KR101402278B1 - Apparatus and method for playing multimedia file - Google Patents

Abstract

More particularly, the present invention relates to an apparatus and a method for repeatedly playing back a multimedia file preferred by a user by checking a degree of preference and a degree of non-preference for a predetermined multimedia file based on a user's emotional response index will be.

 An apparatus for reproducing a multimedia file according to an exemplary embodiment of the present invention includes an emotion response index calculating unit for calculating an emotion response index based on a user's body reaction signal, A preference / non-preference degree check unit for checking whether the user is preferring or not, and a list generation unit for generating a list of audio files preferred by the user based on the average of the emotion response index and the user's preference for the audio file And a reproduction management unit for controlling the reproduction of the audio file based on the preference and the degree of non-preference of the audio file and for reproducing the audio file corresponding to the list of the generated audio file.

Multimedia file, preference, emotion response index, repeat play

Description

[0001] APPARATUS AND METHOD FOR PLAYING MULTIMEDIA FILES [0002]

More particularly, the present invention relates to an apparatus and a method for repeatedly playing back a multimedia file preferred by a user by checking a degree of preference and a degree of non-preference for a predetermined multimedia file based on a user's emotional response index will be.

Recently, the use of portable multimedia file players that can play digitally encoded audio files has become common. That is, relatively small handheld devices capable of processing digitally encoded audio and video files stored on semiconductor memory devices have gained popularity. Here, the multimedia file player uses various fields such as an MP3 player, a PMP, and a mobile phone.

In addition, as the demand for higher data storage capacity in portable multimedia file players increases, next generation players including miniaturized high capacity hard drives have been developed and gaining popularity.

For example, when a user listens to music by using a portable multimedia file player and plays a favorite song, the user would like to listen to the song repeatedly. If a song that he dislikes is played, I want to do it. In this case, it is troublesome for the user to perform operations such as repetition and skipping according to his / her preference. In addition, when the song is to be repeated indefinitely, it is necessary to select the play button every time the song ends or to set an infinite repeat function for the song.

Korean Unexamined Patent Publication No. 2006-055357 (reproduction device for music contents, reproduction method for music contents, and recording device for music contents and attribute information thereof) Acquiring biometric information of a listener that listens for a sound reproduction output, acquiring biometric information of the obtained listener and the next reproduced music candidate on the basis of the attribute information acquired by the second acquiring means However, this does not refer to a technique of repeatedly reproducing and skipping a multimedia file on the basis of the user's preference and non-preference.

The technical problem of the present invention is to repeat the user's preferred multimedia file by checking the preference and non-preference of a predetermined multimedia file based on the user's emotional response index.

According to another aspect of the present invention, there is provided a method of reproducing multimedia files stored in a list of multimedia files having a high user preference when a multimedia file is requested to be reproduced by a user.

The technical objects of the present invention are not limited to the technical matters mentioned above, and other technical subjects not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided an apparatus for reproducing a multimedia file, the apparatus comprising: an emotion response index calculating unit for calculating an emotion response index based on a user's body reaction signal; A preference / non-preference checking unit for checking whether a user's preference and non-preference with respect to the audio file are checked based on the user's preference for the audio file, And a reproduction management unit for controlling the reproduction of the audio file based on the preference and the degree of non-preference of the audio file and for reproducing the audio file corresponding to the list of the generated audio file.

A method of reproducing a multimedia file according to an exemplary embodiment of the present invention includes generating a list of audio files preferred by a user based on an average of a user's emotional response index and a user's preference for a predetermined audio file A step of reproducing an audio file according to the list of generated audio files, a step of calculating an emotion response index based on a user's body reaction signal with respect to the audio file to be reproduced, Checking the user's preference and non-preference for the audio file, and controlling the reproduction of the audio file based on the preference and the non-preference of the audio file.

The details of other embodiments are included in the detailed description and drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

According to the apparatus and method for reproducing a multimedia file of the present invention as described above, one or more of the following effects can be obtained.

The user can check the preference and non-preference of the multimedia file based on the user's emotional response index, thereby repeatedly playing back the multimedia file preferred by the user or skipping the multimedia file that the user does not prefer.

Also, by generating a list of audio files on the basis of the user's preference and the current emotional state or other information of the user, the user can listen to a multimedia file having high preference without selecting a separate audio file, It has the advantage of being able to receive the appropriate audio file.

Also, it is possible to receive a predetermined audio file from another multimedia file reproducing apparatus through the network, and thus it is possible to listen to more various audio files according to the user's tendency.

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

FIG. 1 is a block diagram of an apparatus for reproducing a multimedia file according to an embodiment of the present invention. Referring to FIG.

3, the multimedia file reproducing apparatus 100 includes a signal processing unit 110, an emotional response index calculating unit 120, a preference / non-preference checking unit 130, a tag managing unit 140, a list generating unit 150, A playback management unit 160, a storage unit 170, a transceiver unit 180, and a control unit 190. [ Here, the multimedia file reproducing apparatus 100 refers to an MP3 player, a portable multimedia player (PMP), a mobile phone, an UMPC (Ultra Mobile PC), and a TV, Assume that you are playing a file.

The signal processing unit 110 receives a user's body reaction signal measured through a contact or non-contact sensor. That is, when the user touches a part of the user's body through the contact sensor during the time of listening to a specific audio file, or when the heartbeat waveform of the user is measured through the non-contact sensor, a signal of the measured heartbeat pulse waveform is received. Here, the contact and non-contact sensors are those used for sensing the degree of excitement of the sympathetic nervous system and determining the preference for the audio file through the data, and methods for measuring the change in heartbeat generally can be applied . As the contact sensor, PPG (Photoplethysmography) for detecting a change in blood flow per unit time is used, and as the non-contact sensor, an RFID sensor using the reflection amount of light can be used.

For example, the contact sensor may be provided in a sound device such as a headset, and the multimedia file reproducing apparatus 100, or may be directly contacted to a user in a chest attaching manner to measure a change amount of a user's heartbeat.

The signal processing unit 110 obtains heart rate data from the input heartbeat waveform data and transmits the heart rate data to the emotion response index calculation unit 120.

The emotion response index calculator 120 calculates exponents (e.g., a low frequency (LF), a high frequency (HF), and a standard deviation NN) required for calculation of the emotion response index based on the heart rate data obtained by the signal processor 110 (SDNN) and Root of the Mean Squared Difference of Successive NN intervals (RMSSD)), and calculates the emotion response index and the reference average value using the detected index. Here, the black response index can be calculated using a predetermined index among the indices.

[Equation 1] is a formula for calculating the emotion response index E (t) at a predetermined time t. Here, it is assumed that the emotion response index is represented by SDNN for N seconds and the data re-sampling rate is F (Hz).

[Equation 1]

는 시간(

)에서의 각 심박 피크 사이의 시간 간격(sec)을 말하며, F는 바람직하게 2-4Hz이다. 이하, 도 2에서

을 나타낸 도면을 설명한다. here,

Time (

), And F is preferably 2-4 Hz. 2,

Will be described.

Equation (2) is a formula for calculating a reference value that is an average of emotional response time during a predetermined time (x t) when the user starts listening to the first audio file.

&Quot; (2) "

는 오디오 파일의 시작 부분을 말하며,

를 말한다. 여기서, 오디오 파일의 시작 부분부터 일정시간 동안의 감정반응을 검출하는 것은, 오디오 파일을 청취하는 각 사용자마다의 심장 박동의 변화량에 따른 감정반응지수를 계산하기 위해서이다. 따라서, 계산된 감정반응지수의 평균인 기준 값은 사용 자마다 다를 수 있으며, 이에 기준 값을 설정한 구간(

~

)은 사용자의 감정반응여부를 판단하는 데이터에서 배제하는 것이 바람직하다. here,

Is the beginning of the audio file,

. Here, the detection of the emotional response for a certain period of time from the beginning of the audio file is for calculating the emotional response index according to the amount of change in heartbeat for each user who listens to the audio file. Therefore, the reference value, which is the average of the calculated emotion response index, may be different for each user.

~

Is preferably excluded from the data for judging whether or not the user's emotional reaction has occurred.

Equation (3) is a formula for calculating the degree of non-preference of the audio file with respect to the predetermined time t during the listening of the audio file. Here, since the second and subsequent audio files are in a state where the user's emotional state is changed by the audio file reproduced before the start portion, the emotional response index for the predetermined time (dt) Is excluded from the value that judges the preference of the user.

&Quot; (3) "

는

~

까지의 감정반응지수의 평균을 나타내며,

는 소정의 제1 임계값이다. here,

The

~

Of the respondents,

Is a predetermined first threshold value.

이

보다 작은 경우, 사용자의 감정반응지수가 지속적으로 낮게 유지되고 있다고 판단하고, 이에 해당 오디오 파일에 대한 선호도가 낮다고 판단하여 현재 재생되는 오디오 파일을 스킵하고 다음 오디오 파일을 재생한다. In other words,

this

It is determined that the user's emotional response index is kept low, and it is determined that the preference for the audio file is low, so that the currently played audio file is skipped and the next audio file is played back.

) 청취한 후, 상기 오디오 파일의 선호도를 판단하기 위해 계산하는 수식이다. Equation (4) indicates that the audio file is played back from the predetermined time to the ending time

), And calculates it to determine the preference of the audio file.

 &Quot; (4) "

는

~

까지의 감정반응지수의 평균을 나타내며,

는 소정의 제2 임계값이다. here,

The

~

Of the respondents,

Is a predetermined second threshold value.

이

보다 큰 경우, 사용자의 감정반응지수가 전체적으로 높게 유지되고 있다고 판단하고, 이에 해당 오디오 파일에 대한 선호도가 높다고 판단하여 해당 오디오 파일을 반복 재생한다. In other words,

this

It is determined that the user's emotional response index is maintained as a whole, and it is determined that the preference for the audio file is high, and the audio file is repeatedly played back.

The emotional response index, the reference value, and the like can be calculated based on [Equation 1] to [Equation 4], and the higher the emotional response index, the higher the probability that the audio file that the user is listening to is emotionally disturbed .

However, since the emotional response index is not constant depending on the physical condition of the user, the measurement value for a certain period of time is set as a reference value from the time when the user begins to listen to music, and then the change in the emotional response index is calculated while listening to music . That is, the calculation of the emotional response index always uses the emotional response value at the initial stage of music listening as a reference value, and determines the preference of the music currently being played back based on the reference value.

As a result of calculating the emotional response index, if the emotional response index increases beyond a predetermined threshold value, the user determines that the preference for the music is high. If the emotional response index falls below a predetermined threshold value, Is low.

The preference / non-preference checking unit 130 checks whether the user's preference and non-preference for the corresponding audio file are based on the calculated emotion response index. Here, the degree of non-preference and preference of a predetermined audio file can be found based on the calculated values of [Equation 3] and [Equation 4].

The tag management unit 140 displays tag information indicating the degree of preference of the audio file based on the emotion response index calculated through the emotion response index calculation unit 120. [ Here, the tag information is displayed only in a peak having a large size in a heartbeat waveform.

For example, based on the number of tag information of a predetermined audio file, it is possible to repeatedly reproduce the audio file and to skip (i.e., skip) to the next audio file. That is, when there is a large amount of tag information, it is determined that there is a high peak in the heartbeat waveform, so that the user's preference for the audio file is high.

The tag management unit 140 checks the tag information of the user's heartbeat waveform with respect to a predetermined audio file. If the tag information is concentrated in a predetermined time interval, It is determined that only the corresponding section is preferred. In addition, if the tag information is distributed over the entire time during which the audio file is reproduced, the tag management unit 140 determines that the user prefers the audio file. Here, the determination result determines whether the audio file is to be repeatedly reproduced in units of intervals or in an audio file after the audio file is repeatedly reproduced. Hereinafter, an example in which iterative reproduction is determined in units of intervals and audio files in FIG. 3 will be described.

The list generating unit 150 generates a priority list for the audio file preferred by the user based on the average value, the maximum value, the minimum value, and the preference index of the emotion response index for a predetermined audio file.

For example, if the user previously listened to an audio file from A to H, the A audio file would be 5, the B audio file 3, the C audio file skip, the D audio file 1, 3, F audio file 2, G audio file 4, H audio file is skipped.

Accordingly, the list generation unit 150 determines that the user prefers the audio file repeatedly repeatedly, and generates a priority list of the audio files with the audio files having a large number of repetitions as priority. That is, the priority list includes audio files A, G, B, E and F. [ Here, if the user repeatedly listens to the predetermined audio file more than twice, it is assumed that the user prefers the audio file. Thus, the audio file that the user has listened to once and the skipped audio file (i.e., D, C, and H) are not included in the priority list.

The list generating unit 150 may generate the priority list based on the emotion state information and other information (for example, weather information, position information, audio file information, etc.) based on the user's body reaction signal do. Here, the list generator 150 re-generates a priority list by weighting each piece of information. Here, the weight value may be arbitrarily set by the user or the control unit 190. [ Meanwhile, the list generating unit 150 may regenerate the priority list using only the emotion state information or other information of the user.

For example, the audio file of the priority list generated by the list generation unit 150 is reproduced when the audio file of the user is reproduced. Here, it is assumed that the list generating unit 150 regenerates the priority list based on the user's emotion state information and other information (e.g., position information). In the present invention, regenerating the priority list based on the emotion state information and the position information is an embodiment, and may further include other information to regenerate the priority list.

Then, when the first audio file is reproduced, the current emotion state of the user (i.e., a body reaction signal) is checked based on a reference value that is an average of the emotional reaction time calculated through Equation (2) Receiving unit 180 provided in the mobile communication terminal 100. [ Here, the current position of the user can be provided through GPS.

Then, based on the checked emotional state of the user (i.e., the body reaction signal), the user searches for an audio file that the user prefers when the emotion state is the same (i.e., the body reaction signal) For example, Seoul), and searches for the audio file listened to. Here, the emotion state and position information of the previous user can be known through the emotion response index value and position information for each audio file stored in the storage unit 170. [

That is, as shown in FIG. 4A, the list generating unit 150 generates a list 410 of audio files that are stored in the storage unit 170 when the user is in a predetermined emotional state, The list 420 of audio files that have been listened to is searched, and the state values for the two pieces of information are calculated by applying the weight values set for the respective pieces of information.

Next, based on the calculated state value, a priority is set (430) on the audio file including two pieces of information (for example, user's emotion information and position information). Here, it is assumed that the weight for user emotion state information is 0.6 and the weight for position information is 0.4.

Then, as shown in FIG. 4B, the new priority list 450 is generated by combining the list 430 including the set priorities and the previously created priority list 440 based on the two pieces of information.

Accordingly, the user can listen to the preferred audio file based on the current emotional state and the current position, without performing a separate audio file selection operation.

The playback management unit 160 controls the repeat playback or skip operation of the corresponding audio file according to the checked preference and non-preference through the preference / non-preference checking unit 130.

For example, when the emotion response index for a predetermined audio file is high, it is determined that the user's preference is high, and the audio file is repeatedly reproduced. When the emotion response index for a predetermined audio file is low, (I.e., determines that the user does not prefer), and skips the audio file to reproduce the next audio file.

In addition, the playback management unit 160 sequentially plays audio files having a high degree of preference based on the priority list generated by the list generation unit 150.

The storage unit 170 stores a predetermined multimedia file (i.e., an audio file), a user's body reaction signal input through the signal processing unit 110, an emotion response index value for each audio file, tag information, a preference index, (E.g., weather information, location information, audio file information, and the like).

For example, when the reproduction of a predetermined audio file is completed, the storage unit 170 stores an emotion response index value and tag information for the audio file, and stores a preference index for the audio file listened to by the user.

The transmission / reception unit 180 transmits the audio file of the multimedia file playback apparatus 100 to another multimedia file playback apparatus connected to the network, or receives a predetermined audio file from another multimedia file playback apparatus.

For example, the user A can receive the audio file that the user has listened to under the predetermined condition (for example, the same physical response signal) from the multimedia file reproducing apparatus of the user B through the multimedia file reproducing apparatus 100.

Also, the transceiver 180 receives the location information of the user transmitted through the GPS.

The control unit 190 searches the storage unit 170 for the preference index of the audio file and the audio file that the user has listened to in response to a request from the list generation unit 150 and provides the search result. Here, the audio file listened to under predetermined conditions refers to an audio file that the user is listening to when the user is a specific body response signal, and an audio file that the user has listened to at a specific location.

For example, when the list generator 150 requests information on the same physical response signal as the currently-checked user's body reaction signal and the corresponding audio file, the controller 190 reads Search for audio files.

When the control unit 190 receives a request for transmission of an audio file corresponding to a predetermined condition from another multimedia file control apparatus through the transmission / reception unit 180, the control unit 190 searches for and provides the corresponding audio file.

In addition, the controller 190 controls the operation of each of the functional blocks 110 to 180 constituting the multimedia file reproducing apparatus 100.

Herein, the term " part " used in the present embodiment means a hardware component such as software or an FPGA or an ASIC, and 'part' performs certain roles. However, 'part' is not meant to be limited to software or hardware. &Quot; to " may be configured to reside on an addressable storage medium and may be configured to play one or more processors. Thus, by way of example, 'parts' may refer to components such as software components, object-oriented software components, class components and task components, and processes, functions, , Subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables. The functions provided in the components and components may be further combined with a smaller number of components and components or further components and components.

을 나타낸 도면이다. FIG. 2 is a block diagram of an apparatus for reproducing a multimedia file according to an exemplary embodiment of the present invention.

Fig.

는 시간(

) 에서의 각 심박 피크 사이의 시간 간격(sec)을 말하는 것으로, 즉 연속하는 가장 높은 피크들 간의 사이를 말한다. 여기는,

를 측정하여 사용자의 감정반응지수를 계산하는데 이용한다. As shown,

Time (

(Sec) between the peaks of the heartbeat in the heartbeat, that is, the interval between the highest consecutive peaks. here is,

To measure the user's emotional response index.

FIG. 3A and FIG. 3B are views illustrating an example in which an apparatus for reproducing a multimedia file according to an exemplary embodiment of the present invention determines repetitive playback of a predetermined interval unit and an audio file unit of an audio file. Here, the tag information is displayed on the heartbeat waveform of the user, so that the user's preference for the audio file can be known.

3A, when a heartbeat pulse signal of a user is inputted through the signal processing unit 110, the tag management unit 140 displays tag information 300 indicating the preference of the audio file.

Next, the tag management unit 140 checks the tag information 300 to see whether the tag information 300 is concentrated in a section within a specific time, or whether the tag information 300 is entirely Is distributed.

As a result, it can be seen that the tag information is distributed over the entire time during which the audio file is reproduced. Accordingly, it is determined that the user prefers the audio file, and the audio file is repeatedly reproduced.

On the other hand, if the tag information 300 is densely packed in a predetermined time period (for example, 100 to 200 seconds) as shown in FIG. 3B, it is determined that the user prefers only the corresponding section of the audio file, Only the section within the relevant time of the file is played repeatedly.

5 is a flowchart illustrating a method of reproducing a multimedia file according to an embodiment of the present invention.

First, in response to a user's request to reproduce an audio file, the reproduction management unit 160 reproduces the audio file of the priority list generated by the list generation unit 150 (S510). Here, the priority list is generated based on the average value, the maximum value, the minimum value and the preference index of the emotion response index for a predetermined audio file.

Next, the signal processing unit 110 receives the user's body reaction signal through the contact or non-contact sensor (S520). Here, PPG is used to detect changes in blood flow per unit time, and an RFID sensor using light reflection can be used as a noncontact sensor. In general, a change in heart rate of a user is measured through a sensor.

Then, the signal processing unit 110 obtains heart rate data from the input heartbeat waveform data, and the emotion response index calculating unit 120 calculates exponents (for example, LF, HF, SDNN, RMSSD, and the like), and calculates the emotion response index using the detected index (S530). Here, the process of calculating the emotion response index has been described in the above-mentioned Equation (1), and a detailed description thereof will be omitted.

Then, when the first audio file is reproduced, the emotional response index calculating unit 120 checks the current emotional state of the user based on a reference value which is an average of the emotional reaction time calculated through [Equation 2]. Then, the list generating unit 150 requests the control unit 190 to search for the audio file that the user prefers when the emotion state is the same as the checked emotion state. Also, the list generating unit 150 requests the control unit 190 to search for the audio file listened to by the user when the condition is the same using the other information.

Then, the list generator 150 regenerates a new priority list based on the information searched by the controller 190 (S540). Here, the process of regenerating the priority list has been described with reference to FIG. 4A and FIG. 4B, so a detailed description will be omitted.

Then, the tag management unit 140 displays the tag information based on the calculated emotion response index (S550). Here, the tag information indicates the preference of the audio file on the basis of the emotion response index, and the tag information is displayed only on the peak having a large size in the heartbeat waveform.

Then, the preference / non-preference checking unit 130 checks whether the user's preference / non-preference for the audio file is based on the calculated emotion response index, and checks whether the audio file is the user's preferred audio file (S560).

If it is determined in step S560 that the corresponding audio file is not the user's preferred audio file, the playback management unit 160 ends the playback of the audio file (i.e., skips the corresponding audio file) (S565).

If it is determined in operation S560 that the audio file is the user's preferred audio file, the tag management unit 140 checks the tag information for the audio file in operation S570.

If it is determined in step S570 that the tag information is concentrated in the section within a specific time period (S580), the reproduction management section 160 determines that the user prefers only the section within the corresponding time of the audio file, Repeatedly played back (S590). Here, the user's emotional response index is calculated while repeating the section within the time, and it is determined whether the section is repeated or the next audio file is to be reproduced.

On the other hand, if it is determined in step S570 that the tag information is distributed over the entire time during which the audio file is reproduced, the reproduction management unit 160 determines that the user prefers the reproduced audio file, (S585).

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

FIG. 1 is a block diagram of an apparatus for reproducing a multimedia file according to an embodiment of the present invention. Referring to FIG.

를 나타낸 도면이다. FIG. 2 is a block diagram of an apparatus for reproducing a multimedia file according to an exemplary embodiment of the present invention.

Fig.

FIG. 3A and FIG. 3B are views illustrating an example in which an apparatus for reproducing a multimedia file according to an exemplary embodiment of the present invention determines repetitive playback of a predetermined interval unit and an audio file unit of an audio file.

4A and 4B are views illustrating an example in which a list generation unit of a device for reproducing a multimedia file regenerates a priority list according to an embodiment of the present invention.

5 is a flowchart illustrating a method of reproducing a multimedia file according to an embodiment of the present invention.

Description of the Related Art

110: signal processing unit 120: emotion response index calculating unit

130: preference / non-preference degree check unit 140: tag management unit

150: list generation unit 160: reproduction management unit

170: Storage unit 180: Transmitting /

190:

Claims (18)

An emotion response index calculation unit for calculating an emotion response index based on a user's body reaction signal; A preference / non-preference degree check unit for checking whether the user's preference and non-preference for the audio file are checked based on the calculated emotion response index; A list generating unit for generating a list of audio files preferred by the user based on the average of the emotion response index and the user's preference for the audio file; And And a reproduction management unit for controlling the reproduction of the audio file based on the preference and the degree of preference of the audio file and for reproducing the audio file corresponding to the list of the generated audio file, Wherein the average of the emotional response indexes is calculated by excluding emotion indices computed for a predetermined period of time from a reproduction start time point of an audio file. The method according to claim 1, The mathematical expression for calculating the emotion response index at time t through the emotion response index calculating unit may be expressed as:

ego,

Time (

And F is the Re-Sampling Rate and is an emotional response for N seconds. ≪ Desc / Clms Page number 19 > The method according to claim 1, The mathematical expression for calculating the reference value through the emotion response index calculation unit may be,

ego,

Is the beginning of the audio file,

A device for playing back multimedia files. The method according to claim 1, The mathematical expression for determining the degree of non-preference of the audio file through the emotion-

ego,

The

~

Of the respondents,

Is a predetermined first threshold value. The method according to claim 1, The mathematical expression for determining the preference of the audio file through the emotion response index calculation unit may be expressed as:

ego,

The

~

Of the respondents,

Is a predetermined second threshold value. The method according to claim 1, Wherein the list generator regenerates the priority list based on the current state information of the user. The method according to claim 1, Wherein the reproduction management unit determines whether the audio file is repeatedly reproduced according to a preference for the audio file. The method according to claim 1, A tag management unit displaying tag information indicating a degree of preference of an audio file based on the calculated emotion response index; And And a control unit for searching for and providing an audio file including the current status information of the user according to a request of the list generation unit. 9. The method of claim 8, Further comprising a transmission / reception unit for transmitting the searched audio file to another multimedia file playback apparatus or receiving a predetermined audio file from the other multimedia file playback apparatus. Generating a list of audio files preferred by the user on the basis of the average of the emotion response index of the pre-stored user and the user's preference for the predetermined audio file; Reproducing the audio file according to the list of the generated audio files; Calculating an emotion response index based on a user's body reaction signal with respect to the audio file to be reproduced; Checking the user's preference and non-preference for the audio file based on the calculated emotion response index; And Controlling the reproduction of the audio file based on the preference and the degree of non-preference of the audio file, Wherein the average of the emotional response indexes is calculated by excluding emotion indexes calculated for a predetermined period of time from a reproduction point of a beginning portion of an audio file. 11. The method of claim 10, The equation for calculating the emotion response index at the predetermined time t is:

ego,

Time (

) Is the time interval (sec) between each peak of the heartbeat at the heart rate, F is the Re-Sampling Rate, and N is the emotional response. 11. The method of claim 10, The equation for calculating the reference value on the basis of the emotion response index,

ego,

Is the beginning of the audio file,

In method for playing multimedia files. 11. The method of claim 10, The formula for determining the degree of non-preference of the audio file is:

ego,

The

~

Of the respondents,

Is a predetermined first threshold value. 11. The method of claim 10, The mathematical expression for determining the preference of the audio file,

ego,

The

~

Of the respondents,

Is a predetermined second threshold value. 11. The method of claim 10, Wherein the list of audio files is a priority list based on the current status information of the user. 16. The method of claim 15, Transmitting an audio file including current state information of the user to another multimedia file reproducing apparatus; And Further comprising: receiving a predetermined audio file from the other multimedia file playback apparatus and adding it to the list of audio files. 11. The method of claim 10, Controlling the reproduction of the audio file based on the preference and the degree of non-preference of the audio file, And determining whether the audio file is repeatedly reproduced according to the user's preference for the audio file. 11. The method of claim 10, And displaying tag information indicating a degree of preference of an audio file based on the calculated emotion response index.

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