and 1B are front and side perspective views of an earbud device according to the present invention.
2 is a block diagram of a sound system using an earbud device according to the present invention.

In the following, the present invention will be described in detail through examples and drawings. However, this is not intended to limit the present invention to a specific embodiment, it should be understood to include various modifications, equivalents, and/or alternatives of the embodiments of the present invention. In connection with the description of the drawings, similar reference numerals may be used for similar elements.

In this document, expressions such as "have", "may have", "include", or "may contain" are the presence of corresponding features (eg, elements such as numbers, functions, actions, or parts). And does not exclude the presence of additional features.

In this document, expressions such as "A or B", "at least one of A or/and B", or "one or more of A or/and B" may include all possible combinations of the items listed together. . For example, "A or B", "at least one of A and B", or "at least one of A or B" includes (1) at least one A, (2) at least one B, Or (3) it may refer to all cases including both at least one A and at least one B.

Expressions such as "first", "second", "first", or "second" used in this document can modify various elements, regardless of their order and/or importance, and It is used to distinguish it from the component, but does not limit the component. For example, a first user device and a second user device may represent different user devices regardless of order or importance. For example, without departing from the scope of the rights described in this document, a first component may be referred to as a second component, and similarly, a second component may be renamed to a first component.

Some component (eg, the first component) is “(functionally or communicatively) coupled with/to)” to another component (eg, the second component) or “ When referred to as "connected to", it should be understood that the certain component may be directly connected to the other component or may be connected through another component (eg, a third component). On the other hand, when a component (eg, a first component) is referred to as being “directly connected” or “directly connected” to another component (eg, a second component), the component and the It may be understood that no other component (eg, a third component) exists between the different components.

The expression "configured to" used in this document is, for example, "suitable for", "having the capacity to" depending on the situation. It can be used interchangeably with ", "designed to", "adapted to", "made to", or "capable of". The term "configured to (or set) to" may not necessarily mean only "specifically designed to" in terms of hardware. Instead, in some situations, the expression "a device configured to" may mean that the device "can" along with other devices or parts. For example, the phrase "a processor configured (or configured) to perform A, B, and C" means a dedicated processor (eg, an embedded processor) for performing the corresponding operation, or executing one or more software programs stored in a memory device. By doing so, it may mean a generic-purpose processor (eg, a CPU or an application processor) capable of performing corresponding operations.

Terms used in this document are only used to describe a specific embodiment, and may not be intended to limit the scope of other embodiments. Singular expressions may include plural expressions unless the context clearly indicates otherwise. Terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the technical field described in this document. Among the terms used in this document, terms defined in a general dictionary may be interpreted as having the same or similar meaning as the meaning in the context of the related technology, and unless explicitly defined in this document, they may be interpreted in an ideal or excessively formal meaning. It is not interpreted. In some cases, even terms defined in this document cannot be interpreted to exclude embodiments of this document.

In the present invention, the binaural beats are an auditory illusion recognized by the brain when two different frequencies are heard in each ear of a user, and the difference between the frequencies becomes a stimulus for EEG conversion. EEG according to the difference in frequency and its state are known as shown in Table 1 below.

Brain waves Frequency difference (Hz) User's psychological state (effect) Gamma wave More than 30 Excitement, anxiety, momentary awareness Beta wave 13~ 30 Stress, consciousness when awake Alpha wave 8~ 13 Meditation, strengthen concentration, relieve obsessive-compulsive disorder Theta wave 3~8 Drowsiness, meditation, anxiety reduction, creativity, shallow sleep Delta wave 0.5~3 Deep sleep, inner consciousness

As shown in Table 1, binaural beat characteristics are classified into gamma waves, beta waves, alpha waves, theta waves, and delta waves. Alpha waves improve concentration, and theta and delta waves are known to be effective in long-term memory.

In the present invention, reproducing a sound having binaural beat characteristics is referred to as a binaural beat sound reproducing function, and corresponds to an acoustic method provided by the present invention.

In the present invention, the binaural beat sound reproduction function using the binaural beat characteristic includes an operation mode that can be manually or automatically selected. Operation modes include, for example, concentration mode (reproducing sound with binaural beat characteristics of alpha wave), sleep mode (reproducing sound with theta wave at the beginning of sleep and binaural beat characteristic of delta wave in deep sleep), etc. Includes.

In addition, the optical method provided in the present invention is a method of irradiating infrared or near-infrared rays (light irradiation mode). In the present invention, by irradiating near-infrared rays to the inner ear (ear canal) and ear wheel (for example, the ear canal, etc.), mitochondrial CCO enzyme (Cytochrome C Oxidase) absorbs infrared rays to increase ATP production, thereby increasing the metabolism of cells. And it has the effect of enhancing energy, preventing cell regeneration and death, and stimulating vascular endothelial cells and red blood cells to increase nitric oxide (NO) production, thereby dilating blood vessels and increasing blood flow.

1A and 1B are front and side perspective views of an earbud device according to the present invention.

The earbud device 10 includes a main body 1 in which a control device such as a circuit board is mounted in an internal accommodation space, and an ear tip mounted on the first side of the main body 1 and having an acoustic passage 3a. 3), a first optical element 18a mounted on the first side of the main body 1, a second optical element 18b mounted on the acoustic passage 3a of the ear tip 3, and charging power. For this reason, a pair of charging electrodes 24 mounted on the first side of the main body 1, and a pair of first and second electrodes mounted spaced apart from each other on the side of the ear tip 3 to detect brain waves ( 26a, 26b), and the like.

The main body 1 is provided with a control device as shown in Fig. 2 in the receiving space formed inside the main body 1, and is worn on the outer ear when the user wears it, and the ear tip 3 is in the ear (for example, , It is inserted into the ear canal). The side opposite to the first side of the body 1 (a side symmetrical to the first side with respect to the body 1) faces the outside when the user inserts the earbud device 10 into the ear.

At least a portion of the first side of the main body 1 is in close proximity to or in contact with the ear wheel (for example, the tooth clasp), and is caused by light (for example, near-infrared) irradiated by the first optical element 18a. The effect can be achieved. In addition, the second optical element 18b irradiates light toward the front and outside of the ear tip 3 through the acoustic passage 3a, but performs light irradiation into the ear while the ear tip 3 is inserted into the ear canal. .

When the eartip 3 is inserted and seated in the ear, the first and second electrodes 26a and 26b are in contact with the skin (the ear canal) in the ear.

2 is a block diagram of a sound system using an earbud device according to the present invention.

The sound system is a pair of earbud devices 10a that perform wireless communication with the electronic communication device 30 and perform a sound reproduction function (including a binaural beat sound reproduction function), a phone call function, and a light irradiation function. , (10b), and at least one earbud device (10a), (10b) to perform wireless communication, and the earbud device (10) to perform a sound reproduction function, a phone call function and light irradiation function electronic communication It is configured to include the device 30 and the like.

The earbud devices 10a and 10b have the same mechanical configuration as the earbud device 10 in FIGS. 1A and 1.

The earbud device 10a obtains an input from a user (e.g., power on/off, light irradiation function on/off, wireless communication connection and termination, etc.) and applies it to the data processor 29a ( 11a), a display unit 13a that displays various information (eg, power status, whether a binaural beat sound reproduction function is performed, whether a light irradiation function is performed, etc.), and a data processor 29a by acquiring sound. ), a speaker 17a that emits sound through an acoustic passage 3a, and first and second optical elements 18a, 18b, and a microphone 15a applied to the data processor 29a. And a light irradiation unit 19a for performing light irradiation according to a control signal from the data processor 29a, and a communication unit 21a for performing wireless communication with the electronic communication device 30 and/or the earbud device 10b. , A power supply unit 23a that includes a pair of charging electrodes 24 and supplies power, and the first and second electrodes 26a and 26b, and detects a detection value related to brain waves to the data processor 29a. It is configured to include an EEG sensor 25a to be applied, a sound reproduction function by controlling the above-described components, a data processor 29a that performs a phone call function and a light irradiation function, and the like.

In addition, an input unit 11a, a display unit 13a, a microphone 15a, a speaker 17a, a light irradiation unit 19a, a communication unit 21a, a power supply unit 23a, an EEG sensor 25a, and a data processor 29 are provided. The included control device is mounted in the receiving space or sides within the body portion 1.

However, the input unit 11a, the display unit 13a, the microphone 15a, the speaker 17a, the communication unit 21a, and the power supply unit 23a are only technologies that are naturally recognized by those skilled in the art. , Detailed description thereof is omitted.

The light irradiation unit 19a is controlled by the data processor 29 and includes a plurality of first and second optical elements 18a and 18b for irradiating light in the visible and near-infrared bands in the range of 650 to 1,300 nm. It is configured by, for example, is configured to include LED elements.

The EEG sensor 25a corresponds to a sensor that senses an electroencephalogram (EEG), generates a detection value related to the detected EEG, and applies it to the data processor 29a.

As already known, the data processor 29a controls the microphone 15a, the speaker 17a, and the communication unit 21a to communicate with the electronic communication device 30 to perform a phone call function, and the speaker 17a and The communication unit 21a is controlled to communicate with the electronic communication device 30 to perform a sound reproduction function.

In this embodiment, the light irradiation function and the binaural beat sound reproduction function are described in detail.

In the case of the light irradiation function, the data processor 29a controls the light irradiation unit 19a to operate and stop the light irradiation. It can also be changed, and it controls the duration of light irradiation. In particular, in order to prevent excessive temperature rise, the data processor 29a controls the pulse width length and frequency of light, and the duration of light irradiation (light irradiation setting information). For example, each of the pulse width range (3ms-15ms), frequency (10-50Hz), and duration of light irradiation (up to 1 minute per time) can be controlled. In addition, the light irradiation setting information may include selection of the first and second optical devices 18a and 18b to perform light irradiation, which are light irradiation positions.

In addition, the data processor 29a may independently turn on and off each of the first and second optical elements 18a and 18b by controlling the light irradiation unit 19a using the light irradiation setting information.

In addition, as described above, the data processor 29a reads pre-stored light irradiation setting information independently of the electronic communication device 30 or without control of the electronic communication device 30 to irradiate light according to the light irradiation setting information. Although it is described to perform the function, it is described below that the light irradiation function is performed by the control of the electronic communication device 30.

Next, in the binaural beat sound reproduction function, the data processor 29a transmits the detection value sensed by the brainwave sensor 25a to the electronic communication device 30 through the communication unit 21a, and the electronic communication device ( It is operated by the control of 30), and will be described below in this regard.

The earbud device 10b has the same configuration as the earbud device 10a, but may be distinguished according to a communication control method. When each of the data processor 29a and the data processor 29b controls each of the communication units 21a and 21b to independently perform communication with the electronic communication device 30, the data processor 29a is connected to the communication unit 21a. ) To communicate with the electronic communication device 30, and the data processor 29b controls the communication unit 21b to perform communication with the communication unit 21a of the data processor 29a (earbud device 10a) A master device, the earbud device 10b may be implemented as a slave device that is communicatively connected to the earbud device 10a to function as a controlled slave device). The communication control method between the earbud devices 10a and 10b and the electronic communication device 30 corresponds to a technology that is naturally recognized by a person skilled in the art to which the present invention belongs, and a detailed description thereof is omitted. However, in the embodiment, the earbud device 100 is collectively referred to as the earbud devices 10a and 10b, and a communication method between them corresponds to any one of the above-described cases.

The electronic communication device 30 corresponds to, for example, an electronic device such as a smartphone or a tablet, and inputs from a user (e.g., operation and suspension of the light irradiation function, input and correction of light irradiation setting information) , Operation of the binaural beat sound reproducing function and stopping the operation, selection of automatic mode and manual mode, selection of operation mode, etc.) and applying it to the data processor 39, and the operation of the light irradiation function And a display unit 33 that visually and/or audibly displays the motion stop, light irradiation setting information, the motion and stop motion of the binaural beat sound reproduction function, the automatic mode and the manual mode, the mental state of the user, and the like, A communication unit 35 performing wireless communication with the wireless earbud device 10, a function of determining the user's mental state using a detection value related to brain waves, a phone call function, a sound reproduction function, and a light irradiation function as described above. It is configured to include a data processor 39 to perform. However, the power supply unit (not shown), the input unit 31, the display unit 33, and the communication unit 35 are merely technologies that are naturally recognized by those of ordinary skill in the art to which the present invention belongs, and detailed descriptions thereof are omitted.

The data processor 39 stores psychological reference data that can determine the user's psychological state corresponding to the detected value related to the brain wave, and reads the stored psychological reference data and uses the read psychological reference data to correspond to the detected value. Determine the user's psychological state. The user's psychological state includes, for example, an excited state, a stressful state, and the like.

In addition, the data processor 39 stores binaural bit sound data that can heal or alleviate the user's mental state, and the binaural bit sound data is the user's mental state or desired This corresponds to stereo sound data having a frequency difference according to the operation mode (eg, concentration, sleep mode, etc.). The operation mode includes the type of binaural bit (eg, delta wave, theta wave, alpha wave, etc.), operation time, and the like.

The data processor 39 generates a stereo sound signal by reproducing binaural beat sound data, and applies each of the generated stereo sound signals (left sound signal and right sound signal) to the earbud device 10 to obtain a binaural sound. Performs a beat sound reproduction function.

In the present invention, each function (telephone call function, sound reproduction function, light irradiation function) is performed in a communication connection state between the electronic communication device 30 and the earbud device 10. In addition, the data processor 29 periodically transmits the detected value from the EEG sensor 25 to the electronic communication device 30 through the communication unit 21.

In addition, the data processor 39 may perform a single mode in which only one of the above-described light irradiation function and a binaural beat sound reproduction function is performed, and a complex mode in which both functions are simultaneously performed.

In addition, the data processor 39 performs a single mode or a complex mode in accordance with an operation input or an operation stop input from the input unit 31, a manual mode, which determines the user's mental state, and determines the determined mental state. Depending on the case, it is possible to perform a single mode or an automatic mode performing a multiple mode.

First, the light irradiation function and the binaural beat sound reproduction function in the manual mode will be described.

In the light irradiation function in the manual mode, the data processor 39 acquires an operation input or an operation stop input of the light irradiation function from the input unit 31 and transmits the data to the earbud device 10 through the communication unit 35, and The processor 29 (29a and 29b collectively) receives an operation input or an operation stop input of the light irradiation function through the communication unit 21 (collectively referred to as 21a and 21b), and operates the light irradiation function according to the received input ( Operation command) or stop operation (operation stop command). In order to perform the light irradiation function, the data processor 39 may transmit the light irradiation setting information to the earbud device 10 by including the light irradiation setting information in the operation command of the light irradiation function.

In addition, the data processor 39 requests light irradiation setting information from the earbud device 10 in a communication connection state with the earbud device 10 through the communication unit 35, and the data processor 29 is the communication unit 21 ), in response to the request, the previously stored light irradiation setting information is read and transmitted to the electronic communication device 30. The data processor 39 receives the light irradiation setting information and displays it through the display unit 33 so that the user can check it. The data processor 39 obtains a correction input for the light irradiation setting information displayed through the input unit 31, and modifies and stores the light irradiation setting information. The data processor 39 transmits the modified light irradiation setting information to the earbud device 10 through the communication unit 35. The data processor 29 receives and stores the modified light irradiation setting information through the communication unit 21, and then performs a light irradiation function according to the modified light irradiation setting information.

Next, in the binaural beat sound reproduction function in the manual mode, the data processor 39 displays the operation mode on the display unit 33, and the operation mode selected by the user from the input unit 31 (e.g., intensive Mode or sleep mode, etc.)(including end of binaural beat, operating time, etc.) corresponding to binaural beat sound data is read, and the read binaural beat sound data is reproduced to generate a stereo sound signal Then, the generated stereo sound signal is transmitted to the earbud device 10 and performed.

Next, in the light irradiation function in the automatic mode, the data processor 39 determines the mental state of the user by receiving a detection value related to the brain wave from the earbud device 10. The data processor 39 determines light irradiation setting information (eg, irradiation time, light irradiation position, etc.) corresponding to the determined mental state, and transmits the determined light irradiation setting information and operation command to the earbud device 10. send. For example, when the determined mental state is a high stress state or an excited state, the data processor 39 transmits the operation command of the light irradiation function and the light irradiation setting information to the earbud device 10 through the communication unit 35. Transmission so that the light irradiation function is performed. In addition, during the execution of the light irradiation function, a detection value related to brain waves is received to determine the user's mental state, and when the determined mental state is a low stress state or a stable state, the light irradiation function is performed through the communication unit 35. An operation stop command may be transmitted to the earbud device 10 to terminate the light irradiation function.

Next, in the binaural beat sound reproducing function in the automatic mode, the data processor 39 receives a detection value related to brain waves from the earbud device 10 to determine the user's mental state. In addition, the data processor 39 reads binaural bit sound data having a binaural bit characteristic or an operation mode corresponding to the determined mental state, and reproduces the read sound data to generate stereo sound signals, and the communication unit ( Transmitted to the earbud device 10 through 35), stereo sound signals are applied from each of the earbud devices 10a and 10b to each of the speakers 17a and 17b so that stereo sound emission is performed.

In addition, while the binaural beat sound reproducing function is being performed in the automatic mode, the data processor 39 may terminate the running operation mode according to the user's mental state. For example, while the data processor 39 performs the concentrated mode, if it is confirmed that the stress EEG (beta, gamma) decreases in the detected value for the EEG, the concentrated mode may be terminated.

Next, when performing the complex mode, the data processor 39 may simultaneously or alternately perform a light irradiation function and a binaural beat sound reproduction function. The data processor 39 operates a binaural beat sound reproduction function according to a user's selection of an operation mode or a mental state while performing a light irradiation function.

At least a part of a device (eg, a processor or its functions) or a method (eg, operations) according to various embodiments may be stored in a computer-readable storage media in the form of, for example, a program module. It can be implemented as a stored command. When the command is executed by a processor, the one or more processors may perform a function corresponding to the command. The computer-readable storage medium may be, for example, a memory.

Computer-readable recording media include hard disks, floppy disks, magnetic media (e.g. magnetic tape), optical media (e.g. CD-ROM, DVD (Digital Versatile Disc), magnetic- It may include optical media (eg floptical disk), hardware devices (eg ROM, RAM, flash memory, etc.), etc. In addition, program instructions, such as those made by a compiler, may be included. It may include not only machine code but also high-level language code that can be executed by a computer using an interpreter, etc. The above-described hardware device may be configured to operate as one or more software modules to perform operations of various embodiments. The same goes for vice versa.

The processor or functions performed by the processor according to various embodiments of the present disclosure may include at least one or more of the above-described components, some of the above-described components may be omitted, or additional other components may be further included. Operations performed by modules, program modules, or other components according to various embodiments may be executed sequentially, in parallel, repetitively, or in a heuristic manner. In addition, some operations may be executed in a different order, omitted, or other operations may be added.

As described above, the present invention is not limited to the specific preferred embodiments described above, and anyone with ordinary knowledge in the technical field to which the present invention pertains without departing from the gist of the present invention claimed in the claims It goes without saying that modifications are possible, and such changes are within the scope of the description of the claims.

10a, 10b: earbud device 30: electronic communication device

Claims (5)

A body portion having an internal accommodation space formed therein;
An ear tip mounted on the first side of the body and having an acoustic passage;
A light irradiation unit including a first optical element mounted on a first side of the main body and a second optical element mounted on an acoustic path of the ear tip;
An EEG sensor including a pair of first and second electrodes mounted to be spaced apart from each other on side surfaces of the ear tips to detect EEG;
A speaker for emitting sound through an acoustic passage;
A communication unit for performing communication with an electronic communication device;
It controls the light irradiation unit to perform the light irradiation function, transmits the detected value from the EEG sensor to the electronic communication device through the communication unit, receives a stereo sound signal of binaural beat sound data from the electronic communication device, and makes sound through the speaker. A sound system using an earbud device, comprising: first and second earbud devices including a data processor that emits and performs a function of reproducing a binaural beat sound. The method of claim 1,
The sound system includes a communication unit performing communication with at least one of the first and second earbud devices, and at least one of a light irradiation function and a binaural beat sound reproduction function by controlling the first and second earbud devices through the communication unit. A sound system using an earbud device, comprising an electronic communication device having a data processor configured to perform one or more. The method of claim 2,
The data processor of the electronic communication device receives the sensing value through the communication unit, determines the user's mental state according to the received sensing value, and operates each of the light irradiation function and the binaural beat sound reproduction function according to the determined mental state. And a sound system using an earbud device, characterized in that the operation is stopped. The method of claim 2,
The data processor of the electronic communication device receives the detected value through the communication unit, determines the user's mental state according to the received sensing value, reads the binaural beat sound data according to the determined mental state, and reads the binary data. An earbud, characterized in that it performs a binaural beat sound reproducing function by reproducing the ral beat sound data to generate a stereo sound signal, and transmitting the generated stereo sound signal to at least one of the first and second earbuds Acoustic system using the device. The method of claim 2,
The data processor of the electronic communication device receives the detection value through the communication unit, determines the user's mental state according to the received detection value, determines light irradiation setting information according to the determined mental state, and determines the light irradiation setting information and A sound system using an earbud device, characterized in that the operation command is transmitted to at least one of the first and second earbud devices through a communication unit to perform a light irradiation function.

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