JP2013232702A - Electronic apparatus and voice processing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic apparatus and a voice processing method which can adjust voice while reducing generation of abnormal sound.SOLUTION: An electronic apparatus comprises: a processing unit 35 which performs voice processing on the basis of an adjustment value for voice processing; a receiver 23 or a speaker 24 which outputs the voice processed by the processing unit 35; and a control unit 36 which starts the voice processing, and outputs the processed voice via the receiver 23 or the speaker 24 after a predetermined time passes. For example, the adjustment value for the voice processing is generated according to operations on an operation unit 11.

Description

  The present invention relates to an electronic device having a sound adjustment function and a sound processing method.

  Some electronic devices are equipped with a function for assisting hearing (see, for example, Patent Document 1). With these electronic devices, it is possible to adjust the sound in accordance with the user's hearing.

JP 2000-209698 A

  By the way, when sound adjustment is started during a call or during sound collection, there is a possibility that abnormal noise may occur.

  An object of the present invention is to provide an electronic device and a sound processing method that can adjust sound while reducing the occurrence of abnormal noise.

  In order to solve the above problems, an electronic device according to the present invention is a processing unit that processes audio based on an adjustment value of audio processing, an audio output unit that outputs audio processed by the processing unit, and The audio processing is started, and a control unit that outputs the processed audio from the audio output unit after a predetermined period has elapsed.

  The electronic device includes a communication unit that communicates with an external device, the processing unit processes audio input by the communication unit, and the control unit communicates with the external device by the communication unit. When the adjustment value is input during the operation, the processing unit is controlled to perform sound processing based on the input adjustment value, and the sound processing is started. A configuration may be employed in which the processed sound is output from the sound output unit after the period has elapsed.

  The electronic device includes a sound collection unit, the processing unit processes sound input by the sound collection unit, and the control unit collects sound by the sound collection unit. When an adjustment value is input, the processing unit is controlled to perform audio processing based on the input adjustment value, and the audio processing is started. The voice may be output from the voice output unit.

  In the electronic device, the processing unit may be configured to perform a process of changing the frequency characteristics of sound.

  In order to solve the above-described problem, the audio processing method according to the present invention starts the audio processing based on the adjustment value and the audio processing. It is the structure provided with the process output from an output part.

  According to the present invention, it is possible to adjust sound while reducing the occurrence of abnormal noise.

It is an external perspective view of a mobile phone. It is a block diagram which shows the function structure of a mobile telephone. It is a figure which shows a hearing characteristic. It is a figure which shows the hearing characteristic of the person whose hearing ability is not falling. It is a figure which shows the hearing characteristic of the person whose hearing loss fell. It is a figure which contrasts how to hear the sound of a person whose hearing ability is not lowered, and how to hear the sound of a person whose hearing ability is lowered. It is a flowchart with which it uses for description about the flow of operation | movement by a mobile telephone. It is a figure with which it uses for description about the flow of the process which adjusts an audio | voice during a call.

Hereinafter, a mobile phone as an electronic apparatus of the present invention will be described.
FIG. 1 is an external perspective view of the mobile phone according to the present embodiment.
As shown in FIG. 1, the mobile phone 1 includes a first housing 2 and a second housing 3. The mobile phone 1 includes a connecting portion 4 that connects the first housing 2 and the second housing 3 so as to be openable and closable.

The mobile phone 1 is configured to be deformable into a closed state as a first form and an open state as a second form.
In the closed state, the first housing 2 and the second housing 3 are disposed so as to overlap each other. In the closed state of this embodiment, it arrange | positions so that the main surfaces in both housings may oppose.

  In the open state, the main surface of the first housing 2 and the main surface of the second housing 3 are arranged to be exposed. In the open state of the present embodiment, as shown in FIG. 1, the main surface of the first housing 2 and the main surface of the second housing 3 are arranged apart from each other.

The first housing 2 includes an operation unit 11, a microphone 12 as an input unit, a power operation unit 17, and various interfaces. The operation unit 11, the microphone 12 as an input unit, and the power supply operation unit 17 are arranged on the main surface of the first housing 2.
The operation unit 11 includes function keys 13, character keys 14, operation keys 15, and side keys 16.

  The function keys 13 are used to activate various functions such as various settings of the mobile phone 1, a telephone directory function, or a mail function. The character key 14 is used to input numbers of telephone numbers or mail characters. The operation keys 15 are used for determination in various operations or scrolling in the up / down / left / right directions. The side key 16 is used to operate various functions such as various settings of the mobile phone 1, a telephone directory function, or a mail function.

  A function is assigned to each of the keys constituting the operation unit 11. The assignment of this function is changed according to the open / closed state of the mobile phone 1, various modes, the type of the activated application, and the like. When each of these keys is pressed by the user, the mobile phone 1 operates according to the function assigned when the key is pressed.

  The microphone 12 is at the end of the first housing 2 in the longitudinal direction. The microphone 12 is disposed at one end when the mobile phone 1 is in the open state.

The power supply operation unit 17 is an operation unit for turning on or off the main power supply of the mobile phone 1.
The various interfaces include an interface for communicating with an external device and an interface for inserting and removing an external memory. In the present embodiment, the mobile phone 1 includes a connection unit 33 described later as one of various interfaces. The external device is, for example, a host device. Various interfaces are covered with caps when not in use.

The second housing 3 includes a display unit 21 and a receiver 23. The display unit 21 and the receiver 23 are disposed on the main surface of the second housing 3.
The display unit 21 is configured to be able to display various information such as character information or image information.
The receiver 23 is disposed on the main surface of the second housing 3. The receiver 23 is disposed at the end of the second housing 3 in the longitudinal direction. The receiver 23 is covered with the first housing 2 in the closed state, and is opened in the open state.

  The connecting part 4 has an open / close hinge mechanism. The connecting portion 4 is disposed between the end of the first housing 2 and the end of the second housing 3. The connecting portion 4 connects the first housing 2 and the second housing 3 so as to be relatively movable. The connection part 4 of this embodiment connects the 1st housing | casing 2 and the 2nd housing | casing 3 mutually so that rotation is possible. The first housing 2 and the second housing 3 rotate around the rotation axis Z. The mobile phone 1 is rotated around the rotation axis Z and deformed into a first form and a second form.

  As shown in FIG. 2, the mobile phone 1 includes an operation unit 11, a microphone 12, a display unit 21, a driver 22, a receiver 23, a speaker 24, a communication unit 31, a processing unit 32, and a storage unit. 34, a processing unit 35, and a control unit 36. Note that the receiver 23 is a concept of an audio processing unit.

The receiver 23 outputs sound.
The speaker 24 outputs an operation sound or a ring tone of the mobile phone 1. The speaker 24 may be provided in the first housing 2.

The communication unit 31 includes an antenna unit 311 and a communication processing unit 312.
The antenna unit 311 performs wireless communication with the base station using a signal modulated in a predetermined frequency band. Note that the predetermined frequency band is, for example, an 800 MHz band. The antenna unit 311 transmits the audio signal that has been modulated by the communication processing unit 312 to the base station. The antenna unit 311 communicates with other communication devices via the base station.

  The communication processing unit 312 modulates a signal to be transmitted to the base station in a predetermined frequency band. The communication processing unit 312 demodulates the signal received from the base station in a predetermined frequency band. The communication processing unit 312 outputs the demodulated signal to the control unit 36.

  The processing unit 32 performs image processing. The processing unit 32 outputs the processed image data to the driver 22. The driver 22 includes a frame memory. The driver 22 stores the image data supplied from the processing unit 32 in a memory. Then, the driver 22 outputs the image data stored in the memory to the display unit 21. When image processing is performed by the control unit 36, the processing unit 32 may be omitted.

  The storage unit 34 stores a plurality of application programs. The storage unit 34 may be fixed inside the mobile phone 1 or may be detachable.

The processing unit 35 performs audio processing.
The control unit 36 controls the entire mobile phone 1.
The control unit 36 includes, for example, a CPU (Central Processing Unit). The control unit 36 may include a plurality of microprocessors.

The mobile phone 1 configured as described above has a function of adjusting sound during a call or during sound collection. By the way, if the mobile phone 1 suddenly switches from the sound before adjustment to the sound after adjustment, an abnormal sound may be generated. Note that the abnormal sound is, for example, an unpleasant treble.
The mobile phone 1 can output such adjusted sound by reducing such abnormal noise during a call or during sound collection. A specific configuration will be described below.

  As described above, the mobile phone 1 includes the operation unit 11, the receiver 23, the speaker 24, the processing unit 35, and the control unit 36. The receiver 23 and the speaker 24 are one concept of an audio processing unit.

The receiver 23 outputs the sound processed by the processing unit 35.
The processing unit 35 processes the sound based on the adjustment value of the sound processing.
The control unit 36 starts voice processing, and outputs the processed voice from the receiver 23 or the speaker 24 after a predetermined period has elapsed.

The adjustment value may be generated according to the operation when any key of the operation unit 11 is pressed. The adjustment value may be generated based on a signal transmitted from the outside.
“Start” means not only when an adjustment value is input and audio processing is started based on the adjustment value in a state where the sound is processed without being based on the adjustment value. This is a concept that includes a case where different adjustment values are input in a state where audio processing is being performed, and audio processing is started based on the different adjustment values.

  Specifically, the control unit 36 controls the processing unit 35 to perform voice processing based on an adjustment value corresponding to the operation of the operation unit 11. The control unit 36 controls the receiver 23 or the speaker 24 so as not to output the sound for a predetermined period from the start of the processing of the sound, and outputs the processed sound from the receiver 23 or the speaker 24 after the predetermined period has elapsed. . Examples of the control method for preventing audio from being output from the receiver 23 or the speaker 24 include a method of stopping output of an audio signal to the receiver 23 or the speaker 24, a method of stopping power supply to the receiver 23 or the speaker 24, and the like. It is done.

  With this configuration, the mobile phone 1 outputs audio from the receiver 23 or the speaker 24 for a predetermined period, for example, when an operation for processing audio is performed by the operation unit 11 during a call. Stop. The mobile phone 1 outputs sound from the receiver 23 or the speaker 24 after a predetermined period. Therefore, the mobile phone 1 can reduce the abnormal noise and output the adjusted sound.

As described above, the mobile phone 1 includes the communication unit 31 that performs communication with an external device.
When an adjustment value is input when the communication unit 31 communicates with an external device, the control unit 36 controls the processing unit 35 to perform audio processing based on the adjustment value. . The control unit 36 controls the receiver 23 or the speaker 24 so as not to output the sound for a predetermined period from the start of the sound processing, and outputs the processed sound from the receiver 23 or the speaker 24 after the predetermined period has elapsed.

  With this configuration, the mobile phone 1 stops outputting audio from the receiver 23 or the speaker 24 for a predetermined period when an operation for processing audio is performed by the operation unit 11 during a call. . The mobile phone 1 outputs sound from the receiver 23 or the speaker 24 after a predetermined period. Therefore, the mobile phone 1 can reduce the abnormal noise and output the adjusted sound.

  As shown in FIG. 1, the mobile phone 1 may include a sound collecting unit 37 that captures ambient sounds. By using the sound collection unit 37, the mobile phone 1 can perform a correction process so that the captured voice is easy to hear and can serve as a sound collector that outputs from the receiver 23 or the speaker 24. The cellular phone 1 can also serve as a voice recorder that records conversations by using the sound collecting unit 37.

  When an adjustment value is input while the sound collecting unit 37 is collecting sound, the control unit 36 controls the processing unit 35 to perform sound processing based on the adjustment value. To do. The control unit 36 controls the receiver 23 or the speaker 24 so that the sound is not output for a predetermined period from the start of the sound processing, and outputs the processed sound from the receiver 23 or the speaker 24 after the predetermined period has elapsed. .

  With this configuration, the mobile phone 1 is configured to perform an operation for processing the sound by the operation unit 11 when the sound collecting unit 37 captures the surrounding sound and outputs the sound from the receiver 23 or the speaker 24. Is performed, the audio output from the receiver 23 or the speaker 24 is stopped for a predetermined period. The mobile phone 1 outputs sound from the receiver 23 or the speaker 24 after a predetermined period. Therefore, the mobile phone 1 can reduce the abnormal noise and output the adjusted sound.

The processing unit 35 may be configured to perform processing for changing the frequency characteristics of audio.
Here, specific processing by the processing unit 35 will be described.
The processing unit 35 refers to the adjustment table in which the adjustment value according to the operation of the operation unit 11 and the audio adjustment amount are associated with each other. In addition, although an adjustment table shall be memorize | stored in the memory | storage part 34, it is not restricted to this.

  When the adjustment value according to the operation of the operation unit 11 is supplied from the control unit 36, the processing unit 35 refers to the adjustment table and adjusts the sound with the adjustment amount corresponding to the adjustment value. The adjusted sound is output from the receiver 23 or the speaker 24.

  FIG. 3 is a diagram showing hearing characteristics (sound magnitude with respect to frequency) in a certain age. The hatched portion in FIG. 3 generally indicates a region where a person of a certain age cannot hear or is difficult to hear. As the age increases, the allowable range in the high frequency region tends to narrow.

  The processing unit 35 adjusts the sound so that it does not fall out of the white area shown in FIG. For example, the processing unit 35 adjusts the sound of 1,600 Hz to be 50 dB (decibel) or more and 90 dB or less based on the adjustment value according to the operation of the operation unit 11.

  FIG. 4 is a diagram illustrating the hearing characteristics of a person whose hearing is not reduced. FIG. 5 is a diagram illustrating the hearing characteristics of a person whose hearing ability has decreased. FIG. 6 is a diagram comparing how the sound of a person whose hearing ability has not decreased is heard with how the sound of a person whose hearing ability has decreased.

  As shown in FIG. 4, an area of 90 dB or more and an area of 40 dB or less are divided. As shown in FIG. 4, a sound of 40 dB or less is a sound that is difficult for a person whose hearing ability is not lowered to hear. A sound of 90 dB or more is generally a sound that is felt noisy by a person whose hearing ability has not deteriorated. As shown in FIG. 5, the loudness of a sound that can be heard well by a person with reduced hearing is different at a higher frequency than the loudness of a sound that can be heard well by a person whose hearing has not decreased. For example, a person with reduced hearing feels that it is difficult to hear a sound of about 65 dB or less at a frequency of 3,000 Hz. A person with reduced hearing does not feel noisy even at a sound of about 100 dB at 4,000 Hz.

  4 and 5 show the sizes of vowels, voiced consonants, and unvoiced consonants. As shown in FIGS. 4 and 5, vowels and voiced consonants usually fall within the range of 40 dB to 90 dB. Unvoiced consonants typically fall in the high frequency range of 30 dB to 60 dB. Unvoiced consonants tend to be heard as small sounds compared to vowels and voiced consonants.

  As shown in FIG. 4, a person whose hearing ability is not lowered can listen to a sound from 40 dB to 90 dB with respect to a sound from 300 Hz to 3,400 Hz. As shown in FIG. 5, a person whose hearing ability has decreased tends to become difficult to hear as the frequency of the sound increases. A person whose hearing ability has decreased tends to make it difficult to hear voiced and unvoiced consonants, although vowels can be heard.

  As shown in FIG. 6, a person whose hearing ability is reduced hardly hears a sound smaller than a predetermined volume. A person whose hearing ability has decreased can feel a sound larger than a sound of a predetermined volume in the same manner as a person whose hearing ability has not decreased. For example, a sound having a loudness corresponding to the range A in FIG. 6 can be heard in the same manner as a person whose hearing ability has decreased and a person whose hearing ability has not decreased.

The processing unit 35 may be configured to select an adjustment table of hearing characteristics suitable for the user's age based on profile information registered in advance by the user or an operation by the user.
The processing unit 35 may be configured to refer to the selected adjustment table based on the adjustment value according to the operation of the operation unit 11 and adjust the frequency characteristic of the sound with the adjustment amount corresponding to the adjustment value.

  Next, the operation flow of the mobile phone 1 will be described with reference to the flowchart shown in FIG. In the following, it is assumed that the other party's voice is adjusted during a call.

  In step ST1, the control unit 36 determines whether an adjustment value has been input. If it is determined that the adjustment value has been input (Yes), the process proceeds to step ST2, and if it is determined that the adjustment value has not been input (No), step ST1 is repeated.

  In step ST2, the control unit 36 controls the processing unit 35 to perform audio processing based on the adjustment value.

  In step ST3, the control unit 36 controls the receiver 23 or the speaker 24 so as not to output sound for a predetermined period from the start of the sound processing.

  In step ST <b> 4, the processing unit 35 outputs the processed sound from the receiver 23 or the speaker 24 after a predetermined period has elapsed.

  For example, when the voice is being output from the receiver 23 or the speaker 24 during a call (see FIG. 8A), the control unit 36 is pressed when the up / down key or the left / right key of the operation key 15 is pressed. Displays a “hearing setting” screen, which means the setting of the frequency characteristics of the sound (FIG. 8B). The set value is changed according to the number of times the operation key 15 is pressed.

During a call (see FIG. 8 (a)), when the side key 16 is pressed while sound is being output from the receiver 23 or the speaker 24, this means setting the sound volume. The “received sound volume” screen is displayed (FIG. 8C). The set value is changed according to the number of times the side key 16 is pressed.
In addition, when correcting the volume (volume) of the sound, the control unit 36 outputs the sound from the receiver 23 or the speaker 24 without stopping the sound even during the correction period.

  With this configuration, the mobile phone 1 stops outputting audio from the receiver 23 or the speaker 24 for a predetermined period when an operation for processing audio is performed by the operation unit 11 during a call. . The mobile phone 1 outputs sound from the receiver 23 or the speaker 24 after a predetermined period. Therefore, the mobile phone 1 can adjust the sound without generating an abnormal sound during a call.

DESCRIPTION OF SYMBOLS 1 Cellular phone 23 Receiver 24 Speaker 31 Communication part 34 Storage part 35 Processing part 36 Control part 37 Sound collecting part

Claims (5)

A processing unit that processes the sound based on the adjustment value of the sound processing;
An audio output unit for outputting the audio processed by the processing unit;
An electronic apparatus including a control unit that starts processing the sound and outputs the processed sound from the sound output unit after a predetermined period of time has elapsed. It has a communication unit that communicates with external devices,
The processing unit processes the voice input by the communication unit,
When the control unit is communicating with the external device by the communication unit and the adjustment value is input, the control unit performs processing of sound based on the input adjustment value. The electronic apparatus according to claim 1, wherein the processing unit is controlled to start processing the sound, and the processed sound is output from the sound output unit after a predetermined period has elapsed. It has a sound collection part,
The processing unit processes the voice input by the sound collection unit,
When the adjustment value is input while the sound collection unit is collecting sound, the control unit performs sound processing based on the input adjustment value. The electronic apparatus according to claim 1, wherein the processing unit is controlled to start processing the sound, and the processed sound is output from the sound output unit after a predetermined period has elapsed.   The electronic device according to claim 1, wherein the processing unit performs a process of changing a frequency characteristic of sound. A processing step for processing the sound based on the adjustment value;
An audio processing method comprising a step of starting the audio processing and outputting the processed audio from an audio output unit after a predetermined period has elapsed.

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