Device for controlling output of audio data including binaural beats or method therefor

Abstract

According to an embodiment of the present invention, a device configured to output audio data including binaural beats is disclosed, and the device may comprise: an information collector configured to acquire user information; and a processor configured to control an output of audio data including binaural beats, wherein the processor is configured to: determine a volume level of an audio output of the binaural beats according to user information acquired at a first time point; output the audio data including the binaural beats according to the volume level determined at the first time point; determine a volume level of an audio output of the binaural beats according to user information acquired while the audio data is being output at a second time point; and output the audio data including the binaural beats according to the volume level determined at the second time point.

Description

Output control device for audio data including binaural beats or method for the same

[0001] The present invention relates to an output control device for audio data including binaural beats or a method for the same, and more specifically, to a device configured to control the volume of audio data including binaural beats based on user information or a method for the same.

[0002] Binaural beat sound sources or audio based on user information or biosignals refer to an audio experience customized according to user data collected in real time. Binaural beats are a scientific method that artificially generates brainwaves by sending different frequency signals to each ear, and are primarily used for improving concentration, reducing stress, and meditation. When combined with technology based on the user's biosignals (heart rate, brainwaves, breathing patterns, etc.) or behavioral data (sleep habits, fatigue levels, etc.), it is possible to generate customized binaural beat sound sources tailored to an individual's current state.

[0003] The following are the operating methods and key features of this system.

[0004] - Biosignal measurement

[0005] To reflect the user's real-time condition, biosignals such as heart rate, brainwaves, respiration rate, stress index, and skin temperature are measured by wearable devices (smartwatches, EEG headsets, etc.). Through this, it is possible to determine whether the user needs concentration, relaxation, or sleep induction.

[0006] - Signal analysis and audio adjustment

[0007] It analyzes biosignal data to set binaural beat frequencies suitable for the user's condition. For example, if the user is stressed, it plays binaural beats in the delta or theta wave range to induce relaxation, while adjusting to frequencies in the alpha wave range if concentration is needed.

[0008] - Customized audio generation and feedback

[0009] The initially set frequency is automatically fine-tuned according to user signals, and when the user reaches a specific state, the audio source is adjusted in real-time through a feedback loop to match changes in the signal. For example, if the heart rate drops or brainwaves transition to a relaxed state, the audio tone is naturally adjusted.

[0010] - Personalized learning and improvement

[0011] The system learns user responses to provide more precisely customized audio sources over the long term. By using machine learning algorithms to learn the user's brainwave or heart rate patterns, the audio can be adjusted to achieve better effects over time.

[0012] These personalized binaural beat systems are useful for purposes such as meditation, concentration, and sleep induction, and can be of great help in psychological stability, stress relief, and productivity enhancement.

[0013] However, conventional studies have focused solely on generating binaural beat sources based on biosignals, thus overlooking the effects of personalized binaural beat volume. Furthermore, finding a customized volume suitable for the user requires measuring and analyzing changes in biosignals in real time while listening to the binaural beat source, which consumes a significant amount of time.

[0014] Accordingly, the present invention proposes an efficient method for changing a user's brainwave state by outputting a binaural beat sound source or audio.

[0015] The present invention proposes an efficient method for changing a user's brainwave state by outputting a binaural beat sound source or audio.

[0016] According to one embodiment of the present invention, a device configured to output audio data including binaural beats is proposed, wherein the device includes an information collector configured to acquire user information; and a processor configured to control the output of audio data including binaural beats, wherein the processor determines a volume level of the audio output of the binaural beats according to user information acquired at a first time point, outputs audio data including the binaural beats according to the volume level determined at the first time point, determines a volume level of the audio output of the binaural beats according to user information acquired while the audio data is being output at a second time point, and outputs audio data including the binaural beats according to the volume level determined at the second time point.

[0017] Additionally or alternatively, the processor may be configured to set the volume level of the audio output of the binaural bit to a preset value, as the user information obtained at the second time point does not fall within a preset range.

[0018] Additionally or alternatively, the processor may be configured to maintain the volume level of the audio output of the binaural bit as the user information acquired at the second time point falls within a preset range.

[0019] Additionally or alternatively, the processor may be configured to output audio data including binaural beats for multiple users using user information of multiple users. The volume level or variable range of the volume level of the audio output of the binaural beats for each of the multiple users may be set independently or individually.

[0020] Additionally or alternatively, the above audio data may include background audio data.

[0021] Additionally or alternatively, the volume level of the binaural beat may be set lower than the volume level of the background audio data.

[0022] Additionally or alternatively, the above user information may include the user's biometric information.

[0023] Additionally or alternatively, a variable range of the volume level of the audio output of the binaural beat can be set according to the range among a plurality of preset ranges that includes the user information.

[0024] Additionally or alternatively, the first point in time may be set prior to when a request for audio output of binaural beats based on user information is input.

[0025] Additionally or alternatively, the interval between the first time point and the second time point may be set according to user information obtained at the first time point.

[0026] According to another embodiment of the present invention, a method for outputting audio data including binaural beats is proposed, wherein the method is performed by a device configured to control the output of audio data including binaural beats, and may include the steps of: determining a volume level of the audio output of the binaural beats according to user information acquired at a first time point, and outputting audio data including the binaural beats according to the volume level determined at the first time point; and determining a volume level of the audio output of the binaural beats according to user information acquired while the audio data is being output at a second time point, and outputting audio data including the binaural beats according to the volume level determined at the second time point.

[0027] According to another embodiment of the present invention, a computer-readable medium is proposed that stores code configured to be executed by a computer or processor for outputting audio data including the binaural bits.

[0028] The above-mentioned problem-solving methods are merely some of the embodiments of the present invention, and various embodiments reflecting the technical features of the present invention can be derived and understood by those skilled in the art based on the detailed description of the present invention to be described below.

[0029] The present invention has the following technical effects.

[0030] In this specification, the term "binaural beat sound source" means a sound source containing binaural beats.

[0031] The present invention allows the initial volume of a binaural beat source to be set based on acquired user information, thereby enabling the purpose of the binaural beat source (sleep, stress relief, concentration, etc.) to be achieved within a relatively short period of time.

[0032] In addition, the present invention can achieve the purpose of the binaural beat sound source (sleep, stress relief, concentration, etc.) within a relatively short period of time by resetting the volume of the binaural beat sound source based on acquired user information.

[0033] The effects according to the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the following detailed description of the invention.

[0034] The accompanying drawings, which are included as part of the detailed description to aid in understanding the present invention, provide embodiments of the present invention and explain the technical concept of the present invention together with the detailed description.

[0035] Figure 1 shows the protocol of an experiment performed to obtain important factors for output control of a binaural beat sound source according to the present invention.

[0036] Figure 2 shows the distribution of Root Mean Square of Successive Differences (RMSSD) values ​​of Heart Rate Variability (HRV) of subjects according to the volume of a binaural beat source obtained experimentally.

[0037] Figure 3 shows the distribution of lnHF (Logarithm of High-Frequency Power) values ​​of the subject's heart rate variability (HRV) according to the volume of the binaural beat source obtained experimentally.

[0038] FIG. 4 shows a flowchart of a method for controlling the output volume of a binaural beat sound source according to the present invention.

[0039] FIG. 5 shows a detailed flowchart of a method for controlling the output volume of a binaural beat sound source according to the present invention.

[0040] FIG. 6 illustrates the UI configuration of a sound therapy app using a binaural beat sound source according to the present invention.

[0041] FIG. 7 illustrates a block diagram of a device for controlling the output volume of a binaural beat sound source according to the present invention.

[0042] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Identical or similar components regardless of drawing symbols will be assigned the same reference number, and redundant descriptions thereof will be omitted. The suffixes "module" and "part" used for components in the following description are assigned or used interchangeably solely for the ease of drafting the specification and do not inherently possess distinct meanings or roles. Furthermore, in describing embodiments disclosed in this specification, if it is determined that a detailed description of related prior art could obscure the essence of the embodiments disclosed in this specification, such detailed description will be omitted. Additionally, the attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification; the technical concept disclosed in this specification is not limited by the attached drawings, and it should be understood that they include all modifications, equivalents, and substitutions that fall within the spirit and technical scope of the present invention.

[0043] Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but said components are not limited by said terms. These terms are used solely for the purpose of distinguishing one component from another.

[0044] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.

[0045] A singular expression includes a plural expression unless the context clearly indicates otherwise.

[0046] In this application, terms such as “comprising” or “having” are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0047]

[0048] Figure 1 shows the protocol of an experiment performed to obtain important factors for output control of a binaural beat sound source according to the present invention.

[0049] The experiment used is conducted for a minimum of 26 minutes, and the subject is subjected to a stress-inducing stimulus for 5 minutes, followed by the measurement of user information, specifically heart rate variability in the experiment, for 3 minutes, and then the user information is measured at 3-minute intervals while listening to a binaural beat sound source.

[0050] In addition, the above experiment divides the subject group into three groups and sets the output volume of the binaural beat source differently. For example, Group A is set to output (listen to) the binaural beat source at a relatively high volume, Group B is set to output (listen to) the binaural beat source at a relatively medium volume, and Group C is set to output (listen to) the binaural beat source at a relatively low volume.

[0051] This is an experimental method established under the hypothesis that there is a statistically significant difference in the measured values ​​(or their average) of heart rate variability depending on the volume of the binaural beat source; a statistically significant difference in the measured values ​​(or their average) of heart rate variability depending on time; or a statistically significant difference in the measured values ​​(or their average) of heart rate variability by volume of the binaural beat source depending on time.

[0052] Various values ​​can be derived from the measured values ​​of heart rate variability. Among them, we will explain two indicators relevant to the present invention: RMSSD (Root Mean Square of Successive Differences) and lnHF (Logarithm of High-Frequency Power).

[0053] RMSSD is an indicator calculated by averaging the squares of the differences between consecutive heart rate intervals (RR intervals) and converting the result into the square root. Simply put, it is an indicator representing variability by measuring the difference between consecutive beats. RMSSD reflects the level of parasympathetic nervous system activity (primarily related to relaxation and rest); high RMSSD values ​​indicate a relaxed state, while low RMSSD values ​​indicate a state of stress or tension. It is primarily used to assess stress or check recovery status after exercise. It is also utilized for analyzing the fatigue of athletes and evaluating the psychological stress and health status of the general public.

[0054] lnHF is the log-transformed value of the Power Spectral Density (PSD) of heart rate variability measured in the high-frequency band. Since HRV in the high-frequency (HF) band represents parasympathetic nervous system activity, a higher lnHF value indicates that the parasympathetic nervous system is activated, signifying a state of relaxation. Conversely, a low lnHF value may indicate that stress or sympathetic nervous system activation is relatively dominant. lnHF is useful for evaluating autonomic nervous system balance, particularly parasympathetic activity, and is frequently used to analyze psychological stress, fatigue, and psychological health status.

[0055] Both indicators are associated with parasympathetic nervous system activity, and high RMSSD and lnHF signify a state of relaxation, recovery, or a healthy autonomic nervous system balance. It is common for both indicators to increase after exercise, meditation, or relaxation activities, and they decrease as stress or fatigue accumulates. These indicators are particularly useful as data that can be collected in real-time from wearable devices, and they can be widely utilized for personal stress management, health tracking, and assessment of recovery ability.

[0056]

[0057] Figure 2 shows the distribution of Root Mean Square of Successive Differences (RMSSD) values ​​of Heart Rate Variability (HRV) of subjects according to the output volume of a binaural beat source obtained experimentally.

[0058] For three subjects, the RMSSD measurements according to the output volume of the binaural beat sound source measured using the experimental method described in Fig. 1 are shown.

[0059] The center of each box plot (box width; Interquartile Range (IQR)) represents the distribution of 50% of the total data (i.e., data corresponding to 25% to 75%), the center solid line represents the median, and the total length of the box plot represents the distribution of the entire data.

[0060] It can be seen that the RMSSD values ​​of the subjects vary from person to person depending on the binaural beat volume.

[0061] Referring to Figure 2, when the subject's heart rate was low, a relatively high RMSSD value was observed for a low-volume binaural beat source, and when the heart rate was high, a relatively high RMSSD value was observed for a high-volume binaural beat source.

[0062]

[0063] Figure 3 shows the distribution of lnHF (Logarithm of High-Frequency Power) values ​​of the Heart Rate Variability (HRV) of a subject according to the output volume of a binaural beat source obtained experimentally.

[0064] For three subjects, the lnHF measurement values ​​according to the output volume of the binaural beat sound source measured by the experimental method described in Fig. 1 are shown.

[0065] The center of each box plot (box width; Interquartile Range (IQR)) represents the distribution of 50% of the total data (i.e., data corresponding to 25% to 75%), the solid line in the center represents the median, and the total length of the box plot represents the distribution of the entire data.

[0066] It can be seen that the subjects' lnHF values ​​vary from person to person depending on the binaural beat volume.

[0067] When the subject's heart rate was low, relatively high lnHF values ​​were observed for low-volume binaural beat sources, and when the heart rate was high, relatively high lnHF values ​​were observed for high-volume binaural beat sources.

[0068] In conclusion, when the volume of binaural beat sources was adjusted according to heart rate variability, the average values ​​of heart rate variability indicators showed a statistically significant difference, leading to the conclusion that providing personalized binaural beat volume is effective for stress relief.

[0069] In the experiment, other indicators were acquired and analyzed in addition to RMSSD and lnHF. Since the changes in RMSSD and lnHF values ​​among the heart rate variability indicators responded more rapidly than other indicators, it is considered advisable to monitor these two indicator values ​​when assessing the effects of binaural beat sources.

[0070] Examining the box plots of the heart rate variability index data for each subject reveals that the relatively high median and maximum values ​​associated with the volume of the binaural beat source vary from person to person. In other words, by initially outputting (listening) a volume of the personalized binaural beat source tailored to heart rate variability, entry into a relaxed state is induced relatively quickly; subsequently, by observing the trends in the heart rate variability index values, a binaural beat volume different from the initial value is suggested.

[0071] For example, the volume control according to the present invention can sequentially adjust the volume level, such as low volume -> normal volume -> high volume -> normal volume -> low volume.

[0072]

[0073] FIG. 4 shows a flowchart of a method for controlling the output volume of a binaural beat sound source according to the present invention. This method may be performed by a device (200) for controlling the output volume of a binaural beat sound source according to FIG. 4, and the device (200) will be described with reference to FIG. 7. Meanwhile, the method according to FIG. 4 may be performed not only by the device (200) but also by a processor (220) of the device (200). Hereinafter, the method will be described as being performed by the “device (200).”

[0074] The device (200) may be configured to acquire user information (S410). The user information includes the user's biometric information, and may include, for example, heart rate variability information, but the present invention is not limited thereto. The detection of user information may specifically be performed through a sensor, and the device (200) may acquire user information from the sensor.

[0075] The device (200) may be configured to determine the initial volume of binaural beats (or binaural beat audio data) (S420). The initial volume may be set differently depending on the user. For example, it may be set differently depending on the user's personal information, such as the user's age or heart rate. Personal information may include the user's blood type, MBTI (Myers-Briggs Type Indicator), height, weight, etc., and the initial volume may be set according to at least one of the user's personal information.

[0076] For example, the initial volume of binaural beat audio data can be set according to the user's average heart rate range as follows.

[0077] Average Heart Rate Secondary Volume Level~ Low 60s per minute High Middle 60s per minute High

[0078] If a user-customized initial volume is provided, improvement in the user's state (e.g., relaxation) can be achieved in a shorter period of time.

[0079] Here, it was described that the initial volume level is set to one of three levels, but this is just an example, and fewer or more volume levels may be used as the initial volume level, and the same applies to the volume level to be re-determined or reset.

[0080] The device (200) can control the output of binaural beat audio data to an audio output device such as a speaker (S430). At this time, the device (200) may not output directly to an audio output device, but transmit the binaural beat audio data to an audio device such as a user's wired / wireless earphones, headphones, or wireless speaker, and allow the binaural beat audio data to be output by the audio device.

[0081] Additionally, binaural beat audio data may be output independently, but may also be output together with background audio data from an audio output device or audio device. In this case, the volume level of the binaural beat audio data may be set lower than the volume level of the background audio data.

[0082] The device (200) can obtain user information while binaural beat audio data is output from an audio output device or audio device (S430). This is to determine whether the binaural beat audio data improves the user's state (e.g., a relaxed state).

[0083] The device (200) can re-determine the output volume of binaural beat audio data according to the acquired user information (S440). After that, the device (200) can cause the binaural beat audio data to be output at the re-determined output volume (S440). Additionally, the device (200) can acquire user information while the binaural beat audio data is being output from an audio output device or audio device at the re-determined output volume (S440).

[0084]

[0085] FIG. 5 shows a detailed flowchart of a method for controlling the output volume of a binaural beat sound source according to the present invention.

[0086] This can be performed by a device (200) for controlling the output volume of a binaural beat sound source according to FIG. 5, and the device (200) will be described with reference to FIG. 7. Meanwhile, the method according to FIG. 5 may be performed not only by the device (200) but also by the processor (220) of the device (200). Hereinafter, the method will be described as being performed by the “device (200)”.

[0087] Figure 5 illustrates Figure 4 in more detail.

[0088] The device (200) may be configured to acquire user information (S510). The user information includes the user's biometric information, and may include, for example, heart rate variability information, but the present invention is not limited thereto. The detection of user information may specifically be performed through a sensor, and the device (200) may acquire user information from the sensor.

[0089] The device (200) can be configured to determine the initial volume of a binaural beat sound source (audio data) (S520).

[0090] The device (200) can control the output of binaural beat audio data to an audio output device such as a speaker, and can acquire user information while the binaural beat audio data is being output to the audio output device or audio device (S530).

[0091] Since S510 to S530 are similar to S410 to S430 of FIG. 4, for details not explained with reference to FIG. 5, the explanation of FIG. 4 will be referred to or cited.

[0092] The device (200) can check whether the acquired user information falls within a preset range (S531). This is to determine whether additional control of the volume of the binaural beat audio data is required. For example, the acquired user information may include an RMSSD, and it can be determined whether the acquired RMSSD value falls within a preset range.

[0093] If the acquired user information falls within a preset range, the device (200) no longer needs to control the output volume of the binaural beat audio data. Accordingly, the device (200) can be configured to output the binaural beat audio data at the previously output volume (S542). For example, if the time (length) of the output of the binaural beat audio data is preset, the output volume can be maintained until the end point. In another embodiment, after S542, when the preset time has elapsed, the device (200) can perform S530 again.

[0094] If the acquired user information does not fall within a preset range, the device (200) can check whether the number of volume recursives exceeds a preset number (e.g., 3 times) (S532).

[0095] As the number of volume re-determinations does not exceed a preset number, the device (200) may be configured to re-determinate the output volume of binaural beat audio data (S541). In this case, the device (200) may (re)determinate the volume according to a preset volume sequence. For example, if the output volume of the binaural beat audio data is set to follow a volume sequence that repeats low -> medium -> high -> medium -> low, the re-determination volume (level) may be (re)determinate accordingly.

[0096] Then, the device (200) returns to S530 to output binaural beat audio data at a determined volume and can obtain user information while outputting the binaural beat audio data.

[0097] As the number of volume recalculations exceeds a preset number, the device (200) may be configured to output binaural beat audio data while maintaining the previously output volume (S542). For example, if the time (length) of the output of binaural beat audio data is preset, the output volume may be maintained until the end point. In another embodiment, after S542, when the preset time has elapsed, the device (200) may perform S530 again.

[0098]

[0099] FIG. 6 illustrates the configuration of a user interface (UI) of a sound therapy app using a binaural beat sound source according to the present invention.

[0100] FIG. 6 illustrates a UI (100) of a sound therapy app that is displayed on a user terminal's display. The sound therapy app provides an interface (10) that allows selecting a mode (stress relief mode, concentration mode, sleep mode, meditation mode) that indicates the purpose or use of the binaural beat audio data.

[0101] Depending on the purpose or use of the binaural beat audio data, the frequency of the binaural beat may be changed, and / or the initial volume may be changed.

[0102] The sound therapy app provides an interface (20) for controlling the playback (output) of binaural beat audio data. Depending on the input to the interface (20), the binaural beat audio data may be output to an audio output device or audio device, or the output may be stopped or interrupted.

[0103]

[0104] FIG. 7 illustrates a block diagram of a device for controlling the output volume of a binaural beat sound source according to the present invention.

[0105] In describing the device (200) related to Fig. 7, it is described that the audio data output to an audio output device or audio device includes binaural bits.

[0106] The device (200) may include an information collector (210) for acquiring user information, a processor (220) for controlling the output of audio data using the acquired user information, and a memory (240) for storing data for the output of audio data of the processor. The data for the output of audio data of the processor may include at least some of the following: binaural bits to be provided according to the present invention, background audio data to be output together with the binaural bits, information on user-customized initial volume levels such as Table 1 described above, output volume sequences of the binaural bits, frequency information of the binaural bits according to the purpose or use of the binaural bits, "preset range" information of S531 in FIG. 5, "preset number" or volume re-determination count of S532 in FIG. 5, and volume (level) information of the most recently used binaural bits.

[0107] Additionally, the device (200) may further include an audio output device (240). The audio output device (240) may be configured such as a speaker mounted or installed in the device (200) and may output audio data including binaural bits as a voice signal.

[0108] Additionally, the device (200) may further include a transceiver (250). The transceiver (250) may be configured to receive data stored in the memory (240) described above from a server or an external device, or to transmit audio data including binaural bits to a wired or wireless audio device. Additionally, the transceiver (250) may be configured to receive user information to be acquired by the information collector (210) from an external sensor, etc.

[0109] Additionally, the device (200) may further include a display (not shown). The display may be configured to output a user interface (100) such as that shown in FIG. 6.

[0110] The processor (220) may be configured to determine the volume level of the audio output of the binaural beat according to user information obtained at a first time point, and to output audio data including the binaural beat according to the determined volume level. Here, the audio data may include background audio data. Additionally, the volume level of the background audio data may be set to be higher than the volume level of the binaural beat.

[0111] User information may include at least one of biosignals such as the user's heart rate information, the user's MBTI type, or the user's age group information. The heart rate information may include at least one of heart rate variability or various indicators derivable from heart rate variability.

[0112] The term "first point in time" may include a point in time prior to when a request for output of audio data including binaural beats (by a user) is input or detected. Additionally, the term "first point in time" may include a point in time prior to when audio data including binaural beats begins to be output while audio data including binaural beats was not being output.

[0113] Additionally, the processor (220) may be configured to determine the volume level of the audio output of the binaural bit according to user information obtained while the audio data is output at a second time point, and to output audio data including the binaural bit according to the determined volume level.

[0114] The volume level of the audio output of the binaural beat can have its variable range set according to the range containing user information among a plurality of preset ranges.

[0115] The interval between the first time point and the second time point may be set differently depending on user information. Alternatively, the interval between the first time point and the second time point may be set according to user information obtained at the first time point.

[0116] The processor (220) may be configured to determine whether user information obtained at a second point in time falls within a preset range.

[0117] As user information obtained at the second time point does not fall within a preset range, the processor (220) may be configured to set the volume level of the audio output of the binaural bit to a preset value. The preset value may correspond to a volume level according to a preset volume control (change or adjustment) sequence.

[0118] As user information obtained at the second point in time falls within a preset range, the processor (220) can be configured to maintain the volume level of the audio output of the binaural bit.

[0119] Meanwhile, the device (200) according to the present invention supports not only a single user but also multiple users simultaneously.

[0120] Accordingly, the information collector (210) can acquire multiple user information. The processor (220) may be configured to output audio data including binaural bits for each of the multiple users according to the acquired multiple user information. In this case, the volume level of the audio output of the binaural bits for each of the multiple users, or the variable range of the volume level, may be set independently or individually. Accordingly, it is possible to provide optimal binaural bits for multiple users.

[0121]

[0122] Even if not described with reference to FIG. 7, a device (200) configured to output audio data including binaural beats of the present invention may perform the operation according to the present invention as described above in FIG. 4 to FIG. 6.

[0123]

[0124] In addition, as another aspect of the present invention, the operation of the above-described proposal or invention may be provided as code that can be implemented, practiced, or executed by a "computer" (a comprehensive concept including a system on chip (SoC) or (micro)processor, etc.), or as a computer-readable storage medium or computer program product that stores or contains said code, and the scope of the present invention may be extended to said code or as a computer-readable storage medium or computer program product that stores or contains said code.

[0125]

[0126] The detailed description of the preferred embodiments of the present invention disclosed above is provided to enable those skilled in the art to implement and practice the present invention. Although the present invention has been described with reference to preferred embodiments, those skilled in the art will understand that various modifications and changes can be made to the present invention as described in the following claims. Accordingly, the present invention is not intended to be limited to the embodiments shown herein, but to be given the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. An information collector configured to acquire user information; and It includes a processor configured to control the output of audio data including binaural bits, and The above processor is, The volume level of the audio output of the binaural beat is determined according to user information obtained at the first time point, and audio data including the binaural beat is output according to the volume level determined at the first time point. A device that determines the volume level of the audio output of the binaural beat according to user information obtained while the audio data is output at a second time point, and controls the output of audio data including the binaural beat according to the volume level determined at the second time point.

2. In claim 1, the device wherein the audio data includes background audio data.

3. A device according to paragraph 2, wherein the volume level of the binaural beat is set lower than the volume level of the background audio data.

4. In paragraph 1, the above user information is: A device containing the user's biometric information.

5. A device according to claim 1, wherein a changeable range of the volume level of the audio output of the binaural beat is set according to a range among a plurality of preset ranges that includes the user information.

6. In paragraph 1, the processor is: A device configured to set the volume level of the audio output of the binaural beat to a preset value, as user information obtained at the second time point above does not fall within a preset range.

7. In paragraph 1, the processor is: A device configured to maintain the volume level of the audio output of the binaural beat as user information obtained at the second point in time falls within a preset range.

8. A device according to claim 1, wherein the first point in time is set prior to the input of a request for audio output of binaural beats based on user information.

9. A device according to claim 1, wherein the interval between the first time point and the second time point is set according to user information obtained at the first time point.

10. In paragraph 1, the processor is configured to output audio data including binaural bits for said plurality of users using user information of said plurality of users, and A device in which the volume level of the audio output of the binaural beat for each of the plurality of users, or the variable range of the volume level, is set independently or individually.

11. A method for outputting audio data including binaural beats, wherein the method is performed by a device configured to control the output of audio data including binaural beats, and A step of determining the volume level of the audio output of the binaural beat according to user information obtained at a first time point, and outputting audio data including the binaural beat according to the volume level determined at the first time point; and A method comprising the step of determining the volume level of the audio output of the binaural beat according to user information obtained while the audio data is output at a second time point, and outputting audio data including the binaural beat according to the volume level determined at the second time point.

12. A method according to claim 11, wherein the audio data includes background audio data.

13. A method according to claim 12, wherein the volume level of the binaural beat is set lower than the volume level of the background audio data.

14. In Paragraph 11, the above user information is: A method comprising a user's biometric information.

15. A method according to claim 11, wherein a changeable range of the volume level of the audio output of the binaural beat is set according to a range among a plurality of preset ranges that includes the user information.

16. A method according to claim 11, comprising the step of setting the volume level of the audio output of the binaural beat to a preset value, as the user information obtained at the second time point does not fall within a preset range.

17. A method according to claim 11, comprising the step of maintaining the volume level of the audio output of the binaural beat as the user information obtained at the second time point falls within a preset range.

18. A method according to claim 11, wherein the first point in time is set prior to the input of a request for audio output of binaural bits based on user information.

19. A method according to claim 11, wherein the interval between the first time point and the second time point is set according to user information obtained at the first time point.

20. In Paragraph 11, The method includes the step of acquiring multiple user information and outputting audio data including binaural beats for the acquired multiple users. A method in which the volume level of the audio output of the binaural beat for each of the plurality of users, or the variable range of the volume level, is set independently or individually.

21. A computer-readable medium storing code configured to execute a method according to any one of paragraphs 11 through 20 by a computer or processor.

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