KR102632475B1 - Application and methods of Sound play according to exercise speed - Google Patents

Abstract

These embodiments include a processor executing instructions for playing sound sources; Memory for storing instructions; and an output unit that externally outputs results according to execution of commands, wherein the processor inputs sound source data played by a user into a speed measurement algorithm to measure the sound source tempo of the sound source data, and measures the sound source tempo of the user's sound source data. A sound source reproduction device is provided, which measures movement tempo based on movement values measured according to movement, and compares the sound source tempo and movement tempo to generate and provide a control signal to assist the user's movement.

Description

Sound playback device and method according to exercise speed {Application and methods of Sound play according to exercise speed}

The present invention relates to an apparatus and method for reproducing a sound source according to the speed of movement, and particularly to an apparatus and method for reproducing a sound source that adjusts and matches the reproduction speed of the sound source to the speed of movement.

The content described in this section simply provides background information for this embodiment and does not constitute prior art.

Recently, music has been known to have a close relationship with walking, running, or other repetitive movements, such as increasing exercise effectiveness and helping people exercise longer. Accordingly, the exercise effect can be improved through music in the exercise process for each type of user's exercise.

Conventionally, music was selected and exercised as needed. In this case, the music may be played randomly according to a playlist set by the user or a preset playlist for each exercise. However, such music does not take into account the exercise characteristics of each user and may be implemented to have a different tempo from the exercise being performed.

The main purpose of the embodiments of the present invention is to provide an application that uses the acceleration sensor of a smartphone to determine the speed of movement and adjusts and matches the playback speed of the sound source to the speed of movement.

Other unspecified objects of the present invention can be additionally considered within the scope that can be easily inferred from the following detailed description and its effects.

According to one aspect of this embodiment, the present invention includes a processor executing instructions for playing sound sources; a memory storing the instructions; and an output unit that externally outputs a result of executing the commands, wherein the processor inputs sound source data played by a user into a speed measurement algorithm to measure the sound source tempo of the sound source data. , A sound source characterized in that the movement tempo is measured based on the movement value measured according to the user's movement, and a control signal to assist the user's movement is generated and provided by comparing the sound source tempo and the movement tempo. Suggest a playback device.

Preferably, when the sound source data is selected through the user's terminal, the processor receives the motion value measured according to the user's movement from the user's terminal, and uses the sound source data to determine the sound source data. It is characterized by generating sound source information that represents the speed in numbers, and using the motion value to generate movement information that represents the speed according to the user's movement in numbers.

Preferably, the processor includes: a first control signal to control the user's movement by adjusting a movement tempo value of the user based on the sound source information; Alternatively, a second control signal may be generated to control the sound source data by adjusting the sound source tempo value of the sound source data selected by the user based on the motion information.

Preferably, the processor connects the timing according to the user's movement with the playback time stamp of the sound source data, compares the motion information with the sound source information, and, when a timing greater than a threshold is collected, considers the collected timing. A first control signal is generated, and the first control signal controls the user's movements based on sound source data selected by the user.

Preferably, the processor receives metadata for the selected sound source data, generates timing according to movement symmetrical to the sound source data, and automatically changes the sound source information of the sound source data according to the user's movement. A second control signal is generated to control the sound source data based on the user's movement.

Preferably, the processor generates the movement information indicating the user's stepping timing using an acceleration sensor formed in the user's terminal, and the stepping timing is the user's moving direction obtained through the acceleration sensor. , is obtained based on speed, vibration, and impact, and is characterized in that it includes the user's speed and the moment when the user steps on the ground.

Preferably, the processor generates the stepping timing indicating a time stamp according to stepping by inputting the 3-axis acceleration time series value obtained through the acceleration sensor, and sends the step timing to the user based on a plurality of pre-stored sound source data. The step timing is corrected according to the sound source data selected by the user, and the correction calculates the user's step frequency within a unit time and determines the peak point as the optimal step time based on a graph showing the step frequency over time. It is characterized by being set with a stamp.

Preferably, the processor utilizes a PID controller (Proportional-Integral-Derivative Controller) to adjust the time elapsed between steps of the sound source data selected by the user to the time elapsed between steps of the user to move the user. It is characterized by responding to tempo changes.

Preferably, the PID controller includes a target tempo value aimed at making the user move and a difference value between the movement tempo values measured based on the movement value measured according to the user's movement, an integral value of the difference value, and the A correction value is calculated by adding the derivative value of the difference value, and the stepping timing is corrected through the correction value, and the correction value is added to each of the difference value, the integral value of the difference value, and the derivative value of the difference value. It is characterized by being calculated by multiplying the proportionality constant value.

Preferably, the speed measurement algorithm is implemented with a Discrete Wavelet Transform, and the Discrete Wavelet Transform uses a scale and a position variable that the sound source data played by the user represents the energy of a specific time. It is characterized by measuring the sound source tempo of the sound source data by calculating a coefficient for a quantity similar to an excitation wavelet.

According to another embodiment of the present invention, the present invention is a method of reproducing a sound source by a sound source reproduction device, where sound source data played by a user is input into a speed measurement algorithm to measure the sound source tempo of the sound source data, and the user Measuring the movement tempo based on the movement value measured according to the movement of; and comparing the sound source tempo and the movement tempo to generate and provide a control signal to assist the user's movement.

Preferably, the step of measuring the sound source tempo and measuring the movement tempo includes transmitting the motion value measured according to the user's movement from the user's terminal when the sound source data is selected through the user's terminal. It is characterized by generating sound source information that represents the speed of the sound source data in numbers using the sound source data, and generating movement information that represents the speed according to the user's movement in numbers using the motion value.

Preferably, the step of generating and providing the control signal includes: a first control signal to control the user's movement by adjusting the movement tempo value of the user based on the sound source information; Alternatively, a second control signal may be generated to control the sound source data by adjusting the sound source tempo value of the sound source data selected by the user based on the motion information.

As described above, according to the embodiments of the present invention, the present invention has the effect of helping people to immerse themselves in exercise by matching music with exercise that includes rhythm elements such as walking and running that perform repetitive movements. .

Even if the effects are not explicitly mentioned here, the effects described in the following specification and their potential effects expected by the technical features of the present invention are treated as if described in the specification of the present invention.

1 is a diagram illustrating a sound source playback management system according to an embodiment of the present invention.
FIG. 2 is a block diagram illustrating and illustrating a computing environment of a sound source reproduction device including a computing device suitable for use in preferred embodiments of the present invention.
Figure 3 is a flowchart showing a method of reproducing a sound source using a sound source reproducing device according to an embodiment of the present invention.
Figure 4 is a diagram showing exercise assistance through a sound source reproduction device according to an embodiment of the present invention.
Figure 5 is a diagram showing PID control according to an embodiment of the present invention.

Hereinafter, in describing the present invention, if it is determined that related known functions may unnecessarily obscure the gist of the present invention as they are obvious to those skilled in the art, the detailed description will be omitted, and some embodiments of the present invention will be described. It will be described in detail through exemplary drawings. However, the present invention may be implemented in many different forms and is not limited to the described embodiments. In order to clearly explain the present invention, parts that are not relevant to the description are omitted, and the same reference numerals in the drawings indicate the same members.

The term and/or includes any of a plurality of related stated terms or a combination of a plurality of related stated terms.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be.

The suffixes “module” and “part” for components used in the following description are given or used interchangeably only for the ease of preparing the specification, and do not have distinct meanings or roles in themselves.

Terms such as first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

The present invention relates to an apparatus and method for reproducing sound sources according to movement speed.

The apparatus and method for reproducing a sound source according to the movement speed of the present invention can be implemented as an application that determines the movement speed by utilizing the acceleration sensor of the user terminal and adjusts and matches the playback speed of the sound source according to the movement speed, and is necessarily limited to this. It doesn't work.

1 is a diagram illustrating a sound source playback management system according to an embodiment of the present invention.

Referring to FIG. 1, the sound source reproduction management system 1 includes a sound source reproduction device 10, a user device 20, and a communication network 30.

The user device 20 is an electronic device that transmits data necessary for processing by the sound source reproduction device 10 and receives the processed data. The user device 20 may be implemented as a computing device carried by the user, such as a smart phone, smart watch, tablet PC, or personal digital assistant. There may be a personal digital assistant (PDA), a laptop, etc., but it is not limited to these.

The sound source reproduction device 10 and the user device 20 are connected through a communication network 30. The communication network 30 refers to a set of communication facilities connected for the purpose of enabling communication between the sound source reproduction device 10 and the user device 20. The communication network 40 includes nodes, lines, trunk lines, and satellites, and these are connected and connected to each other.

The sound source reproduction device 10 includes a database. A database refers to a form of data storage in which data can be freely searched, extracted, deleted, edited, added, etc. Databases include Oracle, Infomix, Sybase, Relational Data Base Management System (RDBMS), Gemston, Orion, and object-oriented database management system ( Object Oriented Database Management System (OODBMS) can be implemented according to the purpose of this embodiment using a distributed database, cloud, etc.

Referring to FIG. 1, the sound source reproduction device 10 is a device that communicates with the user device 20 and processes data, and is shown as a separate configuration from the user device 20, but is not necessarily limited thereto, and is a device that processes data. It may be included in the device 20 and implemented to process data based on information obtained from the user device 20.

FIG. 2 is a block diagram illustrating and illustrating a computing environment of a sound source reproduction device including a computing device suitable for use in preferred embodiments of the present invention.

The sound source reproduction device 10 may be implemented as a computing device, such as a smart phone, a personal computer (PC), a tablet PC, a portable personal digital assistant (PDA), There may be a laptop, etc., but it is not limited to this.

The sound source reproduction device 10 includes a database. A database refers to a form of data storage in which data can be freely searched, extracted, deleted, edited, added, etc. Databases include Oracle, Infomix, Sybase, Relational Data Base Management System (RDBMS), Gemston, Orion, and object-oriented database management system ( Object Oriented Database Management System (OODBMS) can be implemented according to the purpose of this embodiment using a distributed database, cloud, etc.

The sound source reproduction device 10 according to a preferred embodiment of the present invention can assist the user's exercise based on sound source data selected and input by the user.

To this end, the sound source reproduction device 10 may include a processor and a memory that stores a program executed by the processor, the processor generates instructions for playing sound sources, and the generated instructions are used to assist the user's exercise. A control signal can be generated to do this.

In the embodiment shown in Figure 1, each component may have different functions and capabilities in addition to those described below, and may include additional components in addition to those described below.

The illustrated computing environment includes a sound source reproduction device 10. In one embodiment, the sound source reproduction device 10 may be any type of computing device that transmits and receives signals with another terminal.

The sound source reproduction device 10 includes at least one processor 110, a computer-readable storage medium 120, and a communication bus 160. The processor 110 may cause the sound source reproduction device 10 to operate according to the exemplary embodiment mentioned above. For example, the processor 110 may execute one or more programs stored in the computer-readable storage medium 120. The one or more programs may include one or more computer-executable instructions, which, when executed by the processor 110, cause the sound source reproduction device 10 to perform operations according to example embodiments. It can be configured.

Computer-readable storage medium 120 is configured to store computer-executable instructions or program code, program data, and/or other suitable form of information. The program 130 stored in the computer-readable storage medium 120 includes a set of instructions executable by the processor 110. In one embodiment, computer-readable storage medium 120 includes memory (volatile memory, such as random access memory, non-volatile memory, or a suitable combination thereof), one or more magnetic disk storage devices, optical disk storage devices, It may be flash memory devices, other types of storage media that can be accessed by the learning pattern analysis device 10 and store desired information, or a suitable combination thereof.

The communication bus 160 interconnects various other components of the sound source reproduction device 10, including the processor 110 and the computer-readable storage medium 120.

The sound source reproduction device 10 may also include one or more input/output interfaces 140 and one or more communication interfaces 150 that provide interfaces for one or more input/output devices (not shown). The input/output interface 140 and communication interface 150 are connected to the communication bus 160. An input/output device (not shown) may be connected to other components of the sound source reproduction device 10 through the input/output interface 140. Exemplary input/output devices include input devices such as pointing devices (such as a mouse or trackpad), keyboards, touch input devices (such as a touchpad or touch screen), voice or sound input devices, various types of sensor devices, and/or imaging devices; and/or output devices such as display devices, printers, speakers, and/or network cards. An exemplary input/output device (not shown) is a component that constitutes the sound source reproduction device 10 and may be included inside the sound source reproduction device 10, or may be a separate device distinct from the sound source reproduction device 10 and may be used with a computing device. It may be connected.

The sound source reproduction device 10 includes a processor that executes instructions for playing sound sources; Memory for storing instructions; and an output unit that outputs the results of executing the commands to the outside.

The sound source reproduction device 10 measures the sound source tempo of the sound source data by inputting the sound source data played by the user into a speed measurement algorithm, measures the movement tempo based on the movement value measured according to the user's movement, and measures the sound source data. By comparing the tempo and movement tempo, a control signal to assist the user's movement can be generated and provided.

When sound source data is selected through the user's terminal, the sound source reproduction device 10 can receive movement values measured according to the user's movement from the user's terminal. The sound source reproduction device 10 can use sound source data to generate sound source information that represents the speed of the sound source data in numbers, and can use motion values to generate movement information that represents the speed according to the user's movement in numbers.

The sound source reproduction device 10 is configured to provide (i) a first control signal to control the user's movement by adjusting the user's movement tempo value based on the sound source information, or (ii) a sound source of sound source data selected by the user based on the movement information. A second control signal that controls sound source data can be generated by adjusting the tempo value.

The sound source reproduction device 10 connects the timing according to the user's movement with the playback time stamp of the sound source data, compares the movement information with the sound source information, and when a timing greater than a threshold is collected, sends a first control signal in consideration of the collected timing. can be created. Here, the first control signal may control the user's movements based on sound source data selected by the user.

The sound source reproduction device 10 receives metadata for the selected sound source data, generates timing according to movements that are symmetrical to the sound source data, and provides a second control signal that automatically changes the sound source information of the sound source data according to the user's movement. can be created. Here, the second control signal can control sound source data based on the user's movement.

The sound source reproduction device 10 may generate movement information indicating the timing of the user's footsteps by using an acceleration sensor formed in the user's terminal. Here, the stepping timing is obtained based on the user's movement direction, speed, vibration, and shock obtained through an acceleration sensor, and may include the user's speed and the moment when the user steps on the ground.

The sound source reproduction device 10 generates a stepping timing indicating a time stamp according to the stepping by inputting the 3-axis acceleration time series value acquired through an acceleration sensor, and sound source data selected by the user based on a plurality of previously stored sound source data. The stepping timing can be corrected accordingly. Here, the correction can be made by calculating the user's stepping frequency within a unit time and setting the peak point as a time stamp according to the optimal stepping based on a graph showing the stepping frequency over time.

The sound source reproduction device 10 responds to changes in the user's movement tempo by utilizing a PID controller (Proportional-Integral-Derivative Controller) to adjust the time elapsed between steps of the sound source data selected by the user to the time elapsed between steps of the user. You can.

The PID controller calculates the difference value of the measured movement tempo value, the integral value of the difference value, and the derivative value of the difference value based on the target tempo value aimed at making the user move and the movement value measured according to the user's movement. By calculating the correction value, the stepping timing can be corrected through the correction value. Here, the correction value may be calculated by multiplying each of the difference value, the integral value of the difference value, and the derivative value of the difference value by a proportionality constant value.

The speed measurement algorithm can be implemented with Discrete Wavelet Transform.

The discrete wavelet transform measures the sound source tempo of the sound source data as the sound source data played by the user calculates a coefficient for a quantity similar to a wavelet with a scale and position variable representing the energy at a specific time. You can.

Figure 3 is a flowchart showing a method of reproducing a sound source using a sound source reproducing device according to an embodiment of the present invention. The sound source reproduction method can be implemented through a sound source reproduction device. The method of reproducing a sound source is performed by a sound source reproducing device, and descriptions that overlap with detailed descriptions of operations performed by the sound source reproducing device will be omitted.

Music is known to have a close relationship with walking, running, or other repetitive movements, such as increasing exercise effectiveness and helping people exercise longer. Accordingly, the sound source reproduction device of the present invention can determine the rhythm of the user's exercise using the acceleration sensor of the smartphone and then adjust the music playback speed accordingly.

The sound source playback method includes collecting data from a plurality of users (S310), calculating and storing a stepping timing value for a specific song based on the collected data (S320), and selecting the title and singer as the user selects the music to be played. It includes a step of transmitting song information (S330), a step of receiving a step timing value for the song (S340), and a step of adjusting the speed of the song to match the step timing value to the user's timing (S350).

The step of collecting data from a plurality of users (S310) may collect data including information about the sound source selected by the plurality of users, the time the user steps, etc.

In the step (S320) of calculating and storing a stepping timing value for a specific song based on the collected data, when a user using a sound source playback device selects a specific song to listen to, the step S320 calculates a stepping timing value for the selected specific song. and can be saved.

The timing of foot stepping utilizes the acceleration sensor of the user device and can be calculated from a machine learning model that recognizes foot stepping events.

According to one embodiment of the present invention, the user device may be implemented as a smartphone, a smart watch, etc., but is not necessarily limited thereto, and may be implemented as a device capable of measuring movement of the user's body.

The input value of the machine learning model can be implemented as acceleration time series values on the x, y, and z axes obtained through an acceleration sensor, and the output value can be implemented as a timestamp of the stepping event. .

According to an embodiment of the present invention, data from a plurality of users for a specific song can be collected using a crowdsourcing method, and the instantaneous value of optimal stepping can be corrected through this.

Correction calculates the user's stepping frequency within unit time (Time windows), draws a graph with time on the x-axis and stepping frequency on the y-axis, and sets the peak point on the graph as the timestamp of optimal stepping. there is.

Let the time required between steps of a specific song be a, and the time taken between steps of the current user be b. By using a PID controller (proportional-integral-derivative controller) to adjust a to b, a fast user It can respond flexibly to tempo changes.

In Figure 3, each process is shown as being sequentially executed, but this is only an illustrative explanation, and those skilled in the art can change the order shown in Figure 3 and execute it without departing from the essential characteristics of the embodiments of the present invention. Alternatively, it may be applied through various modifications and modifications, such as executing one or more processes in parallel or adding other processes.

Figure 4 is a flow showing exercise assistance through a sound source reproduction device according to an embodiment of the present invention.

Referring to Figure 4, the sound source reproduction device can perform both the function of running in time with the music and the function of matching the music to the speed of the music. Here, the function of running in time with the music can be achieved through a first control signal, and the function of matching the music to the running speed can be achieved through the second control signal.

The first control signal includes selecting and playing a song (S410), detecting the stepping timing using an acceleration sensor (S420), connecting the stepping timing with the sound source reproduction timestamp (S430), and collecting various timings. It can be generated through the step of determining and storing the stepping timing (S440).

Accordingly, the first control signal may provide the user with stepping timing so that the user can run in accordance with the song.

The second control signal transmits meta information about the selected song, receives step timing (S450), generates step timing information for the requested song (S46), plays music (S470), and It includes a step (S480) in which the tempo of the music is automatically changed according to the user's running speed.

In the step S450 of transmitting meta information about the selected song and receiving the stepping timing, if the meta information about the selected song is transmitted and timing information is generated by performing step S460, the stepping timing can be received. Here, meta information may include song information such as title, singer, and BPM for the selected music, but is not necessarily limited thereto.

Figure 5 is a diagram showing PID control according to an embodiment of the present invention.

Referring to FIG. 5, PID control can output an output indicating the current tempo value when a setpoint indicating the target tempo value is input.

Assuming that the difference between the target tempo value and the current tempo value is an error, the correction value (u) can be calculated through Equation 1 below.

In Equation 1 above, Kp, Ki, and Kd each represent a proportionality constant, and e represents the difference between the target tempo value and the current tempo value.

Therefore, the correction value (u) may represent the sum of the error value representing the difference between the target tempo value and the current tempo value, the error integral value, and the differential value for a specific time.

By controlling as described above, overshooting (reacting too sensitively to tempo) or undershooting (reacting too slowly) can be flexibly minimized in response to changes in the tempo of the user's footsteps.

Therefore, when the user selects music to play, the sound source playback device measures the speed (bpm, beats per minute) of the music using the Discrete Wavelet Transform algorithm and allows the user to exercise such as walking or running. When performed, the tempo of movement is continuously measured using the device's acceleration sensor, and the speed of the music being played can be adjusted to match the user's movement tempo.

In addition, the sound source playback device can input the BPM information of the music in advance by pressing a specific button on the screen in accordance with the beat while listening to the music the user wants to play, and the user can use the automatic tempo adjustment function through the acceleration sensor. You can turn it off and set it to the original music speed. Additionally, the sound source playback device can change the speed of the music to a desired level.

Accordingly, music can enhance exercise effectiveness. In particular, repetitive movements such as exercise, walking, running, etc. have rhythm elements, so you can immerse yourself in exercise by matching these rhythm elements with music through a sound source playback device. can help

Operations according to the present embodiments may be implemented in the form of program instructions that can be performed through various computer means and recorded on a computer-readable medium. Computer-readable media refers to any media that participates in providing instructions to a processor for execution. Computer-readable media may include program instructions, data files, data structures, or combinations thereof. For example, there may be magnetic media, optical recording media, memory, etc. A computer program may be distributed over networked computer systems so that computer-readable code can be stored and executed in a distributed manner. Functional programs, codes, and code segments for implementing this embodiment can be easily deduced by programmers in the technical field to which this embodiment belongs.

These embodiments are intended to explain the technical idea of the present embodiment, and the scope of the technical idea of the present embodiment is not limited by these examples. The scope of protection of this embodiment should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of rights of this embodiment.

10: Sound source playback device
110: processor
120: Computer-readable storage medium
130: program
140: input/output interface
150: communication interface
160: communication bus

Claims (13)

A processor that executes instructions for playing sound sources; a memory storing the instructions; In the sound source reproduction device including an output unit that outputs the results of executing the commands to the outside,
The processor,
The sound source data played by the user is input into a speed measurement algorithm to measure the sound source tempo of the sound source data, and the movement tempo is measured based on the movement value measured according to the user's movement,
Comparing the sound source tempo and the movement tempo to generate and provide a control signal to assist the user's movement,
The speed measurement algorithm determines the sound source tempo of the sound source data as the sound source data played by the user calculates a coefficient for a quantity similar to a wavelet with a scale and position variable representing the energy at a specific time. A sound source reproduction device characterized by being implemented with a discrete wavelet transform that measures . According to paragraph 1,
The processor,
When the sound source data is selected through the user's terminal, the movement value measured according to the user's movement is received from the user's terminal,
A sound source reproduction device that uses the sound source data to generate sound source information that represents the speed of the sound source data in numbers, and uses the motion value to generate movement information that represents the speed according to the user's movement in numbers. . According to paragraph 2,
The processor,
a first control signal to control the user's movement by adjusting the user's movement tempo value based on the sound source information; or
A sound source reproduction device characterized in that it generates a second control signal to control the sound source data by adjusting the sound source tempo value of the sound source data selected by the user based on the motion information. According to paragraph 3,
The processor,
Connect the timing according to the user's movement with the playback time stamp of the sound source data, compare the movement information with the sound source information, and when a timing greater than a threshold value is collected, generate a first control signal in consideration of the collected timing; ,
The first control signal controls the user's movements based on sound source data selected by the user. According to paragraph 3,
The processor,
Receives metadata for the selected sound source data, generates timing according to movement symmetrical to the sound source data, and generates a second control signal that automatically changes the sound source information of the sound source data according to the user's movement. do,
The second control signal controls the sound source data based on the user's movement. According to paragraph 2,
The processor,
Generates the movement information indicating the timing of the user's steps using an acceleration sensor formed in the user's terminal,
The stepping timing is obtained based on the user's movement direction, speed, vibration, and shock obtained through the acceleration sensor, and includes the user's speed and the moment the user steps on the ground. Playback device. According to clause 6,
The processor,
The 3-axis acceleration time series value acquired through the acceleration sensor is input to generate the stepping timing indicating a time stamp according to the stepping, and the stepping timing according to the sound source data selected by the user based on a plurality of pre-stored sound source data. correct the timing,
The correction is a sound source reproduction device characterized in that the user's stepping frequency within a unit time is calculated and the peak point is set as a time stamp according to the stepping based on a graph showing the stepping frequency over time. In clause 7,
The processor,
Characterized by responding to changes in the user's movement tempo by utilizing a PID controller (Proportional-Integral-Derivative Controller) to adjust the time elapsed between steps of the sound source data selected by the user to the time elapsed between steps of the user. A sound source reproduction device. According to clause 8,
The PID controller,
A value obtained by adding the difference value of the movement tempo value measured based on the target tempo value aimed at causing the user to move and the movement value measured according to the user's movement, the integral value of the difference value, and the derivative value of the difference value Calculating a correction value through the correction value, correcting the stepping timing through the correction value,
The correction value is calculated by multiplying each of the difference value, the integral value of the difference value, and the derivative value of the difference value by a proportional constant value. delete In a method of reproducing a sound source by a sound source reproduction device,
Inputting the sound source data played by the user into a speed measurement algorithm to measure the sound source tempo of the sound source data, and measuring the movement tempo based on the movement value measured according to the user's movement; and
Comprising the step of comparing the sound source tempo and the movement tempo to generate and provide a control signal to assist the user's movement,
The step of measuring the sound source tempo and measuring the movement tempo includes a coefficient for a quantity similar to a wavelet where the sound source data played by the user has a scale and a position variable representing the energy at a specific time. A sound source reproduction method characterized by measuring the sound source tempo of the sound source data through a speed measurement algorithm implemented with a Discrete Wavelet Transform that measures the sound source tempo of the sound source data by calculating . According to clause 11,
The steps of measuring the sound source tempo and measuring the movement tempo are:
When the sound source data is selected through the user's terminal, the movement value measured according to the user's movement is received from the user's terminal, and sound source information representing the speed of the sound source data in numbers is generated using the sound source data. A sound source reproduction method characterized by generating and using the motion value to generate motion information that represents the speed of the user's movement in numbers. According to clause 12,
The step of generating and providing the control signal is:
a first control signal for controlling the user's movement by adjusting the user's movement tempo value based on the sound source information; or
A sound source reproduction method characterized by generating a second control signal to control the sound source data by adjusting the sound source tempo value of the sound source data selected by the user based on the motion information.

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