JP2005086686A - Electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide electronic equipment capable of easily and quickly adjusting frequency characteristics in voice outputted by a speaker. <P>SOLUTION: The characteristic information on the frequency characteristics in the voice outputted from a speaker 12 is supplied to a communication terminal 3 from an onboard device 2 via a memory stick and then is transmitted to a server device 5 via the Internet 4. In the server device 5, a parameter is obtained based, on the characteristic information, where the parameter determines the frequency characteristics in the voice outputted by the speaker 12. The parameter is transmitted to the communication terminal 3 via the Internet 4 and then is supplied to the onboard device 2 via the memory stick. A voice characteristic adjustment section 18 in the onboard device 2 performs adjustment on the basis of the parameter supplied from the server device 5, so that the frequency characteristics in the voice outputted by the speaker 12 become optimum, for example, sound pressure frequency characteristics in the voice become flat. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an electronic apparatus such as an audio apparatus that reproduces a compact disk (abbreviation: CD).

  A conventional in-vehicle audio system (hereinafter sometimes simply referred to as “audio system”) is connected to a center server via the Internet. Pink noise is output from the speaker of the audio system mounted on the vehicle, and the output pink noise is collected using the microphone of the audio system. The collected pink noise is analyzed by a microcomputer to obtain data on the frequency characteristics of the sound in the vehicle. Data relating to the frequency characteristics of the voice is transmitted to the center server via the Internet. The center server receives the data transmitted from the audio system and holds the received data as an acoustic database. The center server extracts data for adjusting the acoustic characteristics of the audio system according to the data from the acoustic database based on the data relating to the frequency characteristics transmitted from the audio system, and extracts the extracted data from the Internet. To the audio system via In the audio system, data for adjusting the acoustic characteristics transmitted from the center server is received, and the acoustic characteristics of the audio system are adjusted based on the received data (for example, see Patent Document 1).

JP 2002-67815 A

  In the conventional technology, every time the acoustic characteristics of the audio system are adjusted, the pink noise output from the speaker is collected using a microphone, and the collected pink noise is analyzed. Data related to frequency characteristics is acquired. Then, this data is transmitted to the center server, and the acoustic characteristics of the audio system are adjusted based on the data for adjusting the acoustic characteristics of the audio system transmitted from the center server.

  However, since the data related to the frequency characteristics of the sound output from the speaker and acquired in the vehicle changes depending on the position of the speaker that outputs the sound and the distance from the position of the microphone to the installation position of the speaker. In the method for adjusting the acoustic characteristics of the audio system in, it is difficult to adjust so as to realize the acoustic characteristics of the audio system in accordance with the situation in the vehicle such as the listener's boarding position by a single adjustment operation. For this reason, in the prior art, until the acoustic characteristics of the audio system according to the situation in the vehicle, such as the listener's boarding position, are realized, and the acquisition of data related to the frequency characteristics of the sound in the vehicle The operation for adjusting the acoustic characteristics of the audio system based on the data for adjusting the acoustic characteristics according to the data must be repeated.

  Therefore, the operation of acquiring data related to the frequency characteristics of the sound and the operation of adjusting the acoustic characteristics of the audio system are complicated for the user and the acoustic characteristics of the audio system according to the situation in the vehicle are realized. The problem is that it takes a lot of time.

  The objective of this invention is providing the electronic device which can adjust the frequency characteristic of the audio | voice output with a speaker easily and in a short time.

The present invention provides an audio output means for outputting audio;
Voice input means for inputting voice output from the voice output means;
A characteristic output means for outputting characteristic information related to the frequency characteristic of the input voice to an external device;
Parameter input means for inputting parameters for determining the frequency characteristics of the sound output by the sound output means;
An electronic device comprising: sound characteristic adjusting means for adjusting frequency characteristics of sound output by the sound output means based on input parameters.

  Further, the present invention is characterized in that the characteristic output means is a recording means on which a recording medium is detachably attached and information is recorded on the attached recording medium.

  Further, the present invention is characterized in that the parameter input means is a reproduction means for removably loading a recording medium and reproducing information recorded on the loaded recording medium.

Furthermore, the invention is characterized in that the recording medium is a semiconductor memory.
Furthermore, the present invention is characterized in that the characteristic output means is wireless communication means for performing wireless communication with an external device via wireless radio waves and transmitting information to the external device.

  Furthermore, the present invention is characterized in that the parameter input means is wireless communication means for performing wireless communication with an external device via wireless radio waves and receiving information transmitted from the external device.

  According to the present invention, sound is output from the sound output means, and the output sound is input to the sound input means. The characteristic output means outputs characteristic information related to the frequency characteristic of the input voice to the external device. In the external device, a parameter for determining the frequency characteristic of the sound output by the sound output means is obtained based on the characteristic information. When this parameter is input to the parameter input means, the sound characteristic adjusting means, for example, adjusts the sound pressure of the sound so that the frequency characteristic of the sound output by the sound output means is optimized based on the input parameter. Adjust the frequency characteristics to be flat.

  As described above, the characteristic output unit outputs characteristic information related to the frequency characteristic of the voice input to the voice input unit to the external device, and the frequency of the voice output by the voice output unit obtained by the external device. For example, the sound pressure frequency characteristic of the voice is flattened so that the sound frequency adjusting means can optimize the frequency characteristic of the sound output by the sound output means simply by inputting a parameter for determining the characteristic to the parameter input means. Thus, it can be adjusted easily.

  According to the invention, the characteristic output means is a recording means on which a recording medium is detachably attached and records information on the attached recording medium. Therefore, the characteristic information can be easily obtained by the characteristic output unit simply by mounting the recording medium on which the characteristic information related to the frequency characteristic of the voice output from the voice output unit and input to the voice input unit is recorded. Can be recorded on a recording medium.

  According to the invention, the parameter input means is a reproduction means for reproducing information recorded on the attached recording medium with the recording medium being detachably attached thereto. Therefore, the parameters can be easily reproduced by the parameter input means simply by mounting the recording medium in which the parameters for determining the frequency characteristics of the sound output by the sound output means obtained by the external device are recorded in the electronic device. be able to. Thus, every time the sound characteristic of the electronic device is adjusted, the operation for obtaining the parameter for determining the frequency characteristic of the sound output by the sound output means and the operation for adjusting the frequency characteristic of the sound based on the parameter are repeated. There is no need to do it. Therefore, the frequency characteristics of the sound output by the sound output means can be adjusted easily and in a short time based on the parameters recorded on the recording medium, and convenience is improved.

  According to the present invention, a semiconductor memory such as a flash memory is used as the recording medium. The flash memory can record and reproduce information in a short time, and is relatively small and lightweight, so it can be easily carried and convenience is improved.

  Further, according to the present invention, the characteristic output means is a wireless communication means for performing wireless communication with an external device via radio waves and transmitting information to the external device. Therefore, the frequency characteristics of the sound input to the sound input means Can be transmitted to the external device via wireless radio waves.

  Therefore, the user attaches a recording medium such as a semiconductor memory to the electronic device, records the characteristic information on the recording medium, attaches the recording medium on which the characteristic information is recorded to the external device, and records it on the recording medium. Since it is not necessary to reproduce the characteristic information to be performed by an external device, it is possible to save the user from the aforementioned work. Also, by transmitting the characteristic information to the external device via a radio wave, it takes a longer time to supply the characteristic information to the external device than when supplying the characteristic information to the external device using a recording medium. It can be shortened.

  According to the present invention, the parameter input means is a wireless communication means for performing wireless communication with an external device via a radio wave and receiving information transmitted from the external device. When information, for example, a parameter for determining the frequency characteristic of sound output by the sound output means is transmitted, the parameter transmitted from the external device can be received.

  Therefore, the user attaches a recording medium such as a semiconductor memory to an external device, records the information on the recording medium, attaches the recording medium on which the information is recorded to the electronic device, and records the information on the recording medium. Since there is no need to reproduce information on the electronic device, the user's trouble of the above-mentioned work can be saved. Also, the time taken to acquire the information of the external device by receiving the information transmitted from the external device via wireless radio waves as compared with the case of acquiring the information from the external device using a recording medium. Can be shortened.

  FIG. 1 is a block diagram showing a simplified configuration of an audio characteristic adjustment system 1 according to an embodiment of the present invention. The sound characteristic adjustment system 1 includes an in-vehicle device 2, a communication terminal device 3, and a server device 5. In the voice characteristic adjustment system 1, the communication terminal device 3 and the server device 5 are communicably connected via a public line network. In the present embodiment, the public line network is the Internet 4. The in-vehicle device 2 is an electronic device mounted on a vehicle such as an automobile, and is realized by an audio device that reproduces, for example, a compact disc (abbreviation: CD), a mini disc (abbreviation: MD), and the like. The The communication terminal device 3 is realized by a personal computer, for example.

  The in-vehicle device 2 includes a CPU (Central Processing Unit) 11, a speaker 12, a microphone 13, an input unit 14, a display unit 15, a ROM (Read Only Memory) 16, a RAM (Random Access Memory) 17, an audio characteristic adjustment unit 18, and a memory. A stick slot 19 and a memory stick controller 20 are included.

  The CPU 11 is based on a program stored in advance in a ROM 16 to be described later. The speaker 12, the microphone 13, the input unit 14, the display unit 15, the ROM 16, the RAM 17, the sound characteristic adjusting unit 18, and the memory stick constituting the in-vehicle device 2. The hardware resources including the slot 19 and the memory stick control unit 20 are controlled.

  The speaker 12 is sound output means for outputting sound. The microphone 13 is a voice input unit that converts input voice into a voice signal. The input unit 14 is a parameter input unit that inputs parameters for determining the frequency characteristics of sound output from a speaker.

  The input unit 14 has parameters for determining the frequency characteristics of the sound output from the speaker 12 and the power key of the in-vehicle device 2, the numeric key, the function key set with predetermined input information and the sound reproduction mode for reproducing sound. Based on this, a switching key for switching between the sound characteristic adjustment mode for adjusting the frequency characteristic of the sound output by the speaker 12 is included. When a predetermined key on the input unit 14 is pressed by the user, an operation instruction signal for the in-vehicle device 2 based on the predetermined key is transmitted to the CPU 11.

  The display unit 15 displays image information and information related to the operation state of the in-vehicle device 2 based on the display operation control signal output from the CPU 11. More specifically, the display unit 15 displays, for example, equalizer information indicating the sound pressure level for each frequency band and parameters determined by the server device 5 for determining the frequency characteristics of the sound output by the speaker 12. The display unit 15 is realized by, for example, a liquid crystal display and an electroluminescence display.

  The ROM 16 stores an operation program necessary for the on-vehicle device 2 to operate. The ROM 16 is realized by a flash memory which is a nonvolatile memory, for example. The RAM 17 stores a product serial number of the in-vehicle device 2, a product model name, parameters for determining frequency characteristics of sound output from the speaker 12, and the like.

  The sound characteristic adjusting unit 18 is a sound characteristic adjusting unit that adjusts the frequency characteristic of the sound output by the speaker 12 based on a parameter that determines the frequency characteristic of the sound output by the speaker 12.

  A memory stick, which is a kind of flash memory, is detachably attached to the memory stick slot 19. The memory stick control unit 20 performs a process of recording information on a memory stick mounted in the memory stick slot 19 and a process of reproducing information recorded on the memory stick.

  The memory stick slot 19 and the memory stick control unit 20 are output from the speaker 12 of the in-vehicle device 2 and output characteristic information related to the frequency characteristic of the sound acquired in the vehicle to an external device, for example, the communication terminal device 3. Means. The CPU 11, the memory stick slot 19 and the memory stick control unit 20 are recording means for recording information on the attached recording medium. The CPU 11, the input unit 14, the memory stick slot 19 and the memory stick control unit 20 are installed. The reproducing means reproduces information recorded on the recorded recording medium.

The communication terminal device 3 includes a CPU (Central Processing Unit) 31 and a ROM (Read Only).
Memory 32, RAM (Random Access Memory) 33, memory stick slot 34, and memory stick controller 35 are included.

  The CPU 31 controls hardware resources including the ROM 32, the RAM 33, the memory stick slot 34, and the memory stick control unit 35 constituting the communication terminal device 3 based on a program stored in the ROM 32 described later.

  The ROM 32 stores an operation program necessary for the communication terminal device 3 to operate. The ROM 32 is realized by a flash memory which is a nonvolatile memory, for example. The RAM 33 stores information recorded on a memory stick attached to the memory stick slot 34 and information transmitted from the server device 5 via the Internet 4.

  A memory stick, which is a kind of flash memory, is detachably attached to the memory stick slot 34. The memory stick control unit 35 performs processing for recording information on a memory stick mounted in the memory stick slot 34 and processing for reproducing information recorded on the memory stick.

  The server device 5 is a service dedicated server connected to the Internet 4. The server device 5 includes a parameter calculation unit 41. The parameter calculation unit 41 obtains a parameter for determining the frequency characteristic of the sound output from the speaker 12 based on the characteristic information related to the frequency characteristic of the sound output from the speaker 12 of the in-vehicle device 2 and acquired in the vehicle. Includes calculation program. The server device 5 obtains the parameter according to the calculation program. When the characteristic information is transmitted from the communication terminal device 3 via the Internet 4, the server device 5 receives the characteristic information. The parameter calculation unit 41 obtains the parameter based on the received characteristic information according to the program. The server device 5 transmits the obtained parameters to the communication terminal device 3 via the Internet 4.

  FIG. 2 is a flowchart for explaining a processing procedure for adjusting the frequency characteristic of the sound in the sound characteristic adjusting system 1. At the start of the process of adjusting the frequency characteristics of audio, the in-vehicle device 2 and the communication terminal device 3 can operate. The communication terminal device 3 and the server device 5 are connected to the Internet 4 and can communicate with each other via the Internet 4.

  In step S1, the CPU 11 determines whether or not the in-vehicle device 2 is set to the sound characteristic adjustment mode. In step S1, when it is determined that the in-vehicle device 2 is not set to the voice characteristic adjustment mode, the process proceeds to step S2, and when it is determined that the in-vehicle device 2 is set to the voice characteristic adjustment mode, the process proceeds to step S3. move on.

  In step S2, by operating the switch key of the input unit 14, the voice characteristic adjustment mode for adjusting the frequency characteristic of the voice output from the speaker 12 is set.

  In step S3, characteristic information related to the frequency characteristic of the sound in the vehicle is acquired. In order to obtain characteristic information, first, assume a predetermined position in the vehicle, for example, a driver's seat, a passenger seat, a left rear seat, a right rear seat, and the like, and the driver's boarding position at any one of the positions. A microphone 13 is arranged. An audio signal such as pink noise is output from the speaker 12 installed at a predetermined position, and the pink noise output from the speaker 12 is input to the microphone 13. The pink noise input to the microphone 13 is converted into an electrical signal and the signal analysis is performed by the CPU 11. As a result of this signal analysis, frequency characteristic information of pink noise input to the microphone 13, for example, information on the sound pressure level for each frequency band is obtained. By performing the above-described operation a plurality of times while changing the arrangement position of the microphone 13, for example, the position of the above-described seat, a plurality of frequency characteristic information at each seat position is acquired. Information including each acquired frequency characteristic information and a seat position, a speaker arrangement position, and a vehicle type of the vehicle related to the frequency characteristic information is stored in the RAM 17 as the characteristic information.

  In step S4, the memory stick is mounted in the memory stick slot 19 of the in-vehicle device 2. In step S5, the memory stick control unit 20 records the characteristic information stored in the RAM 17 on the memory stick. In step S6, the memory stick is detached from the memory stick slot of the in-vehicle device 2.

  In step S 7, the memory stick is inserted into the memory stick slot 34 of the communication terminal device 3. In step S <b> 8, the memory stick control unit 35 of the communication terminal device 3 reproduces the characteristic information recorded on the memory stick and stores it in the RAM 33.

  In step S <b> 9, the communication terminal device 3 transmits the characteristic information stored in the RAM 33 from the communication terminal device 3 to the server device 5 via the Internet 4.

  In step S <b> 10, the server device 5 receives the characteristic information transmitted from the communication terminal device 3. Then, according to a calculation program stored in the parameter calculation unit 41, a parameter for determining the frequency characteristic of the sound output from the speaker 12 of the in-vehicle device 2 is obtained based on the received characteristic information.

  Here, the parameters will be described in detail. Parameters representing parametric equalizer information, distance information from the listening position to the speaker, and information on the frequency band of sound output from each speaker 12 of the plurality of speakers 12, In the present embodiment, the parameters for adjusting the sound pressure frequency characteristics to be flat so that the frequency characteristics of the sound output from 12 are optimized. More specifically, the parameter is an adjustment amount of the sound pressure level in each frequency band. The parametric equalizer is a graphic equalizer that can divide the audible frequency band and adjust the sound pressure level of each band. An equalizer that can set the sharpness of the peaks, valleys, and center frequency in a curve for one frequency band to an arbitrary value. It is.

  In step S <b> 11, the server device 5 transmits the parameters obtained according to the computation program of the parameter computation unit 41 from the server device 5 to the communication terminal device 3 via the Internet 4.

  In step S <b> 12, the communication terminal device 3 receives the parameters transmitted from the server device 5 and stores the received parameters in the RAM 33. Then, the memory stick control unit 35 records the parameters stored in the RAM 33 on the memory stick. In step S <b> 13, the memory stick is removed from the memory stick slot 34 of the communication terminal device 3.

  In step S <b> 14, the memory stick is mounted in the memory stick slot 19 of the in-vehicle device 2. In step S15, the CPU 11 determines whether or not the in-vehicle device 2 is set to the sound characteristic adjustment mode. If it is determined in step S15 that the in-vehicle device 2 is not set to the voice characteristic adjustment mode, the process proceeds to step S16. If it is determined that the in-vehicle device 2 is set to the voice characteristic adjustment mode, the process proceeds to step S17. move on.

  In step S16, the sound characteristic adjustment mode for adjusting the frequency characteristic of the sound output from the speaker 12 is set.

  In step S17, the memory stick control unit 20 of the in-vehicle device 2 reproduces the parameters recorded on the memory stick. In step S18, the parameter reproduced by the memory stick control unit 20 is stored in the RAM 17, and the parameter for adjusting the sound characteristics stored in the RAM 17 in advance is deleted, thereby rewriting the parameter. The parameter rewriting is a process for preventing the storage capacity of the RAM 17 in the in-vehicle device 2 from being exceeded. Therefore, when there is no problem in the storage capacity, it is not necessary to rewrite the parameters.

  In step S <b> 19, the user refers to the parameter displayed on the display unit 15, inputs the parameter to the input unit 14, and the audio characteristic adjustment unit 18 optimizes the frequency characteristic of the audio output from the speaker 12. In the present embodiment, the sound pressure frequency characteristics of the sound are adjusted to be flat, and the process is terminated. If the boarding position and the parameter corresponding to the boarding position are displayed on the display unit 15, the user can select the parameter corresponding to the boarding position, and the frequency characteristics of the sound output from the speaker 12 can be further improved. In this embodiment, the sound pressure frequency characteristic of the sound can be adjusted to be flatter so as to be optimal. This improves convenience.

  As described above, in the sound characteristic adjustment system 1, the user of the in-vehicle device 2 simply inputs the characteristic information related to the frequency characteristic of the sound output from the speaker 12 and acquired in the vehicle to the communication terminal device 3. Good. Therefore, the user of the in-vehicle device 2 does not need to examine and grasp information such as the vehicle type of the vehicle on which the in-vehicle device 2 is mounted and the product name of the in-vehicle device in advance, as in the prior art. Can be reduced. Further, since the user does not need to manually input the information as in the prior art, it is possible to eliminate the complexity of manually inputting the information.

  Further, the parameter calculation unit 41 of the server device 5 in the audio characteristic adjustment system 1 outputs information such as a listener's boarding position based on characteristic information output from the speaker 12 and related to the frequency characteristic of audio acquired in the vehicle. The parameter that determines the output characteristic of the in-vehicle device 2 according to the situation in the vehicle, in other words, the frequency characteristic of the sound output by the speaker 12, can be easily and reliably obtained. Further, the sound characteristic adjusting unit 18 is simply input to the input unit 14 a parameter for determining the frequency characteristic of the sound output from the speaker 12, which is obtained by the parameter calculation unit 41 of the server device 5. Thus, in this embodiment, the sound pressure frequency characteristic of the sound can be easily adjusted so that the frequency characteristic of the sound output from the speaker 12 is optimized.

  In the voice characteristic adjustment system 1, the parameter obtained by the parameter calculation unit 41 of the server device 5 is transmitted from the server device 5 to the communication terminal device 3 via the Internet 4, and the communication terminal device 3 receives the transmitted parameter. After that, the memory stick control unit 20 can easily record the parameters on the memory stick only by mounting the memory stick as a recording medium in the memory stick slot 19 of the communication terminal device 3. In addition, a memory stick that is output from the speaker 12 of the in-vehicle device 2 and recorded with characteristic information related to the frequency characteristics of the sound acquired in the vehicle can be simply installed in the memory stick slot 34 of the communication terminal device 3. The characteristic information can be easily reproduced by the control unit 35.

  In addition, the memory stick control unit 20 simply installs the memory stick in which the parameters for determining the frequency characteristics of the sound output from the speaker 12 obtained by the server device 5 are installed in the memory stick slot 19 of the in-vehicle device 2. The parameters can be easily reproduced. This eliminates the need to repeatedly perform the operation for obtaining the parameter and the operation for adjusting the frequency characteristic of the sound based on the parameter every time the frequency characteristic of the sound output by the speaker 12 of the in-vehicle device 2 is adjusted. . Therefore, in this embodiment, the sound pressure frequency of the sound is reproduced so that the parameter recorded in the memory stick is immediately reproduced and the frequency characteristic of the sound output by the speaker 12 of the in-vehicle device 2 is optimized based on the parameter. It can be adjusted easily and in a short time so that the characteristics become flat, and convenience is improved.

  In the sound characteristic adjustment system 1, a memory stick which is a kind of flash memory is used as a recording medium. The memory stick can record and reproduce information in a short time, and is relatively small and can be easily carried, so that convenience is improved.

  In addition, by storing the parameters obtained by the parameter calculation unit 41 of the server device 5 and the characteristic information in the server device 5, it is possible to construct a database of information related to the adjustment of the voice characteristics based on the parameters and the characteristic information. it can. As a result, the user can easily obtain desired information from the database constructed in the server device 5, and convenience is improved.

  FIG. 3 is a block diagram showing a simplified configuration of an audio characteristic adjustment system 50 according to another embodiment of the present invention. The sound characteristic adjustment system 50 is similar to the sound characteristic adjustment system 1 described above, and corresponding portions are denoted by the same reference numerals, and description thereof is omitted.

  The in-vehicle device 2 of the audio characteristic adjustment system 50 includes a wireless communication unit 21 instead of the memory stick slot 19 and the memory stick control unit 20 in the in-vehicle device 2 of the audio characteristic adjustment system 1. In addition, the communication terminal device 3 of the voice characteristic adjustment system 50 includes a wireless communication unit 36 instead of the memory stick slot 34 and the memory stick control unit 35 in the communication terminal device 3 of the voice characteristic adjustment system 1.

  The radio communication unit 21 of the in-vehicle device 2 is a radio communication unit that performs radio communication with the communication terminal device 3 via radio waves and transmits and receives information. The wireless communication unit 36 of the communication terminal device 3 is a wireless communication unit that performs wireless communication with the in-vehicle device 2 via wireless radio waves and transmits and receives information. The wireless communication unit 21 of the in-vehicle device 2 and the wireless communication unit 36 of the communication terminal device 3 are realized by, for example, a wireless communication device based on the Bluetooth standard.

  The communication terminal device 3 including the wireless communication unit 36 is disposed near or inside the vehicle on which the in-vehicle device 2 including the wireless communication unit 21 is mounted, and the wireless communication unit 21 and the communication terminal device 3 of the in-vehicle device 2 are disposed. Wireless communication with the wireless communication unit 36 via wireless radio waves. Thus, transmission / reception of characteristic information related to frequency characteristics of sound acquired in the vehicle and transmission / reception of parameters determined by the server device 5 and determining frequency characteristics of sound output by the speaker 12 are performed via radio waves. It is possible to obtain the same effect as the sound characteristic adjustment system 1 described above.

  In addition, by performing wireless communication via radio waves between the in-vehicle device 2 and the communication terminal device 3, an operation for attaching the memory stick to the in-vehicle device 2 and the communication terminal device 3, and the memory stick to the in-vehicle device 2. In addition, it is possible to save the labor of detaching from the communication terminal device 3. As a result, the in-vehicle device 2 supplies information to the communication terminal device 3 to perform communication as compared with the case where the recording medium such as a memory stick is attached to the in-vehicle device 2 and the communication terminal device 3 to record and reproduce information. The time taken for the terminal device 3 to acquire information supplied from the in-vehicle device 2, the information that the communication terminal device 3 supplies information to the in-vehicle device 2, and the in-vehicle device 2 supplies information from the communication terminal device 3. The time taken to acquire can be shortened.

  Therefore, compared with the case where information is recorded and reproduced by mounting a recording medium such as a memory stick on the in-vehicle device 2 and the communication terminal device 3, the frequency characteristics of the sound output by the speaker 12 are optimized. In the embodiment, it is possible to reduce the time required to adjust the sound pressure frequency characteristics of the sound to be flat.

  In the above-described embodiment, the configuration of the voice characteristic adjustment systems 1 and 50 when the Internet 4 is applied as the public line network has been described. However, in another embodiment of the present invention, for example, a wide area network (abbreviation) : WAN) and the like.

  In the above-described embodiment, the configuration of the audio characteristic adjustment system 1 in the case where a memory stick is applied as a recording medium that is detachably attached to the in-vehicle device 2 and the communication terminal device 3 has been described. In the embodiment, the present invention can also be suitably applied to recording media such as a compact flash (registered trademark) card and an SD (Secure Digital) memory card.

  In the above-described embodiment, the configuration of the audio characteristic adjustment systems 1 and 50 when the electronic device is mounted on the vehicle and used as the in-vehicle device 2 has been described. However, the other embodiments of the present invention are not limited to the vehicle. For example, even when an electronic device is installed in a room of a general house, it can be suitably implemented.

It is a block diagram which simplifies and shows the structure of the audio | voice characteristic adjustment system 1 which is one Embodiment of this invention. 4 is a flowchart for explaining a processing procedure for adjusting a frequency characteristic of sound in the sound characteristic adjusting system 1; It is a block diagram which simplifies and shows the structure of the audio | voice characteristic adjustment system 50 which is other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,50 Voice characteristic adjustment system 2 In-vehicle apparatus 3 Communication terminal apparatus 4 Internet 5 Server apparatus 11, 31 CPU (Central Processing Unit)
12 Microphone 13 Speaker 14 Input unit 15 Display unit 16, 32 ROM (Read Only Memory)
17, 33 RAM (Random Access Memory)
18 Voice characteristic adjustment unit 19, 34 Memory stick slot 20, 35 Memory stick control unit 21, 36 Wireless communication unit 41 Parameter calculation unit

Claims (6)

Audio output means for outputting audio;
Voice input means for inputting voice output from the voice output means;
A characteristic output means for outputting characteristic information related to the frequency characteristic of the input voice to an external device;
Parameter input means for inputting parameters for determining the frequency characteristics of the sound output by the sound output means;
An electronic device comprising: sound characteristic adjusting means for adjusting frequency characteristics of sound output by the sound output means based on input parameters.   2. The electronic apparatus according to claim 1, wherein the characteristic output means is a recording means on which a recording medium is detachably attached and records information on the attached recording medium.   2. The electronic apparatus according to claim 1, wherein the parameter input means is a reproducing means for removably attaching a recording medium and reproducing information recorded on the attached recording medium.   4. The electronic apparatus according to claim 2, wherein the recording medium is a semiconductor memory.   2. The electronic apparatus according to claim 1, wherein the characteristic output means is wireless communication means for performing wireless communication with an external apparatus via wireless radio waves and transmitting information to the external apparatus.   2. The electronic apparatus according to claim 1, wherein the parameter input means is wireless communication means for performing wireless communication with an external apparatus via wireless radio waves and receiving information transmitted from the external apparatus.

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