JP5817197B2 - Terminal device, server device, masking system, and program - Google Patents

Description

  The present invention relates to a technique for masking voice.

As inventions using the masking effect, there are inventions disclosed in Patent Documents 1 and 2. The sound masking system disclosed in Patent Literature 1 arranges a microphone in an acoustic space, and divides the sound collected by the microphone into a plurality of frames. In addition, the divided sound is replaced with a reverse waveform in each frame, and the process of smoothing the connection between the frames is performed. Then, the order of the frames is randomly arranged to generate a masking sound, and the generated masking sound is converted into a microphone. Sound is emitted from a speaker in an acoustic space different from the certain acoustic space. Thereby, even if a conversation is performed in an acoustic space with a microphone, the generated masking sound is emitted into the acoustic space with a speaker. Even if the acoustic space with the speaker and the acoustic space with the microphone are close, the masking sound generated from the sound collected by the microphone is emitted into the acoustic space with the speaker. The conversation is masked.
In addition, the speech processing device disclosed in Patent Document 2 arranges a microphone at a place where conversation is performed and a speaker near the place where conversation is performed. Here, the sound processing device generates a deformed spectrum obtained by modifying the spectrum of the sound collected by the microphone, and generates a sound signal from the generated deformed spectrum. The generated sound signal is supplied to a speaker, and a disturbing sound that prevents the sound collected by the microphone from being heard is emitted from the speaker.

JP 2008-233671 A JP 2006-243178 A

  By the way, there are various situations in which it is desired to prevent the contents of the conversation from being heard by others. For example, when a drug described in a prescription given by a doctor is purchased at a pharmacy, an explanation of the effects and side effects of the drug described in the prescription may be received, or the name of the drug being taken may be told to the pharmacist. Here, if someone asks about the name, effects, or side effects of a drug, there is a risk that the other person will be able to identify the disease. If the inventions disclosed in Patent Documents 1 and 2 are installed, there is no possibility that others will hear the conversation, but it is very important to always place the device disclosed in Patent Documents 1 and 2 in such a place. It takes time and cost. Further, even if there is an invention disclosed in Patent Documents 1 and 2 at a certain pharmacy, if there is no invention disclosed in Patent Documents 1 and 2 at another pharmacy, the content of the conversation can be heard by others.

  The present invention has been made under the above-described background, and an object of the present invention is to provide a technique capable of masking a conversation at a destination even if a person who has a conversation moves.

In order to solve the above-described problems, the present invention provides a sound collection unit that collects sound, a data generation unit that generates sound data representing sound collected by the sound collection unit, and a data generation unit that generates the sound data. It said audio data, and sends a transmission means for transmitting an identifier to uniquely identify the user of the masker sound generated from the sound to a predetermined server device, the identifier to the server device, the server Acquisition means for acquiring data representing the masker sound from the server device, the data being generated on the basis of the voice data transmitted from the transmission means and associated with the transmitted identifier in the apparatus; A masker sound generating means for generating a signal representing the masker sound from the data acquired by the acquiring means; and a sound generator for emitting the sound represented by the signal generated by the masker sound generating means. Providing a terminal and means.

In the present invention, the sound collecting means may be configured to pick up sound generated by a human and background noise around the sound collecting means.
Further, in the present invention, the sound collecting means may be configured to collect a sound generated by a person, and the sound generated by the person is a sound obtained by reading a predetermined sentence aloud.
Further, in the present invention, the sound collecting means may collect a sound generated by a human and the sound generated by the human may be a conversational sound.
In the present invention, the sound emitted by the human being is collected at a plurality of locations, and the masker sound data is generated for each of the plurality of locations, and one of the plurality of locations is selected and selected. The configuration may be such that the masker sound data generated from the sound data collected at the place is acquired.

Further, the present invention provides audio data representing the sound collected by the sound collection means, a reception means for receiving an identifier for uniquely identifying a user of the masker sound generated from the sound, and received by the reception means. Generating means for generating data representing the masker sound based on the voice data; storage means for storing the data generated by the generating means in association with the identifier received by the receiving means; and the storage means And a transmission unit that transmits data associated with the identifier transmitted from the terminal device to the terminal device.

The present invention includes a sound collecting means for picking up a sound, and a first generating means for generating audio data representing the picked-up sound by the sound collecting unit, the audio data generated by said first generating means When a first transmitting means for transmitting an identifier to uniquely identify the user of the masker sound generated from the sound to a predetermined server apparatus, transmits the identifier to the server device, the at the server device An acquisition unit that is associated with the transmitted identifier and is generated based on the audio data transmitted from the first transmission unit, and that acquires data representing the masker sound from the server device; A terminal comprising: a masker sound generating means for generating a signal representing the masker sound from the data acquired by the acquiring means; and a sound emitting means for emitting the sound represented by the signal generated by the masker sound generating means. A location, a receiving means for receiving a transmitted the voice data and the identifier from the first transmission means, second generating data representative of the masker sound based on the audio data received by said receiving means Generating means, storage means for storing the data generated by the second generating means in association with the identifier received by the receiving means, and corresponding to the identifier transmitted from the acquiring means in the storage means A masking system comprising a server device comprising second transmitting means for transmitting data to the terminal device.

The present invention is a computer, a data generating means for generating audio data representing the picked-up sound sound pickup means for picking up a sound, and the audio data generated by said data generating means, from the sound transmitting means for transmitting an identifier to uniquely identify the user of the generated masker sound to a predetermined server apparatus, it transmits the identifier to the server device, associated with the identifier the transmission at the server device Data generated based on the audio data transmitted from the transmission unit, the acquisition unit acquiring the data representing the masker sound from the server device, and the data acquired by the acquisition unit Provided is a program for causing a masker sound generating means to generate a signal representing a masker sound.

  According to the present invention, it is possible to mask a conversation at a destination even if a person who has a conversation moves.

The figure which showed the structure of the masking system 1 which concerns on one Embodiment of this invention. The figure which showed the hardware constitutions of the mobile telephone 10. The figure which showed the hardware constitutions of the server apparatus. The figure which showed the content of the masker sound table TB. The figure for demonstrating the operation | movement at the time of producing | generating a masker sound file. The figure which showed the screen which the mobile telephone 10 displays. The figure which showed the screen which the mobile telephone 10 displays. The figure which showed the screen which the mobile telephone 10 displays. The figure which showed the screen which the mobile telephone 10 displays. The figure for demonstrating the operation | movement when acquiring a masker sound file. The figure which showed the screen which the mobile telephone 10 displays. The figure which showed the screen which the mobile telephone 10 displays.

[Embodiment]
(overall structure)
FIG. 1 is a diagram showing an apparatus constituting a masking system 1 according to an embodiment of the present invention. The masking system 1 includes a large number of mobile phones (terminal devices) and server devices. In order to prevent the drawing from becoming complicated, in FIG. 1, one mobile phone 10 and one server device are provided. Only 40 is shown.

  The mobile communication network 30A is a communication network that provides the mobile phone 10 with a voice call service and a data communication service. The mobile communication network 30A is a radio base station that performs radio communications with the mobile phone 10, a switch connected to the radio base station, a switch and a gateway switch connected to the fixed telephone network, and a data exchange connected to the gateway switch and the Internet 30B. Has a gateway server (both not shown). The mobile communication network 30A provides a voice communication service and a data communication service using packet communication to the mobile phone 10 owned by a person who has subscribed to a communication carrier that operates the mobile communication network 30A. In addition, the mobile communication network 30A relays data communication performed between the server device 40 connected to the Internet 30B and the mobile phone 10.

The server device 40 is a computer device that functions as a server of a client-server system, and is connected to the Internet 30B. The server device 40 has a function of generating and storing masker sound data representing a masker sound that masks the voice of the user of the mobile phone 10 and providing the stored masker sound data to the mobile phone 10.
The mobile phone 10 is a mobile phone owned by a user (not shown), and can receive various communication services provided by the mobile communication network 30A. In addition, the mobile phone 10 has a function of performing data communication with the server device 40, acquiring masker sound data from the server device 40, and reproducing the acquired masker sound data.

(Configuration of mobile phone 10)
FIG. 2 is a diagram illustrating a hardware configuration of the mobile phone 10. As shown in FIG. 2, each part of the mobile phone 10 is connected to the bus 101. Each unit of the cellular phone 10 exchanges data between the units via the bus 101.

The communication unit 108 has a function of an interface for performing wireless communication, and mobile communication is performed via an antenna (not shown) connected to the communication unit 108 under the control of a CPU (Central Processing Unit) 102. Wireless communication is performed with the wireless base station of the network 30A. The communication unit 108 can perform voice communication and data communication at the same time, and transmits and receives digitized voice signals and data used in data communication.
When the communication unit 108 receives an audio signal or data transmitted from the radio base station, the communication unit 108 supplies the received audio signal to the audio processing unit 109 and supplies the received data to the CPU 102. Further, when data related to data communication is supplied, the communication unit 108 transmits this data to the radio base station. Further, when the digitized audio signal is supplied from the audio processing unit 109, the communication unit 108 transmits the audio signal to the radio base station.

  The audio processing unit 109 includes a speaker and a microphone that is an example of a sound collection unit that collects sounds around the mobile phone 10. When sound is input to the microphone, the sound processing unit 109 generates a sound signal obtained by digitizing the input sound and supplies the sound signal to the communication unit 108. In addition, when an audio signal is supplied, the audio processing unit 109 converts the audio signal into an analog signal and supplies the analog audio signal to the speaker.

The display unit 107 includes, for example, a liquid crystal display device, and displays characters, a graphic screen, a menu screen for operating the mobile phone 10, and the like under the control of the CPU 102.
The operation unit 106 includes a plurality of keys for inputting a numeric keypad (not shown) and operation instructions. When the user of the mobile phone 10 operates these keys, a signal indicating the operated key is output from the operation unit 106 to the CPU 102. Further, the operation unit 106 has a transparent touch sensor having a rectangular shape by a capacitance method. The touch sensor is disposed so as to cover the entire surface of the liquid crystal display device of the display unit 107, and transmits an image displayed on the liquid crystal display device. The touch sensor detects a position where the user touches with a finger in a rectangular area, and outputs a signal indicating the detected position to the CPU 102.
The storage unit 105 is a non-volatile memory, and stores various data such as data for controlling the mobile phone 10 and a masker sound file. In addition, the storage unit 105 stores an application program (hereinafter referred to as a masker sound application) that realizes functions related to generation and playback of a masker sound file.

  Various programs executed by the CPU 102 are stored in a ROM (Read Only Memory) 103, an initialization program for initializing the CPU 102 and each part of the mobile phone, and an OS (Operating System) for controlling the entire mobile phone 10. A program, a program for realizing a data communication function, a voice communication function, and the like are stored. A RAM (Random Access Memory) 104 is used as a work area when the CPU 102 executes a program, and stores data used when the CPU 102 executes the program.

  The CPU 102 is a control unit that controls each unit of the mobile phone 10. When the mobile phone 10 is turned on (not shown), the CPU 102 reads and executes an initialization program from the ROM 103, and initializes the CPU 102 and initializes each part of the mobile phone 10. When the CPU 102 finishes executing the initialization program, it reads out and executes the OS program and various programs from the ROM 103. When the CPU 102 executes the OS program, various functions as a mobile phone are realized, and the mobile phone 10 can perform voice communication and data communication. Further, the CPU 102 specifies a user operation based on a signal sent from a key of the operation unit 106 or a touch sensor, and performs various controls. Further, when the CPU 102 executes the OS program, the masker sound application stored in the storage unit 105 can be executed.

(Configuration of server device 40)
FIG. 3 is a block diagram illustrating a hardware configuration of the server device 40. As shown in the figure, each unit of the server device 40 is connected to a bus 401, and various data are exchanged via the bus 401.

  The operation unit 406 includes devices for operating the server device 40 such as a keyboard and a mouse. When these devices are operated by an operator of the server device 40, the CPU 402 performs various processes in accordance with the performed operations. The display unit 407 includes a liquid crystal display device, and displays a menu screen for operating the server device 40, data included in the server device 40, and the like under the control of the CPU 402. The communication unit 410 is connected to the Internet 30B and functions as an interface for communicating with other devices via the Internet 30B.

  The storage unit 405 is a hard disk device, and stores an OS program that realizes an operating system function in the server device 40. In addition, the storage unit 405 stores an application program that realizes in the server device 40 a function of generating a masker sound, a function of storing the masker sound in the storage unit 405, a function of transmitting the masker sound to the mobile phone 10, and the like. Yes. The storage unit 405 stores a masker sound table TB. FIG. 4 is a diagram showing an example of the masker sound table TB. The table shown in FIG. 4 has a “user identifier” field, a “password” field, and a “file name” field. In the “file name” field, the file name of the file representing the masker sound is stored. The “user identifier” field stores an identifier for uniquely identifying the user of the masker sound. In the “password” field, a password for authenticating the user of the masker sound is stored.

(Operation of the embodiment)
Next, regarding the operation of the present embodiment, the operation when generating a masker sound file will be described first. First, when the user of the mobile phone 10 performs an operation for instructing activation of the masker sound application on the operation unit 106, the CPU 102 reads the masker sound application from the storage unit 105 and executes it. When the masker sound application is executed, the display unit 107 is controlled by the CPU 102 and the screen shown in FIG. 6 is displayed. FIG. 6 shows an example of a screen displayed for selecting either a masker sound file generation process or a masker sound file playback process. When the user performs an operation of touching the “generate masker sound file” button while the screen is displayed, the masker sound file generation process shown in FIG. 5 is executed. When the user performs an operation of touching the “acquire masker sound” button, a masker sound acquisition process and a reproduction process described later are executed. When the user performs an operation of touching the “end” button, the CPU 102 ends the execution of the masker sound application.

  When the user touches the “Generate masker sound file” button on the screen shown in FIG. 6, the CPU 102 causes the display unit 107 to display a text to be read aloud as shown in FIG. 7 (step S <b> 101). Here, when the user touches the recording start button displayed on the screen and starts reading the sentence, the voice processing unit 109 collects data representing the user's voice (hereinafter referred to as voice data). The voice data is stored in the storage unit 105 (step S102). In other words, the CPU 102 functions as a data generation unit that generates data representing sound. The reason why the voice data of the user is collected and stored is that the voice of the user who uses the masker sound is used when generating the masker sound. Next, when the user finishes reading the sentence aloud and touches the recording end button shown in FIG. 7, the screen shown in FIG. 8 is displayed.

  The screen of FIG. 8 includes a text box in which an identifier for identifying a user who uses a masker sound is input, and a text box in which a password for authenticating the user is input. When the screen of FIG. 8 is displayed, the user operates the operation unit 106 to input an identifier for identifying the user who uses the masker sound and a password for authenticating the user. When the user performs an operation of touching the displayed generation button after inputting the identifier and password, the CPU 102 acquires the identifier and password input in the text box (step S104). When acquiring the identifier and password, the CPU 102 controls the communication unit 108 to transmit the audio data stored in the storage unit 105 and the acquired identifier and password to the server device 40 (step S105). Here, the CPU 102 and the communication unit 108 function as a transmission unit that transmits data.

  The voice data, identifier, and password transmitted from the mobile phone 10 are sent to the server device 40 via the mobile communication network 30A and the Internet 30B, and are received by the communication unit 410. The voice data, identifier, and password received by the communication unit 410 are stored in the storage unit 405 (step S106). When the audio data is stored in the storage unit 405, the CPU 402 generates a file representing a masker sound (hereinafter referred to as a masker sound file) from the audio data stored in the storage unit 405, and the generated masker sound file is stored in the storage unit 405. It is stored in 405 (step S107). As a method for generating a masker sound file, the method disclosed in Japanese Patent Application Laid-Open No. 2008-233671 is adopted in this embodiment, and first, the sound represented by the sound data is divided into a plurality of frames. Next, the divided sound is replaced with a reverse waveform in each frame, and the process of smoothing the connection between the frames is performed. Then, the order of the frames is randomly rearranged to generate a masker sound. Generate a masker sound file to represent. Note that the method of generating the masker sound is not limited to the method disclosed in Japanese Patent Application Laid-Open No. 2008-233671. For example, the sound represented by the audio data is divided into a plurality of frames, and the divided frames are divided. The rearranged sound may be a masker sound.

  When generating the masker sound file, the CPU 402 stores the file name of the generated masker sound file in the masker sound table TB in association with the identifier and password transmitted from the mobile phone 10 (step S108). When the file name is stored in the masker sound table TB, the CPU 402 controls the communication unit 410 to transmit a message notifying that the masker sound file has been generated (step S109). The message transmitted from the server device 40 is sent to the mobile phone 10 via the Internet 30B and the mobile communication network 30A, and is received by the communication unit 108. When the message received by the communication unit 108 is supplied to the CPU 102, the CPU 102 displays the message shown in FIG. 9 on the display unit 107 (step S110). Thereby, the user can know that the masker sound of his / her voice is stored in the server device 40. Thereafter, when the user performs an operation of touching the return button in FIG. 9, the screen shown in FIG. 6 is displayed.

  Next, an operation when acquiring and reproducing a masker sound file stored in the server device 40 will be described. First, in the state where the screen shown in FIG. 6 is displayed, if the user performs an operation of touching the “acquire masker sound file” button, the masker sound file acquisition process and playback process shown in FIG. 10 are performed. Done. Specifically, when the user performs an operation of touching the “acquire masker sound file” button on the screen shown in FIG. 6, the CPU 102 displays the screen shown in FIG. 11 on the display unit 107 (step S201). . The screen of FIG. 11 includes a text box in which an identifier for identifying a user who uses a masker sound is input, and a text box in which a password for authenticating the user is input. When the screen of FIG. 11 is displayed, the user operates the operation unit 106 to input the identifier and password that were input when generating the masker sound. After the user inputs the identifier and password, when the user performs an operation of touching the displayed “Acquire masker sound file” button, the CPU 102 acquires the identifier and password input in the text box (step S202). . When acquiring the identifier and password, the CPU 102 controls the communication unit 108 to transmit the acquired identifier and password to the server device 40 (step S203).

The identifier and password transmitted from the mobile phone 10 are sent to the server device 40 and received by the communication unit 410. The identifier and password transmitted from the mobile phone 10 are sent to the server device 40 and received by the communication unit 410. Then, the identifier and password received by the communication unit 410 are supplied to the CPU 402. CPU402 will acquire a masker sound file from the memory | storage part 405, if an identifier and a password are supplied (step S204). Specifically, the CPU 402 searches the masker sound table TB for the received identifier. If the retrieved identifier is stored in the masker sound table TB, it is determined whether the password associated with the retrieved identifier is the same as the received password. If the passwords are the same, the CPU 402 acquires a masker sound file specified by the file name associated with the searched identifier from the storage unit 405. When acquiring the masker sound file, the CPU 402 transmits the acquired masker sound file to the mobile phone 10 (step S205). The masker sound file transmitted from the server device 40 is sent to the mobile phone 10 via the Internet 30B and the mobile communication network 30A, and is received by the communication unit 108.
As described above, the CPU 102 and the communication unit 108 function as an acquisition unit that acquires the masker sound file by transmitting the identifier and the password.

  When the masker sound file is received by the communication unit 108, the CPU 102 stores the received masker sound file in the storage unit 105 (step S206). When the CPU 102 stores the masker sound file in the storage unit 105, the CPU 102 displays the screen shown in FIG. 12 on the display unit 107 (step S207). Thereby, the user can know that the mobile phone 10 has acquired the masker sound file. Next, when an operation of touching the reproduction button shown in FIG. 12 is performed, a masker sound file is reproduced (step S208). Specifically, the stored masker sound file is supplied to the sound processing unit 109. When the masker sound file is supplied, the sound processing unit 109 generates a masker sound signal represented by the masker sound file, and supplies the generated sound signal to the speaker. Here, the CPU 102 and the sound processing unit 109 function as a masker sound generating unit that generates a signal representing a masker sound. Thereby, the masker sound generated from the user's voice is emitted from the speaker of the mobile phone 10. That is, when the user has a conversation with a masker sound generated from the user's voice being emitted from the speaker of the mobile phone 10, the user's own voice is masked by the emitted masker sound. When the user ends the conversation and ends the reproduction of the masker sound file, the user touches the end button shown in FIG. When this operation is performed, the CPU 102 stops reproduction of the masker sound file and erases the masker sound file stored in the storage unit 105.

  As described above, according to the present embodiment, since the user's voice is masked with the masker sound generated from the user's voice, a high masking effect can be obtained. The generation of the masker sound file is a process that places a load on the CPU, but since this process is not performed by the mobile phone 10, the load on the CPU of the mobile phone 10 can be suppressed. In addition, since the masker sound file is stored in the server device 40, the masker sound file can be downloaded at any place and time where the masker sound is required as long as it can be connected to the mobile communication network 30A or the Internet 30B. You can get and play freely. For example, if a personal computer provided with a speaker and installed with a masker sound application is connected to the Internet 30B, the masker sound file can be acquired from the server device 40 by inputting the identifier and password, and the masker sound can be reproduced. In this case, even if there is a personal computer in a conference room or the like in a building where radio waves from the mobile communication network 30A do not reach, a masker sound file can be acquired to mask the user's voice.

[Modification]
As mentioned above, although embodiment of this invention was described, this invention is not limited to embodiment mentioned above, It can implement with another various form. For example, the present invention may be implemented by modifying the above-described embodiment as follows. In addition, you may combine each of embodiment mentioned above and the following modifications.

  The terminal device on which the masker sound application is installed is not limited to the mobile phone 10. For example, a PDA (Personal Digital Assistant) or a personal computer may be used as long as it is a device that includes a microphone and a speaker and can connect to the mobile communication network 30A or the Internet 30B and communicate with the server device 40.

  In the embodiment described above, when the reproduction of the masker sound file is stopped, the masker sound file stored in the storage unit 105 is deleted. However, the masker sound file is not deleted, but is stored in the storage unit 105. May be. In this case, when an operation of touching the “play masker sound file” button is performed, the CPU 102 determines whether or not the masker sound file is stored in the storage unit 105. If the masker sound file is not stored, the CPU 102 performs the above-described operation. Do. On the other hand, when the masker sound file is stored in the storage unit 105, the masker sound file stored in the storage unit 105 is acquired and reproduced.

  In the present invention, the sound around the mobile phone 10 is picked up by the microphone of the sound processing unit 109 during the reproduction of the masker sound file, and the volume of the masker sound is controlled according to the sound volume other than the picked up masker sound. May be. For example, the volume of the masker sound may be reduced when the volume of the sound other than the masker sound is low, and the volume of the masker sound may be increased when the volume of the sound other than the masker sound is high.

  In the embodiment described above, only the voice of the user of the mobile phone 10 is collected to generate voice data, and a masker sound file is generated from this voice data. At the same time, sound may be collected to generate sound data, and a masker sound file may be generated from the sound data. According to this configuration, not only the user's voice but also the voice of the user's speaking partner can be masked. In addition, when there are a plurality of speaking partners at a meeting or the like, the voices of the plurality of speaking partners may be collected to generate a masker sound file. In addition, when talking by a plurality of people, each person may emit a masker sound with the mobile phone 10.

In the present invention, when sound data is generated from sound picked up by a microphone, sound data obtained by cutting background noise simultaneously picked up by filtering may be generated. Further, voice data including background noise may be generated without cutting background noise.
Also, when generating a masker sound file, location information indicating the location where the sound is collected may be input, and the input location information may be stored in the masker sound table TB in association with the file name of the masker sound file. . Further, when generating a masker sound file, sound may be collected at a plurality of different locations, and a masker sound file may be generated and stored for each location. When acquiring a masker sound file, the location information of the place where the sound was collected when the masker sound file was generated is input, and the masker sound file associated with the input location information is transmitted from the server device 40 to the mobile phone 10. You may make it transmit to.

In the above-described embodiment, the content of the voice data is obtained by reading a predetermined sentence by the user. However, the contents of the voice data are not limited to those obtained by reading the predetermined sentence aloud. For example, a user's voice during a meeting may be recorded in a meeting room, and a masker sound file may be generated from the voice data of the recorded voice, or a user's voice during a meal may be recorded in a restaurant and recorded. A masker sound file may be generated from voice data. In addition, in this way, a masker sound file is generated and stored in the server device 40 every time the location and the content of the conversation are different, and when in the conference room, the masker sound file generated from the voice recorded in the conference room is acquired. When the user is at a restaurant, the masker sound file generated from the sound recorded at the restaurant may be acquired and reproduced.
Alternatively, the mobile phone 10 may collect voice and background noise during a voice call, and generate a masker sound file from the voice data of the collected voice. In this configuration, the voice of the other party that is emitted from the mobile phone 10 during a voice call may be cut from the collected voice.

  In the present invention, when the generation of the masker sound file is charged and the server device 40 generates the masker sound file, the price of the masker sound file is collected from the user of the mobile phone 10 that transmits the voice data. Also good. In addition, a use time limit may be provided for use of the masker sound file, and a masker sound file that has exceeded the use time limit may not be reproduced. In addition, when the generation of the masker sound file is charged and the expiration date of the masker sound file is set, the charge to be collected may be varied depending on the expiration date of the masker sound file. For example, the fee to be collected may be increased when the expiration date is long, and the fee to be collected may be decreased when the expiration date is short. In addition, when generating a masker sound file for a fee, a plurality of masker sound files may be generated for each sound quality, and the charges to be collected may be varied according to the sound quality of the masker sound file.

  In the embodiment described above, when a masker sound file generated from the voice of the other party using the mobile phone 10 is acquired from the other party, and a voice call is made between the other party and the mobile phone 10, the masker acquired from the other party is obtained. The sound file may be played back.

  In the present invention, the identifier for identifying the user may be an individual identification number that uniquely identifies the mobile phone 10. Further, it may be a number unique to a SIM (for example, IMSI (International Mobile Subscriber Identity)) assigned to a SIM (Subscriber Identity Module) attached to the mobile phone 10.

  The masker sound application stored in the mobile phone 10 described above includes a magnetic recording medium (magnetic tape, magnetic disk (HDD (Hard Disk Drive), FD (Flexible Disk), etc.)), optical recording medium (optical disk (CD (Compact)). Disc), DVD (Digital Versatile Disk)), etc., a magneto-optical recording medium, a semiconductor-readable recording medium such as a semiconductor memory, and the like may be provided and installed in the mobile phone 10. Alternatively, the masker sound application may be downloaded via the mobile communication network 30A or the Internet 30B and installed in the mobile phone 10.

DESCRIPTION OF SYMBOLS 1 ... Masking system, 10 ... Mobile phone, 30A ... Mobile communication network, 30B ... Internet, 40 ... Server apparatus, 101 ... Bus, 102 ... CPU, 103 ... ROM, 104 ... RAM, 105 ... Memory | storage part, 106 ... Operation 107, display unit, 108 ... communication unit, 109 ... audio processing unit, 401 ... bus, 402 ... CPU, 403 ... ROM, 404 ... RAM, 405 ... storage unit, 406 ... operation unit, 407 ... display unit, 410 ... communication department

Claims (8)

Sound collection means for collecting sound;
Data generating means for generating sound data representing the sound collected by the sound collecting means;
And the audio data generated by said data generating means, transmitting means for transmitting an identifier to uniquely identify the user of the masker sound generated from the sound to a predetermined server apparatus,
The identifier is transmitted to the server device, is associated with the transmitted identifier in the server device, and is generated based on the voice data transmitted from the transmitting means, and the masker sound is Obtaining means for obtaining data representing the server device;
A masker sound generating means for generating a signal representing the masker sound from the data acquired by the acquiring means;
A terminal device comprising: sound emitting means for emitting the sound represented by the signal generated by the masker sound generating means.   The terminal device according to claim 1, wherein the sound collection unit collects a sound emitted by a person and background noise around the sound collection unit.   The terminal device according to claim 1, wherein the sound collection unit collects a sound generated by a human, and the sound generated by the human is a sound obtained by reading a predetermined sentence aloud.   The terminal device according to claim 1, wherein the sound collection unit collects a sound generated by a human, and the sound generated by the human is a conversational sound. The human-generated sound is collected at a plurality of locations,
The masker sound data is generated for each of the plurality of locations,
5. The masker sound data generated from the sound data picked up at the selected place is selected from any of the plurality of places. 5. The terminal device described in 1. Receiving means for receiving sound data representing the sound collected by the sound collecting means, and an identifier for uniquely identifying a user of the masker sound generated from the sound;
Generating means for generating data representing the masker sound based on the audio data received by the receiving means;
Storage means for storing the data generated by the generating means in association with the identifier received by the receiving means;
A server device comprising: a transmission unit configured to transmit, to the terminal device, data associated with the identifier transmitted from the terminal device in the storage unit. Sound collection means for collecting sound;
First generation means for generating sound data representing the sound collected by the sound collection means;
And the audio data generated by said first generating means, a first transmission means for transmitting an identifier to uniquely identify the user of the masker sound generated from the sound to a predetermined server apparatus,
The identifier is transmitted to the server device, is associated with the transmitted identifier in the server device, and is generated on the basis of the audio data transmitted from the first transmission means, the masker Obtaining means for obtaining data representing sound from the server device;
A masker sound generating means for generating a signal representing the masker sound from the data acquired by the acquiring means;
A terminal device comprising: sound emitting means for emitting the sound represented by the signal generated by the masker sound generating means;
Receiving means for receiving the audio data and the identifier transmitted from the first transmitting means;
Second generating means for generating data representing the masker sound based on the audio data received by the receiving means;
Storage means for storing the data generated by the second generation means in association with the identifier received by the reception means;
A masking system comprising: a server device comprising: a second transmission unit configured to transmit, to the terminal device, data associated with the identifier transmitted from the acquisition unit in the storage unit. Computer
Data generating means for generating sound data representing the sound collected by the sound collecting means for collecting the sound;
And the audio data generated by said data generating means, transmitting means for transmitting an identifier to uniquely identify the user of the masker sound generated from the sound to a predetermined server apparatus,
The identifier is transmitted to the server device, is associated with the transmitted identifier in the server device, and is generated based on the voice data transmitted from the transmitting means, and the masker sound is Obtaining means for obtaining data representing the server device;
The program for functioning as a masker sound production | generation means which produces | generates the signal showing the said masker sound from the data acquired by the said acquisition means.

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