Patent Publication Number: US-2021186219-A1

Title: Information processing device, information processing method, and recording medium

Description:
TECHNICAL FIELD 
     The present technology relates to an information processing device, an information processing method, and a recording medium, and more particularly to an information processing device, an information processing method, and a recording medium suitable for use in a case of presenting vibration in association with content. 
     BACKGROUND ART 
     Conventionally, in a chair-type sound device in which a vibration unit is integrated, there has been proposed a technology for obtaining a good sound effect by changing the vibration band of the vibration unit for the bass range according to the gender of the user (see Patent Document 1, for example). 
     Additionally, in recent years, in movie theaters and the like, a technology for enhancing a realistic feeling by vibrating a chair according to the content has been developed. 
     CITATION LIST 
     Patent Document 
     
         
         Patent Document 1: Japanese Patent Application Laid-Open No. 2001-285975 
       
    
     SUMMARY OF THE INVENTION 
     Problems to be Solved by the Invention 
     However, when the chair is vibrated according to the content, the resonance point of the vibration may deviate from the design value depending on the user&#39;s physique, sitting style, or the like, and there is a possibility that the expected effect is not given to the user. In Patent Document 1, this point is not particularly examined. 
     The present technology has been made in view of such a situation, and makes it possible to appropriately give the user the effect of vibration presented in association with the content. 
     Solutions to Problems 
     An information processing device of one aspect of the present technology includes a vibration control unit that individually controls vibration presented to a user in association with a content by each of a plurality of vibration presenting units on the basis of a characteristic of the user and positions of the vibration presenting units. 
     An information processing method of one aspect of the present technology includes individually controlling, by an information processing device, vibration presented to a user in association with a content by each of a plurality of vibration presenting units on the basis of a characteristic of the user and positions of the vibration presenting units. 
     A recording medium of one aspect of the present technology records a program to perform processing of individually controlling vibration presented to a user in association with a content by each of a plurality of vibration presenting units on the basis of a characteristic of the user and positions of the vibration presenting units. 
     In one aspect of the present technology, vibration presented to a user in association with a content by each of a plurality of vibration presenting units is individually controlled on the basis of a characteristic of the user and positions of the vibration presenting units. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  is a block diagram showing an embodiment of an information processing system to which the present technology is applied. 
         FIG. 2  is a block diagram showing a configuration example of an information processing device. 
         FIG. 3  is a block diagram showing a configuration example of an information processing unit. 
         FIG. 4  is a block diagram showing a configuration example of a vibration presenting device. 
         FIG. 5  is a block diagram showing a configuration example of a seat surface. 
         FIG. 6  is a flowchart for describing vibration characteristic analysis processing. 
         FIG. 7  is a graph showing an example of the vibration characteristic of an actuator. 
         FIG. 8  is a diagram showing an example of vibration characteristic data. 
         FIG. 9  is a flowchart for describing a first embodiment of content presenting processing. 
         FIG. 10  is a diagram showing examples of a position where a user sits on a seat surface. 
         FIG. 11  is a graph showing the estimation result of the load of each actuator. 
         FIG. 12  is a diagram for describing a method of correcting or generating vibration pattern data. 
         FIG. 13  is a flowchart for describing a second embodiment of the content presenting processing. 
         FIG. 14  is a diagram showing an example of a change in load due to a change in the posture of the user. 
         FIG. 15  is a flowchart for describing a third embodiment of the content presenting processing. 
         FIG. 16  is a flowchart for describing a fourth embodiment of the content presenting processing. 
         FIG. 17  is a diagram showing an example of a guidance screen. 
         FIG. 18  is a flowchart for describing a fifth embodiment of the content presenting processing. 
         FIG. 19  is a flowchart for describing a sixth embodiment of the content presenting processing. 
         FIG. 20  is a flowchart for describing a seventh embodiment of the content presenting processing. 
         FIG. 21  is a diagram showing a modification of vibration characteristic data. 
     
    
    
     MODE FOR CARRYING OUT THE INVENTION 
     Hereinafter, modes for carrying out the present technology will be described. Note that the description will be given in the following order. 
     1. First embodiment 
     2. Second embodiment 
     3. Third embodiment 
     4. Fourth embodiment 
     5. Fifth embodiment 
     6. Sixth embodiment 
     7. Seventh embodiment 
     8. Modification 
     9. Other 
     1. First Embodiment 
     First, a first embodiment of the present technology will be described with reference to  FIGS. 1 to 12 . 
     &lt;Configuration Example of Information Processing System  10 &gt; 
       FIG. 1  is a block diagram showing a configuration example of an information processing system  10  to which the present technology is applied. 
     The information processing system  10  is a system capable of presenting vibration to a user in association with content including at least one of video or audio. The information processing system  1  includes an information processing device  11 , a display device  12 , an audio output device  13 , and a vibration presenting device  14 . 
     The information processing device  11  is a device that controls presentation of content and vibration. The information processing device  11  supplies video data included in content data to the display device  12 , and controls the display of video by the display device  12 . The information processing device  11  supplies audio data included in content data to the audio output device  13 , and controls the output of audio by the audio output device  13 . The information processing device  11  supplies vibration control data for presenting vibration in association with the content to the vibration presenting device  14 , and controls the presentation of vibration by the vibration presenting device  14 . 
     The display device  12  is a device that displays video included in the content under the control of the information processing device  11 . The type of the display device  12  is not particularly limited, and is a display, a projector, a head-mounted display, or the like, for example. 
     The audio output device  13  is a device that outputs audio included in the content under the control of the information processing device  11 . The type of the audio output device  13  is not particularly limited, and the type is a speaker, headphones, and the like, for example. 
     The vibration presenting device  14  is a device that presents vibration (provides vibration) to at least a part of the user&#39;s body (e.g., shoulders, hips, buttocks, or the like) under the control of the information processing device  11 . The type of the vibration presenting device  14  is not particularly limited as long as it can present vibration to the user. For example, the shape of the vibration presenting device  14  can be any shape such as a sheet shape or a slate shape. Additionally, the vibration presenting device  14  may come into direct contact with the user&#39;s body, or may come into indirect contact with the user&#39;s body with clothes or the like interposed therebetween. For example, the vibration presenting device  14  includes a device that supports the user&#39;s body such as a chair type, a seat surface type, a bed type, or a floor type, a device worn by the user such as a clothing type, a bracelet type, or a glasses type, or a user-operated device such as a handle type, a lever type, or a pedal type. 
     Additionally, the vibration presenting device  14  includes various sensors and supplies sensor data indicating the detection result of each sensor to the information processing device  11 . 
     &lt;Configuration Example of Information Processing Device  11 &gt; 
       FIG. 2  is a block diagram showing a configuration example of the information processing device  11 . 
     The information processing device  11  includes a central processing unit (CPU)  101 , a read only memory (ROM)  102 , a random access memory (RAM)  103 , a bus  104 , an input/output interface  105 , an input unit  106 , an output unit  107 , a storage unit  108 , a communication unit  109 , and a drive  110 . The CPU  101 , the ROM  102 , and the RAM  103  are mutually connected by the bus  104 . The input/output interface  105  is also connected to the bus  104 . The input unit  106 , the output unit  107 , the storage unit  108 , the communication unit  109 , and the drive  110  are connected to the input/output interface  105 . 
     The input unit  106  includes, for example, an input switch, a button, a microphone, a camera, and the like. 
     The output unit  107  includes, for example, a display, a speaker, and the like. Note that each of the display device  12 , the audio output device  13 , and the vibration presenting device  14  of  FIG. 1  can be provided in the output unit  107  as a part of the information processing device  11 , for example. 
     The storage unit  108  includes, for example, a hard disk, a non-volatile memory, and the like. 
     The communication unit  109  includes, for example, a network interface and the like. The communication unit  109  communicates with the display device  12 , the audio output device  13 , and the vibration presenting device  14 . Note that any method can be used as the communication method of the communication unit  109 . For example, the communication method of the communication unit  109  may be either wired communication or wireless communication, and the communication unit  109  may support multiple communication methods. 
     The drive  110  drives a removable medium  111  such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory. 
     Note that hereinafter, in the information processing device  11 , the description of the bus  104  and the input/output interface  105  will be omitted as appropriate. For example, when the CPU  101  and the communication unit  109  exchange data through the bus  104  and the input/output interface  105 , it is described simply that the CPU  101  and the communication unit  109  exchange data. 
     &lt;Configuration Example of Information Processing Unit  151 &gt; 
       FIG. 3  is a block diagram showing a configuration example of an information processing unit  151  implemented by the CPU  101  of the information processing device  11  executing a predetermined control program. Note that in  FIG. 3 , the ROM  102 , the RAM  103 , the bus  104 , and the input/output interface  105  are not shown. 
     The information processing unit  151  includes an analysis unit  161  and an output control unit  162 . 
     The analysis unit  161  analyzes a vibration characteristic of the vibration presenting device  14  and a user characteristic of the user who uses the information processing system  10 . The analysis unit  161  includes a vibration characteristic analysis unit  171  and a user characteristic analysis unit  172 . 
     The vibration characteristic analysis unit  171  analyzes the vibration characteristic of the vibration presenting device  14  on the basis of sensor data and the like supplied from the vibration presenting device  14 . 
     The user characteristic analysis unit  172  analyzes the user characteristic on the basis of input data supplied from the input unit  106 , sensor data supplied from the vibration presenting device  14 , and the like. For example, the user characteristic analysis unit  172  estimates or detects a load applied to multiple vibration presenting units included in the vibration presenting device  14  by the user. 
     The output control unit  162  controls output of the content and the vibration corresponding to the content. The output control unit  162  includes a display control unit  181 , an audio control unit  182 , and a vibration control unit  183 . 
     The display control unit  181  controls the display of video by the display device  12 . For example, the display control unit  181  extracts video data from content data given from the outside, and performs processing, correction, and the like on the video data as necessary. Additionally, for example, the display control unit  181  supplies video data to the display device  12  through the communication unit  109 , in synchronization with the audio control unit  182  and the vibration control unit  183 , and causes the display device  12  to display video based on the video data. 
     The audio control unit  182  controls the output of audio by the audio output device  13 . For example, the audio control unit  182  extracts audio data from content data given from the outside, and performs processing, correction, and the like on the audio data as necessary. Additionally, for example, the audio control unit  182  supplies audio data to the audio output device  13  through the communication unit  109 , in synchronization with the display control unit  181  and the vibration control unit  183 , and causes the audio output device  13  to output audio based on the audio data. 
     The vibration control unit  183  individually controls vibration presented in association with the content by each vibration presenting unit included in the vibration presenting device  14  on the basis of the characteristic of the user and the positions of the multiple vibration presenting units. For example, the vibration control unit  183  generates vibration control data on the basis of vibration data and a tactile information database given from the outside. Note that details of vibration data and tactile information database will be described later. The vibration control unit  183  supplies vibration control data to the vibration presenting device  14  through the communication unit  109 , in synchronization with the display control unit  181  and the audio control unit  182 , and causes the vibration presenting device  14  to present vibration based on the vibration control data. 
     Note that content data and vibration data may be given to the information processing unit  151  by storing them in the storage unit  108  or the removable medium  111 , or may be given to the information processing unit  151  from an external server or the like through the communication unit  109 . Similarly, the tactile information database may be given to the information processing unit  151  by storing it in the storage unit  108  or the removable medium  111 , or may be given to the information processing unit  151  from an external server or the like through the communication unit  109 . 
     Additionally, vibration data may be included in content data, or may be provided separately from content data, for example. 
     Note that an example in which vibration data is provided separately from content data will be described below. Additionally, an example in which content data and vibration data are stored in the removable medium  111  and the tactile information database is stored in the storage unit  108  will be described below. 
     &lt;Configuration example of vibration presenting device  14 &gt; 
       FIG. 4  is a block diagram showing a functional configuration example of the vibration presenting device  14  of  FIG. 1 . 
     The vibration presenting device  14  includes a communication unit  201 , vibration presenting units  202 - 1  to  202 - n , and a sensing unit  203 . 
     The communication unit  201  includes, for example, a network interface and the like. The communication unit  109  supports a similar communication method as the communication unit  109  of the information processing device  11  and communicates with the communication unit  109 . 
     Each of the vibration presenting units  202 - 1  to  202 - n  individually presents vibration to the user on the basis of vibration control data supplied from the information processing device  11 . 
     Note that hereinafter, when it is not necessary to distinguish the vibration presenting units  202 - 1  to  202 - n  individually, they are simply referred to as the vibration presenting unit  202 . 
     The sensing unit  203  includes a sensor that detects data used for analyzing the vibration characteristic of the vibration presenting unit  202 . For example, the sensing unit  203  includes a pressure sensor, a gravity sensor, an acceleration sensor, and the like. The sensing unit  203  transmits sensor data indicating the detection result to the information processing device  11  through the communication unit  201 . 
     &lt;Specific Example of Vibration Presenting Device  14 &gt; 
       FIG. 5  is a schematic diagram showing a configuration example of a seat surface  241  which is a specific example of the vibration presenting device  14 . 
     The seat surface  241  forms a part of a chair or is provided on a chair, for example. 
     Inside the seat surface  241 , actuators  251 - 1  to  251 - 9  are arranged in 3 rows×3 columns. The actuators  251 - 1  to  251 - 9  correspond to the vibration presenting units  202 - 1  to  202 - n  of the vibration presenting device  14  of  FIG. 4 . 
     Note that in  FIG. 4 , the lower side is the front side of the seat surface  241  and the upper side is the rear side of the seat surface  241 . Accordingly, the actuators  251 - 1  to  251 - 3  are in the first row, and the actuators  251 - 7  to  251 - 9  are in the last row. Additionally, the actuator  251 - 1 , the actuator  251 - 4 , and the actuator  251 - 7  are in the rightmost column, and the actuator  251 - 3 , the actuator  251 - 6 , and the actuator  251 - 9  are in the leftmost column. 
     Note that hereinafter, a case where the seat surface  241  is used as the vibration presenting device  14  will be described as an example. Additionally, hereinafter, when it is not necessary to distinguish the actuators  251 - 1  to  251 - 9  individually, they are simply referred to as the actuator  251 . 
     &lt;Processing of Information Processing System  10 &gt; 
     Next, processing of the information processing system  10  will be described with reference to  FIGS. 6 to 12 . 
     &lt;Vibration Characteristic Analysis Processing&gt; 
     First, vibration characteristic analysis processing performed by the information processing system  10  will be described with reference to the flowchart of  FIG. 6 . 
     In step S 1 , the information processing system  10  measures a vibration characteristic of the actuator  251 . 
     Here, the vibration characteristic of the actuator  251  is a frequency characteristic represented by the amplitude and frequency of vibration generated by the actuator  251 . Then, the vibration characteristic of the actuator  251  changes depending on the load (pressure) applied to the actuator  251 . 
     For example,  FIG. 7  is a graph showing an example of change in the vibration characteristic of the actuator  251  caused by a load. The horizontal axis shows the frequency of vibration, and the vertical axis shows the acceleration of vibration. 
     For example, assume that the vibration characteristic of the actuator  251  when predetermined input data is input in a case where a person of a predetermined weight (hereinafter referred to as standard weight) is sitting on the seat surface  241  is designed as shown by curve C 1 . 
     In this case, for example, when a person lighter than the standard weight sits on the seat surface  241 , the load on the actuator  251  is reduced. As a result, the vibration characteristic of the actuator  251  changes as shown by curve C 2 . That is, the frequency at which the acceleration of vibration is maximized (resonance point) moves to the high frequency side. 
     On the other hand, for example, when a person heavier than the standard weight sits on the seat surface  241 , the load on the actuator  251  is increased. As a result, the vibration characteristic of the actuator  251  changes as shown by curve C 3 . That is, the resonance point of vibration moves to the low frequency side. 
     Hence, for example, the vibration characteristic analysis unit  171  measures the resonance point of vibration generated by the actuator  251  while varying the load of the actuator  251  in a state where predetermined input data is input to the actuator  251  on the basis of sensor data from the sensing unit  203  of the seat surface  241 . 
     In step S 2 , the information processing system  10  generates vibration characteristic data. 
     For example, the vibration characteristic analysis unit  171  classifies the vibration characteristic of the actuator  251  into multiple patterns on the basis of the measurement result in step S. For example, the vibration characteristic analysis unit  171  classifies the vibration characteristic of the actuator  251  into multiple patterns on the basis of the measurement result of the resonance point of vibration generated by the actuator  251 . Then, the vibration characteristic analysis unit  171  generates vibration characteristic data showing the classification result of the vibration characteristic pattern of the actuator  251 . 
       FIG. 8  shows an example of vibration characteristic data. In this example, the vibration characteristic of the actuator  251  is classified into multiple patterns depending on the load of the actuator  251 . For example, the vibration characteristic of the actuator  251  is classified into pattern A when the load (pressure) is in the range of 1 to 10 pascals. That is, when the load is in the range of 1 to 10 pascals, the resonance points of vibration generated by the actuator  251  are generally similar. Additionally, for example, the vibration characteristic of the actuator  251  is classified into pattern B when the load is in the range of 10 to 11 pascals. That is, when the load is in the range of 10 to 11 pascals, the resonance points of vibration generated by the actuator  251  are generally similar. In the range of other loads (not shown), too, the vibration characteristic pattern of the actuator  251  is classified on the basis of the load of the actuator  251 . 
     The vibration characteristic analysis unit  171  stores the vibration characteristic data in the storage unit  108 . 
     Note that in a case where the characteristics of the actuators  251  are similar, vibration characteristic data common to the actuators  251  is generated, for example. On the other hand, in a case where the characteristics of the actuators  251  are different, vibration characteristic data is generated for each actuator  251 , for example. Note that in the following, a case where the characteristics of the actuators  251  are similar will be described. 
     Thereafter, the vibration characteristic analysis processing is completed. 
     Note that while the above description describes an example in which the vibration characteristic analysis unit  171  generates vibration characteristic data, the user can generate vibration characteristic data on the basis of the measurement result of the vibration characteristic of the actuator  251 , for example. 
     &lt;Content Presenting Processing&gt; 
     Next, content presenting processing performed by the information processing system will be described with reference to the flowchart of  FIG. 9 . 
     In step S 101 , the user characteristic analysis unit  172  acquires user information. User information is input by the input unit  106  and supplied to the user characteristic analysis unit  172 , for example. 
     User information includes, for example, information related to physical characteristics of the user. Information related to physical characteristics of the user may be, for example, information that directly represents physical characteristics such as height, weight, and image, or may be information that can be used for estimating physical characteristics such as gender and age. Additionally, the user&#39;s image may be of any type as long as it is an image that shows physical characteristics of the user, such as a color image, an infrared image, and a 3D image. 
     In step S 102 , the user characteristic analysis unit  172  estimates the load of each actuator  251 . 
     A and B of  FIG. 10  show examples of a position where the user sits on the seat surface  241 . A of  FIG. 10  shows an example where the user is a child, and B of  FIG. 10  shows an example where the user is an adult. 
     In a case where the user is a child, he or she tends to sit at the front of the seat surface  241  since his or her body is small. Accordingly, the position where the user&#39;s body touches the seat surface  241  is in a range  261  at the front of the seat surface  241 . For this reason, almost no weight is applied to the actuators  251 - 7  to  251 - 9  at the back of the seat surface  241 . 
     On the other hand, in a case where the user is an adult, the position where the user&#39;s body touches the seat surface  241  is in a range  262  larger than the range  261 . Accordingly, the weight of the user is applied to the entire seat surface  241 . Note, however, that the weight of the user is not evenly applied to the actuators  251 , and varies depending on the position of the actuator  251 . 
     Hence, for example, the user characteristic analysis unit  172  estimates the position where the user sits on the seat surface  241  and the distribution of the user&#39;s weight on the seat surface  241  on the basis of the acquired user information. Then, the user characteristic analysis unit  172  estimates the load of each actuator  251  on the basis of the distribution of the user&#39;s weight on the seat surface  241 . 
       FIG. 11  is a graph showing the estimation result of the load of each actuator  251 . The vertical axis shows the load (pressure), and each bar graph shows an estimated value of the load of each actuator  251 . 
     In step S 103 , the user characteristic analysis unit  172  estimates the vibration characteristic of each actuator  251 . Specifically, the user characteristic analysis unit  172  estimates the vibration characteristic pattern of each actuator  251  on the basis of the estimation result of the load of each actuator  251  and the vibration characteristic data stored in the storage unit  108 . That is, the user characteristic analysis unit  172  obtains a vibration characteristic pattern corresponding to the estimated value of the load of each actuator  251  on the basis of the vibration characteristic data. The user characteristic analysis unit  172  generates a vibration characteristic map showing the vibration characteristic pattern of each actuator  251  and supplies it to the output control unit  162 . 
     In step S 104 , the vibration control unit  183  generates vibration control data on the basis of the vibration characteristic of each actuator  251 . Specifically, the vibration control unit  183  reads vibration data indicating the vibration to be presented together with the content from the removable medium  111  through the drive  110 . 
     In the vibration data, for example, the type of vibration (hereinafter referred to as vibration pattern) to be presented for each scene of the content is shown. Note that an arbitrary method may be used for dividing the content into scenes. Additionally, for example, multiple vibration patterns may be presented in combination in one scene. Moreover, vibration is not always presented in all scenes, and there may be scenes in which vibration is not presented. Hereinafter, a scene in which vibration is presented is referred to as a vibration presenting scene. 
     Additionally, the vibration control unit  183  reads vibration pattern data corresponding to the vibration pattern of each scene on the basis of the vibration data, from the tactile information database stored in the storage unit  108 . 
     Vibration pattern data corresponding to each vibration pattern is stored in the tactile information database. Vibration pattern data includes, for example, input data to be input to each actuator  251  in order to achieve vibration of the corresponding vibration pattern. Accordingly, by inputting each piece of input data included in the vibration pattern data to each actuator  251 , the actuator  251  vibrates, and vibration corresponding to the corresponding vibration pattern is achieved. 
     Note that the input data of each actuator  251  included in the vibration pattern data is not always the same data. For example, in a case where different vibrations are applied to each part of the user&#39;s body, different data is used as the input data of each actuator  251 . 
     Next, the vibration control unit  183  corrects the vibration pattern data of each scene on the basis of the vibration characteristic map, for example. For example, the vibration control unit  183  corrects the input data to each actuator  251  included in the vibration pattern data of each scene on the basis of the vibration characteristic pattern of each actuator  251 . 
     For example, the input data to each actuator  251  is designed for a predetermined vibration characteristic pattern (hereinafter, referred to as basic vibration characteristic pattern). Accordingly, the vibration control unit  183  corrects input data to an actuator  251  whose vibration characteristic pattern is different from the basic vibration characteristic pattern, so that a vibration similar to that when the vibration characteristic pattern is the basic vibration characteristic pattern is output. 
     For example, as schematically shown in A of  FIG. 12 , the amplitude and frequency of the waveform of the input data on the left side are corrected on the basis of the vibration characteristic pattern of the input destination actuator  251  on the right side. As a result, even if the vibration characteristic of each actuator  251  changes due to the load generated by the user, the vibration presented by each actuator  251  remains almost unchanged. 
     Note that multiple pieces of input data of each actuator  251  corresponding to each vibration pattern data may be prepared for each vibration characteristic pattern, for example. Then, for example, as shown schematically in B of  FIG. 12 , the vibration control unit  183  may read the input data corresponding to the vibration characteristic pattern of each actuator  251  from the tactile information database, and generate vibration pattern data on the basis of the read input data of each actuator  251 . 
     Then, the vibration control unit  183  generates vibration control data including the vibration pattern data of each vibration presenting scene. As a result, vibration control data is generated before the content is presented. 
     In step S 105 , the information processing system  10  presents vibration together with the content on the basis of the vibration control data. 
     Specifically, the display control unit  181 , the audio control unit  182 , and the vibration control unit  183  perform the following processing in synchronization with each other. 
     The display control unit  181  reads video data included in content data of the content to be presented from the removable medium  111  through the drive  110 , and supplies the video data to the display device  12  through the communication unit  109 . The display device  12  displays video based on the video data. 
     The audio control unit  182  reads audio data included in content data of the content to be presented from the removable medium  111  through the drive  110 , and supplies the audio data to the audio output device  13  through the communication unit  109 . The audio output device  13  outputs audio based on the audio data. 
     The vibration control unit  183  supplies vibration control data to the seat surface  241  through the communication unit  109 . Each actuator  251  of the seat surface  241  vibrates in each vibration presenting scene on the basis of the input data included in the vibration pattern data of the scene. 
     As a result, the vibration is presented to the user in association with the content. 
     Thereafter, the content presenting processing ends. 
     As described above, the vibration presented by each actuator  251  is corrected on the basis of the characteristic of the user and the position of each actuator  251 , or more specifically, on the basis of the load applied to each actuator  251  by the user. That is, the vibration presented by each actuator  251  is corrected (controlled) on the basis of the change in the vibration characteristic caused by the load applied to each actuator  251  by the user. This reduces the individual difference of the presented vibration, and vibration close to the design value is presented to the user regardless of the difference in the user. As a result, the individual difference in the user experience due to vibration is reduced, and an appropriate effect can be given to the user. 
     Additionally, auto-resonance for detecting the resonance point of the actuator  251  is time-consuming processing. Also, it takes more time to execute auto-resonance for all the actuators  251 . 
     On the other hand, by analyzing the vibration characteristic of the actuator  251  in advance and estimating the vibration characteristic of each actuator  251  on the basis of the vibration characteristic data showing the analysis result and the load of each actuator  251 , the processing time is shortened. 
     2. Second Embodiment 
     Next, a second embodiment of the present technology will be described with reference to  FIGS. 13 and 14 . 
     The second embodiment is different from the first embodiment in the content presenting processing. 
     &lt;Content Presenting Processing&gt; 
     Here, the content presenting processing of the second embodiment will be described by comparing the flowchart of  FIG. 13 . 
     In step S 151 , user information is acquired as in the processing of step S 101  of  FIG. 9 . 
     In step S 152 , a user characteristic analysis unit  172  estimates the load of each actuator  251  for each scene type. 
     Normally, the user changes his/her posture depending on the content while viewing the content. 
     For example, in a scene where a stimulus is given from the front such as being attacked by a zombie from the front or being shot, it is assumed that the user leans back and the center of gravity moves to the back. As a result, for example, it is assumed that the load is concentrated on a range  271  of A of  FIG. 14 , the load on the actuators  251  in the rear two rows increases, and the load on the actuators  251  in the front single row decreases. 
     Additionally, for example, in a scene where a stimulus is given from the left such as being attacked by a zombie from the left or a scene where the center of gravity is applied to the left such as curving sharply to the left, it is assumed that the user moves his or her body to the left and the center of gravity moves to the left. As a result, for example, it is assumed that the load is concentrated on a range  272  of B of  FIG. 14 , the load on the actuators  251  in the left two columns increases, and the load on the actuators  251  in the right single column decreases. 
     In this way, the distribution of the load of the actuator  251  changes as the user&#39;s posture changes depending on the content. Then, as the load of each actuator  251  changes, the vibration characteristic of each actuator  251  also changes. 
     Hence, the user characteristic analysis unit  172  assumes a general change in the posture of the user (movement of the user) for each scene type, and estimates the load of each actuator  251  on the basis of the assumed posture. 
     Note that an arbitrary method may be used for classifying the scene type. However, that it is desirable to classify the scene type on the basis of the tendency of the posture taken by the user. That is, it is desirable to classify the scene type so that there is a clear tendency of the posture taken by the user for each type of scene. 
     Specifically, the user characteristic analysis unit  172  estimates the load of each actuator  251  in the standard posture of the user by processing similar to that in step S 101  of  FIG. 9 . 
     Additionally, the user characteristic analysis unit  172  estimates the load of each actuator  251  for each scene type on the basis of the user&#39;s posture assumed for each scene type by using the load of each actuator  251  in the standard posture as a reference. 
     Here, the posture of the user assumed for each scene type is intended for a general user, and is set in advance by an experiment, a simulation, or the like, for example. Note that users may be classified into multiple groups according to age, gender, and the like, and the posture of the user for each scene type may be estimated for each group, for example. 
     In step S 153 , the user characteristic analysis unit  172  estimates the vibration characteristic of each actuator  251  for each scene type. Specifically, the user characteristic analysis unit  172  generates a vibration characteristic map for each scene type by processing similar to that of step S 103  of  FIG. 9 , on the basis of the load of each actuator  251  for each scene type. 
     In step S 154 , the user characteristic analysis unit  172  generates vibration control data based on the basis of the vibration characteristic of each actuator  251  for each scene type. Specifically, the user characteristic analysis unit  172  generates vibration control data by processing similar to that of step S 104  of  FIG. 9 . Note, however, that the user characteristic analysis unit  172  corrects or generates vibration pattern data of each vibration presenting scene using a vibration characteristic map corresponding to the scene type. 
     In step S 155 , as in the processing of step S 105  of  FIG. 9 , vibration is presented together with the content on the basis of the vibration control data. 
     As described above, the load of each actuator  251  is estimated for each scene of the content, and the vibration presented by each actuator  251  is corrected on the basis of the estimated load. More specifically, the load of each actuator  251  is estimated on the basis of the posture of the user assumed for each scene type, and the vibration presented by each actuator  251  is corrected on the basis of the estimated load. This reduces the individual difference in the presented vibration even more, and vibration close to the design value is presented to the user regardless of the difference in the user or the posture. As a result, the individual difference in the user experience due to vibration is further reduced, and a more appropriate effect can be given to the user. 
     3. Third Embodiment 
     Next, a third embodiment of the present technology will be described with reference to  FIG. 15 . 
     The third embodiment is different from the first and second embodiments in the content presenting processing. 
     &lt;Content Presenting Processing&gt; 
     Here, the content presenting processing of the third embodiment will be described with reference to the flowchart of  FIG. 15 . 
     In step S 201 , an information processing device  11  detects the load of each actuator  251 . For example, a user viewing the content sits on a seat surface  241  and takes a natural posture. In this state, a user characteristic analysis unit  172  detects the load of each actuator  251  on the basis of sensor data from a sensing unit  203  of the seat surface  241 . 
     Thereafter, in steps S 202  to S 204 , processing similar to that in steps S 103  to S 105  of  FIG. 9  is performed, and the content presenting processing ends. 
     As described above, the load applied to each actuator  251  by a user actually viewing the content is detected, and the vibration presented by each actuator  251  is corrected on the basis of the result. This reduces the individual difference in the presented vibration even more. 
     4. Fourth Embodiment 
     Next, a fourth embodiment of the present technology will be described with reference to  FIGS. 16 and 17 . 
     The fourth embodiment is different from the first to third embodiments in the content presenting processing. 
     &lt;Content Presenting Processing&gt; 
     Here, the content presenting processing of the fourth embodiment will be described with reference to the flowchart of  FIG. 16 . 
     In step S 251 , an information processing device  11  detects the load of each actuator  251  for each posture of the user. 
     For example, first, by processing similar to that in step S 201  of  FIG. 15 , the load of each actuator  251  is detected in a state where the user viewing the content sits on a seat surface  241  in a natural posture. 
     Next, for example, an information processing system  10  gives guidance to the user and asks the user to take various postures while sitting on the seat surface  241 . 
     For example, a display device  12  displays a guidance screen as shown in A to C of  FIG. 17  under the control of a display control unit  181  through a communication unit  109 , and asks the user to take various postures. A of  FIG. 17  is an example of a guidance screen giving an instruction to shift the user&#39;s weight backward. B of  FIG. 17  is an example of a guidance screen giving an instruction to lean fully against the back of the chair provided with the seat surface  241 . C of  FIG. 17  is an example of a guidance screen giving an instruction to place both hands on the table in front of the chair provided with the seat surface  241 . 
     A user characteristic analysis unit  172  detects the load of each actuator  251  on the basis of sensor data from a sensing unit  203  of the seat surface  241  in each posture. 
     In step S 252 , the user characteristic analysis unit  172  estimates the vibration characteristic of each actuator  251  for each posture of the user. That is, the user characteristic analysis unit  172  generates a vibration characteristic map for each posture of the user by processing similar to that in step S 103  of  FIG. 9  on the basis of the detected value of the load of each actuator  251  in each posture. 
     In step S 253 , the user characteristic analysis unit  172  generates vibration control data on the basis of the vibration characteristic of each actuator  251  for each posture of the user. Specifically, the user characteristic analysis unit  172  generates vibration control data by processing similar to that of step S 104  of  FIG. 9 . Note, however, that the user characteristic analysis unit  172  corrects or generates vibration pattern data for each vibration presenting scene by using the vibration characteristic map corresponding to the posture of the user assumed in the scene type. 
     In step S 254 , as in the processing of step S 105  of  FIG. 9 , vibration is presented together with the content on the basis of the vibration control data. 
     As described above, the load applied to each actuator  251  is detected for each posture of a user actually viewing the content, and vibration presented by each actuator  251  is corrected on the basis of the result. This further reduces the difference in the presented vibration due to the difference in the user and the posture. 
     5. Fifth Embodiment 
     Next, a fifth embodiment of the present technology will be described with reference to  FIG. 18 . 
     The fifth embodiment is different from the first to fourth embodiments in the content presenting processing. 
     &lt;Content Presenting Processing&gt; 
     Here, the content presenting processing of the fifth embodiment will be described with reference to the flowchart of  FIG. 18 . 
     In step S 301 , an information processing device  11  detects the load of each actuator  251  for each scene type. 
     For example, a storage unit  108  of the information processing device  11  stores content data for presenting calibration content. Calibration content is, for example, content including sample video and sample audio of each type of scene. 
     Then, a display device  12  displays the video of the calibration content under the control of a display control unit  181  through a communication unit  109 . An audio output device  13  outputs the audio of the calibration content under the control of an audio control unit  182  through the communication unit  109 . 
     A user characteristic analysis unit  172  detects the load applied to each actuator  251  by the user when each type of scene is presented, on the basis of sensor data from a sensing unit  203  of a seat surface  241 . That is, the user characteristic analysis unit  172  detects the load of each actuator  251  for each scene type. 
     Thereafter, in steps S 302  to S 304 , processing similar to that in steps S 153  to S 155  of  FIG. 13  is performed. 
     As described above, the load applied to each actuator  251  when the user actually viewing the content views each type of scene is detected, and the vibration presented by each actuator  251  is corrected on the basis of the result. This further reduces the difference in the presented vibration due to the difference in the user and the scene. 
     6. Sixth Embodiment 
     Next, a sixth embodiment of the present technology will be described with reference to  FIG. 19 . 
     The sixth embodiment is different from the first to fifth embodiments in the content presenting processing. 
     &lt;Content Presenting Processing&gt; 
     Here, the content presenting processing of the sixth embodiment will be described with reference to the flowchart of  FIG. 19 . 
     In step S 351 , as in the processing of step S 251  of  FIG. 16 , the load of each actuator  251  is detected for each posture of the user. 
     In step S 352 , as in the processing of step S 252  of  FIG. 16 , the vibration characteristic of each actuator  251  is estimated for each posture of the user. 
     In step S 353 , an information processing system  10  starts presenting the content. 
     Specifically, a display control unit  181 , an audio control unit  182 , and a vibration control unit  183  start the following processing in synchronization with each other. 
     The display control unit  181  reads video data included in content data to be presented from a removable medium  111  through a drive  110 , and starts processing of supplying the video data to a display device  12  through a communication unit  109 . The display device  12  starts displaying video based on the video data. 
     The audio control unit  182  reads audio data included in content data to be presented from the removable medium  111  through the drive  110 , and starts processing of supplying the audio data to an audio output device  13  through the communication unit  109 . The audio output device  13  starts outputting audio based on the audio data. 
     The vibration control unit  183  starts processing of reading vibration data indicating vibration to be presented in association with the content from the removable medium  111  through the drive  110 . 
     In step S 354 , the vibration control unit  183  determines whether it is the timing to present vibration on the basis of the vibration data. If it is determined that it is the timing to present the vibration, the processing proceeds to step S 355 . 
     In step S 355 , the vibration control unit  183  estimates the posture of the user in the next vibration presenting scene. 
     For example, the vibration control unit  183  estimates the posture of the user on the basis of the type of the next vibration presenting scene. 
     For example, if the next vibration presenting scene is a scene of a type that has not been presented before, the vibration control unit  183  estimates that a posture assumed beforehand that the user will take for that type of vibration presenting scene is the posture of the user in the next vibration presenting scene. 
     On the other hand, if the next vibration presenting scene is a scene of a type that has been displayed before, the vibration control unit  183  estimates the posture of the user in the next vibration presenting scene on the basis of the history of postures taken by the user in the past in that type of scene. As a result, it possible to accurately estimate the user&#39;s posture even when the user takes a posture different from the assumed posture. 
     In step S 356 , the vibration control unit  183  generates vibration control data on the basis of the estimated posture. Specifically, the vibration control unit  183  corrects or generates vibration pattern data of the next vibration presenting scene by processing similar to that in step S 104  of  FIG. 9  on the basis of the vibration characteristic map corresponding to the estimated posture. The vibration control unit  183  generates vibration control data including the corrected or generated vibration pattern data. That is, in this embodiment, vibration control data is dynamically generated during the presentation of the content. 
     In step S 357 , the information processing system  10  presents vibration on the basis of the vibration control data. Specifically, in the next vibration presenting scene, the vibration control unit  183  supplies the vibration control data to a seat surface  241  through a communication unit  109  in synchronization with the display control unit  181  and the audio control unit  182 . Each actuator  251  of the seat surface  241  presents vibration on the basis of each piece of input data in vibration pattern data included in the vibration control data. 
     As a result, vibration is presented together with video and audio in the vibration presenting scene. 
     Thereafter, the processing proceeds to step S 358 . 
     On the other hand, if it is determined in step S 354  that it is not the timing to present the vibration, the processing of steps S 355  to S 357  is skipped, and the processing proceeds to step S 358 . 
     In step S 358 , an output control unit  162  determines whether or not the content has ended. If it is determined that the content has not ended yet, the processing returns to step S 354 . 
     Thereafter, in step S 358 , the processing of steps S 354  to S 358  is repeatedly performed until it is determined that the content has ended. 
     On the other hand, if it is determined in step S 358  that the content has ended, the content presenting processing ends. 
     As described above, the load applied to each actuator  251  when the user actually viewing the content views each type of scene is detected, and the posture taken by the user is estimated in real time. On the basis of the result, the vibration presented by each actuator  251  is corrected. This further reduces the difference in the presented vibration due to the difference in the user and the scene. 
     7. Seventh Embodiment 
     Next, a seventh embodiment of the present technology will be described with reference to  FIG. 20 . 
     The seventh embodiment is different from the first to sixth embodiments in the content presenting processing. 
     &lt;Content Presenting Processing&gt; 
     Here, the content presenting processing of the seventh embodiment will be described with reference to the flowchart of  FIG. 20 . 
     In step S 401 , as in the processing of step S 353  of  FIG. 19 , the presentation of the content is started. 
     In step S 402 , as in the processing of step S 354  of  FIG. 19 , it is determined whether or not it is the timing to present vibration. If it is determined that it is the timing to present the vibration, the processing proceeds to step S 403 . 
     In step S 403 , as in the processing of step S 201  of  FIG. 15 , the load of each actuator  251  is detected. 
     In step S 404 , as in the processing of step S 202  of  FIG. 15 , the vibration characteristic of each actuator  251  is estimated and a vibration characteristic map is generated. 
     In step S 405 , a vibration control unit  183  generates vibration control data on the basis of the vibration characteristic of each actuator  251 . Specifically, the vibration control unit  183  corrects or generates vibration pattern data of the next vibration presenting scene by processing similar to that in step S 104  of  FIG. 9  on the basis of the generated vibration characteristic map. The vibration control unit  183  generates vibration control data including the corrected or generated vibration pattern data. That is, in this embodiment, vibration control data is dynamically generated during the presentation of the content. 
     In step S 406 , as in the processing of step S 357  of  FIG. 19 , vibration is presented on the basis of the vibration control data. 
     Thereafter, the processing proceeds to step S 407 . 
     On the other hand, if it is determined in step S 402  that it is not the timing to present the vibration, the processing of steps S 403  to S 406  is skipped, and the processing proceeds to step S 407 . 
     In step S 407 , as in the processing of step  3358  of  FIG. 19 , it is determined whether or not the content has ended. If it is determined that the content has not ended yet, the processing returns to step S 402 . 
     Thereafter, in step S 407 , the processing of steps S 402  to S 407  is repeatedly performed until it is determined that the content has ended. 
     On the other hand, if it is determined in step S 407  that the content has ended, the content presenting processing ends. 
     As described above, the load of each actuator  251  is detected in real time, and the vibration presented by each actuator  251  is corrected on the basis of the detection result. This further reduces the difference in the presented vibration due to the difference in the user and the posture. 
     8. Modification 
     Hereinafter, modifications of the above-described embodiments of the present technology will be described. 
     For example, as shown in  FIG. 21 , the vibration characteristic pattern of the actuator  251  may be classified on the basis not only of the load but also of the resonance point. That is, the vibration characteristic pattern of the actuator  251  may be classified on the basis of a combination of the load and the resonance point. 
     In this case, for example, when the user is sitting on the seat surface  241 , the resonance point is detected in addition to the load for each actuator  251 . Then, the pattern of the vibration characteristic of each actuator  251  is estimated on the basis of the combination of the load and the resonance point. As a result, the vibration presented by each actuator  251  can be corrected on the basis of a more accurate vibration characteristic of each actuator  251 . 
     Additionally, for example, vibration characteristic data may be generated by performing the vibration characteristic analysis processing of  FIG. 6  in a state where the user actually viewing the content is taking each posture. 
     In this case, for example, the vibration characteristic pattern is classified according to the posture of the user and the position of the actuator  251 . For example, the vibration characteristic pattern in each posture of the actuators  251 - 1  to  251 - 9  is defined in the vibration characteristic data. Accordingly, the vibration characteristic pattern of each actuator  251  is specified by the posture of the user and the position of the actuator  251 . As a result, the vibration presented by each actuator  251  can be corrected on the basis of a more accurate vibration characteristic of each actuator  251 . 
     Moreover, for example, in the sixth embodiment of  FIG. 19 , the posture of the user may be detected on the basis of a captured image or the like of the user, and vibration control data may be generated on the basis of the detected posture. 
     Additionally, for example, the load of each actuator  251  may be detected by a method other than pressure. For example, input data of a sine wave may be input to each actuator  251  and the load of each actuator  251  may be detected on the basis of the acceleration of each actuator  251  in that state. 
     Moreover, for example, the vibration data may include input data of each actuator  251  in each vibration presenting scene. Then, for example, the user characteristic analysis unit  172  may generate vibration control data by correcting the input data of each actuator  251  included in the vibration data on the basis of the vibration characteristic map. 
     Additionally, the configuration of the information processing system  10  is changeable. For example, the information processing device  11  may include the vibration presenting device  14 . Alternatively, for example, the vibration presenting device  14  may include all or some of the functions of the information processing device  11 . For example, the vibration presenting device  14  may include the analysis unit  161  and the vibration control unit  183  of  FIG. 3 . 
     Moreover, for example, the vibration presented by each actuator  251  may be corrected by moving each actuator  251  and changing the arrangement on the basis of the load of each actuator  251 . For example, when the user is sitting on the seat surface  241 , each actuator  251  is moved to a position where the load is within the expected range. 
     Additionally, for example, the vibration presented by each actuator  251  may be corrected by controlling both the vibration and the position of each actuator  251 . 
     Moreover, the content to be presented does not necessarily have to include both video and audio, and may include only one. 
     9. Other 
     &lt;Method of Providing Software, and Other&gt; 
     The above-described series of processing may be performed by hardware or software. In a case where the series of processing is performed by software, a program that is included in the software is installed on the information processing device  11 . 
     In the information processing device  11 , for example, the CPU  101  loads a program recorded in the storage unit  108  to the RAM  103  through the input/output interface  105  and the bus  104 , and executes the above-described series of processing. 
     The program executed by the information processing device  11  (CPU  101 ) can be provided by being recorded on the removable medium  111  as a package medium or the like, for example. Additionally, the program can be provided through a wired or wireless transmission medium such as a local area network, the Internet, or digital satellite broadcasting. 
     In the information processing device  11 , the program can be installed in the storage unit  108  through the input/output interface  105  by attaching the removable medium  111  to the drive  210 . Additionally, the program can be received by the communication unit  109  through a wired or wireless transmission medium and be installed in the storage unit  108 . In addition, the program can be installed in advance in the ROM  102  or the storage unit  108 . 
     Note that the program executed by the information processing device  11  may be a program that performs processing in chronological order according to the order described in the present specification, or a program that performs processing in parallel, or at a necessary timing such as when a call is made. 
     Additionally, in the present specification, a system means a collection of multiple components (devices, modules (parts), and the like), and it does not matter whether or not all the components are in the same case. Accordingly, multiple devices housed in separate cases and connected through a network, and one device housing multiple modules in one case are both systems. 
     Moreover, the embodiment of the present technology is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present technology. 
     For example, the present technology can have a cloud computing configuration in which one function is shared and processed by multiple devices through a network. 
     Additionally, each step described in the above-described flowchart can be executed by one device or be executed in a shared manner by multiple devices. 
     Moreover, in a case where multiple processes are included in one step, the multiple processes included in one step can be executed by one device or be executed in a shared manner by multiple devices. 
     &lt;Exemplary Combination of Configuration&gt; 
     The present technology can also be configured as follows. 
     (1) 
     An information processing device including 
     a vibration control unit that individually controls vibration presented to a user in association with a content by each of a plurality of vibration presenting units on the basis of a characteristic of the user and positions of the vibration presenting units. 
     (2) 
     The information processing device according to (1) above, in which 
     the vibration control unit controls the vibration presented by each of the vibration presenting units on the basis of a load applied to each of the vibration presenting units by the user. 
     (3) 
     The information processing device according to (2) above further including 
     a user characteristic analysis unit that analyzes the load of each of the vibration presenting units. 
     (4) 
     The information processing device according to (3) above, in which 
     the user characteristic analysis unit estimates the load of each of the vibration presenting units on the basis of user information regarding the user. 
     (5) 
     The information processing device according to (4) above, in which 
     the user characteristic analysis unit estimates the load of each of the vibration presenting units for each scene of the content on the basis of the user information, and 
     the vibration control unit controls the vibration presented by each of the vibration presenting units on the basis of the load of each of the vibration presenting units for each scene of the content. 
     (6) 
     The information processing device according to (5) above, in which 
     the user characteristic analysis unit estimates the load of each of the vibration presenting units on the basis of a scene type of the content. 
     (7) 
     The information processing device according to any one of (4) to (6) above, in which 
     the user information includes information related to a physical characteristic of the user. 
     (8) 
     The information processing device according to (3) above, in which 
     the user characteristic analysis unit detects the load of each of the vibration presenting units on the basis of sensor data. 
     (9) 
     The information processing device according to (8) above, in which 
     the user characteristic analysis unit detects the load of each of the vibration presenting units in each posture of the user, and 
     the vibration control unit controls the vibration presented by each of the vibration presenting units on the basis of the posture of the user. 
     (10) 
     The information processing device according to (9) above, in which 
     the user characteristic analysis unit estimates a posture of the user for each scene of the content, and 
     the vibration control unit controls the vibration presented by each of the vibration presenting units on the basis of the estimated posture of the user. 
     (11) 
     The information processing device according to (8) above, in which 
     the user characteristic analysis unit detects the load of each of the vibration presenting units for each scene type of the content, and 
     the vibration control unit controls the vibration presented by each of the vibration presenting units on the basis of the load of each of the vibration presenting units for each scene of the content. 
     (12) 
     The information processing device according to any one of (3) to (11) above, in which 
     the user characteristic analysis unit estimates a vibration characteristic of each of the vibration presenting units on the basis of the load of each of the vibration presenting units, and 
     the vibration control unit controls the vibration presented by each of the vibration presenting units on the basis of the vibration characteristic of each of the vibration presenting units. 
     (13) 
     The information processing device according to (12) above further including 
     a vibration characteristic analysis unit that analyzes the vibration characteristic of each of the vibration presenting units, in which 
     the user characteristic analysis unit estimates the vibration characteristic of each of the vibration presenting units on the basis of the load of each of the vibration presenting units and the analysis result of the vibration characteristic of each of the vibration presenting units. 
     (14) 
     The information processing device according to any one of (3) to (13) above, in which 
     before presenting the content, the vibration control unit generates vibration control data used for controlling the vibration presented by each of the vibration presenting units on the basis of the analysis result of the load of each of the vibration presenting units. 
     (15) 
     The information processing device according to any one of (1) to (14) above, in which 
     the vibration control unit controls an amplitude and a frequency of the vibration presented by each of the vibration presenting units. 
     (16) 
     The information processing device according to any one of (1) to (15) above, in which 
     the content includes at least one of video or audio. 
     (17) 
     The information processing device according to any one of (1) to (16) above, in which 
     a vibration presenting device including the plurality of vibration presenting units is a device that supports the user&#39;s body, a device worn by the user, or a device operated by the user. 
     (18) 
     The information processing device according to (17) above further including 
     the vibration presenting device. 
     (19) 
     An information processing method including individually controlling, by an information processing device, vibration presented to a user in association with a content by each of a plurality of vibration presenting units on the basis of a characteristic of the user and positions of the vibration presenting units. 
     (20) 
     A computer-readable recording medium that records a program to perform processing of 
     individually controlling vibration presented to a user in association with a content by each of a plurality of vibration presenting units on the basis of a characteristic of the user and positions of the vibration presenting units. 
     Note that the effect described in the present specification is merely an illustration and is not restrictive. Hence, other effects can be obtained. 
     REFERENCE SIGNS LIST 
     
         
           10  Information processing system 
           11  Information processing device 
           12  Display device 
           13  Audio output device 
           14  Vibration presenting device 
           101  CPU 
           151  Information processing unit 
           161  Analysis unit 
           162  Output control unit 
           171  Vibration characteristic analysis unit 
           172  User characteristic analysis unit 
           181  Display control unit 
           182  Audio control unit 
           183  Vibration control unit 
           202 - 1  to  202 - n  Vibration presenting unit 
           203  Sensing unit 
           241  Seat surface 
           251 - 1  to  251 - 9  Actuator