JP2011040867A - Information processing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To accurately detect motions that are intended by a user, from among the motions given to a portable device. <P>SOLUTION: The portable device executes processing corresponding to a motion, when there is the motion of a case caused by the user's intended operation of the case, and does not execute processing corresponding to a motion, when there is the motion of the case caused not by the user's intended operation of the case by performing determination not only by the aspect of a change in acceleration in accordance with a motion of the case but also by the sound of the user's operation of the case, with respect to determination for performing various processing items. Consequently, since a motion intended by the user can be detected with high accuracy to execute corresponding processing, even if there are motions similar to those of the case, malfunctions due to a motion unintended by the user is reduced. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a technique for executing various processes by detecting movement of a casing.

In a terminal such as a mobile phone, there is a technique for detecting a movement of a terminal using an acceleration sensor or the like, and executing a process corresponding to the movement when a specific movement is given by a user. Although such a technique can improve the convenience of the user's terminal operation, the malfunction may occur due to an unintended operation due to the detection accuracy.
Therefore, development for preventing malfunction has also been performed (for example, Patent Document 1).

JP 2007-193908 A

  In the technique disclosed in Patent Document 1, although the detection accuracy can be improved, whether the user intentionally moved the terminal or whether the terminal moved unintentionally Can't judge. For example, whether the movement detected in this way is detected by the user deliberately moving the terminal by hand, or the terminal in the pocket is linked to the user's own movement. It cannot be determined whether the motion is detected in a state not intended by the user. That is, if the movements are the same as a result, the movement of the terminal is detected and the corresponding process is executed even if it is intended or not intended.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to accurately detect a movement due to a user's intention among movements given to a housing.

  In order to solve the above-mentioned problem, the present invention measures the acceleration of the housing and outputs a measurement signal indicating the measured acceleration, and the sound input to the microphone provided in the housing. An audio signal output means for outputting an audio signal indicating, and an audio signal indicated by the audio signal output from the audio signal output means during a period when the acceleration indicated by the measurement signal output from the measurement signal output means changes in a specific manner. A determination unit that determines whether a feature amount satisfies a condition corresponding to the specific mode; and an execution unit that executes a process according to the specific mode when the determination unit determines that the condition is satisfied. An information processing apparatus characterized by comprising:

  In another preferable aspect, the change in the specific aspect indicates a change in acceleration indicated by the measurement signal output by the measurement signal output means when the casing is hit in a specific manner. Yes, the voice feature amount is a volume level of the voice, and the determination unit is configured such that when the volume level of the voice indicated by the voice signal is equal to or higher than a specific level at any timing of the period, It is determined that the condition is satisfied.

  In another preferable aspect, the change in the specific aspect indicates a change in acceleration indicated by the measurement signal output by the measurement signal output means when the casing is hit in a specific manner. And the feature amount of the sound is a volume level of the sound, and the determination unit uses the sound volume level indicated by the sound signal before the period as a reference at any timing in the period. When the amount of increase in the volume level of the sound indicated by the signal exceeds a specific amount, it is determined that the condition is satisfied.

  The present invention also measures measurement signal output means for measuring the acceleration of the housing and outputting a measurement signal indicating the measured acceleration, and outputs a sound signal indicating the sound input to the microphone provided in the housing. A change in the feature amount of the voice indicated by the voice signal output from the voice signal output means during a period in which the acceleration indicated by the measurement signal output from the voice signal output means and the measurement signal output means changes in a specific manner; A determination unit that determines whether a temporal correlation with a change in a specific mode is a specific correlation, and when the determination unit determines that the specific correlation is the specific correlation, it corresponds to the specific mode Provided is an information processing apparatus comprising execution means for executing processing.

  In another preferable aspect, the microphone is provided so that sound in a specific direction of the housing is input, and the change in the specific aspect includes a change in the specific direction component of acceleration. It is characterized by.

  ADVANTAGE OF THE INVENTION According to this invention, the thing by a user's intention can be accurately detected among the movements given to the housing | casing.

It is a block diagram which shows the structure of the portable apparatus which concerns on embodiment of this invention. It is an external view of the portable apparatus which concerns on embodiment of this invention. It is a figure explaining an example of the process corresponding | compatible table which concerns on embodiment of this invention. It is a flowchart which shows the flow of the detection process which concerns on embodiment of this invention. It is a figure explaining the specific example of the detection process which concerns on embodiment of this invention. It is a block diagram which shows the structure of the detection function which concerns on embodiment of this invention. 10 is a block diagram illustrating a configuration of a mobile device according to Modification Example 1. FIG. 10 is an external view of a mobile device according to Modification Example 1. FIG. It is a figure explaining an example of the process corresponding | compatible table which concerns on the modification 2. FIG. 10 is a flowchart showing a flow of detection processing according to Modification 2.

<Embodiment>
FIG. 1 is a block diagram illustrating a configuration of a portable device 1 that is an example of an information processing device according to an embodiment of the present invention. FIG. 2 is an external view of the mobile device 1. The mobile device 1 is, for example, a mobile device such as a mobile phone or a PDA (Personal Digital Assistant), and as shown in FIG. 1, a control unit 11, a storage unit 12, an operation unit 13, a display unit 14, and an audio processing unit. 15, the acceleration measuring unit 16 and the interface 17 are connected to each other via a bus. In addition, a speaker 151 and a microphone 152 are connected to the audio processing unit 15.

  Each of these units is housed in the housing 10, and in this example, as shown in FIG. 2, the display screen of the display unit 14, the operation element of the operation unit 13, the speaker 151, and the microphone 152 are arranged on the front of the housing 10. Is provided. The connection terminal of the interface 17 is provided on the side surface of the housing 10. Hereinafter, the configuration of each unit of the mobile device 1 will be described.

[Constitution]
The control unit 11 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. The CPU loads the control program stored in the ROM into the RAM and executes it, thereby controlling each part of the mobile device 1 via the bus, such as a call function and an e-mail transmission / reception function used in the mobile phone. In addition, the detection function described later is realized. The RAM functions as a work area when the CPU processes each data.

The operation unit 13 has operation elements such as operation buttons arranged on the front surface of the housing 10. When the user operates the operation buttons, data representing the operation content is output to the control unit 11. For example, power on / off, various setting instructions, and the like are performed by operations.
The display unit 14 is a display device such as a liquid crystal display that displays an image on a display screen arranged in front of the housing 10. The display unit 14 displays an image on the display screen under the control of the control unit 11. The displayed images displayed on the display screen are images such as a menu screen and a setting screen, as well as an application operation screen.
Note that the operation element of the operation unit 13 may include a touch panel provided on the display screen of the display unit 14.

The audio processing unit 15 is a means for processing data relating to input audio such as a DSP (Digital Signal Processor). The audio processing unit 15 performs D / A (digital-analog) conversion on audio data input under the control of the control unit 11 and outputs sound related to the audio data from the speaker 151. On the other hand, an audio signal corresponding to the audio input by the microphone 152 is input to the audio processing unit 15, A / D (analog-digital) converted by the audio processing unit 15, and output to the control unit 11 as audio data. .
As described above, the voice data related to the voice input by the microphone 152 is transmitted to the communication partner via the communication means of the interface 17 shown below when realizing the call function of the mobile phone, which will be described later. In the detection process, it is treated as an audio measurement signal. In the detection process, the control unit 11 analyzes the voice feature quantity from the voice measurement signal, and acquires the temporal change of the feature quantity. In this example, the audio feature amount is a volume level, but may be a frequency distribution or the like, and may be any physical amount that indicates the audio feature.

The acceleration measuring unit 16 is an acceleration sensor, for example, and outputs a signal indicating the acceleration caused by the movement given to the housing 10. In this example, a signal indicating an acceleration in each of the three-dimensional directions (a signal having an output level corresponding to the acceleration) is output, and the control unit 11 acquires and analyzes the signal to analyze each direction of the housing 10. By separating into components (x, y, z directions in FIG. 2), it is possible to measure a temporal change in the magnitude of acceleration generated in each direction. In this example, the x, y, and z directions correspond to the front direction, the side surface direction, and the top surface direction of the housing 10, respectively, as shown in FIG.
The temporal change of the acceleration measured in this way is treated as an operation measurement signal corresponding to each direction in the detection process described later.

  The interface 17 is, for example, a connection terminal for wired connection with an external device, a wireless connection means for wireless connection, a communication means for connection via a base station, a network, or the like, and transmits and receives various data to and from the connected external device. .

  The storage unit 12 is, for example, a storage unit such as a non-volatile memory, and stores a processing correspondence table, a program for operating an application, various data used during execution of the program, the above-described control program, and the like. ing. The storage unit 12 may be a storage unit such as an external non-volatile memory connected via a connection interface or the like.

FIG. 3 is an explanatory diagram showing an example of the processing correspondence table. As shown in FIG. 3, the processing correspondence table shows the movement of each processing (processing A, B, C,...) Executed by moving the housing 10 during execution of a control program or the like. Of the movement measurement signal corresponding to the pattern (patterns A, B, C,...) And the feature amount of the voice indicated by the voice measurement signal in the period indicating the change mode (in this example, as described above) Conditions (conditions A, B, C,...) That should be satisfied in the change in volume level are registered in association with each other.
This condition is necessary in order to detect a change in the audio measurement signal when a sound that is likely to be generated is input from the microphone 152 due to a user's operation when giving movement in a specific manner to the housing 10. It is stipulated as something. For example, if the user's operation when moving the housing 10 is to strike the housing 10 once, a sound is generated by the action, and thus the sound is input from the microphone 152. In addition, the minimum level that the volume level related to the audio measurement signal will reach may be indicated.
Note that the feature amount of the voice measurement signal to be analyzed may be different depending on this condition. For example, when the condition is determined by the frequency distribution, the feature amount of the voice measurement signal to be analyzed may be the frequency distribution.
Further, the process executed by moving the housing 10 does not indicate a detection process described later, but indicates a process in which the control unit 11 executes various programs, a process performed during the execution, and the like. For example, any process that can be realized in the mobile device 1 such as a call start / end process, an e-mail opening process, and a television viewing start process may be used.
The above is the description of the configuration of each unit of the mobile device 1.

[Operation]
Next, a detection process performed when the detection function is realized by the control unit 11 executing the control program will be described with reference to FIG. The detection process is not realized by executing the control program, but all or part of each process may be realized by hardware.

FIG. 4 is a flowchart showing the flow of the detection process. First, when the detection process is started, the control unit 11 starts recording of the operation measurement signal and the audio measurement signal (step S110), and the FIFO of the control unit 11 in the FIFO (First-In First-Out) format. Buffer the signal for a certain period.
The control unit 11 compares the mode of acceleration change indicated by the buffered motion measurement signal with each pattern (pattern A, B, C,...) Registered in the processing correspondence table, and performs processing. The determination as to whether a pattern corresponding to any of the patterns registered in the correspondence table is detected in the motion measurement signal is continued until the pattern is detected (step S120; No). The detection of the corresponding pattern may be performed when the motion measurement signal indicates a complete match with the pattern in the processing correspondence table, or may be detected when a certain error is allowed and within the allowable error. Further, a relative difference in output level may be allowed. That is, if both the change patterns are in a similar relationship, they may be matched. In the following description, a case where these relationships are satisfied is described as a pattern matching.

  When the corresponding pattern is detected (step S120; Yes), the control unit 11 performs the audio processing unit 15 during the period in which the motion measurement signal changing in the form of the detected pattern is output from the acceleration measurement unit 16. Is read out (step S130), and the temporal change in the volume level (feature value) of the sound measurement signal is analyzed. Instead of buffering the audio measurement signal in step S110, the feature amount may be analyzed in advance and the feature amount may be buffered.

And the control part 11 specifies the conditions of the audio | voice measurement signal corresponding to the detected pattern from a process corresponding | compatible table, and determines whether the change of the volume level in the period satisfy | fills this specified condition (step S140). .
If the specified condition is not satisfied (step S140; No), it is determined that the pattern is detected in the motion measurement signal is not due to an operation performed by the user, and the process returns to step S120 and processed. Continue.
On the other hand, when the specified condition is satisfied (step S140; Yes), it is determined that the pattern is detected in the motion measurement signal due to an operation performed by the user. Then, a process corresponding to the detected pattern (corresponding to the condition of the audio measurement signal) is identified from the process correspondence table, the identified process is executed (step S150), and the process returns to step S120 to continue the process.
The above is the description of the detection process. Next, the detection process will be described along a specific example of the feature amount related to the motion measurement signal and the voice measurement signal.

FIG. 5 is a diagram illustrating a specific example of detection processing. The upper part of FIG. 5 shows the temporal change of the output level Pa of the motion measurement signal in the x direction (the higher the output level Pa, the higher the acceleration), and the lower part of FIG. 5 shows the volume level (feature value) related to the voice measurement signal. Shows the change over time. The horizontal axis indicates time t, and the time axes are the same. An example of this signal is when the user strikes the housing 10 once in the x direction.
The control unit 11 determines that a pattern (in this example, pattern B) registered in the processing correspondence table is detected from the change in the output level Pa of the motion measurement signal when time t1 has elapsed. (FIG. 4, step S120; Yes). The determined pattern is a range from time t0 to t1, and this range is referred to as a corresponding period Ts.

And the control part 11 reads the audio | voice measurement signal in corresponding | compatible period Ts (FIG. 4 step S130), and analyzes the temporal change of the volume level Ps. Further, the control unit 11 refers to the processing correspondence table and specifies the condition B corresponding to the pattern B.
This condition B is that the volume level Ps becomes L1 or more at any timing of the corresponding period Ts. Such conditions may be determined relatively. For example, the average volume level in the period before the corresponding period Ts (a fixed time before time t0) is calculated (L0 in this example), and the volume level increased by a certain level with reference to the volume level is set as L1. Good. This makes it easier to determine the sound generated by the user's operation even if the sound (for example, the environmental sound) that does not depend on the user's operation has a certain volume level.

As shown in FIG. 5, since the volume level Ps is equal to or higher than L1 in the corresponding period Ts, the control unit 11 determines that the change in the volume level Ps satisfies the condition B (step S140 in FIG. 4; Yes). . And the control part 11 specifies the process B corresponding to the pattern B with reference to a process table, and performs the process B (FIG. 4, step S150).
At this time, when the pattern B is detected in the motion measurement signal without the user hitting the casing 10 and operating, the change in the volume level Ps does not satisfy the condition B, so that the process B is not executed. . The above is a description of a specific example of the detection process.

  FIG. 6 is a block diagram illustrating the configuration of the detection function. As described above, the detection function is realized by the control unit 11 executing the control program, and includes the buffer 111, the determination unit 112, and the execution unit 113. As described above, the buffer 111 buffers the audio measurement signal and the operation measurement signal for a certain period. The determination unit 112 is in charge of the above-described operations from step S110 to S140, and the execution unit 113 is in charge of the operation of step S150.

As described above, the mobile device 1 according to the embodiment of the present invention determines whether to perform various types of processing for not only the change in acceleration due to the movement of the housing 10 but also the sound generated by the user's operation of the housing 10. In addition, when there is a movement of the casing 10 caused by a user's intended operation, the process corresponding to the movement is executed and the user's casing 10 is intended. If there is a movement of the casing 10 that occurs regardless of the operation, the process corresponding to the movement is not executed.
As a result, even if there is a similar movement of the housing 10, it is possible to accurately detect a thing intended by the user and execute a corresponding process, thereby reducing malfunction caused by a thing not intended by the user. can do.

<Modification>
As mentioned above, although embodiment of this invention was described, this invention can be implemented in various aspects as follows.
[Modification 1]
In the above-described embodiment, the number of the microphones 152 is one, and both the input of the sound related to the sound measurement signal and the input of the sound related to the call are used. However, the microphones 152-1 and 152-2 are used. It is good also as 1A of portable apparatuses. The configuration and appearance of the portable device 1A in this case are shown in FIGS. 7 and 8, respectively.

  FIG. 7 is a block diagram illustrating a configuration of a mobile device 1A according to the first modification. FIG. 8 is an external view of a portable device 1A according to the first modification. As shown in FIG. 8A, the external appearance of the mobile device 1A from the front direction is the same as that of the mobile device 1 in the embodiment (the microphone 152 in the embodiment corresponds to the microphone 152-1 in the first modification). However, when viewed in the direction of the arrow AR1 (see FIG. 8B), the microphone 152-2 is provided on the back side of the front.

  As illustrated in FIG. 7, the microphone 152-2 outputs audio data indicating the input sound to the audio processing unit 15. The voice processing unit 15 distinguishes the voice data input from the microphone 152-1 and the voice data input from the microphone 152-2, and outputs them to the control unit 11. The control unit 11 uses the audio data related to the microphone 152-1 for a call and uses the audio data related to the microphone 152-2 as an audio measurement signal. In this way, a dedicated microphone for sound input related to the sound measurement signal used for the detection process may be provided using a plurality of microphones.

  A plurality of dedicated microphones for sound input related to the sound measurement signal used for the detection process may be used. For example, you may provide in the side surface and upper surface of the housing | casing 10 further. The sound collection directions of the microphones may be directed in the x, y, and z directions (all normal directions of the six surfaces of the housing 10 may be used), and a sound measurement signal corresponding to the sound in each direction may be used. Good. In this case, the direction related to the motion measurement signal in the detection process and the direction related to the audio measurement signal may be set in correspondence. That is, if the motion measurement signal related to the pattern detection determination in the detection process uses the x direction, the condition can be determined using the sound measurement signal related to the sound input from the microphone that collects sound in the x direction. Good.

  When the change in acceleration indicated by the motion measurement signal corresponding to the x direction is large, there is a high possibility that a user operation (such as tapping the housing 10 in the x direction) is performed in the x direction. The volume level related to sound collection in the x direction increases. Therefore, it is possible to make a more accurate determination of the user's operation. Further, it may be determined in a composite manner with respect to the audio measurement signal in each direction. For example, the volume level in the x direction may be large and the volume level in other directions may be small. Therefore, if a condition reflecting such an actual situation is provided for each microphone, the housing 10 It is possible to more accurately determine the operation of the user giving the movement.

[Modification 2]
In the above-described embodiment, it is determined whether or not the change in the feature amount of the voice measurement signal satisfies the specific condition in the detection process. However, depending on the correlation of the temporal change between the motion measurement signal and the voice measurement signal. You may make it judge. In this case, the following configuration may be used.

  FIG. 9 is a diagram illustrating an example of the processing correspondence table according to the second modification. In the processing correspondence table in the modified example 2, the time correlation between the change in the acceleration of the motion measurement signal and the change in the feature amount of the speech measurement signal (correlation A, B, C, Are associated with each process. These correlations are used to detect a change in the audio measurement signal when a sound that is likely to be generated is input from the microphone 152 by a user operation when a movement in a specific manner is given to the housing 10. This is defined as a temporal correlation between the change in the acceleration of the motion measurement signal and the change in the voice measurement signal (or its feature value) when there is a movement in the specific mode.

FIG. 10 is a flowchart showing a flow of detection processing according to the second modification. The processing that is the same as the reference numerals in the embodiment is the same as the processing in the embodiment, and thus description thereof is omitted.
When the control unit 11 reads out the voice measurement signal in step S130, the control unit 11 specifies the correlation corresponding to the detected pattern from the processing correspondence table, and the change in the voice measurement signal and the change in the operation measurement signal during that period. Determines whether or not the specified correlation is satisfied (step S240).

If the correlation is not satisfied (step S240; No), it is determined that the pattern is detected in the motion measurement signal is not an operation performed by the user, and the process returns to step S120 to continue the process. .
On the other hand, when the correlation is satisfied (step S240; Yes), it is determined that the pattern is detected in the motion measurement signal due to an operation performed by the user. Then, the process corresponding to the detected pattern (corresponding to the correlation) is identified from the process correspondence table, the identified process is executed (step S150), and the process returns to step S120 to continue the process. In this way, when the content of the audio measurement signal changes in accordance with the change in the acceleration of the housing 10 (or the speed that changes according to the change in acceleration, etc.), for example, in the operation of shaking the housing 10, it moves quickly. When the wind noise generated is high, the accuracy of determination in the detection process can be improved. Here, when it is the structure which provides multiple microphones like the modification 1, you may make the structure of the housing | casing 10 of the vicinity where the microphone which concerns on an audio | voice measurement signal was provided into the structure where a wind noise is easy to generate | occur | produce.

  Note that it is first determined whether the temporal correlation between the change in the motion measurement signal and the change in the voice measurement signal matches each correlation in the processing correspondence table, and then the acceleration of the acceleration indicated by the motion measurement signal that satisfies the correlation is determined. It may be determined whether the change matches the pattern corresponding to the correlation.

[Modification 3]
In the above-described embodiment, the determination related to the audio measurement signal is performed after determining whether the change in acceleration indicated by the motion measurement signal matches each pattern in the processing correspondence table. A determination may be made. In this case, it may be determined after the determination related to the audio measurement signal whether the change in the acceleration of the motion measurement signal in the corresponding period Ts related to the determination matches the pattern corresponding to this condition.

[Modification 4]
In the above-described embodiment, as an example of the conditions associated in the processing correspondence table, the condition is determined corresponding to the feature amount of the audio measurement signal, but the condition including the operation measurement signal and the audio measurement signal It may be content. For example, in the embodiment, the condition that the volume level is L1 or more is an example of the condition, but L1 may be changed to a large value when the amount of change in acceleration indicated by the motion measurement signal is large. In this way, when the casing 10 is moved with a large force (a large amount of change in acceleration), it is normal that the sound generated by the action increases (the maximum value of the volume level is large). Therefore, a determination reflecting this can be made.

[Modification 5]
In the above-described embodiment, the acceleration measuring unit 16 is an acceleration sensor. However, even if the acceleration measuring unit 16 is not a sensor that outputs a signal indicating an acceleration value, the acceleration measuring unit 16 may output a signal due to a change in acceleration. Any configuration may be used. For example, a signal may be output by detecting vibration such as a vibration switch. According to the vibration switch, a vibration is generated by a change in acceleration, and a signal is output as a result. Therefore, a signal is output by a change in acceleration.

  Further, the measurement of the acceleration of the housing 10 may be performed by an external device of the housing 10. For example, the housing 10 may be photographed with a camera or the like, and the acceleration of the housing 10 may be measured by analyzing the photographed video.

[Modification 6]
In the above-described embodiment, the mobile device 1 is a mobile phone, a PDA, etc., but any electronic product that can be carried by a user, such as a remote control, a notebook computer, a mobile music player, or a mobile game machine. It may be anything.

When applied to a remote controller or the like, the entire information processing apparatus having a remote controller and a main body that receives a signal from the remote controller may have the same configuration as that of the mobile device 1. For example, the housing 10 in the embodiment is a remote control housing, and the remote control housing has a configuration of the microphone 152 and the acceleration measurement unit 16 and is further output from the microphone 152 and the acceleration measurement unit 16. What is necessary is just to provide the transmission means which transmits each signal. Then, the main body may have the remaining configuration of the portable device 1 and a reception unit that receives a signal transmitted from the transmission unit. The remote controller may be a controller such as a game machine. In this case, the main body corresponds to the game machine main body.
Thus, the configuration of the information processing apparatus that implements the present invention does not have to be portable as a whole, as long as the casing having the microphone 152 and the acceleration measuring unit 16 can be carried.

[Modification 7]
The control program in the above-described embodiment is provided in a state stored in a computer-readable recording medium such as a magnetic recording medium (magnetic tape, magnetic disk, etc.), an optical recording medium (optical disk, etc.), a magneto-optical recording medium, or a semiconductor memory. Can do. It is also possible to download via the network.

DESCRIPTION OF SYMBOLS 1,1A ... Portable apparatus, 10 ... Housing | casing, 11 ... Control part, 12 ... Memory | storage part, 13 ... Operation part, 14 ... Display part, 15 ... Audio | voice processing part, 16 ... Acceleration measuring part, 17 ... Interface, 151 ... Speaker, 152, 152-1, 152-2 ... Microphone, 111 ... Buffer, 112 ... Determination unit, 113 ... Execution unit

Claims (5)

Measurement signal output means for measuring the acceleration of the housing and outputting a measurement signal indicating the measured acceleration;
Audio signal output means for outputting an audio signal indicating audio input to a microphone provided in the housing;
A condition in which the audio feature amount indicated by the audio signal output from the audio signal output means during the period when the acceleration indicated by the measurement signal output from the measurement signal output means changes in a specific manner corresponds to the specific aspect. Determining means for determining whether or not
An information processing apparatus comprising: an execution unit that executes a process according to the specific aspect when the determination unit determines that the condition is satisfied. The change in the specific mode indicates a change in acceleration indicated by the measurement signal output by the measurement signal output means when the casing is hit in a specific manner.
The feature amount of the sound is a volume level of the sound,
2. The determination unit according to claim 1, wherein the determination unit determines that the condition is satisfied when a sound volume level indicated by the audio signal is equal to or higher than a specific level at any timing of the period. Information processing device. The change in the specific mode indicates a change in acceleration indicated by the measurement signal output by the measurement signal output means when the casing is hit in a specific manner.
The feature amount of the sound is a volume level of the sound,
The determination means uses the volume level of the sound indicated by the sound signal before the period as a reference, and the amount of increase in the sound volume level indicated by the sound signal at a certain timing in the period becomes a specific amount or more. The information processing apparatus according to claim 1, wherein the information processing apparatus determines that the condition is satisfied. Measurement signal output means for measuring the acceleration of the housing and outputting a measurement signal indicating the measured acceleration;
Audio signal output means for outputting an audio signal indicating audio input to a microphone provided in the housing;
Changes in voice feature values indicated by the audio signal output from the audio signal output means and changes in the specific aspect during a period in which the acceleration indicated by the measurement signal output from the measurement signal output means changes in a specific aspect Determining means for determining whether the temporal correlation with is a specific correlation;
An information processing apparatus comprising: an execution unit that executes processing according to the specific mode when the determination unit determines that the specific correlation is established. The microphone is provided so that sound in a specific direction of the housing is input.
The information processing apparatus according to any one of claims 1 to 4, wherein the change in the specific mode includes a change in the specific direction component of acceleration.

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