JP2013009236A - Portable terminal device, and sound-adjustment method and program therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable terminal device, and sound-adjustment method and program therefor that will not greatly change the quality and volume of the sound generated from an external member abutting on the terminal device due to nature of the member.SOLUTION: A portable terminal device 100 includes: a vibration part 110 for coming into contact with an external object to transmit the vibration to the object; a driving part 160 for driving the vibration part 110; a sound collection part 120 for collecting sound generated by the object excited by the vibration part 110 driven by the driving part 160; an analysis part 140 for analyzing the sound collected by the sound collection part 120; and an adjustment part 150 for instructing the driving part 160 so that the driving part 160 adjust the quality and/or volume of the sound generated by the object derived from the vibration of the vibration part 110 in accordance with the analysis result of the analysis part 140.

Description

  The present invention relates to a mobile terminal device that generates a sound by vibrating an object outside a main body, a sound adjustment method for the mobile terminal device, and a sound adjustment program for the mobile terminal device.

  The apparatus main body has a vibration section that generates vibration, and the vibration section vibrates an external object, for example, a desk on which the apparatus main body is placed, and generates sound from the external object (for example, a desk). An apparatus is known (for example, Patent Document 1).

  In addition, many mobile phones can perform notification of an incoming call or the like by vibration when using the manner mode or the like (for example, Patent Document 2).

Japanese Patent No. 4459090 JP 2009-159527 A

  However, the conventional apparatus of Patent Document 1 has a problem that the sound quality and volume of the generated sound greatly vary depending on the material, size, and shape of the external object that generates sound, and other external objects that are vibrated. there were. Therefore, depending on the material of the external object, for example, the sound volume may be insufficient or the sound quality may be unfavorable.

  In addition, in the conventional device (mobile phone) of Patent Document 2, when an incoming call is received with the mobile phone placed on a desk or the like, the vibration unit using a motor or the like built in the mobile phone vibrates. There was a problem that the vibration was transmitted to a desk or the like and a loud sound was generated. For example, such a situation may occur during a meeting or the like, and even if the manner mode is set, a noise larger than a normal ringing tone may be generated and the meeting may be interrupted.

  An object of the present invention is to provide a mobile terminal device in which the sound quality and / or volume of sound generated from an external member in contact with the mobile terminal device does not vary greatly depending on the external member, a voice adjustment method for the mobile terminal device, and a mobile terminal It is to provide a sound adjustment program for a device.

  The present invention proposes the following matters in order to solve the above problems. In addition, in order to make an understanding easy, although the code | symbol corresponding to embodiment of this invention is attached | subjected and demonstrated, it is not limited to this.

(1) The present invention is driven by the vibration unit (110) that transmits vibration to the object by contacting the external object (1), the drive unit (160) that drives the vibration unit, and the drive unit. A sound collection unit (120) that collects sound emitted by the object excited by the vibration unit, an analysis unit (140) that analyzes the sound collected by the sound collection unit, and an analysis of the analysis unit According to the result, a mobile terminal device (100) comprising: an adjustment unit (150) for instructing the drive unit to adjust the sound quality and / or volume of the sound emitted by the object due to the vibration of the vibration unit ).

According to the present invention, the vibration unit transmits vibration to the object by contacting the external object. The drive unit drives the vibration unit. The sound collection unit collects sound emitted from the object excited by the vibration unit driven by the drive unit. The analysis unit analyzes the sound collected by the sound collection unit. The adjusting unit instructs the driving unit to adjust the sound quality and / or volume of the sound emitted by the object due to the vibration of the vibrating unit according to the analysis result of the analyzing unit. Accordingly, the mobile terminal device can prevent the sound quality and / or volume of sound generated from an external member in contact with the mobile terminal device from being greatly changed by the external member. Therefore, it can be prevented that the volume of the external object is insufficient or the sound quality is unfavorable, and the incoming call is automatically received at the appropriate volume and sound quality according to the material of the table on which the mobile terminal device is placed. Notification and audio playback can be performed.
Conventionally, when the manner mode (vibrator) is set, for example, when the vibrator suddenly rings as an incoming call notification on a wooden long desk or the like, there may be a case where a loud vibration sound is suddenly generated and the conference is disturbed. . On the other hand, according to the present invention, it is possible to prevent such a sudden strong vibration sound and notify an incoming call with appropriate vibration.

(2) In the mobile terminal device according to (1), the analysis unit (140) compares the frequency characteristics of a sound source with the frequency characteristics of the sound collected by the sound collection unit (120). The portable terminal device (100) characterized by the above is proposed.

  According to this invention, the analysis unit compares the frequency characteristic of the sound source with the frequency characteristic of the sound collected by the sound collection unit. Therefore, it is possible to analyze what adjustment is necessary to make the sound quality of the sound collected by the sound collection unit close to the sound quality of the sound source.

(3) The present invention provides the portable terminal device according to (2), wherein the adjustment unit (150) calculates a difference between a frequency characteristic of a sound source and a frequency characteristic of a sound collected by the sound collection unit (120). The portable terminal device (100) characterized by performing adjustment to reduce is proposed.

  According to this invention, the adjustment unit performs adjustment so as to reduce the difference between the frequency characteristic of the sound source and the frequency characteristic of the sound collected by the sound collection unit. Therefore, the sound quality of the sound collected by the sound collection unit can be made close to the sound quality of the sound source.

(4) The present invention provides the mobile terminal device according to any one of (1) to (3), wherein the adjustment unit (150) performs adjustment so as to obtain a preset volume. The portable terminal device (100) characterized by this is proposed.

  According to this invention, the adjustment unit performs adjustment so as to obtain a preset volume. Therefore, it is possible to prevent the sound volume from being insufficient or excessively high depending on the material of the external object.

(5) The present invention drives the vibration unit (110) that transmits vibration to the object by contacting the external object (1), and generates sound generated by the object excited by the driven vibration unit. Collects sound, analyzes the sound collected by the sound collection unit (120), and drives to adjust the sound quality and / or volume of the sound emitted by the object by the vibration of the vibration unit according to the analysis result Proposes an audio adjustment method for the portable terminal device (100) that gives instructions to the unit (160).

  According to the present invention, the mobile terminal device contacts the external object, drives the vibration unit that transmits vibration to the object, collects sound emitted from the object excited by the driven vibration unit, and collects the sound. The sound collected by the sound unit is analyzed, and an instruction is given to the drive unit to adjust the sound quality and / or volume of the sound emitted by the object due to the vibration of the vibration unit according to the analysis result. Therefore, it is possible to prevent the sound quality and / or volume of sound generated from an external member in contact with the mobile terminal device from being greatly changed by the external member.

(6) The present invention is driven by the vibration unit (110) that transmits vibration to the object by contacting the external object (1), the drive unit (160) that drives the vibration unit, and the drive unit. A sound collection program (120) for collecting sound emitted by the object excited by the vibration unit, and a sound adjustment program for a portable terminal device (100), comprising: Analyzing means (140) for analyzing the sound collected by the sound collecting section, and adjusting the sound quality and / or volume of the sound emitted by the object due to the vibration of the vibrating section according to the analysis result of the analyzing means Thus, a voice adjustment program for a portable terminal device is proposed for functioning as adjustment means (150) for giving an instruction to the drive unit.

  According to the present invention, the vibration unit transmits vibration to the object by contacting the external object. The drive unit drives the vibration unit. The sound collection unit collects sound emitted from the object excited by the vibration unit driven by the drive unit. The analysis means analyzes the sound collected by the sound collection unit. The adjusting unit instructs the driving unit to adjust the sound quality and / or volume of the sound emitted by the object due to the vibration of the vibrating unit according to the analysis result of the analyzing unit. Therefore, it is possible to prevent the sound quality and / or volume of sound generated from an external member in contact with the mobile terminal device from being greatly changed by the external member.

  According to the present invention, it is possible to prevent the sound quality and / or volume of sound generated from an external member in contact with the mobile terminal device from being greatly changed by the external member.

It is a figure which shows embodiment of the portable terminal device 100 using the audio | voice adjustment method and audio | voice adjustment program by this invention. 4 is a block diagram for explaining a portion related to a sound adjustment method of the mobile terminal device 100. It is a figure explaining an example of the frequency equalizing adjustment which the adjustment part 150 performs. It is a flowchart which shows the operation | movement of the alerting | reporting using the vibration part 110 of the portable terminal device 100 of this embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Note that the constituent elements in the present embodiment can be appropriately replaced with existing constituent elements and the like, and various variations including combinations with other existing constituent elements are possible. Therefore, the description of the present embodiment does not limit the contents of the invention described in the claims.

(Embodiment)
FIG. 1 is a diagram illustrating an embodiment of a mobile terminal device 100 using a sound adjustment method and a sound adjustment program according to the present invention.
FIG. 2 is a block diagram illustrating a portion related to the audio adjustment method of the mobile terminal device 100.
The mobile terminal device 100 of this embodiment is a mobile phone having a call function.
The mobile terminal device 100 includes a vibration unit 110, a sound collection unit 120, a sound source unit 130, an analysis unit 140, an adjustment unit 150, and a drive unit 160.

  The vibration part 110 includes a vibrator 111 and a contact part 112. The mobile terminal device 100 vibrates the vibration unit 110 in an operation mode (hereinafter referred to as vibration mode) in which an incoming call is notified without generating sound. Note that the vibration mode of the present embodiment is the same as the conventional manner mode, but is placed in contact with an external object by vibration so that the vibration is not perceived by the user at the time of incoming call notification. A vibration sound is generated to notify the incoming call more reliably.

  Moreover, the portable terminal device 100 vibrates the desk 1 by placing a contact portion 112 described later on the desk 1 or the like so that the desk 1 itself can be used as a diaphragm, so that music or a communication partner can be used. Voice such as voice can be generated (hereinafter referred to as vibration speaker mode). The portable terminal device 100 also vibrates the vibration unit 110 at this time. In the present embodiment, description will be made with emphasis on the above-described vibration mode and vibration speaker mode, but in addition to these, an operation mode for performing incoming call notification, voice reproduction, etc. using a normal speaker is provided. It may be.

  The vibrator 111 is driven by the drive unit 160 to vibrate. Further, the contact portion 112 is provided integrally with the vibrator 111 using an adhesive or the like, and the vibration of the vibrator 111 is transmitted to the contact portion 112 as it is. As the vibrator 111, for example, a bimorph vibrator in which piezoelectric elements are stacked can be used.

The contact portion 112 is provided with one surface exposed to the outside of the mobile terminal device 100, and the other surface is provided integrally with the vibrator 111 using an adhesive or the like. For example, when the portable terminal device 100 is placed on the desk 1, the contact unit 112 is in direct contact with the surface of the desk 1. In this state, when the vibrator 111 vibrates, the contact portion 112 transmits vibration to the desk 1 and the desk 1 is excited.
In addition, the contact part 112 of this embodiment is provided in the opposite side (back surface side) with the sound collection part 120 in the portable terminal device 100. FIG.

  The sound collection unit 120 is a microphone provided on the front side of the mobile terminal device 100. In the present embodiment, the surface side is a side on which a display unit, operation keys, and the like (not shown) are provided, and refers to a side facing the user side during a call. The sound collection unit 120 collects a user's voice during a call. The sound collection unit 120 also collects sound generated by an external object when the vibration unit 110 is vibrating.

  The sound source unit 130 manages sound transmitted from the mobile terminal device 100 to the user and a vibration pattern for vibrating the vibration unit in the vibration mode. The sound source unit 130 calls the voice data such as a ring tone or a ringing melody stored in a storage unit (not shown) and sends it to the analysis unit 140 when making an incoming call notification. In addition, the sound source unit 130 sends the voice data sent from the other party of call acquired from the communication unit (not shown) to the analysis unit 140 during a call. Furthermore, the sound source unit 130 sends a vibration pattern stored in a storage unit (not shown) to the analysis unit 140 when making an incoming call notification in the vibration mode. Note that the setting and cancellation of the vibration mode is performed in advance using an operation member or the like.

The analysis unit 140 analyzes the sound collected by the sound collection unit 120.
In the vibration speaker mode, the analysis unit 140 compares the frequency characteristics of the sound source with the frequency characteristics of the sound collected by the sound collection unit 120. More specifically, the analysis unit obtains the difference between the frequency characteristics of the sound source and the frequency characteristics of the sound collected by the sound collection unit 120 and sends the difference to the adjustment unit 150.
Further, the analysis unit 140 obtains a difference between the sound collected by the sound collection unit 120 and the set volume set in advance by the user in the vibration speaker mode and in the vibration mode, and adjusts the adjustment unit 150. Send to.

Based on the information obtained from the analysis unit 140, the adjustment unit 150 instructs the drive unit 160 to adjust the sound quality and volume of sound generated by an external object due to the vibration of the vibration unit 110, and to adjust the volume. Put out.
In the vibration speaker mode, the adjustment unit 150 performs frequency equalizing adjustment to adjust the frequency characteristic of the sound source so as to reduce the difference between the frequency characteristic of the sound source and the frequency characteristic of the sound collected by the sound collection unit 120, and performs the adjustment. The subsequent drive data (sound source data) is sent to the drive unit 160.

FIG. 3 is a diagram for explaining an example of frequency equalization adjustment performed by the adjustment unit 150. FIG. 3A shows an example of the frequency characteristic of the sound source before adjustment. FIG. 3B shows an example of frequency characteristics of the sound collected by the sound collection unit 120 when sound is generated in the vibration speaker mode using the sound source of FIG. FIG. 3C shows drive data (sound source data) in which the adjustment unit 150 performs frequency equalization adjustment based on the analysis result of the analysis unit 140 that acquired the waveform data of FIGS. 3A and 3B. Show.
For example, even when sound source data having a waveform that is almost flat as shown in FIG. 3A is reproduced in the vibration speaker mode, the mobile terminal device 100 is placed (the contact unit 112 is in contact with the sound source data). The sound quality and volume of the actually generated sound differ depending on various factors such as what kind of material the external object (desk 1 or the like) is, how thick it is, and how large it is. The sound quality and sound volume are greatly affected by the natural frequency of an external object, but even if a heavy object is placed on a desk, it is greatly affected.
In the present embodiment, sound actually emitted from an external object is collected by the sound collection unit 120 to obtain a waveform as shown in FIG. In the example of FIG. 3, the sound data collected by the sound collecting unit 120 has a peak that does not exist in the sound source (the position indicated by the broken line in the figure), and the overall shape is also the sound source of FIG. It is very different from the ones. Therefore, the adjusting unit 150 performs frequency equalizing adjustment on the sound source data so that the frequency characteristics of the sound collected by the sound collecting unit 120 are close to the frequency characteristics of the sound source, and the sound source data as shown in FIG. This is sent to the drive unit 160 as drive data. In the example of FIG. 3, in order to suppress the portion having the peak in FIG. 3B, the waveform has a waveform shape in which the level around the corresponding frequency is lowered.

Further, the adjustment unit 150 amplifies the difference between the sound collected by the sound collection unit 120 and the set volume set in advance by the user in the vibration speaker mode and in the vibration mode. An instruction is sent to the drive unit 160 to change the rate.
Here, in the vibration speaker mode, the adjustment unit 150 may perform adjustment that places importance on sound quality, or may make adjustment that places importance on volume. Further, an adjustment may be made to balance the sound quality and the volume. The above-described example of FIG. 3 is an example of adjustment in the case of performing adjustment with emphasis on sound quality. On the other hand, when importance is attached to the sound volume, frequency equalizing adjustment may be performed so as to resonate the object, contrary to the case of FIG. It should be noted that whether the sound quality is important, the sound volume is important, or the balance between these is preferably set in advance by the user.

  The drive unit 160 drives the vibrator 111 based on a drive signal corresponding to the sound source or vibration pattern obtained via the adjustment unit 150. In addition, the drive unit 160 adjusts the amplitude of the transducer 111 by changing the amplification factor of the signal when driving the transducer 111 in accordance with an instruction from the adjustment unit 150.

  The sound source unit 130, the analysis unit 140, the adjustment unit 150, and the like described above can be configured as part of the functions of a computer (not shown) in the mobile terminal device 100.

  FIG. 4 is a flowchart showing an incoming call notification operation using the vibration unit 110 of the mobile terminal device 100 of the present embodiment.

  In step (hereinafter referred to as “S”) 100, portable terminal apparatus 100 determines whether the mode is the vibration mode or the vibration speaker mode. In the case of the vibration mode, the process proceeds to S110, and in the case of the vibration speaker mode, the process proceeds to S160.

In S <b> 110, the drive unit 160 vibrates the vibration unit 110 according to the vibration pattern managed by the sound source unit 130. The amplification factor of the drive signal at this time is a predetermined value (initial value). Here, in the vibration mode, the drive unit 160 causes the vibration unit 110 to vibrate intermittently when performing the analysis of S120 described later.
In S110, the sound collection unit 120 starts collecting sound.

In S120, the analysis unit 140 analyzes whether or not the level of the vibration sound generated from the object collected by the sound collection unit 120 is within a certain range from the setting value set in advance by the user.
At this time, as described above, the vibration unit 110 vibrates intermittently, so that the analysis unit 140 compares the difference between the sound collected during the vibration and the sound collected while the vibration is stopped. By this comparison, the analysis unit 140 detects whether the volume generated by the vibration appears within the reference value. Therefore, the analysis unit 140 can perform analysis in consideration of noise around the environment where the mobile terminal device 100 is placed. Therefore, in S <b> 130 described later, the adjustment unit 150 can perform vibration amplitude adjustment in consideration of noise around the environment where the mobile terminal device 100 is placed. The analysis result is sent to the adjustment unit 150.
In the vibration mode (manner mode), there are many cases where it is not desired to generate sound. However, when the portable terminal device 100 is placed on the desk 1 or the like, the vibration is transmitted to the desk 1 by vibration in the vibration mode, and sound is emitted from the desk 1 or the portable terminal device 100 and the desk 1 are vibrated. There is a sound that collides with. In this embodiment, using this sound, it is basically based on not sounding as a manner mode, while suppressing the adverse effect of inadvertently loud sound on the desk, etc., and In order to prevent the incoming call from being noticed, the incoming call is notified using the vibration sound even in the vibration mode. In the vibration mode, such vibration sound is adjusted by the following steps.

  In S130, the adjustment unit 150 instructs the drive unit 160 to adjust the vibration amplitude of the vibration unit 110 by changing the amplification factor of the drive signal according to the analysis result of the vibration sound level by the analysis unit 140. Put out. For example, when the collected sound is larger than the set value, the amplification factor is decreased to suppress the vibration, and conversely, when the vibration sound is smaller than the set value, the amplification factor is increased to notify the user of the incoming call. To do.

  In S <b> 140, the adjustment unit 150 determines whether the maximum value of the adjustment range in which the vibration amplitude can be adjusted by the vibration unit 110 has been reached based on the amplified drive signal. If the maximum value has been reached, no further adjustment is possible, so the process proceeds to S150. If the maximum value has not been reached, the process returns to S120 and the adjustment operation is continued.

  In S150, the drive unit 160 continues to drive the vibration unit 110. Moreover, the sound collection unit 120 ends the sound collection.

In S <b> 160, the driving unit 160 vibrates the vibration unit 110 according to the sound source data managed by the sound source unit 130. The amplification factor of the drive signal at this time is a value (set value) corresponding to a preset volume.
In S160, the sound collection unit 120 starts sound collection.

In S170, the analysis unit 140 analyzes whether the level of the sound generated by the object collected by the sound collection unit 120 is within a certain range from a setting value set in advance by the user. The analysis unit 140 also analyzes the sound quality of the sound generated by the object collected by the sound collection unit 120. Specifically, a waveform (for example, FIG. 3A and FIG. 3B) showing frequency characteristics of the sound source data and the collected voice data is compared. The analysis result is sent to the adjustment unit 150.
Here, since it is a vibration speaker mode, in addition to the volume of the incoming melody generated from the object, the sound quality is also adjusted by the following steps.

In S180, sound adjustment is performed.
The adjustment unit 150 instructs the drive unit 160 to adjust the vibration amplitude of the vibration unit 110 by changing the amplification factor of the drive signal according to the analysis result of the vibration sound level by the analysis unit 140. For example, when the collected sound is larger than the set value, the amplification factor is reduced to suppress vibration, and conversely, when the vibration sound is smaller than the set value, the amplification factor is increased to make the user receive an incoming call. To do.
Further, the adjustment unit 150 performs frequency equalizing adjustment for adjusting the frequency characteristics of the sound source according to the analysis result of the vibration sound quality by the analysis unit 140, that is, the comparison result of the frequency characteristics, and the adjusted drive data ( (Sound source data) is sent to the drive unit 160.
It should be noted that the specific adjustment contents of the frequency equalizing adjustment differ depending on the settings such as whether sound quality is important or sound volume is important as described above.

  In S <b> 190, the adjustment unit 150 determines whether or not the maximum value of the adjustment range in which the vibration amplitude can be adjusted by the vibration unit 110 has been reached based on the amplified drive signal. At the same time, the adjustment unit 150 determines whether or not the adjustment amount has reached the maximum value of the adjustment range in which the frequency equalizing adjustment is possible, based on the adjusted drive signal. If both of these have reached the maximum value, no further adjustment is possible, so the process proceeds to S200, and if it has not reached the maximum value, the process returns to S170 and the adjustment operation is continued.

  In S200, the drive unit 160 continues to drive the vibration unit 110. Moreover, the sound collection unit 120 ends the sound collection.

  In S210, the incoming call process or the call termination process is performed according to the operation content of the operation member by the user, and the incoming call notification process is terminated.

  In the above description using FIG. 4, the incoming call notification is described. However, although there is no processing portion in the vibration mode even for music playback or hands-free call, a similar voice adjustment method is used. Do.

  As described above, according to the present embodiment, since the analysis unit 140 and the adjustment unit 150 are provided, the sound quality and volume of sound generated from an external member in contact with the mobile terminal device 100 are greatly changed. Can be suppressed. That is, in the vibration mode, it is possible to prevent the generation of inadvertently loud vibration noise, and it is possible to prevent the user from noticing the incoming call due to the vibration being too small. Further, in the vibration speaker mode, in addition to the volume adjustment, the sound quality of the sound generated from the external member is also adjusted by performing the frequency equalizing adjustment. Therefore, no matter what member the mobile terminal device 100 is in contact with, the sound close to the timbre of the original sound source can be generated at an appropriate volume set by the user.

  The processing of the portable terminal device is recorded on a computer-readable recording medium, the program recorded on the recording medium is read into the portable terminal device, and executed to execute the portable terminal device of the present invention and the voice of the portable terminal device. An adjustment method can be realized. Here, the computer includes hardware such as an OS and peripheral devices.

  Further, the “computer” includes a homepage providing environment (or display environment) if a WWW (World Wide Web) system is used. Further, the program may be transmitted from a computer storing the program in a storage device or the like to another computer via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line.

  The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer, what is called a difference file (difference program) may be sufficient.

  The embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to the embodiments, and includes designs and the like that do not depart from the gist of the present invention.

(Deformation)
For example, in the embodiment, a mobile phone terminal has been described as an example. However, the present invention is not limited to this, and may be another type of mobile terminal device such as a wireless communication terminal having no call function.

DESCRIPTION OF SYMBOLS 100 Portable terminal device 110 Vibrating part 111 Vibrator 112 Contact part 120 Sound collecting part 130 Sound source part 140 Analyzing part 150 Adjustment part 160 Drive part

Claims (6)

A vibration unit that transmits vibration to the object by contacting an external object;
A drive unit for driving the vibration unit;
A sound collection unit that collects sound emitted by the object excited by the vibration unit driven by the drive unit;
An analysis unit for analyzing the sound collected by the sound collection unit;
An adjustment unit that instructs the drive unit to adjust the sound quality and / or volume of the sound emitted by the object due to the vibration of the vibration unit according to the analysis result of the analysis unit;
A mobile terminal device comprising: The mobile terminal device according to claim 1,
The analysis unit compares the frequency characteristics of a sound source and the frequency characteristics of the sound collected by the sound collection unit;
The portable terminal device characterized by this. The mobile terminal device according to claim 2,
The adjusting unit performs adjustment so as to reduce a difference between a frequency characteristic of a sound source and a frequency characteristic of the sound collected by the sound collecting unit;
The portable terminal device characterized by this. In the portable terminal device according to any one of claims 1 to 3,
The adjustment unit performs adjustment so as to obtain a preset volume;
The portable terminal device characterized by this. By contacting an external object, the vibration unit that transmits vibration to the object is driven,
Collecting the sound emitted by the object excited by the driven vibration unit;
Analyzing the sound collected by the sound collection unit,
Depending on the analysis result, the drive unit is instructed to adjust the sound quality and / or volume of the sound emitted by the object due to the vibration of the vibration unit.
Audio adjustment method for portable terminal device. A vibration unit that transmits vibration to the object by contacting an external object;
A drive unit for driving the vibration unit;
A sound collection unit that collects sound emitted by the object excited by the vibration unit driven by the drive unit;
An audio adjustment program for a portable terminal device comprising:
The computer of the portable terminal device,
Analyzing means for analyzing the sound collected by the sound collection unit;
A portable terminal for functioning as an adjusting means for instructing the driving unit to adjust the sound quality and / or volume of the sound emitted by the object due to the vibration of the vibrating unit according to the analysis result of the analyzing unit Device audio adjustment program.

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